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Mendeliome v1.1889 DCC Zornitza Stark commented on gene: DCC: Third family reported with biallelic variants and scoliosis, PMID 33141514; novel homozygous frameshift variant (p.Asn800Lysfs*11) in three individuals.
Mendeliome v1.1888 SLC7A5 Sangavi Sivagnanasundram gene: SLC7A5 was added
gene: SLC7A5 was added to Mendeliome. Sources: Other
Mode of inheritance for gene: SLC7A5 was set to Unknown
Publications for gene: SLC7A5 were set to 29884839
Phenotypes for gene: SLC7A5 were set to Large neutral amino acid transporter deficiency (MIM#600182)
Review for gene: SLC7A5 was set to RED
Added comment: Classified an inborn error of amino acid metabolism by IEMbase however more evidence is required to support the gene-disease association.
Sources: Other
Mendeliome v1.1888 CRNKL1 Mark Cleghorn gene: CRNKL1 was added
gene: CRNKL1 was added to Mendeliome. Sources: Other
Mode of inheritance for gene: CRNKL1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Phenotypes for gene: CRNKL1 were set to complex neurodevelopmental disorder MONDO:0100038
Review for gene: CRNKL1 was set to GREEN
Added comment: Unpublished, presented at ESHG June 2024 - Louise Bicknell, University of Otago NZ
8 unrelated families via gene matcher with rare, de novo, missense variants in CRNKL1
severe microcephaly (all, -8 to -11 SD)
ID/epilepsy
pontocerebellar hypoplasia (6/8)
simplified gyration (8/8)
7 variants are missense at p.Arg267 residue
1 variant missense at p.Arg301
RNA-seq on patient fibroblasts - no alteration in gene expression
Zebrafish homolog of Arg267 and Arg301 - mimics observed phenotype (reduced brain development), increased in embryo apoptosis
RNA seq on affected zebrafish embryos - transcriptome strongly disrupted
Splicing analysis in progress

CRKNL1 supports U6 structure in spliceosome
Sources: Other
Mendeliome v1.1884 MYZAP Zornitza Stark changed review comment from: 10 individuals from four unrelated families with bi-allelic variants in this gene with DCM. Supportive zebrafish model. Note the MYZAP and GCOM1 genes are part of the GRINL1A complex transcription unit. Some of the reported variants affect GCOM1 with postulated effect on MYZAP due to read through transcription (two families), and in the rest of the families MYZAP was affected directly.
Sources: Literature; to: 10 individuals from four unrelated families with bi-allelic variants in this gene with DCM. Supportive zebrafish model.

The MYZAP gene is part of the GRINL1A complex transcription unit (CTU), or GCOM1, which also includes the downstream POLR2M gene, or GRINL1A.. Some of the reported variants affect GCOM1 with postulated effect on MYZAP due to read through transcription (two families), and in the rest of the families MYZAP was affected directly.

Transcription from an upstream promoter within the GRINL1A CTU produces 2 types of alternatively spliced transcripts: MYZAP transcripts, also called GRINL1A upstream (GUP) transcripts, which include only exons from the MYZAP gene, and GRINL1A combined (GCOM) transcripts, which include exons from both the MYZAP gene and the downstream POLR2M gene. Transcription of the POLR2M gene initiates at a downstream promoter within the GRINL1A CTU and produces alternatively spliced POLR2M transcripts, also called GRINL1A downstream (GDOWN) transcripts, which include only exons from the POLR2M gene
Sources: Literature
Mendeliome v1.1883 MYZAP Zornitza Stark gene: MYZAP was added
gene: MYZAP was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MYZAP was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MYZAP were set to 34899865; 35840178; 38436102; 20093627
Phenotypes for gene: MYZAP were set to Cardiomyopathy, dilated, 2K, MIM# 620894
Review for gene: MYZAP was set to GREEN
Added comment: 10 individuals from four unrelated families with bi-allelic variants in this gene with DCM. Supportive zebrafish model. Note the MYZAP and GCOM1 genes are part of the GRINL1A complex transcription unit. Some of the reported variants affect GCOM1 with postulated effect on MYZAP due to read through transcription (two families), and in the rest of the families MYZAP was affected directly.
Sources: Literature
Mendeliome v1.1877 FDXR Zornitza Stark edited their review of gene: FDXR: Added comment: Multiple reports of individuals with extra-ocular features, including ID and regression.; Changed publications: 30250212, 28965846, 29040572, 33348459, 37046037, 37481223; Changed phenotypes: Auditory neuropathy and optic atrophy, MIM#617717, Neurodevelopmental disorder with mitochondrial abnormalities, optic atrophy, and developmental regression, MIM# 620887
Mendeliome v1.1876 SELENBP1 Sangavi Sivagnanasundram gene: SELENBP1 was added
gene: SELENBP1 was added to Mendeliome. Sources: ClinGen
Mode of inheritance for gene: SELENBP1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SELENBP1 were set to 29255262
Phenotypes for gene: SELENBP1 were set to extraoral halitosis due to methanethiol oxidase deficiency MONDO:0029144
Review for gene: SELENBP1 was set to GREEN
Added comment: 3 unrelated probands in one publication. All reported individuals had a “cabbage-like” breath odour due to the elevated levels of methanethiol and dimethylsulfide in their breath.
Knockout mouse model recapitulating the human phenotype including the biochemical characteristics.

Classified as Moderate by ClinGen Aminoacidopathy GCEP on 11/11/2022
https://search.clinicalgenome.org/CCID:006103
Sources: ClinGen
Mendeliome v1.1876 PRODH2 Sangavi Sivagnanasundram gene: PRODH2 was added
gene: PRODH2 was added to Mendeliome. Sources: ClinGen
Mode of inheritance for gene: PRODH2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PRODH2 were set to 27139199
Phenotypes for gene: PRODH2 were set to hydroxyprolinemia MONDO:0009374
Review for gene: PRODH2 was set to RED
Added comment: PMID: 27139199
Variants reported in 6 individuals however only 2 cases presented with intermittant biochemical phenotype however the cause remains unclear. The rest of the individuals were asymptomatic suggesting that hydroxyprolinemia is a benign condition.

Classified as Limited by ClinGen Aminoacidopathy GCEP on 12/12/2022
https://search.clinicalgenome.org/CCID:005893
Sources: ClinGen
Mendeliome v1.1875 GAS2 Zornitza Stark gene: GAS2 was added
gene: GAS2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GAS2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GAS2 were set to 33964205
Phenotypes for gene: GAS2 were set to Deafness, autosomal recessive 125, MIM#620877
Review for gene: GAS2 was set to AMBER
Added comment: Single family reported with four affected brothers and a splicing variant. Supportive mouse model.
Sources: Literature
Mendeliome v1.1872 SREBF2 Zornitza Stark gene: SREBF2 was added
gene: SREBF2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SREBF2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SREBF2 were set to 38847193
Phenotypes for gene: SREBF2 were set to Neurocutaneous syndrome, MONDO:0042983, SREBF2-related
Review for gene: SREBF2 was set to AMBER
Added comment: Two individuals with de novo missense variants, presenting with neurological, cutaneous and skeletal features; supportive functional data.
Sources: Literature
Mendeliome v1.1865 PSMF1 Zornitza Stark gene: PSMF1 was added
gene: PSMF1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PSMF1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PSMF1 were set to https://www.medrxiv.org/content/10.1101/2024.06.19.24308302v1
Phenotypes for gene: PSMF1 were set to Complex neurodevelopmental disorder with motor features, MONDO:0100516, PSMF1-related
Review for gene: PSMF1 was set to GREEN
Added comment: 22 individuals from 15 families reported with a range of neurological phenotypes ranging from early-onset Parkinson's disease; childhood conditions typified by ID and a range of movement disorders; through to perinatal lethal presentations with arthrogryposis multiplex. Genotype-phenotype correlation: biallelic missense variants resulted in the milder phenotypes, while bi-allelic LoF variants in the more severe phenotypes. Supportive functional data.
Sources: Literature
Mendeliome v1.1855 C10orf71 Sangavi Sivagnanasundram gene: C10orf71 was added
gene: C10orf71 was added to Mendeliome. Sources: Other
Mode of inheritance for gene: C10orf71 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: C10orf71 were set to 38950288
Phenotypes for gene: C10orf71 were set to dilated cardiomyopathy MONDO:0005021
Review for gene: C10orf71 was set to GREEN
Added comment: Identified a frameshift variant in a large multigenerational family with 8 affected individuals.
Further identified four other loss of function variants in a large Chinese cohort of sporadic DCM cases. >50 unrelated individuals identified with loss of function variants.

c10orf71-Knockout mouse model recapitulating DCM human phenotype (impairs cardiac function) in the presence of the frameshift variant.
Sources: Other
Mendeliome v1.1851 RBFOX3 Zornitza Stark gene: RBFOX3 was added
gene: RBFOX3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RBFOX3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RBFOX3 were set to 35951651; 36117209; 24039908
Phenotypes for gene: RBFOX3 were set to Neurodevelopmental disorder (MONDO:0700092), RBFOX3-related
Review for gene: RBFOX3 was set to AMBER
Added comment: Reported as a candidate gene for epilepsy, particularly Rolandic epilepsy. Two supportive animal models.
Sources: Literature
Mendeliome v1.1847 GRXCR2 Zornitza Stark edited their review of gene: GRXCR2: Added comment: PMID:33528103 reported another family and an unrelated individual from Cameroon with a different homozygous variant (c.251delC/ p.Ile85SerfsTer33).; Changed rating: GREEN; Changed publications: 24619944, 33528103
Mendeliome v1.1846 ERBB4 Zornitza Stark changed review comment from: ALS: at least 4 families reported with SNVs.

ID: intragenic deletions in 3 families, some inherited.; to: ALS: at least 4 families reported with SNVs, but LIMITED by ClinGen.

ID: intragenic deletions in 3 families, some inherited. Unclear if SNVs cause phenotype.
Mendeliome v1.1840 SUMF1 Achchuthan Shanmugasundram changed review comment from: PMID:38863195 reported three unrelated cases with biallelic SUMF1 variants and retinal dystrophy. One of them was a paediatric patient with an attenuated phenotype, while the other two are adult patients with non-syndromic retinal dystrophy.; to: PMID:38863195 reported three unrelated cases with biallelic SUMF1 variants and retinal dystrophy. One of them was a paediatric patient with an attenuated phenotype, while the other two are adult patients with non-syndromic retinal dystrophy.

Retinal dystrophy is part of the multiple sulfatase deficiency phenotype (MIM #272200) typically associated with biallelic variants in SUMF1, and these cases show that presumed hypomorphic variants in SUMF1 may also be associated with non-syndromic retinal dystrophy.
Mendeliome v1.1840 PRRX1 Melanie Marty changed review comment from: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain.
> These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%.
> These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149)
> Authors discuss how the previous reports of agnathia-otocephaly doesn't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import.

Supporting evidence:
> Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454)

>Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651)

>Agnathia-otocephaly complex, 2 x missense variants (1 x het, 1 x hom) and 2 x frameshifts reported (het). The frameshift variants both occur in a poly A tract (PMID: 21294718, PMID: 22674740, PMID: 23444262, PMID: 22211708). Authors of the more recent publication on Craniosynostosis (PMID: 37154149) cast some doubt on the reports for Agnathia-otocephaly, possible explanations discussed are that this condition is AR and a 2nd hit was missed or another cause was not identified such as variants in OTX2.

> PMID: 7758948 generated a loss-of-function mutation in the mouse Pmx1 gene. Mice homozygous for the mutant allele died soon after birth and exhibited defects of skeletogenesis, which involved the loss or malformation of craniofacial, limb, and vertebral skeletal structures. ; to: Craniosynostosis (MONDO:0015469), PRRX1-related
> 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain.
> These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%.
> These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149)
> Authors discuss how the previous reports of agnathia-otocephaly doesn't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import.

Supporting evidence:
> Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454)

>Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651)

Agnathia-otocephaly complex, MIM# 202650
>Agnathia-otocephaly complex, 2 x missense variants (1 x het, 1 x hom) and 2 x frameshifts reported (het). The frameshift variants both occur in a poly A tract (PMID: 21294718, PMID: 22674740, PMID: 23444262, PMID: 22211708). Authors of the more recent publication on Craniosynostosis (PMID: 37154149) cast some doubt on the reports for Agnathia-otocephaly, possible explanations discussed are that this condition is AR and a 2nd hit was missed or another cause was not identified such as variants in OTX2.

> PMID: 7758948 generated a loss-of-function mutation in the mouse Pmx1 gene. Mice homozygous for the mutant allele died soon after birth and exhibited defects of skeletogenesis, which involved the loss or malformation of craniofacial, limb, and vertebral skeletal structures.
Mendeliome v1.1840 PRRX1 Melanie Marty changed review comment from: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain.
> These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%.
> These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149)
> Authors discuss how the previous reports of agnathia-otocephaly doesn't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import.

Supporting evidence:
> Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454)

>Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651)

>Agnathia-otocephaly complex, 2 x missense variants (1 x het, 1 x hom) and 2 x frameshifts reported (het). The frameshift variants both occur in a poly A tract (PMID: 21294718, PMID: 22674740, PMID: 23444262, PMID: 22211708). Authors of the more recent publication on Craniosynostosis (PMID: 37154149) cast some doubt on the reports for Agnathia-otocephaly, possible explanations discussed are that this condition is AR and a 2nd hit was missed or another cause was not identified such as variants in OTX2.; to: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain.
> These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%.
> These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149)
> Authors discuss how the previous reports of agnathia-otocephaly doesn't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import.

Supporting evidence:
> Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454)

>Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651)

>Agnathia-otocephaly complex, 2 x missense variants (1 x het, 1 x hom) and 2 x frameshifts reported (het). The frameshift variants both occur in a poly A tract (PMID: 21294718, PMID: 22674740, PMID: 23444262, PMID: 22211708). Authors of the more recent publication on Craniosynostosis (PMID: 37154149) cast some doubt on the reports for Agnathia-otocephaly, possible explanations discussed are that this condition is AR and a 2nd hit was missed or another cause was not identified such as variants in OTX2.

> PMID: 7758948 generated a loss-of-function mutation in the mouse Pmx1 gene. Mice homozygous for the mutant allele died soon after birth and exhibited defects of skeletogenesis, which involved the loss or malformation of craniofacial, limb, and vertebral skeletal structures.
Mendeliome v1.1840 PRRX1 Melanie Marty changed review comment from: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain.
> These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%.
> These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149)
> Authors discuss how the previous reports of agnathia-otocephaly doesn't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import.

Supporting evidence:
> Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454)

>Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651)

>Agnathia-otocephaly complex, 2 x missense variants (1 x het, 1 x hom) and 2 x frameshifts reported (het). The frameshift variants both occur in a poly A tract (PMID: 21294718, PMID: 22674740, PMID: 23444262, PMID: 22211708).; to: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain.
> These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%.
> These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149)
> Authors discuss how the previous reports of agnathia-otocephaly doesn't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import.

Supporting evidence:
> Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454)

>Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651)

>Agnathia-otocephaly complex, 2 x missense variants (1 x het, 1 x hom) and 2 x frameshifts reported (het). The frameshift variants both occur in a poly A tract (PMID: 21294718, PMID: 22674740, PMID: 23444262, PMID: 22211708). Authors of the more recent publication on Craniosynostosis (PMID: 37154149) cast some doubt on the reports for Agnathia-otocephaly, possible explanations discussed are that this condition is AR and a 2nd hit was missed or another cause was not identified such as variants in OTX2.
Mendeliome v1.1840 PRRX1 Melanie Marty changed review comment from: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain.
> These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%.
> These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149)
> Authors discuss how the previous reports of agnathia-otocephaly doen't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import.

Supporting evidence:
> Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454)

>Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651)

>Agnathia-otocephaly complex, 2 x missense variants (1 x het, 1 x hom) and 2 x frameshifts reported (het). The frameshift variants both occur in a poly A tract (PMID: 21294718, PMID: 22674740, PMID: 23444262, PMID: 22211708).; to: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain.
> These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%.
> These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149)
> Authors discuss how the previous reports of agnathia-otocephaly doesn't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import.

Supporting evidence:
> Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454)

>Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651)

>Agnathia-otocephaly complex, 2 x missense variants (1 x het, 1 x hom) and 2 x frameshifts reported (het). The frameshift variants both occur in a poly A tract (PMID: 21294718, PMID: 22674740, PMID: 23444262, PMID: 22211708).
Mendeliome v1.1840 PRRX1 Melanie Marty changed review comment from: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain.
> These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%.
> These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149)
> Authors discuss how the previous reports of agnathia-otocephaly don't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import.


Supporting evidence:
> Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454)

>Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651); to: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain.
> These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%.
> These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149)
> Authors discuss how the previous reports of agnathia-otocephaly doen't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import.

Supporting evidence:
> Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454)

>Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651)

>Agnathia-otocephaly complex, 2 x missense variants (1 x het, 1 x hom) and 2 x frameshifts reported (het). The frameshift variants both occur in a poly A tract (PMID: 21294718, PMID: 22674740, PMID: 23444262, PMID: 22211708).
Mendeliome v1.1840 PRRX1 Melanie Marty changed review comment from: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain.
> These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%.
> These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149)

Supporting evidence:
> Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454)

>Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651); to: > 17 individuals with Craniosynostosis from 14 families had been found to have rare heterozygous variants in PRRX1, loss of function variants (PTCs, start loss and partial/full gene del) or missense variants affecting the homeodomain.
> These consisted of three de novo variants, but for the majority of cases the variant was inherited from an unaffected parent, yielding an estimate for the penetrance of craniosynostosis of 12.5%.
> These results were also supported by immunofluorescence analyses which showed that missense variants within the PRRX1 homeodomain cause abnormal nuclear localisation (PMID: 37154149)
> Authors discuss how the previous reports of agnathia-otocephaly don't fit with this new evidence and they showed that a missense variant previously reported in a patient with agnathia-otocephaly p.(Phe113Leu) did not affect nuclear import.


Supporting evidence:
> Post-natal calvarial stem cells expressing Prrx1 have been shown to reside exclusively in the calvarial suture niche, suggesting a requirement for PRRX1 regarding suture patency during early development (PMID: 28366454)

>Prrx1 has been shown to be widely expressed within the mouse coronal suture (PMID: 34376651)
Mendeliome v1.1838 RDH14 Zornitza Stark gene: RDH14 was added
gene: RDH14 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RDH14 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RDH14 were set to 34848785
Phenotypes for gene: RDH14 were set to Neurodevelopmental disorder, MONDO:0700092, RDH14-related
Review for gene: RDH14 was set to RED
Added comment: Two related individuals with ID and cerebellar atrophy and homozygous LoF variant reported.
Sources: Literature
Mendeliome v1.1837 HYKK Zornitza Stark gene: HYKK was added
gene: HYKK was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: HYKK was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: HYKK were set to 23242558
Phenotypes for gene: HYKK were set to inborn disorder of lysine and hydroxylysine metabolism MONDO:0017351
Review for gene: HYKK was set to RED
Added comment: No known gene-disease association as classified by ClinGen Aminoacidopathy GCEP on 14/07/2023 - https://search.clinicalgenome.org/CCID:005104 HYKK has been reported as a disorders of lysine, hydroxylysine, and tryptophan metabolism by ICIMD however there are no reported pathogenic variants in this gene to support the gene-disease association.
Sources: Literature
Mendeliome v1.1836 KMO Zornitza Stark gene: KMO was added
gene: KMO was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KMO was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: KMO were set to 28187857; 24189070
Phenotypes for gene: KMO were set to pellagra MONDO:0019975
Review for gene: KMO was set to RED
Added comment: Classified as no known disease relationship by ClinGen Aminoacidopathy GCEP on 12/05/2023 - https://search.clinicalgenome.org/CCID:005248 Only two knock out mouse models have ben reported that exhibited behavioural changes including memory impairment and anxiety like behaviour. Not reported as disease causing in any affected individuals at this stage and no evidence of any inborn errors of amino acid metabolism.
Sources: Literature
Mendeliome v1.1831 NAT6 Zornitza Stark gene: NAT6 was added
gene: NAT6 was added to Mendeliome. Sources: Literature
new gene name tags were added to gene: NAT6.
Mode of inheritance for gene: NAT6 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NAT6 were set to 34805998
Phenotypes for gene: NAT6 were set to Auroneurodental syndrome, MIM# 620830
Review for gene: NAT6 was set to RED
Added comment: Case report of two brothers with homozygous missense variant and deafness, periodic hypotonia and dental anomalies.

HGNC approved name is NAA80.
Sources: Literature
Mendeliome v1.1822 HGF Zornitza Stark edited their review of gene: HGF: Added comment: More than 10 families reported with childhood- to late-onset lymphoedema.; Changed publications: 19576567, 38676400, 38791500; Changed phenotypes: Deafness, autosomal recessive 39, MIM# 608265, Lymphoedema, MONDO:0019297, HGF-related; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v1.1821 TKFC Zornitza Stark edited their review of gene: TKFC: Added comment: Single individual reported with homozygous variant and isolated immunodeficiency.; Changed publications: 32004446'38697782; Changed phenotypes: Triokinase and FMN cyclase deficiency syndrome, MIM#618805, Inborn error of immunity, MONDO:0003778, TKFC-related
Mendeliome v1.1820 CYLC1 Zornitza Stark gene: CYLC1 was added
gene: CYLC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CYLC1 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Phenotypes for gene: CYLC1 were set to Spermatogenic failure, X-linked, 8, MIM# 301119
Review for gene: CYLC1 was set to GREEN
Added comment: 19 individuals and a mouse model reported.
Sources: Literature
Mendeliome v1.1816 ATXN7L3 Chirag Patel gene: ATXN7L3 was added
gene: ATXN7L3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ATXN7L3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ATXN7L3 were set to PMID: 38753057
Phenotypes for gene: ATXN7L3 were set to Neurodevelopmental disorder, MONDO_0100500
Review for gene: ATXN7L3 was set to GREEN
gene: ATXN7L3 was marked as current diagnostic
Added comment: This study reports 9 unrelated individuals with de novo heterozygous variants in ATXN7L3 identified through WES testing and GeneMatcher. Core clinical features included: global motor and language developmental delay, hypotonia, and dysmorphic features (hypertelorism, epicanthal folds, blepharoptosis, small nose, small mouth, and low-set posteriorly rotated ears). Variable features included: feeding difficulties, seizures, mild periventricular leukomalacia, and structural cardiac abnormalities.

A recurrent nonsense variant [p.(Arg114Ter)] was found in 5/9 individuals. The other variants were 1 frameshift [p.(Ser112LysfsTer12)] and 3 missense variants [p.(Ile71Thr), p.(Ser92Arg), and p.(Leu106Pro)]. They investigated the effects of the recurrent nonsense variant [p.(Arg114Ter)] in fibroblasts of an affected individual. ATXN7L3 protein levels were reduced, and deubiquitylation was impaired (as indicated by an increase in histone H2Bub1 levels). This is consistent with the previous observation of increased H2Bub1 levels in Atxn7l3-null mouse embryos, which have developmental delay and embryonic lethality.

Pathogenic variants in deubiquitinating enzymes (DUBs) have been implicated in neurodevelopmental disorders (ND) and congenital abnormalities. ATXN7L3 is a component of the DUB module of the SAGA complex, and two other related DUB modules, and serves as an obligate adaptor protein of 3 ubiquitin-specific proteases (USP22, USP27X or USP51).
Sources: Literature
Mendeliome v1.1814 FAM177A1 Chirag Patel gene: FAM177A1 was added
gene: FAM177A1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FAM177A1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FAM177A1 were set to PMID: 38767059, 25558065
Phenotypes for gene: FAM177A1 were set to Neurodevelopmental disorder, MONDO_0100500
Review for gene: FAM177A1 was set to GREEN
gene: FAM177A1 was marked as current diagnostic
Added comment: PMID: 38767059
5 individuals from 3 unrelated families reported with with biallelic loss of function variants in FAM177A1. Clinical features included: global developmental delay, intellectual disability, seizures, behavioural abnormalities, hypotonia, gait disturbance, and macrocephaly.

They showed that FAM177A1 localizes to the Golgi complex in mammalian and zebrafish cells. Intersection of the RNA-seq and metabolomic datasets from FAM177A1-deficient human fibroblasts and whole zebrafish larvae demonstrated dysregulation of pathways associated with apoptosis, inflammation, and negative regulation of cell proliferation.

PMID: 25558065
A study of 143 multiplex consanguineous families identified a homozygous frameshift variant in FAM177A1 in 1 family with 4 affected siblings with intellectual disability, dolicocephaly, obesity, and macrocephaly. The variant segregated with all 4 affected siblings and parents were confirmed heterozygous carriers.
Sources: Literature
Mendeliome v1.1797 GABRA4 Zornitza Stark edited their review of gene: GABRA4: Added comment: Three more novel de novo missense variants in GABRA4 (NM_000809.4): c.797 C > T, p.(Pro266Leu), c.899 C > A, p.(Thr300Asn), and c.634 G > A, p.(Val212Ile) reported.

The p.(Thr300Asn) variant impacts the same codon as the previously reported variant p.(Thr300Ile) and likely arose post-zygotically as evidenced by sequencing oral mucosal cells.

Overlapping phenotypes among affected individuals included developmental delay (4/4), epileptiform EEG abnormalities (3/4), attention deficits (3/4), seizures (2/4), autistic features (2/4) and structural brain abnormalities (2/4).; Changed rating: GREEN; Changed publications: 35152403, 38565639; Changed phenotypes: Neurodevelopmental disorder MONDO:0700092, GABRA4-related
Mendeliome v1.1791 RBBP8 Zornitza Stark edited their review of gene: RBBP8: Added comment: Additional family reported with Jawad syndrome: prev reported founder variant, multi-generational family, abnormal splicing demonstrated.; Changed rating: GREEN; Changed publications: 34270086; Changed phenotypes: Jawad syndrome, MIM# 251255; Changed mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v1.1787 AGTR2 Zornitza Stark changed review comment from: Variants in AGTR2 have been reported in individuals presenting various neurodevelopmental phenotypes, including intellectual disability, autistic features, epileptic seizures, speech delay, restlessness, and hyperactivity, as early as 2002. Per criteria outlined by the ClinGen Lumping and Splitting Working Group, we found no difference in molecular mechanism, inheritance pattern, or phenotypic variability. Therefore, for the purposes of this curation, all of these features have been lumped into one disease entity, X-linked complex neurodevelopmental disorder. Although eight unique variants, including missense and truncating, have been reported in affected humans, the majority (six) have been ruled out from disease-causality based on high frequency in control populations (Piton et al., PMID 23871722), occurrence in unaffected males (Erdmann et al., PMID 14722754), non-segregation within a family (Bienvenu et al., PMID 12746399), and lack of enrichment in patients in a case-control study (Huang et al., PMID 16283672). Given that the two remaining variants are missense with no supporting functional evidence, and AGTR2 was the only gene sequenced in each case, the ClinGen Intellectual Disability and Autism Working Group recommended awarding 0 points for these variants. There are two AGTR2 mouse models which collectively show altered neuronal spine morphology, spatial memory impairment, delayed learning, and reduced exploratory behavior (PMIDs 18335189 and 7477267).
Sources: Expert Review; to: DISPUTED by ClinGen:

Variants in AGTR2 have been reported in individuals presenting various neurodevelopmental phenotypes, including intellectual disability, autistic features, epileptic seizures, speech delay, restlessness, and hyperactivity, as early as 2002. Per criteria outlined by the ClinGen Lumping and Splitting Working Group, we found no difference in molecular mechanism, inheritance pattern, or phenotypic variability. Therefore, for the purposes of this curation, all of these features have been lumped into one disease entity, X-linked complex neurodevelopmental disorder. Although eight unique variants, including missense and truncating, have been reported in affected humans, the majority (six) have been ruled out from disease-causality based on high frequency in control populations (Piton et al., PMID 23871722), occurrence in unaffected males (Erdmann et al., PMID 14722754), non-segregation within a family (Bienvenu et al., PMID 12746399), and lack of enrichment in patients in a case-control study (Huang et al., PMID 16283672). Given that the two remaining variants are missense with no supporting functional evidence, and AGTR2 was the only gene sequenced in each case, the ClinGen Intellectual Disability and Autism Working Group recommended awarding 0 points for these variants. There are two AGTR2 mouse models which collectively show altered neuronal spine morphology, spatial memory impairment, delayed learning, and reduced exploratory behavior (PMIDs 18335189 and 7477267).
Sources: Expert Review
Mendeliome v1.1787 AGTR2 Zornitza Stark gene: AGTR2 was added
gene: AGTR2 was added to Mendeliome. Sources: Expert Review
disputed tags were added to gene: AGTR2.
Mode of inheritance for gene: AGTR2 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Phenotypes for gene: AGTR2 were set to X-linked complex neurodevelopmental disorder MONDO:0100148
Review for gene: AGTR2 was set to RED
Added comment: Variants in AGTR2 have been reported in individuals presenting various neurodevelopmental phenotypes, including intellectual disability, autistic features, epileptic seizures, speech delay, restlessness, and hyperactivity, as early as 2002. Per criteria outlined by the ClinGen Lumping and Splitting Working Group, we found no difference in molecular mechanism, inheritance pattern, or phenotypic variability. Therefore, for the purposes of this curation, all of these features have been lumped into one disease entity, X-linked complex neurodevelopmental disorder. Although eight unique variants, including missense and truncating, have been reported in affected humans, the majority (six) have been ruled out from disease-causality based on high frequency in control populations (Piton et al., PMID 23871722), occurrence in unaffected males (Erdmann et al., PMID 14722754), non-segregation within a family (Bienvenu et al., PMID 12746399), and lack of enrichment in patients in a case-control study (Huang et al., PMID 16283672). Given that the two remaining variants are missense with no supporting functional evidence, and AGTR2 was the only gene sequenced in each case, the ClinGen Intellectual Disability and Autism Working Group recommended awarding 0 points for these variants. There are two AGTR2 mouse models which collectively show altered neuronal spine morphology, spatial memory impairment, delayed learning, and reduced exploratory behavior (PMIDs 18335189 and 7477267).
Sources: Expert Review
Mendeliome v1.1786 AVPR1A Zornitza Stark gene: AVPR1A was added
gene: AVPR1A was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: AVPR1A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: AVPR1A were set to 24924430
Phenotypes for gene: AVPR1A were set to Autism spectrum disorder MONDO:0005258
Review for gene: AVPR1A was set to RED
Added comment: DISPUTED by ClinGen:

The Arginine Vasopressin Receptor 1A (AVPR1A) was considered a candidate gene in autism spectrum disorder (ASD) based on reports focused on linkage intervals and animal models. Additionally, experimental evidence showed that AVPR1A is possibly involved in social behaviors, including affiliation and attachment (PMID: 24924430). However, these association studies were underpowered—sequencing more individuals may have identified variants of functional significance. In two studies, transmission disequilibrium between AVPR1A microsatellites and autism were found but most were not statistically significant (PMID: 12082568, 16520824). In another study, investigators screened AVPR1A exons in 125 independent autistic probands (PMID: 15098001). However, the study did not demonstrate a disease-causing variant in the coding sequence, and the authors noted that differences in AVPR1A at the amino-acid level are unlikely to confer genetic vulnerability to autism. Experimental evidence is available, but, in the absence of human genetic evidence, such data were not utilized in the scoring. In summary, there is no valid genetic evidence to support an association between AVPR1A and autism spectrum disorder.
Sources: Expert list
Mendeliome v1.1781 UFSP2 Zornitza Stark edited their review of gene: UFSP2: Added comment: PMID: 37214758:

Additional patient with spondyloepimetaphyseal dysplasia type Di Rocco:
- het missense Cys302Ser
- confirmed de novo in segregation analyses
- absent in gnomAD
- no functional studies on the missense.

Four AD missense reported in the literature so far are located in the C-term catalytic domain - 1x hip dysplasia, Beukes type and 3x spondyloepimetaphyseal dysplasia type Di Rocco.

The well reported AR missense (associated with neurodevelopmental anomalies and epilepsy) is located in the N-terminal domain possibly involved in substrate binding.; Changed publications: 33473208, 26428751, 28892125, 32755715, 37214758
Mendeliome v1.1778 KCNIP4 Ain Roesley gene: KCNIP4 was added
gene: KCNIP4 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KCNIP4 was set to Unknown
Publications for gene: KCNIP4 were set to 33826137
Phenotypes for gene: KCNIP4 were set to seizures; epilepsy
Review for gene: KCNIP4 was set to RED
gene: KCNIP4 was marked as current diagnostic
Added comment: single paper describing insertions of L1 retrotransposons in KCNIP4
samples were post-mortem of resected temporal cortex from individuals with idiopathic temporal lobe epilepsy

1x de novo insertion of L1 in KCNIP4 however ddPCR revealed that this did NOT alter KCNIP4 mRNA expression
Sources: Literature
Mendeliome v1.1763 DAGLA Zornitza Stark gene: DAGLA was added
gene: DAGLA was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DAGLA was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: DAGLA were set to 35737950
Phenotypes for gene: DAGLA were set to Neuroocular syndrome 2, paroxysmal type, MIM# 168885
Review for gene: DAGLA was set to GREEN
Added comment: 9 individuals from 8 families reported with daily paroxysmal spells characterized by eye deviation or nystagmus with abnormal head posturing apparent from birth or early infancy. The episodes tend to be triggered after sleeping, and most patients show improvement of the ocular symptoms over time. Affected individuals also have hypotonia, mild developmental delay, dysarthria, and gait ataxia; most have mildly impaired intellectual development. Seizures are not observed.
Sources: Literature
Mendeliome v1.1758 HOXD12 Sangavi Sivagnanasundram gene: HOXD12 was added
gene: HOXD12 was added to Mendeliome. Sources: Other
Mode of inheritance for gene: HOXD12 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: HOXD12 were set to 38663984
Phenotypes for gene: HOXD12 were set to Clubfoot (non-syndromic) MONDO:0007342
Mode of pathogenicity for gene: HOXD12 was set to Other
Review for gene: HOXD12 was set to GREEN
Added comment: Novel gene-disease association with non-syndromic clubfoot.

10 variants in HOXD12 have been reported in individuals with clubfoot (variants are predominantly missense variants however one rare deletion has been reported).

PMID: 38663984
Around 9 individuals from 4 unrelated families have been reported with clubfoot and the variants were shown to segregate.

N-terminal region and C-terminal homeobox domain of HOXD12 are known to be clusters for pathogenic variants related to clubfoot.
Loss of function variants are less likely to contribute to clubfoot pathogenesis therefore mechanism of disease is suggested as dominant negative but is not confirmed.
Sources: Other
Mendeliome v1.1758 PKHD1L1 Sangavi Sivagnanasundram gene: PKHD1L1 was added
gene: PKHD1L1 was added to Mendeliome. Sources: Other
Mode of inheritance for gene: PKHD1L1 was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: PKHD1L1 were set to non syndromic hearing loss (MONDO:0020678)
Review for gene: PKHD1L1 was set to GREEN
Added comment: At least 4 individuals from unrelated families with sensorineural hearing loss (SNHL) (2 of the reported probands were from consanguineous parents).
The individuals are either homozygous or compound heterozygous for mutations in PKHD1L1 (missense, frameshift and nonsense mutations have been reported).

In vitro functional assessment as well as a mini-gene assay of Gly605Arg was conducted. The mini-gene assay on Gly605Arg showed that exon skipping occurs resulting in an in-frame deletion of 48 aa. Both studies didn't use a positive control however loss of function or disruption to protein stability is the speculated mechanism of disease.
Sources: Other
Mendeliome v1.1758 RAB32 Bryony Thompson gene: RAB32 was added
gene: RAB32 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RAB32 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RAB32 were set to 38614108
Phenotypes for gene: RAB32 were set to Parkinson disease MONDO:0005180
Mode of pathogenicity for gene: RAB32 was set to Other
Review for gene: RAB32 was set to RED
Added comment: A single variant in RAB32 - c.213C>G p.(Ser71Arg) with a significant association with PD (odds ratio [OR] 13.17, 95% CI 2.15-87.23; p=0.0055, 6,043 PD cases and 62,549 controls). The variant cosegregated with autosomal dominant PD in 3 families (9 affected individuals), with incomplete penetrance. In vitro studies demonstrate that RAB32 Ser71Arg activates LRRK2 kinase. The variant is reported as a novel reduced penetrance PD risk factor. The 95% CI for the OR estimate are very wide. A confirmatory study is required for this variant.
Sources: Literature
Mendeliome v1.1732 PRMT9 Chirag Patel gene: PRMT9 was added
gene: PRMT9 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PRMT9 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PRMT9 were set to PMID: 38561334
Phenotypes for gene: PRMT9 were set to Neurodevelopmental disorder, MONDO:0100500
Review for gene: PRMT9 was set to RED
Added comment: A homozygous variant (G189R) in PRMT9 is reported based on large WGS study in 136 consanguineous families - unclear if only found in 1 family and no clinical information on case(s).

PMRTs (protein arginine methyltransferases) catalyse post translational modification via arginine methylation. Functional studies showed that the G189R variant abolishes PRMT9's methyltransferase activity - specifically at the R508 residue of SF3B2 RNA (exclusively methylated by PRMT9) - and leads to heavy PRMT9 ubiquitination, and abnormal splicing activity of SF3B2. Knock out mouse model showed PRMT9 loss in excitatory neurons leads to aberrant synapse development and impaired learning and memory.
Sources: Literature
Mendeliome v1.1727 SRPK3 Zornitza Stark gene: SRPK3 was added
gene: SRPK3 was added to Mendeliome. Sources: Literature
digenic tags were added to gene: SRPK3.
Mode of inheritance for gene: SRPK3 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: SRPK3 were set to 38429495
Phenotypes for gene: SRPK3 were set to Myopathy, MONDO:0005336, digenic SRPK3- and TTN-related
Review for gene: SRPK3 was set to GREEN
Added comment: 33 individuals reported with SRPK3 variants but myopathy only occurred when TTN variant also present (most truncating). Zebrafish model supports digenic model of inheritance.
Sources: Literature
Mendeliome v1.1725 OTULIN Zornitza Stark edited their review of gene: OTULIN: Added comment: Three individuals reported with de novo missense variants and auto inflammatory syndrome. Two had at the same variant, p.Cys129Ser. Experimental data supports dominant negative mechanism. Fourth individual with heterozygous variant in PMID 38129331 and severe fasciitis.; Changed publications: 27523608, 27559085, 35587511, 38630025, 38652464, 38129331
Mendeliome v1.1718 PACSIN3 Zornitza Stark gene: PACSIN3 was added
gene: PACSIN3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PACSIN3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PACSIN3 were set to 38637313
Phenotypes for gene: PACSIN3 were set to Myopathy, MONDO:0005336, PACSIN3-related
Review for gene: PACSIN3 was set to AMBER
Added comment: Two unrelated families with LoF variants, one homozygous. Muscle phenotype including raised CK. Supportive mouse model.
Sources: Literature
Mendeliome v1.1715 KIAA1024L Achchuthan Shanmugasundram gene: KIAA1024L was added
gene: KIAA1024L was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KIAA1024L was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: KIAA1024L were set to 35727972
Phenotypes for gene: KIAA1024L were set to Deafness, autosomal recessive 120, OMIM:620238
Review for gene: KIAA1024L was set to GREEN
Added comment: New gene name - MINAR2

PMID:35727972 reported 13 patients from four unrelated families with non-syndromic sensorineural hearing loss. Four of these patients had prelingual onset of severe to profound, progressive bilateral hearing loss. The other nine patients had congenital onset of severe to profound bilateral hearing loss, which was not progressive on one patient, while data was not available for the other.

Three different homozygous variants (c.144G > A/ p.Trp48Ter, c.412_419delCGGTTTTG/ p.Arg138Valfs*10 and c.393G > T/ p.Lys131Asn) were identified in MINAR2/ KIAA1024L gene in these patients.

There is some functional evidence available for the p.Lys131Asn variant. In addition, mice with loss of function of the Minar2 protein present with rapidly progressive sensorineural hearing loss.

This gene has also been associated with relevant phenotype in OMIM (MIM #620238).
Sources: Literature
Mendeliome v1.1698 CADM3 Zornitza Stark edited their review of gene: CADM3: Added comment: Two additional families reported with a different variant, de novo in one family.; Changed rating: GREEN; Changed publications: 38074074
Mendeliome v1.1696 SLC37A3 Achchuthan Shanmugasundram gene: SLC37A3 was added
gene: SLC37A3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SLC37A3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLC37A3 were set to 28041643; 35486108
Phenotypes for gene: SLC37A3 were set to retinitis pigmentosa, MONDO:0019200
Review for gene: SLC37A3 was set to GREEN
Added comment: Three unrelated cases reported with biallelic variants in SLC37A3 gene (One case in PMID:28041643 and two cases in PMID:35486108) and with autosomal recessive retinitis pigmentosa.
Sources: Literature
Mendeliome v1.1696 PTCRA Achchuthan Shanmugasundram gene: PTCRA was added
gene: PTCRA was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PTCRA was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PTCRA were set to 38422122
Phenotypes for gene: PTCRA were set to Autoimmunity, HP:0002960; lymphopenia, MONDO:0003783
Review for gene: PTCRA was set to GREEN
Added comment: PMID:38422122 reported the identification of 10 individuals from seven kindreds from four different ethnicities with biallelic PTCRA variants (homozygous in five kindreds and compound heterozygous in two kindreds).

Six of these 10 patients were clinically asymptomatic at their most recent evaluation, while other four patients displayed infection, lymphoproliferation, and/or autoimmunity with an onset during their teens or in adulthood. One of these patients died from SARS-CoV-2 pneumonia at the age of 24 years. Patient 9 had a small thymus on MRI at the age of 2 years, whereas P5 and P6 had no visible thymus at the ages of 13 and 8 years, respectively. Three of the nine patients with pLOF PTCRA variants tested were found to produce autoantibodies, several of which were associated with clinical manifestations. Anti-thyroid autoantibodies and/or clinically overt thyroiditis were found in three of the nine patients. P7, who suffered from recurrent herpes infections, had autoantibodies against type I interferons.

Two of those identified variants are hypomorphic and are associated with autoimmunity. In addition, there is extensive functional and epidemiological data available.
Sources: Literature
Mendeliome v1.1695 RTN2 Achchuthan Shanmugasundram changed review comment from: PMID:38527963 reported the identification of seven novel or ultra-rare homozygous loss-of-function RTN2 variants in 14 individuals from seven unrelated families with distal hereditary motor neuropathy.

All affected individuals exhibited weakness in the distal upper and lower limbs, lower limb spasticity, hyperreflexia, with an onset in the first decade of life. Nerve conduction studies revealed axonal motor neuropathy with neurogenic changes in the electromyography.

Characterisation of C. elegans RTN2 homolog loss-of-function variants demonstrated morphological and behavioural differences compared to the parental strain and treatment with an endoplasmic/sarcoplasmic reticulum Ca(2+) re-uptake inhibitor (2,5-di-tert-butylhydroquinone) rescued key phenotypic differences.

Biallelic variants in RTN2 gene have not yet been associated with any phenotypes in OMIM or Gene2Phenotype, while monoallelic variants have been associated with spastic paraplegia (MIM #604805) in OMIM.; to: PMID:38527963 reported the identification of seven novel or ultra-rare homozygous loss-of-function RTN2 variants in 14 individuals from seven unrelated families with distal hereditary motor neuropathy.

All affected individuals exhibited weakness in the distal upper and lower limbs, lower limb spasticity, hyperreflexia, with an onset in the first decade of life. Nerve conduction studies revealed axonal motor neuropathy with neurogenic changes in the electromyography.

Characterisation of C. elegans RTN2 homolog loss-of-function variants demonstrated morphological and behavioural differences compared to the parental strain, and treatment with an endoplasmic/sarcoplasmic reticulum Ca(2+) re-uptake inhibitor (2,5-di-tert-butylhydroquinone) rescued key phenotypic differences.

Biallelic variants in RTN2 gene have not yet been associated with any phenotypes in OMIM or Gene2Phenotype, while monoallelic variants have been associated with spastic paraplegia (MIM #604805) in OMIM.
Mendeliome v1.1695 RTN2 Achchuthan Shanmugasundram changed review comment from: PMID:38527963 reported the identification of seven novel or ultra-rare homozygous loss-of-function RTN2 variants in 14 individuals from seven unrelated families with distal hereditary motor neuropathy.

All affected individuals (seven males and seven females, aged 9-50 years) exhibited weakness in the distal upper and lower limbs, lower limb spasticity, hyperreflexia, with an onset in the first decade of life. Nerve conduction studies revealed axonal motor neuropathy with neurogenic changes in the electromyography.

Characterisation of C. elegans RTN2 homolog loss-of-function variants demonstrated morphological and behavioural differences compared to the parental strain and treatment with an endoplasmic/sarcoplasmic reticulum Ca(2+) re-uptake inhibitor (2,5-di-tert-butylhydroquinone) rescued key phenotypic differences.

Biallelic variants in RTN2 gene have not yet been associated with any phenotypes in OMIM or Gene2Phenotype, while monoallelic variants have been associated with spastic paraplegia (MIM #604805) in OMIM.; to: PMID:38527963 reported the identification of seven novel or ultra-rare homozygous loss-of-function RTN2 variants in 14 individuals from seven unrelated families with distal hereditary motor neuropathy.

All affected individuals exhibited weakness in the distal upper and lower limbs, lower limb spasticity, hyperreflexia, with an onset in the first decade of life. Nerve conduction studies revealed axonal motor neuropathy with neurogenic changes in the electromyography.

Characterisation of C. elegans RTN2 homolog loss-of-function variants demonstrated morphological and behavioural differences compared to the parental strain and treatment with an endoplasmic/sarcoplasmic reticulum Ca(2+) re-uptake inhibitor (2,5-di-tert-butylhydroquinone) rescued key phenotypic differences.

Biallelic variants in RTN2 gene have not yet been associated with any phenotypes in OMIM or Gene2Phenotype, while monoallelic variants have been associated with spastic paraplegia (MIM #604805) in OMIM.
Mendeliome v1.1680 BANF1 Zornitza Stark changed review comment from: Two Spanish families reported but likely founder effect. One additional family. Lipoatrophy reported.; to: Bi-allelic disease: Two Spanish families reported with progeria but likely founder effect. One additional family. Lipoatrophy reported.
Mendeliome v1.1680 BANF1 Zornitza Stark edited their review of gene: BANF1: Added comment: PMID 35982159: Single individual reported with a de novo variant, p.Ala87Thr, and a neurodevelopmental disorder.

PMID 36980188: Hereditary peripheral neuropathy, MONDO:0020127, BANF1-related; Changed publications: 32783369, 21549337, 35982159, 36980188; Changed phenotypes: Nestor-Guillermo progeria syndrome, MIM# 614008, Neurodevelopmental disorder, MONDO:0700092, BANF1-related, Hereditary peripheral neuropathy, MONDO:0020127, BANF1-related; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v1.1676 YKT6 Zornitza Stark gene: YKT6 was added
gene: YKT6 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: YKT6 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: YKT6 were set to 38522068
Phenotypes for gene: YKT6 were set to Syndromic disease, MONDO:0002254, YKT6-related
Review for gene: YKT6 was set to AMBER
Added comment: Two individuals homozygous for YKT6 [NM_006555.3:c.554A>G p.(Tyr185Cys)] exhibited normal prenatal course followed by failure to thrive, developmental delay and progressive liver disease. Haplotype analysis identified a shared homozygous region flanking the variant, suggesting a common ancestry. The third individual homozygous for YKT6 [NM_006555.3:c.191A>G p.(Tyr64Cys)] exhibited neurodevelopmental disorders and optic atrophy. Supportive functional data in Drosophila.

Amber rating due to homozygous missense variants and founder effect in two of the families.
Sources: Literature
Mendeliome v1.1668 GTF3C5 Bryony Thompson gene: GTF3C5 was added
gene: GTF3C5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GTF3C5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GTF3C5 were set to 38520561; 35503477
Phenotypes for gene: GTF3C5 were set to neurodevelopmental disorder MONDO:0700092, GTF3C5-related
Review for gene: GTF3C5 was set to GREEN
Added comment: 4 families/probands with syndromic ID. Loss of function is the expected
PMID: 38520561 - Biallelic variants identified (3 missense & 1 stopgain) in 4 individuals from 3 families presenting with multisystem developmental syndrome including the features: growth retardation, developmental delay, intellectual disability, dental anomalies, cerebellar malformations, delayed bone age, skeletal anomalies, and facial dysmorphism. Gene-disease relationship supported by: reduced protein expression in patient cells, yeast assays, and a zebrafish model
PMID: 35503477 - 1 proband with biallelic missense variants and hypomelanosis of Ito, seizures, growth retardation, abnormal brain MRI, developmental delay, and facial dysmorphism
Sources: Literature
Mendeliome v1.1660 TRPV5 Sangavi Sivagnanasundram changed review comment from: Not a well-established gene-disease association. Has only been reported in one consanguineous family.

PMID: 38528055
3 individuals from the same family affected with hypercalciuria.
Biallelic Met598Val variant was identified in the proband and his two affect sibs

Functional assay using WT and mutant plasmid vectors were transfected into HEK293T cells. The assay showed that the mutant vector had a non-functional TRPV5 channel as compared to the WT however no positive control was used.
Sources: Other; to: Not a well-established gene-disease association. Has only been reported in one consanguineous family.

PMID: 38528055
3 individuals from the same family affected with hypercalciuria.
Biallelic Met598Val variant was identified in the proband and his two affect sibs

Functional assay using WT and mutant plasmid vectors were transfected into HEK293T cells. The assay showed that the mutant vector had a non-functional TRPV5 channel as compared to the WT however no positive control was used.

PMID: 14679186
TRPV5 knockout mice model was used to assess whether the abolishment of TRPV5 led to a disruption in Ca2+ handling. The effects of the disruption in Ca2+ handling resulted in bone abnormalities in the mice and is likely the cause of idiopathic hypercalciuria.

Sources: Other
Mendeliome v1.1660 DOCK4 Sangavi Sivagnanasundram gene: DOCK4 was added
gene: DOCK4 was added to Mendeliome. Sources: Other
Mode of inheritance for gene: DOCK4 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: DOCK4 were set to PMID: 38526744
Phenotypes for gene: DOCK4 were set to DOCK4-related neurodevelopmental disorder (MONDO:0060490)
Review for gene: DOCK4 was set to GREEN
Added comment: 7 unrelated individuals reported with heterozygous variants (missense or null variants) in DOCK4. The individuals either had ID or DD between mild and moderate with brain abnormalities. Two of the individuals are reportedly compound heterozygous.

Functional assay neuro-2A Dock4 knockout cells by using the Alt-R CRISPR-Cas9 system utilizing two different guide RNAs (ko1 and ko2) and one nonspecific control guide RNA (C: control). The assay depicted the loss of function mechanism in the presence of either p.Arg853Leu and p.Asp946_Lys1966delinsValSer* (described as 945VS).
Sources: Other
Mendeliome v1.1657 DISP1 Sangavi Sivagnanasundram changed review comment from: Well-establised gene disease association with differing mechanism of disease depending on the type of causative variant.
Monoallelic truncating variants that resulted in haploinsufficiency in DISP1 led to mild HPE. However biallelic missense variants that results in a partial loss of function of DISP1 cause HPE as well.

PMID: 38529886
25 individuals from 20 unrelated families with a phenotype associated with mild holoprosencephaly (HPE).
A total of 23 different variants were identified in DISP1 (missense, frameshift and nonsense).
14 heterozygous individuals , 5 compound heterozygous individuals, 6 homozygous individuals (5 of the individuals were from 3 unrelated consanguineous families).

HPE phenotype was also seen prenatally as one of the reported monoallelic individuals was a fetus at 20+6 GW prior to passing due to MTP.

; to: Gene disease association with differing mechanism of disease depending on the type of causative variant.
Monoallelic truncating variants that resulted in haploinsufficiency in DISP1 led to mild HPE. However biallelic missense variants that results in a partial loss of function of DISP1 cause HPE as well.

PMID: 38529886
25 individuals from 20 unrelated families with a phenotype associated with mild holoprosencephaly (HPE).
A total of 23 different variants were identified in DISP1 (missense, frameshift and nonsense).
14 heterozygous individuals , 5 compound heterozygous individuals, 6 homozygous individuals (5 of the individuals were from 3 unrelated consanguineous families).

HPE phenotype was also seen prenatally as one of the reported monoallelic individuals was a fetus at 20+6 GW prior to passing due to MTP.

Mendeliome v1.1657 DISP1 Sangavi Sivagnanasundram changed review comment from: Well-establised gene disease association with differing mechanism of disease depending on the type of causative variant.

PMID: 38529886
25 individuals from 20 unrelated families with a phenotype associated with mild holoprosencephaly (HPE).
A total of 23 different variants were identified in DISP1 (missense, frameshift and nonsense).

Monoallelic truncating variants that resulted in haploinsufficiency in DISP1 led to mild HPE. However biallelic missense variants that results in a partial loss of function f DISP1 cause HPE as well.; to: Well-establised gene disease association with differing mechanism of disease depending on the type of causative variant.
Monoallelic truncating variants that resulted in haploinsufficiency in DISP1 led to mild HPE. However biallelic missense variants that results in a partial loss of function of DISP1 cause HPE as well.

PMID: 38529886
25 individuals from 20 unrelated families with a phenotype associated with mild holoprosencephaly (HPE).
A total of 23 different variants were identified in DISP1 (missense, frameshift and nonsense).
14 heterozygous individuals , 5 compound heterozygous individuals, 6 homozygous individuals (5 of the individuals were from 3 unrelated consanguineous families).

HPE phenotype was also seen prenatally as one of the reported monoallelic individuals was a fetus at 20+6 GW prior to passing due to MTP.

Mendeliome v1.1653 MAP3K20 Zornitza Stark Phenotypes for gene: MAP3K20 were changed from Centronuclear myopathy 6 with fiber-type disproportion MIM#617760; Split-foot malformation with mesoaxial polydactyly MIM#616890 to Syndromic disease, MONDO:0002254, MAP3K20-related; Centronuclear myopathy 6 with fiber-type disproportion MIM#617760; Split-foot malformation with mesoaxial polydactyly MIM#616890
Mendeliome v1.1644 CAPNS1 Zornitza Stark gene: CAPNS1 was added
gene: CAPNS1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: CAPNS1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CAPNS1 were set to 38230350
Phenotypes for gene: CAPNS1 were set to Hereditary pulmonary arterial hypertension MONDO:0017148, CAPNS1-related
Review for gene: CAPNS1 was set to AMBER
Added comment: Three individuals from two families reported with homozygous splice site variants.
Sources: Expert list
Mendeliome v1.1640 USP27X Zornitza Stark edited their review of gene: USP27X: Added comment: Ten additional individuals and further experimental data reported.; Changed rating: GREEN; Changed publications: 25644381, 38182161; Changed phenotypes: Intellectual disability, X-linked 105, MIM#300984
Mendeliome v1.1638 TCN1 Bryony Thompson gene: TCN1 was added
gene: TCN1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TCN1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TCN1 were set to 29764838; 19686235
Phenotypes for gene: TCN1 were set to transcobalamin I deficiency MONDO:0008659
Review for gene: TCN1 was set to AMBER
Added comment: Unclear if TC1 deficiency is associated with a clinical phenotype and only found 2 families with genetic findings. 1 confirmed chet (2 truncating variants) with severe TC 1 deficiency (depression and anxiety only reported symptoms, had sickle cell trait) & another family with 2 siblings that are presumed homozygous for a truncating variant (no plasma or serum TC 1 levels but no DNA available for genetic testing) which was found heterozygous in multiple first-degree relatives. Unclear if there is a clinical phenotype. Heterozygous individuals displayed mildly low or low-normal TC 1 serum levels. Also, 4 homozygotes were identified in a study of a loss-of-function variant associated with lower vitamin B12 concentration in African Americans but there was limited ability to assess the clinical impact of the recessive disease
Sources: Literature
Mendeliome v1.1634 FEM1B Zornitza Stark edited their review of gene: FEM1B: Added comment: Five individuals reported now with same recurrent missense variant, NM_015322.5:c.377G>A NP_056137.1:p.(Arg126Gln). Affected individuals shared a severe neurodevelopmental disorder with behavioral phenotypes and a variable set of malformations, including brain anomalies, clubfeet, skeletal abnormalities, and facial dysmorphism. Overexpression of the the FEM1BR126Q variant but not FEM1B wild-type protein, during mouse brain development, resulted in delayed neuronal migration of the target cells.; Changed rating: GREEN; Changed publications: 31036916, 38465576; Changed phenotypes: Syndromic disease MONDO:0002254, FEM1B-related; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v1.1634 TRPV5 Sangavi Sivagnanasundram gene: TRPV5 was added
gene: TRPV5 was added to Mendeliome. Sources: Other
Mode of inheritance for gene: TRPV5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TRPV5 were set to PMID: 38528055
Phenotypes for gene: TRPV5 were set to TRPV5-related hypercalciuria (MONDO:0009550)
Review for gene: TRPV5 was set to RED
Added comment: Not a well-established gene-disease association. Has only been reported in one consanguineous family.

PMID: 38528055
3 individuals from the same family affected with hypercalciuria.
Biallelic Met598Val variant was identified in the proband and his two affect sibs

Functional assay using WT and mutant plasmid vectors were transfected into HEK293T cells. The assay showed that the mutant vector had a non-functional TRPV5 channel as compared to the WT however no positive control was used.
Sources: Other
Mendeliome v1.1616 FHL2 Zornitza Stark gene: FHL2 was added
gene: FHL2 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: FHL2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: FHL2 were set to 36854411; 25358972
Phenotypes for gene: FHL2 were set to Cardiomyopathy, MONDO:0004994, FHL2-related
Review for gene: FHL2 was set to AMBER
Added comment: Emerging evidence that variants in this gene may be associated with cardiomyopathy.

Reports of HCM and DCM.

c.391C>T (p.Arg131Cys) may be recurrent in early-onset DCM.
Sources: Expert Review
Mendeliome v1.1596 CIAO1 Paul De Fazio changed review comment from: PMID:38196629 (note pre-print) describes 4 unrelated patients with core features of progressive muscle weakness, respiratory insufficiency, joint hyperlaxity, ankle tightness, calf pseudohypertrophy, elevated CK, and larning disabilities/difficulties. 2 patients presented with increased iron deposition in the brain. Age of recognition of myopathic symptoms varied from early childhood to adolescence.

PMID: 38411040 reports 2 unrelated patients. Patient 1 was born with microcephaly and borderline hypertonia, and died at 18 months of respiratory failure from bronchiolitis. Patient 2 presented with failure to thrive, a hyperkinetic movement disorder, and autism before deteriorating in late teens with muscle weakness, recurrent pneuomonia with respiratory insufficiency, and eventually death due to multi-organ failure with carnificating pneumonia, septic cardiomyopathy, and intracranial hemorrhages. Immune deficiency was ruled out.

All variants reported were homozygous or compound heterozygous missense variants, with the exception of one large in-frame deletion of exon 7. Cell line studies showed the variants resulted in reduced protein stability and downstream cellular defects which could be rescued by wild-type CIAO1.
Sources: Literature; to: PMID:38196629 (note pre-print) describes 4 unrelated patients with core features of progressive muscle weakness, respiratory insufficiency, joint hyperlaxity, ankle tightness, calf pseudohypertrophy, elevated CK, and larning disabilities/difficulties. 2 patients presented with increased iron deposition in the brain. Age of recognition of myopathic symptoms varied from early childhood to adolescence. Muscle biopsy showed variation in fiber size and an increase in internalized nuclei, as well as scattered degenerating/regenerating fibers and a mild to minimal increase in endomysial fibrosis. Electron microscopy revealed morphologically abnormal mitochondria.

PMID: 38411040 reports 2 unrelated patients. Patient 1 was born with microcephaly and borderline hypertonia, and died at 18 months of respiratory failure from bronchiolitis. Patient 2 presented with failure to thrive, a hyperkinetic movement disorder, and autism before deteriorating in late teens with muscle weakness, recurrent pneuomonia with respiratory insufficiency, and eventually death due to multi-organ failure with carnificating pneumonia, septic cardiomyopathy, and intracranial hemorrhages. Immune deficiency was ruled out.

All variants reported were homozygous or compound heterozygous missense variants, with the exception of one large in-frame deletion of exon 7. Cell line studies showed the variants resulted in reduced protein stability and downstream cellular defects which could be rescued by wild-type CIAO1.
Mendeliome v1.1596 MMS19 Paul De Fazio gene: MMS19 was added
gene: MMS19 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MMS19 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MMS19 were set to 38411040
Phenotypes for gene: MMS19 were set to Neuromuscular disease, MMS19-related (MONDO:0019056)
Penetrance for gene: MMS19 were set to unknown
Review for gene: MMS19 was set to RED
gene: MMS19 was marked as current diagnostic
Added comment: Single patient reported with postnatal microcephaly, bilateral cataracts, failure to thrive, progressive spastic tetraparesis, scoliosis, myoclonic epilepsy and precocious puberty. Cerebral MRI at age 4 years showed pontocerebellar atrophy and white matter abnormalities. Patient died age 13 after recurrent respiratory tract infections. A homozygous in-frame deletion p.(Glu213del) was identified. Cell line studies supported pathogenicity of the variant. A zebrafish knockout model also showed a detrimental effect of Mms19 deficincy.
Sources: Literature
Mendeliome v1.1596 CIAO1 Paul De Fazio gene: CIAO1 was added
gene: CIAO1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CIAO1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CIAO1 were set to 38411040; 38196629
Phenotypes for gene: CIAO1 were set to Neuromuscular disease, CIAO1-related (MONDO:0019056)
Penetrance for gene: CIAO1 were set to unknown
Review for gene: CIAO1 was set to GREEN
gene: CIAO1 was marked as current diagnostic
Added comment: PMID:38196629 (note pre-print) describes 4 unrelated patients with core features of progressive muscle weakness, respiratory insufficiency, joint hyperlaxity, ankle tightness, calf pseudohypertrophy, elevated CK, and larning disabilities/difficulties. 2 patients presented with increased iron deposition in the brain. Age of recognition of myopathic symptoms varied from early childhood to adolescence.

PMID: 38411040 reports 2 unrelated patients. Patient 1 was born with microcephaly and borderline hypertonia, and died at 18 months of respiratory failure from bronchiolitis. Patient 2 presented with failure to thrive, a hyperkinetic movement disorder, and autism before deteriorating in late teens with muscle weakness, recurrent pneuomonia with respiratory insufficiency, and eventually death due to multi-organ failure with carnificating pneumonia, septic cardiomyopathy, and intracranial hemorrhages. Immune deficiency was ruled out.

All variants reported were homozygous or compound heterozygous missense variants, with the exception of one large in-frame deletion of exon 7. Cell line studies showed the variants resulted in reduced protein stability and downstream cellular defects which could be rescued by wild-type CIAO1.
Sources: Literature
Mendeliome v1.1589 UBAP1L Ee Ming Wong changed review comment from: - Twelve unrelated families with Hungary, the United States, Israel, Tunisia and the Netherlands with members presenting with autosomal recessive rod-cone or cone-rod dystrophy
- Reported variants included splice, nonsense, frameshift and in-frame del variants
- Age of disease onset was very variable, with some patients experiencing first symptoms during their fourth decade of life or later.
Sources: Literature; to: - Twelve unrelated families with Hungary, the United States, Israel, Tunisia and the Netherlands with members presenting with autosomal recessive rod-cone or cone-rod dystrophy
- Reported variants included splice, nonsense, frameshift and in-frame del variants
- Age of disease onset was very variable, with some patients experiencing first symptoms during their fourth decade of life or later.
Sources: Literature
Mendeliome v1.1588 UBAP1L Ee Ming Wong gene: UBAP1L was added
gene: UBAP1L was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: UBAP1L was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: UBAP1L were set to PMID: 38293907; 38420906
Phenotypes for gene: UBAP1L were set to Cone-rod dystrophy (MONDO:0015993), UBAP1L-related
Review for gene: UBAP1L was set to GREEN
gene: UBAP1L was marked as current diagnostic
Added comment: - Twelve unrelated families with Hungary, the United States, Israel, Tunisia and the Netherlands with members presenting with autosomal recessive rod-cone or cone-rod dystrophy
- Reported variants included splice, nonsense, frameshift and in-frame del variants
- Age of disease onset was very variable, with some patients experiencing first symptoms during their fourth decade of life or later.
Sources: Literature
Mendeliome v1.1587 CELSR3 Crystle Lee gene: CELSR3 was added
gene: CELSR3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CELSR3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CELSR3 were set to PMID: 38429302
Phenotypes for gene: CELSR3 were set to Neurodevelopmental disorder (MONDO#0700092), CELSR3-related
Review for gene: CELSR3 was set to GREEN
Added comment: PMID: 38429302:12 affected individuals from 11 families reported with bi-allelic variants. Phenotype ranged from CNS anomalies (7/12), CNS and CAKUT (3/12) and CAKUT only (2/12). Only missense variants reported and 1 inframe variant. Functional studies done in zebrafish demonstrate similar structural anomalies of the developing pronephros and neuronal abnormalities to affected individuals

PMID: 34951123: 5 het missense variants reported in patients with febrile seizures (FS)/epilepsy. Arg3141Gln present in gnomAD (7 hets). No functional studies. Summarised as potentially associated with febrile seizures (FS)/epilepsy
Sources: Literature
Mendeliome v1.1584 SNUPN Suliman Khan gene: SNUPN was added
gene: SNUPN was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SNUPN was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SNUPN were set to PMID: 38413582; PMID: 38366623
Phenotypes for gene: SNUPN were set to autosomal recessive limb-girdle muscular dystrophy MONDO:0015152
Review for gene: SNUPN was set to GREEN
Added comment: PMID: 38413582: reported 18 children from 15 unrelated families with muscular phenotypes, including proximal upper limb weakness, distal upper and lower limb weakness, and myopathy (EMG) with elevated serum creatinine kinase level. Exome sequencing revealed nine hypomorphic biallelic variants in the SNUPN gene, predominantly clustered in the last coding exon. Functional studies showed that mutant SPN1 failed to oligomerize leading to cytoplasmic aggregation in patients’ primary fibroblasts.

PMID: 38366623: reported five individuals from two unrelated families with limb-girdle muscular dystrophy.
Sources: Literature
Mendeliome v1.1583 TOGARAM2 Naomi Baker gene: TOGARAM2 was added
gene: TOGARAM2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TOGARAM2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TOGARAM2 were set to PMID:38374469
Phenotypes for gene: TOGARAM2 were set to Nonsyndromic genetic hearing loss (MONDO:0019497), TOGARAM2-related
Review for gene: TOGARAM2 was set to RED
Added comment: Paper reports one individual with bilateral profound hearing loss with a homozygous TOGARAM2 nonsense variant and demonstrated reduced mRNA expression in transfected cells.
Sources: Literature
Mendeliome v1.1581 TUBA4A Sarah Pantaleo gene: TUBA4A was added
gene: TUBA4A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TUBA4A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: TUBA4A were set to PMID: 38413182
Phenotypes for gene: TUBA4A were set to Congenital myopathy MONDO:0019952
Review for gene: TUBA4A was set to AMBER
Added comment: One novel TUBA4A variant in two unrelated Chinese patients with sporadic congenital myopathy.

Identified candidate genes using laser capture micro dissection, proteomics, WES, clinical data, myopathological changes, electrophysiological exams and thigh muscle MRIs.

The variant is de novo in both patients, c.679C>T, p.(Leu227Phe). The prominent myopathological changes in both patients were muscle fibres with focal myofibrillar disorganisation and rimmed vacuoles. Immunofluorescence showed ubiqution-positive TUBA4A protein aggregates in the muscle fibres with rimmed vacuoles. Overexpression of Leu227Phe resulted in cytoplasmic aggregates which colocalised with ubiquitin in cellular model.

Patient 1 is 14yo and had delayed motor development milestones since infancy. Myopathic face, high-arched palate, waddling gait, winged scapula and muscle weakness in four limbs with lower extremities and proximal muscle more severely affected. Follow up at 14yo showed slight improvement in motor function compared with 3yo.

Patient 2 is 6yo and presented with motor retardation since birth. At 3yo, presented with mild ptosis and ophthalmoparesis, high-arched palate and muscle weakness involving both proximal and distal in all limbs.

No likely pathogenic variants in 116 other protein-encoding genes. Variants confirmed by Sanger sequencing and absent from gnomAD. ACMG predicts likely pathogenic classification.
Sources: Literature
Mendeliome v1.1580 NIT1 Paul De Fazio gene: NIT1 was added
gene: NIT1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NIT1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NIT1 were set to 38430071
Phenotypes for gene: NIT1 were set to Cerebrovascular disorder, NIT1-related (MONDO:0011057)
Penetrance for gene: NIT1 were set to unknown
gene: NIT1 was marked as current diagnostic
Added comment: 5 unrelated families reported with recessively inherited cerebral small vessel disease had compound hetereozygous or homozygous variants in NIT1. 1 family (3 siblings) had p.(Ala68*) in trans with p.(Arg243Trp), the remaining 4 families (1 individual each) were all homozygous for p.(Arg243Trp).

Patients presented in mid-adulthood with progressive movement disorders (e.g. dystonia, chorea, bradykinesia and tremor, gait disturbance, dysarthria) and had abnormal brain MRI findings (honeycomb appearance of the basal ganglia-thalamus complex, due to numerous strongly dilated PVS). 3 patients had non-lobar intracerebral hemorrhage. Slowly progressive cognitive decline was also a key feature.

Metabolic analysis in urine confirmed loss of NIT1 enzymatic function.

Note p.(Arg243Trp) has 1 homozygote in gnomAD v4, but permitted due to later presentation in reported patients.
Sources: Literature
Mendeliome v1.1578 RREB1 Zornitza Stark edited their review of gene: RREB1: Added comment: PMID 38332451: de novo LoF variant in an individual with phenotype consistent with the previous reports.; Changed rating: AMBER; Changed publications: 32938917, 38332451; Changed phenotypes: Rasopathy, MONDO:0021060, RREB1-related
Mendeliome v1.1576 ZFX Zornitza Stark gene: ZFX was added
gene: ZFX was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ZFX was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: ZFX were set to 26350204; 26740508; 38325380
Phenotypes for gene: ZFX were set to Neurodevelopmental disorder, MONDO:0700092, ZFX-related
Review for gene: ZFX was set to GREEN
Added comment: A single ZFX variant has been associated with a neurodevelopmental disorder, that has a Rett syndrome-like phenotype disorder, in a 14 year old male. The ZFX variant was allelic with another X-linked variant in SHROOM4. These variants were inherited from the mother, who had random X inactivation pattern (PMID: 26740508).
PMID: 38325380 reports 11 ZFX variants in 18 subjects from 16 unrelated families (14 males and 4 females) with an X-linked neurodevelopmental disorder with recurrent facial gestalt. Seven variants were truncating and the remaining were missense variants within the Zinc finger array. In the pedigree of family 6 (figure 3, PMID: 38325380), it was apparent that there were female carriers of the ZFX variant (GRCh38 chrX: 24229396A>G, c.2438A>G, p.Tyr774Cys) with hyperparathyroidism and two affected males and one affected female, with the neurodevelopmental disorder. It appeared that skewed X-inactivation in the female carriers was responsible for the different phenotypic features. The association between ZFX variants and a novel neurodevelopmental disorder, was further supported by functional studies showing altered transcriptional activity in missense variants and altered behavior in a zebrafish loss-of-function model.
Sources: Literature
Mendeliome v1.1552 HMBS Zornitza Stark Phenotypes for gene: HMBS were changed from Porphyria, acute intermittent, MIM#176000; Porphyria, acute intermittent, non-erythroid variant, MIM#176000 to Porphyria, acute intermittent, MIM#176000; Porphyria, acute intermittent, non-erythroid variant, MIM#176000; Encephalopathy, porphyria-related MIM#620704; Leukoencephalopathy, porphyria-related, MIM#620711
Mendeliome v1.1551 HMBS Zornitza Stark edited their review of gene: HMBS: Changed phenotypes: Porphyria, acute intermittent, MIM#176000, Porphyria, acute intermittent, non-erythroid variant, MIM#176000, Encephalopathy, porphyria-related MIM#620704, Leukoencephalopathy, porphyria-related, MIM#620711
Mendeliome v1.1547 TMTC2 Zornitza Stark edited their review of gene: TMTC2: Added comment: Single family reported with bi-allelic variants.

Mouse model.; Changed publications: 29671961, 27311106, 37943620, 30188326; Changed phenotypes: Deafness, autosomal recessive 122, MIM# 620714; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v1.1545 CARD8 Zornitza Stark edited their review of gene: CARD8: Added comment: Additional individual reported with JRA and IBD.; Changed rating: AMBER; Changed publications: 29408806, 37724393
Mendeliome v1.1543 ONECUT1 Bryony Thompson gene: ONECUT1 was added
gene: ONECUT1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ONECUT1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ONECUT1 were set to 37639628; 34663987; 10825208
Phenotypes for gene: ONECUT1 were set to Neonatal diabetes mellitus MONDO:0016391
Review for gene: ONECUT1 was set to GREEN
Added comment: 3 unrelated neonatal diabetes cases with homozygous variants & supporting iPSC/mouse models
PMID: 37639628 - UK biobank study of ONECUT1 variants in neonatal diabetes mellitus (NDM), MODY, and type 2 diabetes. Identified a case with syndromic NDM with a homozygous frameshift (p.Met289Argfs*8). Rare heterozygous variants were not enriched in individuals with suspected MODY (n=484). Heterozygous null variants were significantly associated with type 2 diabetes (p=0.006) as a potential susceptibility gene.

PMID: 34663987 - 2 consanguineous families with homozygous variants (Glu231Ter or Glu231Asp) in cases with syndromic ND. Directed differentiation of human pluripotent stem cells revealed that loss of ONECUT1 impairs pancreatic progenitor formation.

PMID: 10825208 - Hnf6 (old gene name) null mice have diabetes
Sources: Literature
Mendeliome v1.1538 SIRT1 Achchuthan Shanmugasundram gene: SIRT1 was added
gene: SIRT1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SIRT1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SIRT1 were set to 23473037
Phenotypes for gene: SIRT1 were set to autoimmune disease, MONDO:0007179
Review for gene: SIRT1 was set to RED
Added comment: PMID:23473037 reported the identification of a missense SIRT1 variant (p.Leu107Pro) in five members of a single family and all five of them had autoimmune disorder, four had type I diabetes and one had ulcerative colitis.
Sources: Literature
Mendeliome v1.1538 SCGN Achchuthan Shanmugasundram gene: SCGN was added
gene: SCGN was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SCGN was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SCGN were set to 31663849
Phenotypes for gene: SCGN were set to ulcerative colitis, MONDO:0005101
Review for gene: SCGN was set to AMBER
Added comment: PMID:31663849 reported three siblings with homozygous missense SCGN variant and with early-onset ulcerative colitis. Functional studies demonstrated that SCGN variant identified impacted the localisation of the SNARE complex partner, SNAP25, leading to impaired hormone release. In addition, SCGN knockout mouse model recapitulated impaired hormone release and susceptibility to DSS-induced colitis.
Sources: Literature
Mendeliome v1.1538 HSPA1L Achchuthan Shanmugasundram gene: HSPA1L was added
gene: HSPA1L was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: HSPA1L was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: HSPA1L were set to 28126021
Phenotypes for gene: HSPA1L were set to inflammatory bowel disease, MONDO:0005265
Review for gene: HSPA1L was set to GREEN
Added comment: PMID:28126021 reported the identification of a heterozygous de novo variant (p.Ser277Leu) in HSPA1L in a patient with inflammatory bowel disease. In addition, five additional rare HSPA1L variants (p.Gly77Ser, p.Leu172del, p.Thr267Ile, p.Ala268Thr, p.Glu558Asp) were identified in six patients from a cohort of 136 IBD patients with WES data.

Functional studies showed that all six HSPA1L variant proteins showed decreased chaperone activity in vitro. Moreover, three variants demonstrated dominant negative effects on HSPA1L and HSPA1A protein activity.
Sources: Literature
Mendeliome v1.1537 PRDM8 Zornitza Stark gene: PRDM8 was added
gene: PRDM8 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PRDM8 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PRDM8 were set to 2296154; 35034233
Phenotypes for gene: PRDM8 were set to Epilepsy, progressive myoclonic, 10 MIM#616640
Review for gene: PRDM8 was set to RED
Added comment: - PMID:22961547, 3 individuals from one family, all with myoclonic epilepsy, all had the Phe261Leu variant. This variant is absent from gnomAD V4.
- PMID: 35034233, Two individuals from one family, no clinical seizures but presented with myoclonus and abnormal EEG (generalised epileptiform charges), these individuals had the Ala230Gly missense change, which has currently been reported as a VUS.
Sources: Expert list
Mendeliome v1.1534 PLXNC1 Zornitza Stark gene: PLXNC1 was added
gene: PLXNC1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PLXNC1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PLXNC1 were set to 36808730
Phenotypes for gene: PLXNC1 were set to Malformations of cortical development
Review for gene: PLXNC1 was set to RED
Added comment: This gene was included in the genes4epilepsy resource (PMID:36808730) and was reported as being associated with the clinical phenotype "malformations of cortical development". There are no current PubMed articles linking this gene with epilepsy however
Sources: Expert list
Mendeliome v1.1532 CASZ1 Zornitza Stark gene: CASZ1 was added
gene: CASZ1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: CASZ1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CASZ1 were set to 28099117; 36293425; 31268246
Phenotypes for gene: CASZ1 were set to Dilated cardiomyopathy, MONDO:0005021, CASZ1-related; left ventricular non compaction
Review for gene: CASZ1 was set to GREEN
Added comment: Rare cause of paeditric onsent DCM. at least 3 papers report LoF variants, 2 of which each report a novel de novo frameshift variant in children diagnosed with DCM less than 1 and who died at 11 mths ( PMID: 31268246; Guo 2019) and 22mths (PMID: 36293425, Orlova 2022). Another paper (PMID: 28099117, Qiu 2017) reported a nonsense variant that segregated with DCM in a family in an AD fashion (full text not available).
Sources: Expert list
Mendeliome v1.1525 DLG5 Zornitza Stark changed review comment from: Four unrelated families reported, supportive Xenopus animal model data.
Sources: Literature; to: Four unrelated families reported, supportive Xenopus animal model data. Cystic kidneys, nephrotic syndrome, hydrocephalus, limb abnormalities, congenital heart disease and craniofacial malformations.
Sources: Literature
Mendeliome v1.1513 SP9 Suliman Khan commented on gene: SP9: PMID: 38288683: reported 5 unrelated patients with de novo heterozygous variants (missense and PTV) in SP9 gene. In silico and in vitro studies suggested a novel form of interneuronopathy with variable severity depending on the presence of loss or gain of function variants. Patients with loss-of-function variants had ID, ASD, and epilepsy, whereas missense variants in the second C2H2 binding domain result in hypomorphic and neomorphic DNA binding functions that cause severe epileptic encephalopathy. The author suggested a novel form of interneuronopathy with variable severity depending on the presence of loss or gain of function variants.
Mendeliome v1.1509 PRDM6 Elena Savva gene: PRDM6 was added
gene: PRDM6 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PRDM6 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: PRDM6 were set to 38071433; 27716515; 27181681
Phenotypes for gene: PRDM6 were set to Patent ductus arteriosus 3 MIM#617039
Review for gene: PRDM6 was set to GREEN
Added comment: Gene is established for patent ductus arteriosus. Only missense reported but supported by functional studies suggesting LOF.

PMID: 38071433 - Two families (3 affected, 6 affected) with patent ductus arteriosus with/without additional coarctation of the aorta. Family 1 had a missense, family 2 had a PTC - both regarded as VUSs

Additional papers PMID: 27716515;27181681 describe nonsyndromic patent ductus arteriosus for the first time
Sources: Literature
Mendeliome v1.1506 WDR44 Andrew Fennell gene: WDR44 was added
gene: WDR44 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: WDR44 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: WDR44 were set to PMID: 38191484
Phenotypes for gene: WDR44 were set to Ciliopathy, MONDO:0005308, WDR44-related
Review for gene: WDR44 was set to GREEN
Added comment: 11 male patients with 6 missense and 1 nonsense variant in WDR44 displaying a wide range of cognitive impairment and variable congenital anomalies associated with primary cilium dysfunction. All patients had learning difficulties with 8 labelled as intellectually disabled (mild-moderate). Other clinical features included anomalies of craniofacial, musculoskeletal, brain, renal and cardiac development.
WDR44 is a negative regulator of ciliogenesis. Increased binding is hypothesised to underlie the pathogenicity of WDR44 variants identified in this cohort. Functional data supported impaired ciliogenesis initiation in patient fibroblasts and a zebrafish model. A zebrafish model recapitulated the human phenotype when morphants expressed WDR44 L668S, D669N, S764F, G782C, H839R, and R733* variants. Of note, D648G or N840S did not recapitulate the phenotype in the zebrafish model.
The studies supported a GoF mechanism, but the authors could not rule out that LoF of WDR44 contributes to the ciliopathy-like phenotype observed, because protein expression data was only available for a limited number of patients.
Sources: Literature
Mendeliome v1.1497 RBMX Zornitza Stark edited their review of gene: RBMX: Added comment: PMID 37277488: In-frame deletion reported in a large multiplex Swedish family; Changed publications: 25256757, 34260915, 37277488; Changed phenotypes: Intellectual developmental disorder, syndromic 11, Shashi type, MIM#300238, Gustavson syndrome, MIM# 309555
Mendeliome v1.1479 COQ4 Zornitza Stark edited their review of gene: COQ4: Added comment: PMIDs 36047608;38014483;38013626: more than 10 families reported with more limited spastic ataxia phenotype, onset from infancy to adulthood.; Changed publications: 25658047, 26185144, 33704555, 36047608, 38014483, 38013626; Changed phenotypes: Coenzyme Q10 deficiency, primary, 7, MIM# 616276, Spastic ataxia 10, autosomal recessive, MIM# 620666
Mendeliome v1.1459 SLC13A3 Daniel Flanagan gene: SLC13A3 was added
gene: SLC13A3 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: SLC13A3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLC13A3 were set to https://www.neurology.org/doi/full/10.1212/NXG.0000000000200101 (No PMID)
Phenotypes for gene: SLC13A3 were set to Leukoencephalopathy, acute reversible, with increased urinary alpha-ketoglutarate (MIM# 618384)
Review for gene: SLC13A3 was set to GREEN
Added comment: Seven patients reported with biallelic SLC13A3 variants, causing acute reversible leukoencephalopathy and α-ketoglutarate accumulation. Patients presented with acute neurological deterioration after a febrile illness. 5/7 with ataxia, 4/7 had seizures, 1/7 developmental delay.
Sources: Expert list
Mendeliome v1.1457 SOX8 Paul De Fazio gene: SOX8 was added
gene: SOX8 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SOX8 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SOX8 were set to https://www.neurology.org/doi/full/10.1212/NXG.0000000000200088
Phenotypes for gene: SOX8 were set to Neurodevelopmental disorder (MONDO:0700092), SOX8-related
Review for gene: SOX8 was set to RED
gene: SOX8 was marked as current diagnostic
Added comment: Proband presented to genetics clinic at 27 years of age with BMI -3.4SD, height -2.7SD, head circumference -1.8SD. She had mild intellectual delay and clinical features of a congenital, nonprogressive myopathy with moderate proximal and distal weakness. X-rays showed skeletal dysplasia, including cervical thoracic scoliosis and lumbar scoliosis. She was reported as having had weakness at birth with poor suck, micrognathia, hypotonia, and talipes. She was documented to have significant motor delay as a child. MRI of the brain demonstrated large posterior fossa CSF spaces.

Biallelic SOX8 variants biallelic (NM_014587.3:c.422+5G>C; c.583dup p.(His195ProfsTer11)) were identified by WGS. The +5 variant was shown to affect splicing, while the frameshift variant resulted in production of low-level truncated protein (not NMD predicted). Functional studies on patient fibroblasts showed misregulation of downstream SOX8 targets.
Sources: Literature
Mendeliome v1.1455 RAPGEF2 Belinda Chong gene: RAPGEF2 was added
gene: RAPGEF2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RAPGEF2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RAPGEF2 were set to 37021642; 30351492; 29507423
Phenotypes for gene: RAPGEF2 were set to ?Epilepsy, familial adult myoclonic, 7 MIM# 618075
Review for gene: RAPGEF2 was set to RED
Added comment: Heterozygous 5-bp repeat expansion (TTTCA(n)) in intron 14 of RAPGEF2 gene. Two individuals previously reported (PMID: 30351492 and 29507423) with seizures
Sources: Literature
Mendeliome v1.1449 PRICKLE1 Zornitza Stark edited their review of gene: PRICKLE1: Added comment: Note all ClinVar entries for this gene are VOUS/LB/B. The variants reported in bi-allelic cases are almost all missense without further supportive data.; Changed rating: AMBER
Mendeliome v1.1446 GPT2 Zornitza Stark edited their review of gene: GPT2: Added comment: 10 families reported.; Changed publications: 27601654, 25758935, 31471722
Mendeliome v1.1443 POLD1 Zornitza Stark edited their review of gene: POLD1: Added comment: Association with combined immunodeficiency: Three individuals from two generations of a consanguineous family reported, some functional data. Another unrelated individual reported in PMID 31449058, more functional data. Third family identified in Melbourne, two affected sibs, compound het variants and combined immunodeficiency.; Changed phenotypes: Mandibular hypoplasia, deafness, progeroid features, and lipodystrophy syndrome, MIM# 615381, MONDO:0014157, Combined immunodeficiency, MONDO:0015131, POLD1-related; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v1.1442 LCK Zornitza Stark edited their review of gene: LCK: Added comment: Additional cases:
PMID 38100037: Description of a second unrelated patient with novel biallelic missense LCK c.1393T>C, p.C465R variant in a patient from a consanguineous Syrian family with profound T-cell immune deficiency characterized by complete LCK protein expression deficiency and ensuing proximal TCR signaling-and CD4 and CD8-co-receptor-mediated functional and phenotypical defects.

PMID: 27087313 reported 3 siblings of a consanguineous family presenting with recurrent pneumonia and severe viral skin disease leading to malignant transformation. The patients had an intronic LCK c.188-2A>G splice site variant resulting in skipping of exon 3 and mRNA decay. Clinical data alongside with CD4+ T-cell lymphocytopenia suggested a hypomorphic LCK deficiency.; Changed rating: GREEN; Changed publications: 22985903, 1579166, 11021796, 27087313, 38100037
Mendeliome v1.1433 CAPRIN1 Zornitza Stark edited their review of gene: CAPRIN1: Added comment: Two individuals reported with the same de novo c.1535C > T (p.Pro512Leu) variant and a progressive course.; Changed rating: AMBER; Changed publications: 36136249
Mendeliome v1.1431 MANF Zornitza Stark gene: MANF was added
gene: MANF was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: MANF was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MANF were set to 26077850; 33500254; 34815294
Phenotypes for gene: MANF were set to Diabetes, deafness, developmental delay, and short stature syndrome, MIM# 620651
Review for gene: MANF was set to AMBER
Added comment: Two individuals reported with homozygous variants. Mouse model recapitulates deafness phenotype.
Sources: Expert Review
Mendeliome v1.1428 GABRA4 Zornitza Stark gene: GABRA4 was added
gene: GABRA4 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GABRA4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: GABRA4 were set to 35152403
Phenotypes for gene: GABRA4 were set to Developmental and epileptic encephalopathy MONDO:0100062, GABRA4-related
Review for gene: GABRA4 was set to RED
Added comment: Single individual with de novo missense variant reported, supportive functional data.
Sources: Literature
Mendeliome v1.1411 FUK Zornitza Stark edited their review of gene: FUK: Added comment: PMID: 35718084: Reporting on 3 unrelated patients from literature and 1 new patient. All reported to have mild-severe intellectual disability, developmental delay and brain abnormalities, and 3/4 present with seizures. Phenotypes are childhood onset. Homozygous and compound heterozygous variants have been reported.

PMID: 36426412: Reporting on new 1 patient (homozygous missense). Not affected by intellectual disability, developmental delay, or brain abnormalities. Presents with seizures. Loss of function suggested due to depletion of the FUK gene expression.; Changed rating: GREEN; Changed publications: 30503518, 35718084, 36426412
Mendeliome v1.1408 CEP192 Chern Lim gene: CEP192 was added
gene: CEP192 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CEP192 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: CEP192 were set to 37981762
Phenotypes for gene: CEP192 were set to microcephaly, short stature, limb-extremity dysplasia, and reduced testicular size
Review for gene: CEP192 was set to RED
gene: CEP192 was marked as current diagnostic
Added comment: PMID: 37981762:
- In one family, chet missense p.His638Tyr and p.Asn1917Ser segregated with microcephaly, short stature, limb-extremity dysplasia, and reduced testicular size in two affected siblings. Both sibs also fulfilled dx for mosaic variegated aneuploidy (MVA) syndrome and have tetraploidy.
- A lower but substantial proportion of MVA/tetraploidy cells was observed in II-1, II-2, and II-4 (who are het for one of the variants).

- In the same family, each variants in heterozygous state segregated with infertility and/or reduced testicular size in the proband’s father and maternal uncle.
- Variant screening of CEP192 coding regions performed for 1264 unrelated males with idiopathic infertility.
- Asn1917Ser was also detected in three additional unrelated infertile males with reduced testicular volumes.
- Two other missense and two synonymous variants were repeatedly detected in infertile males.

- qPCR showed CEP192 expression was decreased in individuals with c.1912C>T His638Tyr, mini-gene assay showed that c.1912C>T His638Tyr led to the skipping of exon 14, predicted to result in NMD.
- Epithelial cells cultured in vitro from patients with biallelic variants showed the number of cells arrested during the prophase increased because of the failure of spindle formation.

- Embyronic mouse lethality in Cep192-/- (hom for His638Tyr), Cep192M/M (hom for Asn1917Ser) and Cep192-/M (chet).
- Embryos of Cep192M/M mice had significant increase of MVA and tetraploidy cells.
- Number of apoptotic cells increased in Cep192M/M embryos compared with that of Cep192+/+, similar result in Cep192-/- embryos.
- Male mice with Cep192 heterozygous variants replicated infertility

Conclusions:
- Association of this gene with autosomal recessive disease has not been established.
- Association of monoallelic variants in this gene with infertility is not well established:
- Two variants with some supportive evidence from mouse model.
Sources: Literature
Mendeliome v1.1408 SV2A Karina Sandoval changed review comment from: Monoallelic variants cause epilepsy. Biallelic variant in this 5yo (Hom p.Arg383Gln) reported to cause severe phenotype of drug-resistant epileptic encephalopathy with microcephaly, DD, movement disorder and growth retardation. Consanguineous.
This paper references 5 other families with both AR & AD
Family #1 – p.Arg383Gln, AR, 2 affected in family, parents healthy carriers
Family #2 – p.Arg570Cys, AD, 2 affected, inherited from affected mother (in gnomAD v2 1 het, absent from gnomAD v3)
Family #3 – p.Gly660Arg, AD, de novo
Family #4 – p.Gly660Arg, AD, segregated in 11 family members
Family #5 (this study) – p.Arg289Ter, AR, parents and 2 sibs asymptomatic carriers
Sources: Literature; to: Monoallelic variants cause epilepsy. Biallelic variant in this 5yo with p.Arg289Ter and another 5yo from another paper with homozygous p.Arg383Gln, reported to cause severe phenotype of drug-resistant epileptic encephalopathy with microcephaly, DD, movement disorder and growth retardation.
This paper references 5 other families with both AR & AD
Family #1 – p.Arg383Gln, AR, 2 affected in family, parents healthy carriers
Family #2 – p.Arg570Cys, AD, 2 affected, inherited from affected mother (in gnomAD v2 1 het, absent from gnomAD v3)
Family #3 – p.Gly660Arg, AD, de novo
Family #4 – p.Gly660Arg, AD, segregated in 11 family members
Family #5 (this study) – p.Arg289Ter, AR, parents and 2 sibs asymptomatic carriers
Sources: Literature
Mendeliome v1.1408 SV2A Karina Sandoval changed review comment from: Monoallelic variants cause epilepsy. Biallelic variant in this 5yo (Hom p.Arg383Gln) reported to cause severe phenotype of drug-resistant epileptic encephalopathy with microcephaly, DD, movement disorder and growth retardation. Consanguineous.
This paper references 5 other families with both AR & AD
Family #1 – p.Arg383Gln, AR, 2 affected in family, parents healthy carriers
Family #2 – p.Arg570Cys, AD, 2 affected, inherited from affected mother
Family #3 – p.Gly660Arg, AD, de novo
Family #4 – p.Gly660Arg, AD, segregated in 11 family members
Family #5 (this study) – p.Arg289Ter, AR, parents and 2 sibs asymptomatic carriers
Sources: Literature; to: Monoallelic variants cause epilepsy. Biallelic variant in this 5yo (Hom p.Arg383Gln) reported to cause severe phenotype of drug-resistant epileptic encephalopathy with microcephaly, DD, movement disorder and growth retardation. Consanguineous.
This paper references 5 other families with both AR & AD
Family #1 – p.Arg383Gln, AR, 2 affected in family, parents healthy carriers
Family #2 – p.Arg570Cys, AD, 2 affected, inherited from affected mother (in gnomAD v2 1 het, absent from gnomAD v3)
Family #3 – p.Gly660Arg, AD, de novo
Family #4 – p.Gly660Arg, AD, segregated in 11 family members
Family #5 (this study) – p.Arg289Ter, AR, parents and 2 sibs asymptomatic carriers
Sources: Literature
Mendeliome v1.1405 SV2A Karina Sandoval gene: SV2A was added
gene: SV2A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SV2A was set to BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
Publications for gene: SV2A were set to PMID: 37985816
Phenotypes for gene: SV2A were set to Epilepsy, MONDO:0005027
Review for gene: SV2A was set to GREEN
Added comment: Monoallelic variants cause epilepsy. Biallelic variant in this 5yo (Hom p.Arg383Gln) reported to cause severe phenotype of drug-resistant epileptic encephalopathy with microcephaly, DD, movement disorder and growth retardation. Consanguineous.
This paper references 5 other families with both AR & AD
Family #1 – p.Arg383Gln, AR, 2 affected in family, parents healthy carriers
Family #2 – p.Arg570Cys, AD, 2 affected, inherited from affected mother
Family #3 – p.Gly660Arg, AD, de novo
Family #4 – p.Gly660Arg, AD, segregated in 11 family members
Family #5 (this study) – p.Arg289Ter, AR, parents and 2 sibs asymptomatic carriers
Sources: Literature
Mendeliome v1.1401 SEL1L Sarah Pantaleo gene: SEL1L was added
gene: SEL1L was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SEL1L was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SEL1L were set to PMID: 37943610; PMID: 37943617
Phenotypes for gene: SEL1L were set to Neurodevelopmental disorder, MONDO:0700092, SEL1L-related
Penetrance for gene: SEL1L were set to Complete
Added comment: Wang paper PMID: 37943610

SEL1L protein is involved in the SEL1L-HRD1 endoplasmic reticulum (ER)-associated degradation.

Report two biallelic missense variants in SEL1L in six children from three independent families presenting with developmental delay, intellectual disability, microcephaly, facial dysmorphisms, hypotonia and/or ataxia (termed ERAD-associated neurodevelopment disorder with onset in infancy (ENDI). The variants were hypomorphic and impaired ERAD function.

Identified by WES. Parents heterozygous and asymptomatic. P.(Gly585Asp) in Patient 1, p.(Met528Arg) in Patients 2 and 3 (siblings).

All variants cause substrate accumulation. The extent of substrate accumulation in knockin cells was modest compared to those in knockout cells, pointing to a hypomorphic nature.

They also had a variant in HRD1.



Weis paper PMID: 37943617

Third variant p.(Cys141Tyr), biallelic, causing premature death in five patients from a consanguineous family with early-onset neurodevelopmental disorders and agammaglobulinaemia due to severe SEL1L-HRD1 ERAD dysfunction.

This variant appears to have a more severe outcome, exhibiting B cell depletion and agammaglobulinaemia, causing the most severe dysfunction among all of the variants described by this group so far. They postulate that functionality of SEL1L-HRD1 ERAD is inversely correlated with disease severity in humans.

Their symptoms were dev delay, neurological disorder and agammaglobulinaemia in childhood. Along with severe axial hypotonia, short stature and microcephaly.

“Not a complete loss-of-function variant”.
Sources: Literature
Mendeliome v1.1380 DOT1L Zornitza Stark gene: DOT1L was added
gene: DOT1L was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DOT1L was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: DOT1L were set to 37827158
Phenotypes for gene: DOT1L were set to Neurodevelopmental disorder, MONDO:0700092, DOT1L-related
Mode of pathogenicity for gene: DOT1L was set to Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments
Review for gene: DOT1L was set to GREEN
Added comment: Nine individuals reported with seven de novo missense variants.

All had DD/ID and variable patterns of associated congenital anomalies.

Variants demonstrated to be GoF and lead to increased H3K79 methylation levels in flies and human cells.
Sources: Literature
Mendeliome v1.1378 UNC119 Zornitza Stark changed review comment from: Immunodeficiency 13: Single case reported with the missense Gly22Val. The allele frequency of this variant is >2% in the African/African American subpopulation in gnomAD v2.1, including 6 homozygotes. RED for this association.

Borderline Green for association with cone-rod dystrophy.; to: Immunodeficiency 13: Single case reported with the missense Gly22Val. The allele frequency of this variant is >2% in the African/African American subpopulation in gnomAD v2.1, including 6 homozygotes. RED for this association.

Cone-rod dystrophy: one of the reported variants is missense with no other supporting evidence.
Mendeliome v1.1372 SLCO1B3 Zornitza Stark edited their review of gene: SLCO1B3: Added comment: Five additional individuals reported.; Changed rating: GREEN; Changed publications: 33860121, 36964102
Mendeliome v1.1370 SLCO1B1 Zornitza Stark edited their review of gene: SLCO1B1: Added comment: Five additional individuals reported.; Changed publications: 33860121, 33860121
Mendeliome v1.1368 PLS3 Zornitza Stark Phenotypes for gene: PLS3 were changed from Bone mineral density QTL18, osteoporosis - MIM#300910; congenital diaphragmatic hernia MONDO:0005711, PLS3-related to Bone mineral density QTL18, osteoporosis - MIM#300910; Diaphragmatic hernia 5, X-linked, MIM# 306950
Mendeliome v1.1367 PLS3 Zornitza Stark edited their review of gene: PLS3: Changed phenotypes: Bone mineral density QTL18, osteoporosis - MIM#300910, Diaphragmatic hernia 5, X-linked, MIM# 306950
Mendeliome v1.1364 MCAT Zornitza Stark edited their review of gene: MCAT: Added comment: Second individual reported in PMID 33918393; Changed publications: 33918393
Mendeliome v1.1363 MDM4 Bryony Thompson gene: MDM4 was added
gene: MDM4 was added to Mendeliome. Sources: Other
Mode of inheritance for gene: MDM4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MDM4 were set to 32300648; 33104793
Phenotypes for gene: MDM4 were set to bone marrow failure syndrome MONDO:0000159, MDM4-related
Review for gene: MDM4 was set to AMBER
Added comment: A single family was reported to segregate a missense variant (p.Thr454Met) with features suggestive of dyskeratosis congenita, e.g., bone marrow hypocellularity, short telomeres, tongue squamous cell carcinoma, and acute myeloid leukemia. A mouse model of p.Thr454Met showed increased p53 activity, decreased telomere length, and bone marrow failure.
Sources: Other
Mendeliome v1.1357 FYB1 Zornitza Stark gene: FYB1 was added
gene: FYB1 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: FYB1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FYB1 were set to 25516138; 25876182
Phenotypes for gene: FYB1 were set to Thrombocytopenia 3, MIM# 273900
Review for gene: FYB1 was set to GREEN
Added comment: Two families with LoF variants and segregation reported in the literature. Aware of two additional cases through clinical testing (Prevention Genetics).

Good functional evidence, including mouse models.

Moderate by ClinGen, though note score was in 'Strong' range and downgraded due to two families in the literature only.
Sources: Expert Review
Mendeliome v1.1351 FMNL2 Achchuthan Shanmugasundram gene: FMNL2 was added
gene: FMNL2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FMNL2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: FMNL2 were set to 34043722
Phenotypes for gene: FMNL2 were set to inflammatory bowel disease, MONDO:0005265
Mode of pathogenicity for gene: FMNL2 was set to Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments
Review for gene: FMNL2 was set to AMBER
Added comment: A patient was reported with a de novo heterozygous FMNL2 variant (p.Leu136Pro) and with severe very early onset inflammatory bowel disease (IBD). The functional characterisation of this variant showed that FMNL2 L136P protein displayed subcellular mislocalisation and deregulated protein autoinhibition indicating gain-of-function mechanism (PMID:34043722).
Sources: Literature
Mendeliome v1.1340 CCDC66 Anna Ritchie gene: CCDC66 was added
gene: CCDC66 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CCDC66 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CCDC66 were set to PMID: 37852749
Review for gene: CCDC66 was set to RED
Added comment: Nonsense variant (c.172C>T, p.Q58X) segregating in family with 5 affected members with high myopia (HM). Additionally, one family member with the variant displayed no symptoms, hinting at possible incomplete penetrance. Six other rare variants were identified in 200 sporadic high myopia patients that could potentially be linked to HM. A deficiency in CCDC66 might disrupt cell proliferation by influencing the mitotic process during retinal growth, leading to HM.
Sources: Literature
Mendeliome v1.1335 HEPHL1 Naomi Baker gene: HEPHL1 was added
gene: HEPHL1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: HEPHL1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: HEPHL1 were set to PMID: 31125343; 31293895
Phenotypes for gene: HEPHL1 were set to Abnormal hair, joint laxity, and developmental delay (MIM#261990)
Review for gene: HEPHL1 was set to RED
Added comment: PMID: 31125343 - Single patient reported with biallelic variants (missense and splice) that presented with abnormal hair and early cognitive delays. Authors also created a knockout mouse, with homozygotes having short, curled whiskers while heterozygotes did not have this phenotype.

PMID: 31293895 - Report of curly whiskers (cw) mouse model that has a spontaneous variant (frame shifting single base insertion) in Hephl1.
Sources: Literature
Mendeliome v1.1325 HMBS Zornitza Stark edited their review of gene: HMBS: Added comment: Rare families with bi-allelic disease reported.; Changed mode of inheritance: BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
Mendeliome v1.1319 PTPN4 Bryony Thompson changed review comment from: >3 unrelated probands and supporting mouse model
PMID: 17953619 - knockout mouse model has impaired motor learning and cerebellar synaptic plasticity
PMID: 25424712 - twins with a de novo whole gene deletion and a Rett-like neurodevelopmental disorder
PMID: 30238967 - mosaic de novo variant (p.Leu72Ser) identified in a child with developmental delay, autistic features, hypotonia, increased immunoglobulin E and dental problems. Also supporting mouse assays demonstrating loss of protein expression in dendritic spines
DOI: https://doi.org/10.1016/j.xhgg.2021.100033 - missense and truncating variants in six unrelated individuals with varying degrees of intellectual disability or developmental delay. 5 were able to undergo segregation analysis and found to be de novo.
Sources: Literature; to: >3 unrelated probands and supporting mouse model
PMID: 17953619 - knockout mouse model has impaired motor learning and cerebellar synaptic plasticity
PMID: 25424712 - twins with a de novo whole gene deletion and a Rett-like neurodevelopmental disorder
PMID: 30238967 - mosaic de novo variant (p.Leu72Ser) identified in a child with developmental delay, autistic features, hypotonia, increased immunoglobulin E and dental problems. Also supporting mouse assays demonstrating loss of protein expression in dendritic spines
PMID: 34527963 - missense and truncating variants in six unrelated individuals with varying degrees of intellectual disability or developmental delay. 5 were able to undergo segregation analysis and found to be de novo.
Sources: Literature
Mendeliome v1.1296 IRF1 Zornitza Stark edited their review of gene: IRF1: Added comment: PMID 36736301: Two unrelated children with recurrent early-onset life-threatening mycobacterial diseases due to multiple mycobacteria (BCG, M. avium). Homozygous LoF vairiants with extensive supporting functional data.; Changed rating: GREEN; Changed publications: 36736301; Changed phenotypes: Inherited susceptibility to mycobacterial disease, MONDO:0019146, IRF1-related; Changed mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v1.1293 IRF4 Zornitza Stark edited their review of gene: IRF4: Added comment: PMID 36662884: Seven individuals with profound CID from six kindreds of diverse ethnic origins (Fig. 1A). All affected individuals suffered with early onset (<1 year of age) recurrent sinopulmonary infections, with the opportunistic pathogen Pneumocystis jirovecii causing pneumonia in most individuals. p.T95R variant found in all patients. Extensive functional data including knockout mouse model. The heterozygous IRF4T95R variant found in multiple unrelated families caused a fully penetrant, severe very early-onset immunodeficiency characterized by greatly enhanced susceptibility to opportunistic pathogens such as P. jirovecii and weakly pathogenic mycobacteria.; Changed rating: GREEN; Changed publications: 29537367, 36662884; Changed phenotypes: Combined immunodeficiency, MONDO:0015131, IRF4-related; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v1.1289 CR2 Zornitza Stark edited their review of gene: CR2: Added comment: PMID:28499783 reported two siblings from consanguineous parents, both with a homozygous frameshift variant in CR2 and with recurrent respiratory infections and hypogammaglobulinaemia.; Changed rating: GREEN; Changed publications: 22035880, 26325596, 28499783
Mendeliome v1.1287 HMOX1 Zornitza Stark edited their review of gene: HMOX1: Added comment: PMID:33066778 provides a third case in support of promoting HMOX1 to green rating. This third case is a boy born to nonconsanguineous parents who presented with early onset asplenia, recurrent infections, and associated flares with bone marrow histiocyte activation with worsening interstitial lung disease and joint pain. This boy harboured compound heterozygous variants (p.L89Sfs*24 and p.Ala88Profs*51).; Changed rating: GREEN; Changed publications: 21088618, 9884342, 20844238, 33066778
Mendeliome v1.1286 HYOU1 Zornitza Stark changed review comment from: PMID:35549617 reported another case with homozgyous variant (p.Arg486Cys) and anemia, thrombocytopenia and severe panleukopenia and immunodeficiency.; to: PMID:35549617 reported another case with homozgyous variant (p.Arg486Cys) and anaemia, thrombocytopenia and severe panleukopenia and immunodeficiency.
Mendeliome v1.1286 HYOU1 Zornitza Stark edited their review of gene: HYOU1: Added comment: PMID:35549617 reported another case with homozgyous variant (p.Arg486Cys) and anemia, thrombocytopenia and severe panleukopenia and immunodeficiency.; Changed rating: GREEN; Changed publications: 27913302, 35822684, 35549617
Mendeliome v1.1283 MCM9 Natalie Tan changed review comment from: Emerging association in individuals with biallelic variants of a combined phenotype of primary ovarian insufficiency and a Lynch-like syndrome/early-onset colorectal cancer (PMID: 26806154, 34556653). Monoallelic carriers have also been reported with a Lynch-like syndrome (32841224). Association of primary ovarian insufficiency with other malignancies is less clear (32613604, 34556653). See PMID 37378315 for review of literature to April 2023.; to: Emerging association in individuals with biallelic variants of a combined phenotype of primary ovarian insufficiency and a Lynch-like syndrome/early-onset colorectal cancer (PMID: 26806154, 34556653). Monoallelic carriers have also been reported with a Lynch-like syndrome (32841224). Association of primary ovarian insufficiency with other malignancies is less clear (32613604, 34556653). See PMID 37378315 for review of literature to April 2023.
Mendeliome v1.1267 SRP68 Zornitza Stark gene: SRP68 was added
gene: SRP68 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: SRP68 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SRP68 were set to 32273475
Phenotypes for gene: SRP68 were set to Neutropenia, severe congenital, 10, autosomal recessive, MIM# 620534
Review for gene: SRP68 was set to AMBER
Added comment: Single individual reported with bi-allelic LoF variants and presenting with infantile-onset severe neutropenia and recurrent infections. Multiple lines of functional evidence provided.
Sources: Expert list
Mendeliome v1.1266 PLS3 Zornitza Stark Phenotypes for gene: PLS3 were changed from Bone mineral density QTL18, osteoporosis - MIM#300910 to Bone mineral density QTL18, osteoporosis - MIM#300910; congenital diaphragmatic hernia MONDO:0005711, PLS3-related
Mendeliome v1.1263 PLS3 Zornitza Stark edited their review of gene: PLS3: Added comment: PMID 37751738: 8 unrelated families with affected males with an X-linked condition characterised by diaphragm defects, variable anterior body-wall anomalies, and/or facial dysmorphism. All were missense variants. A mouse knock in model of a variant identified in one of the CDH-affected families, c.1497G>C (p.Trp499Cys), shows partial perinatal lethality and recapitulates the key findings of the human phenotype, including diaphragm and abdominal-wall defects. Gain-of-function is a suggested mechanism.; Changed publications: 32655496, 25209159, 29736964, 29884797, 28777485, 24088043, 37751738; Changed phenotypes: Bone mineral density QTL18, osteoporosis - MIM#300910, congenital diaphragmatic hernia MONDO:0005711, PLS3-related; Changed mode of inheritance: X-LINKED: hemizygous mutation in males, biallelic mutations in females
Mendeliome v1.1251 GPRASP1 Paul De Fazio gene: GPRASP1 was added
gene: GPRASP1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GPRASP1 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: GPRASP1 were set to 37787182
Phenotypes for gene: GPRASP1 were set to Arteriovenous hemangioma/malformation, GPRASP1-related, MONDO:0001256
Penetrance for gene: GPRASP1 were set to unknown
Review for gene: GPRASP1 was set to AMBER
gene: GPRASP1 was marked as current diagnostic
Added comment: Two hemizygous germline missense variants, p.Arg1167Trp and p.Trp553Cys, were identified in three male patients presenting with spinal AVM, Cobb syndrome, or scalp AVM. The variants were inherited from unaffected heterozygous mothers. Note that p.Arg1167Trp has hemizygous (>70) and homozygous individuals reported in gnomAD.

The variants were found to result in LoF in endothelial cells. Endothelial Gprasp1 knockout mice suffered a high probability of cerebral hemorrhage, AVMs, and exhibited vascular anomalies in multiple organs.
Sources: Literature
Mendeliome v1.1229 CASP4 Zornitza Stark gene: CASP4 was added
gene: CASP4 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: CASP4 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CASP4 were set to 37647624
Phenotypes for gene: CASP4 were set to Hereditary susceptibility to infection, MONDO:0015979, CASP4-related; Susceptibility to meliodiosis
Review for gene: CASP4 was set to RED
Added comment: Single patient with severe disease secondary to B. pseudomallei requiring ECMO. Adjunctive IFN-γ administration as replacement for its failed induction by IL-18 promptly led to clearance of B. pseudomallei and subsequent weaning of support. Novel homozygous missense mutation in CASP4, at exon 7 c.1030C > T. Peripheral blood mononuclear cells (PBMC) of the patient and her parents showed reduced IFN-γ production, notably to IL-12 stimulation, and decreased IL-18 in response to LPS and increased IL-1B. Cloned cells show impacts on CASP4 activation and pyroptosis.
Sources: Expert Review
Mendeliome v1.1196 ASTN2 Zornitza Stark edited their review of gene: ASTN2: Added comment: Rare CNVs also reported.; Changed publications: 28940097, 34412080
Mendeliome v1.1168 KLK11 Zornitza Stark gene: KLK11 was added
gene: KLK11 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KLK11 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: KLK11 were set to 36689511; 37212630
Phenotypes for gene: KLK11 were set to Ichthyosis with erythrokeratoderma, MIM# 620507
Review for gene: KLK11 was set to GREEN
Added comment: Four families reported: one multiplex with variant segregating with disease in 4 affected and 4 unaffected individuals. Three additional families with de novo variants.
Sources: Literature
Mendeliome v1.1164 MAP1B Zornitza Stark edited their review of gene: MAP1B: Added comment: At least 3 families reported with isolated deafness and mono-allelic variants.; Changed phenotypes: Intellectual disability, seizures, PVNH, dysmorphic features, Periventricular nodular heterotopia 9, MIM# 618918, Deafness, autosomal dominant 83, MIM# 619808
Mendeliome v1.1158 DBR1 Zornitza Stark edited their review of gene: DBR1: Added comment: PMID: 37656279:
- A homozygous missense as a founder recessive DBR1 variant in four consanguineous families.
- Total of 7 affected children. WES done for one proband from each family.
- Consistent features include prematurity, severe intrauterine growth deficiency, congenital ichthyosis-like presentation (collodion membrane, severe skin peeling and xerosis), and death before the first year of life.
- RNA and protein studies using fibroblasts derived from a patient are supportive of pathogenicity: RNA-seq, rt-qPCR and western blotting, showing marked reduction of DBR1 level and intronic RNA lariat accumulation in the patient sample.
- Haplotype analysis revealed that the four families all share a haplotype extending at least 2.27 Mb around the c.200A>G p.(Tyr67Cys) DBR1 founder variant.
- Authors proposed this is a novel DBR1-related developmental disorder that is distinct from DBR1-related encephalitis susceptibility, and highlighted the apparent lack of correlation with the degree of DBR1 deficiency.; Changed publications: 29474921, 37656279; Changed phenotypes: {Encephalitis, acute, infection (viral)-induced, susceptibility to, 11}, MIM# 619441, Viral infections of the brainstem, Ichthyosis (MONDO#0019269), DBR1-related
Mendeliome v1.1149 PPP1R3F Andrew Fennell changed review comment from: Sources: Literature; to: 13 unrelated hemizygous individuals reported with functional evidence
Sources: Literature
Mendeliome v1.1142 C3 Ain Roesley edited their review of gene: C3: Added comment: Multiple individuals reported with mono-allelic variants and aHUS. At least one report of biallelic variants.; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v1.1140 SOX11 Zornitza Stark edited their review of gene: SOX11: Added comment: Over 40 additional individuals reported, e.g. PMID 35341651. The phenotype that has emerged over time is distinct from patients with mutations in ARID1B (614556) and Coffin-Siris syndrome-1 (135900). Patients with IDDMOH tend to be microcephalic and have ocular motor apraxia, abnormal eye morphology, or hypogonadotropic hypogonadism.; Changed publications: 29459093, 24886874, 33086258, 33785884, 35642566, 35341651
Mendeliome v1.1137 PTCD3 Zornitza Stark edited their review of gene: PTCD3: Added comment: Three additional families reported.; Changed rating: GREEN; Changed publications: 30607703, 19427859, 36450274
Mendeliome v1.1135 MRM2 Zornitza Stark edited their review of gene: MRM2: Added comment: Two additional families reported.; Changed rating: GREEN; Changed publications: 28973171, 36002240; Changed phenotypes: Mitochondrial DNA depletion syndrome 17, MIM# 618567
Mendeliome v1.1133 COX5A Zornitza Stark edited their review of gene: COX5A: Added comment: Second family reported, albeit hmz missense.; Changed rating: AMBER; Changed publications: 35246835, 28247525
Mendeliome v1.1125 THPO Zornitza Stark edited their review of gene: THPO: Added comment: 5 families reported with bi-allelic variants and thrombocytopenia with progression to pancytopenia, aplastic anemia, and bone marrow failure.; Changed publications: 9425899, 10583217, 32150607, 28466964, 24085763, 28559357, 29191945, 36226497; Changed phenotypes: Thrombocythemia 1, MIM# 187950, Thrombocytopenia 9, MIM# 620478, Amegakaryocytic thrombocytopenia, congenital, 2, MIM# 620481; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v1.1125 NEUROG1 Achchuthan Shanmugasundram gene: NEUROG1 was added
gene: NEUROG1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NEUROG1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NEUROG1 were set to 23419067; 26077850; 33439489; 36647078
Phenotypes for gene: NEUROG1 were set to Cranial dysinnervation disorder, congenital, with absent corneal reflex and developmental delay, OMIM:620469
Review for gene: NEUROG1 was set to GREEN
Added comment: There are four unrelated cases reported with global developmental delay/ intellectual disability. Hence, this gene can be added with green rating in the intellectual disability panel.

PMID:23419067 - A homozygous micro deletion of NEUROG1 was identified in a six year-old boy presenting with profound sensorineural deafness, balance disorder, severe disorder of oral motor function, and mild global developmental delay. His IQ was normal.

PMID:26077850 - A homozygous NEUROG1 variant (p.Arg116Leu) was identified in a 12 year-old boy presented with syndromic corneal opacity, mild intellectual disability and absent corneal reflex.

PMID:33439489 - A homozygous loss-of-function variant (p.Glu68Ter) was identified in a 12 year-old boy presenting with hypotonia, global developmental delay, sensorineural hearing loss, and keratoconjunctivitis due to lack of corneal reflex. This patient had a global IQ of 62 at the age of ten.

PMID:36647078 - A female proband was identified with a novel homozygous truncating frameshift variant (p.Thr78ProfsTer122 and was reported with profound global developmental delay, autism spectrum disorder, hearing loss, corneal opacity and no eye blinking. Her sister also had a similar, but less severe phenotype and also harboured the same variant at homozygous state.

This gene has been associated with relevant phenotypes in OMIM (MIM #620469), but not in Gene2Phenotype.
Sources: Literature
Mendeliome v1.1125 STAT5B Zornitza Stark changed review comment from: Both bi-allelic and mono allelic (GoF) inheritance reported. AD GoF phenotype: increased IgE, growth failure, eczema but no immune defects compared to AR phenotype (modestly decreased T cells, reduced Tregs and function, hypergammaglobulinaemia, increased IgE).; to: Both bi-allelic and mono allelic (GoF) inheritance reported. AD GoF phenotype: increased IgE, growth failure, eczema but no immune defects compared to AR phenotype (modestly decreased T cells, reduced Tregs and function, hypergammaglobulinaemia, increased IgE).

Somatic variants also reported.
Mendeliome v1.1124 PPOX Zornitza Stark Phenotypes for gene: PPOX were changed from Porphyria variegata , MIM#176200 to Porphyria variegata , MIM#176200; Variegate porphyria, childhood-onset, MIM# 620483
Mendeliome v1.1121 PPOX Zornitza Stark edited their review of gene: PPOX: Added comment: Bi-allelic variants cause childhood onset disease.; Changed publications: 12357337, 32247286, 23324528, 27982422, 9811936, 11286631, 33159949; Changed phenotypes: Porphyria variegata , MIM#176200, Variegate porphyria, childhood-onset, MIM# 620483; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v1.1119 THPO Zornitza Stark edited their review of gene: THPO: Added comment: Thrombocytopenia: 5 unrelated families reported.; Changed publications: 9425899, 10583217, 32150607, 28466964; Changed phenotypes: Thrombocythemia 1, MIM# 187950, Thrombocytopenia 9, MIM# 620478
Mendeliome v1.1117 APOL1 Zornitza Stark edited their review of gene: APOL1: Added comment: Assigned Definitive gene-disease validity by the ClinGen Glomerulopathy GCEP - Classification - 09/28/2021
Increased risk of kidney and glomerular diseases in persons carrying two of the risk alleles in this gene: G1/G1, G2/G2 and compound heterozygous G1/G2.
PMID: 20647424 - first study to identify G1 & G2 alleles associated with risk of renal disease. Comparing participants with zero or 1 risk allele of APOL1 to participants with 2 risk alleles provided an odds ratio for FSGS of 10.5 (CI, 6.0-18.4). This analysis supported a completely recessive pattern of inheritance.
PMID: 25993319 - only G1 and G2 confer renal risk, and other common and rare APOL1 missense variants, including the archaic G3 haplotype, do not contribute to sporadic FSGS and HIVAN
rs73885319 (G1) OR 9.66, p=9.97E-25
rs60910145 (G1) OR 9.75, p=9.04E-24
rs71785313 (G2) OR 5.69, p=3.39E-06
2 APOL1 risk alleles OR 18.31, p=3.31E-58
PMID: 34350953 - recessive gain-of-function toxicity mouse model recapitulates human kidney disease
G1:
p.Ser342Gly, AFR/AA gnomAD v2.1 AF 0.2276 (5,671/24,920 alleles, 687 homozygotes)
p.Ile384Met, AFR/AA gnomAD v2.1 AF 0.2278 (5,487/24,082 alleles, 662 homozygotes)
G2:
p.Asn388_Tyr389del, AFR/AA gnomAD v2.1 AF 0.1402(3,402/24,268 alleles, 224 homozygotes

AMBER status due to these being susceptibility alleles, and evidence being limited to these specific variants.; Changed rating: AMBER
Mendeliome v1.1117 GOSR2 Achchuthan Shanmugasundram changed review comment from: Four children from two sibships from an extended consanguineous Palestinian family were reported with congenital profound hearing loss, whereas the parents of both sibships are first cousins with normal hearing. The families reported occasional febrile seizures in infancy for each of the deaf children, but these did not persist into adolescence. These affected children were identified with autosomal recessive GOSR2 variant, c.1A > C, p.Met1Leu. This variant appeared once in the gnomAD database, as a heterozygote, and not in any of ~2000 in-house controls of Palestinian ancestry.

All previously reported cases with biallelic GOSR2 variants had normal hearing and hence the differences in translation efficiency due to the effect of this variant may be responsible for this hearing loss phenotype (PMID:37074134).; to: This gene should be added in 'Deafness_IsolatedAndComplex' panel with red rating.

Four children from two sibships from an extended consanguineous Palestinian family were reported with congenital profound hearing loss, whereas the parents of both sibships are first cousins with normal hearing. The families reported occasional febrile seizures in infancy for each of the deaf children, but these did not persist into adolescence. These affected children were identified with autosomal recessive GOSR2 variant, c.1A > C, p.Met1Leu. This variant appeared once in the gnomAD database, as a heterozygote, and not in any of ~2000 in-house controls of Palestinian ancestry.

All previously reported cases with biallelic GOSR2 variants had normal hearing and hence the differences in translation efficiency due to the effect of this variant may be responsible for this hearing loss phenotype (PMID:37074134).
Mendeliome v1.1116 DDRGK1 Ain Roesley gene: DDRGK1 was added
gene: DDRGK1 was added to Mendeliome. Sources: Literature
founder tags were added to gene: DDRGK1.
Mode of inheritance for gene: DDRGK1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: DDRGK1 were set to 28263186; 35377455; 35670300; 36243336
Phenotypes for gene: DDRGK1 were set to Spondyloepimetaphyseal dysplasia, Shohat type (MIM#602557)
Review for gene: DDRGK1 was set to GREEN
gene: DDRGK1 was marked as current diagnostic
Added comment: RNA and protein studies performed for the splice variant. These two variants likely represents founder variants

PMID:28263186 reported six individuals from three different families of Iraqi Jewish descent (three patients from family 1 and one individual each from families 2-4) identified with homozygous c.408+1G>A donor splice site loss-of-function mutation in DDRGK1 and presented with Shohat-type spondyloepimetaphyseal dysplasia (SEMD). It is a skeletal dysplasia that affects cartilage development.

PMID: 35670300 reported two unrelated cases of Moroccan descent identified with homozygous missense variant c.406G>A and presented with SEMD. PMID:36243336 reported an Omani female patient identified with the same homozygous variant as the Iraqi cases and was reported with SEMD.

In addition, studies on both zebrafish and mouse models confirms the physiological role of DDRGK1 in the development and maintenance of the growth plate cartilage and deficiency of DDRGK1 recapitulate the clinical phenotype of short stature and joint abnormalities observed in patients with Shohat type SEMD (PMID:28263186; PMID:35377455).
Sources: Literature
Mendeliome v1.1111 CCT5 Bryony Thompson edited their review of gene: CCT5: Added comment: Now two families reported with two different missense variants (Leu224Val and His147Arg).; Changed publications: 16399879, 25124038, 25345891, 33076433, 37237456
Mendeliome v1.1108 HNRNPC Zornitza Stark gene: HNRNPC was added
gene: HNRNPC was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: HNRNPC was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: HNRNPC were set to 37541189
Phenotypes for gene: HNRNPC were set to Neurodevelopmental disorder (MONDO:0700092), HNRNPC-related
Review for gene: HNRNPC was set to GREEN
Added comment: 13 individuals with global developmental delay, intellectual disability, behavioral abnormalities, and subtle facial dysmorphology with heterozygous HNRNPC germline variants. Five had an identical in-frame deletion of nine amino acids in the extreme C terminus. Supportive functional data; haploinsufficiency is the mechanism.
Sources: Literature
Mendeliome v1.1099 RELA Zornitza Stark changed review comment from: Additional 6 individuals from two families reported.; to: Additional 6 individuals from five families reported.
Mendeliome v1.1099 RELA Zornitza Stark edited their review of gene: RELA: Added comment: Additional 6 individuals from two families reported.; Changed rating: GREEN; Changed publications: 28600438, 29305315, 37273177; Changed phenotypes: Mucocutaneous ulceration, chronic, MIM# 618287, Impaired NFkB activation, reduced production of inflammatory cytokines, autoimmune cytopaenias
Mendeliome v1.1095 DPP9 Zornitza Stark edited their review of gene: DPP9: Added comment: Amber for mono-allelic association:

de novo monoallelic dominant-negative mutation in DPP9 (c.755G>C, R252P) presenting with HLH at ~2m. Functional data supporting dominant negative mechanism.; Changed publications: 36112693, 37544411; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v1.1095 PDGFD Zornitza Stark gene: PDGFD was added
gene: PDGFD was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PDGFD was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PDGFD were set to 33187088; 33971972
Phenotypes for gene: PDGFD were set to Pulmonary arterial hypertension MONDO:0015924, PDGFD-related
Review for gene: PDGFD was set to RED
Added comment: Rated as LIMITED by ClinGen. 10 unique variants (all missense) that have been reported in 10 probands in 2 publications (PMIDs: 33187088, 33971972) are included in this curation. 9 of these variants were observed in a cohort of 1647 idiopathic pulmonary arterial hypertension (IPAH) patients of European Ancestry as part of a case-control study. Variant aggregation analysis revealed a significant burden (p=0.0000172) of likely gene damaging PDGFD variants in the IPAH cohort as compared to a group of 18,819 European controls (PMID:33971972). Gelinas et al. also reported a missense PDGFD variant in a proband with IPAH (PMID:33187088). There is currently no functional evidence demonstrating a damaging effect of any of the reported PDGFD variants in humans.
Sources: Expert list
Mendeliome v1.1093 FBLN2 Zornitza Stark gene: FBLN2 was added
gene: FBLN2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: FBLN2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: FBLN2 were set to 33971972
Phenotypes for gene: FBLN2 were set to Pulmonary arterial hypertension MONDO:0015924, FBLN2-related
Review for gene: FBLN2 was set to RED
Added comment: LIMITED by ClinGen. Out of a cohort of 1647 idiopathic PAH cases, 3 rare predicted deleterious missense variants were identified in 6 unrelated individuals with one variant recurrent in four individuals. Gene-disease association also supported by tissue expression data.
Sources: Expert list
Mendeliome v1.1087 TET2 Zornitza Stark changed review comment from: Association with PAH:
MODERATE by ClinGen. TET2 was first reported in relation to autosomal dominant pulmonary arterial hypertension (PAH) in 2020 (Potus et al., PMID: 32192357). Out of a cohort of 2572 cases from the PAH biobank, 6 rare predicted deleterious likely germline variants including missense, nonsense, and frameshift variants were identified in 6 unrelated individuals. The relationship between TET2 and PAH is also supported by experimental evidence including tissue expression in controls and patients, biochemical function as a negative regulator of a proinflammatory response, and knock out TET2 mice exhibiting a PH phenotype.; to: Association with PAH:
MODERATE by ClinGen/Amber rating here. TET2 was first reported in relation to autosomal dominant pulmonary arterial hypertension (PAH) in 2020 (Potus et al., PMID: 32192357). Out of a cohort of 2572 cases from the PAH biobank, 6 rare predicted deleterious likely germline variants including missense, nonsense, and frameshift variants were identified in 6 unrelated individuals. The relationship between TET2 and PAH is also supported by experimental evidence including tissue expression in controls and patients, biochemical function as a negative regulator of a proinflammatory response, and knock out TET2 mice exhibiting a PH phenotype.
Mendeliome v1.1087 TET2 Zornitza Stark edited their review of gene: TET2: Added comment: Association with PAH:
MODERATE by ClinGen. TET2 was first reported in relation to autosomal dominant pulmonary arterial hypertension (PAH) in 2020 (Potus et al., PMID: 32192357). Out of a cohort of 2572 cases from the PAH biobank, 6 rare predicted deleterious likely germline variants including missense, nonsense, and frameshift variants were identified in 6 unrelated individuals. The relationship between TET2 and PAH is also supported by experimental evidence including tissue expression in controls and patients, biochemical function as a negative regulator of a proinflammatory response, and knock out TET2 mice exhibiting a PH phenotype.; Changed publications: 30890702, 31827242, 32330418, 32518946, 32192357; Changed phenotypes: Dementia, Lymphoma/myeloid malignancy, Immunodeficiency-75 (IMD75), MIM#619126, Pulmonary arterial hypertension MONDO:0015924, TET2-related
Mendeliome v1.1087 HNRNPA2B1 Zornitza Stark Phenotypes for gene: HNRNPA2B1 were changed from oculopharyngeal muscular dystrophy, MONDO:0008116; Inclusion body myopathy with early-onset Paget disease with or without frontotemporal dementia 2 MIM#615422 to oculopharyngeal muscular dystrophy, MONDO:0008116, OMIM#620460; Inclusion body myopathy with early-onset Paget disease with or without frontotemporal dementia 2 MIM#615422
Mendeliome v1.1083 IL1R1 Zornitza Stark gene: IL1R1 was added
gene: IL1R1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: IL1R1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: IL1R1 were set to 37315560
Phenotypes for gene: IL1R1 were set to Chronic recurrent multifocal osteomyelitis 3, MIM# 259680
Review for gene: IL1R1 was set to RED
Added comment: Single individual reported with de novo missense variant in this gene and a phenotype of chronic recurrent multifocal osteomyelitis, auto inflammatory in nature. Some functional data presented.
Sources: Literature
Mendeliome v1.1071 SMARCA4 Paul De Fazio changed review comment from: Additional phenotype reported:

A single missense variant E1610K (M_001128849.3) was reported in 7 affected members of a family with progressive hearing loss due to otosclerosis and no other clinical features. Variant is absent from gnomAD. Note that unaffected members of the family were not tested.

A mouse CRISPR model with the orthologous variant had a similar phenotype.; to: Additional phenotype reported:

A single missense variant E1610K (M_001128849.3) was reported in 7 affected members of a family with progressive hearing loss due to otosclerosis and no other clinical features. Variant is absent from gnomAD. Note that unaffected members of the family were not tested - some obligate carriers were apparently unaffected, reflecting incomplete penetrance.

A mouse CRISPR model with the orthologous variant had a similar phenotype.
Mendeliome v1.1064 COX18 Naomi Baker gene: COX18 was added
gene: COX18 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: COX18 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: COX18 were set to PMID:37468577
Phenotypes for gene: COX18 were set to Mitochondrial disease (MONDO:0044970), COX18-related
Review for gene: COX18 was set to RED
Added comment: Paper reports a single patient with a homozygous COX18 missense variant, with a neonatal form of mitochondrial hypertrophic cardiomyopathy, lactic acidosis, failure to thrive and neurological involvement associated with severe skeletal muscle COX deficiency. Functional studies demonstrated COX deficiency which could be partially rescued with over-expression of COX18.
Sources: Literature
Mendeliome v1.1062 NAA30 Sarah Pantaleo gene: NAA30 was added
gene: NAA30 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NAA30 was set to Unknown
Publications for gene: NAA30 were set to PMID: 37387332
Penetrance for gene: NAA30 were set to unknown
Added comment: Report a de novo heterozygous NAA30 nonsense variant c.244C>T, p.(Gln82*) in a 5yo boy with GDD, ASD, hypotonia, seizures, tracheal cleft and recurrent respiratory infections. Seizures resolved after two weeks of life. Family history of ASD in older sister. Epilepsy in mother, childhood onset.

Biochemical studies performed to assess the functional impact of the premature stop codon on catalytic activity. The variant was found to completely disrupt N-terminal acetyltransferase activity using an in vitro acetylation assay.

Variant de novo, “in a gene sensitive to loss of heterozygosity”. Limitation of study - have not established whether this gene variant acts in a dominant or recessive manner.
Sources: Literature
Mendeliome v1.1060 SENP7 Elena Savva gene: SENP7 was added
gene: SENP7 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SENP7 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SENP7 were set to PMID: 37460201
Phenotypes for gene: SENP7 were set to Arthrogryposis multiplex congenita, MONDO:0015168, SENP7-related
Review for gene: SENP7 was set to AMBER
Added comment: PMID: 37460201
- 1 family (4 affecteds, sibling pair and 1st cousin) with fatal arthrogryposis multiplex congenita, early respiratory failure and neutropenia. Fetus could not be tested, so 3 confirmed genetically.
- Homozygous for a PTC, decreased mRNA from one sample supports an NMD outcome.
- Additional studies performed supporting downstream proteins expression being affected
- Neutropenia observed in 2/3 patients
Sources: Literature
Mendeliome v1.1057 SLC4A10 Krithika Murali gene: SLC4A10 was added
gene: SLC4A10 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SLC4A10 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLC4A10 were set to PMID: 37459438
Phenotypes for gene: SLC4A10 were set to Neurodevelopmental disorderMONDO:0700092, SLC4A10-related
Review for gene: SLC4A10 was set to GREEN
Added comment: PMID: 37459438 Fasham et al 2023 (Brain) report 10 affected individuals from 5 unrelated families with biallelic LoF variants in this gene with a novel neurodevelopmental disorder.

Phenotypic features include hypotonia in infancy, delayed psychomotor development, typically severe ID, progressive postnatal microcephaly, ASD traits, corpus callosal abnormalities and 'slit-like' lateral ventricles. These phenotypic features were recapitulated in knockout mice with additional supportive functional studies.

Isolated seizures was reported in 2/10 cases.
Sources: Literature
Mendeliome v1.1054 SHQ1 Zornitza Stark edited their review of gene: SHQ1: Added comment: Additional individual with isolated, early-onset dystonia reported.

It is likely these clinical presentations are part of a spectrum.; Changed rating: GREEN; Changed publications: 34542157, 29178645, 36847845, 37475611
Mendeliome v1.1045 DHX9 Achchuthan Shanmugasundram gene: DHX9 was added
gene: DHX9 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DHX9 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: DHX9 were set to 37467750
Phenotypes for gene: DHX9 were set to neurodevelopmental disorder, MONDO:0700092; intellectual disability, MONDO:0001071; Charcot-Marie-Tooth disease, MONDO:0015626
Review for gene: DHX9 was set to GREEN
Added comment: PMID:37467750 - 17 unrelated individuals were identified with de novo, ultra-rare, heterozygous missense or loss-of-function DHX9 variants, of which 14 individuals were reported with a neurodevelopmental disorder (NDD) and three were reported with Charcot-Marie-Tooth disease (CMT). All 14 cases with NDD had developmental delay, of which eight were reported with intellectual disability (4 severe, 1 moderate, 3 mild). Two cases did not have ID, one had borderline ID and three cases were too young (0-5 years old). The three cases with CMT presented with adult-onset axonal neuropathy.
Sources: Literature
Mendeliome v1.1042 KLK1 Zornitza Stark edited their review of gene: KLK1: Added comment: Association with PAH:

PMID: 31727138
screening of the biobank - 12 individuals with genetic variant in KLK1 relevant to PAH (not all were found to be hereditary). Assay showed that carriers of variants in KLK1 are less clinically severe compared to those who carry variants in BMPR2.

PMID: 17573418
Functional study using sensitive and specific type ELISAs to assay multiple panels of human tissue. KLK1 tissue was abundantly expressed in the pancreas and salivary gland and moderately expressed in the lungs.

Reviewed by ClinGen Pulmonary Hypertension GCEP on 30/8/2022 with LIMITED evidence supporting gene-disease validity; Changed publications: 31727138, 17573418; Changed phenotypes: [Kallikrein, decreased urinary activity of] 615953, Pulmonary arterial hypertension MONDO:0015924; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v1.1033 MAP3K14 Zornitza Stark Phenotypes for gene: MAP3K14 were changed from NIK deficiency; Poor T cell proliferation to antigen; Low B-cell numbers; Low NK number and function; recurrent bacterial/viral/ cryptosporidium infections; hypogammaglobulinaemia; decreased immunoglobulin levels to Immunodeficiency 112, MIM# 620449; NIK deficiency; Poor T cell proliferation to antigen; Low B-cell numbers; Low NK number and function; recurrent bacterial/viral/ cryptosporidium infections; hypogammaglobulinaemia; decreased immunoglobulin levels
Mendeliome v1.1032 MAP3K14 Zornitza Stark edited their review of gene: MAP3K14: Changed phenotypes: Immunodeficiency 112, MIM# 620449, NIK deficiency, Poor T cell proliferation to antigen, Low B-cell numbers, Low NK number and function, recurrent bacterial/viral/ cryptosporidium infections, hypogammaglobulinaemia, decreased immunoglobulin levels
Mendeliome v1.1013 PLCG1 Zornitza Stark gene: PLCG1 was added
gene: PLCG1 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: PLCG1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PLCG1 were set to 37422272
Phenotypes for gene: PLCG1 were set to Autoinflammatory syndrome, MONDO:0019751, PLCG1-related; Immune dysregulation
Mode of pathogenicity for gene: PLCG1 was set to Other
Review for gene: PLCG1 was set to AMBER
Added comment: Single 7yo proband presented with thrombocytopaenia and lymphadenopathy. De Novo , c.3062C>T, p.S1021F with functional testing supportive of GOF mechanism of disease
Sources: Expert Review
Mendeliome v1.1000 PMVK Zornitza Stark Phenotypes for gene: PMVK were changed from Porokeratosis 1, multiple types, MIM# 175800 to Porokeratosis 1, multiple types, MIM# 175800; Autoinflammatory syndrome, MONDO:0019751, PMVK-related
Mendeliome v1.997 PMVK Zornitza Stark changed review comment from: Association with auto inflammatory syndrome:

Five-year-old girl with recurring hyperinflammatory episodes initially presenting at 9mo with fever, arthritis, aphthous stomatitis and maculopapular rash with homozygous variant in PMVK p.Val131Ala (NM_006556.4: c.392T>C) with clinical overlap with MVK deficiency. Supportive functional data. Second patient, 6yo boy with compound heterozygous c.329G >A (p. Arg110Gln) and c.316G >A (p. Val106Met) mutations in trans configuration with similar phenotype.; to: Association with auto inflammatory syndrome:

Five-year-old girl with recurring hyperinflammatory episodes initially presenting at 9mo with fever, arthritis, aphthous stomatitis and maculopapular rash with homozygous variant in PMVK p.Val131Ala (NM_006556.4: c.392T>C) with clinical overlap with MVK deficiency. Supportive functional data. Second patient, 6yo boy with compound heterozygous c.329G >A (p. Arg110Gln) and c.316G >A (p. Val106Met) mutations in trans configuration with similar phenotype.

Amber for bi-allelic disease association.
Mendeliome v1.997 PMVK Zornitza Stark edited their review of gene: PMVK: Added comment: Association with auto inflammatory syndrome:

Five-year-old girl with recurring hyperinflammatory episodes initially presenting at 9mo with fever, arthritis, aphthous stomatitis and maculopapular rash with homozygous variant in PMVK p.Val131Ala (NM_006556.4: c.392T>C) with clinical overlap with MVK deficiency. Supportive functional data. Second patient, 6yo boy with compound heterozygous c.329G >A (p. Arg110Gln) and c.316G >A (p. Val106Met) mutations in trans configuration with similar phenotype.; Changed publications: 26202976, 37364720, 36410683; Changed phenotypes: Porokeratosis 1, multiple types, MIM# 175800, Autoinflammatory syndrome, MONDO:0019751, PMVK-related; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v1.996 RIPK3 Zornitza Stark gene: RIPK3 was added
gene: RIPK3 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: RIPK3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RIPK3 were set to 37083451
Phenotypes for gene: RIPK3 were set to Hereditary susceptibility to infections, MONDO:0015979, RIPK3-related; Recurrent HSV encephalitis
Review for gene: RIPK3 was set to AMBER
Added comment: Single female patient with independent episodes of HSE at 6 and 17 months of age and with autoimmune encephalitis 1 month after the second episode of HSE with two heterozygous mutations of RIPK3 predicted to be loss of function (pLOF): p. Arg422* (c.1264 C > T, MAF 0.001568, CADD 35) and p. Pro493fs9* (c.1475 C > CC, MAF 0.002611, CADD 24.2). Extensive supportive functional data including RIPK3 knockout human pluripotent stem cell–derived cortical neurons.
Sources: Expert Review
Mendeliome v1.989 NAA60 Chirag Patel gene: NAA60 was added
gene: NAA60 was added to Mendeliome. Sources: Other
Mode of inheritance for gene: NAA60 was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: NAA60 were set to Basal ganglia calcification
Review for gene: NAA60 was set to GREEN
gene: NAA60 was marked as current diagnostic
Added comment: ESHG 2023:
10 individuals from 7 families with biallelic variants in NAA60 (missense and framshift).
All with primary brain calcification - 4/10 childhood onset (DD, ID), 6/10 adult onset (cerebellar and pyramidal dysfunction, dystonia, parkinsonism, cognitive impairment, psychiatric manifestations).

NAA60 catalyses N-terminal acetylation of transmembrane proteins and localises to Golgi apparatus. In vitro assay of variants showed reduced capacity of Nt acetylation. Fibroblast studies showed significantly reduced levels of phosphate importer (SLC20A2). Loss of function variants in SLC20A2 (~50% of PFBC cases) lead to increased extracellular phosphate (which is thought to lead to calcium deposits in brain).
Sources: Other
Mendeliome v1.972 C1GALT1C1 Zornitza Stark commented on gene: C1GALT1C1: Two maternal half-brothers with missense variant and aHUS phenotype reported, increasing evidence for association.
Mendeliome v1.969 SMAD1 Bryony Thompson Added comment: Comment on list classification: Disputed gene-disease validity curation by ClinGen PH VCEP 21/11/2022 - Only two probands reported to have PAH and SMAD1 variants. The variants are missense variants without functional data at the time of curation. Thus, SMAD1 is classified as disputed for PAH based upon insufficient genetic evidence over multiple years of research.
Mendeliome v1.966 ZNF808 Hazel Phillimore gene: ZNF808 was added
gene: ZNF808 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ZNF808 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ZNF808 were set to PMID: 37308312
Phenotypes for gene: ZNF808 were set to non-syndromic neonatal diabetes; MONDO:0016391
Review for gene: ZNF808 was set to GREEN
Added comment: PMID: 37308312; Alqahtani, MA. et al. (2023) Clin Genet. doi: 10.1111/cge.14389.
Three siblings in one consanguineous Saudi Arabian family with non-syndromic neonatal diabetes, all with a homozygous frameshift variant, NM_001321425.2:c.1448dupA, p.(Tyr483*), in ZNF808. (Same nucleotide and amino acid numbering as for the MANE SELECT transcript, NM_001039886.4).
This variant has been entered as likely pathogenic in ClinVar by this group.
This variant occurs in the last exon of the gene and is therefore not NMD-predicted. Instead it is predicted to cause a truncated protein.
This paper shows a diagram with several other truncating variants in this exon, which were reported in the paper by De Franco, E. et al. (2021).
(These patients also had low vitamin D levels, suggesting an association, and is consistent with other studies looking into loci that are associated with vitamin D).

De Franco, E. et al. (2021) medRxiv 08.23.21262262. (Exeter, UK):
Firstly, this group found a homozygous variant NM_001039886.3:c.637del, p.(Leu213*) that is predicted to cause a truncated protein, and also a homozygous CNV Chr19(GRCh37):g.53057128_53100968del (predicted to cause a deletion of exons 4 and 5) in two unrelated affected individuals. These patients had pancreatic agenesis, defined as insulin-dependent diabetes in the first 6 months of life (neonatal diabetes) and exocrine pancreatic insufficiency. Both were from consanguineous families. Parents were subsequently tested and shown to be heterozygous carriers.
They then investigated 232 additional patients who had been diagnosed with neonatal diabetes before the age of 6 months and found ten more homozygous ZNF808 variants. Six were nonsense: p.(Gln194*), p.(Cys233*), p.(Tyr427*), p.(Lys458*), p.(Tyr528*) and p.(Arg727*), and three were frameshift variants: p.(Ala379Valfs*157), p.(Leu588Profs*118), p.(Asn770Ilefs*98) and one was a whole-gene deletion.
All the frameshift and nonsense variants occurred in the last exon of the gene, which contains all 23 zinc finger domains; and therefore all of these variants are predicted to result in truncated proteins, and removal of some, if not all, those domains.
This group also carried out functional studies using an in vitro model of pancreas development and showed an aberrant activation of many transposable elements (mostly MER11 elements) that would be normally be repressed during early pancreas development.
Sources: Literature
Mendeliome v1.965 SART3 Daniel Flanagan gene: SART3 was added
gene: SART3 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: SART3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SART3 were set to PMID: 37296101
Phenotypes for gene: SART3 were set to Neurodevelopmental disorder (MONDO#0700092), SART3-related; 46,XY disorder of sex development (MONDO:0020040), SART3-related
Review for gene: SART3 was set to GREEN
Added comment: Nine individuals from six families presenting with intellectual disability, global developmental delay, a subset of brain anomalies, together with gonadal dysgenesis in 46,XY individuals. Additionally, two individuals had seizures and two had epileptiform activity reported on EEG.

Human induced pluripotent stem cells carrying patient variants in SART3 show disruption to multiple signalling pathways, upregulation of spliceosome components and demonstrate aberrant gonadal and neuronal differentiation in vitro.
Sources: Expert list
Mendeliome v1.961 ARPC5 Paul De Fazio gene: ARPC5 was added
gene: ARPC5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ARPC5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ARPC5 were set to 37349293; 37382373
Phenotypes for gene: ARPC5 were set to Combined immunodeficiency, ARPC5-related MONDO:0015131
Review for gene: ARPC5 was set to GREEN
gene: ARPC5 was marked as current diagnostic
Added comment: 4 individuals from 3 families reported with homozygous LoF variants. All had recurrent and severe infections. Other developmental anomalies were present but seemed variable.

PMID:37349293 reports 2 unrelated patients. Both had scoliosis. One had neurodevelopmental delay and brain atrophy. Patient 1 died at 15yo after a sudden episode of hemoptysis and hematochezia. Patient 2 died at 1yo because of progressive neurologic and respiratory disease; an autopsy was not performed.

PMID:37382373 reports 2 patients from the same family. One had multiple congenital anomalies including a congenital heart defect (CHD) (patent foramen ovale), cleft palate, and hypoplastic corpus callosum. The sibling also had CHD (moderate pulmonary stenosis and atrial septal defect).

Functional studies and a mouse model were supportive of the disease association.
Sources: Literature
Mendeliome v1.956 RPH3A Lucy Spencer gene: RPH3A was added
gene: RPH3A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RPH3A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RPH3A were set to 37403762; 29441694
Phenotypes for gene: RPH3A were set to Neurodevelopmental disorder (MONDO#0700092), RPH3A-related
Review for gene: RPH3A was set to GREEN
Added comment: PMID: 37403762- 6 patients with RPH3A variant. All 6 have ID, 4 have epilepsy, 2 with obesity, 1 with dysmorphic features. All 6 have missense variants, 3 shown to be de novo, the other 3 parents were not available for testing. I patient also had language and motor impairment, breathing issues and mixed hypo/hypertonia- he also had variants in CUL4B, PRKAG2, SCN4A, none of these genes cause seizures (which he had).

Patch clamp studies on 2 of the missense showed they increased either the number of NMDA receptors on neuron membrane surface or increased their conductance. Study suggests that the variants interrupt the normal role of RPH3A activity at the synaptic NMDAR complex which is needed for the induction of synaptic plasticity and NMDAR-dependant behaviours

Previously this gene was reported in PMID: 29441694- 1 girl with learning disabilities, tremors, ataxia, hyperglycemia and muscle fatigability. Chet for 2 RPH3A missense. Functional analysis showed strong and marginal impairment of protein binding for each variant. this is the only biallelic report currently.
Sources: Literature
Mendeliome v1.956 MIR204 Chern Lim gene: MIR204 was added
gene: MIR204 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MIR204 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MIR204 were set to 26056285; 37321975
Phenotypes for gene: MIR204 were set to Retinal dystrophy and iris coloboma with or without cataract (MIM#616722)
Mode of pathogenicity for gene: MIR204 was set to Other
Review for gene: MIR204 was set to GREEN
gene: MIR204 was marked as current diagnostic
Added comment: PMID: 26056285
- Bilateral coloboma and rod-cone dystrophy with or without cataract in nine individuals of a five-generation family.
- Heterozygous n.37C>T segregates with the disease in all affected individuals.
- Functional analysis including transcriptome analysis showed this variant resulted in significant alterations of miR-204 targeting capabilities. In vivo injection, in medaka fish (Oryzias latipes), of the mutated miR-204 caused a phenotype consistent with that observed in the family.
- Authors suggested gain of function is the likely disease mechanism.

PMID: 37321975
- Four members of a three-generation family with early-onset chorioretinal dystrophy, heterozygous for n.37C>T.
- Additionally, four family members were shown to be affected by albinism resulting from biallelic pathogenic OCA2 variants.
- Haplotype analysis excluded relatedness with the family reported in PMID: 26056285.
- In silico analysis of the MIR204 n.37C>T variant reveals profound changes to its target mRNAs and suggests a gain-of-function mechanism of miR 204 variant.
Sources: Literature
Mendeliome v1.946 ZC4H2 Achchuthan Shanmugasundram changed review comment from: There are ten unrelated patients reported with cleft palate. Hence, this gene should be added with green rating to 'clefting disorders' panel.

PMID:31206972 - Of 42 families identified with variants in de novo and inherited heterozygous variants in ZC4H2 gene, eight patients had cleft palate in addition to several other clinical presentations. These included one patient with cleft palate from the DDD study (DECIPHER database)

DECIPHER database - Of 13 patients with monoallelic sequence variants, three patients had cleft palate.

Cleft palate has been recorded as one of the clinical presentations of female-restricted Wieacker-Wolff syndrome (MIM #301041) in OMIM.; to: There are ten unrelated patients reported with cleft palate. Hence, this gene should be added with green rating to 'clefting disorders' panel.

PMID:31206972 - Of 42 families identified with de novo and inherited variants in ZC4H2 gene, eight patients had cleft palate in addition to several other clinical presentations. These included one patient with cleft palate from the DDD study (DECIPHER database)

DECIPHER database - Of 13 patients with sequence variants, three patients had cleft palate.

Cleft palate has been recorded as one of the clinical presentations of female-restricted Wieacker-Wolff syndrome (MIM #301041) in OMIM.
Mendeliome v1.943 POGZ Achchuthan Shanmugasundram changed review comment from: Although there are more than three unrelated cases reported with either cleft palate or bifid uvula in total, this phenotype is not consistently present in patients with monoallelic variants in POGZ gene. Hence, this gene should only be added with amber rating in 'Clefting disorders panel'.

PMID:26739615 - Five unrelated individuals were identified with de novo truncating variants in POGZ gene, of which one individual had cleft palate and another one had bifid uvula.

PMID:31782611 - In this cohort of 22 individuals with 21 different loss of function variants in POGZ, two patients were reported with bifid uvula.

DECIPHER database - Of 42 patients with heterozygous sequence variants, one had cleft palate and another one had bifid uvula (PMID:37010288).

The OMIM entry for White-Sutton syndrome (MIM #616364) does not currently include cleft lip/ palate as one of the clinical manifestations of this syndrome.; to: Although there are more than three unrelated cases reported with either cleft palate or bifid uvula in total, this phenotype is not consistently present in patients with monoallelic variants in POGZ gene. Hence, this gene should only be added with amber rating in 'Clefting disorders' panel.

PMID:26739615 - Five unrelated individuals were identified with de novo truncating variants in POGZ gene, of which one individual had cleft palate and another one had bifid uvula.

PMID:31782611 - In this cohort of 22 individuals with 21 different loss of function variants in POGZ, two patients were reported with bifid uvula.

DECIPHER database - Of 42 patients with heterozygous sequence variants, one had cleft palate and another one had bifid uvula (PMID:37010288).

The OMIM entry for White-Sutton syndrome (MIM #616364) does not currently include cleft lip/ palate as one of the clinical manifestations of this syndrome.
Mendeliome v1.941 ARID1B Achchuthan Shanmugasundram changed review comment from: There are at least three unrelated cases with monoallelic variants in ARID1B gene reported with either cleft palate, cleft uvula or bifid uvula. Hence, this gene can be added with green rating in the Clefting disorders panel.

PMID:30349098 - On this web-based survey based on previously reported features of patients with variants in ARID1B gene (143 patients in total), which also included submissions to DECIPHER database, two patients were identified with cleft palate, one with cleft uvula, two with bifid uvula and three with sub mucous cleft. Although variants identified in these patients are reported in this publication, there is no association of individual patients to phenotypes available.

One patient with ARID1B variant (c.3183_3184​insT/ p.Tyr1062LeufsTer10) was reported with submucous cleft soft palate and two patients with ARID1B variants (c.4155_4156​insA/ p.Asn1386LysfsTer18 & c.2620+5G​>A) were reported with bifid uvula in DECIPHER database.; to: Although there are more than three unrelated cases with ARID1B monoallelic variants reported with either cleft palate, cleft uvula or bifid uvula, clefting isn not consistently present in patients with ARID1B variants. Hence, this gene can be added with amber rating in the Clefting disorders panel.

PMID:30349098 - On this web-based survey based on previously reported features of patients with variants in ARID1B gene (143 patients in total), which also included submissions to DECIPHER database, two patients were identified with cleft palate, one with cleft uvula, two with bifid uvula and three with sub mucous cleft. Although variants identified in these patients are reported in this publication, there is no association of individual patients to phenotypes available.

Of >100 patients with ARID1B variants in the DECIPHER database, only one patient (c.3183_3184​insT/ p.Tyr1062LeufsTer10) was reported with submucous cleft soft palate and two patients (c.4155_4156​insA/ p.Asn1386LysfsTer18 & c.2620+5G​>A) were reported with bifid uvula.
Mendeliome v1.941 CHD4 Achchuthan Shanmugasundram changed review comment from: This gene should be added to the Clefting disorders panel with a green rating as there are four unrelated cases presenting with either cleft palate and/or bifid uvula.

PMID:3138819 reported a patient with heterozygous variant (p.Gln715Ter) in CHD4 that had cleft palate and pierre robin. In addition, another patient identified with heterozygous variant p.Arg1127Gln was reported with bifid uvula.

In addition, DDD study reported two patients with likely pathogenic heterozygous variants who had cleft palate in addition to several other clinical presentations including global developmental delay (PMID:37010288); to: Although there are four unrelated cases presenting with either cleft palate and/or bifid uvula, this phenotype is not consistent among patients identified with monoallelic variants in CHD4 gene. Hence, this gene should be added to the Clefting disorders panel with amber rating.

PMID:31388190 reported 32 patients with heterozygous variants in CHD4 gene, of which one patient (p.Gln715Ter) had cleft palate and pierre robin. In addition, another patient identified with heterozygous variant p.Arg1127Gln was reported with bifid uvula.

In addition, 2 out of 10 patients with pathogenic/ likely pathogenic heterozygous variants from the DDD study were reported with cleft palate in addition to several other clinical presentations including global developmental delay (PMID:37010288).
Mendeliome v1.938 KLHL9 Bryony Thompson changed review comment from: A single German family reported in 2010, segregating a missense variant c.796T>C p.Leu95Phe. In vitro functional assays demonstrated the variant diminishes the binding of KLHL9 to Cul3.
Sources: Literature; to: A single German family reported in 2010, segregating a missense variant c.796T>C p.Leu95Phe. In vitro functional assays demonstrated the variant diminishes the binding of KLHL9 to Cul3.
Ankle flexion contracture is reported in a mouse model, but there are other significant features present in the homozygous animals too - https://www.mousephenotype.org/data/genes/MGI:2180122
Sources: Literature
Mendeliome v1.938 KLHL9 Bryony Thompson gene: KLHL9 was added
gene: KLHL9 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KLHL9 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: KLHL9 were set to 20554658
Phenotypes for gene: KLHL9 were set to distal myopathy MONDO:0018949
Review for gene: KLHL9 was set to AMBER
Added comment: A single German family reported in 2010, segregating a missense variant c.796T>C p.Leu95Phe. In vitro functional assays demonstrated the variant diminishes the binding of KLHL9 to Cul3.
Sources: Literature
Mendeliome v1.927 NFATC1 Zornitza Stark gene: NFATC1 was added
gene: NFATC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NFATC1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NFATC1 were set to 37249233
Phenotypes for gene: NFATC1 were set to Inborn error of immunity, MONDO:0003778, NFATC1-related; Combined Immune deficiency
Review for gene: NFATC1 was set to AMBER
Added comment: 3 individuals from a multigenerational consanguineous pedigree with early-onset sinopulmonary infections and bronchiectasis, recurrent viral (warts) and bacterial (folliculitis and abscesses) skin infections, hypogammaglobulinemia, lower CD4+/CD8+ T-cell ratio and lower recent thymic emigrants compared with the age-matched controls. Lymphocyte proliferation responses to PHA and CD3/CD28 stimulations were defective.

Single pedigree with supportive functional studies.
Sources: Literature
Mendeliome v1.906 UNC79 Krithika Murali gene: UNC79 was added
gene: UNC79 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: UNC79 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: UNC79 were set to PMID:37183800
Phenotypes for gene: UNC79 were set to Neurodevelopmental disorderMONDO:0700092
Review for gene: UNC79 was set to AMBER
Added comment: PMID:37183800 Bayat et al 2023 report 6 unrelated patients with heterozygous NMD-predicted LoF variants in UNC79 - x1 canonical splice site variant, x5 nonsense/frameshift. 5 were confirmed de novo, 1 not identified in mother - father unavailable for testing. All variants absent in gnomAD and v2 pLI score for UNC79 is 1.

Patients with UNC79 variants were identified through GeneMatcher or an international network of Epilepsy and Genetics departments. x1 patient underwent duo exome sequencing, remaining had trio exome sequencing - no other causative variants identified.

Phenotypic features included:
- 4/6 autistic features
- 5/6 patients mild-moderate ID
- 4/6 behavioural issues (aggression, stereotypies)
- 4/6 epilepsy (focal to bilateral tonic-clonic seizures)
- 5/6 hypotonia

unc79 knockdown drosophila flies exhibited significantly higher rate of seizure-like behaviour than controls. unc79 haploinsufficiency shown to lead to significant reduction in protein levels of both unc79 and unc80 in mouse brains. Unc79 haploinsufficiency associated with deficiency in hippocampal-dependent learning and memory in mice.

Authors have reviewed their own evidence in relation to the gene-disease criteria detailed by Strande et al 2017 and note that their clinical and experimental data provides moderate-level evidence supporting the association between UNC79 and a neurodevelopment disorder including ASD.

Amber association favoured due to clinical phenotypic range reported between affected individuals and their lack of specificity.
Sources: Literature
Mendeliome v1.903 MRPL50 Anna Ritchie gene: MRPL50 was added
gene: MRPL50 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MRPL50 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MRPL50 were set to PMID: 37148394
Phenotypes for gene: MRPL50 were set to Mitochondrial disease, MONDO: 004470, MRPL50-related
Added comment: A homozygous missense variant (c.335T>A; p.Val112Asp) shared by twin sisters presenting with premature ovarian insufficiency, bilateral high-frequency sensorineural hearing loss, kidney and heart dysfunction.
Quantitative proteomics data demonstrated a significant reduction in abundance of MRPL50 protein when compared with controls.
Patient fibroblasts have a mild but significant decrease in the abundance of mitochondrial complex I. This data supports a biochemical phenotype associated with MRPL50 variants.
Knockdown/knockout of mRpL50 in Drosophila, resulted abnormal ovarian development.
Sources: Literature
Mendeliome v1.897 ACBD6 Lucy Spencer gene: ACBD6 was added
gene: ACBD6 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ACBD6 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ACBD6 were set to 36457943; 21937992; 35446914
Phenotypes for gene: ACBD6 were set to Neurodevelopmental disorder (MONDO#0700092), ACBD6-related
Review for gene: ACBD6 was set to GREEN
Added comment: PMID: 36457943
2 siblings with a neurodevelopmental disorder: severely delayed development, obesity, pancytopenia, diabetes, liver cirrhosis, intravertebral disc herniation, mild brain atrophy. Consanguineous family both siblings found to have a homozygous frameshift.

This paper also mentioned 3 other reported variants in 6 individuals (only 3 unrelated) all homozygous, 2 frameshift, 1 canonical splice. All reported to have a neurodevelopmental disorder, some with limited information but one family also has obesity, spasticity, and dysmorphism. PMIDs: 21937992, 35446914
Sources: Literature
Mendeliome v1.896 MAP4K4 Zornitza Stark edited their review of gene: MAP4K4: Added comment: 26 individuals from 21 families reported with Rasopathy-like phenotype, comprising ID/DD, dysmorphic features and congenital anomalies.; Changed rating: GREEN; Changed publications: 37126546; Changed phenotypes: RASopathy, MONDO:0021060, MAP4K4-related; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v1.891 ATP11A Zornitza Stark edited their review of gene: ATP11A: Added comment: PMID 35278131 reports three additional families with deafness, including segregation in a large pedigree.; Changed rating: GREEN; Changed publications: 35278131
Mendeliome v1.869 AMFR Yetong Chen gene: AMFR was added
gene: AMFR was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: AMFR was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: AMFR were set to 37119330
Phenotypes for gene: AMFR were set to Hereditary spastic paraplegia, MONDO:0019064
Review for gene: AMFR was set to GREEN
Added comment: PMID 37119330 reports 20 individuals harbouring AMFR variants from 8 unrelated, consanguineous families. All patients had early disease onset (<3 years), including motor delay, lower limb hyperreflexia and spastic paraplegia that match the typical phenotypes of hereditary spastic paraplegia.
Sources: Literature
Mendeliome v1.863 SLC4A2 Zornitza Stark gene: SLC4A2 was added
gene: SLC4A2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SLC4A2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLC4A2 were set to 34668226; 20507629
Phenotypes for gene: SLC4A2 were set to Osteopetrosis, autosomal recessive 9, MIM# 620366
Review for gene: SLC4A2 was set to AMBER
Added comment: Single individual reported with homozygous missense variant. However, cattle and mouse models support gene-disease association.
Sources: Literature
Mendeliome v1.848 NAF1 Bryony Thompson gene: NAF1 was added
gene: NAF1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: NAF1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: NAF1 were set to 27510903
Phenotypes for gene: NAF1 were set to Pulmonary fibrosis and/or bone marrow failure, telomere-related MONDO:0000148
Review for gene: NAF1 was set to GREEN
Added comment: At least 3 probands/families with telomere-related pulmonary fibrosis and a supporting mouse model
PMID: 27510903 - 5 individuals from 2 unrelated families with pulmonary fibrosis-emphysema and extrapulmonary manifestations including myelodysplastic syndrome and liver disease, with LoF variants. Truncated NAF1 was detected in cells derived from patients, and, in cells in which a frameshift mutation was introduced by genome editing telomerase RNA levels were reduced. Shortened telomere length also segregated with the variants. A Naf1+/- mouse model had reduced telomerase RNA levels

ClinVar - 1 nonsense and 2 splice site variants (ID: 2443185, 1338525, 2443184) called LP by the Genetic Services Laboratory, University of Chicago but no clinical details were provided
- SCV002547372.1 - Garcia Pulmonary Genetics Research Laboratory, Columbia University Irving Medical Center - at least one individual with pulmonary fibrosis and leukocyte telomere length (by qPCR) less than 10th percentile age-adjusted
Sources: Expert list
Mendeliome v1.836 SRSF1 Paul De Fazio gene: SRSF1 was added
gene: SRSF1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SRSF1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: SRSF1 were set to 37071997
Phenotypes for gene: SRSF1 were set to Neurodevelopmental disorder, SRSF1-related MONDO:0700092
Review for gene: SRSF1 was set to GREEN
gene: SRSF1 was marked as current diagnostic
Added comment: 17 individuals from 16 families reported with mostly de novo variants. Variants were a mixture of missense, nonsense/frameshift (both NMD-predicted and not NMD-predicted) and microdeletions. In one family, only one parent was available for testing. In another family, 2 affected siblings had the variant but the variant was not identified in either parent suggesting germline mosaicism.

Functional testing of a subset of variants in Drosophila supported pathogenicity in most, but 2 missense variants showed no functional effect and were classified VUS. Episignature analysis (EpiSign) on patient DNA from blood showed a specific DNA methylation signature in patients with the variants classified pathogenic but not those classified VUS.

Phenotypes included mainly neurological abnormalities (mild to moderate ID/dev delay, motor delay, speech delay, and behavioural disorders) and facial dysmorphisms.

Other features included hypotonia (11/16), variable brain abnormalities on MRI (6/12), variable cardiac malformations (6/14). urogenital malformations e.g. hypospadias, cryptorchidism (6/13), scoliosis (5/17) and/or variable other skeletal abnormalities (10/17).
Sources: Literature
Mendeliome v1.834 SLC30A9 Lucy Spencer gene: SLC30A9 was added
gene: SLC30A9 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SLC30A9 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLC30A9 were set to 37041080
Phenotypes for gene: SLC30A9 were set to Birk-Landau-Perez syndrome (MIM#617595)
Review for gene: SLC30A9 was set to GREEN
Added comment: PMID:37041080 - 2 families previously reported and this paper describes 4 more with biallelic SLC30A9 variants. Original 2 families: 6 affected members all hom for Ala350del, and 1 affected member chet for 2 frameshifts. 4 families from this paper: 2 families have the same homozygous missense (Gly418Val), family 3 has 4 affected sibs hom for Ala350del, family 4 1 affected chet for a frameshift and a synonymous. So 2 fams homs for Ala350del and 2 fams hom for Gly418Val.
All have Brik-Landau-Perez syndrome: all with ID, movement disorder and dystonia, and many with oculomotor apraxia, renal abnormalitie, ptosis, some had hearing impairment.
Sources: Literature
Mendeliome v1.834 GPR156 Anna Ritchie gene: GPR156 was added
gene: GPR156 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GPR156 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GPR156 were set to PMID: 36928819
Phenotypes for gene: GPR156 were set to Sensorineural hearing loss, MONDO:60700002, GPR156-related
Review for gene: GPR156 was set to GREEN
Added comment: Eight affected individuals from three unrelated families with congenital nonsyndromic bilateral sensorineural hearing loss. Homozygous or compound heterozygous loss of function variants were reported in these families.
Sources: Literature
Mendeliome v1.826 YWHAE Zornitza Stark gene: YWHAE was added
gene: YWHAE was added to Mendeliome. Sources: Literature
SV/CNV tags were added to gene: YWHAE.
Mode of inheritance for gene: YWHAE was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: YWHAE were set to 36999555
Phenotypes for gene: YWHAE were set to Neurodevelopmental disorder, MONDO:0700092
Review for gene: YWHAE was set to GREEN
Added comment: PMID 36999555 reports 10 patients with YWHAE variants (1 intragenic deletion and 5 large deletions encompassing YWHEA but not PAFAH1B1) who have mild to severe intellectual disability. 3 individuals with SNVs. Mouse model supports gene-disease association.
Sources: Literature
Mendeliome v1.819 INTS11 Achchuthan Shanmugasundram gene: INTS11 was added
gene: INTS11 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: INTS11 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: INTS11 were set to 37054711
Review for gene: INTS11 was set to GREEN
Added comment: Comment on gene rating: This gene should be rated GREEN in Intellectual disability panel as it has 10 unrelated cases and functional evidence in support of this association.

PMID:37054711 reported ten unrelated families with biallelic variants in INTS11 gene and they present with intellectual disability, global developmental and language delay, impaired motor development, and brain atrophy.

Functional studies in Drosophila showed that dIntS11 (fly ortholog of INTS11) is essential and expressed in the central nervous systems in a subset of neurons and most glia in larval and adult stages. In addition, genes with two variants (p.Arg17Leu and p.His414Tyr) fail to rescue the lethality of null mutants in the Drosophila model, indicating that they are strong loss-of-function variants. The other five variants (p.Gly55Ser, p.Leu138Phe, p.Lys396Glu, p.Val517Met and p.Ile553Glu) rescue lethality but cause a shortened lifespan and bang sensitivity and affect locomotor activity, indicating that they are partial loss-of-function variants.
Sources: Literature
Mendeliome v1.814 MARS Zornitza Stark edited their review of gene: MARS: Added comment: Six individuals from two unrelated families reported with SPG.; Changed publications: 23729695, 24354524, 29655802, 24103465, 25913036, 24482476, 34585293; Changed phenotypes: Interstitial lung and liver disease, MIM#615486, Charcot-Marie-Tooth disease, axonal, type 2U, MIM# 616280, Spastic paraplegia 70, autosomal recessive, MIM# 620323
Mendeliome v1.807 KDM5A Achchuthan Shanmugasundram gene: KDM5A was added
gene: KDM5A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KDM5A was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: KDM5A were set to 21937992; 33350388
Phenotypes for gene: KDM5A were set to autism spectrum disorder, MONDO:0005258; intellectual disability, MONDO:0001071
Review for gene: KDM5A was set to GREEN
Added comment: PMID:21937992 reported a family with recessive missense KDM5A variant presenting with an undefined developmental disorder characterised with intellectual disability and facial dysmorphisms.

PMID:33350388 reported nine patients from seven unrelated families identified with variants in KDM5A, of which three unrelated patients harboured heterozygous variants, while six patients from four unrelated families had homozygous variants. These patients presented with autism spectrum disorder (ASD) and a spectrum of neurodevelopmental phenotypes including intellectual disability, lack of speech, developmental delay and motor impairment.

In addition, loss of KDM5A has resulted in repetitive behaviors, sociability deficits, cognitive dysfunction, and abnormal dendritic morphogenesis in mice.

This gene has already been associated with phenotype in Gene2Phenotype (biallelic inheritance with 'limited' rating), but not in OMIM.
Sources: Literature
Mendeliome v1.803 ROBO1 Zornitza Stark edited their review of gene: ROBO1: Added comment: Association with ID: GREEN for bi-allelic variants:

PMID:28286008 reported a boy with compound heterozygous variants that was presented with developmental delay in 13 months and had severe intellectual disability and hyperactivity at nine years of age. He was nonverbal and wheelchair dependent because of spastic diplegia and ataxia.

PMID:30692597 reported a five year old boy identified with a homozygous ROBO1 variant who had combined pituitary hormone deficiency, psychomotor developmental delay, severe intellectual disability, sensorineural hearing loss, strabismus and characteristic facial features.

PMID:35227688 reported eight patients including the boy reported in PMID:30692597. Of the other seven patients, three were presented with intellectual disability. Of these three patients, two harboured compound heterozygous and one harboured homozygous variants.

PMID:35348658 reported a patient identified with monoallelic de novo variant (p.D422G) who presented with early-onset epileptic encephalopathy and had severe developmental delay.; Changed phenotypes: Congenital heart disease, Pituitary anomalies, Nystagmus 8, congenital, autosomal recessive, MIM# 257400, intellectual disability, MONDO:0001071
Mendeliome v1.793 MAP3K3 Zornitza Stark gene: MAP3K3 was added
gene: MAP3K3 was added to Mendeliome. Sources: Literature
somatic tags were added to gene: MAP3K3.
Mode of inheritance for gene: MAP3K3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MAP3K3 were set to 33729480; 35355835; 33891857; 36995941; 10700190; 25728774
Phenotypes for gene: MAP3K3 were set to Cerebral malformation, MONDO:0016054, MAP3K3-related
Mode of pathogenicity for gene: MAP3K3 was set to Other
Review for gene: MAP3K3 was set to GREEN
Added comment: Recurrent somatic missense variant (p.I441M) identified in sporadic cases of cerebral and spinal cavernous malformation. Recent publication demonstrates that this missense variant can drive CCM formation (in vitro and in vivo studies).
Sources: Literature
Mendeliome v1.776 CEP162 Paul De Fazio gene: CEP162 was added
gene: CEP162 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CEP162 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CEP162 were set to 36862503
Phenotypes for gene: CEP162 were set to Retinitis pigmentosa MONDO:0019200, CEP162-related
Penetrance for gene: CEP162 were set to unknown
Review for gene: CEP162 was set to AMBER
gene: CEP162 was marked as current diagnostic
Added comment: 2 patients from reportedly unrelated consanguineous Moroccan families with the same homozygous frameshift variant reported with late-onset retinal degeneration. Patient 1 was diagnosed with RP at age 60, patient 2 at age 69. Both reported loss of visual acuity in the years prior.

Immunoblotting of cell lysates from patient fibroblasts showed that some mutant transcript escaped NMD. Functional testing showed that the truncated protein could bind microtubules but was unable to associate with centrioles or its interaction partner CEP290. Patient fibroblasts were shown to have delayed ciliation.

Mutant protein was unable to rescue loss of cilia in CEP162 knockdown mice supporting that the mutant protein does not retain any ciliary function, however additional data supported that the truncated protein was able to bind microtubules and function normally during neuroretinal development. The authors suggest this likely underlies the late-onset RP in both patients.

Rated Amber because only a single variant has been reported in patients who may or may not be related (same ethnic background).
Sources: Literature
Mendeliome v1.774 RNH1 Krithika Murali changed review comment from: PMID: 36935417 report two siblings from a consanguineous Somali family with homozygous RNH1 splice site variant (c.615-2A>C) with congenital cataracts, global developmental delay, hypotonia, seizures (focal and generalised) and regression in the context of infection. RT-PCR and RNASeq of skeletal muscle supported exon 7 skipping with an in-frame deletion involving 57 amino acids with reduced expression on Western blot analysis.
Sources: Literature; to: PMID: 36935417 report two siblings from a consanguineous Somali family with homozygous RNH1 splice site variant (c.615-2A>C) with congenital cataracts, global developmental delay, hypotonia, seizures (focal and generalised) and regression in the context of infection. RT-PCR and RNASeq of skeletal muscle supported exon 7 skipping with an in-frame deletion involving 57 amino acids with reduced expression on Western blot analysis. No antenatal features reported.
Sources: Literature
Mendeliome v1.773 RNH1 Krithika Murali gene: RNH1 was added
gene: RNH1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RNH1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RNH1 were set to PMID: 36935417
Phenotypes for gene: RNH1 were set to RNH1-related disorder
Review for gene: RNH1 was set to AMBER
Added comment: PMID: 36935417 report two siblings from a consanguineous Somali family with homozygous RNH1 splice site variant (c.615-2A>C) with congenital cataracts, global developmental delay, hypotonia, seizures (focal and generalised) and regression in the context of infection. RT-PCR and RNASeq of skeletal muscle supported exon 7 skipping with an in-frame deletion involving 57 amino acids with reduced expression on Western blot analysis.
Sources: Literature
Mendeliome v1.768 FILIP1 Paul De Fazio gene: FILIP1 was added
gene: FILIP1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FILIP1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FILIP1 were set to 36943452
Phenotypes for gene: FILIP1 were set to Arthrogryposis multiplex congenita MONDO:0015168
Penetrance for gene: FILIP1 were set to unknown
Review for gene: FILIP1 was set to GREEN
gene: FILIP1 was marked as current diagnostic
Added comment: 3 families, all consanguineous, reported with 3 different homozygous loss of function variants (2x NMD-predicted nonsense, 1x intragenic deletion of exons 3-6 of 6). In one family, the variant segregated in 3 affected siblings.

Phenotypes consist of congenital contractures affecting shoulder, elbow, hand, hip, knee and foot as well as scoliosis, reduced palmar and plantar skin folds, microcephaly (-1.5 to -4 SD), and facial dysmorphism.
Sources: Literature
Mendeliome v1.763 PPCDC Bryony Thompson gene: PPCDC was added
gene: PPCDC was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PPCDC was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PPCDC were set to 36564894
Phenotypes for gene: PPCDC were set to dilated cardiomyopathy MONDO:0005021
Review for gene: PPCDC was set to RED
Added comment: Single family reported with two siblings with a fatal cardiac phenotype including dilated cardiomyopathy with biallelic variants p.Thr53Pro and p.Ala95Val. Patient-derived fibroblasts showed an absence of PPCDC protein, and nearly 50% reductions in CoA levels. The cells showed clear energy deficiency problems, with defects in mitochondrial respiration, and mostly glycolytic ATP synthesis. Functional studies performed in yeast suggest these mutations to be functionally relevant.
Sources: Literature
Mendeliome v1.757 RNF212B Sangavi Sivagnanasundram gene: RNF212B was added
gene: RNF212B was added to Mendeliome. Sources: Other
Mode of inheritance for gene: RNF212B was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RNF212B were set to https://doi.org/10.1016/j.xhgg.2023.100189
Phenotypes for gene: RNF212B were set to Infertility disorder, MONDO:0005047
Review for gene: RNF212B was set to AMBER
Added comment: Homozygous nonsense mutation (R150X) causative of oligoasthenotheratozoospermia (OAT) identified in three unrelated individuals (two of Jewish decent from the same consanguineous family).

Drosophila ZIP3/RNF212 related gene paralogs (vilya, narya, nenya) showed loss of function in the RNF212B protein and promoted formation of DNA double-stand breaks. The mutant was shown to result in a reduction in fertility in the Drosophila paralogs.

Note: RNF212B is reported to be exclusively expressed in the testes only compared to RNF212 which is reported in both the testes and ovaries.
Sources: Other
Mendeliome v1.757 SLC31A1 Zornitza Stark Phenotypes for gene: SLC31A1 were changed from Neurodevelopmental disorder, SLC31A1-related (MONDO#0700092) to Neurodegeneration and seizures due to copper transport defect, MIM# 620306
Mendeliome v1.756 SLC31A1 Zornitza Stark edited their review of gene: SLC31A1: Changed phenotypes: Neurodegeneration and seizures due to copper transport defect, MIM# 620306
Mendeliome v1.752 PRDM10 Achchuthan Shanmugasundram gene: PRDM10 was added
gene: PRDM10 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PRDM10 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PRDM10 were set to 36440963
Phenotypes for gene: PRDM10 were set to Fibrofolliculoma, HP:0030436; lipomatosis, MONDO:0006574; renal cell carcinoma, MONDO:0005086
Review for gene: PRDM10 was set to RED
Added comment: PMID:36440963 reported a family presenting with skin and mucosal lesions, extensive lipomatosis and renal cell carcinomas. The proband was initially diagnosed with Birt-Hogg-Dubé syndrome (BHD, MIM #135150) based on the presence of fibrofolliculomas, but no pathogenic germline variant was detected in FLCN, the gene associated with BHD. A heterozygous missense variant (p.Cys677Tyr) was identified, which co-segregated with the phenotype in the family.

Functional studies show that Cys677Tyr loses affinity for a regulatory binding motif in the FLCN promoter, abrogating cellular FLCN mRNA and protein levels. Overexpressing inducible PRDM10Cys677Tyr in renal epithelial cells altered the transcription of multiple genes, showing overlap but also differences with the effects of knocking out FLCN.

This gene has not yet been associated with phenotypes either in OMIM or in Gene2Phenotype.
Sources: Literature
Mendeliome v1.751 SLC26A7 Zornitza Stark gene: SLC26A7 was added
gene: SLC26A7 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: SLC26A7 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLC26A7 were set to 34780050; 32486989; 31372509; 30333321
Phenotypes for gene: SLC26A7 were set to Congenital hypothyroidism, MONDO:0018612, SLC26A7-related
Review for gene: SLC26A7 was set to GREEN
Added comment: More than 10 unrelated families reported.
Sources: Expert list
Mendeliome v1.748 LCP2 Zornitza Stark edited their review of gene: LCP2: Added comment: PMID 36474126: second individual reported. Functional data.; Changed rating: GREEN; Changed publications: 33231617, 36474126
Mendeliome v1.743 THAP11 Zornitza Stark gene: THAP11 was added
gene: THAP11 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: THAP11 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: THAP11 were set to 28449119
Phenotypes for gene: THAP11 were set to Inborn disorder of cobalamin metabolism and transport, MONDO:0019220, THAP11-related
Review for gene: THAP11 was set to RED
Added comment: Single individual reported with homozygous missense variant, supportive functional data.
Sources: Expert Review
Mendeliome v1.735 IRS4 Zornitza Stark gene: IRS4 was added
gene: IRS4 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: IRS4 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: IRS4 were set to 30061370
Phenotypes for gene: IRS4 were set to Hypothyroidism, congenital, nongoitrous, 9, MIM# 301035
Review for gene: IRS4 was set to GREEN
Added comment: Nongoitrous congenital hypothyroidism-9 (CHNG9) is characterized by a small thyroid gland with low free T4 (FT4) levels and inappropriately normal levels of thyroid-stimulating hormone (TSH). Five unrelated families reported.
Sources: Expert Review
Mendeliome v1.728 ACTA1 Zornitza Stark Phenotypes for gene: ACTA1 were changed from Myopathy, actin, congenital, with cores, MIM#161800; Myopathy, actin, congenital, with excess of thin myofilaments, MIM#161800; Myopathy, congenital, with fiber-type disproportion 1, MIM#255310; Nemaline myopathy 3, MIM#161800; ?Myopathy, scapulohumeroperoneal to Congenital myopathy 2C, severe infantile, autosomal dominant, MIM# 620278; Myopathy, actin, congenital, with cores, MIM#161800; Myopathy, actin, congenital, with excess of thin myofilaments, MIM#161800; Myopathy, congenital, with fiber-type disproportion 1, MIM#255310; Nemaline myopathy 3, MIM#161800; ?Myopathy, scapulohumeroperoneal
Mendeliome v1.727 REPS1 Zornitza Stark gene: REPS1 was added
gene: REPS1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: REPS1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: REPS1 were set to 29395073
Phenotypes for gene: REPS1 were set to Neurodegeneration with brain iron accumulation 7 , MIM# 617916
Review for gene: REPS1 was set to RED
Added comment: Two siblings reported with compound het missense variants in this gene and a neurodegenerative course in childhood.
Sources: Literature
Mendeliome v1.719 DPYSL2 Zornitza Stark gene: DPYSL2 was added
gene: DPYSL2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DPYSL2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: DPYSL2 were set to 27249678; 35861646
Phenotypes for gene: DPYSL2 were set to intellectual disability, MONDO:0001071, DPYSL2-related
Review for gene: DPYSL2 was set to AMBER
Added comment: Two unrelated cases with monoallelic variants in DPYSL2/ CRMP2, supported by functional studies. However, the evidence is not sufficient for green rating as there are variants reported in other (but different) genes in the two patients.

PMID:35861646 reported two cases identified with heterozygous variants (patient1: c.1693C>T (p.Arg565Cys); patient 2: c.42C>A (p.Ser14Arg). These patients had overlapping phenotypes including dysmorphic features, severe global developmental delay and hypoplasia of the corpus callosum. In addition, patient 2 was bed-ridden and could not roll out and had a history of myoclonic seizures and status epilepticus.

It should be noted that patient 1 is compound heterozygous for 2 missense variants in the EFCAB5 gene and was hemizygous for a maternally inherited missense variant in the GPKOW gene and patient 2 had 1 de novo missense variant in the COBLL1 gene and was compound heterozygous for 2 missense variants in the POTEF gene. The severity of the phenotypes between the two cases differs significantly and the additional variants may have possibly contributed to this phenotype.

Brain-specific Crmp2 knockout mice display neuronal development deficits and behavioural impairments associated with hypoplasia of the corpus callosum. In addition, functional studies performed in zebrafish and cell lines that the CRMP2 variants lead to the loss-of-function of CRMP2 protein and can cause intellectual disability.
Sources: Literature
Mendeliome v1.717 RBSN Zornitza Stark gene: RBSN was added
gene: RBSN was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RBSN was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RBSN were set to 25233840; 29784638; 35652444
Phenotypes for gene: RBSN were set to intellectual disability, MONDO:0001071, RBSN-related
Review for gene: RBSN was set to GREEN
Added comment: Four unrelated families reported, consistent feature is ID.

PMID:25233840 reported a 6.5 year old female patient with a homozygous missense variant c.1273G > A (p.Gly425Arg) and her clinical presentation included intractable seizures, developmental delay, microcephaly, dysostosis, osteopenia, craniofacial dysmorphism, macrocytosis and megaloblastoid erythropoiesis.

PMID:29784638 reported three siblings with homozygous variant c.289G>C (p.Gly97Arg) in RBSN. The proband presented global developmental delay, had complete 46,XY male-to-female sex reversal and died at age 20 months after multiple infections. The other 2 affected siblings underwent unrelated-donor bone marrow or stem cell transplantation at 8 and 6.5 months of age, respectively. Both have severe intellectual disability and are nonambulatory and nonverbal.

PMID:35652444 reported two unrelated families (three siblings from a family of Iranian descent identified with homozygous variant c.547G>A (p.Gly183Arg) and four members from a family of indigenous Cree descent identified with homozygous variant c.538C>G (p.Arg180Gly)) with overlapping phenotypes including developmental delay, intellectual disability, distal motor axonal neuropathy and facial dysmorphism.
Sources: Literature
Mendeliome v1.711 ATP5B Zornitza Stark changed review comment from: Two families only, clinical presentation with dystonia; incomplete penetrance observed. Some functional data.

Note also PMID 36239646 reporting de novo variant in identical twins with hypermetabolism.
Sources: Literature; to: PMID 36860166: Two families only, clinical presentation with dystonia; incomplete penetrance observed. Some functional data.

Note also PMID 36239646 reporting de novo variant in identical twins with hypermetabolism.
Sources: Literature
Mendeliome v1.711 ATP5B Zornitza Stark changed review comment from: Two families only, clinical presentation with dystonia; incomplete penetrance observed. Some functional data.
Sources: Literature; to: Two families only, clinical presentation with dystonia; incomplete penetrance observed. Some functional data.

Note also PMID 36239646 reporting de novo variant in identical twins with hypermetabolism.
Sources: Literature
Mendeliome v1.711 EPHA10 Achchuthan Shanmugasundram changed review comment from: Comment on rating: This gene should be rated RED as this gene has been associated with post-lingual autosomal dominant non-syndromic hearing loss from a single family, and supported by functional studies.

PMID:36048850 reported the identification of a heterozygous non-coding variant c.-81_-73delinsAGC cosegregating with hearing loss. Although variants have been identified in KIF17 and USP48 in several members of this family, they did not cosegregate with hearing loss. One affected member of this family had an ideal hearing restoration after cochlear implantation.

Epha10 was expressed in mouse cochlea at both transcription and translation levels. In addition, EPHA10 mRNA was detected upregulated in patients compared with controls by qRT-PCR. Overexpression of Eph (the homolog of human EPHA10) altered the structure and function of chordotonal organ (equivalent to mammalian auditory organs) in fly model. These functional evidence suggests that 'gain of function' may be responsible for the hearing loss phenotype.

This gene has not yet been associated with any phenotypes in OMIM or Gene2Phenotype.
Sources: Literature; to: Comment on rating: This gene should be rated RED as this gene has been associated with post-lingual autosomal dominant non-syndromic hearing loss from a single family, and supported by functional studies.

PMID:36048850 reported the identification of a heterozygous non-coding variant c.-81_-73delinsAGC cosegregating with hearing loss. Although variants have been identified in KIF17 and USP48 in several members of this family, they did not cosegregate with hearing loss. One affected member of this family had an ideal hearing restoration after cochlear implantation.

Epha10 was expressed in mouse cochlea at both transcription and translation levels. In addition, EPHA10 mRNA was detected upregulated in patients compared with controls by qRT-PCR. Overexpression of Eph (the homolog of human EPHA10) altered the structure and function of chordotonal organ (equivalent to mammalian auditory organs) in fly model. Particularly, Eph overexpressed flies had a poorer performance compared to controls in negative geotaxis assay. These functional evidence suggests that 'gain of function' may be responsible for the hearing loss phenotype.

This gene has not yet been associated with any phenotypes in OMIM or Gene2Phenotype.
Sources: Literature
Mendeliome v1.711 OXR1 Achchuthan Shanmugasundram changed review comment from: Comment on gene rating: This gene should be rated AMBER as there is one case and supportive functional data to associate OXR1 with hearing loss.

A four years old girl was identified with a novel homozygous missense variant (c.233A > G, p.Lys78Arg) in OXR1 gene and was reported with sensorineural hearing loss.

Functional studies in zebrafish model showed that the ortholog orx1b gene is expressed in the statoacoustic ganglion (SAG, a sensory ganglion of ear) and posterior lateral line ganglion (pLL). In addition, knockdown of oxr1b resulted in a significant developmental defect of SAG and pLL and this phenotype was rescued by co-injection of wild-type human OXR1 mRNAs, but not mutant OXR1 (c.233A > G) mRNAs.; to: Comment on gene rating: This gene should be rated AMBER as there is one case and supportive functional data to associate OXR1 with hearing loss.

A four years old girl was identified with a novel homozygous missense variant (c.233A > G, p.Lys78Arg) in OXR1 gene and was reported with sensorineural hearing loss.

Functional studies in zebrafish model showed that the ortholog orx1b gene is expressed in the statoacoustic ganglion (SAG, a sensory ganglion of ear) and posterior lateral line ganglion (pLL). In addition, knockdown of oxr1b resulted in a significant developmental defect of SAG and pLL and this phenotype was rescued by co-injection of wild-type human OXR1 mRNAs, but not mutant OXR1 (c.233A > G) mRNAs.

This gene has not yet been associated with hearing loss either in OMIM or in Gene2Phenotype.
Mendeliome v1.711 EPHA10 Achchuthan Shanmugasundram changed review comment from: Comment on rating: This gene should be rated RED as this gene has been associated with post-lingual autosomal dominant non-syndromic hearing loss from a single family, and supported by functional studies.

PMID:36048850 reported the identification of a heterozygous non-coding variant c.-81_-73delinsAGC cosegregating with hearing loss. Although variants have been identified in KIF17 and USP48 in several members of this family, they did not cosegregate with hearing loss. One affected member of this family had an ideal hearing restoration after cochlear implantation.

Epha10 was expressed in mouse cochlea at both transcription and translation levels. In addition, EPHA10 mRNA was detected upregulated in patients compared with controls by qRT-PCR. Overexpression of Eph (the homolog of human EPHA10) altered the structure and function of chordotonal organ (equivalent to mammalian auditory organs) in fly model. These functional evidence suggests that 'gain of function' may be responsible for the hearing loss phenotype.

This gene has not yet been associated with any phenotypes in OMIM or Gene2Phenotype.
Sources: Literature; to: Comment on rating: This gene should be rated RED as this gene has been associated with post-lingual autosomal dominant non-syndromic hearing loss from a single family, and supported by functional studies.

PMID:36048850 reported the identification of a heterozygous non-coding variant c.-81_-73delinsAGC cosegregating with hearing loss. Although variants have been identified in KIF17 and USP48 in several members of this family, they did not cosegregate with hearing loss. One affected member of this family had an ideal hearing restoration after cochlear implantation.

Epha10 was expressed in mouse cochlea at both transcription and translation levels. In addition, EPHA10 mRNA was detected upregulated in patients compared with controls by qRT-PCR. Overexpression of Eph (the homolog of human EPHA10) altered the structure and function of chordotonal organ (equivalent to mammalian auditory organs) in fly model. These functional evidence suggests that 'gain of function' may be responsible for the hearing loss phenotype.

This gene has not yet been associated with any phenotypes in OMIM or Gene2Phenotype.
Sources: Literature
Mendeliome v1.711 EPHA10 Achchuthan Shanmugasundram gene: EPHA10 was added
gene: EPHA10 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: EPHA10 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: EPHA10 were set to 36048850
Phenotypes for gene: EPHA10 were set to postlingual non-syndromic genetic hearing loss, MONDO:0016298
Mode of pathogenicity for gene: EPHA10 was set to Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments
Review for gene: EPHA10 was set to RED
Added comment: Comment on rating: This gene should be rated RED as this gene has been associated with post-lingual autosomal dominant non-syndromic hearing loss from a single family, and supported by functional studies.

PMID:36048850 reported the identification of a heterozygous non-coding variant c.-81_-73delinsAGC cosegregating with hearing loss. Although variants have been identified in KIF17 and USP48 in several members of this family, they did not cosegregate with hearing loss. One affected member of this family had an ideal hearing restoration after cochlear implantation.

Epha10 was expressed in mouse cochlea at both transcription and translation levels. In addition, EPHA10 mRNA was detected upregulated in patients compared with controls by qRT-PCR. Overexpression of Eph (the homolog of human EPHA10) altered the structure and function of chordotonal organ (equivalent to mammalian auditory organs) in fly model. These functional evidence suggests that 'gain of function' may be responsible for the hearing loss phenotype.

This gene has not yet been associated with any phenotypes in OMIM or Gene2Phenotype.
Sources: Literature
Mendeliome v1.708 SHQ1 Zornitza Stark edited their review of gene: SHQ1: Added comment: Fourth family reported in PMID 36847845 with hypotonia and paroxysmal dyskinesia.; Changed publications: 34542157, 29178645, 36847845
Mendeliome v1.708 YWHAZ Zornitza Stark gene: YWHAZ was added
gene: YWHAZ was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: YWHAZ was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: YWHAZ were set to 36001342
Phenotypes for gene: YWHAZ were set to Intellectual disability, MONDO:0001071
Review for gene: YWHAZ was set to RED
Added comment: PMID:36001342 reported one large three-generation family with intellectual disability and global developmental delay, where all affected members were identified with a heterozygous missense variant (c.147A>T/ p.Lys49Asn) in YWHAZ gene. Although there were 10 other rare variants located in 10 genes (ARHGAP4, AGPS, APOL3, CES3, DACT2, ECH1, FAM71E2, KREMEN1, YWHAZ, ZFYVE26) that co-segregated with the ID/GDD phenotype were identified in the family, they were either not present in all affected members or present in unaffected members. In addition, computational modeling and knockdown/ knockin studies with Drosophila also confirmed the role of this YWHAZ variant in intellectual disability.
Sources: Literature
Mendeliome v1.703 ZNF143 Zornitza Stark gene: ZNF143 was added
gene: ZNF143 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ZNF143 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ZNF143 were set to 27349184
Phenotypes for gene: ZNF143 were set to Combined methylmalonic acidemia and homocystinuria, cblX like 1, MONDO:0002012, ZNF143-related
Review for gene: ZNF143 was set to RED
Added comment: Single individual reported with compound heterozygous variants.
Sources: Literature
Mendeliome v1.702 PLXND1 Achchuthan Shanmugasundram changed review comment from: 10 individuals including four foetal cases from five unrelated families were identified with biallelic variants in PLXND1 gene and they presented with cardiac defects. The most frequent defect is common arterial trunk (CAT), which is also known as truncus arteriosus, a conotruncal malformation characterized by a single vessel exiting both ventricles.

This gene has already been associated with PLXND1-related cardiac malformation syndrome with the confidence category of 'strong' in DD panel of Gene2Phenotype. However, no relevant phenotypes have been currently reported in OMIM.; to: 10 individuals including four foetal cases from five unrelated families were identified with biallelic variants in PLXND1 gene and they presented with cardiac defects. The most frequent defect is common arterial trunk (CAT), which is also known as truncus arteriosus, a conotruncal malformation characterized by a single vessel exiting both ventricles.

This gene has already been associated with PLXND1-related cardiac malformation syndrome with the confidence category of 'strong' in DD panel of Gene2Phenotype. However, no relevant phenotypes have been currently reported in OMIM.
Mendeliome v1.702 PLXND1 Achchuthan Shanmugasundram changed review comment from: 10 individuals including four foetal cases from five unrelated families were identified with biallelic variants in PLXND1 gene and they presented with cardiac defects. The most frequent defect is common arterial trunk (CAT), which is also known as truncus arteriosus, a conotruncal malformation characterized by a single vessel exiting both ventricles.; to: 10 individuals including four foetal cases from five unrelated families were identified with biallelic variants in PLXND1 gene and they presented with cardiac defects. The most frequent defect is common arterial trunk (CAT), which is also known as truncus arteriosus, a conotruncal malformation characterized by a single vessel exiting both ventricles.

This gene has already been associated with PLXND1-related cardiac malformation syndrome with the confidence category of 'strong' in DD panel of Gene2Phenotype. However, no relevant phenotypes have been currently reported in OMIM.
Mendeliome v1.701 CYB561 Zornitza Stark gene: CYB561 was added
gene: CYB561 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: CYB561 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CYB561 were set to 29343526; 31822578
Phenotypes for gene: CYB561 were set to Orthostatic hypotension 2, MIM# 618182
Review for gene: CYB561 was set to GREEN
Added comment: Three families reported.

Severe orthostatic hypotension, recurrent hypoglycemia, and low norepinephrine levels. The disorder has onset in infancy or early childhood.

Treatment: L-threo-3,4-dihydroxyphenylserine (droxidopa)
Sources: Expert Review
Mendeliome v1.697 SLC25A36 Krithika Murali gene: SLC25A36 was added
gene: SLC25A36 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SLC25A36 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLC25A36 were set to 34971397; 34576089; 31036718
Phenotypes for gene: SLC25A36 were set to Hyperinsulinemic hypoglycemia, familial, 8 - MIM#620211
Review for gene: SLC25A36 was set to GREEN
Added comment: Solute carrier family 25 members 33 (SLC25A33) and 36 (SLC25A36) are the only known mitochondrial pyrimidine nucleotide carriers in humans

PMID: 34971397 Sharoor et al 2022 report 2 siblings with hyperinsulinism, hypoglycemia and hyperammonemia from early infancy with homozygous SLC25A36 c.284 + 3 A > T variant identified through WES. Functional studies support LoF.

PMID: 34576089 report a 12-year-old patient with hypothyroidism, hyperinsulinism, hyperammonemia, chronical obstipation, short stature, along with language and general developmental delay. WES identified SLC25A36 gene homozygous c.803dupT, p.Ser269llefs*35 variant. Functional analysis of mutant SLC25A36 protein in proteoliposomes showed a virtually abolished transport activity. Immunoblotting results suggest that the mutant SLC25A36 protein in the patient undergoes fast degradation. Supplementation with uridine lead to some improvement in clinical course.

PMID: 31036718 deficiencies in SLC25A36 in mouse embryonic stem cells have been associated with mtDNA depletion as well as mitochondrial dysfunction
Sources: Literature
Mendeliome v1.689 LGR4 Elena Savva changed review comment from: PMID: 36538378 - hom canonical splice variant in an infant with failure to thrive, severe salt-wasting crises associated with isolated hypoaldosteronism, nail anomalies, short stature, and deafness. Multiple affected siblings but all deceased, two normal siblings found to be het or wildtype. Functional studies proved INFRAME exon 6 skipping, patients cell shad minimal protein.
Conditional K/O mouse model showed reduced expression of Wnt target genes, adrenal hypoplasia and aberrant zonal differentiation

gnomAD: no hom PTCs

PMID: 32493844 - 6 patients with delayed puberty, supported by functional studies on mice displaying impaired Wnt/β-catenin signaling. Recurring missense p.G363C present in 4/6 families, but super common in the population (67 homozygotes).; to: PMID: 36538378 - hom canonical splice variant in an infant with failure to thrive, severe salt-wasting crises associated with isolated hypoaldosteronism, nail anomalies, short stature, and deafness. Multiple affected siblings but all deceased, two normal siblings found to be het or wildtype. Functional studies proved INFRAME exon 6 skipping, patients cell shad minimal protein.
Conditional K/O mouse model showed reduced expression of Wnt target genes, adrenal hypoplasia and aberrant zonal differentiation

gnomAD: no hom PTCs

PMID: 32493844 - 6 patients with delayed puberty, supported by functional studies on mice displaying impaired Wnt/β-catenin signaling. Recurring missense p.G363C present in 4/6 families, but super common in the population (67 homozygotes).
Mendeliome v1.689 LGR4 Elena Savva edited their review of gene: LGR4: Added comment: PMID: 36538378 - hom canonical splice variant in an infant with failure to thrive, severe salt-wasting crises associated with isolated hypoaldosteronism, nail anomalies, short stature, and deafness. Multiple affected siblings but all deceased, two normal siblings found to be het or wildtype. Functional studies proved INFRAME exon 6 skipping, patients cell shad minimal protein.
Conditional K/O mouse model showed reduced expression of Wnt target genes, adrenal hypoplasia and aberrant zonal differentiation

gnomAD: no hom PTCs

PMID: 32493844 - 6 patients with delayed puberty, supported by functional studies on mice displaying impaired Wnt/β-catenin signaling. Recurring missense p.G363C present in 4/6 families, but super common in the population (67 homozygotes).; Changed publications: PMID: 32493844, 36538378; Changed phenotypes: {Bone mineral density, low, susceptibility to} MIM#615311; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v1.684 ELOC Achchuthan Shanmugasundram gene: ELOC was added
gene: ELOC was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ELOC was set to Unknown
Publications for gene: ELOC were set to 35323939
Phenotypes for gene: ELOC were set to von Hippel-Lindau disease, MONDO:0008667; renal cell carcinoma, MONDO:0005086; retinal hemangioblastoma, MONDO:0003343
Review for gene: ELOC was set to RED
Added comment: Comment on gene classification: This gene should be rated red as there is only one case with germline variant found so far.

A female patient was identified with a germline de novo missense variant in ELOC gene (c.236A>G/ p.Tyr79Cys) and satisfied the clinical diagnostic criteria for von Hippel-Lindau (VHL) disease. The patient had left retinal haemangioblastomas, renal cell carcinomas, cyst of the right kidney, spinal haemangioblastoma, a haemangioblastoma at the cervicomedullary junction and Henoch-Schonlein purpura (PMID:35323939).

This is the only germline variant detected in ELOC gene and was associated with VHL so far. However, ~20 somatic ELOC variants have been reported to be associated with renal cell carcinomas so far.

This gene has not yet been associated with relevant phenotypes in OMIM or Gene2Phenotype.
Sources: Literature
Mendeliome v1.684 ATG4D Suliman Khan gene: ATG4D was added
gene: ATG4D was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ATG4D was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ATG4D were set to PMID: 36765070
Phenotypes for gene: ATG4D were set to neurodevelopmental disorder; Abnormal facial shape
Penetrance for gene: ATG4D were set to unknown
Review for gene: ATG4D was set to GREEN
Added comment: PMID: 36765070 reported three individuals from two unrelated families with a neurodevelopmental disorder characterized by speech and motor impairment with a similar facial gestalt comprising almond-shaped eyes, depressed nasal bridge, and a prominent Cupid’s bow with variable disease severity and progression. NGS analysis revealed bi-allelic loss-of-function variants in ATG4D gene. Based on the clinical, bioinformatic, and functional data, the author concluded that bi-allelic loss-of-function variants in ATG4D contribute to the pathogenesis of syndromic neurodevelopmental disorder.
Sources: Literature
Mendeliome v1.682 TRPM3 Zornitza Stark edited their review of gene: TRPM3: Added comment: Publications 25090642; 33484482: Single multi-generational family reported with a missense variant in this gene and cataract. Mouse model of same variant supports association. Amber for this association.; Changed publications: 31278393, 25090642, 33484482; Changed phenotypes: Neurodevelopmental disorder with hypotonia, dysmorphic facies, and skeletal anomalies, with or without seizures, MIM# 620224, Cataract 50 with or without glaucoma, MIM#620253
Mendeliome v1.680 PPM1K Zornitza Stark edited their review of gene: PPM1K: Added comment: PMID: 36706222 reported a patient with MSUD with mild findings and elevated BCAA levels carrying a novel homozygous start-loss variant in PPM1K; Changed rating: AMBER; Changed publications: 23086801, 36706222
Mendeliome v1.676 CST6 Zornitza Stark gene: CST6 was added
gene: CST6 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CST6 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CST6 were set to 30425301; 36371786
Phenotypes for gene: CST6 were set to Ectodermal dysplasia 15, hypohidrotic/hair type MIM#618535
Review for gene: CST6 was set to GREEN
Added comment: Two families reported and functional data.
Sources: Literature
Mendeliome v1.667 STAT6 Zornitza Stark gene: STAT6 was added
gene: STAT6 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: STAT6 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: STAT6 were set to 36216080; 36758835
Phenotypes for gene: STAT6 were set to Allergic disease, MONDO:0005271, STAT6-related; early-onset multiorgan allergies
Review for gene: STAT6 was set to GREEN
Added comment: Two families reported with GoF variants and extensive functional data.
Sources: Literature
Mendeliome v1.665 LTV1 Achchuthan Shanmugasundram gene: LTV1 was added
gene: LTV1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: LTV1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: LTV1 were set to 34999892
Phenotypes for gene: LTV1 were set to Inflammatory poikiloderma with hair abnormalities and acral keratoses, OMIM:620199
Review for gene: LTV1 was set to AMBER
Added comment: Comment on classification of gene: This gene should be rated amber as it has been implicated in inflammatory poikiloderma with hair abnormalities and acral keratoses as identified from two unrelated families harbouring the same biallelic variant and supported by functional studies.

PMID:34999892 reported four UK women of South Asian origin (three Pakistani sisters and an unrelated Indian woman) identified with homozygous variant c.503A>G, (p.Asn168Ser) and presented with poikiloderma, hair abnormalities, and acral keratoses, which the authors named as inflammatory poikiloderma with hair abnormalities and acral keratoses (IPHAK).

Both in silico modelling and splicing assays from a patient sample showed that this variant is responsible for splicing defects and defects in LTV1 alter the export of nascent ribosomal subunits to the cytoplasm in yeast.

This gene has already been associated with relevant phenotype (MIM #620199) in OMIM, but not in Gene2Phenotype.
Sources: Literature
Mendeliome v1.665 WNT11 Achchuthan Shanmugasundram gene: WNT11 was added
gene: WNT11 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: WNT11 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: WNT11 were set to 34875064
Phenotypes for gene: WNT11 were set to osteoporosis, MONDO:0005298; osteoarthritis, MONDO:0005178; recurrent fractures
Review for gene: WNT11 was set to GREEN
Added comment: Comment on gene classification: The rating of this gene can be added as green as this gene has been implicated in early-onset osteoporosis from three unrelated cases and was supported by evidence from functional studies. All three patients harboured heterozygous variants in WNT11 gene.

Three unrelated cases are reported in PMID: 34875064. A four year-old boy harbouring de novo heterozygous loss-of-function variant c.677_678dupGG (p.Leu227Glyfs*22) was reported with low BMD, osteopenia and several fractures.

A 51 year-old woman and her 69 year-old mother were identified with a heterozygous missense variant c.217G>A (p.Ala73Thr). The woman was reported with bone fragility, several fractures, osteoarthritis and osteoporosis, while her mother also had several osteoporotic fractures.

A 61 year-old woman that was reported with lumbar spine osteoarthritis had several fractures since 55 years of age was identified with a heterozygous missense variant c.865G>A (p.Val289Met).

This was also supported by results from functional studies, where cell lines with the loss-of-function variant generated by CRISPR-Cas9 showed reduced cell proliferation and osteoblast differentiation in comparison to wild-type. The expression of genes in the Wnt canonical and non-canonical pathways was inhibited in these mutant cells.

This gene has not yet been reported with any phenotypes either in OMIM or in G2P.
Sources: Literature
Mendeliome v1.649 ASNA1 Naomi Baker gene: ASNA1 was added
gene: ASNA1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ASNA1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ASNA1 were set to 31461301; 16797549
Phenotypes for gene: ASNA1 were set to Dilated cardiomyopathy, MONDO:0001644, ASNA1-related
Review for gene: ASNA1 was set to RED
Added comment: Two siblings reported with biallelic variants - there were two variants on the paternal allele (c.867C>G p.(Cys289Trp) and c.913C>T p.(Gln305*)) and one variant on the maternal allele (c.488T>C p.(Val163Ala)). Unaffected sibling was heterozygous for maternal allele. Western blotting demonstrated reduced protein expression. Knockout of asna1 in zebrafish mode resulted in cardiac defects and early lethality. The Asna1 knockout mice displayed early embryonic lethality, consistent with a role of Asna1 in early embryonic development.
Sources: Literature
Mendeliome v1.648 SPTSSA Seb Lunke gene: SPTSSA was added
gene: SPTSSA was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SPTSSA was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: SPTSSA were set to 36718090
Phenotypes for gene: SPTSSA were set to complex hereditary spastic paraplegia, MONDO:0015150
Review for gene: SPTSSA was set to AMBER
Added comment: Three unrelated individuals with common neurological features of developmental delay, progressive motor impairment, progressive lower extremity spasticity, and epileptiform activity or seizures. Other additional features varied.

Two of the individuals had the same de-novo missense, Thr51Ile, while the third was homozygous for a late truncating variant, Gln58AlafsTer10. The patient with the hom variant was described as less severe.

Functional studies in fibroblasts showed dysregulation of the sphingolipid (SL) synthesis pathway, showing that both variants impair ORMDL regulation of the pathway leading to various levels of increased SL. Over expression of human SPTSSA was shown to lead to motor development in flies, rescued by expression of ORMDL for WT SPTSSA but not mutant SPTSSA.

The de-novo missense were shown to impact regulation more than the hom truncation, while the truncated region was shown to previously to be important for ORMDL regulation.

Mice with a hom KO of the functional equivalent sptssb had early onset ataxia and died prematurely, with evidence of axonic degeneration.
Sources: Literature
Mendeliome v1.635 MIR145 Lucy Spencer gene: MIR145 was added
gene: MIR145 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MIR145 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: MIR145 were set to 36649075
Phenotypes for gene: MIR145 were set to multisystemic smooth muscle dysfunction syndrome (MONDO:0013452), MIR145-related
Review for gene: MIR145 was set to RED
Added comment: PMID: 36649075- a patient whose fetal ultrasound revealed polyhydramnios, enlarged abdomenand bladder, and prune belly syndrome. During infancy/childhood profound gastrointestinal dysmotility, cerebrovascular disease, and multiple strokes. Described as a multisystemic smooth muscle dysfunction syndrome. Patient was found to have a de novo SNP in MIR145 NR_029686.1:n.18C>A. The MIR145transcript is processed into two microRNAs, with the variant position at nucleotide 3 of miR-145-5p.

Transfection of an siRNA against mutant miR145-5p induced a notable decrease in the expression of several cytoskeletal proteins including transgelin, calponin, and importantly, smooth muscle actin. Hybridization analysis and miR RNA-seq demonstrated a decrease in expression of miR145-5p in the presence of mutant miR145-5p. RNA-seq showed that the differentially expressed genes were substantially different between patient and control fibroblasts.
Sources: Literature
Mendeliome v1.632 CAMLG Manny Jacobs gene: CAMLG was added
gene: CAMLG was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CAMLG was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CAMLG were set to PMID: 35262690
Phenotypes for gene: CAMLG were set to Congenital disorder of glycosylation type IIz, 620201
Penetrance for gene: CAMLG were set to unknown
Review for gene: CAMLG was set to RED
Added comment: PMID: 35262690 (2022)
Report one patient with hom splice variant. No other reported patients.
GDD, seizures, contractures, hypotonia and brain malformations.
Sources: Literature
Mendeliome v1.630 TRU-TCA1-1 Paul De Fazio gene: TRU-TCA1-1 was added
gene: TRU-TCA1-1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TRU-TCA1-1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TRU-TCA1-1 were set to 26854926; 34956927
Phenotypes for gene: TRU-TCA1-1 were set to Hyperthyroidism MONDO:0004425
Review for gene: TRU-TCA1-1 was set to AMBER
gene: TRU-TCA1-1 was marked as current diagnostic
Added comment: PMID 26854926: male 8 year old proband investigated for abdominal pain, fatigue, muscle weakness, and thyroid dysfunction (raised T4, normal T3, raised reverse T3) suggestive of impaired deiodinase activity in combination with low plasma selenium levels. Homozygosity mapping led to identification of a a single nucleotide change, C65G, in TRU-TCA1-1, a tRNA in the selenocysteine incorporation pathway. This mutation resulted in reduction in expression of stress-related selenoproteins. A methylribosylation defect at uridine 34 of mutant tRNA observed in patient cells was restored by cellular complementation with normal tRNA.

PMID 34956927: a 10 year old originally investigated for Hashimoto's disease was found to be homozygous for the same C65G variant identified in the previous paper, inherited from the father in what was concluded to be paternal isodisomy.
Sources: Literature
Mendeliome v1.628 CCDC84 Lucy Spencer gene: CCDC84 was added
gene: CCDC84 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CCDC84 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CCDC84 were set to 34009673
Phenotypes for gene: CCDC84 were set to Mosaic variegated aneuploidy syndrome 4 (MIM#620153)
Review for gene: CCDC84 was set to AMBER
Added comment: PMID: 34009673- patients with constitutional mosaic aneuploidy were found to have biallelic mutations in CENATAC(CCDC84). 2 adult siblings with mosaic aneuploidies, microcephaly, dev delay, and maculopathy. Both chet for a missense and a splice site deletion- but the paper days these both result in the creation of a novel splice site that leads to frameshifts and loss of the c-terminal 64 amino acids.

Gene is shown to be part of a spliceosome. CENATAC depletion or expression of disease mutants resulted in retention of introns in ~100 genes enriched for nucleocytoplasmic transport and cell cycle regulation, and caused chromosome segregation errors.

Functional analysis in CENATAC-depleted HeLa cells demonstrated chromosome congression defects and subsequent mitotic arrest, which could be fully rescued by wildtype but not mutant CENATAC. Expression of the MVA-associated mutants exacerbated the phenotype, suggesting that the mutant proteins dominantly repress the function of any residual wildtype protein.
Sources: Literature
Mendeliome v1.625 NPTX1 Ain Roesley gene: NPTX1 was added
gene: NPTX1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NPTX1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: NPTX1 were set to 34788392; 35288776; 35285082; 35560436
Phenotypes for gene: NPTX1 were set to cerebellar ataxia MONDO#0000437, NPTX1-related
Review for gene: NPTX1 was set to GREEN
gene: NPTX1 was marked as current diagnostic
Added comment: PMID:34788392
5 families with multigenerational segregations - late onset ataxia
4 families with p.(Gly389Arg) + 1x p.(Glu327Gly)
functional studies done

Note: case report of a family member published elsewhere (PMID:35288776)

PMID:35285082
1x de novo in a male with late-onset, slowly progressive cerebellar ataxia, oculomotor apraxia, choreiform dyskinesias, and cerebellar cognitive affective syndrome
p.(Arg143Leu)

PMID:35560436
1x de novo in a female with early-onset ataxia and cerebellar atrophy since infancy
p.(Gln370Arg)
Sources: Literature
Mendeliome v1.611 FGF13 Zornitza Stark edited their review of gene: FGF13: Added comment: PMID 34184986: 3 individuals reported with moderate to severe ID and maternally inherited 5' variant c.-32C-G; Changed publications: 33245860, 34184986
Mendeliome v1.607 NAE1 Zornitza Stark gene: NAE1 was added
gene: NAE1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NAE1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NAE1 were set to 36608681
Phenotypes for gene: NAE1 were set to Neurodevelopmental disorder, MONDO:0700092, NAE1-related
Review for gene: NAE1 was set to GREEN
Added comment: Four individuals reported with bi-allelic variants and intellectual disability, ischiopubic hypoplasia, stress-mediated lymphopenia and neurodegeneration.
Sources: Literature
Mendeliome v1.589 ARHGEF38 Paul De Fazio gene: ARHGEF38 was added
gene: ARHGEF38 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ARHGEF38 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: ARHGEF38 were set to 36493769
Phenotypes for gene: ARHGEF38 were set to Cleft lip/palate MONDO:0016044, ARHGEF38-related
Review for gene: ARHGEF38 was set to AMBER
gene: ARHGEF38 was marked as current diagnostic
Added comment: PMID:36493769 identified an intragenic deletion by high-res microarray of the same exon (exon 3) in 4 individuals with non-syndromic cleft lip/palate. Deletion of exon 3 is present in 6 individuals in gnomAD. Inheritance information was not available.

Knockdown and knockout of the gene in Xenopus and Zebrafish resulted in craniofacial malformations in a large proportion (but not 100%) of embryos.
Sources: Literature
Mendeliome v1.588 COBLL1 Paul De Fazio gene: COBLL1 was added
gene: COBLL1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: COBLL1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: COBLL1 were set to 36493769
Phenotypes for gene: COBLL1 were set to Cleft lip/palate MONDO:0016044, COBLL1-related
gene: COBLL1 was marked as current diagnostic
Added comment: PMID:36493769 identified the same multi-exon intragenic deletion by high-res microarray in 3 individuals with non-syndromic cleft lip/palate. The deletion is absent from gnomAD. Inheritance information was only available for 1 individual, in whom it was inherited from an unaffected father. Note that the gene is not quite LOF constrained in gnomAD.

Knockdown and knockout of the gene in Xenopus and Zebrafish resulted in craniofacial malformations in a large proportion (but not 100%) of embryos.
Sources: Literature
Mendeliome v1.588 EIF4A2 Dean Phelan gene: EIF4A2 was added
gene: EIF4A2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: EIF4A2 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: EIF4A2 were set to PMID: 36528028
Phenotypes for gene: EIF4A2 were set to Neurodevelopmental disorder (MONDO:0700092), EIF4A2-related
Mode of pathogenicity for gene: EIF4A2 was set to Other
Review for gene: EIF4A2 was set to GREEN
Added comment: PMID: 36528028
- EIF4A2 variants were observed in 15 individuals from 14 families. Affected individuals had a range of symptoms including global developmental delay (9/15), ID (7/15), epilepsy (11/15) and structural brain alterations (10/15). Monoallelic and biallelic variants were reported and functional studies showed both LOF and GOF disease mechanisms.
Sources: Literature
Mendeliome v1.583 OXGR1 Sarah Pantaleo gene: OXGR1 was added
gene: OXGR1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: OXGR1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: OXGR1 were set to PMID:35671463
Phenotypes for gene: OXGR1 were set to Nephrolithiasis/nephrocalcinosis MONDO:0008171, OXGR1-related
Penetrance for gene: OXGR1 were set to unknown
Review for gene: OXGR1 was set to AMBER
Added comment: Candidate disease gene for human calcium oxalate nephrolithiasis.

Performed exome sequencing and directed sequencing of the OXGR1 locus in a worldwide nephrolithiasis/nephrocalcinosis (NL/NC) cohort, and putatively deleterious rare OXGR1 variants were functionally characterised.

A heterozygous OXGR1 missense variant (c.371T>G; p.Leu124Arg) co-segregated with calcium oxalate NL and/or NC disease in an autosomal dominant inheritance pattern within a multi-generational family with five affected individuals.

Interrogation of the OXGR1 locus in 1,107 additional NL/NC families identified five additional deleterious dominant variants in five families with calcium oxalate NL/NC. Rare, potentially deleterious OXGR1 variants were enriched in NL/NC subjects relative to ExAC controls. Four missense variants and one frameshift variant.

Four of five NL/NC-associated missense variants revealed impaired AKG-dependent calcium ion uptake, demonstrating loss of function.

Rare, dominant loss-of-function OXGR1 variants are associated with recurrent calcium oxalate NL/NC disease. Six potentially deleterious variants were identified in six of 1,108 NL/NC families (0.54%).

Limitations: only probands were able to be recruited for four of six families. In the future, it will be important to determine whether any of the affected family members share the identified OXGR1 variant. They also observe OXGR1 variants in 0.16% of ExAC subjects (selected on the basis of the absence of paediatric disease).
Sources: Literature
Mendeliome v1.580 CCIN Chern Lim gene: CCIN was added
gene: CCIN was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CCIN was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CCIN were set to 36546111; 36527329
Phenotypes for gene: CCIN were set to Teratozoospermia
Review for gene: CCIN was set to GREEN
gene: CCIN was marked as current diagnostic
Added comment: Two papers with three unrelated patients with teratozoospermia:

PMID: 36546111
- Two families reported: One with homozygous missense (fam is consanguineous) and another with compound heterozygous missense + nonsense variants, patients suffering from teratozoospermia.
- Homozygous CcinH42L/H42L and compound heterozygous CcinR432W/C447* knock-in mice generated. Spermatozoa from homozygous male mice exhibited abnormalities of sperm head shape revealed by Diff-Quick staining. When mated with WT mice, both homozygous CcinH42L/H42L and compound heterozygous CcinR432W/C447* male mice were infertile, whereas the mutant female mice could generate offspring and displayed no defects in fertility.

PMID: 36527329
- One consanguineous family reported: homozygous missense, with asthenoteratozoospermia.
- Transfected HEK cells showed reduced CCIN protein level.
Sources: Literature
Mendeliome v1.573 TUFT1 Zornitza Stark gene: TUFT1 was added
gene: TUFT1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TUFT1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TUFT1 were set to https://doi.org/10.1093/bjd/ljac026
Phenotypes for gene: TUFT1 were set to Ectodermal dysplasia, MONDO:0019287, TUFT1-related
Review for gene: TUFT1 was set to AMBER
Added comment: 9 individuals from three families reported with woolly hair and skin fragility. One of the variants, c.60+1G>A was present in two of the families, founder effect demonstrated by haplotype analysis. Another loss of function variant present in the third family. Some functional data but mostly expression studies.
Sources: Literature
Mendeliome v1.572 ZMYM3 Belinda Chong gene: ZMYM3 was added
gene: ZMYM3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ZMYM3 was set to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Publications for gene: ZMYM3 were set to 36586412; 24721225
Phenotypes for gene: ZMYM3 were set to Neurodevelopmental disorders (NDDs)
Review for gene: ZMYM3 was set to GREEN
Added comment: PMID: 36586412
Using the MatchMaker Exchange - Described 27 individuals with rare, variation in the ZMYM3. Most individuals were males, 17 of which have a maternally inherited variant; six individuals (4 male, 2 female) with de novo variants.
Overlapping features included developmental delay, intellectual disability, behavioural abnormalities, and a specific facial gestalt in a subset of males.
Variants in almost all individuals are missense, including six that recurrently affect two residues. Four unrelated probands were identified with inherited variation affecting Arg441 (R441W), a site at which variation has been previously seen in NDD-affected siblings (24721225), and two individuals have de novo variation resulting in p.Arg1294Cys (c.3880C>T).
ChIP-seq experiments on one variant, p.Arg1274Trp, indicate dramatically reduced genomic occupancy, supporting a hypomorphic effect.
Sources: Literature
Mendeliome v1.569 GOSR2 Zornitza Stark edited their review of gene: GOSR2: Added comment: PMIDs 29855340; 33639315: at least three families reported with a muscular dystrophy presentation as well as seizures.; Changed publications: 21549339, 24458321, 30363482, 29855340, 33639315; Changed phenotypes: Epilepsy, progressive myoclonic 6 , MIM#614018, Muscular dystrophy, congenital, with or without seizures, MIM# 620166
Mendeliome v1.565 TSPEAR Zornitza Stark edited their review of gene: TSPEAR: Added comment: More than 5 individuals reported with selective tooth agenesis.; Changed rating: GREEN; Changed publications: 30046887, 32112661, 34042254; Changed phenotypes: Selective tooth agenesis-10 (STHAG10), MIM#620173; Changed mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v1.563 CDK5 Zornitza Stark edited their review of gene: CDK5: Added comment: Upgraded to Amber following GenCC discrepancy resolution: single family with four affected individuals but extensive supportive experimental evidence including mouse models.; Changed rating: AMBER; Changed publications: 25560765, 32273484, 32097629, 28854363, 7490100
Mendeliome v1.563 SLC26A6 Arina Puzriakova gene: SLC26A6 was added
gene: SLC26A6 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SLC26A6 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: SLC26A6 were set to 35115415; 21170874; 32660969
Phenotypes for gene: SLC26A6 were set to Enteric hyperoxaluria and nephrolithiasis
Added comment: Cornière et al. 2022 (PMID: 35115415) identified a single family with a heterozygous missense VUS (c.1519C>T/p.R507W) in the SLC26A6 gene. However, the variant was found in 5 out of 280 674 alleles reported in gnomAD (Europeans and South Asians). In vitro studies showed that the variant affects both SLC26A6 transport activity and membrane surface expression, in turn reducing Cl− dependant oxalate transport. Cotransfection studies indicated a dominant-negative effect on WT. Slc26a6 null mice similarly displayed hyperoxalemia and hyperoxaluria which were caused by defective intestinal back-secretion of dietary oxalate (PMID: 21170874; 32660969)

SLC26A6 is currently not associated with any human phenotype in OMIM or G2P.
Sources: Literature
Mendeliome v1.553 RPS15 Zornitza Stark gene: RPS15 was added
gene: RPS15 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: RPS15 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RPS15 were set to 19061985
Phenotypes for gene: RPS15 were set to Diamond-Blackfan anaemia
Review for gene: RPS15 was set to RED
Added comment: Single individual reported in 2008, no reports since.
Sources: Expert Review
Mendeliome v1.547 IL2RB Zornitza Stark changed review comment from: Five families reported.
Sources: Expert list; to: Five families reported.

Affected individuals present in infancy with features of both abnormal activation of certain immune signaling pathways, resulting in lymphoid proliferation, dermatitis, enteropathy, and hypergammaglobulinemia, as well as features of immunodeficiency, such as recurrent infections and increased susceptibility to viral infections, especially CMV. Laboratory studies show increased NK cells that show impaired differentiation, as well as abnormal T cell populations or responses. Some patients may die in childhood; hematopoietic bone marrow transplantation is curative.

Sources: Expert list
Mendeliome v1.541 TNNC2 Zornitza Stark gene: TNNC2 was added
gene: TNNC2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TNNC2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: TNNC2 were set to 33755597
Phenotypes for gene: TNNC2 were set to Congenital myopathy, MONDO:0019952, TNNC2-related
Review for gene: TNNC2 was set to GREEN
Added comment: Two families reported: Family 1: 4 individuals, three generations; missense variant p.(Asp34Tyr) Family 2: de novo variant, missense p.(Met79Ile)

Physiological studies in myofibers isolated from patients’ biopsies revealed a markedly reduced force response of the sarcomeres to [Ca2+]. This pathomechanism was further confirmed in experiments in which contractile dysfunction was evoked by replacing TnC in myofibers from healthy control subjects with recombinant, mutant TnC. Conversely, the contractile dysfunction of myofibers from patients was repaired by replacing endogenous, mutant TnC with recombinant, wild-type TnC.

Borderline Green: sufficient segregation in Fam 1 plus de novo status in Fam 2, plus functional data.
Sources: Literature
Mendeliome v1.538 CHUK Zornitza Stark edited their review of gene: CHUK: Added comment: PMID 34533979: single individual reported with homozygous missense variant in this gene and recurrent infections, skeletal abnormalities, absent secondary lymphoid structures, reduced B cell numbers, hypogammaglobulinemia, and lymphocytic infiltration of intestine. Supportive functional data.; Changed publications: 25691407, 20961246, 10195895, 10195896, 29523099, 28513979, 34533979
Mendeliome v1.535 IRF7 Zornitza Stark edited their review of gene: IRF7: Added comment: Additional individuals reported PMIDs 35986347, 35670811: total of 7; Changed publications: 25814066, 15800576, 35986347, 35670811
Mendeliome v1.530 MPC2 Zornitza Stark gene: MPC2 was added
gene: MPC2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MPC2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MPC2 were set to 36417180
Phenotypes for gene: MPC2 were set to mitochondrial pyruvate carrier deficiency, MONDO:0013877, MPC2-related
Review for gene: MPC2 was set to AMBER
Added comment: Four patients from two unrelated consanguineous families reported with homozygous variants (missense and stop-loss). Siblings from family 1 were diagnosed prenatally with diffuse subcutaneous oedema, cardiomegaly, corpus callosum agenesis, ventriculomegaly and hypoplasia of the cerebellum. Siblings from family 2 had slightly different presentations, which included anoxo-ischemic encephalopathy, isolated dyspnea, neonatal respiratory distress, neonatal jaundice, hypotonia, visual impairment, microcephaly; both siblings had severe delayed psychomotor development. Immunoblot analysis of protein expression in lysates from patient-derived fibroblasts demonstrated reduced MPC1 and MPC2 protein levels.
Sources: Literature
Mendeliome v1.515 DCLRE1B Zornitza Stark edited their review of gene: DCLRE1B: Added comment: Three additional families reported.; Changed rating: GREEN; Changed publications: 20479256, 21647296, 35007328
Mendeliome v1.511 NPC1 Naomi Baker gene: NPC1 was added
gene: NPC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NPC1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NPC1 were set to 36417180
Phenotypes for gene: NPC1 were set to mitochondrial pyruvate carrier deficiency, MONDO:0013877, MPC2-related
Review for gene: NPC1 was set to AMBER
Added comment: Four patients from two unrelated consanguineous families reported with homozygous variants (missense and stop-loss). Siblings from family 1 were diagnosed prenatally with diffuse subcutaneous oedema, cardiomegaly, corpus callosum agenesis, ventriculomegaly and hypoplasia of the cerebellum. Siblings from family 2 had slightly different presentations, which included anoxo-ischemic encephalopathy, isolated dyspnea, neonatal respiratory distress, neonatal jaundice, hypotonia, visual impairment, microcephaly; both siblings had severe delayed psychomotor development. Immunoblot analysis of protein expression in lysates from patient-derived fibroblasts demonstrated reduced MPC1 and MPC2 protein levels.
Sources: Literature
Mendeliome v1.507 GABRA3 Sarah Pantaleo gene: GABRA3 was added
gene: GABRA3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GABRA3 was set to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Publications for gene: GABRA3 were set to PMID: 29053855
Phenotypes for gene: GABRA3 were set to Epilepsy, intellectual disability, dysmorphic features,
Penetrance for gene: GABRA3 were set to Incomplete
Review for gene: GABRA3 was set to GREEN
Added comment: Six variants in GABRA3 encoding the alpha3-subunit of the GABA(A) receptor.
Five missense variants and one micro duplication were detected in four families and two sporadic cases presenting with a range of epileptic seizure types, a varying degree of intellectual disability and developmental delay, sometimes with dysmorphic features or nystagmus.
The variants co-segregated mostly but not completely with the phenotype in the families, indicating in some cases incomplete penetrance, involvement of other genes, or presence of phenocopies.
Overall, males were more severely affected and there were three asymptomatic female mutation carriers compared to only one male without a clinical phenotype.
Mechanism suggested - three detected missense variants are localised in the extracellular GABA-binding NH2-terminus, one in the M2-M3 linker and one in the M4 transmembrane segment of the alpha3-subunit. Functional studies in Xenopus leaves oocytes revealed a variable but significant reduction of GABA-evoked anion currents for all mutants compared to wild-type receptors. The degree of current reduction correlated partially with the phenotype.
Results reveal that rare loss-of-function variants in GABRA3 increase the risk for a varying combination of epilepsy, intellectual disability/developmental delay and dysmorphic features, presenting in some pedigrees with an X-linked inheritance pattern.
Sources: Literature
Mendeliome v1.505 TCEAL1 Melanie Marty changed review comment from: 7 individuals (males and females) with de novo variants involving TCEAL1 with an X-linked
dominant neurodevelopmental syndrome. Individuals had hypotonia, abnormal gait, developmental delay/intellectual disability especially affecting expressive language, autistic-like behavior, and mildly dysmorphic facial features. Additional features included strabismus, refractive errors, variable nystagmus, gastroesophageal reflux, constipation, dysmotility, recurrent infections, seizures, and structural brain anomalies.

1 additional male individual with a maternally inherited missense variant (unaffected mother), which was considered a VUS. This individual had hypertonia and spasticity without syndromic features.

4 PTCs, 2 CNVs, 2 missense reported.
Sources: Literature; to: 7 individuals (males and females) with de novo variants involving TCEAL1 with an X-linked
dominant neurodevelopmental syndrome. Individuals had hypotonia, abnormal gait, developmental delay/intellectual disability especially affecting expressive language, autistic-like behavior, and mildly dysmorphic facial features. Additional features included strabismus, refractive errors, variable nystagmus, gastroesophageal reflux, constipation, dysmotility, recurrent infections, seizures, and structural brain anomalies.

1 additional male individual with a maternally inherited missense variant (unaffected mother), which was considered a VUS. This individual had hypertonia and spasticity without syndromic features.

4 PTCs, 2 CNVs, 2 missense reported.
Sources: Literature
Mendeliome v1.504 TCEAL1 Melanie Marty changed review comment from: 7 individuals (males and females) with de novo variants involving TCEAL1 with an X-linked
dominant neurodevelopmental syndrome. Individuals had hypotonia, abnormal gait, developmental delay/intellectual disability especially affecting expressive language, autistic-like behavior, and mildly dysmorphic facial features. Additional features included strabismus, refractive errors, variable nystagmus, gastroesophageal reflux, constipation, dysmotility, recurrent infections, seizures, and structural brain anomalies.

1 additional male individual with a maternally inherited missense variant (unaffected mother), which was considered a VUS. This individual had hypertonia and spasticity without syndromic features.

4 PTCs, 2 CNVs, 2 missense reported.
Sources: Literature; to: 7 individuals (males and females) with de novo variants involving TCEAL1 with an X-linked
dominant neurodevelopmental syndrome. Individuals had hypotonia, abnormal gait, developmental delay/intellectual disability especially affecting expressive language, autistic-like behavior, and mildly dysmorphic facial features. Additional features included strabismus, refractive errors, variable nystagmus, gastroesophageal reflux, constipation, dysmotility, recurrent infections, seizures, and structural brain anomalies.

1 additional male individual with a maternally inherited missense variant (unaffected mother), which was considered a VUS. This individual had hypertonia and spasticity without syndromic features.

4 PTCs, 2 CNVs, 2 missense reported.
Sources: Literature
Mendeliome v1.504 TCEAL1 Melanie Marty changed review comment from: 7 individuals (males and females) with de novo variants involving TCEAL1. Individuals had hypotonia, abnormal gait, developmental delay/intellectual disability especially affecting expressive language, autistic-like behavior, and mildly dysmorphic facial features. Additional features included strabismus, refractive errors, variable nystagmus, gastroesophageal reflux, constipation, dysmotility, recurrent infections, seizures, and structural brain anomalies.

1 additional male individual with a maternally inherited missense variant (unaffected mother), which was considered a VUS. This individual had hypertonia and spasticity without syndromic features.

4 PTCs, 2 CNVs, 2 missense reported.
Sources: Literature; to: 7 individuals (males and females) with de novo variants involving TCEAL1 with an X-linked
dominant neurodevelopmental syndrome. Individuals had hypotonia, abnormal gait, developmental delay/intellectual disability especially affecting expressive language, autistic-like behavior, and mildly dysmorphic facial features. Additional features included strabismus, refractive errors, variable nystagmus, gastroesophageal reflux, constipation, dysmotility, recurrent infections, seizures, and structural brain anomalies.

1 additional male individual with a maternally inherited missense variant (unaffected mother), which was considered a VUS. This individual had hypertonia and spasticity without syndromic features.

4 PTCs, 2 CNVs, 2 missense reported.
Sources: Literature
Mendeliome v1.504 FEM1C Paul De Fazio gene: FEM1C was added
gene: FEM1C was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FEM1C was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: FEM1C were set to 36336956; 28135719; 33398170; 33398168
Phenotypes for gene: FEM1C were set to Neurodevelopmental disorder, FEM1C-related MONDO:0700092
Review for gene: FEM1C was set to GREEN
gene: FEM1C was marked as current diagnostic
Added comment: PMID:36336956 describes a 9-year-old boy with severe DD, lack of speech, pyramidal signs, and limb ataxia who had a de novo missense variant Asp126His in FEM1C ascertained by WES. The equivalent variant introduced into the nematode C.elegans resulted in disabled locomotion caused by synaptic abnormalities and not muscle dysfunction.

An alternate change Asp126Val was reported in the DDD study de novo in a patient with uncharacterised developmental delay (PMID:28135719).

The Asp126 residue (but not either of the variants above specifically) was shown to be functionally important by in vitro studies (PMID:33398170;33398168). The residue is highly conserved and located in a region of missense constraint.

Borderline green, 2 patients and an animal model. Note all evidence points to the Asp126 residue being of specific importance.
Sources: Literature
Mendeliome v1.504 TCEAL1 Melanie Marty gene: TCEAL1 was added
gene: TCEAL1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TCEAL1 was set to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Publications for gene: TCEAL1 were set to PMID: 36368327
Phenotypes for gene: TCEAL1 were set to hypotonia, abnormal gait, developmental delay, intellectual disability, autism, dysmorphic facial features.
Review for gene: TCEAL1 was set to GREEN
Added comment: 7 individuals (males and females) with de novo variants involving TCEAL1. Individuals had hypotonia, abnormal gait, developmental delay/intellectual disability especially affecting expressive language, autistic-like behavior, and mildly dysmorphic facial features. Additional features included strabismus, refractive errors, variable nystagmus, gastroesophageal reflux, constipation, dysmotility, recurrent infections, seizures, and structural brain anomalies.

1 additional male individual with a maternally inherited missense variant (unaffected mother), which was considered a VUS. This individual had hypertonia and spasticity without syndromic features.

4 PTCs, 2 CNVs, 2 missense reported.
Sources: Literature
Mendeliome v1.502 MAN2A2 Zornitza Stark gene: MAN2A2 was added
gene: MAN2A2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MAN2A2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MAN2A2 were set to 36357165
Phenotypes for gene: MAN2A2 were set to Congenital disorder of glycosylation, MONDO:0015286, MAN2A2-reated
Review for gene: MAN2A2 was set to RED
Added comment: Single consanguineous family reported with homozygous truncating variant in two brothers with ID. Supportive biochemical data only.
Sources: Literature
Mendeliome v1.489 PIGN Zornitza Stark edited their review of gene: PIGN: Added comment: Large cohort study of 21 new and review of 40 previously published cases in PMID 36322149

Biallelic-truncating variants were detected in 16 patients-10 with Fryns syndrome, 1 with MCAHS1, 2 with Fryns syndrome/MCAHS1, and 3 with neurologic phenotype. There was an increased risk of prenatal or neonatal death within this group (6 deaths were in utero or within 2 months of life; 6 pregnancies were terminated). Incidence of polyhydramnios, congenital anomalies (eg, diaphragmatic hernia), and dysmorphism was significantly increased. Biallelic missense or mixed genotype were reported in the remaining 45 cases-32 showed a neurologic phenotype and 12 had MCAHS1. No cases of diaphragmatic hernia or abdominal wall defects were seen in this group except patient 1 in which we found the missense variant p.Ser893Arg to result in functionally null alleles, suggesting the possibility of an undescribed functionally important region in the final exon.; Changed publications: 36322149; Changed phenotypes: Multiple congenital anomalies-hypotonia-seizures syndrome 1, MIM# 614080, MONDO:0013563, Fryns syndrome
Mendeliome v1.486 SPTAN1 Zornitza Stark edited their review of gene: SPTAN1: Added comment: PMID 36331550: further 31 individuals reported with mono-allelic variants. Three phenotypes observed:
1. DEE
2. Isolated DD/ID
3. HSP or ataxia; Changed publications: 20493457, 22258530, 32811770, 35150594, 34526651, 31515523, 36331550
Mendeliome v1.485 SEC16B Zornitza Stark gene: SEC16B was added
gene: SEC16B was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: SEC16B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SEC16B were set to 28375157; 28862642; 30652979
Phenotypes for gene: SEC16B were set to Polycystic liver disease (with or without kidney cysts), MONDO:0000447, SEC16B-related
Review for gene: SEC16B was set to AMBER
Added comment: Two unrelated individuals with limited supporting functional data reported. Assessed as LIMITED by ClinGen.
Sources: Expert Review
Mendeliome v1.480 AFDN Zornitza Stark gene: AFDN was added
gene: AFDN was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: AFDN was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: AFDN were set to 36384317
Phenotypes for gene: AFDN were set to Cleft lip/palate, MONDO:0016044, AFDN-related
Review for gene: AFDN was set to RED
Added comment: Over-representation of rare AFDN missense variants reported in a cohort of CL/P individuals of African and Brazilian origin. However, almost all of the variants reported have hets in gnomad. The one that is novel has alternative missense at the same aa position.
Sources: Literature
Mendeliome v1.478 FOXA2 Zornitza Stark edited their review of gene: FOXA2: Added comment: PMID 33999151: two further individuals reported.; Changed publications: 29329447, 28973288, 11445544, 33999151
Mendeliome v1.465 TPR Achchuthan Shanmugasundram gene: TPR was added
gene: TPR was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TPR was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TPR were set to 34494102
Phenotypes for gene: TPR were set to intellectual disability, MONDO:0001071; cerebellar ataxia, MONDO:0000437; microcephaly, MONDO:0001149
Review for gene: TPR was set to RED
Added comment: This gene should be added to the following diseases: Intellectual disability, microcephaly and ataxia.

Comment on classification of this gene: This gene should be added with a RED rating as the association is based on biallelic variants identified from a report of two siblings.

Two siblings harbouring variants c.6625C>T/ p.Arg2209Ter (identified in heterozygous state in both siblings and father) and c.2610 + 5G > A (identified in heterozygous state in both siblings and mother) were reported with ataxia, microcephaly and severe intellectual disability.

Functional analyses in patient fibroblasts provide evidence that the variants affect TPR splicing, reduce steady-state TPR levels, abnormal nuclear pore composition and density, and altered global RNA distribution.

This gene has not yet been associated with any phenotypes either in OMIM or in Gene2Phenotype.
Sources: Literature
Mendeliome v1.463 IRF2BP2 Zornitza Stark edited their review of gene: IRF2BP2: Added comment: Reports of additional patients: 4yo with chronic diarrhea, severe eczema, anemia, failure to thrive, fevers, short stature, recurrent infections, cataracts, hypodontia, hypotrichosis alopecia, hypogammaglobulinemia. The 33-year-old male presented with recurrent respiratory infections since childhood, colitis and RA beginning at age 25 years.; Changed rating: GREEN; Changed publications: 27016798, 32048120, 36193988, 33864888; Changed phenotypes: Immunodeficiency, common variable, 14, MIM# 617765
Mendeliome v1.462 ATP5F1 Zornitza Stark gene: ATP5F1 was added
gene: ATP5F1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: ATP5F1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ATP5F1 were set to 36239646
Phenotypes for gene: ATP5F1 were set to Hypermetabolism due to uncoupled mitochondrial oxidative phosphorylation-2 (HUMOP2), MIM#620085
Review for gene: ATP5F1 was set to RED
Added comment: Identical twins reported with a de novo missense variant in this gene and hyper metabolism: normal thyroid function, hyperphagia, tachypnea, increased basal temperature, and increased sweating. Biochemical studies demonstrated increased mitochondrial oxygen consumption with inefficient production of ATP in the final steps of oxidative phosphorylation due to an uncoupling defect
Sources: Expert list
Mendeliome v1.459 RPS6KB1 Arina Puzriakova gene: RPS6KB1 was added
gene: RPS6KB1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RPS6KB1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: RPS6KB1 were set to 34916228
Phenotypes for gene: RPS6KB1 were set to Hypertrophic cardiomyopathy
Review for gene: RPS6KB1 was set to GREEN
Added comment: Jain et al. 2022 (PMID: 34916228) reported on two unrelated HCM families with the same heterozygous missense RPS6KB1 variant (p.G47W), and subsequently three further unrelated probands with HCM harbouring distinct heterozygous variants (p.Q49K, p.Y62H, respectively). Variants segregated with disease, were predicted pathogenic by silico analyses and were ultrarare or absent in population databases. Functional studies in the HL-1 (mouse cardiomyocytes) cells showed that the patient-specific RPS6KB1 mutant significantly increased cell size and activated rpS6 and ERK1/2 signalling cascades. The relationship between RPS6KB1 and cardiac hypertrophy has also been explored in feline and mice models (PMID: 15226426; 17976640)
Sources: Literature
Mendeliome v1.455 ITPR3 Zornitza Stark edited their review of gene: ITPR3: Added comment: Additional family with 3 individuals in 2 generations reported in PMID 24627108.; Changed rating: GREEN; Changed publications: 32949214, 24627108; Changed phenotypes: Charcot-Marie-Tooth disease, demyelinating, type 1J, MIM# 620111
Mendeliome v1.442 MYCBP2 Suliman Khan gene: MYCBP2 was added
gene: MYCBP2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MYCBP2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MYCBP2 were set to PMID: 36200388
Phenotypes for gene: MYCBP2 were set to Neurodevelopmental disorder, MONDO:0700092, MYCBP2-related; corpus callosum abnormalities
Penetrance for gene: MYCBP2 were set to Complete
Review for gene: MYCBP2 was set to GREEN
Added comment: PMID: 36200388 reported eight patients with neurodevelopmental disorder including corpus callosum abnormalities, developmental delay, intellectual disability, epilepsy, and autistic features. Each patient harbored a de novo LOF variant in MYCBP2 gene. Functional study supported a direct link between MYCBP2 and neurodevelopmental spectrum disorder specifically corpus callosum defects.
Sources: Literature
Mendeliome v1.437 FOXI3 Paul De Fazio gene: FOXI3 was added
gene: FOXI3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FOXI3 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: FOXI3 were set to 36260083
Phenotypes for gene: FOXI3 were set to Dysostosis with predominant craniofacial involvement (MONDO:0800085)
Penetrance for gene: FOXI3 were set to Incomplete
Review for gene: FOXI3 was set to GREEN
gene: FOXI3 was marked as current diagnostic
Added comment: Ten affected individuals from 4 families reported with monoallelic variants, 2 with missense variants affecting the nuclear localisation sequence and 2 with frameshift variants.

The missense variants were associated with isolated microtia with aural atresia and affected subcellular localisation of the protein, while the frameshift variants were associated with microtia and mandubular hypoplasia, suggesting dosage sensitivity.

Rated green but CAUTION for incomplete penetrance. 3 of the 4 families had unaffected carriers. Family 1 in particular had 25 genotyped individuals, of which 15 were carriers, of which 5 were affected.
Sources: Literature
Mendeliome v1.436 TOMM7 Zornitza Stark edited their review of gene: TOMM7: Added comment: Second family reported in PMID 36282599: single affected individual with homozygous missense variant; clinical presentation with progeroid features but functional data supports underlying mitochondrial aetiology.

Maintain Amber rating as the two patients have quite disparate clinical presentations.; Changed publications: 36282599
Mendeliome v1.435 CBFB Ain Roesley gene: CBFB was added
gene: CBFB was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CBFB was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CBFB were set to 36241386
Phenotypes for gene: CBFB were set to cleidocranial dysplasia (MONDO#0007340), CBFB-related
Penetrance for gene: CBFB were set to Complete
Review for gene: CBFB was set to GREEN
gene: CBFB was marked as current diagnostic
Added comment: 5 families with 8 individuals, including 2 de novos and 1 intragenic exon 4 deletion

In 1 family, the mother did not report skeletal concerns but had dental abnormalities during childhood
Sources: Literature
Mendeliome v1.430 SFTPA1 Zornitza Stark edited their review of gene: SFTPA1: Added comment: Additional 3 families reported with mono-allelic variants.; Changed rating: GREEN; Changed publications: 31601679, 30854216, 28869238, 26792177, 32855221
Mendeliome v1.421 CLCN7 Zornitza Stark changed review comment from: Two individuals reported with same missense variant and hypopigmentation, organomegaly, and delayed myelination and development. Variant is GoF. No osteopetrosis, biopsy findings from skin and other organs are consistent with a lysosomal storage disorder. IUGR, prematurity and polyhydramnios are features.

Bi-allelic variants in this gene are associated with osteopetrosis.; to: Two individuals reported with same missense variant and hypopigmentation, organomegaly, and delayed myelination and development. Variant is GoF. No osteopetrosis, biopsy findings from skin and other organs are consistent with a lysosomal storage disorder. IUGR, prematurity and polyhydramnios are features.

Mono- and bi-allelic variants in this gene are associated with osteopetrosis.
Mendeliome v1.418 WNK4 Zornitza Stark changed review comment from: More than 5 unrelated families reported.; to: More than 5 unrelated families reported.

Caution: assessed as MODERATE by ClinGen. Although at least 9 individuals have been reported, all the reported variants are missense without other supportive functional or segregation data.
Mendeliome v1.415 CCDC34 Zornitza Stark gene: CCDC34 was added
gene: CCDC34 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: CCDC34 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CCDC34 were set to 34348960
Phenotypes for gene: CCDC34 were set to Spermatogenic failure 76, MIM# 620084
Review for gene: CCDC34 was set to GREEN
Added comment: Two unrelated individuals reported with homozygous frameshift variants. Mouse model recapitulated phenotype.
Sources: Expert list
Mendeliome v1.411 NFAT5 Zornitza Stark edited their review of gene: NFAT5: Added comment: Two additional individuals with missense variants reported in PMID 36238298: one with EBV infection with hepatitis and enterocolitis, and one with fatal HLH.; Changed rating: AMBER; Changed publications: 25667416, 36238298; Changed phenotypes: Immune deficiency disease, MONDO:0003778, NFAT5-related, Recurrent infections, Autoimmune enterocolopathy, EBV susceptibility, HLH
Mendeliome v1.405 IMPA1 Bryony Thompson gene: IMPA1 was added
gene: IMPA1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: IMPA1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: IMPA1 were set to 26416544; 24554717; 32839513; 17460611
Phenotypes for gene: IMPA1 were set to intellectual disability, autosomal recessive 59 MONDO:0015020
Review for gene: IMPA1 was set to AMBER
Added comment: A homozygous frameshift variant identified in a large Brazilian consanguineous family with ID, also supporting functional studies and null mouse models.
Sources: Literature
Mendeliome v1.403 ARNT2 Bryony Thompson gene: ARNT2 was added
gene: ARNT2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ARNT2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ARNT2 were set to 11381139; 24022475
Phenotypes for gene: ARNT2 were set to Webb-Dattani syndrome MONDO:0014404
Review for gene: ARNT2 was set to AMBER
Added comment: A homozygous frameshift (c.1373_1374dupTC) in six affected children from a highly consanguineous family with a syndromic phenotype including microcephaly with fronto-temporal lobe hypoplasia, multiple pituitary hormone deficiency, seizures, severe visual impairment and abnormalities of the kidneys and urinary tract. In a Arnt2(-/-) mouse model embryos die perinatally and exhibit impaired hypothalamic development.
Sources: Literature
Mendeliome v1.401 FRMD5 Zornitza Stark gene: FRMD5 was added
gene: FRMD5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FRMD5 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: FRMD5 were set to 36206744
Phenotypes for gene: FRMD5 were set to Neurodevelopmental disorder MONDO:0700092, FRMD5-related
Review for gene: FRMD5 was set to GREEN
Added comment: Eight individuals reported with missense variants in this gene, de novo in 6 where parents were available. Clinical presentation was with ID, seizures, ataxia. Fly model.
Sources: Literature
Mendeliome v1.392 SEPT4 Bryony Thompson gene: SEPT4 was added
gene: SEPT4 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SEPT4 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SEPT4 were set to 36135717; 15737931; 15737930
Phenotypes for gene: SEPT4 were set to male infertility MONDO:0005372
Review for gene: SEPT4 was set to GREEN
Added comment: Two unrelated cases with primary male infertility (asthenoteratozoospermia) from consanguineous Chinsese families with 2 difference homozygous stopgain variants (Patient 1: c.721A>T, p.R241* and Patient 2: c.205C>T, p.R69*). Multiple supporting mouse models where the male mice are sterile.
Sources: Literature
Mendeliome v1.390 FAM20B Bryony Thompson gene: FAM20B was added
gene: FAM20B was added to Mendeliome. Sources: Other
Mode of inheritance for gene: FAM20B was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FAM20B were set to 30847897; 30105814; 22732358; 27405802
Phenotypes for gene: FAM20B were set to Desbuquois dysplasia MONDO:0015426
Review for gene: FAM20B was set to AMBER
Added comment: Two siblings from a single family with neonatal short limb dysplasia resembling Desbuquois dysplasia. One of the siblings underwent genetic testing and compound heterozygous variants were identified in FAM20B ((NM_014864: c.174_178delTACCT p.T59Afs*19/c.1038delG p.N347Mfs*4). Multiple mouse models reported with skeletal abnormalities.
Sources: Other
Mendeliome v1.388 EXOC6B Bryony Thompson gene: EXOC6B was added
gene: EXOC6B was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: EXOC6B was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: EXOC6B were set to 26669664; 30284759; 36150098
Phenotypes for gene: EXOC6B were set to Spondyloepimetaphyseal dysplasia with joint laxity MONDO:0019675
Review for gene: EXOC6B was set to GREEN
Added comment: 6 affected individuals from 4 families, and supporting assays in patient cells
PMID: 26669664 - 2 brothers with spondyloepimetaphyseal dysplasia (SEMD), multiple joint dislocations at birth, severe joint laxity, scoliosis, gracile metacarpals and metatarsals, delayed bone age and poorly ossified carpal and tarsal bones from a consanguineous family, with a homozygous nonsense variant [c.906T>A/p.(Tyr302*)]
PMID: 30284759 - 2 sisters with dislocations of the hips and knees, long slender fingers with distal tapering, significant motor disability but normal (older sister) or low-normal intelligence (younger sister), with a homozygous in-frame deletion of exons 9-20
PMID: 36150098 - 2 unrelated probands from consanguineous families, one with a homozygous frameshift exon 20 deletion and one with a homozygous nonsense variant (c.401T>G p.Leu134Ter). Function assessment of patient fibroblast cell lines indicated abrogation of exocytosis leading to impaired primary ciliogenesis
Sources: Literature
Mendeliome v1.385 VPS33A Bryony Thompson changed review comment from: PMID: 28013294 - 13 cases homozygous for VPS33A c.1492C>T p.(Arg498Trp) from non-consanguineous Yakuti families with a Mucopolysaccharidoses-like disease (coarse facial features, skeletal abnormalities, hepatosplenomegaly, respiratory problems, intellectual disability, and excess secretion of urinary glycosaminoglycans). Lysosomal over-acidification and heparan sulphate accumulation were detected in patient-derived and VPS33A-depleted HeLa cells.
PMID: 27547915 - 2 affected siblings homozygous for VPS33A p.(Arg498Trp) from a consanguineous Turkish family
PMID: 31936524 - 1 homozygous case from a non-consanguineous Yakuti family
PMID: 36153662 - an attenuated juvenile case with a new homozygous missense variant VPS33A c.599G>C p.(Arg200Pro). Urinary glycosaminoglycan analysis revealed increased heparan, dermatan sulphates, and hyaluronic acid and decreased abundance of VPS33A in patient-derived fibroblasts; to: Now two missense variants reported with disease in at least 15 probands/families
PMID: 28013294 - 13 cases homozygous for VPS33A c.1492C>T p.(Arg498Trp) from non-consanguineous Yakuti families with a Mucopolysaccharidoses-like disease (coarse facial features, skeletal abnormalities, hepatosplenomegaly, respiratory problems, intellectual disability, and excess secretion of urinary glycosaminoglycans). Lysosomal over-acidification and heparan sulphate accumulation were detected in patient-derived and VPS33A-depleted HeLa cells.
PMID: 27547915 - 2 affected siblings homozygous for VPS33A p.(Arg498Trp) from a consanguineous Turkish family
PMID: 31936524 - 1 homozygous case from a non-consanguineous Yakuti family
PMID: 36153662 - an attenuated juvenile case with a new homozygous missense variant VPS33A c.599G>C p.(Arg200Pro). Urinary glycosaminoglycan analysis revealed increased heparan, dermatan sulphates, and hyaluronic acid and decreased abundance of VPS33A in patient-derived fibroblasts
Mendeliome v1.384 DPH5 Zornitza Stark gene: DPH5 was added
gene: DPH5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DPH5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: DPH5 were set to 35482014
Phenotypes for gene: DPH5 were set to Neurodevelopmental disorder with short stature, prominent forehead, and feeding difficulties, MIM# 620070
Review for gene: DPH5 was set to GREEN
Added comment: 5 individuals from 3 unrelated families reported with severe ID, feeding difficulties, dysmorphic features and congenital anomalies, though there was no consistent pattern to these.
Sources: Literature
Mendeliome v1.372 LETM1 Ee Ming Wong gene: LETM1 was added
gene: LETM1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: LETM1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: LETM1 were set to 36055214
Phenotypes for gene: LETM1 were set to Mitochondrial disease MONDO#0044970, LETM1-related
gene: LETM1 was marked as current diagnostic
Added comment: -18 affected individuals from 11 unrelated families harbouring ultra-rare bi-allelic missense and loss-of-function LETM1 variants
-Most of the affected individuals (14/18, 78%) had an infantile-onset disease manifestation,
and 4/18 (22%) presented first symptoms between the ages of 1.5 and 2 years
-Variant types included missense, frameshift, stop loss, in-frame deletion and splice defect
-From biochemical and morphological studies, bi-allelic LETM1 variants are associated with defective mitochondrial K efflux, swollen mitochondrial matrix structures, and loss of important mitochondrial oxidative phosphorylation protein components
Sources: Literature
Mendeliome v1.359 MTSS1L Elena Savva gene: MTSS1L was added
gene: MTSS1L was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MTSS1L was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MTSS1L were set to PMID: 36067766
Phenotypes for gene: MTSS1L were set to Intellectual disability, MTSS2-related (MONDO#0001071)
Review for gene: MTSS1L was set to GREEN
Added comment: Alt gene name: MTSS2

Huang (2022): recurring de novo missense variant (p.R671W) causing syndromic intellectual disability in 5 unrelated individuals.
- Individuals present with GDD, mild ID (5/5), nystagmus (3/5), optic atrophy (1/5), ptosis (2/5), sensorineural hearing loss (2/4), microcephaly or relative microcephaly (5/5), and shared mild facial dysmorphisms.
- Overexpression supports a DN mechanism
Sources: Literature
Mendeliome v1.355 RABGAP1 Zornitza Stark gene: RABGAP1 was added
gene: RABGAP1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RABGAP1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RABGAP1 were set to 36083289
Phenotypes for gene: RABGAP1 were set to Neurodevelopmental disorder, RABGAP1-related,MONDO:0700092
Review for gene: RABGAP1 was set to GREEN
Added comment: 5 individuals from three families reported with ID, microcephaly, SNHL and seizures. Mouse model recapitulated the phenotype.
Sources: Literature
Mendeliome v1.348 NSD2 Zornitza Stark edited their review of gene: NSD2: Added comment: PMID 36189577: two individuals reported with a GoF variant, p.Glu1099Lys, and a distinct phenotype: intellectual disability, coarse/ square facial gestalt, abnormalities of the hands, and organomegaly.; Changed phenotypes: Rauch-Steindl syndrome, MIM# 619695, Microcephaly, intellectual disability, Neurodevelopmental disorder, NSD2-associated, GoF, MONDO:0700092
Mendeliome v1.348 FOSL2 Krithika Murali gene: FOSL2 was added
gene: FOSL2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FOSL2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: FOSL2 were set to 36197437
Phenotypes for gene: FOSL2 were set to Neurodevelopmental disorder, MONDO:0700092, FOSL2-related
Review for gene: FOSL2 was set to GREEN
Added comment: PMID 36197437 Cospain et al 2022 report 11 individuals from 10 families with heterozygous PTC variants in exon 4/4 of the FOSL2 gene. All variants were predicted to escape NMD resulting in a truncated protein, with the truncation occurring proximal to the C-terminal domain (supportive functional studies).

In 10/11 families the variant occurred de novo in a single affected proband. In one family with 2 affected siblings, the variant was present in the siblings but absent in the unaffected parent likely due to gonadal mosaicism.

Clinical features included:
- Cutis aplasia congenital of the scalp (10/11)
- Tooth enamel hypoplasia and discolouration (8/9)
- Multiple other ectodermal features also noted e.g. small brittle nails, hypotrichosis/hypertrichosis, lichen sclerosis
- 5 individuals had cataracts (mostly bilateral, congenital/early childhood onset)
- 6/9 IUGR
- 5/9 postnatal growth restriction
- 7/9 developmental delay/ID
- 5/7 ADHD/ASD
- 2/9 seizures
Sources: Literature
Mendeliome v1.346 TRAF3 Zornitza Stark changed review comment from: Single individual reported.; to: Single individual reported with HSV-induced encephalopathy.
Mendeliome v1.346 COQ4 Zornitza Stark changed review comment from: Primary coenzyme Q10 deficiency-7 (COQ10D7) is an autosomal recessive disorder resulting from mitochondrial dysfunction. Most patients have onset of severe cardiac or neurologic symptoms soon after birth. IUGR reported. At least 9 unrelated families reported.; to: Primary coenzyme Q10 deficiency-7 (COQ10D7) is an autosomal recessive disorder resulting from mitochondrial dysfunction. Most patients have onset of severe cardiac or neurologic symptoms soon after birth. IUGR reported. At least 9 unrelated families reported.

Treatment: CoQ10 supplementation can limit disease progression and reverse some clinical manifestations.
Mendeliome v1.342 ACVR1 Zornitza Stark changed review comment from: Fibrodysplasia ossificans progressiva is a rare autosomal dominant disease with complete penetrance involving progressive ossification of skeletal muscle, fascia, tendons, and ligaments. FOP has a prevalence of approximately 1 in 2 million worldwide, and shows no geographic, ethnic, racial, or gender preference. Individuals with FOP appear normal at birth except for great toe abnormalities: the great toes are short, deviated, and monophalangic. Ossification occurs progressively over the course of a lifetime in an inevitable and unpredictable episodic manner.

Multiple unrelated families reported. The R206H variant is recurrent.

Note variants in this gene are also associated with congenital heart disease, PMID 29089047.; to: Fibrodysplasia ossificans progressiva is a rare autosomal dominant disease with complete penetrance involving progressive ossification of skeletal muscle, fascia, tendons, and ligaments. FOP has a prevalence of approximately 1 in 2 million worldwide, and shows no geographic, ethnic, racial, or gender preference. Individuals with FOP appear normal at birth except for great toe abnormalities: the great toes are short, deviated, and monophalangic. Ossification occurs progressively over the course of a lifetime in an inevitable and unpredictable episodic manner.

Multiple unrelated families reported. The R206H variant is recurrent.

Clinical trial with palovarotene

Note variants in this gene are also associated with congenital heart disease, PMID 29089047.
Mendeliome v1.342 ATP7A Zornitza Stark changed review comment from: ATP7A-related copper transport disorders are classically separated in three pathologies according to their severity, all inherited in an X-linked recessive manner: Menkes disease (MD, OMIM #309400) which represent more than 90% of cases; occipital Horn Syndrome (OHS, OMIM #304150) and ATP7A-related distal motor neuropathy also named X-linked distal spinal muscular atrophy-3 (SMAX3, OMIM #300489). Although there is no clear cut correlation between Cu and ceruloplasmin levels in ATP7A related disorders, these three entities probably represent a continuum partly depending on residual functional ATP7A protein.; to: ATP7A-related copper transport disorders are classically separated in three pathologies according to their severity, all inherited in an X-linked recessive manner: Menkes disease (MD, OMIM #309400) which represent more than 90% of cases; occipital Horn Syndrome (OHS, OMIM #304150) and ATP7A-related distal motor neuropathy also named X-linked distal spinal muscular atrophy-3 (SMAX3, OMIM #300489). Although there is no clear cut correlation between Cu and ceruloplasmin levels in ATP7A related disorders, these three entities probably represent a continuum partly depending on residual functional ATP7A protein.

Treatment for Menkes disease: subcutaneous injections of copper histidine or copper chloride

ClinGen has assessed as moderate evidence for actionability.

Neonatal treatment with subcutaneous copper-histidine (initiated before 30 days of life) is recommended for asymptomatic males with a diagnosis of MD, but is not recommended for symptomatic boys or after 30 days of life. Treatment should be continued indefinitely. In an open-label clinical trial, 12 patients with MD treated with copper-histidine within 22 days of life had 92% survival after a mean follow-up of 4.6 years compared to 13% in a historical control group of 15 patients treated after a late diagnosis (mean age at diagnosis: 163 ± 113 days, range: 42 to 390). Two of the 12 patients with earlier treatment had normal neurological development. A second open-label trial of 35 presymptomatic patients receiving copper-histidine at less than a month of age reported significant improvement of four major neurodevelopmental (gross motor, fine motor/adaptive, personal/social, and language) domains and a non-significant lower mortality (28.5% vs 50%) at age of 3 years (or age of death) compared to 22 patients treated later and after onset of symptoms.
Mendeliome v1.332 PTPA Zornitza Stark gene: PTPA was added
gene: PTPA was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PTPA was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PTPA were set to 36073231
Phenotypes for gene: PTPA were set to Intellectual disability, MONDO: 36073231, PTPA-related
Review for gene: PTPA was set to AMBER
Added comment: Biallelic PTPA pathogenic variants lead to a form of ID with later-onset parkinsonism based on 4 individuals from 2 families in the literature. Affected individuals were homozygous for missense variants demonstrated to result to reduced mRNA and protein levels as well as PP2A complex activation. Drosophila studies support an age-dependent locomotor dysfunction. Variants in other PP2A-complex-related genes also lead to NDDs. Summary provided below.

There is currently no associated phenotype in OMIM, G2P, PanelApp UK or SysID.

Consider inclusion in relevant panels (ID, Parkinsonism/movement disorders, etc) with amber rating pending further reports.

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Fevga, Tesson et al (2022 - PMID: 36073231) describe the features of 4 individuals, from 2 unrelated families, with biallelic pathogenic PTPA variants.

These presented with normal or delayed early milestones, learning disability and ID (mild to moderate) followed by progressive signs of parkinsonism (at the age of 11 yrs in 2 sibs, 15 yrs in another individual). Motor symptoms were responsive to levodopa and later to deep brain stimulation.

Linkage analysis in one consanguineous family followed by exome revealed homozygosity for a missense PTPA variant (NM_178001:c.893T>G/p.Met298Arg). Exome sequencing in affected subjects from the 2nd family revealed homozygosity for a further missense variant (c.512C>A/p.Ala171Asp). There were no other candidate variants for the phenotype following parental / segregation studies.

Role of the gene:
As the authors discuss, PTPA (or PPP2R4) is ubiquitously expressed in all tissues incl. brain and encodes a phosphotyrosyl phosphatase activator of the dimeric form of protein phosphatase-2A (PP2A). PP2A in turn, is the major Ser/Thr phosphatase in brain targeting a large number of proteins involved in diverse functions. Activation of PP2A is dependent on its methylation, which is negatively regulated by the PP2A-specific methylesterase (PME-1). By binding to PME-1, PTPA counteracts the negative influence of the former on PP2A. Pathogenic variants in genes encoding subunits/regulators of the PP2A complex (e.g. PPP2R1A or PPP2CA) are associated with neurodevelopmental disorders.

Variant studies:
Upon overexpression of wt and both variants in a HEK-293 cell line the authors demonstrated that both variants resulted in significantly reduced mRNA and protein levels (which for Ala171Asp were attributed to increased proteasomal degradation). Both variants were shown to result in impaired PP2A complex activation compared to wt.

Drosophila / animal models:
Pan-neuronal RNAi-mediated knockdown of ptpa in Drosophila resulted in an age-dependent locomotor dysfunction, reversible with L-DOPA treatment.
Previous studies in mice suggest cognitive/electrophysiological impairments upon downregulation of PP2A activity in transgenic mice.
Sources: Literature
Mendeliome v1.328 PKHD1 Zornitza Stark edited their review of gene: PKHD1: Added comment: Notę heterozygous carriers reported to have liver cysts and nephrocalcinosis, gene-disease association considered MODERATE by ClinGen.; Changed publications: 28375157, 21945273; Changed phenotypes: Polycystic kidney disease 4, with or without hepatic disease, MIM# 263200, Nephrocalcinosis, MONDO:0001567, PKHD1-related; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v1.325 PPP2R5C Teresa Zhao changed review comment from: - ClinVar: two de novo missense variants (p.E177K and p.H188R), one has been reported for intellectual disability

- PMID 25972378: inframe del (T157del) found in a de novo individual with ID, facial asymmetry, conductive HL, overgrowth

- VCGS proband: additional de novo missense variant (p.K299E) found in one individual with syndromic intellectual disability; to: - ClinVar: two de novo missense variants (p.E177K and p.H188R), one has been reported for intellectual disability

- PMID 25972378: inframe del (T157del) found in a de novo individual with ID, facial asymmetry, conductive HL, overgrowth

- VCGS proband: additional de novo missense variant (p.K299E) found in one individual with syndromic intellectual disability
Mendeliome v1.323 NODAL Zornitza Stark edited their review of gene: NODAL: Added comment: NODAL is a good biological candidate for heterotaxy disorders, and this is supported by animal models. The gene is depleted for LoF variants in gnomad.

The missense variants reported in PMIDs 9354794 and 19064609 are present at a high population frequency in gnomad, including some in homozygous case: their association with disease is DISPUTED.

A total of at least 7 families reported with severe CHD and high impact variants (stop gain, frameshift and canonical splice site). However, almost invariably these were inherited from unaffected or questionably affected parents (e.g. self reports of heart murmur in childhood), raising questions about whether these variants contribute to disease under a monogenic or polygenic model and/or about penetrance.

Discussed at GenCC on 13/9/2022 and agreed on MODERATE assessment.; Changed rating: AMBER; Changed publications: 9354794, 19064609, 29368431, 19933292, 11311163, 30293987
Mendeliome v1.318 UBAP2L Zornitza Stark changed review comment from: Based on Jia et al (2022 - PMID: 35977029) speech, motor delay as well as ID are observed in individuals harboring de novo pLoF variants in UBAP2L. The gene encodes a regulator of the stress granule (SG) assembly. Extensive evidence is provided on the effect of variants as well as the role of UBAP2L and other genes for components and/or regulation of SG in pathogenesis of NDDs. Among others a Ubap2l htz deletion mouse model (behavioral and cognitive impairment, abnormal cortical development due to impaired SG assembly, etc). Data from 26 previous studies, aggregating 40,853 probands with NDDs (mostly DD/ID, also ASD) suggest enrichment for DNMs in UBAP2L or other genes previously known and further shown to be important for SG formation (incl. G3BP1/G3BP2, CAPRIN1).
Sources: Literature; to: Based on Jia et al (2022 - PMID: 35977029) speech, motor delay as well as ID are observed in 11 individuals harboring de novo pLoF variants in UBAP2L. The gene encodes a regulator of the stress granule (SG) assembly. Extensive evidence is provided on the effect of variants as well as the role of UBAP2L and other genes for components and/or regulation of SG in pathogenesis of NDDs. Among others a Ubap2l htz deletion mouse model (behavioral and cognitive impairment, abnormal cortical development due to impaired SG assembly, etc). Data from 26 previous studies, aggregating 40,853 probands with NDDs (mostly DD/ID, also ASD) suggest enrichment for DNMs in UBAP2L or other genes previously known and further shown to be important for SG formation (incl. G3BP1/G3BP2, CAPRIN1).
Sources: Literature
Mendeliome v1.317 UBAP2L Zornitza Stark gene: UBAP2L was added
gene: UBAP2L was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: UBAP2L was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: UBAP2L were set to 35977029
Phenotypes for gene: UBAP2L were set to Neurodevelopmental disorder, MONDO:0700092, UBAP2L-related
Review for gene: UBAP2L was set to GREEN
Added comment: Based on Jia et al (2022 - PMID: 35977029) speech, motor delay as well as ID are observed in individuals harboring de novo pLoF variants in UBAP2L. The gene encodes a regulator of the stress granule (SG) assembly. Extensive evidence is provided on the effect of variants as well as the role of UBAP2L and other genes for components and/or regulation of SG in pathogenesis of NDDs. Among others a Ubap2l htz deletion mouse model (behavioral and cognitive impairment, abnormal cortical development due to impaired SG assembly, etc). Data from 26 previous studies, aggregating 40,853 probands with NDDs (mostly DD/ID, also ASD) suggest enrichment for DNMs in UBAP2L or other genes previously known and further shown to be important for SG formation (incl. G3BP1/G3BP2, CAPRIN1).
Sources: Literature
Mendeliome v1.311 PDZD8 Zornitza Stark gene: PDZD8 was added
gene: PDZD8 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PDZD8 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PDZD8 were set to 35227461
Phenotypes for gene: PDZD8 were set to Intellectual developmental disorder with autism and dysmorphic facies, MIM# 620021
Review for gene: PDZD8 was set to GREEN
Added comment: Four individuals from two unrelated families, Drosophila and mouse models support gene-disease association.
Sources: Literature
Mendeliome v1.310 SLC31A1 Daniel Flanagan gene: SLC31A1 was added
gene: SLC31A1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: SLC31A1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLC31A1 were set to PMID: 35913762
Phenotypes for gene: SLC31A1 were set to Neurodevelopmental disorder, SLC31A1-related (MONDO#0700092)
Review for gene: SLC31A1 was set to RED
Added comment: SLC31A1 is also referred to as CTR1.
Monozygotic twins with hypotonia, global developmental delay, seizures, and rapid brain atrophy, consistent with profound central nervous system copper deficiency. Homozygous for a novel missense variant (p.(Arg95His)) in copper transporter CTR1, both parents heterozygous. A mouse knock-out model of CTR1 deficiency resulted in prenatal lethality.
Sources: Expert list
Mendeliome v1.302 COX11 Zornitza Stark gene: COX11 was added
gene: COX11 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: COX11 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: COX11 were set to 36030551
Phenotypes for gene: COX11 were set to Mitochondrial disease (MONDO:0044970), COX11-related
Review for gene: COX11 was set to GREEN
Added comment: PMID: 36030551
- Biallelic variants in COX11 associated with infantile-onset mitochondrial encephalopathies in two unrelated consanguineous families, one with homozygous missense variant, another with homozygous frameshift variant.
- Functional studies supported pathogenicity of the missense variant, and showed that mutant COX11 fibroblasts had decreased ATP levels which could be rescued by CoQ10.
- RNA studies suggested the mutant transcript with p.(Val12Glyfs*21) is not degraded by nonsense mediated decay.
Sources: Literature
Mendeliome v1.291 LGI3 Zornitza Stark Phenotypes for gene: LGI3 were changed from Global developmental delay; Intellectual disability; Distal deformities; Diminished reflexes; Facial myokymia; Hyporeflexia/areflexi to Neurodevelopmental disorder, MONDO:0700092, LGI3-related; Global developmental delay; Intellectual disability; Distal deformities; Diminished reflexes; Facial myokymia; Hyporeflexia/areflexi
Mendeliome v1.289 TMEM147 Naomi Baker gene: TMEM147 was added
gene: TMEM147 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TMEM147 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TMEM147 were set to PMID: 36044892
Phenotypes for gene: TMEM147 were set to Neurodevelopmental disorder (MONDO:0700092), TMEM147-related
Review for gene: TMEM147 was set to GREEN
Added comment: PMID: 36044892; Twelve different variants reported in 23 affected individuals from 15 unrelated families with biallelic variants. All individuals had global developmental delay and intellectual disability. Consistent facial dysmorphisms included coarse facies, prominent forehead, board depressed nasal root, tented mouth, long smooth philtrum, and low-set ears. In vitro studies of missense variants demonstrated accelerated protein degradation via the autophagy-lysosomal pathway, while analysis of primary fibroblasts and granulocytes provided functional evidence of ER and nuclear envelope dysfunction.
Sources: Literature
Mendeliome v1.285 LGI3 Melanie Marty edited their review of gene: LGI3: Changed phenotypes: Global developmental delay, Intellectual disability, Distal deformities, Diminished reflexes, Facial myokymia, Hyporeflexia/areflexia
Mendeliome v1.285 HNRNPH1 Hazel Phillimore changed review comment from: PMID: 35989590; Ouyang, J. et al. (2022): Two loss of function variants c.2dup, p.(M1?) and c.121dup, p.(Q41Pfs*20), were found in two individuals with early onset high myopia. They were in cohort of 928 probands with early onset high myopia. The pedigrees for these probands indicate that no other relatives were affected. However, it does not appear that any relatives were tested for these variants. These variants were reported to be absent in gnomAD. Note: there is actually 1 heterozygote for an alternative variant that is predicted to cause p.(Met1?) in gnomADv2).
In gnomAD, there are very few LOF variants. (LOF shows pLI = 1).
The group also studied knockdown of this gene in zebrafish, which resulted in ocular coloboma.; to: PMID: 35989590; Ouyang, J. et al. (2022): Two loss of function variants c.2dup, p.(M1?) and c.121dup, p.(Q41Pfs*20), were found in two individuals with early onset high myopia. They were in cohort of 928 probands with early onset high myopia. The pedigrees for these probands indicate that no other relatives were affected. However, it does not appear that any relatives were tested for these variants. These variants were reported to be absent in gnomAD. Note: there is actually 1 heterozygote for an alternative variant that is predicted to cause p.(Met1?) in gnomADv2.
In gnomAD, there are very few LOF variants. (LOF shows pLI = 1).
The group also studied knockdown of this gene in zebrafish, which resulted in ocular coloboma.
Mendeliome v1.283 LGI3 Melanie Marty gene: LGI3 was added
gene: LGI3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: LGI3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: LGI3 were set to PMID: 35948005
Phenotypes for gene: LGI3 were set to Global developmental delay; Intellectual disability; Distal deformities; Diminished reflexes; Facial myokymia; Hyporeflexia/areflexi
Review for gene: LGI3 was set to GREEN
Added comment: Sixteen individuals from eight unrelated families with loss-of-function (LoF) bi-allelic variants in LGI3.
Lgi3-null mice showed reduced and mis-local-ized Kv1 channel complexes in myelinated peripheral axons.
Sources: Literature
Mendeliome v1.276 NOTCH1 Chern Lim changed review comment from: PMID: 35947102:
- Seven unrelated patients with leukoencephalopathy and calcifications, germline heterozygous de novo gain-of-function variants in NOTCH1.
- Missense and small inframe insertion variants in the negative regulatory region.; to: PMID: 35947102:
- Seven unrelated patients with leukoencephalopathy and calcifications, germline heterozygous de novo gain-of-function variants in NOTCH1.
- Other clinical features include intellectual disability, spasticity and etc. Childhood onset in most individuals however 15y and 40y reported in two individuals.
- Missense and small inframe insertion variants in the negative regulatory region.
Mendeliome v1.276 ADAMTS15 Naomi Baker changed review comment from: PMID: 35962790; Four different homozygous variants identified in five affected individuals from four unrelated consanguineous families presenting with congenital flexion contractures of the interphalangeal joints and hypoplastic or absent palmar creases. All patients also had a mild appearance of fetal finger pads and clinodactyly of the fifth finger. Other reported phenotypes include: ontractures of knee, Achilles tendon, and ankle (4/5), spine involvement (kyphoscoliosis and/or spinal stiffness) (4/5), and orthodontic features (small mouth, dental crowding, missing teeth, or arched palate) (4/5).
Sources: Literature; to: PMID: 35962790; Four different homozygous variants identified in five affected individuals from four unrelated consanguineous families presenting with congenital flexion contractures of the interphalangeal joints and hypoplastic or absent palmar creases. All patients also had a mild appearance of fetal finger pads and clinodactyly of the fifth finger. Other reported phenotypes include: contractures of knee, Achilles tendon, and ankle (4/5), spine involvement (kyphoscoliosis and/or spinal stiffness) (4/5), and orthodontic features (small mouth, dental crowding, missing teeth, or arched palate) (4/5).
Sources: Literature
Mendeliome v1.276 ADAMTS15 Naomi Baker gene: ADAMTS15 was added
gene: ADAMTS15 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ADAMTS15 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ADAMTS15 were set to PMID: 35962790
Phenotypes for gene: ADAMTS15 were set to Arthrogryposis (MONDO:0008779), ADMATS15-related
Review for gene: ADAMTS15 was set to GREEN
Added comment: PMID: 35962790; Four different homozygous variants identified in five affected individuals from four unrelated consanguineous families presenting with congenital flexion contractures of the interphalangeal joints and hypoplastic or absent palmar creases. All patients also had a mild appearance of fetal finger pads and clinodactyly of the fifth finger. Other reported phenotypes include: ontractures of knee, Achilles tendon, and ankle (4/5), spine involvement (kyphoscoliosis and/or spinal stiffness) (4/5), and orthodontic features (small mouth, dental crowding, missing teeth, or arched palate) (4/5).
Sources: Literature
Mendeliome v1.276 CAPRIN1 Paul De Fazio gene: CAPRIN1 was added
gene: CAPRIN1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CAPRIN1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: CAPRIN1 were set to 35979925
Phenotypes for gene: CAPRIN1 were set to Neurodevelopmental disorder, CAPRIN1-related MONDO:0700092
Review for gene: CAPRIN1 was set to GREEN
gene: CAPRIN1 was marked as current diagnostic
Added comment: 12 individuals reported with ID and language impairment. Other features included seizures (4 individuals), hands and feet malformations (5 individuals), breathing problems (6 individuals), ocular problems (4 individuals) and hearing problems (3 individuals).

All of the variants were nonsense (NMD-predicted) or splicing variants. 10 were de novo, 1 was inherited from an affected father. Functional studies supported pathogenicity.
Sources: Literature
Mendeliome v1.271 LEF1 Zornitza Stark edited their review of gene: LEF1: Added comment: Monoallelic variants in LEF1 reported in 11 affected individuals from 4 unrelated families, and a biallelic variant reported in an affected individual from a consanguineous family. The phenotypic spectrum included various limb malformations, such as radial ray defects, polydactyly or split hand/foot, and ectodermal dysplasia. Haploinsufficiency or loss of DNA binding postulated to be responsible for a mild to moderate phenotype, whereas loss of β-catenin binding caused by biallelic variants postulated to be associated with a severe phenotype.; Changed rating: GREEN; Changed publications: 32022899, 35583550; Changed phenotypes: Syndromic disease, MONDO:0002254, LEF1-related; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v1.252 FOCAD Zornitza Stark gene: FOCAD was added
gene: FOCAD was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: FOCAD was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FOCAD were set to 35864190
Phenotypes for gene: FOCAD were set to Liver disease, severe congenital, MIM# 619991
Review for gene: FOCAD was set to GREEN
Added comment: Moreno Traspas et al 2022 reported 14 children from ten unrelated families with syndromic form of pediatric liver cirrhosis. Genome/exome sequencing analysis reveled biallelic variants in the FOCAD gene. Most of the mutations were nonsense, frameshift, or splice site alterations, predicted to result in a loss of function, but there were also 3 missense variants at highly conserved residues. Western blot analysis of dermal fibroblasts derived from 2 patients showed near absent FOCAD expression in cellular extracts. There were also decreased levels of the SKIC2 protein, suggesting that FOCAD may contribute to the stability of RNA helicase (OMIM: 619991).
Sources: Expert Review
Mendeliome v1.247 ZMYND8 Zornitza Stark gene: ZMYND8 was added
gene: ZMYND8 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: ZMYND8 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ZMYND8 were set to 35916866; 32530565
Phenotypes for gene: ZMYND8 were set to Neurodevelopmental disorder, MONDO:0700092, ZMYND8-related; Delayed speech and language development; Motor delay; Intellectual disability; Abnormality of cardiovascular system morphology; Hearing abnormality; Abnormality of vision; Abnormality of the face; Seizures
Review for gene: ZMYND8 was set to GREEN
Added comment: Dias et al (2022 - PMID: 35916866) describe the phenotype of 11 unrelated individuals with monoallelic de novo (or suspected de novo) missense (N=9) or truncating (N=2) ZMYND8 variants. One of these subjects was previously reported by Suzuki et al (2020 - PMID: 32530565).

Features included speech delay/language difficulties (9/11), motor delay (9/11), ID (in 10/11 - profound in 1, moderate in 2), CHD (7/11 - PDA, VSD, ASD, pulmonary stenosis, etc), hearing or vision impairment (7/11). Seizures were reported in few (in text 5/11, table 2/11). Variable non-familial facial features were present in (9/11).

As the authors discuss, ZMYND8 encodes a multidomain protein playing a role in transcription regulation, chromatin remodeling, regulation of super enhancers, DNA damage response/tumor suppression.

The protein is broadly expressed in brain and shows highest expression in early development.

Molecular modeling and/or a yeast two-hybrid system were suggestive of disrupted interaction of ZMYND8 with Drebrin (missense variants in PWWP domain) or GATAD2A (variants in MYND domain).

Neuronal Zmynd8 knockdown in Drosophila resulted in deficits in habituation learning.
Sources: Expert Review
Mendeliome v1.246 TRAC Seb Lunke Added comment: Comment on list classification: Single variant reported to date in 6 patients; 2 unrelated children from consanguineous families of Pakistani descent (PMID: 21206088); 1 non-consanguineous family from North-west India (PMID: 33909184) and 1 consanguineous parents of East Indian (https://lymphosign.com/doi/10.14785/lymphosign-2022-0001) Also note annotation issues in certain variant curation and annotation tools.
Mendeliome v1.239 SMG9 Zornitza Stark edited their review of gene: SMG9: Added comment: PMID 35087184: 5 individuals from 3 unrelated Finnish families reported with same homozygous missense variant (founder effect) and predominantly neurological phenotype. Uncertain if this is a distinct disorder or part of a spectrum with the previously reported cases.; Changed publications: 27018474, 31390136, 35087184; Changed phenotypes: Heart and brain malformation syndrome, MIM# 616920, Neurodevelopmental disorder with intention tremor, pyramidal signs, dyspraxia, and ocular anomalies, MIM# 619995
Mendeliome v1.233 SPTBN5 Zornitza Stark edited their review of gene: SPTBN5: Added comment: Monoallelic variants:
- Four probands from unrelated families (1x Pakistani and 3x Italian) with de novo heterozygous SPTBN5 variants
- 3x missense variants and 1x LoF variant were reported
- Phenotypes include intellectual disability (mild to severe), aggressive tendencies and variable features such as craniofacial and physical dysmorphisms, autistic behavior, and gastroesophageal reflux; Changed rating: GREEN; Changed publications: 35782384, 32732226, 28007035; Changed phenotypes: Neurodevelopmental disorder, MONDO:0700092, SPTBN5-related, Sacral agenesis, congenital anomalies; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v1.228 OTULIN Zornitza Stark edited their review of gene: OTULIN: Added comment: PMID 35587511: Multiple individuals reported with haploinsufficiency of OTULIN and severe staphylococcal disease, with life-threatening skin or pulmonary necrosis. Functional data.; Changed publications: 27523608, 27559085, 35587511; Changed phenotypes: Autoinflammation, panniculitis, and dermatosis syndrome, MIM# 617099, Susceptibility to infection with Staphylococcus aureus, Hereditary predisposition to infections, MONDO:0015979, OTULIN-related; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v1.228 NOX1 Zornitza Stark gene: NOX1 was added
gene: NOX1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NOX1 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: NOX1 were set to 29091079; 32064493
Phenotypes for gene: NOX1 were set to Inflammatory bowel disease, MONDO:0005265, NOX1-related
Review for gene: NOX1 was set to AMBER
Added comment: 8 IBD patients with early onset of IBD with progressive and severe colonic disease, refractory to conventional therapy and functional studies suggesting variant-dependent loss of NOX1-mediated superoxide generation. However, high frequency of nonsynonymous mutations in NOX1 suggests that NOX1 is not a highly penetrant Mendelian disorder and that other genetic modifiers or environmental factors may contribute to disease pathogenesis.

The variant reported in PMID 32064493 is present in 6 hets in gnomad.
Sources: Literature
Mendeliome v1.212 KIF15 Krithika Murali gene: KIF15 was added
gene: KIF15 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KIF15 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: KIF15 were set to 28150392
Phenotypes for gene: KIF15 were set to ?Braddock-Carey syndrome 2 - MIM#619981
Review for gene: KIF15 was set to GREEN
Added comment: PMID 28150392 Sleiman et al 2017 report one individual with homozygous R501* variant (NMD-predicted) from a consanguineous family. The child had thrombocytopenia, PRS, microcephaly -3SD by age 6, dysmorphic facies, bilateral external auditory canal atresia and deafness, microphthalmia, clinodactyly, short stature. Variant absent from gnomAD. Parents confirmed to be carriers and unaffected siblings were carriers/homozygous wild-type.

No other SNVs reported in ClinVar. Variant is absent from gnomAD. Authors note phenotypic similarities with Braddock-Carey syndrome (21q22 contiguous deletion also involving RUNX1).
Sources: Literature
Mendeliome v1.211 BMP3 Seb Lunke gene: BMP3 was added
gene: BMP3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: BMP3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: BMP3 were set to 35089417
Phenotypes for gene: BMP3 were set to coloboma, MONDO:0001476; microphthalmia, MONDO:0021129
Review for gene: BMP3 was set to AMBER
Added comment: Single missense variant identified segregating with disease following WES screen in a family with coloboma and/or microphthalmia in BMP3. Two additional unrelated patients identified with different missense in BMP3. Pathogenicity however largely on in-silicos, with one of the 3 missense having 29 hets in gnomAD. Additional functional work in bmp3 -/- zebra fish and some supporting evidence but not conclusive
Sources: Literature
Mendeliome v1.208 SLITRK2 Paul De Fazio gene: SLITRK2 was added
gene: SLITRK2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SLITRK2 was set to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Publications for gene: SLITRK2 were set to 35840571
Phenotypes for gene: SLITRK2 were set to Neurodevelopmental disorder, SLITRK2-related MONDO:0700092
Review for gene: SLITRK2 was set to GREEN
gene: SLITRK2 was marked as current diagnostic
Added comment: 6 missense variants and 1 nonsense variant (NOT NMD-predicted, single-exon gene) reported in 7 males and 1 female with neurodevelopmental disorders. Phenotypes included dev delay, mild to severe ID, delayed or absent speech, seizures and brain MRI anomalies (in some patients).

The nonsense variant was identified in two affected brothers but not in the mother, suggesting it was de novo in the maternal germline. The variant in the one affected female was de novo. All other variants in hemizygous males were inherited from an unaffected mother. In one case, the variant was also identified in the unaffected grandmother.

Functional studies showed some but not all variants displayed impaired membrane transport and impaired excitatory synapse-promoting effects. Conditional knockout mice exhibited impaired long-term memory and abnormal gait.
Sources: Literature
Mendeliome v1.206 C18orf32 Naomi Baker gene: C18orf32 was added
gene: C18orf32 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: C18orf32 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: C18orf32 were set to PMID:35107634
Phenotypes for gene: C18orf32 were set to Neurodevelopmental disorder (MONDO:0700092), C18orf32-related
Review for gene: C18orf32 was set to RED
Added comment: Two siblings reported as affected, although sequencing only performed in one sibling, with homozygous loss-of-function variant identified. Clinical presentation included developmental delay, recurrent lower respiratory tract infections, sparse rough hair, roving eye movements, hypotonia, bilateral ankle contractures and inverted nipples.
Sources: Literature
Mendeliome v1.202 EHHADH Zornitza Stark edited their review of gene: EHHADH: Added comment: https://clinmedjournals.org/articles/jcnrc/journal-of-clinical-nephrology-and-renal-care-jcnrc-3-027.pdf

Second case report, same variant, de novo. Also, experimental evidence. Assessed as MODERATE by ClinGen.; Changed rating: AMBER
Mendeliome v1.196 ADGRA3 Zornitza Stark gene: ADGRA3 was added
gene: ADGRA3 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: ADGRA3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ADGRA3 were set to 23105016
Phenotypes for gene: ADGRA3 were set to Retinitis pigmentosa, MONDO:0019200, ADGRA3-related
Review for gene: ADGRA3 was set to RED
Added comment: Only one report of a missense that is a VUS identified as a candidate through autozygome analysis (PMID: 23105016)
Sources: Expert Review
Mendeliome v1.183 IKZF1 Zornitza Stark edited their review of gene: IKZF1: Added comment: PMID 35333544: Eight individuals harboring heterozygous IKZF1R183H or IKZF1R183C variants associated with GOF effects reported. The clinical phenotypes and pathophysiology associated with IKZF1R183H/C differ from those of previously reported patients with IKZF1HI, IKZF1DN, and IKZF1DD and should therefore be considered as a novel IKAROS-associated disease entity. This condition is characterized by immune dysregulation manifestations including inflammation, autoimmunity, atopy, and polyclonal PC proliferation.; Changed publications: 21548011, 26981933, 29889099, 31057532, 7923373, 11805317, 35333544; Changed phenotypes: Immunodeficiency, common variable, 13 MIM# 616873, recurrent bacterial respiratory infections, Thrombocytopaenia, immunodeficiency, Hypogammaglobulinaemia, decrease B-cells, decrease B-cell differentiation, decrease memory B/T cells, Low Ig, pneumocystis early CID onset, Immune dysregulation
Mendeliome v1.180 IKZF2 Zornitza Stark edited their review of gene: IKZF2: Added comment: Iranian male with homozygous missense variant with recurrent infection, hypogammaglobulinaemia. Extends inheritance to AR. Supportive functional data.; Changed publications: 34920454, 34826259; Changed phenotypes: Immunodeficiency, MONDO:0021094, IKZF2-related, Immune dysregulation; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v1.176 INPP5E Zornitza Stark edited their review of gene: INPP5E: Added comment: Additional MORM family reported in PMID 34211432, hmz LoF.; Changed publications: 19668216, 32139166, 29230161, 29052317, 27998989, 27401686, 19668215, 34211432
Mendeliome v1.176 WASL Zornitza Stark gene: WASL was added
gene: WASL was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: WASL was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: WASL were set to 33571872
Phenotypes for gene: WASL were set to Parkinson's disease, MONDO:0005180, WASL-related
Review for gene: WASL was set to RED
Added comment: Single family reported, where bi-allelic variants segregated with PD in three affected individuals.
Sources: Literature
Mendeliome v1.173 PMM2 Zornitza Stark edited their review of gene: PMM2: Added comment: Association with HIPKD:
Cabezas et al (2017) reported co-occurrence of hyperinsulinaemic hypoglycaemia and polycystic kidney disease (HIPKD in 17 children from 11 unrelated families. Patients presented with hyperinsulinaemic hypoglycaemia in infancy and enlarged kidneys with multiple kidney cysts. Some progressed to ESKD and some had liver cysts. Whole-genome linkage analysis in 5 informative families identified a single significant locus on chromosome 16p13.2. Sequencing of the coding regions of all linked genes failed to identify biallelic mutations. Instead, they found in all patients a promoter mutation (c.-167G>T) in PMM2, either homozygous or in trans with PMM2 coding mutations. They found deglycosylation in cultured pancreatic β cells altered insulin secretion. In vitro, the PMM2 promoter mutation associated with decreased transcriptional activity in patient kidney cells and impaired binding of the transcription factor ZNF143. In silico analysis suggested an important role of ZNF143 for the formation of a chromatin loop including PMM2. They proposed that the PMM2 promoter mutation alters tissue-specific chromatin loop formation, with consequent organ-specific deficiency of PMM2 leading to the restricted phenotype of HIPKD. None of the patients exhibited the typical clinical or diagnostic features of CDG1A. Serum transferrin glycosylation was normal in 11 patients who had assessment.; Changed publications: 28108845, 28373276, 32595772; Changed phenotypes: Congenital disorder of glycosylation, type Ia (MIM#212065), Hyperinsulinaemic Hypoglycaemia and Polycystic Kidney Disease (HIPKD), MONDO:0020642, PMM2-related
Mendeliome v1.171 SLCO2A1 Zornitza Stark edited their review of gene: SLCO2A1: Added comment: PMID 29313109: Over 40 Japanese individuals reported with bi-allelic variants in this gene and multiple small intestinal ulcers of nonspecific histology. Some overlap with the hypertrophic osteoarthropathy also associated with bi-allelic variants in this gene. Mild digital clubbing or periostosis was found in 13 patients (28%), with five male patients fulfilling the major diagnostic criteria of PHO.; Changed publications: 23509104, 27134495, 33852188, 22331663, 27134495, 29313109; Changed phenotypes: Hypertrophic osteoarthropathy, primary, autosomal dominant, MIM# 167100, Hypertrophic osteoarthropathy, primary, autosomal recessive 2, MIM# 614441, Inflammatory bowel disease, MONDO:0005265, SLCO2A1-related
Mendeliome v1.169 C20orf24 Zornitza Stark gene: C20orf24 was added
gene: C20orf24 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: C20orf24 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: C20orf24 were set to 35614220; 24194475
Phenotypes for gene: C20orf24 were set to Craniofacial dysmorphism, skeletal anomalies, and impaired intellectual development syndrome 2, MIM# 616994
Review for gene: C20orf24 was set to RED
Added comment: Bi-allelic LoF variant identified in patient originally reported in PMID 24194475.

HGNC approved name is RAB5IF.
Sources: Literature
Mendeliome v1.165 IL23R Zornitza Stark edited their review of gene: IL23R: Added comment: PMID 35829840: 48yo male with disseminated NTM homozygous (p.R381X) with supportive functional data.; Changed rating: AMBER; Changed publications: 30578351, 35829840
Mendeliome v1.164 HYOU1 Zornitza Stark edited their review of gene: HYOU1: Added comment: Second individual reported in PMID: 35822684 with severe neutropenia.; Changed rating: AMBER; Changed publications: 27913302, 35822684; Changed phenotypes: Immunodeficiency 59 and hypoglycemia, MIM# 233600
Mendeliome v1.161 GINS3 Zornitza Stark gene: GINS3 was added
gene: GINS3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GINS3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GINS3 were set to 35603789
Phenotypes for gene: GINS3 were set to Meier-Gorlin syndrome, MONDO:0016817, GINS3-related
Review for gene: GINS3 was set to GREEN
Added comment: 7 individuals from 5 families reported, presenting with prenatal and postnatal growth deficiency as well as other features. Three unique missense variants identified, two affecting p.Asp24. These variants are thought to be hypomorphic. Supportive mouse model.
Sources: Literature
Mendeliome v1.158 C9orf84 Zornitza Stark changed review comment from: 8 families reported with bi-allelic variants in this gene and spermatogenic failure.
Sources: Literature; to: 8 families reported with bi-allelic variants in this gene and spermatogenic failure. A male germ cell-specific Shoc1 knockout mouse model recapitulates the phenotype (germline knockout: early lethality).

HGNC approved name is SHOC1.

Sources: Literature
Mendeliome v1.158 C9orf84 Zornitza Stark gene: C9orf84 was added
gene: C9orf84 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: C9orf84 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: C9orf84 were set to 32741963; 32900840; 35485979
Phenotypes for gene: C9orf84 were set to Spermatogenic failure 75, MIM# 619949
Review for gene: C9orf84 was set to GREEN
Added comment: 8 families reported with bi-allelic variants in this gene and spermatogenic failure.
Sources: Literature
Mendeliome v1.155 KMT2B Zornitza Stark edited their review of gene: KMT2B: Added comment: Nine individuals reported in PMID 33150406 with heterozygous variants in this gene and intellectual disability, speech delay, microcephaly, growth delay, feeding problems, and dysmorphic features, including epicanthic folds, posteriorly rotated ears, syndactyly/clinodactyly of toes, and fifth finger clinodactyly, normal MRIs and NO dystonia.; Changed publications: 27839873, 27992417, 33150406; Changed phenotypes: Dystonia 28, childhood-onset 617284, MONDO:0015004, Intellectual developmental disorder, autosomal dominant 68, MIM# 619934
Mendeliome v1.142 HCK Zornitza Stark gene: HCK was added
gene: HCK was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: HCK was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: HCK were set to 34536415
Phenotypes for gene: HCK were set to Autoinflammatory syndrome, MONDO:0019751, HCK-related
Mode of pathogenicity for gene: HCK was set to Other
Review for gene: HCK was set to AMBER
Added comment: Single patient with supportive functional data.
Sources: Literature
Mendeliome v1.140 TBX21 Zornitza Stark changed review comment from: Single individual reported with disseminated disease following BCG vaccination, who subsequently developed severe persistent reactive airway disease and eosinophilia that responded to steroid treatment. Homozygous variant identified.

Association with asthma and nasal polyps pertains to promoter SNPs.; to: Single individual reported with disseminated disease following BCG vaccination, who subsequently developed severe persistent reactive airway disease and eosinophilia that responded to steroid treatment. Homozygous variant identified. Functional data.

Association with asthma and nasal polyps pertains to promoter SNPs.
Mendeliome v1.134 PIK3C2B Krithika Murali gene: PIK3C2B was added
gene: PIK3C2B was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PIK3C2B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PIK3C2B were set to PMID:35786744
Phenotypes for gene: PIK3C2B were set to familial partial epilepsy - MONDO#0017704
Review for gene: PIK3C2B was set to AMBER
Added comment: No OMIM gene disease association.

Gozzelino et al.(2022) Brain - report enrichment of ultra-rare PIK3C2B variants in focal epilepsy cohorts, including one variant shown to be de novo (G1294Q). Segregation data not provided for all cases. The p.G1345S variant was inherited from an affected father. The p.K584* variant was inherited from an unaffected father suggesting incomplete penetrance. Functional studies supported a LoF mechanism and mouse model studies suggestive of mTORC1 pathway hyperactivation.
Sources: Literature
Mendeliome v1.134 CCDC155 Melanie Marty gene: CCDC155 was added
gene: CCDC155 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CCDC155 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CCDC155 were set to 35674372; 35708642; 29790874; 35587281
Phenotypes for gene: CCDC155 were set to Non-obstructive azoospermia; Premature ovarian insufficiency
Review for gene: CCDC155 was set to GREEN
Added comment: Current HGNC name is KASH5

Summary: 4 families reported with non-obstructive azoospermia or premature ovarian insufficiency. Functional studies have been performed and mouse models recapitulate the phenotype.

PMID: 35674372 CNV and frameshift variants in KASH5 were identified in a non-obstructive azoospermia affected patient and in his infertile sister by whole-exome sequencing and CNV array. Kash5 knockout mouse displayed similar phenotypes, including a meiotic arrest at a zygotene-like stage and impaired pairing and synapsis.

PMID: 35708642 Hom splice identified in KASH5 in 2 sisters with premature ovarian insufficiency. In vitro studies found the variant disturbed the nuclear membrane localization of KASH5 and its binding with SUN1. Moreover, the Kash5 C-terminal deleted mice revealed defective meiotic homolog pairing and accelerated depletion of oocytes.

PMID: 29790874 2 brothers with non-obstructive azoospermia with hom missense in CCDC155

35587281 2 siblings with hom missense in CCDC155 non-obstructive azoospermia and premature ovarian insufficiency.
Sources: Literature
Mendeliome v1.130 SLC30A7 Naomi Baker gene: SLC30A7 was added
gene: SLC30A7 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SLC30A7 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SLC30A7 were set to PMID: 35751429
Phenotypes for gene: SLC30A7 were set to Joubert syndrome (MONDO:0018772), SLC30A7-related
Review for gene: SLC30A7 was set to AMBER
Added comment: PMID: 35751429: Two individuals reported with de novo variants, one missense and one delins resulting in missense. The first individual is a female with history of unilateral postaxial polydactyly, classic molar tooth sign on MRI, macrocephaly, ataxia, ocular motor apraxia, neurodevelopmental delay, and precocious puberty. The second individual had bilateral postaxial polydactyly, molar tooth sign, macrocephaly, developmental delay, and an extra oral frenulum. No functional studies reported.
Sources: Literature
Mendeliome v1.128 PABPC1 Elena Savva gene: PABPC1 was added
gene: PABPC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PABPC1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: PABPC1 were set to PMID: 35511136
Phenotypes for gene: PABPC1 were set to Neurodevelopmental disorder, PABPC1-related (MONDO#0700092)
Review for gene: PABPC1 was set to GREEN
Added comment: PMID: 35511136 - 4 probands with an overlapping phenotype of DD, expressive speech delay, and autistic features and heterozygous de novo variants that cluster in the PABP domain of PABPC1.
Electroporation of mouse embryo brains showed that Pabpc1 knockdown decreases the proliferation of neural progenitor cells. Wild-type Pabpc1 could rescue this disturbance, whereas 3 of the 4 variants did not.
Sources: Literature
Mendeliome v1.125 WNT7B Zornitza Stark gene: WNT7B was added
gene: WNT7B was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: WNT7B was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: WNT7B were set to 35790350
Phenotypes for gene: WNT7B were set to Pulmonary hypoplasia, Diaphragmatic anomalies, Anophthalmia/microphthalmia and Cardiac defects syndrome; Multiple congenital anomalies/dysmorphic features syndrome MONDO:0043005, WNT7B-related
Review for gene: WNT7B was set to GREEN
Added comment: Three families reported with fetuses with multiple congenital anomalies and bi-allelic LoF variants. Two of the families had at the same variant. Supportive zebrafish model.
Sources: Literature
Mendeliome v1.121 MAL Zornitza Stark gene: MAL was added
gene: MAL was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MAL was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MAL were set to 35217805
Phenotypes for gene: MAL were set to Leukodystrophy MONDO:0019046, MAL-related
Review for gene: MAL was set to AMBER
Added comment: Single family with two affected siblings reported, with homozygous missense variant, some functional data.
Sources: Literature
Mendeliome v1.119 RELN Zornitza Stark edited their review of gene: RELN: Added comment: PMID 35769015: 13 individuals from seven families with monoallelic (heterozygous) variants of RELN and frontotemporal or temporal-predominant lissencephaly variant. Some individuals with monoallelic variants had moderate frontotemporal lissencephaly, but with normal cerebellar structure and intellectual disability with severe behavioural dysfunction. However, one adult had abnormal MRI with normal intelligence and neurological profile. Additional 7 individuals from 4 families with bi-allelic variants.; Changed publications: 35769015
Mendeliome v1.119 TAF8 Zornitza Stark changed review comment from: 8 individuals reported from 5 families, four of which were consanguineous. Clinical features included severe psychomotor retardation with almost absent development, feeding problems, microcephaly, growth retardation, spasticity and epilepsy. Six had the c.781-1G > A variant in homozygous state. This is likely to be a founder variant. One family with different compound heterozygous variants.
Sources: Literature; to: 8 individuals reported from 5 families, four of which were consanguineous. Clinical features included severe psychomotor retardation with almost absent development, feeding problems, microcephaly, growth retardation, spasticity and epilepsy. Six had the c.781-1G > A variant in homozygous state. Unclear if this is a founder variant, families of different ethnicities. One family with different compound heterozygous variants.
Sources: Literature
Mendeliome v1.118 TAF8 Zornitza Stark gene: TAF8 was added
gene: TAF8 was added to Mendeliome. Sources: Literature
founder tags were added to gene: TAF8.
Mode of inheritance for gene: TAF8 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TAF8 were set to 29648665; 35759269
Phenotypes for gene: TAF8 were set to Neurodevelopmental disorder, MONDO:0700092, TAF8-related
Review for gene: TAF8 was set to GREEN
Added comment: 8 individuals reported from 5 families, four of which were consanguineous. Clinical features included severe psychomotor retardation with almost absent development, feeding problems, microcephaly, growth retardation, spasticity and epilepsy. Six had the c.781-1G > A variant in homozygous state. This is likely to be a founder variant. One family with different compound heterozygous variants.
Sources: Literature
Mendeliome v1.114 PNPT1 Zornitza Stark edited their review of gene: PNPT1: Added comment: Three families reported with heterozygous variants and SCA25. Incomplete penetrance in one of the families. In the third family, the variant was inherited from an asymptomatic 80+ year old. Note bi-allelic variants in this gene cause a mitochondrial disorder. Exact mechanism through which mono-allelic variants cause SCA25 not elucidated: authors speculate abnormal accumulation of mitochondrial RNA with subsequent leakage into the cytosol that may trigger a type 1 interferon response leading to neuroinflammation with neuronal dysfunction or neuronal loss.; Changed rating: AMBER; Changed publications: 35411967; Changed phenotypes: Spinocerebellar ataxia 25, MIM# 608703; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v1.113 CXCR2 Zornitza Stark edited their review of gene: CXCR2: Added comment: 4 unrelated patients with neutropaenia reported.; Changed rating: GREEN; Changed publications: 24777453, 34854278; Changed phenotypes: WHIM syndrome 2, MIM#619407
Mendeliome v1.112 RHOG Zornitza Stark gene: RHOG was added
gene: RHOG was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RHOG was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RHOG were set to 33513601
Phenotypes for gene: RHOG were set to Genetic HLH, MONDO:0015541, RHOG-related
Review for gene: RHOG was set to AMBER
Added comment: Single individual reported, extensive functional data supports gene-disease association.
Sources: Literature
Mendeliome v1.108 CD28 Zornitza Stark changed review comment from: Rare homozygous CD28 variant segregates with severe verrucosis in three relatives and supportive functional data.
Sources: Expert Review; to: Rare homozygous CD28 variant segregates with severe verrucosis in three relatives and supportive functional data. CD28-deficient mice are susceptible to cutaneous infections with the mouse papillomavirus MmuPV1.
Sources: Expert Review
Mendeliome v1.108 CD28 Zornitza Stark gene: CD28 was added
gene: CD28 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: CD28 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CD28 were set to 34214472
Phenotypes for gene: CD28 were set to Hereditary predisposition to infections, MONDO:0015979, CD28-related; isolated susceptibility to cutaneous α- and γ-HPVs
Review for gene: CD28 was set to RED
Added comment: Rare homozygous CD28 variant segregates with severe verrucosis in three relatives and supportive functional data.
Sources: Expert Review
Mendeliome v1.104 TSPAN7 Zornitza Stark edited their review of gene: TSPAN7: Added comment: Two families reported with LoF variants and ID: Abidi FE et al. 2002 Jun (PMID:12070254); Zemni R et al. 2000 Feb (PMID:10655063)

Assessed as MODERATE by ClinGen.; Changed rating: AMBER; Changed publications: 12070254, 10655063
Mendeliome v1.89 DDR2 Zornitza Stark changed review comment from: Bi-allelic variants in this gene are associated with a severe perinatal skeletal dysplasia.

Mono-allelic variants cause Warburg-Cinotti syndrome, which is characterized by progressive corneal neovascularization, keloid formation, chronic skin ulcers, wasting of subcutaneous tissue, flexion contractures of the fingers, and acroosteolysis. Four unrelated families reported with missense variants, which were activating.; to: Bi-allelic variants in this gene are associated with a severe perinatal skeletal dysplasia. LoF.

Mono-allelic variants cause Warburg-Cinotti syndrome, which is characterized by progressive corneal neovascularization, keloid formation, chronic skin ulcers, wasting of subcutaneous tissue, flexion contractures of the fingers, and acroosteolysis. Four unrelated families reported with missense variants, which were activating. GoF.
Mendeliome v1.82 GRIA1 Zornitza Stark edited their review of gene: GRIA1: Added comment: Single individual reported with bi-allelic LoF variant. RED/AMBER for bi-allelic variants.; Changed publications: 28628100, 23033978, 26350204, 24896178, 35675825; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v1.75 KCNA5 Zornitza Stark edited their review of gene: KCNA5: Added comment: Multiple families reported. At least one with LoF variant, rest missense. The missense variants are present in the population, ranging from 2 to 40 individuals in gnomad, which raises doubt about their pathogenicity.; Changed rating: AMBER
Mendeliome v1.66 PRDM13 Zornitza Stark edited their review of gene: PRDM13: Added comment: Note only single family reported with Cerebellar dysfunction, impaired intellectual development, and hypogonadotropic hypogonadism, MIM# 61976 -- this likely lies on the same spectrum as Pontocerebellar hypoplasia, type 17, MIM# 619909 rather than being a distinct disorder.; Changed publications: 30710461, 34730112; Changed phenotypes: Retinal dystrophy, Chorioretinal atrophy, progressive bifocal, MIM# 600790, Pontocerebellar hypoplasia, type 17, MIM# 619909, Cerebellar dysfunction, impaired intellectual development, and hypogonadotropic hypogonadism, MIM# 61976; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v1.61 SLC5A6 Zornitza Stark changed review comment from: Two unrelated families reported, functional data and some evidence of response to treatment.
Sources: Literature; to: Complex neurodegenerative disorder: Two unrelated families reported, functional data and some evidence of response to treatment.
Sources: Literature
Mendeliome v1.61 SLC5A6 Zornitza Stark edited their review of gene: SLC5A6: Added comment: PMID 35013551: 5 individuals from 3 unrelated families reported with predominantly neuropathy phenotype.; Changed publications: 31754459, 27904971, 35013551; Changed phenotypes: Peripheral motor neuropathy, childhood-onset, biotin-responsive, MIM# 619903, Neurodegeneration, infantile-onset, biotin-responsive, MIM# 618973
Mendeliome v1.47 PAN2 Naomi Baker gene: PAN2 was added
gene: PAN2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PAN2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PAN2 were set to PMID:35304602; 29620724
Phenotypes for gene: PAN2 were set to Neurodevelopmental disorder, MONDO:0700092, PAN2-related
Review for gene: PAN2 was set to GREEN
Added comment: PMID:35304602 reports five individuals from 3 families with biallelic (homozygous) loss-of-function variants. Clinical presentation incudes mild-moderate intellectual disability, hypotonia, sensorineural hearing loss, EEG abnormalities, congenital heart defects (tetralogy of Fallot, septal defects, dilated aortic root), urinary tract malformations, ophthalmological anomalies, short stature with other skeletal anomalies, and craniofacial features including flat occiput, ptosis, long philtrum, and short neck.

PMID:29620724 reports one individual with biallelic (homozygous) loss-of-function variant who presented with global developmental delay, mild hypotonia, craniosynostosis, severe early-onset scoliosis, imperforate anus, and double urinary collecting system.
Sources: Literature
Mendeliome v1.45 PTPN13 Ain Roesley gene: PTPN13 was added
gene: PTPN13 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PTPN13 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PTPN13 were set to 35643866
Phenotypes for gene: PTPN13 were set to bone marrow failure syndrome MONDO#0000159, PTPN13-related
Review for gene: PTPN13 was set to AMBER
gene: PTPN13 was marked as current diagnostic
Added comment: 2 families

Family A: 3 affecteds only 2 sequenced. Hom for a missense
3/3 Anaemia, 1x thrombocytopaenia, 1x severe neutropaenia, bone marrow with pure red cell aplasia
noted that the sibling who wasn't sequenced had normal bone marrow morphology

Family B: Chet for a missense and inframe del of 1 amino acid
Persistent hypogammaglobulinemia after transplant (at least 14 months after) with normal blood counts and Pre-B ALL with MLL rearrangement

In vitro studies of individual variants were LoF, including defective erythroid and megakaryocytic differentiation, consistent with anaemia and thrombocytopaenia reported in family A
Sources: Literature
Mendeliome v1.44 ATOH1 Chloe Stutterd gene: ATOH1 was added
gene: ATOH1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ATOH1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ATOH1 were set to 35518571
Phenotypes for gene: ATOH1 were set to Pontocerebellar hypoplasia; developmental delay; hearing loss
Penetrance for gene: ATOH1 were set to unknown
Review for gene: ATOH1 was set to AMBER
Added comment: Single report of novel homozygous missense variant in functional domain segregating with disease in two affected siblings with pontocerebellar hypoplasia, developmental delay and hearing loss. Similar phenotype previously reported in animal model with biallelic missense variant affecting same functional domain. Homology modelling predicts this missense variant affects binding capability of the bHLH domain to the DNA. Gene encodes a core transcription factor in developing cerebellum, brainstem, dorsal spinal cord and ear.
Sources: Literature
Mendeliome v1.44 BUB1 Paul De Fazio gene: BUB1 was added
gene: BUB1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: BUB1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: BUB1 were set to 35044816; 19772675; 19117986; 23209306
Phenotypes for gene: BUB1 were set to Intellectual disability and microcephaly
Review for gene: BUB1 was set to GREEN
gene: BUB1 was marked as current diagnostic
Added comment: 2 unrelated patients with ID, microcephaly, short stature, dysmorphic features reported with biallelic variants:

P1 (3yo male): homozygous start-loss variant (2 hets and 0 hom in gnomAD). Functional testing showed a small amount of full-length protein was translated, and BUB1 recruitment to kinetochores was nearly undetectable.
P2 (16yo female): compound heterozygous for a canonical splice variant (1 het and no hom in gnomAD) and an NMD-predicted frameshift variant (absent from gnomAD). The splice variant was shown to result in an in-frame deletion of 54 amino acids in the kinase domain. P2 cells have reduced protein levels but essentially no kinase activity.

BUB1 patient cells have impaired mitotic fidelity.

Homozygous Bub1 disruption in mice is embryonic lethal (PMID:19772675). A hypomorphic mouse is viable with increased tumourigenesis with ageing and aneuploidy (PMID:19117986). A kinase-dead mouse does not show increased tumourigenesis but does have a high frequency of aneuploid cells (PMID:23209306)
Sources: Literature
Mendeliome v1.44 LMOD2 Melanie Marty gene: LMOD2 was added
gene: LMOD2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: LMOD2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: LMOD2 were set to PMID: 31517052; PMID: 34888509; PMID: 35082396; PMID: 35188328; PMID: 26487682
Phenotypes for gene: LMOD2 were set to Dilated cardiomyopathy
Review for gene: LMOD2 was set to GREEN
Added comment: 4 unrelated families with early onset dilated cardiomyopathy, autosomal recessive inheritance, functional studies showing loss of protein and a mouse model reported.

PMID: 31517052 1 x neonate with DCM, homozygous nonsense variant identified.

PMID: 34888509 2 x neonatal deaths (from 1 family) related to dilated cardiomyopathy (DCM), compound heterozygous loss-of-function variants identified.

PMID:35082396 2 x siblings with DCM who died shortly after birth due to heart failure, homozygous canonical splice variant identified. Functional studies show loss of donor site and loss of protein.

PMID: 35188328 1 x child (9 months) with DCM, with homozygous frameshift variant. Functional studies showed absence of LMOD2 protein (western blot).

PMID: 26487682 Lmod2 null (knockout) mice present with short cardiac thin filaments and die at ~3 weeks due to dysfunctional, dilated hearts
Sources: Literature
Mendeliome v1.34 TRIM47 Zornitza Stark gene: TRIM47 was added
gene: TRIM47 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TRIM47 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: TRIM47 were set to 35511193
Phenotypes for gene: TRIM47 were set to Genetic cerebral small vessel disease MONDO:0018787
Review for gene: TRIM47 was set to RED
Added comment: GWAS data: Combined evidence from summary-based Mendelian randomization studies and profiling of human loss-of-function allele carriers showed an inverse relation between TRIM47 expression in the brain and blood vessels and extensive small vessel disease severity. Observed significant enrichment of Trim47 in isolated brain vessel preparations compared to total brain fraction in mice, in line with the literature showing Trim47 enrichment in brain endothelial cells at single cell level. Functional evaluation of TRIM47 by small interfering RNAs-mediated knockdown in human brain endothelial cells showed increased endothelial permeability, an important hallmark of cerebral small vessel disease pathology.
Sources: Literature
Mendeliome v1.15 IKBKG Zornitza Stark edited their review of gene: IKBKG: Added comment: X-linked systemic autoinflammatory disease (SAIDX) is characterized by the onset of systemic autoinflammation in the first months of life. Features include lymphadenopathy, hepatosplenomegaly, fever, panniculitis, and nodular skin rash. Additional manifestations may include inflammation of the optic nerve, intracranial hemorrhage, and lipodystrophy. Laboratory studies show hypogammaglobulinemia, increased or decreased white blood cell count, autoimmune cytopenias, elevated serum inflammatory markers, and a type I interferon signature. 6 unrelated boys and a girl reported. All variants resulted in absence of the domain encoded by exon 5 (NEMOdelEx5).

Note variants in this gene are associated with immunodeficiency +/- ectodermal features and with IP.; Changed phenotypes: Ectodermal dysplasia and immunodeficiency 1, MIM# 300291, Immunodeficiency 33 , MIM#300636, Incontinentia pigmenti, MIM# 308300, Autoinflammatory disease, systemic, X-linked, MIM# 301081
Mendeliome v1.14 MYO9A Zornitza Stark edited their review of gene: MYO9A: Added comment: This gene-disease association has been reviewed as part of GenCC discordance resolution: note at least two of the variants reported have homozygotes with gnomad, which would be out of keeping for a severe paediatric disorder.; Changed rating: AMBER
Mendeliome v1.11 COPB2 Zornitza Stark Phenotypes for gene: COPB2 were changed from Microcephaly 19, primary, autosomal recessive, MIM# 617800; Osteoporosis and developmental delay to Microcephaly 19, primary, autosomal recessive, MIM# 617800; Osteoporosis, childhood- or juvenile-onset, with developmental delay, MIM# 619884
Mendeliome v1.3 RDH11 Zornitza Stark edited their review of gene: RDH11: Added comment: 2nd case reported: 1 Chinese patient with retinitis pigmentosa, juvenile cataracts, intellectual disability, and myopathy. Trio-based WES and whole genomic CNV detection found compound heterozygous variants in RDH11 (p.Leu313Pro and c.75-3C>A) with biparental inheritance. Variant c.75-3C>A was confirmed to be a splice-site mutation by cDNA sequencing. It caused exon 2 skipping, resulting in a frameshift mutation and premature translation termination (p.Lys26Serfs*38). They found mislocalization of RDH11 protein in muscle cells of the patient by using immunofluorescence staining. Retinol dehydrogenase 11 (RDH11) is an 11-cis-retinol dehydrogenase that has a well-characterized, albeit auxiliary role in the retinoid cycle. Diseases caused by mutations in the RDH11 gene are very rare, and only one affected family with eye and intelligence involvement has been reported.; Changed rating: AMBER; Changed publications: 24916380, 15634683, 30731079, 18326732, 34988992
Mendeliome v0.14736 EPOR Zornitza Stark Marked gene: EPOR as ready
Mendeliome v0.14736 EPOR Zornitza Stark Gene: epor has been classified as Green List (High Evidence).
Mendeliome v0.14677 GIF Zornitza Stark Phenotypes for gene: GIF were changed from to Intrinsic factor deficiency MIM#261000; Disorders of cobalamin absorption, transport and metabolism
Mendeliome v0.14672 TIA1 Elena Savva Phenotypes for gene: TIA1 were changed from Amyotrophic lateral sclerosis 26 with or without frontotemporal dementia, MIM# 619133; Welander distal myopathy (MIM#604454) to Amyotrophic lateral sclerosis 26 with or without frontotemporal dementia, MIM# 619133; Welander distal myopathy (MIM#604454)
Mendeliome v0.14667 TIA1 Elena Savva Phenotypes for gene: TIA1 were changed from to Amyotrophic lateral sclerosis 26 with or without frontotemporal dementia, MIM# 619133; Welander distal myopathy (MIM#604454)
Mendeliome v0.14662 LRP5 Krithika Murali reviewed gene: LRP5: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Exudative vitreoretinopathy 4 - MIM#601813 (AD, AR), Hyperostosis, endosteal - MIM#144750 (AD), Osteopetrosis, autosomal dominant 1 - MIM#607634(AD), Osteoporosis-pseudoglioma syndrome - MIM#259770 (AR), Osteosclerosis - #144750 (AD), Polycystic liver disease 4 with or without kidney cysts - MIM#617875 (AD), van Buchem disease, type 2 - MIM#607636; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.14530 MMADHC Zornitza Stark Phenotypes for gene: MMADHC were changed from to Homocystinuria, cblD type, variant 1 MIM#277410; Methylmalonic aciduria and homocystinuria, cblD type MIM#277410; Methylmalonic aciduria, cblD type, variant 2 MIM#277410; Disorders of cobalamin absorption, transport and metabolism
Mendeliome v0.14527 MMACHC Zornitza Stark Phenotypes for gene: MMACHC were changed from to Methylmalonic aciduria and homocystinuria, cblC type MIM#277400; Disorders of cobalamin absorption, transport and metabolism
Mendeliome v0.14404 OPHN1 Zornitza Stark commented on gene: OPHN1: OPHN1 variants cause cerebellar hypoplasia and distinctive facial appearance, macrocephaly is a feature. At least 8 families reported.
Mendeliome v0.14341 UGT1A1 Zornitza Stark Phenotypes for gene: UGT1A1 were changed from to Bilirubin UDP-glucuronosyltransferase 1 deficiency (Disorders of bile acid metabolism and transport); Crigler-Najjar syndrome, type I 218800; Crigler-Najjar syndrome, type II 606785
Mendeliome v0.14331 UROD Zornitza Stark Phenotypes for gene: UROD were changed from to Porphyria cutanea tarda; Porphyria, hepatoerythropoietic (MIM#176100)
Mendeliome v0.14305 MTHFR Zornitza Stark Phenotypes for gene: MTHFR were changed from to Homocystinuria due to MTHFR deficiency MIM#236250; Disorders of folate metabolism and transport
Mendeliome v0.14291 DNAJC3 Krithika Murali changed review comment from: Well-established association with monogenic diabetes with growth restriction, hypothyroidism, neuropathy, sensorineural hearing loss and cerebellar ataxia also reported affected individuals (PMID 33486469 Lytrvi et al 2021 report 2 additional families and summarise the phenotypic features of 4 previously reported families).; to: Well-established association with monogenic diabetes. Growth restriction, hypothyroidism, neuropathy, sensorineural hearing loss and cerebellar ataxia also reported in affected individuals (PMID 33486469 Lytrvi et al 2021 report 2 additional families and summarise the phenotypic features of 4 previously reported families).
Mendeliome v0.14291 DSCAM Krithika Murali edited their review of gene: DSCAM: Added comment: No OMIM gene disease association. Variants predominantly identified from large cohort studies with limited phenotypic information. Associations with ID, ASD, Hirschsprung disease reported. One homozygous splice site variant reported with no parental phenotypes provided.

PMID 34253863 Lim et al 2021 - 12 yo proband with severe autism spectrum disorder diagnosed age 3, de novo heterozygous c.2051 del p.(L684X) variant identified (absent from gnomAD). Skin fibroblast human iPSC cells generated from proband and healthy controls. Forebrain-like induced neuronal cells showed reduced mRNA expression for NMDA-R subunits.

PMID 28600779 Monies et al 2017 - Homozygous splice site variant identified in proband from consanguineous Saudi family. Proband had growth restriction, microcephaly, developmental delay. Parental phenotype not provided.

PMID 30095639 and PMID 23671607 - report association between DSCAM polymorphisms and Hirschsprung disease in Chinese and European populations.

PMID 27824329 Wang et al 2016 - 2 denovo mutations in mixed ID/ASD cohort of 1,045; including comparison of previously published cases 6 LOF out of 4,998 cases.

PMID 28191889 2 denovo LOF in 13,407 mixed ID/ASD cases plus 4 previosly published cases our ot 6158; conclude denovo LOF enriched in cases vs controls

PMID 21904980; mouse model – het LOF mice show hydrocephalus, decreased motor function and impaired motor learning ability,

Evidence for missense lacking currently; Changed publications: 34253863, 32807774, 28600779, 21904980, 28191889, 27824329, 30095639, 23671607
Mendeliome v0.14256 WDR36 Zornitza Stark changed review comment from: Multiple individuals reported.

However, note one of the earliest reported variants p.Asp658Gly is present in >1,000 individuals in gnomad, and another, p.Ala449Thr is present in >2000.; to: Multiple individuals reported. Adult-onset.

However, note one of the earliest reported variants p.Asp658Gly is present in >1,000 individuals in gnomad, and another, p.Ala449Thr is present in >2000.
Mendeliome v0.14256 WDR36 Zornitza Stark changed review comment from: Multiple individuals reported.

However, note one of the earliest reported variants p.Asp658Gly is present in >1,000 individuals in gnomad.; to: Multiple individuals reported.

However, note one of the earliest reported variants p.Asp658Gly is present in >1,000 individuals in gnomad, and another, p.Ala449Thr is present in >2000.
Mendeliome v0.14185 FBP2 Zornitza Stark gene: FBP2 was added
gene: FBP2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: FBP2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: FBP2 were set to 33977262
Phenotypes for gene: FBP2 were set to Leukodystrophy, childhood-onset, remitting, MIM# 619864
Review for gene: FBP2 was set to AMBER
Added comment: 8 individuals from 3 generations in a single family reported with a variant in this gene. The children presented with episode of regression and leukodystrophy in early childhood, from which they made a slow recovery. The adults had a broad range of neurobehavioural phenotypes but also had leukodystrophy on imaging. Some functional data presented (in vitro).
Sources: Expert list
Mendeliome v0.14181 TLR7 Zornitza Stark edited their review of gene: TLR7: Added comment: SLE
XLD: only affected females reported; 4 individuals from three unrelated families. Mouse model.; Changed publications: 32706371, 35477763; Changed phenotypes: Immunodeficiency 74, COVID19-related, X-linked, MIM# 301051, Systemic lupus erythematosus 17, MIM# 301080; Changed mode of inheritance: X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Mendeliome v0.14134 SCN2A Zornitza Stark changed review comment from: Classically presents with seizures and DD/ID although a range of other manifestations reported, including movement abnormalities, including ataxia.; to: Classically presents with seizures and DD/ID although a range of other manifestations reported, including movement abnormalities, including ataxia. Rather than being discrete disorders, these probably represent a continuum of manifestations of a single brain channelopathy disorder.

Multiple families reported.
Mendeliome v0.14105 SLC16A1 Zornitza Stark Phenotypes for gene: SLC16A1 were changed from to Erythrocyte lactate transporter defect, MIM# 245340; Hyperinsulinemic hypoglycaemia, familial, 7, MIM# 610021; Monocarboxylate transporter 1 deficiency, MIM# 616095
Mendeliome v0.14102 SLC16A1 Zornitza Stark reviewed gene: SLC16A1: Rating: GREEN; Mode of pathogenicity: None; Publications: 25390740, 32170320; Phenotypes: Erythrocyte lactate transporter defect, MIM# 245340, Hyperinsulinemic hypoglycaemia, familial, 7, MIM# 610021, Monocarboxylate transporter 1 deficiency, MIM# 616095; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.14087 FLVCR1 Bryony Thompson edited their review of gene: FLVCR1: Added comment: At least 5 unrelated families reported with visual impairment and ataxia. Onset is usually in childhood.; Changed publications: 21070897, 22279524, 21267618; Changed phenotypes: posterior column ataxia-retinitis pigmentosa syndrome MONDO:0012177; Set current diagnostic: yes
Mendeliome v0.14064 GSN Zornitza Stark changed review comment from: The Finnish type of systemic amyloidosis is characterized clinically by a unique constellation of features including lattice corneal dystrophy, and cranial neuropathy, bulbar signs, and skin changes. Some patients may develop peripheral neuropathy and renal failure. The disorder is usually inherited in an autosomal dominant pattern; however, homozygotes with a more severe phenotype have also been reported.

Multiple families with same founder variant.; to: The Finnish type of systemic amyloidosis is characterized clinically by a unique constellation of features including lattice corneal dystrophy, and cranial neuropathy, bulbar signs, and skin changes. Some patients may develop peripheral neuropathy and renal failure. The disorder is usually inherited in an autosomal dominant pattern; however, homozygotes with a more severe phenotype have also been reported.

Multiple families with same founder variant, p.Asp187Asn, though other variants also reported.
Mendeliome v0.13973 LRP5 Alison Yeung Phenotypes for gene: LRP5 were changed from to Exudative vitreoretinopathy 4, MIM# 601813; Osteopetrosis, autosomal dominant 1, MIM# 607634; Osteoporosis-pseudoglioma syndrome, MIM# 259770; Osteosclerosis, MIM# 144750; Polycystic liver disease 4 with or without kidney cysts, MIM# 617875
Mendeliome v0.13919 DGUOK Zornitza Stark Phenotypes for gene: DGUOK were changed from to Mitochondrial DNA depletion syndrome 3 (hepatocerebral type), MIM# 251880; Portal hypertension, noncirrhotic, 1, MIM# 617068; Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal recessive 4, MIM# 617070
Mendeliome v0.13916 DGUOK Zornitza Stark reviewed gene: DGUOK: Rating: GREEN; Mode of pathogenicity: None; Publications: 11687800, 12874104, 15887277, 23043144, 26874653; Phenotypes: Mitochondrial DNA depletion syndrome 3 (hepatocerebral type), MIM# 251880, Portal hypertension, noncirrhotic, 1, MIM# 617068, Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal recessive 4, MIM# 617070; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.13843 DARS2 Zornitza Stark changed review comment from: Slowly progressive disorder with variable age of onset, multiple families reported.; to: Leukoencephalopathy with brainstem and spinal cord involvement and lactate elevation (LBSL) is defined on the basis of a highly characteristic constellation of abnormalities observed by magnetic resonance imaging and spectroscopy (Scheper et al., 2007). Affected individuals develop slowly progressive cerebellar ataxia, spasticity, and dorsal column dysfunction, sometimes with a mild cognitive deficit or decline.
Mendeliome v0.13825 HNRNPA2B1 Zornitza Stark Phenotypes for gene: HNRNPA2B1 were changed from Inclusion body myopathy with early-onset Paget disease with or without frontotemporal dementia 2 MIM#615422 to oculopharyngeal muscular dystrophy, MONDO:0008116; Inclusion body myopathy with early-onset Paget disease with or without frontotemporal dementia 2 MIM#615422
Mendeliome v0.13799 NRG1 Alison Yeung Added comment: Comment on list classification: Red for peripheral neuropathy (single family reported)
Amber for Hirschsprung disease
Mendeliome v0.13792 CD164 Alison Yeung gene: CD164 was added
gene: CD164 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CD164 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CD164 were set to 26197441; 35254497; 26197441
Phenotypes for gene: CD164 were set to Deafness, autosomal dominant 66, MIM# 616969
Review for gene: CD164 was set to GREEN
Added comment: p.(Arg192Ter), a truncating variant that results in loss of 6 amino acids, was detected in two families (one Polish and one Korean) with hearing loss. Four affected (heterozygous) and two unaffected (neg) were tested, however 14 members had been diagnosed with HL in a large multi generational family (gene panel 237 genes). The second family (WES) had two affected heterozygous and no unaffected were tested. This same variant had previously been reported in a Danish family (12 affected heterozygous and 13 unaffected negative, but one younger member unaffected are heterozygous) with hearing loss (PMID: 26197441), for which functional studies in HEK cells demonstrated that the truncated protein was almost completely retained on the plasma cell membrane in contrast to the wild-type protein, which targeted primarily to the endo-lysosomal compartments. The YHTL motif, deleted by the c.574C>T nonsense mutation, is a canonical sorting motif
known to be recognized by specific adaptor proteins in the cytosol, leading to subcellular trafficking of the transmembrane protein to endosomes and lysosomes.
Sources: Literature
Mendeliome v0.13789 DNAH14 Chern Lim gene: DNAH14 was added
gene: DNAH14 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DNAH14 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: DNAH14 were set to PMID: 35438214
Phenotypes for gene: DNAH14 were set to Neurodevelopmental disorder, DNAH14-related (MONDO#0700092)
Review for gene: DNAH14 was set to GREEN
gene: DNAH14 was marked as current diagnostic
Added comment: PMID: 35438214:
- Three previously unreported patients with compound heterozygous DNAH14 variants, including one nonsense, one frameshift, and four missense variants. A spectrum of neurological and developmental phenotypes was observed, including seizures, global developmental delay, microcephaly, and hypotonia.
Sources: Literature
Mendeliome v0.13787 TULP3 Anna Ritchie gene: TULP3 was added
gene: TULP3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TULP3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TULP3 were set to PMID: 35397207
Phenotypes for gene: TULP3 were set to progressive degenerative liver fibrosis with variable fibrocystic kidney disease; hypertrophic cardiomyopathy MONDO:0005045
Review for gene: TULP3 was set to GREEN
Added comment: 15 individuals from eight unrelated families with bi-allelic variants in TULP3 were detected. The affected individuals reported are mostly adults, in the 3rd through 7th decades of life, and presented with progressive degenerative liver fibrosis with variable fibrocystic kidney disease and hypertrophic cardiomyopathy.

The human phenotype was ecapitulated in adult zebrafish and confirmed disruption of critical ciliary cargo composition in several primary cell lines derived from affected individuals
Sources: Literature
Mendeliome v0.13781 PPFIBP1 Zornitza Stark gene: PPFIBP1 was added
gene: PPFIBP1 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: PPFIBP1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PPFIBP1 were set to https://www.medrxiv.org/content/10.1101/2022.04.04.22273309v1
Phenotypes for gene: PPFIBP1 were set to Neurodevelopmental disorder, MONDO:0700092
Review for gene: PPFIBP1 was set to GREEN
Added comment: 16 individuals from 10 unrelated families reported with moderate to profound developmental delay, often refractory early-onset epilepsy and progressive microcephaly. Drosophila model.
Sources: Expert Review
Mendeliome v0.13758 CPN1 Ain Roesley changed review comment from: only 1 probed reported thus far; to: only 1 proband reported thus far
Mendeliome v0.13722 CPOX Ain Roesley Phenotypes for gene: CPOX were changed from to Coproporphyria, MIM#121300; Harderoporphyria, MIM#121300
Mendeliome v0.13720 CPOX Ain Roesley reviewed gene: CPOX: Rating: GREEN; Mode of pathogenicity: None; Publications: 30828546, 28349448, 23582006, 24156084; Phenotypes: Coproporphyria, MIM#121300, Harderoporphyria, MIM#121300; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal; Current diagnostic: yes
Mendeliome v0.13699 HOXA1 Zornitza Stark changed review comment from: At least 10 families reported.

175-176insG is known as the Saudi Arabian variant, while 76C>T is known as the Native American variant.

Features include:
Conotruncal heart defects, Abnormalities of the internal carotid artery and other cerebral arteries, Abnormal skull base

Biallelic variants in this gene cause a syndrome affecting hindbrain development, with BSAS and ABDS allelic disorders.; to: Biallelic variants in this gene cause a syndrome affecting hindbrain development, with BSAS and ABDS allelic disorders.

At least 10 families reported.

175-176insG is known as the Saudi Arabian variant, while 76C>T is known as the Native American variant.

Features include:
Conotruncal heart defects, Abnormalities of the internal carotid artery and other cerebral arteries, Abnormal skull base

Mendeliome v0.13683 DUSP6 Krithika Murali changed review comment from: PMID: 23643382 Miraoui et al 2013 - - candidate gene study for genes in the FGFR1 pathway that may be associated with CHH, either as causative genes or disease modifiers. A cohort of 386 CHH individuals and 155 unaffected controls of European descent. A number of affected individuals included in this cohort already had known causative variants in CHH-associated genes. The coding exons and proximal introns (≥15 bp from splice sites) of FGF17, FGF18, IL17RD, DUSP6, SPRY2, SPRY4, and FLRT3 were amplified by PCR and determined by direct sequencing.

Summary of DUSP6 variants identified in this study
c.229 T>A p.(Phe77Ile) - absent gnomAD v2 and v3
c.545C>T p.(Ser182Phe) - 203 hets gnomad v2, 137 hets and 1 hom - v3 - identified in conjunction with FGFR1 variant in this individual
c.566A>G p.Asn189Ser - v2 57 hets, v3 29 hets (another individual identified with this variant and an SPRY4 variant)
c.1037C>T p.Thr346Met - 81 hets v2, 27 hets and 1 hom v3 (identified in conjunction with SPRY4 variant

No segregation information provided.

PMID: 23643382 - Dusp6 null mouse model reportedly has craniofacial defects and hearing defects, but no mention of hypogonadotropic hypogonadism. In 5 unrelated individuals with congenital hypogonadotropic hypogonadism 4 heterozygous missense were identified. In 3 of the probands, the DUSP6 mutation was accompanied by a heterozygous missense mutation in another HH-associated gene. 3 of the 4 variants have subpopulation allele frequencies in gnomAD v2.1 that are higher than expected for a dominant condition: p.Thr346Met (AJ AF 0.002797), p.Ser182Phe (NFE AF 0.001396), p.Asn189Ser (NFE AF 0.0003641). No functional assays were conducted.

PMID: 32389901 - 6 unrelated male Chinese Kallman syndrome cases with 4 DUSP6 missense variants. 2 of 4 variants have East Asian allele frequencies in gnomAD v2.1 that are higher than expected for a dominant condition: p.Pro188Leu (EAS AF 0.001203), p.Arg83Gln (EAS AF 0.001129). No functional assays conducted.; to: PMID: 23643382 Miraoui et al 2013 - - candidate gene study for genes in the FGFR1 pathway that may be associated with CHH, either as causative genes or disease modifiers. A cohort of 386 CHH individuals and 155 unaffected controls of European descent. A number of affected individuals included in this cohort already had known causative variants in CHH-associated genes. The coding exons and proximal introns (≥15 bp from splice sites) of FGF17, FGF18, IL17RD, DUSP6, SPRY2, SPRY4, and FLRT3 were amplified by PCR and determined by direct sequencing.

Summary of DUSP6 variants identified in this study
c.229 T>A p.(Phe77Ile) - absent gnomAD v2 and v3
c.545C>T p.(Ser182Phe) - 203 hets gnomad v2, 137 hets and 1 hom - v3 - identified in conjunction with FGFR1 variant in this individual
c.566A>G p.Asn189Ser - v2 57 hets, v3 29 hets (another individual identified with this variant and an SPRY4 variant)
c.1037C>T p.Thr346Met - 81 hets v2, 27 hets and 1 hom v3 (identified in conjunction with SPRY4 variant

No segregation information provided. Dusp6 null mouse model reportedly has craniofacial defects and hearing defects, but no mention of hypogonadotropic hypogonadism.

PMID: 32389901 - 6 unrelated male Chinese Kallman syndrome cases with 4 DUSP6 missense variants. 2 of 4 variants have East Asian allele frequencies in gnomAD v2.1 that are higher than expected for a dominant condition: p.Pro188Leu (EAS AF 0.001203), p.Arg83Gln (EAS AF 0.001129). No functional assays conducted.
Mendeliome v0.13683 DUSP6 Krithika Murali changed review comment from: 1 study cited by OMIM (Miraoui et al 2013) - heterozygous variants in 5 unrelated individuals with congenital hypogonadotrophic hypogonadism (CHH). 4/5 variants highly prevalent in healthy population and/or in conjunction with variants in other genes either known to be associated with CHH or possibly associated. No additional studies published since this paper.

PMID: 23643382 Miraoui et al 2013 - - candidate gene study for genes in the FGFR1 pathway that may be associated with CHH, either as causative genes or disease modifiers. A cohort of 386 CHH individuals and 155 unaffected controls of European descent. A number of affected individuals included in this cohort already had known causative variants in CHH-associated genes. The coding exons and proximal introns (≥15 bp from splice sites) of FGF17, FGF18, IL17RD, DUSP6, SPRY2, SPRY4, and FLRT3 were amplified by PCR and determined by direct sequencing.

Summary of DUSP6 variants identified in this study
c.229 T>A p.(Phe77Ile) - absent gnomAD v2 and v3
c.545C>T p.(Ser182Phe) - 203 hets gnomad v2, 137 hets and 1 hom - v3 - identified in conjunction with FGFR1 variant in this individual
c.566A>G p.Asn189Ser - v2 57 hets, v3 29 hets (another individual identified with this variant and an SPRY4 variant)
c.1037C>T p.Thr346Met - 81 hets v2, 27 hets and 1 hom v3 (identified in conjunction with SPRY4 variant

No segregation information provided.; to: PMID: 23643382 Miraoui et al 2013 - - candidate gene study for genes in the FGFR1 pathway that may be associated with CHH, either as causative genes or disease modifiers. A cohort of 386 CHH individuals and 155 unaffected controls of European descent. A number of affected individuals included in this cohort already had known causative variants in CHH-associated genes. The coding exons and proximal introns (≥15 bp from splice sites) of FGF17, FGF18, IL17RD, DUSP6, SPRY2, SPRY4, and FLRT3 were amplified by PCR and determined by direct sequencing.

Summary of DUSP6 variants identified in this study
c.229 T>A p.(Phe77Ile) - absent gnomAD v2 and v3
c.545C>T p.(Ser182Phe) - 203 hets gnomad v2, 137 hets and 1 hom - v3 - identified in conjunction with FGFR1 variant in this individual
c.566A>G p.Asn189Ser - v2 57 hets, v3 29 hets (another individual identified with this variant and an SPRY4 variant)
c.1037C>T p.Thr346Met - 81 hets v2, 27 hets and 1 hom v3 (identified in conjunction with SPRY4 variant

No segregation information provided.

PMID: 23643382 - Dusp6 null mouse model reportedly has craniofacial defects and hearing defects, but no mention of hypogonadotropic hypogonadism. In 5 unrelated individuals with congenital hypogonadotropic hypogonadism 4 heterozygous missense were identified. In 3 of the probands, the DUSP6 mutation was accompanied by a heterozygous missense mutation in another HH-associated gene. 3 of the 4 variants have subpopulation allele frequencies in gnomAD v2.1 that are higher than expected for a dominant condition: p.Thr346Met (AJ AF 0.002797), p.Ser182Phe (NFE AF 0.001396), p.Asn189Ser (NFE AF 0.0003641). No functional assays were conducted.

PMID: 32389901 - 6 unrelated male Chinese Kallman syndrome cases with 4 DUSP6 missense variants. 2 of 4 variants have East Asian allele frequencies in gnomAD v2.1 that are higher than expected for a dominant condition: p.Pro188Leu (EAS AF 0.001203), p.Arg83Gln (EAS AF 0.001129). No functional assays conducted.
Mendeliome v0.13669 COL6A1 Ain Roesley changed review comment from: Well established association

Both loss-of-function and dominant negative mechanism has been reported for this gene. Mutations result in a spectrum of disease, ranging from the milder Bethlem myopathy (monoallelic) to the more severe Ullrich congenital muscular dystrophy (biallelic) (PMID: 29277723; 24443028).
Sources: Literature; to: Well established association

Genereviews PMID:20301676

AD variants typically occur near the N terminal of the triple helical (TH) domain, which contains a critical region of 10 to 15 Gly-X-Y triplets; in-frame exon-skipping variants and glycine substitutions in this region tend to result in more severe phenotypes

AR variants are usually nonsense or fs, or biallelic variants located near the C-terminal end of the TH domain, where they will be excluded from assembly
Mendeliome v0.13668 COL4A4 Ain Roesley Phenotypes for gene: COL4A4 were changed from to Alport syndrome 2, autosomal recessive MIM#203780; Hematuria, familial benign MIM#141200
Mendeliome v0.13666 COL4A4 Ain Roesley reviewed gene: COL4A4: Rating: GREEN; Mode of pathogenicity: None; Publications: 20301386; Phenotypes: Alport syndrome 2, autosomal recessive MIM#203780, Hematuria, familial benign MIM#141200; Mode of inheritance: BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal; Current diagnostic: yes
Mendeliome v0.13666 COL4A3 Ain Roesley Phenotypes for gene: COL4A3 were changed from to Alport syndrome 2, autosomal recessive, MIM# 203780; Alport syndrome 3, autosomal dominant, MIM# 104200
Mendeliome v0.13665 COL4A3 Ain Roesley reviewed gene: COL4A3: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Alport syndrome 2, autosomal recessive, MIM# 203780, Alport syndrome 3, autosomal dominant, MIM# 104200; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal; Current diagnostic: yes
Mendeliome v0.13653 COL1A1 Ain Roesley changed review comment from: COL1A1 is mostly associated with osteogenesis imperfecta however, substitutions of arginine by cysteine in the triple helical domain) have been reported in individuals w/classic EDS & aneurysm & dissection of large vessels (PMID: 20301422;20301667)

The mild forms are usually caused by haploinsufficiency and result in a reduced amount of normal type I collagen, the severe and lethal forms result from dominant negative variants which produce structural defects in the collagen molecule (PMID:12362985).; to: COL1A1 is mostly associated with osteogenesis imperfecta however, substitutions of arginine by cysteine in the triple helical domain) have been reported in individuals w/classic EDS & aneurysm & dissection of large vessels (PMID: 20301422;20301667)

For skeletal phenotypes:
The mild forms are usually caused by haploinsufficiency and result in a reduced amount of normal type I collagen, the severe and lethal forms result from dominant negative variants which produce structural defects in the collagen molecule (PMID:12362985).
Mendeliome v0.13653 COL1A1 Ain Roesley changed review comment from: COL1A1 is mostly associated with osteogenesis imperfecta however, substitutions of arginine by cysteine in the triple helical domain) have been reported in individuals w/classic EDS & aneurysm & dissection of large vessels (PMID: 20301422;20301667); to: COL1A1 is mostly associated with osteogenesis imperfecta however, substitutions of arginine by cysteine in the triple helical domain) have been reported in individuals w/classic EDS & aneurysm & dissection of large vessels (PMID: 20301422;20301667)

The mild forms are usually caused by haploinsufficiency and result in a reduced amount of normal type I collagen, the severe and lethal forms result from dominant negative variants which produce structural defects in the collagen molecule (PMID:12362985).
Mendeliome v0.13649 COL17A1 Ain Roesley commented on gene: COL17A1: For Epithelial recurrent erosion dystrophy, AD:
Multiple families reported, c.3156C>T is recurrent.

For EB, AR:
well established association (GeneReviews PMID:20301304)
Mendeliome v0.13642 COASY Ain Roesley changed review comment from: Green for both NBIA and PCH; to: Green for both NBIA and PCH

only 2 variants reported for PCH - a fs (c.1549_1550delAG) and c.1486-3C>G (Recurrent)
Mendeliome v0.13642 HMBS Zornitza Stark Phenotypes for gene: HMBS were changed from to Porphyria, acute intermittent, MIM#176000; Porphyria, acute intermittent, non-erythroid variant, MIM#176000
Mendeliome v0.13640 HMBS Zornitza Stark reviewed gene: HMBS: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Porphyria, acute intermittent, MIM#176000, Porphyria, acute intermittent, non-erythroid variant, MIM#176000; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.13637 HK1 Zornitza Stark edited their review of gene: HK1: Added comment: Mono-allelic variants and ID: PMID30778173, 7 patients from 6 unrelated families with denovo missense variants in the N-terminal half of HK1

Mono-allelic variants and RP: Seven families reported with the same heterozygous missense variant, p.Glu847Lys and RP from different ethnicities. Some supportive evidence. Variant is present in 3 hets in gnomad.

Bi-allelic variants and haemolytic anaemia: more than 10 families reported.; Changed publications: 19536174, 30778173, 25316723, 25190649, 31621442, 32814480, 7655856, 12393545, 33361148, 31119733, 27282571; Changed phenotypes: Neuropathy, hereditary motor and sensory, Russe type , MIM#605285, Haemolytic anaemia due to hexokinase deficiency, MIM# 235700, Neurodevelopmental disorder with visual defects and brain anomalies, MIM# 618547, Retinitis pigmentosa 79, MIM# 617460; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.13613 RRAS Belinda Chong changed review comment from: Catts et al (2021) identified a 7-year-old boy with a history of craniosynostosis, congenital heart defect, and mild dysmorphic features who was incidentally found to have pediatric MDS with monosomy 7 in the context of previously unrecognized germline RRAS mutation. A heterozygous c.116_118dup (NM_006270.5) variant resulting in p.G39dup was identified and excluded in an unaffected sibling, and both parents.

Two individuals reported. One de novo variant, the inheritance of the other variant uncertain. Some supportive functional data. Rated as LIMITED by ClinGen (reviewed 27/04/2018).; to: Catts et al (2021) identified a 7-year-old boy with a history of craniosynostosis, congenital heart defect, and mild dysmorphic features who was incidentally found to have pediatric MDS with monosomy 7 in the context of previously unrecognized germline RRAS mutation. A heterozygous c.116_118dup (NM_006270.5) variant resulting in p.G39dup was identified and excluded in an unaffected sibling, and both parents.

Two individuals reported. One de novo variant, the inheritance of the other variant uncertain. Some supportive functional data. Rated as LIMITED by ClinGen (reviewed 27/04/2018).
Mendeliome v0.13585 LIPC Alison Yeung Added comment: Comment on mode of inheritance: PMID: 1671786, 12777476, 1883393, 22798447 - 7 cases from 3 unrelated families with hepatic lipase deficiency and biallelic variants.
PMID: 26423094 - null mouse had dyslipidemia on a high cholesterol and fat diet
PMID: 23219720, 22464213 - 2 cases with hyperalphalipoproteinemia and heterozygous variants, with supporting in vitro funcitonal assays
Mendeliome v0.13536 BTK Zornitza Stark commented on gene: BTK: Well established gene-disease association with agammaglobulinaemia, >100 families reported.

At least 3 families reported with GH deficiency plus agammaglobulinaemia.
Mendeliome v0.13422 TUBA8 Zornitza Stark changed review comment from: Two families reported initially (PMID 19896110). However, note that mouse model does not have a brain phenotype and WES in the original families identified homozygous, previously reported as pathogenic, LoF variant in SNAP29, which is much more likely to be causative (28388629).; to: Bi-allelic variants and cortical dysplasia: Two families reported initially (PMID 19896110). However, note that mouse model does not have a brain phenotype and WES in the original families identified homozygous, previously reported as pathogenic, LoF variant in SNAP29, which is much more likely to be causative (28388629).
Mendeliome v0.13401 PHIP Zornitza Stark changed review comment from: Chung-Jansen syndrome (CHUJANS) is characterized by global developmental delay apparent from infancy, impaired intellectual development or learning difficulties, behavioral abnormalities, dysmorphic features, and obesity.

More than 20 individuals reported.; to: Chung-Jansen syndrome (CHUJANS) is characterized by global developmental delay apparent from infancy, impaired intellectual development or learning difficulties, behavioural abnormalities, dysmorphic features, and obesity.

More than 20 individuals reported.
Mendeliome v0.13387 PIEZO2 Zornitza Stark changed review comment from: Bi-allelic variants: more than 5 unrelated families reported.

Mono-allelic variants:
DA5, more than 20 families reported.
DA3, more than 10 families reported, R2686H is recurrent.; to: Bi-allelic variants: more than 5 unrelated families reported.

Mono-allelic variants:
DA5, more than 20 families reported.
DA3, more than 10 families reported, R2686H is recurrent.
Marden-Walker: 2 families reported.
Mendeliome v0.13387 PIEZO2 Zornitza Stark changed review comment from: Bi-allelic variants: more than 5 unrelated families reported.

Mono-allelic variants:
DA5, more than 20 families reported.; to: Bi-allelic variants: more than 5 unrelated families reported.

Mono-allelic variants:
DA5, more than 20 families reported.
DA3, more than 10 families reported, R2686H is recurrent.
Mendeliome v0.13387 PIEZO2 Zornitza Stark changed review comment from: Bi-allelic variants: more than 5 unrelated families reported.

Mono-allelic variants:
DA3, more than 20 families reported.; to: Bi-allelic variants: more than 5 unrelated families reported.

Mono-allelic variants:
DA5, more than 20 families reported.
Mendeliome v0.13387 PIEZO2 Zornitza Stark changed review comment from: Bi-allelic variants: more than 5 unrelated families reported.; to: Bi-allelic variants: more than 5 unrelated families reported.

Mono-allelic variants:
DA3, more than 20 families reported.
Mendeliome v0.13384 BSCL2 Zornitza Stark edited their review of gene: BSCL2: Added comment: Multiple families reported with bi-allelic variants and isolated or syndromic lipodystrophy.

Mono-allelic variants and DEE: Two families reported with de novo variants in PMIDs 31369919 and 35290466. We are aware of further three individuals identified as a result of clinical testing, so a total of 4 with a change at position p.Pro149; Changed publications: 14981520, 15732094, 11479539, 15181077, 15126564, 23564749, 31369919, 35290466
Mendeliome v0.13370 CLEC7A Ain Roesley changed review comment from: Unable to find any mendelian disease association; to: Unable to find any mendelian disease association.

Reports of Tyr238* and it's association with {Aspergillosis, susceptibility to} MIM#614079 leading to candidiasis, familial, 4, autosomal recessive MIM#613108
Mendeliome v0.13346 PDYN Zornitza Stark Added comment: Comment when marking as ready: The presence of some of these variants in the population is concerning. However, functional data also supports gene-disease association.
Mendeliome v0.13327 BVES Zornitza Stark changed review comment from: PMID: 26642364 - 1 family (3 affecteds) with cardiac arrhythmia and limb-girdle muscular dystrophy. Supported by functional studies. The proband showed lower limb girdle weakness at ~40 years old with muscle biopsy proving dystrophic changes. His 2 affected grandchildren had onset in teenage years.

PMID: 32528171 - 1 patient with limb girdle weakness.

PMID: 31119192 - 3 families (4 affecteds) with limb-girdle muscular weakness and cardiac abnormalities/arrhythmia. All had onset in adulthood, with exercise intolerance or proximal weakness.; to: PMID: 26642364 - 1 family (3 affecteds) with cardiac arrhythmia and limb-girdle muscular dystrophy. Supported by functional studies: zebrafish model. The proband showed lower limb girdle weakness at ~40 years old with muscle biopsy proving dystrophic changes. His 2 affected grandchildren had onset in teenage years.

PMID: 32528171 - 1 patient with limb girdle weakness.

PMID: 31119192 - 3 families (4 affecteds) with limb-girdle muscular weakness and cardiac abnormalities/arrhythmia. All had onset in adulthood, with exercise intolerance or proximal weakness.
Mendeliome v0.13297 PDGFRA Krithika Murali changed review comment from: ?Suitability for Incidentalome versus Mendeliome based on adult age of diagnosis in reported cases.

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Six unrelated families reported with heterozygous germline variants associated with familial GIST and/or inflammatory fibroid polyps - IFP (benign lesions caused by excessive tissue proliferation and inflammatory cell infiltration into the lumen of the GI tract). Note that reported individuals diagnosed as adults. One individual reported with diagnosis of gastric mass/polyps age 22 (in 1977) raising the possibility of pre-symptomatic disease onset in adolescence. Green PanelApp England in the following panels: tumour predisposition - childhood onset; inherited predisposition to GIST; sarcoma cancer susceptibility.

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PMID 34107389 Hodan et al 2021 - report a 35 yo F with jejunal IFP and a heterozygous germline missense PDGFRA variant (c.1664A>G p.Y555C) . The variant segregated with 3 relatives with confirmed IFPs. Two obligate carriers were reported to have had a similar phenotype while at least one obligate male carrier had no reported history of IFPs. This variant was also reported in an unrelated family with multiple IFPs in 2006.

PMID 29486293 Manley et al 2018 - proband is a 50 yo M with multiple ileal intusussceptions and IFPs and GIST. Heterozygous D846V germline variant identified. Variant identified in daughter and 2 siblings. Coarser face, coarser skin, broader hands and feet, unexplained premature loss of teeth requiring dentures in their 40s described in relatives with the variant, no polyps or tumour identified in screened family members. Pdgfra +/K mutant mice recapitulated the human phenotype. Mice with the constitutively activated mutant PDGFRA shown to have diffuse expansion of the gastrointestinal submucosa, which exhibits an increased number of spindled fibroblast-like cells and marked collagen deposition. Mutant mice also develop intestinal polyps morphologically similar to IFPs. The Pdgfra +/K mice also exhibit thickened skin due to excess collagen deposition within the dermis and subcutaneous tissues.

PMID 25975287 Ricci et al 2015 - report a family with het germline P653L PDGFRA missense variant. The proband was a 67 yo M with multiple intra-abdominal GIST and gastric/colonic inflammatory fibroid polyps. Multiple adult relatives (youngest age 31) were diagnosed with IFPs/fibrous tumours with the variant segregating with disease.

PMID: 18670346 Carney et al 2008 and PMID: 17566086 Pasini et al 2007 - heterozygous germline PDGFRA mutation (V561D) in an individual with GIST and multiple polyps, diagnosed initially aged 22 with multiple GIST/polyps. No other relatives available for genotyping and no other significant family history reported.

PMID: 17087943 de Raedt et al 2006 - heterozygous PDGFRA(Y555C) variant reported in a family with multiple relatives affected by IFP, including one death from secondary bowel obstruction age 35.

PMID: 14699510 Chompret et al 2004 - Heterozygous c.2675G>T D846Y germline variant detected in a French family with 5 relatives developing adult-onset GIST, variant segregated with disease.

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Gain of function somatic variants associated with sporadic GIST. Somatic chromosomal rearrangements resulting in PDGFRA and FIP1L1 gene fusion associated with idiopathic hypereosinophilic syndrome.; to: Six unrelated families reported with heterozygous germline variants associated with familial GIST and/or inflammatory fibroid polyps - IFP (benign lesions caused by excessive tissue proliferation and inflammatory cell infiltration into the lumen of the GI tract). Note that reported individuals diagnosed as adults. One individual reported with diagnosis of gastric mass/polyps age 22 (in 1977) raising the possibility of pre-symptomatic disease onset in adolescence. Green PanelApp England in the following panels: tumour predisposition - childhood onset; inherited predisposition to GIST; sarcoma cancer susceptibility.

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PMID 34107389 Hodan et al 2021 - report a 35 yo F with jejunal IFP and a heterozygous germline missense PDGFRA variant (c.1664A>G p.Y555C) . The variant segregated with 3 relatives with confirmed IFPs. Two obligate carriers were reported to have had a similar phenotype while at least one obligate male carrier had no reported history of IFPs. This variant was also reported in an unrelated family with multiple IFPs in 2006.

PMID 29486293 Manley et al 2018 - proband is a 50 yo M with multiple ileal intusussceptions and IFPs and GIST. Heterozygous D846V germline variant identified. Variant identified in daughter and 2 siblings. Coarser face, coarser skin, broader hands and feet, unexplained premature loss of teeth requiring dentures in their 40s described in relatives with the variant, no polyps or tumour identified in screened family members. Pdgfra +/K mutant mice recapitulated the human phenotype. Mice with the constitutively activated mutant PDGFRA shown to have diffuse expansion of the gastrointestinal submucosa, which exhibits an increased number of spindled fibroblast-like cells and marked collagen deposition. Mutant mice also develop intestinal polyps morphologically similar to IFPs. The Pdgfra +/K mice also exhibit thickened skin due to excess collagen deposition within the dermis and subcutaneous tissues.

PMID 25975287 Ricci et al 2015 - report a family with het germline P653L PDGFRA missense variant. The proband was a 67 yo M with multiple intra-abdominal GIST and gastric/colonic inflammatory fibroid polyps. Multiple adult relatives (youngest age 31) were diagnosed with IFPs/fibrous tumours with the variant segregating with disease.

PMID: 18670346 Carney et al 2008 and PMID: 17566086 Pasini et al 2007 - heterozygous germline PDGFRA mutation (V561D) in an individual with GIST and multiple polyps, diagnosed initially aged 22 with multiple GIST/polyps. No other relatives available for genotyping and no other significant family history reported.

PMID: 17087943 de Raedt et al 2006 - heterozygous PDGFRA(Y555C) variant reported in a family with multiple relatives affected by IFP, including one death from secondary bowel obstruction age 35.

PMID: 14699510 Chompret et al 2004 - Heterozygous c.2675G>T D846Y germline variant detected in a French family with 5 relatives developing adult-onset GIST, variant segregated with disease.

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Gain of function somatic variants associated with sporadic GIST. Somatic chromosomal rearrangements resulting in PDGFRA and FIP1L1 gene fusion associated with idiopathic hypereosinophilic syndrome.
Mendeliome v0.13289 HSPG2 Zornitza Stark changed review comment from: Allelic disorders with some phenotypic overlap.

Schwartz-Jampel syndrome (SJS) is a rare autosomal recessive condition defined by the association of myotonia with chondrodysplasia; blepharophimosis is a key feature. More than 20 families reported.

Silverman-Handmaker dyssegmental dysplasia (DDSH) is a lethal autosomal recessive skeletal dysplasia with anisospondyly and micromelia. Individuals with DDSH also have a flat face, micrognathia, cleft palate and reduced joint mobility, and frequently have an encephalocele. The endochondral growth plate is short, the calcospherites (spherical calcium-phosphorus crystals produced by hypertrophic chondrocytes) are unfused, and there is mucoid degeneration of the resting cartilage. Two families reported.; to: Allelic disorders with some phenotypic overlap.

Schwartz-Jampel syndrome (SJS) is a rare autosomal recessive condition defined by the association of myotonia with chondrodysplasia; blepharophimosis is a key feature. More than 20 families reported.

Silverman-Handmaker dyssegmental dysplasia (DDSH) is a lethal autosomal recessive skeletal dysplasia with anisospondyly and micromelia. Individuals with DDSH also have a flat face, micrognathia, cleft palate and reduced joint mobility, and frequently have an encephalocele. The endochondral growth plate is short, the calcospherites (spherical calcium-phosphorus crystals produced by hypertrophic chondrocytes) are unfused, and there is mucoid degeneration of the resting cartilage. Two families reported. Appears associated with null variants.
Mendeliome v0.13266 PLEKHM1 Zornitza Stark changed review comment from: Three individuals reported with mono allelic variants, and one with bi-allelic. Animal model.; to: Three individuals reported with mono allelic variants, and two with bi-allelic. Animal models.
Mendeliome v0.13263 RSPH4A Belinda Chong changed review comment from: Radial spokes are regularly spaced along cilia, sperm, and flagella axonemes and have a multisubunit 'stalk' and 'head' that form a signal transduction scaffold between the central microtubule pair and dynein arms. RSPH4A is predicted to be a component of the radial spoke head based on homology with proteins in the biflagellate alga Chlamydomonas reinhardtii and other ciliates (Castleman et al., 2009; PMID19200523)

9 families with primary ciliary dyskinesia without situs inversus (Kott et al. 2013 (PMID:23993197), Castleman et al., 2009 (PMID19200523) and Daniels et al. 2013; (PMID:23798057)):
- In affected members of 4 Pakistani families with CILD11, Castleman et al. (2009) identified a homozygous mutation in the RSPH4A gene.
- In affected members of a family of northern European descent with CILD11, Castleman et al. (2009) identified compound heterozygosity for 2 mutations in the RSPH4A gene
- Kott et al. (2013) identified pathogenic mutations in the RSPH4A gene in 7 (14%) of 48 families with a specific CILD.

Common founder mutation:
- Daniels et al. (2013) identified a common founder mutation in the RSPH4A gene in 9 patients with CILD11, all of whom had Puerto Rican ancestry.

Multiple individuals in ClinVar with primary ciliary dyskinesia; to: Radial spokes are regularly spaced along cilia, sperm, and flagella axonemes and have a multisubunit 'stalk' and 'head' that form a signal transduction scaffold between the central microtubule pair and dynein arms. RSPH4A is predicted to be a component of the radial spoke head based on homology with proteins in the biflagellate alga Chlamydomonas reinhardtii and other ciliates (Castleman et al., 2009; PMID19200523)

9 families with primary ciliary dyskinesia without situs inversus (Kott et al. 2013 (PMID:23993197), Castleman et al., 2009 (PMID19200523) and Daniels et al. 2013; (PMID:23798057)):
- In affected members of 4 Pakistani families with CILD11, Castleman et al. (2009) identified a homozygous mutation in the RSPH4A gene.
- In affected members of a family of northern European descent with CILD11, Castleman et al. (2009) identified compound heterozygosity for 2 mutations in the RSPH4A gene
- Kott et al. (2013) identified pathogenic mutations in the RSPH4A gene in 7 (14%) of 48 families with a specific CILD.

Common founder mutation:
- Daniels et al. (2013) identified a common founder mutation in the RSPH4A gene in 9 patients with CILD11, all of whom had Puerto Rican ancestry.

Multiple individuals in ClinVar with primary ciliary dyskinesia

PMID: 25789548; Frommer 2015: 8 PCD families reported, only 4 different variants identified. Functional studies performed.

PMID: 22448264; Ziętkiewicz 2012: 4 additional families/variants reported.
Mendeliome v0.13245 PMPCB Zornitza Stark changed review comment from: Progressive disorder, includes ataxia. Four unrelated families reported.; to: Progressive disorder. Four unrelated families reported.
Mendeliome v0.13172 SH3BP2 Zornitza Stark commented on gene: SH3BP2: Cherubism is characterized by a loss of bone, restricted to the jaws, and by the replacement of this bone with fibrous tissues, leading to facial swelling. Involvement of the infraorbital rim and the orbital floor leads to the upward tilting of the eyeballs and consequent exposure of the inferior part of the sclerae, giving a 'cherubic' appearance. Submandibular lymph node enlargement is often reported. Functional impairment includes mastication and speech problems, tooth alterations, and loss of normal vision. Onset of the disease is usually between 14 months and 4 years of age. The disease progresses through puberty, then stabilizes, and in some cases regresses without treatment.
Mendeliome v0.13153 CC2D2A Zornitza Stark changed review comment from: Multiple families reported with a range of neurological ciliopathies; zebrafish and mouse models.; to: Multiple families reported with a range of neurological ciliopathies; zebrafish and mouse models.

Note single family reported with isolated RP.
Mendeliome v0.13141 FGF14 Bryony Thompson edited their review of gene: FGF14: Added comment: 4 families with spinocerebellar ataxia and 7 families with episodic ataxia. Supporting animal models for both SCA and EA.; Changed publications: 12123606, 12489043, 15470364, 29253853, 30017992, 32112487, 32162847; Changed phenotypes: spinocerebellar ataxia type 27 MONDO:0012247, hereditary episodic ataxia MONDO:0016227; Set current diagnostic: yes
Mendeliome v0.13121 FBP1 Bryony Thompson changed review comment from: Well-established gene-disease association. Fructose-1,6-bisphosphatase (FBP1) deficiency is metabolic disorder characterised by episodic acute crises of lactic acidosis and ketotic hypoglycaemia, manifesting as hyperventilation, apneic spells, seizures, and/or coma. Both SNVs and CNVs have been reported.; to: Well-established gene-disease association. Fructose-1,6-bisphosphatase (FBP1) deficiency is a metabolic disorder characterised by episodic acute crises of lactic acidosis and ketotic hypoglycaemia, manifesting as hyperventilation, apneic spells, seizures, and/or coma. Both SNVs and CNVs have been reported.
Mendeliome v0.13119 GLRA2 Zornitza Stark gene: GLRA2 was added
gene: GLRA2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: GLRA2 was set to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Publications for gene: GLRA2 were set to 26370147; 20479760; 35294868
Phenotypes for gene: GLRA2 were set to Intellectual developmental disorder, X-linked, syndromic, Pilorge type, MIM# 301076
Review for gene: GLRA2 was set to GREEN
Added comment: More than 10 unrelated families reported. Both males and females affected, though some mothers are asymptomatic or mild. Zebrafish model.
Sources: Expert list
Mendeliome v0.13064 PPOX Zornitza Stark Phenotypes for gene: PPOX were changed from to Porphyria variegata , MIM#176200
Mendeliome v0.13061 PPOX Zornitza Stark reviewed gene: PPOX: Rating: GREEN; Mode of pathogenicity: None; Publications: 12357337, 32247286, 23324528, 27982422; Phenotypes: Porphyria variegata , MIM#176200; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.13017 PREPL Zornitza Stark Phenotypes for gene: PREPL were changed from to Myasthenic syndrome, congenital, 22 MIM#616224; hypotonia-cystinuria syndrome; Disorders of amino acid transport
Mendeliome v0.12922 PTRH2 Zornitza Stark commented on gene: PTRH2: Infantile-onset multisystem neurologic, endocrine, and pancreatic disease-1 (IMNEPD1) is an autosomal recessive multisystemic disorder with variable expressivity. The core features usually include global developmental delay with impaired intellectual development and speech delay, ataxia, sensorineural hearing loss, and pancreatic insufficiency. Additional features may include peripheral neuropathy, postnatal microcephaly, dysmorphic facial features, and cerebellar atrophy.

More than 5 unrelated families reported. The Q85P missense variant is reported in several families, likely founder effect.
Mendeliome v0.12907 SGCD Zornitza Stark changed review comment from: Association with LGMD is DEFINITIVE by ClinGen.; to: Association with LGMD is DEFINITIVE by ClinGen. More than 10 unrelated families reported.
Mendeliome v0.12855 PDCD1 Krithika Murali changed review comment from: No OMIM gene disease association.

1 individual from a consanguineous family reported with PDCD1 deficiency.

PMID: 34183838 (Nat Medicine 2021) - proband is the son of consanguineous Turkish parents. He was diagnosed with type 1 diabetes (T1D), hypothyroidism, and juvenile idiopathic arthritis (JIA) at the age of three years. He developed abdominal TB age 10 and died from pulmonary alveolar haemorrhage age 11. WES identified homozygous intragenic PDCD1 gene duplication (c.105dupC p.T36Hfs*70). Absent from population databases and unaffected parents confirmed to be heterozygous. Supportive in vitro studies showing absent expression or function of PD-1 protein. Proband's older brother died at the age of 3 from unexplained pneumonitis and had a history of T1DM and juvenile idiopathic arthritis.; to: No OMIM gene disease association.

1 individual from a consanguineous family reported with PDCD1 deficiency.

PMID: 34183838 (Nat Medicine 2021) - proband is the son of consanguineous Turkish parents. He was diagnosed with type 1 diabetes (T1D), hypothyroidism, and juvenile idiopathic arthritis (JIA) at the age of three years. He developed abdominal TB age 10 and died from pulmonary alveolar haemorrhage age 11. WES identified homozygous intragenic PDCD1 gene duplication (c.105dupC p.T36Hfs*70). Absent from population databases and unaffected parents confirmed to be heterozygous. Supportive in vitro studies showing absent expression or function of PD-1 protein. Proband's older brother died at the age of 3 from unexplained pneumonitis and had a history of T1DM and juvenile idiopathic arthritis.
Mendeliome v0.12784 PDHA2 Zornitza Stark gene: PDHA2 was added
gene: PDHA2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PDHA2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PDHA2 were set to 29581481; 35172124
Phenotypes for gene: PDHA2 were set to Spermatogenic failure-70, MIM#619828
Review for gene: PDHA2 was set to RED
Added comment: Three individuals reported from different families with same homozygous missense variant. Same ethnic background, likely founder effect.
Sources: Literature
Mendeliome v0.12771 TRIM32 Zornitza Stark changed review comment from: Single family reported in 2006.; to: BBS: Single family reported in 2006. LIMITED.
Mendeliome v0.12771 TRIM32 Zornitza Stark edited their review of gene: TRIM32: Added comment: >3 unrelated cases with myopathy, adult onset reported; Changed rating: GREEN; Changed publications: 16606853, 31309175, 11822024; Changed phenotypes: Bardet-Biedl syndrome 11, MIM# 615988, Muscular dystrophy, limb-girdle, autosomal recessive 8 MIM#254110
Mendeliome v0.12759 TTC19 Zornitza Stark edited their review of gene: TTC19: Added comment: Mitochondrial complex III deficiency nuclear type 2 is an autosomal recessive severe neurodegenerative disorder that usually presents in childhood, but may show later onset, even in adulthood. Affected individuals have motor disability, with ataxia, apraxia, dystonia, and dysarthria, associated with necrotic lesions throughout the brain. Most patients also have cognitive impairment and axonal neuropathy and become severely disabled later in life. The disorder may present clinically as spinocerebellar ataxia or Leigh syndrome, or with psychiatric disturbances.

At least 4 unrelated families reported.; Changed publications: 21278747, 23532514, 24368687, 24397319
Mendeliome v0.12756 TSFM Zornitza Stark changed review comment from: Ataxia is a reported feature of this mitochondrial disorder.; to: At least 5 families reported, however 3 had the same homozygous variant, ?founder.
Mendeliome v0.12738 PIGA Zornitza Stark changed review comment from: PIGA 34875027: variants in PIGA causing a neurodevelopment disorder and a juvenile form of hereditary hemochromatosis reported in > three unrelated patients. All patients had increased serum iron, ferritin and transferrin saturation levels, high ALP and low hepcidin. All patients had generalised seizures and intellectual disability. A subpopulation of patient blood cells showed a slight reduction of GPI-anchored proteins, suggesting that the mutations were hypomorphic and retained some residual activity. CRISPR/Cas12a-mediated knockdown of PIGA in Hep3B liver cells eliminated the cell surface expression of GPI-anchored proteins CD59 and hemojuvelin (HJV; 608374), as well as caused decreased expression of hepcidin (606464) compared to controls. These hypomorphic alleles could explain the milder neurologic phenotype, which allowed for sufficiently long survival for the iron overload phenotype to manifest.; to: PMID 34875027: variants in PIGA causing a neurodevelopment disorder and a juvenile form of hereditary hemochromatosis reported in > three unrelated patients. All patients had increased serum iron, ferritin and transferrin saturation levels, high ALP and low hepcidin. All patients had generalised seizures and intellectual disability. A subpopulation of patient blood cells showed a slight reduction of GPI-anchored proteins, suggesting that the mutations were hypomorphic and retained some residual activity. CRISPR/Cas12a-mediated knockdown of PIGA in Hep3B liver cells eliminated the cell surface expression of GPI-anchored proteins CD59 and hemojuvelin (HJV; 608374), as well as caused decreased expression of hepcidin (606464) compared to controls. These hypomorphic alleles could explain the milder neurologic phenotype, which allowed for sufficiently long survival for the iron overload phenotype to manifest.
Mendeliome v0.12737 PIGA Zornitza Stark edited their review of gene: PIGA: Added comment: PIGA 34875027: variants in PIGA causing a neurodevelopment disorder and a juvenile form of hereditary hemochromatosis reported in > three unrelated patients. All patients had increased serum iron, ferritin and transferrin saturation levels, high ALP and low hepcidin. All patients had generalised seizures and intellectual disability. A subpopulation of patient blood cells showed a slight reduction of GPI-anchored proteins, suggesting that the mutations were hypomorphic and retained some residual activity. CRISPR/Cas12a-mediated knockdown of PIGA in Hep3B liver cells eliminated the cell surface expression of GPI-anchored proteins CD59 and hemojuvelin (HJV; 608374), as well as caused decreased expression of hepcidin (606464) compared to controls. These hypomorphic alleles could explain the milder neurologic phenotype, which allowed for sufficiently long survival for the iron overload phenotype to manifest.; Changed publications: 22305531, 24357517, 24706016, 26545172, 33333793, 32694024, 34875027; Changed phenotypes: Multiple congenital anomalies-hypotonia-seizures syndrome 2, MIM# 300868, MONDO:0010466, Neurodevelopmental disorder with epilepsy and haemochromatosis, MIM# 301072
Mendeliome v0.12728 TRAPPC10 Naomi Baker gene: TRAPPC10 was added
gene: TRAPPC10 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TRAPPC10 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TRAPPC10 were set to PMID: 35298461; 30167849
Phenotypes for gene: TRAPPC10 were set to neurodevelopmental disorder (MONDO:0700092), TRAPPC10-related
Review for gene: TRAPPC10 was set to GREEN
Added comment: PMID: 35298461 – two Pakistani families reported with homozygous variants. Family 1 has frameshift variant in 8 affected individual and family 2 has missense variant in 2 affected individuals. Patients present with microcephaly, short stature, hypotonia, severe ID and behavioural abnormalities. Seizures also reported in 4/10 individuals. Paper also reported brain abnormalities in null mouse model and other functional in transfected cell lines.

PMID: 30167849 – initial report of family 2 above.
Sources: Literature
Mendeliome v0.12720 FUZ Anna Ritchie changed review comment from: Novel missense p.(Arg284Pro) mutation in FUZ identified in twins presenting with craniosynostosis. Loss of Fuz resulted in increased mineralisation in both in vitro embryonic primary osteoblast cultures and in fibroblasts undergoing an osteogenic challenge. No previous reports have implicated changes in human FUZ in craniosynostosis. However, variations in FUZ have been found in patients with neural tube defects.; to: Novel missense p.(Arg284Pro) mutation in FUZ identified in twins presenting with craniosynostosis. Loss of Fuz resulted in increased mineralisation in both in vitro embryonic primary osteoblast cultures and in fibroblasts undergoing an osteogenic challenge. No previous reports have implicated changes in human FUZ in craniosynostosis. However, variations in FUZ have been found in patients with neural tube defects.
Mendeliome v0.12714 TNNI1 Krithika Murali gene: TNNI1 was added
gene: TNNI1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TNNI1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: TNNI1 were set to 34934811
Phenotypes for gene: TNNI1 were set to arthrogryposis; joint contractures
Review for gene: TNNI1 was set to AMBER
Added comment: No OMIM gene disease association reported

PMID 34934811 Nishimori et al report 2 individuals from a Japanese family with joint contractures, elevated CK and a novel heterozygous TNNI1 variant.

The proband was born with clasped thumbs (gestational age not stated) requiring surgical correction at 5 months of age. At age 14 was diagnosed with contractures of the neck, trunk, hip and knee with elevated serum CK (1689 IU/L). No muscle weakness noted. Muscle biopsy showed moth-eaten appearance of type I fibres and electron microscopy showed type 1 fibre Z disk streaming.

Trio exome sequencing identified a paternally heterozygous nonsense TNNI1 variant (c.523A>T p.K175*). The proband's father and paternal grandfather (not genotyped) also have a history of joint contractures with elevated CK.

The affected amino acid residue is in the tropomyosin binding site near the C-terminus and is highly conserved. The variant is absent from gnomAD. rt-PCR products of mRNA from the patient's muscle biopsy showed presence of both mutated and normal transcripts.
Sources: Literature
Mendeliome v0.12711 ATP2B1 Daniel Flanagan gene: ATP2B1 was added
gene: ATP2B1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: ATP2B1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ATP2B1 were set to PMID: 35358416
Phenotypes for gene: ATP2B1 were set to Neurodevelopmental delay; autism; seizures; distal limb abnormalities
Review for gene: ATP2B1 was set to GREEN
Added comment: 12 unrelated individuals with variants in ATP2B1 and an overlapping phenotype of mild to moderate global development delay. Additional common symptoms include autism (5), dissimilar forms of seizures (6), and distal limb abnormalities (4). 9 variants proven to be de novo, other 3 variants had unknown inheritance. 9 missense and 3 nonsense reported. Supporting functional analysis for missense.
Sources: Expert list
Mendeliome v0.12691 TMEM106B Zornitza Stark changed review comment from: Cerebellar signs including ataxia prominent.; to: Hypomyelinating leukodystrophy-16 is an autosomal dominant neurologic disorder characterized by onset of hypotonia, nystagmus, and mildly delayed motor development in infancy. Affected individuals have motor disabilities, including ataxic or broad-based gait, hyperreflexia, intention tremor, dysmetria, and a mild pyramidal syndrome. Some patients have cognitive impairment, whereas others may have normal cognition or mild intellectual disability with speech difficulties. Brain imaging typically shows hypomyelination, leukodystrophy, and thin corpus callosum.

At least 5 unrelated individuals reported.
Mendeliome v0.12683 GGN Zornitza Stark gene: GGN was added
gene: GGN was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GGN was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GGN were set to 31985809; 33108537
Phenotypes for gene: GGN were set to Spermatogenic failure 69, MIM# 619826
Review for gene: GGN was set to AMBER
Added comment: Three individuals from two unrelated families reported.
Sources: Literature
Mendeliome v0.12667 SLC2A2 Zornitza Stark changed review comment from: Fanconi-Bickel syndrome is a rare but well-defined clinical entity, inherited in an autosomal recessive mode and characterized by hepatorenal glycogen accumulation, proximal renal tubular dysfunction, and impaired utilization of glucose and galactose.

> 5 patients previously reported with the associated condition, which is a glycogen storage disease. SLC2A2 encodes for the glucose transporter, GLUT2.; to: Fanconi-Bickel syndrome is characterized by hepatorenal glycogen accumulation, proximal renal tubular dysfunction, and impaired utilization of glucose and galactose.

> 5 patients previously reported with the associated condition, which is a glycogen storage disease. SLC2A2 encodes for the glucose transporter, GLUT2.
Mendeliome v0.12631 SPECC1L Zornitza Stark edited their review of gene: SPECC1L: Added comment: Well established gene-disease associations with Teebi and Opitz GBBB.

Single individual reported with oblique facial cleft, some supportive functional data.; Changed publications: 25412741, 26111080, 21703590; Changed phenotypes: Hypertelorism, Teebi type, MIM# 145420, Opitz GBBB syndrome, type II, MIM#145410
Mendeliome v0.12610 SPG7 Zornitza Stark changed review comment from: SPG7 mutations most often lead to spastic paraparesis (HSP) and/or hereditary cerebellar ataxia (HCA), frequently with mixed phenotypes.

Well established for bi-allelic variants.

Enrichment of mono-allelic variants reported in a couple of cohorts, although a recent one suggests digenic inheritance.; to: SPG7 mutations most often lead to spastic paraparesis (HSP) and/or hereditary cerebellar ataxia (HCA), frequently with mixed phenotypes.

Well established for bi-allelic variants.

Enrichment of mono-allelic variants reported in a couple of cohorts, although a recent one suggests digenic inheritance.

Association with OA: 7 families reported for AD OA, including 5 missense and 2 frameshift variants, PMID 32548275
Mendeliome v0.12519 TSPAN7 Zornitza Stark changed review comment from: The P172H missense, which is reported in two families, is present at a high frequency in gnomad, including 66 hemizygotes.; to: The P172H missense, which is reported in two families, is present at a high frequency in gnomad, including 66 hemizygotes.

Most variants in ClinVar are either VOUS or LB.
Mendeliome v0.12454 RIPOR2 Zornitza Stark Phenotypes for gene: RIPOR2 were changed from Deafness, autosomal recessive 104, MIM# 616515; Deafness, autosomal dominant to Deafness, autosomal recessive 104, MIM# 616515; Deafness, autosomal dominant 21, MIM# 607017
Mendeliome v0.12453 RIPOR2 Zornitza Stark edited their review of gene: RIPOR2: Changed phenotypes: Deafness, autosomal recessive 104, MIM# 616515, Deafness, autosomal dominant 21, MIM# 607017
Mendeliome v0.12453 EPOR Bryony Thompson Phenotypes for gene: EPOR were changed from to primary familial polycythemia due to EPO receptor mutation MONDO:0007572
Mendeliome v0.12452 EPOR Bryony Thompson Publications for gene: EPOR were set to
Mendeliome v0.12451 EPOR Bryony Thompson Mode of pathogenicity for gene: EPOR was changed from to Other
Mendeliome v0.12450 EPOR Bryony Thompson Mode of inheritance for gene: EPOR was changed from Unknown to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.12449 EPOR Bryony Thompson reviewed gene: EPOR: Rating: GREEN; Mode of pathogenicity: Other; Publications: 8506290, 11559951, 17488692, 18492694, 30507031; Phenotypes: primary familial polycythemia due to EPO receptor mutation MONDO:0007572; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.12445 SLC34A1 Zornitza Stark changed review comment from: Infantile hypercalcaemia and bi-allelic variants: More than 5 unrelated families reported.

Nephrolithiasis and mono-allelic variants: multiple families reported.; to: Infantile hypercalcaemia and bi-allelic variants: More than 5 unrelated families reported.

Nephrolithiasis and mono-allelic variants: multiple families reported.

Single family reported with renal Fanconi and homozygous variant.
Mendeliome v0.12445 SLC34A1 Zornitza Stark Phenotypes for gene: SLC34A1 were changed from to Hypercalcaemia, infantile, 2 MIM#616963; Nephrolithiasis/osteoporosis, hypophosphatemic, 1 612286
Mendeliome v0.12442 SLC34A1 Zornitza Stark reviewed gene: SLC34A1: Rating: GREEN; Mode of pathogenicity: None; Publications: 26047794, 33516786, 33099630, 32866123, 31188746, 30943683, 12324554, 32216560, 30778725; Phenotypes: Hypercalcaemia, infantile, 2 MIM#616963, Nephrolithiasis/osteoporosis, hypophosphatemic, 1 612286; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.12430 EPO Bryony Thompson changed review comment from: PMID: 27651169, 29514032, 25985138 - At least 4 families reported with heterozygous variants segregating with erythrocytosis. Mechanism of disease is gain-of-function. Frameshift variants identified (c.32delG, c.19delC) use of an alternative promoter (P2) in intron 1 causing the production of functional transcripts and increased amounts of biologically active EPO compared to controls, and 5’UTR conserved variant (c.‐136G>A) and expected to have a similar mechanism.

PMID: 28283061 - single proband from a consanguineous family with severe anaemia (Diamond-Blackfan anaemia phenotype) reported with a homozygous missense (R150Q) showing a mild reduction in its affinity for the EPO receptor; to: PMID: 27651169, 29514032, 25985138 - At least 4 families reported with heterozygous variants segregating with erythrocytosis. Mechanism of disease is gain-of-function. Frameshift variants identified (c.32delG, c.19delC) use of an alternative promoter (P2) in intron 1 causing the production of functional transcripts and increased amounts of biologically active EPO compared to controls, and 5’UTR conserved variant (c.‐136G>A) expected to have a similar mechanism.

PMID: 28283061 - single proband from a consanguineous family with severe anaemia (Diamond-Blackfan anaemia phenotype) reported with a homozygous missense (R150Q) showing a mild reduction in its affinity for the EPO receptor
Mendeliome v0.12304 CA12 Ain Roesley changed review comment from: Glu143Lys found in 4 Israeli Bedouin families

2 other unrelated families reported with 1 missense (LoF demosntrated), 1 splice (aberrant splicing proven) and 1 fs (protein truncating, not NMD); to: Glu143Lys found in 4 Israeli Bedouin families

2 other unrelated families reported with 1 missense (LoF demonstrated), 1 splice (aberrant splicing proven) and 1 fs (protein truncating, not NMD)
Mendeliome v0.12295 TIA1 Zornitza Stark reviewed gene: TIA1: Rating: AMBER; Mode of pathogenicity: None; Publications: 29235362, 29886022, 29773329, 29699721, 29216908, 24659297, 29457785, 28817800, 23401021, 23401021; Phenotypes: Amyotrophic lateral sclerosis 26 with or without frontotemporal dementia, MIM# 619133, Welander distal myopathy (MIM#604454); Mode of inheritance: BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
Mendeliome v0.12287 RBMX Zornitza Stark gene: RBMX was added
gene: RBMX was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: RBMX was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: RBMX were set to 25256757; 34260915
Phenotypes for gene: RBMX were set to Intellectual developmental disorder, syndromic 11, Shashi type, MIM#300238
Review for gene: RBMX was set to AMBER
Added comment: Hemizygous truncating variant reported segregating in multiple affected individuals in a single family. Some supportive functional data.
Sources: Expert Review
Mendeliome v0.12224 OR2J3 Krithika Murali changed review comment from: No mendelian gene disease association; to: No mendelian gene disease association reported
Mendeliome v0.12224 SERPINA1 Samantha Ayres changed review comment from: Well established gene-disease relationship

Rated as C by babyseq due to low penetrance in childhood. Can cause hepatic dysfunction in infancy. Identification would prevent further investigation and potentially lead to optimising respiratory health due to adult onset respiratory involvement.; to: Well established gene-disease relationship

Rated as C by babyseq due to low penetrance in childhood. Can cause hepatic dysfunction in infancy. Identification would prevent further investigation and potentially lead to optimising respiratory health due to adult onset respiratory involvement.

MUTATIONAL & CLINICAL SPECTRUM
ZZ genotype: 2% have severe, neonatal/early-onset liver disease (potentially fatal/requiring liver transplantation), up to 6% have childhood onset liver disease. Also associated with adult-onset lung disease particularly emphysema (50%+ penetrance) - smoking is an important risk factor (close to 100% penetrance).

TREATMENT
There is no specific treatment for liver disease beyond transplant. There is treatment (AAT augmentation therapy) available to delay progression of lung disease phenotype.
Mendeliome v0.12152 CASP8 Ain Roesley changed review comment from: Boderline red/amber

1 family (the 2nd family reported in PMID:25814141 was found to be distantly related to the one in PMID:12353035)

Mice with targeted T cell and B cell caspase-8 deficiency present normal thymocyte development but a marked decrease in peripheral blood T-cells. Besides, when challenged with the lymphocytic choriomeningitis virus (LCMV), these animals showed a significantly impaired immune response to the infection that included impaired CD8 cell expansion and an abrogated ability to generate virus-specific CD8+ cytotoxic T-cells.; to: Borderline red/amber

1 family (the 2nd family reported in PMID:25814141 was found to be distantly related to the one in PMID:12353035)

Mice with targeted T cell and B cell caspase-8 deficiency present normal thymocyte development but a marked decrease in peripheral blood T-cells. Besides, when challenged with the lymphocytic choriomeningitis virus (LCMV), these animals showed a significantly impaired immune response to the infection that included impaired CD8 cell expansion and an abrogated ability to generate virus-specific CD8+ cytotoxic T-cells.
Mendeliome v0.12062 SCP2 Samantha Ayres changed review comment from: Just one case reported in the literature in 2006; to: Just one case reported in the literature in 2006
Mendeliome v0.12062 LGI1 Alison Yeung Phenotypes for gene: LGI1 were changed from to Epilepsy, familial temporal lobe, 1, MIM# 6000512
Mendeliome v0.12059 LGI1 Alison Yeung reviewed gene: LGI1: Rating: GREEN; Mode of pathogenicity: None; Publications: 18711109, 12205652, 15079010, 22496201; Phenotypes: Epilepsy, familial temporal lobe, 1, MIM# 6000512; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.11990 TFAP2B Zornitza Stark changed review comment from: Well established association with syndromic and non-syndromic PDA.; to: Well established association with syndromic and non-syndromic PDA.

Four individuals reported in PMID: 31292255 (Correction in PMID: 31405973) as part of a craniosynostosis cohort: 2 de novo and 2 inherited. There is evidence for reduced penetrance as in one case the variant was inherited from an unaffected parent (affected parent for the other inherited variant).
Mendeliome v0.11975 TEAD1 Zornitza Stark changed review comment from: Sveinsson chorioretinal atrophy (SCRA) is characterized by bilateral, well-defined, tongue-shaped strips of atrophic retina and choroid that extend from the optic nerve into the peripheral ocular fundus. The lesions may be evident at birth and usually progress at a variable rate, sometimes leading to central visual loss. Separate small distinct circular atrophic lesions are observed in the peripheral ocular fundus in some patients. Congenital anterior polar cataracts are found in approximately 25% of affected individuals.

The vast majority of reported cases were of Icelandic origin but the characteristic clinical picture of SCRA is also described in patients of non-Icelandic descent. The variant reported in the Icelanding population is (c.1261T>C, p.Tyr421His), another variant at same position c.1261T>A, p.Tyr421Asn also reported in non-Icelandic family.

Functional data supports gene-disease association.; to: Sveinsson chorioretinal atrophy (SCRA) is characterized by bilateral, well-defined, tongue-shaped strips of atrophic retina and choroid that extend from the optic nerve into the peripheral ocular fundus. The lesions may be evident at birth and usually progress at a variable rate, sometimes leading to central visual loss. Separate small distinct circular atrophic lesions are observed in the peripheral ocular fundus in some patients. Congenital anterior polar cataracts are found in approximately 25% of affected individuals.

The vast majority of reported cases were of Icelandic origin but the characteristic clinical picture of SCRA is also described in patients of non-Icelandic descent. The variant reported in the Icelanding population is (c.1261T>C, p.Tyr421His), another variant at same position c.1261T>A, p.Tyr421Asn also reported in non-Icelandic family.

A de novo nonsense variant has also been reported in a case with Aicardi syndrome with infantile spasms, agenesis of the corpus callosum, and chorioretinal lacunae.
Mendeliome v0.11865 LAS1L Alison Yeung changed review comment from: 3 unrelated individuals reported; to: 3 unrelated individuals reported
Mendeliome v0.11865 LAS1L Alison Yeung changed review comment from: 3 unrelated individuals reported; to: 3 unrelated individuals reported
Mendeliome v0.11864 LAMB2 Alison Yeung changed review comment from: Pierson syndrome (PIERS) is an autosomal recessive disorder comprising congenital nephrotic syndrome with diffuse mesangial sclerosis and distinct ocular abnormalities, including microcoria and hypoplasia of the ciliary and pupillary muscles, as well as other anomalies. Many patients die early, and those who survive tend to show neurodevelopmental delay and visual loss.

Nephrotic syndrome type 5 is an autosomal recessive disorder characterized by very early onset of progressive renal failure manifest as proteinuria with consecutive edema starting in utero or within the first 3 months of life. A subset of patients may develop mild ocular anomalies, such as myopia, nystagmus, and strabismus.

The two disorders are likely part of a spectrum. More than 5 unrelated families reported. ; to: Pierson syndrome (PIERS) is an autosomal recessive disorder comprising congenital nephrotic syndrome with diffuse mesangial sclerosis and distinct ocular abnormalities, including microcoria and hypoplasia of the ciliary and pupillary muscles, as well as other anomalies. Many patients die early, and those who survive tend to show neurodevelopmental delay and visual loss.

Nephrotic syndrome type 5 is an autosomal recessive disorder characterized by very early onset of progressive renal failure manifest as proteinuria with consecutive edema starting in utero or within the first 3 months of life. A subset of patients may develop mild ocular anomalies, such as myopia, nystagmus, and strabismus.

More than 5 unrelated families reported.
Mendeliome v0.11864 LAMB2 Alison Yeung changed review comment from: Pierson syndrome (PIERS) is an autosomal recessive disorder comprising congenital nephrotic syndrome with diffuse mesangial sclerosis and distinct ocular abnormalities, including microcoria and hypoplasia of the ciliary and pupillary muscles, as well as other anomalies. Many patients die early, and those who survive tend to show neurodevelopmental delay and visual loss.

Nephrotic syndrome type 5 is an autosomal recessive disorder characterized by very early onset of progressive renal failure manifest as proteinuria with consecutive edema starting in utero or within the first 3 months of life. A subset of patients may develop mild ocular anomalies, such as myopia, nystagmus, and strabismus.; to: Pierson syndrome (PIERS) is an autosomal recessive disorder comprising congenital nephrotic syndrome with diffuse mesangial sclerosis and distinct ocular abnormalities, including microcoria and hypoplasia of the ciliary and pupillary muscles, as well as other anomalies. Many patients die early, and those who survive tend to show neurodevelopmental delay and visual loss.

Nephrotic syndrome type 5 is an autosomal recessive disorder characterized by very early onset of progressive renal failure manifest as proteinuria with consecutive edema starting in utero or within the first 3 months of life. A subset of patients may develop mild ocular anomalies, such as myopia, nystagmus, and strabismus.

The two disorders are likely part of a spectrum. More than 5 unrelated families reported.
Mendeliome v0.11843 STUB1 Zornitza Stark changed review comment from: Onset is typically in adolescence but onset in childhood also reported.
Sources: Expert list; to: Multiple families reported with mono-allelic and bi-allelic disease, variable age of onset.
Sources: Expert list
Mendeliome v0.11792 SUZ12 Zornitza Stark changed review comment from: More than 10 unrelated individuals reported.; to: More than 10 unrelated individuals reported, ID and overgrowth.
Mendeliome v0.11769 CCDC62 Zornitza Stark gene: CCDC62 was added
gene: CCDC62 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: CCDC62 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CCDC62 were set to 31985809; 28339613
Phenotypes for gene: CCDC62 were set to Spermatogenic failure 67, MIM# 619803
Review for gene: CCDC62 was set to RED
Added comment: Single individual reported, supportive mouse model.
Sources: Expert list
Mendeliome v0.11764 TXNRD2 Zornitza Stark changed review comment from: Further cases reported in this large cohort of paediatric primary adrenal insufficiency.; to: Further cases reported in this large cohort of paediatric primary adrenal insufficiency.

Evidence for association with DCM is limited, considering pop frequency of variants reported.
Mendeliome v0.11754 ADAMTS10 Zornitza Stark changed review comment from: Weill-Marchesani syndrome is a rare connective tissue disorder characterized by short stature, brachydactyly, joint stiffness, eye anomalies, including microspherophakia, ectopia of the lenses, severe myopia, and glaucoma, and, occasionally, heart defects
Sources: Expert list; to: Weill-Marchesani syndrome is a rare connective tissue disorder characterized by short stature, brachydactyly, joint stiffness, eye anomalies, including microspherophakia, ectopia of the lenses, severe myopia, and glaucoma, and, occasionally, heart defects.

Multiple families reported.

Sources: Expert list
Mendeliome v0.11736 UROS Zornitza Stark Phenotypes for gene: UROS were changed from to Porphyria, congenital erythropoietic (MIM#263700)
Mendeliome v0.11691 UNC119 Zornitza Stark changed review comment from: Immunodeficiency 13: Single case reported with the missense Gly22Val. The allele frequency of this variant is >2% in the African/African American subpopulation in gnomAD v2.1, including 6 homozygotes. RED for this association.

Amber for association with cone-rod dystrophy.; to: Immunodeficiency 13: Single case reported with the missense Gly22Val. The allele frequency of this variant is >2% in the African/African American subpopulation in gnomAD v2.1, including 6 homozygotes. RED for this association.

Borderline Green for association with cone-rod dystrophy.
Mendeliome v0.11680 USH2A Belinda Chong edited their review of gene: USH2A: Added comment: Well established gene-disease association - Usher syndrome, DEFINITIVE by ClinGen.

PMID 20507924: Screened the long isoform of USH2A in 80 patients with nonsyndromic autosomal recessive RP and identified at least 1 deleterious mutation in 19% of cases. The authors stated that their findings supported USH2A as the most common known cause of RP in the United States.

https://www.ncbi.nlm.nih.gov/books/NBK1341/, PMID 17296898, ClinVar
Reports of cosegregation of Usher Syndrome and Retinitis Pigmentosa; Changed rating: GREEN; Changed mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.11669 UROS Belinda Chong reviewed gene: UROS: Rating: GREEN; Mode of pathogenicity: None; Publications: 28334762, 27512208, 34187847, 34828434, 15065102; Phenotypes: Porphyria, congenital erythropoietic (MIM#263700); Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.11665 UROD Belinda Chong reviewed gene: UROD: Rating: GREEN; Mode of pathogenicity: None; Publications: 23545314, 30514647, 9792863; Phenotypes: Porphyria cutanea tarda, Porphyria, hepatoerythropoietic (MIM#176100); Mode of inheritance: BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal; Current diagnostic: yes
Mendeliome v0.11659 C8A Ain Roesley changed review comment from: 6 unrelated (2 japanese and 4 africans) with 3 different variants between them (2 splice - 1 with aberrant splicing proven on cDNA and 1 nonsense)

PMID: 8098723; 3 families hom for a nonsense and 2 families 3rd het for the same nonsense and unknown 2nd allele

Amber because no other reports apart from these papers and comprehensive sequencing was not done even in the 2020 paper.; to: 6 unrelated (2 japanese and 4 africans) with 3 different variants between them (2 splice - 1 with aberrant splicing proven on cDNA and 1 nonsense)


Amber because no other reports apart from these papers and comprehensive sequencing was not done even in the 2020 paper.
Mendeliome v0.11540 NDUFAF4 Krithika Murali edited their review of gene: NDUFAF4: Added comment: 3 unrelated families reported with patient-specific functional evidence provided for each.

PMID: 32949790 - report two siblings with facial dysmorphism and lactic acidosis diagnosed neonatally with subsequent fatal early encephalopathy with apneic episodes, irritability, central hypoventilation, liver involvement and hyperammonemia. Cerebral white matter anomalies reported in one patient and cardiomyopathy in the other. WES identified homozygous nonsense NDUFAF4 variants with absent NDUFAF4 expression in patient fibroblasts. OXPHOS assembly studies demonstrated almost undetectable levels of fully assembled complex I and complex I–containing supercomplexes and an abnormal accumulation of SCIII2IV1 supercomplexes. Morphologically, fibroblasts showed rounder mitochondria and a diminished degree of branching of the mitochondrial network.

PMID: 28853723 - report one patient born at 38 weeks after IOL for IUGR. Presented age 7 months with developmental regression, growth failure and central hypotonia. Brain MRI revealed diffuse bilateral signal alterations in the basal ganglia and thalami and an EEG showed generalized slowing with multifocal spikes consistent with an epileptogenic focus. Homozygous missense NDUFAF4 variants identified. Lentiviral complementation of patient fibroblasts with wild-type NDUFAF4 rescued complex I deficiency and assembly defect

PMID 18179882 - report multiple affected individuals from one family. Most presented soon after birth with severe metabolic acidosis and high plasma lactate levels. Patients who survived longer were repeatedly admitted because of exacerbation of the acidosis during intercurrent infections. One long-term survivor had profound ID.; Changed publications: 32949790, 28853723, 18179882
Mendeliome v0.11537 UBA5 Zornitza Stark changed review comment from: Bi-allelic variants in UBA5 cause a range of neurological phenotypes. Ataxia has been specifically described only in one sibling pair. Multiple individuals reported with a more severe EE/ID phenotype, and non-specific movement disorders.; to: Bi-allelic variants in UBA5 cause a range of neurological phenotypes. Ataxia has been specifically described only in one sibling pair. Multiple individuals reported with a more severe EE/ID phenotype, and non-specific movement disorders.

Also note these two reports of demyelinating peripheral neuropathy: 26872069 pair of sibs with mild ataxia, one with neuropathy; 32179706 five individuals from a consanguineous family presenting in infancy with severe fatal neuropathy. Some functional data. Due to early mortality, uncertain at present whether additional features would have developed.
Mendeliome v0.11513 CCDC134 Zornitza Stark gene: CCDC134 was added
gene: CCDC134 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: CCDC134 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CCDC134 were set to 32181939; 34204301; 35019224
Phenotypes for gene: CCDC134 were set to Osteogenesis imperfecta, type XXII, MIM#619795
Review for gene: CCDC134 was set to GREEN
Added comment: Three unrelated families reported.
Sources: Expert list
Mendeliome v0.11512 RACGAP1 Zornitza Stark gene: RACGAP1 was added
gene: RACGAP1 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: RACGAP1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RACGAP1 were set to 34818416
Phenotypes for gene: RACGAP1 were set to Anaemia, congenital dyserythropoietic, type IIIb, autosomal recessive 619789
Review for gene: RACGAP1 was set to RED
Added comment: Single affected individual reported.
Sources: Expert Review
Mendeliome v0.11508 KIF23 Zornitza Stark edited their review of gene: KIF23: Added comment: Second individual reported, elongation variant.; Changed rating: AMBER; Changed publications: 23570799, 33159567; Changed phenotypes: Anaemia, congenital dyserythropoietic, type IIIA 105600
Mendeliome v0.11423 ILF2 Zornitza Stark changed review comment from: Cannot find evidence for association with Mendelian disease.; to: Limited data to support association with autism: two variants in a large ASD cohort and other supportive evidence. Assessed as 'strong candidate' by SFARI.
Mendeliome v0.11362 IYD Zornitza Stark changed review comment from: Four unrelated families reported.; to: Four unrelated families reported in 2008, limited reports since.
Mendeliome v0.11331 KCNE5 Zornitza Stark changed review comment from: Associated with Brugada is DISPUTED.

Rare variants in KCNE5 reported in AF cohorts with some supportive functional data.; to: Association with Brugada is DISPUTED.

Rare variants in KCNE5 reported in AF cohorts with some supportive functional data.
Mendeliome v0.11320 KCNMA1 Zornitza Stark changed review comment from: Multiple individuals with KCNMA1-related channelopathy described, both mono allelic and bi-allelic disease reported; a variety of neurologic symptoms, including ID; some variants are LoF and some are gain of function, some correlation between mechanism of pathogenicity and phenotype.; to: Multiple individuals with KCNMA1-related channelopathy described, both mono allelic and bi-allelic disease reported; a variety of neurologic symptoms, including ID; some variants are LoF and some are gain of function, some correlation between mechanism of pathogenicity and phenotype.

Liang-Wang syndrome is a polymalformation syndrome with neurological involvement.
Mendeliome v0.11295 KIAA1109 Zornitza Stark changed review comment from: ALKKUCS is an autosomal recessive severe neurodevelopmental disorder characterized by arthrogryposis, brain abnormalities associated with cerebral parenchymal underdevelopment, and global developmental delay. Most affected individuals die in utero or soon after birth. Additional abnormalities may include hypotonia, dysmorphic facial features, and involvement of other organ systems, such as cardiac or renal. The few patients who survive have variable intellectual disability and may have seizures.; to: ALKKUCS is an autosomal recessive severe neurodevelopmental disorder characterized by arthrogryposis, brain abnormalities associated with cerebral parenchymal underdevelopment, and global developmental delay. Most affected individuals die in utero or soon after birth. Additional abnormalities may include hypotonia, dysmorphic facial features, and involvement of other organ systems, such as cardiac or renal. The few patients who survive have variable intellectual disability and may have seizures.

More than 10 families reported.
Mendeliome v0.11268 TLN1 Bryony Thompson gene: TLN1 was added
gene: TLN1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TLN1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: TLN1 were set to 30888838
Phenotypes for gene: TLN1 were set to idiopathic spontaneous coronary artery dissection MONDO:0007385
Review for gene: TLN1 was set to AMBER
Added comment: 10 unique rare heterozygous missense variants in 11 individuals were identified in a 2 generation SCAD family and 56 unrelated individuals with sporadic SCAD. All variants had a MAF of less than 0.06% and occurred within highly conserved β-integrin, F-actin, or vinculin binding domains. Incomplete penetrance was evident in the familial case and five individuals with sporadic SCAD from whom parental DNA was available. No functional assays were conducted.
Sources: Literature
Mendeliome v0.11253 TMEM151A Bryony Thompson gene: TMEM151A was added
gene: TMEM151A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TMEM151A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: TMEM151A were set to 34820915; 34518509
Phenotypes for gene: TMEM151A were set to episodic kinesigenic dyskinesia MONDO:0044202
Review for gene: TMEM151A was set to GREEN
Added comment: PMID: 34820915 - 24 heterozygous TMEM151A variants detected in 29 PRRT2-negative patients from 25 families
PMID: 34518509 - TMEM151A variants identified in 3 AD families and 8 isolated PKD patients with incomplete penetrance identified in 3 of the isolated cases. Also, supporting mouse model and in vitro functional assays suggesting loss of function as the mechanism of disease.
Sources: Literature
Mendeliome v0.11189 IRX5 Zornitza Stark edited their review of gene: IRX5: Added comment: Third family with Hamamy syndrome and homozygous missense variant reported, p.Arg168His. Two cousins, >4 meioses, good segregation data.

4th family as part of large heterogenous cohort of consanguineous families also reported with homozygous frameshift (last exon), but limited phenotypic data.; Changed rating: GREEN; Changed publications: 22581230, 27453922, 34899143
Mendeliome v0.11163 JAG1 Zornitza Stark changed review comment from: Two unrelated families reported with CMT type 2. Affected individuals in both families exhibited severe vocal fold paresis, a rare feature of peripheral nerve disease that can be life-threatening. Studies of mutant protein posttranslational modification and localization indicated that the mutations (p.Ser577Arg, p.Ser650Pro) impair protein glycosylation and reduce JAG1 cell surface expression. Mice harboring heterozygous CMT2-associated mutations exhibited mild peripheral neuropathy, and homozygous expression resulted in embryonic lethality by midgestation. Pre-existing rat model.
Sources: Literature; to: Association with Alagille is very well established.

Two unrelated families reported with CMT type 2. Affected individuals in both families exhibited severe vocal fold paresis, a rare feature of peripheral nerve disease that can be life-threatening. Studies of mutant protein posttranslational modification and localization indicated that the mutations (p.Ser577Arg, p.Ser650Pro) impair protein glycosylation and reduce JAG1 cell surface expression. Mice harboring heterozygous CMT2-associated mutations exhibited mild peripheral neuropathy, and homozygous expression resulted in embryonic lethality by midgestation. Pre-existing rat model.
Sources: Literature
Mendeliome v0.11097 NAV2 Alison Yeung Added comment: Comment when marking as ready: Single reported individual. Functional studies and mouse model supportive evidence.
Mendeliome v0.11091 TIAM1 Alison Yeung gene: TIAM1 was added
gene: TIAM1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TIAM1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TIAM1 were set to https://doi.org/10.1016/j.ajhg.2022.01.020
Phenotypes for gene: TIAM1 were set to Neurodevelopmental disorder, TIAM1-related, MONDO:0700092
Review for gene: TIAM1 was set to GREEN
Added comment: Reported in 4 unrelated individuals. Phenotype of developmental delay/intellectual disability and seizures. Loss of ortholog in Drosophila reduces the survival rate, and the surviving adults exhibit climbing defects, are prone to severe seizures, and have a short lifespan. Functional studies in 3 variants from two probands showed loss of function.
Sources: Literature
Mendeliome v0.11089 EHD1 Zornitza Stark gene: EHD1 was added
gene: EHD1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: EHD1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: EHD1 were set to 35149593
Phenotypes for gene: EHD1 were set to Inherited renal tubular disease, MONDO:0015962, EHD1-related
Review for gene: EHD1 was set to AMBER
Added comment: Six individuals (5-33 years) with proteinuria and a high-frequency hearing deficit reported with the homozygous missense variant c.1192C>T (p.R398W) in EHD1. Proteinuria (0.7-2.1 g/d) consisted predominantly of low molecular weight proteins, reflecting impaired renal proximal tubular endocytosis of filtered proteins. Ehd1 knockout and Ehd1R398W/R398W knockin mice also showed a high-frequency hearing deficit and impaired receptor-mediated endocytosis in proximal tubules, and a zebrafish model showed impaired ability to reabsorb low molecular weight dextran. Single founder variant but two animal models, hence Amber
Sources: Literature
Mendeliome v0.11058 HSF2BP Zornitza Stark edited their review of gene: HSF2BP: Added comment: An additional two patients are described with homozygous missense variants, with supportive in vitro functional assay. PMID: 35174157 Now there are 5 affected patients from three independent families and three different biallelic missense variants associated with the condition.; Changed rating: GREEN; Changed publications: 32845237, 35174157
Mendeliome v0.11005 NHLH2 Zornitza Stark gene: NHLH2 was added
gene: NHLH2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NHLH2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NHLH2 were set to 35066646
Phenotypes for gene: NHLH2 were set to Hypogonadotropic hypogonadism 27 without anosmia , MIM# 619755
Review for gene: NHLH2 was set to RED
Added comment: Single individual reported homozygous for a missense variant in this gene. Two other individuals heterozygous for missense variants identified as part of this cohort; however, had alternative diagnoses.
Sources: Literature
Mendeliome v0.10999 TBK1 Chern Lim reviewed gene: TBK1: Rating: RED; Mode of pathogenicity: None; Publications: 25803835, 26581300; Phenotypes: Frontotemporal dementia and/or amyotrophic lateral sclerosis 4 (MIM#616439), AD; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted; Current diagnostic: yes
Mendeliome v0.10975 DRC1 Zornitza Stark edited their review of gene: DRC1: Added comment: PMID 34169321: two individuals reported with homozygous variants and morphological abnormalities of sperm/male infertility.; Changed publications: 31960620, 34169321; Changed phenotypes: Ciliary dyskinesia, primary, 21, MIM# 615294, Male infertility
Mendeliome v0.10953 ZFYVE26 Ain Roesley changed review comment from: Genereviews:
>70 individuals reported; to: Genereviews:
>70 individuals reported.

While onset of spasticity is typically in mid- to late childhood or adolescence (i.e., between ages 5 and 18 years), other manifestations, such as developmental delay or learning disability, may be present earlier, often preceding motor involvement. Individuals with adult onset have also been reported.
Mendeliome v0.10953 ZDHHC9 Ain Roesley changed review comment from: >10 families reported; to: >10 families reported.

Intra-genic CNV in 2 families
Mendeliome v0.10950 BAG5 Zornitza Stark gene: BAG5 was added
gene: BAG5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: BAG5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: BAG5 were set to 35044787
Phenotypes for gene: BAG5 were set to Cardiomyopathy, dilated, 2F, MIM# 619747
Review for gene: BAG5 was set to GREEN
Added comment: 5 individuals from four unrelated families reported. All had early-onset disease, with the diagnosis being made in the second decade of life in 4 patients (families 1, 3, and 4) and at age 34 in 1 (family 2). Refractory ventricular arrhythmias (tachycardia or fibrillation), severely reduced left ventricular ejection fractions, elevated left ventricular diastolic dimensions, and elevated brain natriuretic peptide (BNP) levels reported. All developed severe heart failure requiring placement of a left ventricular assist device for circulatory support, and at least 1 underwent cardiac transplantation.
Sources: Literature
Mendeliome v0.10923 PPP3CA Chern Lim changed review comment from: PMID: 29432562:
- Overexpression studies using yeast showed missense variants in the autoinhibitory domain resulted in gain of function, missense variants in the catalytic domain resulted in loss of function (however dom-neg has not been ruled out).
- Loss-of-function and gain-of-function mutations of PPP3CA lead to early onset epileptic encephalopathy and multiple congenital abnormalities, respectively.

PMID: 32593294:
- Reported a patient with PTV in the C-term predicted to escape NMD, clinical features consistent with MIM#617711.
- Summarised that missense variants in catalytic domain and those upstream of autoinhibitory domain, PTVs in C-term predicted to escape NMD: LoF, MIM#617711. Missense in autoinhibitory domain: GoF, MIM#618265.; to: PMID: 29432562:
- Overexpression studies using yeast showed missense variants in the autoinhibitory domain resulted in gain of function, missense variants in the catalytic domain resulted in loss of function (however dom-neg has not been ruled out).
- Loss-of-function and gain-of-function mutations of PPP3CA lead to early onset epileptic encephalopathy and multiple congenital abnormalities, respectively.

PMID: 32593294:
- Reported a patient with PTV in the C-term predicted to escape NMD, clinical features consistent with MIM#617711.
- 15 variants have been reported. Summarised that missense variants in catalytic domain and those upstream of autoinhibitory domain, PTVs in C-term predicted to escape NMD: LoF, MIM#617711; missense in autoinhibitory domain: GoF, MIM#618265.
Mendeliome v0.10902 PYROXD2 Zornitza Stark gene: PYROXD2 was added
gene: PYROXD2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PYROXD2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PYROXD2 were set to 35055180
Phenotypes for gene: PYROXD2 were set to Mitochondrial disease, MONDO:0044970
Review for gene: PYROXD2 was set to AMBER
Added comment: Single individual reported, functional data.
Sources: Literature
Mendeliome v0.10888 CENPJ Zornitza Stark edited their review of gene: CENPJ: Added comment: PMID 34068194: two further families reported with Seckel syndrome, same homozygous missense, founder?; Changed publications: 20522431, 23166506, 15793586, 20978018, 22775483, 32677750, 32549991, 34068194
Mendeliome v0.10888 MVD Zornitza Stark Phenotypes for gene: MVD were changed from Porokeratosis 7, multiple types, MIM# 614714 to Porokeratosis 7, multiple types, MIM# 614714; Nonsyndromic genetic hearing loss MONDO:0019497, MVD-related, AR
Mendeliome v0.10836 TMEM53 Lucy Spencer gene: TMEM53 was added
gene: TMEM53 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TMEM53 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TMEM53 were set to PMID: 33824347
Phenotypes for gene: TMEM53 were set to Sclerosing bone disorder, macrocephaly, impaired vision, short stature
Review for gene: TMEM53 was set to GREEN
Added comment: PMID: 33824347- Previously unknown type of sclerosing bone disorder in 4 independent families, bi-allelic LOF variants in TMEM53. 5 individuals from 4 families, all have proportional or short limbed stature, not identifiable at birth. Head deformities (macrocephaly, dolichocephaly, prominent forehead), epicanthic folds, thick vermilion of upper and lower lips. Vision diminished after early childhood due to optic nerve compression.

3 of 4 families confirmed consanguineous, and all affected members from all 4 families have homozygous variants inherited from heterozygous parents. 3 families have the same splicing variant proven to cause exon 2 skipping and an NMD frameshift by RT-PCR. The other family has a an NMD frameshift variant. So 4 families but only 2 variants.
Sources: Literature
Mendeliome v0.10836 FZR1 Alison Yeung gene: FZR1 was added
gene: FZR1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FZR1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: FZR1 were set to 34788397
Phenotypes for gene: FZR1 were set to Developmental and epileptic encephalopathy, FZR1-related, MONDO:0100062
Review for gene: FZR1 was set to GREEN
Added comment: >3 unrelated individuals reported with de novo missense variants. Functional studies in Drosophila demonstrate missense variants cause LOF.
Sources: Literature
Mendeliome v0.10835 ARSK Paul De Fazio gene: ARSK was added
gene: ARSK was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ARSK was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ARSK were set to 34916232; 32856704
Phenotypes for gene: ARSK were set to Mucopolysaccharidosis
Review for gene: ARSK was set to GREEN
gene: ARSK was marked as current diagnostic
Added comment: 4 individuals from 2 unrelated consanguineous families (Turkish and Indian) reported with a homozygous missense and an NMD-predicted nonsense variant. Affected individuals had features of mucopolysaccharidosis such as short stature, coarse facial features and dysostosis multiplex. Urinary GAG excretion was normal by conventional methods, but LC-MS/MS in 2 individuals revealed an increase in specific dermatan sulfate-derived disaccharides. Functional studies showed reduced protein levels and reduced enzyme activity for the nonsense and missense variant respectively.

A mouse model also shows a mucopolysaccharidosis phenotype, albeit milder.

Rated green (2 families, functional evidence, mouse model).
Sources: Literature
Mendeliome v0.10835 FRA10AC1 Zornitza Stark edited their review of gene: FRA10AC1: Added comment: PMID 34694367: 5 individuals from 3 unrelated families reported.

Variable ID, possibly related to variant type with LoF variants associated with more severe ID. All individuals had microcephaly, hypoplasia or agenesis of the corpus callosum, growth retardation, and craniofacial dysmorphism.; Changed rating: GREEN; Changed publications: 15203205, 34694367; Changed phenotypes: Neurodevelopmental disorder, MONDO:0700092, FRA10AC1-related; Changed mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.10812 PDHX Ain Roesley changed review comment from: >10 unrelated probands reported

PDHX c.1336C>T (p.Arg446Ter) is a Roma founder variant; c.1182+2T>C (p.Ile386SerfsTer13) is a Moroccan founder variant.; to: established gene-disease association

PDHX c.1336C>T (p.Arg446Ter) is a Roma founder variant; c.1182+2T>C (p.Ile386SerfsTer13) is a Moroccan founder variant.
Mendeliome v0.10796 KIF26B Zornitza Stark gene: KIF26B was added
gene: KIF26B was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: KIF26B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: KIF26B were set to 30151950
Phenotypes for gene: KIF26B were set to Progressive microcephaly, pontocerebellar hypoplasia, and arthrogryposis
Review for gene: KIF26B was set to RED
Added comment: 1 report only of infant with progressive microcephaly, pontocerebellar hypoplasia, and arthrogryposis secondary to the involvement of anterior horn cells and ventral (motor) nerves. Whole exome sequencing on the trio identified a de novo KIF26B missense variant (p.Gly546Ser). Functional analysis of the variant protein in cultured cells revealed a reduction in the KIF26B protein's ability to promote cell adhesion, a defect that potentially contributes to its pathogenicity.
Sources: Expert Review
Mendeliome v0.10793 CHP1 Zornitza Stark gene: CHP1 was added
gene: CHP1 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: CHP1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CHP1 were set to 29379881; 32787936
Phenotypes for gene: CHP1 were set to Spastic ataxia 9, autosomal recessive, MIM #618438
Review for gene: CHP1 was set to GREEN
Added comment: 2 different consanguineous families with 2 affected siblings with ataxia (1 paediatric onset, 1 adult onset). 3 of the patients had cerebellar atrophy. WES identified homozygous variants in CHP1 gene in both families (K19del and Arg91Cys), which segregated with the disorder in the family.

Decreased CHP1 protein on IHC of cerebellar tissue in family with Arg91Cys variant. In vitro functional expression studies in HEK293 cells showed that the K19del mutation resulted in decreased protein expression, with normal levels of transcript, suggesting defects in protein stability. The mutant protein formed massive protein aggregates in transfected neuronal cell bodies and neurite-like projections, whereas the wildtype protein showed a more uniform distribution. The mutant protein altered CHP1 association into functional complexes and impaired membrane localization of the Na+/H+ transporter NHE1. The findings indicated that the CHP1 mutation likely causes ataxia in an NHE1-dependent manner, resembling the mechanism observed in the Chp1 vacillator mutant mouse.
Sources: Expert Review
Mendeliome v0.10787 CYS1 Zornitza Stark gene: CYS1 was added
gene: CYS1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CYS1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CYS1 were set to 34521872
Phenotypes for gene: CYS1 were set to Polycystic kidney disease, MONDO:0020642
Review for gene: CYS1 was set to AMBER
Added comment: Single family reported. However, extensive experimental data, including mouse model.
Sources: Literature
Mendeliome v0.10784 CAMK2G Zornitza Stark gene: CAMK2G was added
gene: CAMK2G was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: CAMK2G was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CAMK2G were set to 30184290; 23033978
Phenotypes for gene: CAMK2G were set to Mental retardation, autosomal dominant 59, MIM# 618522
Review for gene: CAMK2G was set to AMBER
Added comment: Two unrelated individuals reported with de novo (p.Arg292Pro) variant. Functional data suggests GoF.
Sources: Expert Review
Mendeliome v0.10758 IKZF2 Zornitza Stark gene: IKZF2 was added
gene: IKZF2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: IKZF2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: IKZF2 were set to 34920454
Phenotypes for gene: IKZF2 were set to Immune dysregulation
Review for gene: IKZF2 was set to GREEN
Added comment: Six individuals with systemic lupus erythematosus, immune thrombocytopenia or EBV-associated haemophagocytic lymphohistiocytosis reported with variants in this gene. Patients exhibited hypogammaglobulinaemia, decreased number of T-follicular helper and NK-cells.
Sources: Literature
Mendeliome v0.10751 ANGPT2 Zornitza Stark edited their review of gene: ANGPT2: Added comment: Bi-allelic disease PMID 34876502: single family reported with four fetuses with hydrops fetalis homozygous for ANGPT2 NM_001147.2:c.557A>G. The consanguineous parents and surviving sibblings (a girl and a boy), were heterozygous for this variant. This variant is predicted to create a cryptic exonic splice site, resulting in a r.557_566del and nonsense-mediated mRNA decay. This prediction was supported by the lack of a transcript from this allele in the parents.; Changed publications: 32908006, 34876502; Changed phenotypes: Lymphatic malformation-10, MIM#619369, Primary lymphoedema, Hydrops; Changed mode of inheritance: BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
Mendeliome v0.10750 BET1 Zornitza Stark gene: BET1 was added
gene: BET1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: BET1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: BET1 were set to 34779586
Phenotypes for gene: BET1 were set to Muscular dystrophy; Epilepsy
Review for gene: BET1 was set to AMBER
Added comment: Three individuals from 2 unrelated families reported.
Sources: Literature
Mendeliome v0.10741 UQCRC2 Zornitza Stark edited their review of gene: UQCRC2: Added comment: Third family with different variant reported, together with functional data.; Changed rating: GREEN; Changed publications: 28275242, 23281071, 33865955
Mendeliome v0.10728 ZIC4 Zornitza Stark Added comment: Comment when marking as ready: Two individuals reported with a deletion of ZIC1 and ZIC4 and Dandy-Walker malformation.
Mendeliome v0.10680 OTUD6B Zornitza Stark changed review comment from: IDDFSDA is a severe multisystem disorder characterized by global developmental delay, microcephaly, absent speech, hypotonia, growth retardation with prenatal onset, feeding difficulties, structural brain abnormalities, congenital malformations including congenital heart disease, and musculoskeletal features. In 2017, 12 patients from 6 unrelated families with IDDFSDA identified with 4 homozygous mutations in the OTUD6B gene (WES and Sanger, and segregated with the disorder in the families). Other cases reported since. Suitable for fetal anomalies panel.; to: IDDFSDA is a severe multisystem disorder characterized by global developmental delay, microcephaly, absent speech, hypotonia, growth retardation with prenatal onset, feeding difficulties, structural brain abnormalities, congenital malformations including congenital heart disease, and musculoskeletal features. In 2017, 12 patients from 6 unrelated families with IDDFSDA identified with 4 homozygous mutations in the OTUD6B gene (WES and Sanger, and segregated with the disorder in the families). Other cases reported since.
Mendeliome v0.10643 DYNC1I1 Krithika Murali gene: DYNC1I1 was added
gene: DYNC1I1 was added to Mendeliome. Sources: Expert Review,Literature
Mode of inheritance for gene: DYNC1I1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: DYNC1I1 were set to 22914741; 25231166; 32219838
Phenotypes for gene: DYNC1I1 were set to Split-hand/split-foot malformation (SHFM)
Review for gene: DYNC1I1 was set to GREEN
Added comment: Gene disease association reviewed in Sept 2021 - no new publications.

At least 6 unrelated families with overlapping deletions that included exons 15 and 17 of DYNC1I1. Exons 15 and 17 have previously been shown to act as tissue-specific enhancers of Dlx5/6 in mouse and zebrafish. No SNVs reported in association with disease.
Sources: Expert Review, Literature
Mendeliome v0.10640 MYL9 Ain Roesley edited their review of gene: MYL9: Added comment: PMID:32621347;
3rd family with non-consanguineous parents and 3 TOPs. 2 were genotyped and found to be hom for the same deletion of exon 4 as reported by PMID: 29453416

Possibly 4th proband in PMID: 33264186 but specifics including genotype were lacking and overlapping institute/hospital as PMID: 33031641; Changed publications: 32621347, 33264186
Mendeliome v0.10637 ANAPC7 Zornitza Stark gene: ANAPC7 was added
gene: ANAPC7 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ANAPC7 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ANAPC7 were set to 34942119
Phenotypes for gene: ANAPC7 were set to Ferguson-Bonni neurodevelopmental syndrome, MIM# 619699
Review for gene: ANAPC7 was set to AMBER
Added comment: 11 individuals of Amish heritage reported homozygous for an intragenic deletion. Clinical features included ID, hypotonia, deafness in 5, relatively small head size (but microcephaly only in 1), and occasional congenital anomalies.

Supportive mouse model.

Amber rating in light of this being a founder variant.
Sources: Literature
Mendeliome v0.10582 TOPORS Zornitza Stark Phenotypes for gene: TOPORS were changed from Retinitis pigmentosa 31 (MIM#609923) to Retinitis pigmentosa 31 (MIM#609923); Ciliopathy, MONDO:0005308, TOPORS-associated, AR
Mendeliome v0.10581 TOPORS Zornitza Stark Publications for gene: TOPORS were set to 21159800; 17924349; 28453362; 18509552
Mendeliome v0.10580 TOPORS Zornitza Stark Mode of inheritance for gene: TOPORS was changed from MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.10573 INPP5K Ain Roesley changed review comment from: At least 20 probands reported thus far.
Noted that Val23Met is an Italian founder mutation and Ile50thr is a Paskitani/Bangladeshi founder; to: At least 20 probands reported thus far.
Noted that Val23Met is an Italian founder mutation and Ile50thr is a Pakistani/Bangladeshi founder
Mendeliome v0.10573 INPP5K Ain Roesley changed review comment from: At least 20 probands reported thus far.
Noted that Val23Met is an Italian founder mutation; to: At least 20 probands reported thus far.
Noted that Val23Met is an Italian founder mutation and Ile50thr is a Paskitani/Bangladeshi founder
Mendeliome v0.10564 PRDM13 Zornitza Stark Added comment: Comment when marking as ready: Bi-allelic variants: Recessive disease causing ID and DSD described in three reportedly unrelated families (2 consanguineous), but all are from Malta, and all share the same 13bp deletion spanning an exon-intron boundary. Mouse KO is embryonically lethal, and tissue specific KO failed to replicate many of the patients phenotypes, other than hypoplasia of the cerebellar vermis and hemispheres at P21.
Mendeliome v0.10563 ATP5A1 Naomi Baker edited their review of gene: ATP5A1: Added comment: PMID: 34954817 reports three individuals with de novo monoallelic missense variants. One of these is the recurrent p.(Arg207His) variant while the other two variants are different substitutions. The three patients presented with a variable phenotypes: (1) a 14-year-old girl who presented during the first few months of life with developmental delay, failure-to-thrive, and lactic acidosis. She recovered and had no persistent neurologic phenotype; (2) a 17-year-old boy with psychomotor delay, intellectual disability, ataxia, spastic paraparesis, and dystonia; (3) a 12-year-old girl with psychomotor retardation, spastic tetraparesis, generalized dystonia, absent speech, swallowing problems, and increased blood lactate concentrations. Enzymatic investigations of muscle tissue from patient 1 showed a decrease in ATPase activity.; Changed publications: PMID: 34954817
Mendeliome v0.10561 ATP5G3 Naomi Baker edited their review of gene: ATP5G3: Added comment: Note that HGNC approved gene name is ATP5MC3.

PMID: 34636445 reports a missense variant identified in a large single-family pedigree with dystonia and spastic paraplegia. The variant was identified via exome sequencing of the proband and a distant cousin, focussing on variants within the previously determined linkage region. The identical missense variant was also identified in a patient with childhood onset dystonic syndrome and was shown to be de novo. Functional studies of fibroblast cell lines from affected father (HSP) and proband of large family demonstrated decreased complex V function. A drosophila model containing the missense variant had reduced mobility and reduced complex V activity.

PMID: 34954817 reports de novo monoallelic missense variants in three individuals, however one of these individuals was reported in above paper. The other two patients were: (1) a-15-year-old girl with milestone delay, pyramidal signs, and generalized dystonia with prominent upper-body involvement, and (2) a 6-year-old boy with delayed psychomotor development, lower-extremity spasticity, and elevated blood lactate levels; Changed rating: GREEN; Changed publications: PMID: 34636445, 34954817
Mendeliome v0.10558 ATP5G3 Naomi Baker gene: ATP5G3 was added
gene: ATP5G3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ATP5G3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ATP5G3 were set to PMID: 34636445
Phenotypes for gene: ATP5G3 were set to Dystonia, early-onset, and/or spastic paraplegia, MIM#619681
Review for gene: ATP5G3 was set to AMBER
Added comment: Note that new gene name is ATP5MC3.

Paper reports the same missense variant identified in a large single-family pedigree with dystonia and spastic paraplegia, and also de novo in a patient with childhood onset dystonic syndrome. Drosophila model with missense variant also studied. Functional studies of fibroblast cells lines from affected father and proband demonstrated decreased complex V function.
Sources: Literature
Mendeliome v0.10556 NAA10 Ain Roesley edited their review of gene: NAA10: Added comment: For Ogden association:
lethal X-linked. 9 males from 3 families with recurrent Ser37Pro
All presenting the distinctive and recognizable phenotype, which includes mostly postnatal growth retardation, global severe developmental delay, characteristic craniofacial features, and structural cardiac anomalies and/or arrhythmias

For non-lethal syndromic ID:
reported in 10 males and (mostly de novo) in 37 females
variants causing this are missense located along the protein and 1 truncating

For syndromic microopththamia: variants are in the UTR; Changed mode of inheritance: Other
Mendeliome v0.10554 PPIA Naomi Baker gene: PPIA was added
gene: PPIA was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PPIA was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PPIA were set to PMID: 34972208
Phenotypes for gene: PPIA were set to amyotrophic lateral sclerosis, MONDO:0004976
Review for gene: PPIA was set to RED
Added comment: Paper characterizes a knockout mouse model that recapitulates key features of ALS-FTD. Also identified a heterozygous missense variant in one patient with sporadic amyotrophic lateral sclerosis. Functional studies of the missense variant suggest loss-of-function.
Sources: Literature
Mendeliome v0.10552 TOPORS Dean Phelan reviewed gene: TOPORS: Rating: AMBER; Mode of pathogenicity: None; Publications: PMID:34132027; Phenotypes: Postaxial polydactyly:multiple lingual hamartomas:dysmorphic features; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.10550 PAK2 Arina Puzriakova gene: PAK2 was added
gene: PAK2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PAK2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PAK2 were set to 33693784
Phenotypes for gene: PAK2 were set to Knobloch 2 syndrome
Review for gene: PAK2 was set to RED
Added comment: Antonarakis et al., 2021 (PMID: 33693784) reported two affected siblings from a non-consanguineous New Zealand family. Both had retinal detachment and interstitial parenchymal pulmonary changes on chest X-rays, but only one child had additional significant features such as cataract, posterior encephalocele, severe DD/ID with ASD, and epilepsy. WES revealed a heterozygous PAK2 variant (c.1303 G>A, p.Glu435Lys) in both individuals that apparently occurred de novo indicating parental germ-line mosaicism; however, mosaicism could not be detected by deep sequencing of blood parental DNA. Functional studies showed that the variant, located in the kinase domain, results in a partial loss of the kinase activity.
Sources: Literature
Mendeliome v0.10542 TBX2 Krithika Murali changed review comment from: Liu et al. (2018) reported 4 affected individuals from 2 unrelated families with congenital cardiac defects (ASD, PDA, double outlet right ventricle, pulmonary stenosis), skeletal abnormalities (camptodactyly, congenital fusion thoracic spine, hemivertebrae ).Thymus aplasia/hypoplasia, cleft palate also noted. Other associated features include - facial dysmorphisms, variable developmental delay, and endocrine system disorders (e.g. autoimmune hypothyroidism, hypoparathyroidism).

PMID23727221 and PMID30223900 - TBX2 gene and TBX2 gene promoter sequencing in congenital heart disease cohorts versus controls - not enough supportive evidence for variant pathogenicity, including no segregation data. Variants prevalent in population databases also included as likely pathogenic.

PMID 20635360 - de novo dup 17q23.2 encompassing TBX2 gene in boy with cognitive impairment, multiple congenital defects and prenatal onset growth restriction. Part of BCAS3 gene (associated with autosomal recessive Hengel-Maroofian-Schols syndrome) also included in duplication. No supportive evidence of TBX2 gene function impairment in the patient provided.; to: Liu et al. (2018) reported 4 affected individuals from 2 unrelated families with congenital cardiac defects (ASD, PDA, double outlet right ventricle, pulmonary stenosis), skeletal abnormalities (camptodactyly, congenital fusion thoracic spine, hemivertebrae ).Thymus aplasia/hypoplasia, cleft palate also noted. Other associated features include - facial dysmorphisms, variable developmental delay, and endocrine system disorders (e.g. autoimmune hypothyroidism, hypoparathyroidism).

PMID23727221 and PMID30223900 - TBX2 gene and TBX2 gene promoter sequencing in congenital heart disease cohorts versus controls - not enough supportive evidence for variant pathogenicity, including no segregation data. Variants prevalent in population databases also included as potentially disease causing.

PMID 20635360 - de novo dup 17q23.2 encompassing TBX2 gene in boy with cognitive impairment, multiple congenital defects and prenatal onset growth restriction. Part of BCAS3 gene (associated with autosomal recessive Hengel-Maroofian-Schols syndrome) also included in duplication. No supportive evidence of TBX2 gene function impairment in the patient provided.
Mendeliome v0.10491 KCNC1 Zornitza Stark changed review comment from: Additional individuals reported with different variants, causing a broad range of neurological phenotypes including ID and movement disorders.; to: Additional individuals reported with different variants, causing a broad range of neurological phenotypes including ID and movement disorders.

Likely reflects different mechanisms (LoF vs GoF).
Mendeliome v0.10448 GPKOW Ain Roesley gene: GPKOW was added
gene: GPKOW was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GPKOW was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: GPKOW were set to 28612833
Phenotypes for gene: GPKOW were set to male-lethal microcephaly with intrauterine growth restriction
Penetrance for gene: GPKOW were set to unknown
Review for gene: GPKOW was set to RED
gene: GPKOW was marked as current diagnostic
Added comment: - multi-generational family with 5 deceased males (only 1 genotyped)
- X-exome sequencing identified NM_015698.4:c.331+5G>A, which segregated through the obligate carriers
- RNA from female carriers confirmed splicing defects, which leads to NMD

no additional reports since
Sources: Literature
Mendeliome v0.10440 SIX5 Zornitza Stark changed review comment from: Multiple families reported.; to: Multiple families reported. However, association between SIX5 variants and BOR is DISPUTED by ClinGen: Association has been reported in at least 6 probands in 2 publications (17357085, 24429398), however the reported variants are high in frequency in population databases, have no evidence of pathogenicity, and/or an alternate cause of disease has later been reported (21280147). This gene-disease association is supported by protein interaction and biochemical function studies (14704431, 17357085, 11950062). While EYA1 and SIX1 gene inactivation in mice leads to ear and kidney abnormalities, two independent SIX5 mouse models have cataracts and no ear or kidney abnormalities (10802667, 10802668). In summary, there is convincing evidence disputing the association between SIX5 and autosomal dominant branchio-oto-renal syndrome.
Mendeliome v0.10427 TECRL Zornitza Stark gene: TECRL was added
gene: TECRL was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: TECRL was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TECRL were set to 17666061; 27861123; 30790670; 33367594
Phenotypes for gene: TECRL were set to Ventricular tachycardia, catecholaminergic polymorphic, 3, MIM# 614021
Review for gene: TECRL was set to GREEN
Added comment: DEFINITIVE by ClinGen
Homozygous or cpd heterozygous pathogenic variants in TECRL have been identified in patients with CPVT in at least 3 families in the literature with functional evidence.
- 17666061 one consanguineous family with 4 affected relatives (siblings or 1stcousins)
- 27861123 consanguineous family with 8 affected relatives (siblings or 1stcousins)
- 30790670 reported in a single family with one child with features of CPVT
-A multi-centre review published in 2020 provided an update on these cases and described two additional CPVT cases (homozygous p.Tyr197Ter nonsense variant and homozygous exon 2 deletion) and a family with three children with sudden cardiac death, where one was homozygous for the c.331+1G>A splice donor variant, PMID 33367594
Sources: Expert Review
Mendeliome v0.10404 BRWD3 Zornitza Stark changed review comment from: More than 10 unrelated families reported, overgrowth, and in particular macrocephaly.; to: More than 10 unrelated families reported with ID, overgrowth, and in particular macrocephaly.
Mendeliome v0.10404 BRWD3 Zornitza Stark changed review comment from: More than 10 unrelated families reported, overgrowth, and in particular macrocephaly reported.; to: More than 10 unrelated families reported, overgrowth, and in particular macrocephaly.
Mendeliome v0.10359 CSTF2 Zornitza Stark gene: CSTF2 was added
gene: CSTF2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CSTF2 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: CSTF2 were set to 32816001
Phenotypes for gene: CSTF2 were set to Intellectual disability
Review for gene: CSTF2 was set to AMBER
Added comment: Four individuals from a single family, spanning two generations, segregating a missense variant. Functional data, including a mouse model and a gene reporter assay.
Sources: Literature
Mendeliome v0.10358 ALAD Zornitza Stark Phenotypes for gene: ALAD were changed from to Porphyria, acute hepatic , MIM#612740
Mendeliome v0.10355 ALAD Zornitza Stark reviewed gene: ALAD: Rating: GREEN; Mode of pathogenicity: None; Publications: 16343966, 30724374, 2063868, 1569184, 15303011; Phenotypes: Porphyria, acute hepatic , MIM#612740; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.10338 FBLN5 Zornitza Stark changed review comment from: Cutis laxa: >3 families reported with bi-allelic variants and functional data including mouse model. Single individual reported in 2003 with mono-allelic disease (large intragenic duplication).

Neuropathy +/- macular degeneration:
PMID: 32757322
- 38 individuals from 19 families
- all missense, R373C, D329V and R331H
- some carriers were subjectively healthy although pes cavus, diminished or absent deep tendon reflexesor NCV studies indicate peripheral neuropathy

PMID: 31945625
- 1 family with 2 affecteds, R373C
- 1 obligate carrier presented no symptoms

PMID: 28332470
- 3 affecteds in 1 family with R373C; to: Cutis laxa: >3 families reported with bi-allelic variants and functional data including mouse model. Single individual reported in 2003 with mono-allelic disease (large intragenic duplication).
Mendeliome v0.10312 GLI1 Ain Roesley gene: GLI1 was added
gene: GLI1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GLI1 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: GLI1 were set to 34721536; 31621941; 31549748; 30620395
Phenotypes for gene: GLI1 were set to Polydactyly, postaxial, type A8 MIM#618123; Polydactyly, preaxial I MIM#174400
Penetrance for gene: GLI1 were set to unknown
Review for gene: GLI1 was set to GREEN
gene: GLI1 was marked as current diagnostic
Added comment: >10 unrelated probands reported, both AD and AR reported
Sources: Literature
Mendeliome v0.10291 CRELD1 Zornitza Stark commented on gene: CRELD1: Three families reported with heterozygous missense variants and heterotaxy phenotype. However, supporting evidence of pathogenicity for some of the variants is relatively weak.
Mendeliome v0.10290 HHAT Zornitza Stark edited their review of gene: HHAT: Added comment: Additional family reported.; Changed rating: GREEN; Changed publications: 24784881, 30912300, 33749989
Mendeliome v0.10272 USP53 Zornitza Stark changed review comment from: Another 7 unrelated families with cholestasis reported. Jaundice began at age <7 months. Cholestasis was transient, with documented resolution of hyperbilirubinaemia in all (oldest patient aged 5 years). One individual had deafness.; to: Another 11 unrelated families with cholestasis reported. Jaundice began at age <7 months. Cholestasis was transient, with documented resolution of hyperbilirubinaemia in all (oldest patient aged 15 years). Childhood-onset deafness reported in two families.
Mendeliome v0.10253 REL Zornitza Stark Phenotypes for gene: REL were changed from Combined immunodeficiency; T cells: normal, decreased memory CD4, poor proliferation; B cells: low, mostly naive, few switched memory B cells, impaired proliferation; Recurrent infections with bacteria, mycobacteria, salmonella and opportunistic organisms; Defective innate immunity to Immunodeficiency 92, MIM# 619652; Combined immunodeficiency; T cells: normal, decreased memory CD4, poor proliferation; B cells: low, mostly naive, few switched memory B cells, impaired proliferation; Recurrent infections with bacteria, mycobacteria, salmonella and opportunistic organisms; Defective innate immunity
Mendeliome v0.10250 REL Zornitza Stark changed review comment from: Second unrelated individual reported, homozygous splice site variant.

Immunodeficiency-92 (IMD92) is an autosomal recessive primary immunodeficiency characterized by the onset of recurrent infections in infancy or early childhood. Infectious agents are broad, including bacterial, viral, fungal, and parasitic, including Cryptosporidium and Mycobacteria. Patient lymphocytes show defects in both T- and B-cell proliferation, cytokine secretion, and overall function, and there is also evidence of dysfunction of NK, certain antigen-presenting cells, and myeloid subsets.; to: Second unrelated individual reported, with a different homozygous splice site variant.

Immunodeficiency-92 (IMD92) is an autosomal recessive primary immunodeficiency characterized by the onset of recurrent infections in infancy or early childhood. Infectious agents are broad, including bacterial, viral, fungal, and parasitic, including Cryptosporidium and Mycobacteria. Patient lymphocytes show defects in both T- and B-cell proliferation, cytokine secretion, and overall function, and there is also evidence of dysfunction of NK, certain antigen-presenting cells, and myeloid subsets.
Mendeliome v0.10250 REL Zornitza Stark edited their review of gene: REL: Added comment: Second unrelated individual reported, homozygous splice site variant.

Immunodeficiency-92 (IMD92) is an autosomal recessive primary immunodeficiency characterized by the onset of recurrent infections in infancy or early childhood. Infectious agents are broad, including bacterial, viral, fungal, and parasitic, including Cryptosporidium and Mycobacteria. Patient lymphocytes show defects in both T- and B-cell proliferation, cytokine secretion, and overall function, and there is also evidence of dysfunction of NK, certain antigen-presenting cells, and myeloid subsets.; Changed rating: AMBER; Changed publications: 31103457, 34623332; Changed phenotypes: Immunodeficiency 92, MIM# 619652, Combined immunodeficiency, T cells: normal, decreased memory CD4, poor proliferation, B cells: low, mostly naive, few switched memory B cells, impaired proliferation, Recurrent infections with bacteria, mycobacteria, salmonella and opportunistic organisms, Defective innate immunity
Mendeliome v0.10248 SLC26A5 Zornitza Stark commented on gene: SLC26A5: Another publication identified, plus another individual with bi-allelic variants reported by a diagnostic laboratory. This gene-disease association is supported by mouse models, biochemical function studies and expression studies (12239568, 10821263, 11423665, 12719379, 18466744, 27091614, 17998209). Classified as LIMITED by ClinGen in 2017.
Mendeliome v0.10204 KCND2 Eleanor Williams gene: KCND2 was added
gene: KCND2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KCND2 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: KCND2 were set to 24501278; 16934482; 29581270; 34245260
Phenotypes for gene: KCND2 were set to global developmental delay, HP:0001263; seizure, HP:0001250
Mode of pathogenicity for gene: KCND2 was set to Other
Review for gene: KCND2 was set to GREEN
Added comment: 6 new unrelated cases with developmental delay reported in PMID: 34245260 (Zhang et al 2021), 3 of whom had seizures. All had heterozygous missense variants of KCND2 in sites known to be critical for channel gating (E323K, P403A, two individuals, V404L, two individuals and V404M). Functional studies suggest that these missense changes cause both a partial loss-of-function (LOF) and gain-of-function (GOF). The V404 change appears to increase epileptic seizure susceptibility with the 3 patients with a V404 change showing this phenotype.

PMID:24501278 - Lee et al, 2014 - reports pair of monozygotic twin boys with infantile onset severe refractory epilepsy and autism. A de novo heterozygous missense variant was identified by WES - V404M.

PMID: 29581270 - Lin et al, 2018 - performed functional work that shows V404M enhances inactivation of channels that have not yet opened and dramatically impairs the inactivation of channels that have opened.

PMID:16934482 - Singh et al, 2006 - reports a patient with cognative impairment who also went on to have seizures starting from age 13 with a 5 bp deletion in KCND2 leading to premature stop codon. The proband's asymptomatic father also shared this variant.
Sources: Literature
Mendeliome v0.10201 EIF2B2 Zornitza Stark changed review comment from: Multiple families reported, marked phenotypic variability.; to: Multiple families reported, marked phenotypic variability, age of onset from infancy to adulthood.
Mendeliome v0.10181 ADCY5 Zornitza Stark edited their review of gene: ADCY5: Added comment: Neurodevelopmental disorder with hyperkinetic movements and dyskinesia (NEDHYD) is an autosomal recessive complex neurologic disorder characterized by severe global developmental delay with axial hypotonia, impaired intellectual development, poor overall growth, and abnormal involuntary hyperkinetic movements, including dystonia, myoclonus, spasticity, and orofacial dyskinesia. It is the most severe manifestation of ADCY5-related dyskinetic disorders. Five individuals from 2 families reported.

Autosomal recessive hyperkinetic movement disorder with dyskinesia, myoclonus, chorea, and dystonia-2 (HYDMCD2) is characterized by the onset of abnormal involuntary movements, mainly affecting the limbs and causing walking difficulties, in the first decade. The severity is variable; some patients have orofacial dyskinesia, resulting in speech difficulties, or develop neuropsychiatric features, including anxiety and social withdrawal. Cardiomyopathy has rarely been described and may be a manifestation of the disorder. Eight individuals from 2 families reported.; Changed publications: 22782511, 24700542, 33051786, 32647899, 33704598, 34631954, 28971144, 30975617; Changed phenotypes: Dyskinesia, familial, with facial myokymia, MIM# 606703, MONDO:0011707, Hyperkinetic movement disorder with dyskinesia, myoclonus, chorea, and dystonia-2 (HYDMCD2), MIM#619647, Neurodevelopmental disorder with hyperkinetic movements and dyskinesia (NEDHYD), MIM#619651; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.10116 LACC1 Bryony Thompson changed review comment from: At least 43 cases with biallelic variants (7 different variants) from 17 consanguineous families reported.
Sources: Literature; to: At least 43 cases with biallelic variants (7 different variants) from 17 mainly consanguineous families reported.
Sources: Literature
Mendeliome v0.10115 LACC1 Bryony Thompson gene: LACC1 was added
gene: LACC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: LACC1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: LACC1 were set to 25220867; 27881174; 30872671; 33718577
Phenotypes for gene: LACC1 were set to Juvenile arthritis MIM#618795
Review for gene: LACC1 was set to GREEN
Added comment: At least 43 cases with biallelic variants (7 different variants) from 17 consanguineous families reported.
Sources: Literature
Mendeliome v0.10111 ASTL Zornitza Stark gene: ASTL was added
gene: ASTL was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: ASTL was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ASTL were set to 34704130
Phenotypes for gene: ASTL were set to Oocyte maturation defect 11, MIM# 619643
Review for gene: ASTL was set to RED
Added comment: Oocyte maturation defect-11 (OOMD11) is characterized by reduced or absent fertility and poor embryonic outcomes with assisted reproductive technology. Single family with two affected siblings reported.
Sources: Expert list
Mendeliome v0.10073 TBC1D32 Zornitza Stark edited their review of gene: TBC1D32: Added comment: Further report of ciliopathy phenotype in PMID 31130284.; Changed publications: 24285566, 32573025, 32060556, 31130284
Mendeliome v0.10072 BLOC1S1 Zornitza Stark gene: BLOC1S1 was added
gene: BLOC1S1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: BLOC1S1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: BLOC1S1 were set to 33875846
Phenotypes for gene: BLOC1S1 were set to severe intellectual disability; severe global developmental delay; epilepsy
Review for gene: BLOC1S1 was set to GREEN
Added comment: 4 individuals reported.
Sources: Literature
Mendeliome v0.10068 TMEM260 Zornitza Stark changed review comment from: Seven unrelated families reported.; to: Seven unrelated families reported. Clinical features: ventricular septal defects (12/12), mostly secondary to truncus arteriosus (10/12), elevated creatinine levels (6/12), horse-shoe kidneys (1/12) and renal cysts (1/12) in patients.
Mendeliome v0.10067 TMEM260 Zornitza Stark changed review comment from: Two unrelated families reported.; to: Seven unrelated families reported.
Mendeliome v0.10066 SNIP1 Zornitza Stark edited their review of gene: SNIP1: Added comment: A single (founder) variant NM_024700.4:c.1097A>G, p.(Glu366Gly) has been reported in over 30 cases of Psychomotor retardation, epilepsy, and craniofacial dysmorphism OMIM:614501 in the Amish community (PMIDs: 22279524; 34570759). Cases are homozygous for this variant and unaffected members of the families are heterozygous or wt. Overexpression of the equivalent mouse variant in mouse inner medullary collecting duct cells, resulted in a more aggregated appearance in the nucleus compared to wildtype. The variant protein maybe unstable as Western blots showed reduced levels of the variant protein (PMID: 22279524). Whole transcriptomic analysis of patient blood was performed in PMID: 34570759. This revealed 11 upregulated and 32 downregulated genes, of which 24 had previously been associated with neurological disease.; Changed rating: AMBER; Changed publications: 22279524, 34570759
Mendeliome v0.10065 TAF4 Zornitza Stark gene: TAF4 was added
gene: TAF4 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TAF4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: TAF4 were set to 33875846; 28191890
Phenotypes for gene: TAF4 were set to Neurodevelopmental disorder
Review for gene: TAF4 was set to AMBER
Added comment: Three individuals reported with de novo LoF variants as part of large cohorts, limited phenotypic information available.
Sources: Literature
Mendeliome v0.10062 RAB11A Zornitza Stark edited their review of gene: RAB11A: Added comment: Two additional cases reported.; Changed rating: GREEN; Changed publications: 29100083, 33875846
Mendeliome v0.10061 PLK1 Zornitza Stark gene: PLK1 was added
gene: PLK1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PLK1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PLK1 were set to 33875846
Phenotypes for gene: PLK1 were set to Epilepsy; microcephaly; intellectual disability
Review for gene: PLK1 was set to GREEN
Added comment: More than 5 individuals reported.
Sources: Literature
Mendeliome v0.10058 RAP1GDS1 Zornitza Stark edited their review of gene: RAP1GDS1: Added comment: Two additional families reported.; Changed rating: GREEN; Changed publications: 32431071, 33875846
Mendeliome v0.10052 RPA1 Zornitza Stark gene: RPA1 was added
gene: RPA1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RPA1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RPA1 were set to 34767620
Phenotypes for gene: RPA1 were set to Bone marrow failure; T- and B-cell lymphopaenia; pulmonary fibrosis; skin manifestations; short telomeres
Mode of pathogenicity for gene: RPA1 was set to Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments
Review for gene: RPA1 was set to GREEN
Added comment: 4 individuals with gain of function variants with bone marrow failure, myelodysplastic syndrome, T- and B-cell lymphopaenia, pulmonary fibrosis, or skin manifestations reported.
Sources: Literature
Mendeliome v0.10048 ADK Zornitza Stark commented on gene: ADK: Three additional families reported, liver disease prominent.
Mendeliome v0.10044 ECM1 Zornitza Stark changed review comment from: PMID: 11929856 - Hamada et al 2002 - looked at 6 different unrelated consanguineous families (from Saudi Arabia, Kuwait, Pakistan, The Netherlands, UK, and a group of South African families with a probable common ancestor) with a clinical diagnosis of Lipoid proteinosis (LP)/Urbach–Wiethe disease. They performed a genome-wide linkage analysis and identified a region and then looked at the expression of candidate genes in fibroblasts from patients compared to controls. ECM1 was found to have lower expression levels. 6 homozygous deletion variants were identified in the patients. In one family they established that the parents were heterozygous for the variant.

PMID: 28720532 - Afifi et al 2017 - studied 12 patients from 10 unrelated consanguineous Egyptian families with a clinical diagnosis of lipoid proteinosis. The patients reported progressive hoarseness of voice and easily damaged skin by minor trauma or friction. Homozygous ECM1 variants were detected in affected members in all families: 1 family had a missense variant, 5 families had splice site variants and 4 families had indels predicted to cause frameshifts. Parents were found to be heterozygous for the variants.

PMID: 33159951 - Zhu et al 2021 - a novel homozygous three-nucleotide duplication (c.506_508dupCTG) in ECM in two siblings affected with LP from a consanguineous Chinese family.; to: Lipoid proteinosis of Urbach and Wiethe is a rare autosomal recessive disorder typified by generalized thickening of skin, mucosae, and certain viscera. Classic features include beaded eyelid papules and laryngeal infiltration leading to hoarseness. The disorder is clinically heterogeneous, with affected individuals displaying differing degrees of skin scarring and infiltration, variable signs of hoarseness and respiratory distress, and in some cases neurologic abnormalities such as temporal lobe epilepsy. Histologically, there is widespread deposition of hyaline (glycoprotein) material and disruption/reduplication of basement membrane

PMID: 11929856 - Hamada et al 2002 - looked at 6 different unrelated consanguineous families (from Saudi Arabia, Kuwait, Pakistan, The Netherlands, UK, and a group of South African families with a probable common ancestor) with a clinical diagnosis of Lipoid proteinosis (LP)/Urbach–Wiethe disease. They performed a genome-wide linkage analysis and identified a region and then looked at the expression of candidate genes in fibroblasts from patients compared to controls. ECM1 was found to have lower expression levels. 6 homozygous deletion variants were identified in the patients. In one family they established that the parents were heterozygous for the variant.

PMID: 28720532 - Afifi et al 2017 - studied 12 patients from 10 unrelated consanguineous Egyptian families with a clinical diagnosis of lipoid proteinosis. The patients reported progressive hoarseness of voice and easily damaged skin by minor trauma or friction. Homozygous ECM1 variants were detected in affected members in all families: 1 family had a missense variant, 5 families had splice site variants and 4 families had indels predicted to cause frameshifts. Parents were found to be heterozygous for the variants.

PMID: 33159951 - Zhu et al 2021 - a novel homozygous three-nucleotide duplication (c.506_508dupCTG) in ECM in two siblings affected with LP from a consanguineous Chinese family.
Mendeliome v0.10035 FGF5 Zornitza Stark gene: FGF5 was added
gene: FGF5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FGF5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FGF5 were set to 24989505
Phenotypes for gene: FGF5 were set to Hypertrichosis
Review for gene: FGF5 was set to GREEN
Added comment: Two families reported, aware of additional unpublished case.
Sources: Literature
Mendeliome v0.10031 ANK3 Zornitza Stark edited their review of gene: ANK3: Added comment: PMID 34218362: four unrelated novel, and two previously published patients with heterozygos ANK3 LoF variants are reported/summarized.; Changed rating: GREEN; Changed publications: 23390136, 28687526, 34218362; Changed phenotypes: Mental retardation, autosomal recessive, 37 615493, Intellectual disability, autosomal dominant
Mendeliome v0.10031 HIBADH Zornitza Stark gene: HIBADH was added
gene: HIBADH was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: HIBADH was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: HIBADH were set to 34176136
Phenotypes for gene: HIBADH were set to Organic aciduria
Review for gene: HIBADH was set to RED
Added comment: Single family reported with two siblings presenting with 3-Hydroxyisobutyric aciduria. Male sib with neurodevelopmental symptoms, female sibling asymptomatic. No functional studies
Sources: Literature
Mendeliome v0.10024 OGDHL Melanie Marty gene: OGDHL was added
gene: OGDHL was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: OGDHL was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: OGDHL were set to PMID: 34800363
Phenotypes for gene: OGDHL were set to Neurodevelopmental disorder featuring epilepsy, hearing loss, visual impairment, and ataxia
Review for gene: OGDHL was set to GREEN
Added comment: Nine individuals from eight unrelated families carrying bi-allelic variants in OGDHL with a range of neurological and neurodevelopmental phenotypes including epilepsy, hearing
loss, visual impairment, gait ataxia, microcephaly, and hypoplastic corpus callosum.

Homozygous and compound heterozygous variants reported. Variant types reported include missense, PTCs and a synonymous variant that was shown to affect splicing.

Functional studies with a CRISPR-Cas9-mediated tissue knockout with cDNA rescue system showed that the missense variants result in loss-of-function.
Sources: Literature
Mendeliome v0.10019 FOXR1 Paul De Fazio changed review comment from: 1 patient described with a de novo missense variant. Phenotypes include: postnatal microcephaly, progressive brain atrophy, skeletal abnormalities, brain abnormalities, ophthalmic abnormalities, neuromuscular abnornmalities, and dysmorphic features.

In vitro functional evidence is supportive of pathogenicity (variant causes protein instability and abnormal nuclear aggregation).

A mouse knockout has comparable phenotypes, and a severe survival deficit.

Rated amber (1 patient, functional evidence, mouse model).
Sources: Literature; to: 1 patient described with a de novo missense variant. Phenotypes include: postnatal microcephaly, progressive brain atrophy, skeletal abnormalities, brain abnormalities, ophthalmic abnormalities, neuromuscular abnormalities, and dysmorphic features. A variant in ATP1A3 was considered to have contributed to the final phenotype.

In vitro functional evidence is supportive of pathogenicity (variant causes protein instability and abnormal nuclear aggregation).

A mouse knockout has comparable phenotypes, and a severe survival deficit.

Rated amber (1 patient, functional evidence, mouse model).
Sources: Literature
Mendeliome v0.10019 SLIRP Belinda Chong gene: SLIRP was added
gene: SLIRP was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SLIRP was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLIRP were set to 34426662
Phenotypes for gene: SLIRP were set to Mitochondrial encephalomyopathy with complex I and IV deficiency
Review for gene: SLIRP was set to RED
Added comment: Single Dutch non-consanguineous patient having mitochondrial encephalomyopathy with complex I and complex IV deficiency, whole exome sequencing revealed two compound heterozygous variants (NM_031210.5:c.248_252del; NP_112487.1:p.(Ile83Argfs*10) and NC_000014.8:g.78177003 A > G; NM_031210.5:c.98-178 A > G) in SLIRP. Report SLIRP variants as a novel cause of mitochondrial encephalomyopathy with OXPHOS deficiency
Sources: Literature
Mendeliome v0.10018 OGDH Zornitza Stark gene: OGDH was added
gene: OGDH was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: OGDH was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: OGDH were set to 32383294
Phenotypes for gene: OGDH were set to Developmental delay; ataxia; seizure; raised lactate
Review for gene: OGDH was set to AMBER
Added comment: Two siblings reported with homozygous missense variant in this gene and global developmental delay, elevated lactate, ataxia and seizure. Fibroblast analysis and modeling of the mutation in Drosophila were used to evaluate pathogenicity of the variant. Note previous report of an individual with developmental delay, hypotonia, and movement disorders and metabolic decompensation and biochemical evidence of OGDH deficiency but genetic testing not done.
Sources: Literature
Mendeliome v0.10017 FOXR1 Paul De Fazio gene: FOXR1 was added
gene: FOXR1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FOXR1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: FOXR1 were set to 34723967
Phenotypes for gene: FOXR1 were set to Postnatal microcephaly, progressive brain atrophy and global developmental delay
Review for gene: FOXR1 was set to AMBER
gene: FOXR1 was marked as current diagnostic
Added comment: 1 patient described with a de novo missense variant. Phenotypes include: postnatal microcephaly, progressive brain atrophy, skeletal abnormalities, brain abnormalities, ophthalmic abnormalities, neuromuscular abnornmalities, and dysmorphic features.

In vitro functional evidence is supportive of pathogenicity (variant causes protein instability and abnormal nuclear aggregation).

A mouse knockout has comparable phenotypes, and a severe survival deficit.

Rated amber (1 patient, functional evidence, mouse model).
Sources: Literature
Mendeliome v0.9999 PLS3 Zornitza Stark Phenotypes for gene: PLS3 were changed from to Bone mineral density QTL18, osteoporosis - MIM#300910
Mendeliome v0.9996 PLS3 Zornitza Stark reviewed gene: PLS3: Rating: GREEN; Mode of pathogenicity: None; Publications: 32655496, 25209159, 29736964, 29884797, 28777485, 24088043; Phenotypes: Bone mineral density QTL18, osteoporosis - MIM#300910; Mode of inheritance: X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Mendeliome v0.9984 CARD10 Zornitza Stark gene: CARD10 was added
gene: CARD10 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: CARD10 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CARD10 were set to 32238915
Phenotypes for gene: CARD10 were set to Immunodeficiency 89 and autoimmunity, MIM# 619632
Review for gene: CARD10 was set to RED
Added comment: A pair of siblings reported with adult onset of recurrent infections, allergies, microcytic anaemia, and Crohn disease. Homozygous missense variant.
Sources: Expert list
Mendeliome v0.9979 SMAD2 Melanie Marty commented on gene: SMAD2: PMID: 30157302 - Two distinct phenotypes associated with pathogenic variants in SMAD2: complex congenital heart disease with or without laterality defects and other congenital anomalies, and a late-onset vascular phenotype characterized by arterial aneurysms with connective tissue abnormalities. No genotype/phenotype correlation has been established so far.

PMID: 30157302, PMID: 23665959 - 5 individuals reported with the CHD phenotype
Mendeliome v0.9979 SMAD2 Melanie Marty edited their review of gene: SMAD2: Added comment: PMID: 30157302 - Two distinct phenotypes associated with pathogenic variants in SMAD2: complex congenital heart disease with or without laterality defects and other congenital anomalies, and a late-onset vascular phenotype characterized by arterial aneurysms with connective tissue abnormalities. No genotype/phenotype correlation has been established so far.

PMID: 30157302, PMID: 23665959 - 5 individuals reported with the CHD phenotype; Changed publications: 29967133, 30157302, 23665959; Changed phenotypes: Aortic and arterial aneurysmal disease, connective tissue disease, congenital heart disease
Mendeliome v0.9965 GRIP1 Zornitza Stark changed review comment from: Typical features include cryptophthalmos, syndactyly, and abnormalities of the respiratory and urogenital tract. At least 5 families reported.; to: Typical features include cryptophthalmos, syndactyly, and abnormalities of the respiratory and urogenital tract. At least 5 families reported.

'Mild' bi-allelic variants also postulated to cause isolated CAKUT, PMID 24700879.
Mendeliome v0.9948 CPEB1 Bryony Thompson gene: CPEB1 was added
gene: CPEB1 was added to Mendeliome. Sources: Literature
SV/CNV tags were added to gene: CPEB1.
Mode of inheritance for gene: CPEB1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CPEB1 were set to 34794894; 33095795; 32354341; 30689869; 11702780
Phenotypes for gene: CPEB1 were set to Primary ovarian insufficiency
Review for gene: CPEB1 was set to AMBER
Added comment: Large CNVs including CPEB1 mainly reported, but also include BNC1.
PMID: 33095795 - 1 POI case with missense variant p.R87C, which has 101 hets in gnomAD v2.1 (too common for a Mendelian dominantly inherited disease). Also another POI case with an 83.8Kb deletion including CPEB1.
PMID: 32354341 - 1 primary amenorrhea case heterozygous deletion of exons 8-12 of CPEB1
PMID: 30689869 - 6 POI cases (including previously reported) with a 15q25.2 deletion including CPEB1, but also including POI gene BNC1. Also, a homozygous microdeletion involving CPEB1 intron 1 in one case.
PMID: 11702780 - knockout mouse model had vestigial ovaries devoid of oocytes
Sources: Literature
Mendeliome v0.9932 BNC1 Bryony Thompson gene: BNC1 was added
gene: BNC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: BNC1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: BNC1 were set to 34794894; 30010909; 16624857; 32962729; 32894148; 30689869; 27301361
Phenotypes for gene: BNC1 were set to Premature ovarian failure 16 MIM#618723
Review for gene: BNC1 was set to GREEN
Added comment: PMID: 30010909 - a heterozygous frameshift variant segregates with POF in 6 affected females in a Chinese family. A female mouse model of the human Bnc1 frameshift mutation exhibited infertility.
PMID: 32962729 - 1 POF case with p.Asp575Val (which has 89 hets in gnomAD v2.1) and 1 POF case with biallelic missense variants (p.Asp568Val & p.Leu525Pro).
SCV001364363.1 - 1 POF case submitted by Medical Cytogenetics and Molecular Genetics Laboratory,IRCCS Istituto Auxologico Italiano to ClinVar with NM_001717.4(BNC1):c.2273C>T (p.Thr758Ile)
PMID: 32894148, 30689869, 27301361 - large CNVs involving BNC1 reported in POF cases
PMID: 16624857 - knockdown of the gene in mouse oocytes lead to subfertility
Sources: Literature
Mendeliome v0.9929 ACVR1 Zornitza Stark changed review comment from: Fibrodysplasia ossificans progressiva is a rare autosomal dominant disease with complete penetrance involving progressive ossification of skeletal muscle, fascia, tendons, and ligaments. FOP has a prevalence of approximately 1 in 2 million worldwide, and shows no geographic, ethnic, racial, or gender preference. Individuals with FOP appear normal at birth except for great toe abnormalities: the great toes are short, deviated, and monophalangic. Ossification occurs progressively over the course of a lifetime in an inevitable and unpredictable episodic manner.

Multiple unrelated families reported. The R206H variant is recurrent.; to: Fibrodysplasia ossificans progressiva is a rare autosomal dominant disease with complete penetrance involving progressive ossification of skeletal muscle, fascia, tendons, and ligaments. FOP has a prevalence of approximately 1 in 2 million worldwide, and shows no geographic, ethnic, racial, or gender preference. Individuals with FOP appear normal at birth except for great toe abnormalities: the great toes are short, deviated, and monophalangic. Ossification occurs progressively over the course of a lifetime in an inevitable and unpredictable episodic manner.

Multiple unrelated families reported. The R206H variant is recurrent.

Note variants in this gene are also associated with congenital heart disease, PMID 29089047.
Mendeliome v0.9918 ACO2 Zornitza Stark edited their review of gene: ACO2: Added comment: At least 10 unrelated families reported. I am not convinced this gene causes two separate disorders, more likely a spectrum. OA has been reported as an isolated finding in one family, and a feature of a more complex and severe neurological presentation in the rest.; Changed publications: 22405087, 25351951, 30689204, 32519519, 25351951
Mendeliome v0.9917 DAZL Bryony Thompson gene: DAZL was added
gene: DAZL was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DAZL was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: DAZL were set to 34794894; 33095795; 16884537; 9288969
Phenotypes for gene: DAZL were set to Primary ovarian insufficiency
Review for gene: DAZL was set to AMBER
Added comment: PMID: 33095795 - Single POI case with heterozygous stopgain (c.640C>T:p.Q214*).
PMID: 16884537 - 4 heterozygous unrelated early menopause/POI cases with heterozygous missense (all rare in gnomAD v2.1, except p.Asn10His which has 14 hets)
PMID: 9288969 - supporting knockout mouse model
Sources: Literature
Mendeliome v0.9897 POLR2C Bryony Thompson gene: POLR2C was added
gene: POLR2C was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: POLR2C was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: POLR2C were set to 34794894; 29367954
Phenotypes for gene: POLR2C were set to Primary ovarian insufficiency
Review for gene: POLR2C was set to AMBER
Added comment: One family with POI segregating a nonsense variant (p.Lys152Ter) and a case with sporadic POI with a splice region variant (c.206-3C>T). Knockdown of the gene in an embryonic carcinoma cell line resulted in decreased protein production and impaired cell proliferation.
Two missense in premature ovarian failure cases submitted to ClinVar by Shandong Provincial Hospital Affiliated to Shandong University (SCV001877131.1, SCV001877153.1).
Sources: Literature
Mendeliome v0.9892 KHDRBS1 Bryony Thompson gene: KHDRBS1 was added
gene: KHDRBS1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KHDRBS1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: KHDRBS1 were set to 34794894; 29808484; 28938739; 20881015
Phenotypes for gene: KHDRBS1 were set to Premature ovarian failure
Review for gene: KHDRBS1 was set to GREEN
Added comment: 4 cases in 3 unrelated families and a supporting mouse model
PMID: 28938739 - missense (c.460A > G, p.M154V) identified in a Chinese mother and daughter with POI, and another missense (c.263C > T, p.P88L) identified in an idiopathic POI case.
SCV001364312.1 - case with POI and missense (p.Pro421Leu) submitted by an Italian institute (ClinVar ID: 929733)
PMID: 29808484 - missense (p.Pro296Leu) identified in a POI case, which also has a heterozygous missense in FGFR2. There are 12 hets with Pro296Leu in gnomAD v2.1. This case is not included in the final case count.
PMID: 20881015 - supporting null mouse model. Female mice were subfertile.
Sources: Literature
Mendeliome v0.9776 NEBL Bryony Thompson Added comment: Comment on list classification: Limited gene-disease vailidity, Classification - 09/25/2020 by ClinGen Dilated Cardiomyopathy GCEP. Evidence Summary: NEBL was evaluated for autosomal dominant dilated cardiomyopathy (DCM). Human genetic evidence supporting this gene-disease relationship includes case-level data. Arimura and colleagues (2000, PMID: 11140941) analyzed 83 DCM patients and 311 healthy controls, identifying 4 missense variants of unknown significance (VUSs) in 4 DCM cases. High minor allele frequencies (MAFs) and lack of segregation excluded these variants as evidence. Purevjav and colleagues (2010, PMID: 20951326) investigated a total of 260 DCM patients and 300 unrelated ethnic matched controls by direct DNA sequencing. Authors identified 4 missense VUSs. One of these variants (Q128R) was downgraded in level of evidence due to the lack of segregation. The other 3 variants were not scored because of their MAF. Perrot and colleagues (2016, PMID: 27186169) investigated a total of 389 patients with DCM, HCM, or LVNC, 320 Caucasian sex-matched controls and 192 Caucasian sex-matched blood donors and identified 3 missense VUSs in 4 families. One of these variants was also carried by healthy relatives and therefore was excluded, however this may be explained by reduced penetrance. The 2 other variants lacked segregation as well and therefore were also excluded. In addition, this gene-disease association is supported by animal models. Mastronotaro and colleagues (2015, PMID: 25987543) created a NEBL knockout mice that exhibited normal cardiac function up to 9 months of age but after 2 weeks of transaortic constriction (TAC), these mice showed Z-line widening since the age of 5 months and upregulation of cardiac stress genes (basal and after TAC) However, absence of clinical DCM features in KO-NEBL mice as well as Western Blot analysis which contradicted previous findings by showing a similar protein expression between knockout and wild-type mice, excluding it as evidence. Purevjav and colleagues (2010, PMID: 20951326) generated a transgenic mouse overexpressing WT or mutant NEBL under the control of the α-MyHC promoter (4 variants were tested). Mice overexpressing p.K60N or p.Q128R variants died within 1 year because of severe heart enlargement and heart failure. Mice overexpressing p.G202R or p.A592E were born and developed normally but after 6 months displayed reduced stress tolerance, cardiac enlargement due to left ventricle dilation, myocyte disarray, and interstitial cell infiltration. In summary, there is limited evidence to support this gene-disease relationship. More evidence is needed to support the relationship of NEBL and autosomal dominant DCM. This classification was approved by the ClinGen Dilated Cardiomyopathy Working Group on October 11, 2019 (SOP Version 7). Gene Clinical Validity Standard Operating Procedures (SOP) - SOP7
Mendeliome v0.9762 MED17 Zornitza Stark changed review comment from: 5 individuals from 3 families now reported with intellectual disability and variable other neurological features including ataxia and seizures.; to: Over 10 families now reported with intellectual disability and variable other neurological features including ataxia, microcephaly and seizures.

Note the c.1112T>C (p.L371P) variant is a founder variant in the Caucasus-Jewish families.
Mendeliome v0.9714 HKDC1 Zornitza Stark gene: HKDC1 was added
gene: HKDC1 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: HKDC1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: HKDC1 were set to 30085091
Phenotypes for gene: HKDC1 were set to Retinitis pigmentosa 92, MIM# 619614
Review for gene: HKDC1 was set to RED
Added comment: Two unrelated Chinese men reported with relatively late-onset RP, and same homozygous missense variant.
Sources: Expert Review
Mendeliome v0.9707 CDON Zornitza Stark changed review comment from: >5 unrelated families reported, however note some of the variants are present at a very low frequentcy in gnomad (1-4) and some are inherited. Mouse model.; to: >5 unrelated families reported, however note some of the variants are present at a very low frequentcy in gnomad (1-4) and some are inherited. Mouse model.

Note single report of bi-allelic variants in association with coloboma: PMID 32729136
Mendeliome v0.9704 EFHC1 Bryony Thompson Added comment: Comment on list classification: ClinGen Epilepsy GCEP gene-disease association curation: Disputed - We have disregarded the very limited functional evidence in light of the complete lack of genetic evidence connecting EFHC1 and epilepsy. In summary, there is convincing evidence disputing the association between EFHC1 and epilepsy. All variants in EFHC1 associated with epilepsy have contradictory evidence for disease association (too common in ExAC/gnomAD, with minor allele frequencies (MAF) of 2.857e-5 to 0.05973). More evidence is needed to either support or refute the role EFHC1 plays in this disease. Classification - 07/27/2018, reviewed Sept 2021
Mendeliome v0.9702 MICAL1 Bryony Thompson gene: MICAL1 was added
gene: MICAL1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MICAL1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MICAL1 were set to 29394500; 21638339
Phenotypes for gene: MICAL1 were set to Autosomal dominant epilepsy with auditory features (ADEAF)
Review for gene: MICAL1 was set to AMBER
Added comment: Two families with supporting in vitro functional assays. Assessment of expression pattern of Mical-1 in the temporal neocortex of patients with intractable temporal epilepsy and pilocarpine-induced rat model, suggests Mical-1 may associate with inner pathophysiological modulation in epilepsy.
Sources: Expert list
Mendeliome v0.9701 CPA6 Bryony Thompson Added comment: Comment on list classification: ClinGen Epilepsy GCEP has reviewed both inheritances for gene-disease associations with epilepsy: AR disease is Disputed - There is contradictory case level and experimental data regarding any association between CPA6 and autosomal recessive epilepsy. Classification - 07/29/2021 AD disease is Refuted- There is very limited evidence supporting a gene-disease association. Many of the reported pathogenic variants have been subsequently identified as having a high minor allele frequency in population databases. Classification - 07/29/2021
Mendeliome v0.9691 BRAT1 Zornitza Stark changed review comment from: At least 4 individuals reported from unrelated families and bi-allelic variants in this gene.
Sources: Expert list; to: Biallelic mutations in the BRAT1 gene, encoding BRCA1-associated ATM activator 1, result in variable phenotypes, from rigidity and multifocal seizure syndrome, lethal neonatal (RMFSL) to neurodevelopmental disorder and cerebellar atrophy with or without seizures (NEDCAS), without obvious genotype-phenotype associations.

Multiple families reported with each.
Mendeliome v0.9682 BMPER Zornitza Stark commented on gene: BMPER: Perinatal lethal skeletal dysplasia.

The primary skeletal characteristics include small chest, abnormal vertebral segmentation, and posterior rib gaps containing incompletely differentiated mesenchymal tissue. Consistent craniofacial features include ocular hypertelorism, epicanthal folds, depressed nasal bridge with short nose, and low-set ears. The most commonly described extraskeletal finding is nephroblastomatosis with cystic kidneys, but other visceral findings have been described in some cases.

At least 5 unrelated families reported.
Mendeliome v0.9661 B3GAT3 Zornitza Stark changed review comment from: More than 5 unrelated families reported.; to: 26 patients from 13 families with variable phenotypes resembling Larsen, Antley-Bixler, Shprintzen-Goldberg, and Geroderma osteodysplastica syndromes. Multiple skeletal and cardiac abnormalities reported.
Mendeliome v0.9636 C9orf3 Zornitza Stark gene: C9orf3 was added
gene: C9orf3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: C9orf3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: C9orf3 were set to 34596301
Phenotypes for gene: C9orf3 were set to Dystonia 31, MIM# 619565
Review for gene: C9orf3 was set to GREEN
Added comment: Dystonia-31 (DYT31) is an autosomal recessive progressive neurologic disorder characterized by involuntary muscle twisting movements and postural abnormalities affecting the upper and lower limbs, neck, face, and trunk. Some patients may have orofacial dyskinesia resulting in articulation and swallowing difficulties. The age at onset ranges from childhood to young adulthood. There are usually no additional neurologic symptoms, although late-onset parkinsonism was reported in 1 family.

5 individuals from 4 unrelated families reported.

HGNC approved name is AOPEP.
Sources: Literature
Mendeliome v0.9631 ASXL1 Zornitza Stark changed review comment from: Bohring-Opitz syndrome is a malformation syndrome characterized by severe intrauterine growth retardation, poor feeding, profound ID, trigonocephaly, prominent metopic suture, exophthalmos, nevus flammeus of the face, upslanting palpebral fissures, hirsutism, and flexion of the elbows and wrists with deviation of the wrists and metacarpophalangeal joints -- many of these features would be identifiable antenatally.; to: Bohring-Opitz syndrome is a malformation syndrome characterized by severe intrauterine growth retardation, poor feeding, profound ID, trigonocephaly, prominent metopic suture, exophthalmos, nevus flammeus of the face, upslanting palpebral fissures, hirsutism, and flexion of the elbows and wrists with deviation of the wrists and metacarpophalangeal joints.

Multiple individuals reported.
Mendeliome v0.9628 SIK3 Krithika Murali gene: SIK3 was added
gene: SIK3 was added to Mendeliome. Sources: Expert list,Literature
Mode of inheritance for gene: SIK3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SIK3 were set to 30232230; 22318228
Phenotypes for gene: SIK3 were set to ?Spondyloepimetaphyseal dysplasia, Krakow type - #618162
Review for gene: SIK3 was set to AMBER
Added comment: Biallelic SIK3 variants reported in 2 siblings from a consanguineous family with an uncharacterised skeletal dysplasia. Radiographic features included widened/flared metaphyses with irregular ossifications, motheaten long bones, fragmentation of the proximal metacarpals, rounded vertebral bodies, and a distinctive transverse gap seen in the tibias.

In addition to the skeletal phenotype, the siblings manifested significant developmental delay with brain MRI abnormalities, a severe unclassified immunodeficiency, and normal parathyroid hormone concentration with mild hypercalcemia.

One sibling had a more severe phenotype, particularly immunodeficiency, and died of Epstein-Barr virus induced small muscle cancer at 10 years of age.

Mouse models support impaired chondrocyte development with skeletal dysplasia phenotye.
Sources: Expert list, Literature
Mendeliome v0.9616 MYH10 Krithika Murali gene: MYH10 was added
gene: MYH10 was added to Mendeliome. Sources: Expert list,Literature
Mode of inheritance for gene: MYH10 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MYH10 were set to 24825879; 24901346; 25356899; 22495309; 25003005
Phenotypes for gene: MYH10 were set to Microcephaly; Intellectual Disability
Review for gene: MYH10 was set to GREEN
Added comment: De novo variants were identified in 5 unrelated individuals with moderate-severe ID and developmental delay.

Other reported phenotypic features include microcephaly (4/5), IUGR/failure to thrive (4/5), cerebral atrophy (3/5), hydrocephalus (2/5), congenital bilateral hip dysplasia (2/5), cerebellar atrophy (1/5), congenital diaphragmatic hernia (1/5), cranial nerve palsy (1/5), nystagmus (1/5), dysplastic kidney (1/5).

Defects in heart development, body wall closure and other birth defects noted in mouse models.
Sources: Expert list, Literature
Mendeliome v0.9607 RNPC3 Zornitza Stark edited their review of gene: RNPC3: Added comment: PMID 33650182: third individual reported with growth failure and ID.; Changed rating: GREEN; Changed publications: 29866761, 32462814, 33650182; Changed phenotypes: Growth hormone deficiency, Intellectual disability
Mendeliome v0.9607 COG6 Zornitza Stark changed review comment from: More than 5 unrelated families reported. Key features include growth retardation, developmental delay, microcephaly, liver and gastrointestinal disease, joint contractures and episodic fever. Ectodermal signs such as hypohidrosis/hyperthermia, hyperkeratosis and tooth anomalies are prominent. Note Shaheen syndrome, MIM#615328 is an allelic disorder, with overlapping clinical features, but normal transferring isoforms recorded creating confusion about whether it represents a distinct entity.; to: More than 5 unrelated families reported. Key features include growth retardation, developmental delay, microcephaly, liver and gastrointestinal disease, joint contractures and episodic fever. Ectodermal signs such as hypohidrosis/hyperthermia, hyperkeratosis and tooth anomalies are prominent. Note Shaheen syndrome, MIM#615328 is an allelic disorder, with overlapping clinical features, but normal transferrin isoforms recorded creating confusion about whether it represents a distinct entity.
Mendeliome v0.9604 OTUD7A Zornitza Stark edited their review of gene: OTUD7A: Added comment: Additional patient reported in PMID 33381903, with hypotonia, ID and seizures. Bi-allelic LoF variants. Some supportive functional data.; Changed rating: AMBER; Changed publications: 31997314, 29395075, 29395074, 33381903
Mendeliome v0.9581 SIM1 Zornitza Stark edited their review of gene: SIM1: Added comment: At least 20 probands with reduced penetrance reported.

PMID:33434169;
1x missense inherited from normal mother

PMID:30926952;
2x unrelated - 1 missense 1 splice. Family history noted

PMID:23778136;
4 children with clinical features of PWL syndrome, including severe obesity - all missense
1x inherited from normal father

PMID:23778139;
at least 13 families with segregation and reduced penetrance evidence - all missense
In vitro luciferase done to show LoF

NOTE:
Individuals with Prader-Willi-like phenotype may have 6q16.2del instead, which encompasses SIM1; Changed rating: GREEN; Changed publications: 33434169, 30926952, 23778136, 23778139; Changed phenotypes: congenital obesity, Prader-Willi-like syndrome; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.9564 SPATA5L1 Paul De Fazio gene: SPATA5L1 was added
gene: SPATA5L1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SPATA5L1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SPATA5L1 were set to 34626583
Phenotypes for gene: SPATA5L1 were set to Intellectual disability; spastic-dystonic cerebral palsy; epilepsy; hearing loss
Review for gene: SPATA5L1 was set to GREEN
gene: SPATA5L1 was marked as current diagnostic
Added comment: 47 individuals from 26 unrelated families from various ethnicities with biallelic variants reported. Phenotypes include ID, hearing impairment, movement disorder, abnormal MRI, hypotonia, visual impairment, epilepsy, and microcephaly.
Sources: Literature
Mendeliome v0.9543 EHBP1L1 Krithika Murali gene: EHBP1L1 was added
gene: EHBP1L1 was added to Mendeliome. Sources: Expert list,Literature
Mode of inheritance for gene: EHBP1L1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: EHBP1L1 were set to 34645488; 26833786
Phenotypes for gene: EHBP1L1 were set to Non-immune hydrops fetalis
Review for gene: EHBP1L1 was set to AMBER
Added comment: No OMIM gene disease association.

Biallelic EHBP1L1 variants identified in 2 consanguineous families from Saudi Arabia with non-immune hydrops fetalis resulting in recurrent fetal loss. Supportive mouse models for this phenotype also reported.
Sources: Expert list, Literature
Mendeliome v0.9538 CDH1 Krithika Murali gene: CDH1 was added
gene: CDH1 was added to Mendeliome. Sources: Expert list,Literature
Mode of inheritance for gene: CDH1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Phenotypes for gene: CDH1 were set to Blepharocheilodontic syndrome 1- MIM#119580; Cleft lip and palate
Review for gene: CDH1 was set to GREEN
Added comment: Well-established gene-disease association with blepharocheilodontic syndrome (BDC) and orofacial clefting.

Gene also associated with cancer predisposition - diffuse gastric cancer (juvenile onset reported) and lobular breast cancer.
Sources: Expert list, Literature
Mendeliome v0.9537 CACNA1C Krithika Murali gene: CACNA1C was added
gene: CACNA1C was added to Mendeliome. Sources: Expert list,Literature
Mode of inheritance for gene: CACNA1C was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Phenotypes for gene: CACNA1C were set to Timothy syndrome - MIM# 601005; Neurodevelopmental abnormalities and epilepsy, no OMIM#; Long QT syndrome 8- MIM#618447
Review for gene: CACNA1C was set to GREEN
Added comment: Well-established gene-disease association with Timothy Syndrome

Rodan et al. (2021) reported 25 individuals from 22 families with heterozygous truncating and missense variants in CACNA1C. The individuals presented with developmental delays, intellectual disability, autism, hypotonia, ataxia, and epilepsy BUT absence of classic features of Timothy syndrome or long QT syndrome.
Sources: Expert list, Literature
Mendeliome v0.9537 BGN Krithika Murali gene: BGN was added
gene: BGN was added to Mendeliome. Sources: Expert list,Literature
Mode of inheritance for gene: BGN was set to Other
Publications for gene: BGN were set to 27236923; 27632686
Phenotypes for gene: BGN were set to Meester-Loeys syndrome - #300989; Spondyloepimetaphyseal dysplasia, X-linked - #300106
Review for gene: BGN was set to GREEN
Added comment: Well-established gene-disease associated with X-linked spondyloepimetaphyseal dysplasia (SEMD) and Meester-Loeys syndrome (connective tissue disorder with phenotypic features including aortic dissection, aortic aneurysym, dysmorphism, joint hypermobility and mild skeletal dysplasia - with juvenile-onset reported in males)

SEMD - X-linked recessive inheritance
Meester-Loeys syndrome - hemizygous males, monoallelic mutations may cause disease in females (may be less severe, later onset than males)
Sources: Expert list, Literature
Mendeliome v0.9537 ACTC1 Krithika Murali gene: ACTC1 was added
gene: ACTC1 was added to Mendeliome. Sources: Expert list,Literature
Mode of inheritance for gene: ACTC1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ACTC1 were set to 26061005; 17947298; 31430208; 18403758; 30384889
Phenotypes for gene: ACTC1 were set to Atrial septal defect 5, MIM# 612794; Cardiomyopathy, dilated, 1R - MIM# 613424; Cardiomyopathy, hypertrophic, 11 - #612098
Review for gene: ACTC1 was set to GREEN
Added comment: Four families reported with congenital heart disease and variants in this gene. Note gene is also associated with cardiomyopathies, including paediatric-onset dilated and hypertrophic cardiomyopathy.
Sources: Expert list, Literature
Mendeliome v0.9504 MANBA Zornitza Stark changed review comment from: Two mono-allelic variants reported in association with isolated nystagmus. Note bi-allelic variants cause a lysosomal storage disorder.; to: Two mono-allelic variants reported in association with isolated nystagmus.
Mendeliome v0.9504 MANBA Zornitza Stark edited their review of gene: MANBA: Added comment: Two mono-allelic variants reported in association with isolated nystagmus. Note bi-allelic variants cause a lysosomal storage disorder.; Changed publications: 30552791, 25741867; Changed phenotypes: Mannosidosis, beta, MIM# 248510, MONDO:0009562, Nystagmus, autosomal dominant; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.9473 KCNJ13 Zornitza Stark changed review comment from: LCA and bi-allelic variants: at least 4 individuals reported. Green.

Single family reported with snowflake vitreoretinal degeneration and mono-allelic variant, supportive functional data. Amber/Red.; to: Variants in KCNJ13 are associated with two retinal disorders; Leber congenital amaurosis (LCA) and snowflake vitreoretinal degeneration (SVD), though individuals with bi-allelic variants and LCA with subsequent fibrovascular proliferation described (PMID 31647904).

LCA and bi-allelic variants: at least 4 individuals reported. Green.

Single family reported with snowflake vitreoretinal degeneration and mono-allelic variant, supportive functional data. Amber/Red.
Mendeliome v0.9469 BCL9L Krithika Murali gene: BCL9L was added
gene: BCL9L was added to Mendeliome. Sources: Literature,Expert list,Other
Mode of inheritance for gene: BCL9L was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: BCL9L were set to 23035047; 8757136
Phenotypes for gene: BCL9L were set to Heterotaxy; Congenital Heart Disease
Review for gene: BCL9L was set to AMBER
Added comment: Novel gene disease assocaition. Saunders et al., 2012 (PMID: 23035047) report biallelic BCL9L variants in 2 affected brothers with heterotaxy and congenital heart disease, heterozygous in unaffected parents. Functional evidence in zebrafish (PMID 8757136)
Sources: Literature, Expert list, Other
Mendeliome v0.9467 ACTC1 Krithika Murali gene: ACTC1 was added
gene: ACTC1 was added to Mendeliome. Sources: Literature,Expert list
Mode of inheritance for gene: ACTC1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ACTC1 were set to 17947298; 31430208
Phenotypes for gene: ACTC1 were set to Atrial septal defect 5 - MIM# 612794; Cardiomyopathy, dilated, 1R - MIM# 613424; Cardiomyopathy, hypertrophic, 11 - #612098; Left ventricular noncompaction 4 - #613424
Review for gene: ACTC1 was set to GREEN
Added comment: Three families reported with congenital heart disease and variants in this gene. Gene is also associated with cardiomyopathies, including paediatric onset.
Sources: Literature, Expert list
Mendeliome v0.9452 DEF6 Zornitza Stark edited their review of gene: DEF6: Added comment: Additional family reported with 4 affected siblings.; Changed rating: GREEN; Changed publications: 31308374, 32562707; Changed phenotypes: Immunodeficiency 87 and autoimmunity, MIM# 619573, Systemic autoimmunity
Mendeliome v0.9402 TBK1 Zornitza Stark Phenotypes for gene: TBK1 were changed from to Frontotemporal dementia and/or amyotrophic lateral sclerosis 4, MIM# 616439
Mendeliome v0.9392 TBK1 Lucy Spencer reviewed gene: TBK1: Rating: ; Mode of pathogenicity: None; Publications: PMID: 31000212, 25943890; Phenotypes: Frontotemporal dementia, amyotrophic lateral sclerosis; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.9389 ZAR1 Zornitza Stark gene: ZAR1 was added
gene: ZAR1 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: ZAR1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ZAR1 were set to 29574422; 31598710; 12539046
Phenotypes for gene: ZAR1 were set to Multi locus imprinting disturbance in offspring
Review for gene: ZAR1 was set to RED
Added comment: Single report of biallelic variants in this gene in a mother of a child with Multi locus imprinting disturbance (MLID) with some features of Beckwith Wiedemann Syndrome. Shown to be a maternal effect gene that functions at the oocyte to embryo transition.
Sources: Expert Review
Mendeliome v0.9388 UHRF1 Zornitza Stark gene: UHRF1 was added
gene: UHRF1 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: UHRF1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: UHRF1 were set to 29574422; 28976982
Phenotypes for gene: UHRF1 were set to Multi locus imprinting disturbance in offspring
Review for gene: UHRF1 was set to RED
Added comment: Single report of biallelic variants in this gene in a mother of a child with Multi locus imprinting disturbance (MLID) and Silver Russell Syndrome phenotype. Maenohara et al demonstrate functions of UHRF1 during the global epigenetic reprogramming of oocytes and early embryos.
Sources: Expert Review
Mendeliome v0.9379 OOEP Zornitza Stark gene: OOEP was added
gene: OOEP was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: OOEP was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: OOEP were set to 29574422
Phenotypes for gene: OOEP were set to Multi locus imprinting disturbance in offspring
Review for gene: OOEP was set to RED
Added comment: Single report of biallelic variants in this gene in a mother of a child with Multi locus imprinting disturbance (MLID) and a transient neonatal diabetes mellitus phenotype.

This gene encodes part of the subcortical maternal complex (SCMC). Other genes in this group act as 'maternal effect' genes and are associated with early embryonic arrest, recurrent hydatiform mole and MLID in offspring.

As is the case for other genes encoding components of the SCMC, the pathogenicity of variants can be difficult to establish as reproductive outcomes are not recorded in genomic databases and variants may be listed in population databases as they are not classed as pathogenic in males or women with no reproductive history.

Functional studies of genes encoding components of the SCMC are limited as their expression is restricted to the oocyte and early embryo.
Sources: Literature
Mendeliome v0.9378 ZNF445 Zornitza Stark gene: ZNF445 was added
gene: ZNF445 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ZNF445 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ZNF445 were set to 34039421; 30602440; 30846001
Phenotypes for gene: ZNF445 were set to Temple syndrome; Multi locus imprinting disturbance (MLID)
Review for gene: ZNF445 was set to RED
Added comment: Single report (Kagami 2021) of a child with Temple syndrome and MLID found to have a novel homozygous truncating variant in ZNF445.

ZNF445 has been shown to play a critical role in the maintenance of postfertilisation methylation imprints (Takahashi 2019). Mechanism and parent of origin effects remain uncertain.
Sources: Literature
Mendeliome v0.9376 NSRP1 Zornitza Stark gene: NSRP1 was added
gene: NSRP1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NSRP1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NSRP1 were set to 34385670
Phenotypes for gene: NSRP1 were set to Epilepsy; Cerebral palsy; microcephaly; Intellectual disability
Review for gene: NSRP1 was set to GREEN
Added comment: Novel gene regulating splicing. Biallelic LoF pathogenic variants reported in 6 individuals from 3 unrelated families associated with a phenotype characterized by developmental delay, epilepsy, microcephaly, and spastic cerebral palsy.
Sources: Literature
Mendeliome v0.9373 ERGIC1 Zornitza Stark edited their review of gene: ERGIC1: Added comment: Pehlivan et al. 2019 (PMID:31230720) identified the third case of arthrogryposis in a child who harboured a previously unreported homozygous variant (c.782G>A; p.Gly261Asp) in this gene. Parents were heterozygous carriers. Functional studies were not performed.; Changed rating: GREEN; Changed publications: 28317099, 34037256, 31230720
Mendeliome v0.9370 GABRD Zornitza Stark changed review comment from: Limited reports. The variant originally reported in PMID 15115768 in association with epilepsy is present in >4,000 hets in gnomad and 55 homs which is not consistent with a Mendelian disorder.; to: Susceptibility to epilepsy, MIM#613060: Limited reports. The variant originally reported in PMID 15115768 in association with epilepsy is present in >4,000 hets in gnomad and 55 homs which is not consistent with a Mendelian disorder.
Mendeliome v0.9370 GABRD Zornitza Stark edited their review of gene: GABRD: Added comment: 10 individuals with 7 unique variants reported in individuals with neurodevelopmental disorders and epilepsy. Six of the variants were demonstrated to be GoF, and those individuals with neurodevelopmental disorders with behavioural issues, various degrees of intellectual disability, generalized epilepsy with atypical absences and generalized myoclonic and/or bilateral tonic-clonic seizures. In contrast, the one individual carrying a loss-of-function variant had normal intelligence, no seizure history but has a diagnosis of autism spectrum disorder and suffering from elevated internalizing psychiatric symptoms.; Changed rating: GREEN; Changed publications: 15115768, 34633442; Changed phenotypes: Intellectual disability, Epilepsy, Susceptibility to epilepsy, MIM#613060
Mendeliome v0.9366 NLRP5 Zornitza Stark edited their review of gene: NLRP5: Added comment: 'Maternal effect gene'
Part of the subcortical maternal complex

Report of five mothers carrying either monoallelic or biallelic variants in NLRP5, who had both unaffected offspring and offspring with BWS-MLID (Doherty 2015). Report of one family where the mother carried biallelic variants in NLRP5, had one offspring with BWS, one unaffected offspring and multiple miscarriages (Sparago 2019).

Reports of at least three unrelated individuals with recurrent early embryonic arrest carrying biallelic variants in NLRP5. Functional work suggesting protein degradation in affected human cell lines (Mu 2019, Xu 2020).; Changed rating: GREEN; Changed publications: 32222962, 31829238, 30877238, 26323243, 34440388; Changed phenotypes: Early embryonic arrest, Multi locus imprinting disturbance in offspring; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.9365 DSTYK Zornitza Stark changed review comment from: Mono-allelic variants and CAKUT: Multiple families reported, zebrafish model has multiple congenital anomalies including of the GU tract. Established gene-disease association.

Bi-allelic variants and HSP: Three families reported, but all had same intragenic deletion/insertion, suggestive of founder effect.; to: Mono-allelic variants and CAKUT: Multiple families reported, zebrafish model has multiple congenital anomalies including of the GU tract. Disputed gene-disease association as original variants present at relatively high pop frequency as per review by Ain Roesley.

Bi-allelic variants and HSP: Three families reported, but all had same intragenic deletion/insertion, suggestive of founder effect.
Mendeliome v0.9355 USP48 Zornitza Stark Added comment: Comment when marking as ready: Borderline Green: one of the variants is present at a high frequency in the normal population. However, even if just two families are considered, supportive functional data including zebrafish model.
Mendeliome v0.9351 MARS Zornitza Stark changed review comment from: Association with CMT: Two families reported. One mutation positive family member was asymptomatic. Second case is proband only testing with no segregation or functional data. Note one of the variants identified in dominant MARS1-associated neuropathy, p.Arg618Cys, has also been reported in AR MARS1-related pulmonary interstiatial/liver disease.; to: Association with CMT and mono-allelic variants: Two families reported. One mutation positive family member was asymptomatic. Second case is proband only testing with no segregation or functional data. Note one of the variants identified in dominant MARS1-associated neuropathy, p.Arg618Cys, has also been reported in AR MARS1-related pulmonary interstiatial/liver disease.
Mendeliome v0.9351 MARS Zornitza Stark changed review comment from: Association with interstitial lung and liver disease: More than 5 unrelated families reported. Founder variants in Reunion Island, p.Ser567Leu and p.Ala393Thr, in cis.

Pathologic examination of lung lavage is consistent with pulmonary alveolar proteinosis.; to: Association with interstitial lung and liver disease and bi-allelic variants: More than 5 unrelated families reported. Founder variants in Reunion Island, p.Ser567Leu and p.Ala393Thr, in cis.

Pathologic examination of lung lavage is consistent with pulmonary alveolar proteinosis.
Mendeliome v0.9351 MARS Zornitza Stark changed review comment from: Two families reported. One mutation positive family member was asymptomatic. Second case is proband only testing with no segregation or functional data. Note one of the variants identified in dominant MARS1-associated neuropathy, p.Arg618Cys, has also been reported in AR MARS1-related pulmonary interstiatial/liver disease.; to: Association with CMT: Two families reported. One mutation positive family member was asymptomatic. Second case is proband only testing with no segregation or functional data. Note one of the variants identified in dominant MARS1-associated neuropathy, p.Arg618Cys, has also been reported in AR MARS1-related pulmonary interstiatial/liver disease.
Mendeliome v0.9351 MARS Zornitza Stark edited their review of gene: MARS: Added comment: Association with interstitial lung and liver disease: More than 5 unrelated families reported. Founder variants in Reunion Island, p.Ser567Leu and p.Ala393Thr, in cis.

Pathologic examination of lung lavage is consistent with pulmonary alveolar proteinosis.; Changed rating: GREEN; Changed publications: 23729695, 24354524, 29655802, 24103465, 25913036; Changed phenotypes: Interstitial lung and liver disease, MIM#615486, Charcot-Marie-Tooth disease, axonal, type 2U, MIM# 616280; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.9347 USP48 Eleanor Williams gene: USP48 was added
gene: USP48 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: USP48 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: USP48 were set to 34059922
Phenotypes for gene: USP48 were set to non-syndromic hearing loss; nonsyndromic genetic deafness, MONDO:0019497
Penetrance for gene: USP48 were set to Incomplete
Review for gene: USP48 was set to GREEN
Added comment: PMID: 34059922 - Bassani et al 2021 - 3 cases reported with variants in USP48 and non syndromic hearing loss. They first analysed 4-generation Italian family with 6 individuals with hearing loss. The only rare variant segregating with the disease was a missense variant in USP48 (NM_032234.7:c.1216G > A, NP_115612.4:p.(Gly406Arg)). The variant is present in GnomAD v2.1.1 with a minor allele frequency (MAF) of 6.7 × 10−5 (17 allele out of 251 304 with no homozygotes). They also observed one hearing individual in the family who was heterozygous for the variant, suggesting incomplete penetrance.
In a Dutch family the found by exome sequencing a missense variant in USP48 (NM_032236.7:c.2215_2216delinsTT, NP_115612.4:p.(Thr739Leu)). The probands mother and uncle were also affected by no sequence data was available for analysis.
In a French family a proband is reported with right profound sensorineural hearing impairment (at 12 months), but normal left hearing (at 6 years old). The patient is heterozygote for a de novo splice variant in USP48 (NM_032236.7:c.3058 + 2 T > C, NP_115612.4:p.?;) which is not found in GnomAD and is predicted to result in a frameshift resulting in either NMD or a truncated protein.
In functional experiments they showed that the two missense variants found in the Italian and Dutch families, and a shortened protein as predicted for the variant found in the French variant, showed an impaired ability to cleave tetra-ubiquitin into tri-, di- and mono-ubiquitin. Using immunohistology, they show that the human USP48 protein is present in fetal inner ear specimens.
In addition zebrafish lacking usp48 showed a significant decrease of auditory response in acoustic startle response assays at 600 and 800 Hz wavelengths.
Sources: Literature
Mendeliome v0.9347 AARS Eleanor Williams changed review comment from: PMID: 33909043 - Botta et al 2021 - using WES or WGS analysis of 34 unsolved cases with multi-system phenotypes, but with hair alterations that are typical of trichothiodystrophy but no reported photosensitivity, they identified 2 unrelated cases carrying 4 potentially pathogenic variants in the AARS1 gene (previously known as AARSB. Both patients had very rare compound heterozygous missense variants. In one family there was an older affected sibling but segregation data was not available for either family.; to: PMID: 33909043 - Botta et al 2021 - using WES or WGS analysis of 34 unsolved cases with multi-system phenotypes, but with hair alterations that are typical of trichothiodystrophy but no reported photosensitivity, they identified 2 unrelated cases carrying 4 potentially pathogenic variants in the AARS1 gene (previously known as AARSB. Both patients had very rare compound heterozygous missense variants. In one family there was an older affected sibling but segregation data was not available for either family. Functional studies suggest that the variants affects gene product stability.
Mendeliome v0.9334 GDF11 Zornitza Stark edited their review of gene: GDF11: Added comment: Ravenscroft et al. (2021) report additional 6 probands who presented with craniofacial (5/6), vertebral (5/6), neurological (6/6), visual (4/6), cardiac (3/6), auditory (3/6), and connective tissue abnormalities (3/6). They found de novo and inherited variants in GDF11. gdf11 mutant zebrafish showed craniofacial abnormalities and body segmentation defects that matched some patient phenotypes. Expression of the patients’ variants in the fly showed that one nonsense variant in GDF11 is a severe loss-of-function (LOF) allele whereas the missense variants are partial LOF variants.; Changed rating: GREEN; Changed publications: 31215115, 34113007
Mendeliome v0.9333 PLXNA1 Zornitza Stark gene: PLXNA1 was added
gene: PLXNA1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PLXNA1 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: PLXNA1 were set to 34054129
Phenotypes for gene: PLXNA1 were set to Neurodevelopmental disorder with cerebral and eye anomalies
Review for gene: PLXNA1 was set to GREEN
Added comment: Dworschak et al. (2021) via WES reported 10 patients from 7 families with biallelic (n=7) or de novo (n=3) PLXNA1 variants. Shared phenotypic features include global developmental delay (9/10), brain anomalies (6/10), and eye anomalies (7/10). Seizures were predominantly reported in patients with monoallelic variants. Zebrafish studies showed an embryonic role of plxna1a in the development of the central nervous system and the eye. Biallelic variants in the extracellular Plexin-A1 domains lead to impaired dimerization or lack of receptor molecules, whereas monoallelic variants in the intracellular Plexin-A1 domains might impair downstream signaling through a dominant-negative effect.
Sources: Literature
Mendeliome v0.9328 UNC13B Zornitza Stark gene: UNC13B was added
gene: UNC13B was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: UNC13B was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: UNC13B were set to 33876820
Phenotypes for gene: UNC13B were set to Epilepsy
Review for gene: UNC13B was set to RED
Added comment: No OMIM human disease association. Gene encodes a presynaptic protein Munc13-2 highly expressed in the brain (predominantly cerebral cortex).

Variant interpretation data in human epilepsy cohort somewhat conflicting and restricted to a single study. Conflicting data esp regarding MOI, and evidence for pathogenicity of several of the variants is limited.

Wang et al, Brain, 2021 - trio-based whole-exome sequencing identified UNC13B in 12 individuals affected by partial epilepsy and/or febrile seizures from 8 unrelated families. Identified:
x1 de novo nonsense variant, absent in gnomad, damaging in silicos
x1 de novo splice site, absent in gnomad, damaging in silicos
x1 splice site variant present in unaffected mother (low frequency in gnomad)
x2 compound het in one individual - more severe phenotype postulated (x1 variant present in contro cohortl, the other variant present in low frequency in gnomad)
x1 missense variant - in Han Chinese major depressive disorders study, not in gnomad
x1 missense variant - highly conserved residue, not in gnomad
x2 other missense variant - highly conserved residue, low frequency in gnomad
Latter 4 missense variants cosegregated with affected individuals in the families

In Drosophila, seizure rate and duration were increased by Unc13b knockdown compared to wild-type flies, but these effects were less pronounced than in sodium voltage-gated channel alpha subunit 1 (Scn1a) knockdown Drosophila

De novo UNC13B variants previously reported in bipolar disorder and autism spectrum disorder
Sources: Expert Review
Mendeliome v0.9303 ZDHHC15 Krithika Murali changed review comment from: Lewis et al Neurology Genetics 2021

Functional analysis of 4 ZDHHC15 variants - x2 Jin et al, others identified through GeneMatcher

Yeast cells expressing ZDHHC15 p.L13P (Jin et al, maternally inherited), p.K115R (maternally inherited) and p.S330p were indistinguishable from cells harboring the reference ZDHHC15 allele, however those expressing p.H158R (also reported in Jin et al, maternally inherited) disrupted normal protein function.; to: Lewis et al Neurology Genetics 2021

Functional analysis of 4 ZDHHC15 variants - x2 Jin et al Nat Genet 2020 PMID 32989326, others identified through GeneMatcher

Yeast cells expressing ZDHHC15 p.L13P (Jin et al, maternally inherited), p.K115R (maternally inherited) and p.S330p were indistinguishable from cells harboring the reference ZDHHC15 allele, however those expressing p.H158R (also reported in Jin et al, maternally inherited) disrupted normal protein function.
Mendeliome v0.9297 ATP11A Elena Savva gene: ATP11A was added
gene: ATP11A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ATP11A was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: ATP11A were set to PMID: 34403372
Phenotypes for gene: ATP11A were set to Neurological disorder
Mode of pathogenicity for gene: ATP11A was set to Other
Review for gene: ATP11A was set to AMBER
Added comment: PMID: 34403372:
- Single de novo missense variant reported in a patient with developmental delay and neurological deterioration.
- Patient MRI showed severe cerebral atrophy, ventriculomegaly, hypomyelination leukodystrophy, thinned corpus callosum. Axonal neuropathy suggested.
- K/I heterozygous mice died perinatally.
- Functional studies on missense variant show plasma membrane lipid content impairment, reduced ATPase activity etc.

gnomAD: some NMD PTCs present, good quality variants found with 4-5 hets.
Sources: Literature
Mendeliome v0.9296 SHQ1 Zornitza Stark gene: SHQ1 was added
gene: SHQ1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SHQ1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SHQ1 were set to 34542157; 29178645
Phenotypes for gene: SHQ1 were set to Dystonia; Neurodegeneration
Review for gene: SHQ1 was set to AMBER
Added comment: Three unrelated families reported. Family 1: isolated dystonia only; Family 2: dystonia, and neurodegeneration; Family 3: neurodegeneration.

Rated Amber as phenotypes likely represent a continuum but currently unclear.
Sources: Literature
Mendeliome v0.9294 SARS Bryony Thompson gene: SARS was added
gene: SARS was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SARS was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SARS were set to 28236339; 34570399
Phenotypes for gene: SARS were set to Intellectual disability
Review for gene: SARS was set to AMBER
Added comment: Summary - 2 unrelated families with overlapping ID phenotype, and supporting in vitro and patient cell assays.
PMID: 28236339 - an Iranian family (distantly related) segregating a homozygous missense (c.514G>A, p.Asp172Asn) with moderate ID, microcephaly, ataxia, speech impairment, and aggressive behaviour. Also, supporting in vitro functional assays demonstrating altered protein function.
PMID: 34570399 - a consanguineous Turkish family segregating a homozygous missense (c.638G>T, p.(Arg213Leu)) with developmental delay, central deafness, cardiomyopathy, and metabolic decompensation during fever leading to death. Also, reduced protein level and enzymatic activity in patient cells.
Sources: Literature
Mendeliome v0.9285 EIF3F Zornitza Stark edited their review of gene: EIF3F: Added comment: Hüffmeier et al (2021) reported 21 patients who were homozygous/compound heterozygous for Phe232Val variant in EIF3F. All affected individuals had developmental delay and speech delay. About half had behavioural problems, altered muscular tone, hearing loss, and short stature. The study suggests that microcephaly, reduced sensitivity to pain, cleft lip/palate, gastrointestinal symptoms and ophthalmological symptoms are part of the phenotypic spectrum.; Changed publications: 30409806, 33736665; Changed phenotypes: Mental retardation, autosomal recessive 67, MIM# 618295
Mendeliome v0.9273 ARL6IP6 Zornitza Stark gene: ARL6IP6 was added
gene: ARL6IP6 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ARL6IP6 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ARL6IP6 were set to 31142202
Phenotypes for gene: ARL6IP6 were set to Cutis marmorata telangiectatica congenita
Review for gene: ARL6IP6 was set to RED
Added comment: A single case reported from a consanguineous family with a homozygous nonsense variant (p.Trp64Ter).
Sources: Literature
Mendeliome v0.9260 LEFTY2 Zornitza Stark Added comment: Comment when marking as ready: No reports since 1999.
Mendeliome v0.9250 ATP6V0C Zornitza Stark gene: ATP6V0C was added
gene: ATP6V0C was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ATP6V0C was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ATP6V0C were set to 33190975; 33090716
Phenotypes for gene: ATP6V0C were set to Epilepsy; Intellectual Disability; microcephaly
Review for gene: ATP6V0C was set to AMBER
Added comment: 9 individuals reported with deletions and ID/seizures/microcephaly, minimum overlapping region implicates ATP6V0C as the causative gene. Single case report of de novo SNV and ID/seizures.
Sources: Literature
Mendeliome v0.9249 KDM7A Zornitza Stark gene: KDM7A was added
gene: KDM7A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KDM7A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: KDM7A were set to 25666757
Phenotypes for gene: KDM7A were set to Cerebral palsy
Review for gene: KDM7A was set to RED
Added comment: Synonyms: JHDMID, KDM7, KIAA1718

De novo missense VUS identified in a WES CP cohort study, no other reports.
Sources: Literature
Mendeliome v0.9244 ARFGEF1 Zornitza Stark gene: ARFGEF1 was added
gene: ARFGEF1 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: ARFGEF1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ARFGEF1 were set to 34113008
Phenotypes for gene: ARFGEF1 were set to Intellectual disability; Epilepsy
Review for gene: ARFGEF1 was set to GREEN
Added comment: 13 individuals reported with variants in this gene and a neurodevelopmental disorder characterised by variable ID, seizures present in around half. Variants were inherited from mildly affected parents in 40% of families.
Sources: Expert Review
Mendeliome v0.9230 LRRK1 Zornitza Stark gene: LRRK1 was added
gene: LRRK1 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: LRRK1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: LRRK1 were set to 27829680; 27055475; 31571209; 32119750
Phenotypes for gene: LRRK1 were set to Osteosclerotic metaphyseal dysplasia (OSMD) (OMIM: 615198)
Review for gene: LRRK1 was set to GREEN
Added comment: At least 4 unrelated families reported.
Sources: Expert Review
Mendeliome v0.9227 KIF4A Zornitza Stark edited their review of gene: KIF4A: Added comment: Further 11 families reported. Major structural brain abnormalities present in at least 3 (hydrocephalus), variable ID in several.; Changed rating: GREEN; Changed publications: 24812067, 34346154
Mendeliome v0.9218 FMN1 Bryony Thompson gene: FMN1 was added
gene: FMN1 was added to Mendeliome. Sources: Literature
SV/CNV tags were added to gene: FMN1.
Mode of inheritance for gene: FMN1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FMN1 were set to 20610440; 19383632; 15202026
Phenotypes for gene: FMN1 were set to oligosyndactyly; radioulnar synostosis; hearing loss; renal defects
Review for gene: FMN1 was set to AMBER
Added comment: A 263 Kb homozygous deletion of FMN1 has been identified in a single case with oligosyndactyly, radioulnar synostosis, hearing loss and renal defects. Also, a supporting null mouse model with oligosyndactyly. Also, a large duplication including GREM1 reported in association with Cenani–Lenz syndrome.
Sources: Literature
Mendeliome v0.9216 LBX1 Zornitza Stark gene: LBX1 was added
gene: LBX1 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: LBX1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: LBX1 were set to 30487221
Phenotypes for gene: LBX1 were set to Central hypoventilation syndrome, congenital, 3, MIM#619483
Review for gene: LBX1 was set to AMBER
Added comment: Two siblings reported with homozygous LoF variant in this gene, supportive mouse model.
Sources: Expert Review
Mendeliome v0.9203 B9D1 Bryony Thompson changed review comment from: hNow N
PMID: 34338422 - compound het missense and frameshift variant in a proband with anal atresia with vestibular fistula, ventricular septal defect, and right renal agenesis (VACTERL cohort)
PMID: 21763481 - B9d1 -/- mouse displayed polydactyly, kidney cysts, ductal plate malformations, and abnormal patterning of the neural tube, concomitant with compromised ciliogenesis, ciliary protein localization, and Hedgehog (Hh) signal transduction.; to: 3 unrelated cases with a syndromic phenotype and a supporting null mouse model
PMID: 34338422 - compound het missense and frameshift variant in a proband with anal atresia with vestibular fistula, ventricular septal defect, and right renal agenesis (VACTERL cohort)
PMID: 24886560 - 2 Joubert syndrome cases
PMID: 21763481 - B9d1 -/- mouse displayed polydactyly, kidney cysts, ductal plate malformations, and abnormal patterning of the neural tube, concomitant with compromised ciliogenesis, ciliary protein localization, and Hedgehog (Hh) signal transduction.
Mendeliome v0.9199 PNLDC1 Zornitza Stark gene: PNLDC1 was added
gene: PNLDC1 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: PNLDC1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PNLDC1 were set to 34347949
Phenotypes for gene: PNLDC1 were set to Spermatogenic failure 57, MIM# 619528
Review for gene: PNLDC1 was set to GREEN
Added comment: Four unrelated individuals reported.
Sources: Expert Review
Mendeliome v0.9195 HSCB Zornitza Stark gene: HSCB was added
gene: HSCB was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: HSCB was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: HSCB were set to 32634119
Phenotypes for gene: HSCB were set to Anaemia, sideroblastic, 5, MIM# 619523
Review for gene: HSCB was set to AMBER
Added comment: Single individual reported with compound heterozygous variants in this gene. Good functional data including animal model.
Sources: Expert list
Mendeliome v0.9171 TAF2 Zornitza Stark edited their review of gene: TAF2: Added comment: New report of 4 individuals from 2 unrelated families, with severe intellectual disability, global developmental delay, postnatal microcephaly, feet deformities and thin corpus callosum. They had homozygous TAF2 missense variants detected by Exome Sequencing.; Changed rating: GREEN; Changed publications: 21937992, 22633631, 26350204, 24084144, 34474177
Mendeliome v0.9170 ERGIC1 Zornitza Stark gene: ERGIC1 was added
gene: ERGIC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ERGIC1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ERGIC1 were set to 28317099; 34037256
Phenotypes for gene: ERGIC1 were set to Arthrogryposis multiplex congenita 2, neurogenic type; OMIM # 208100
Review for gene: ERGIC1 was set to AMBER
Added comment: Reinstein et al. (2018) used WES in a large consanguineous Israeli Arab kindred consisting of 16 patients affected with the neurogenic type of arthrogryposis multiplex congenita. They identified a homozygous missense (V98E) mutation in ERGIC1 gene, which segregated with the disorder in the kindred, and was not found in the ExAC database or in 212 ethnically matched controls. Functional studies of the variant and studies of patient cells were not performed. ERGIC1 encodes a cycling membrane protein which has a possible role in transport between endoplasmic reticulum and Golgi.

Marconi et al (2021) used genome sequencing in a consanguineous family with 2 affected siblings presenting congenital arthrogryposis and some facial dysmorphism. They identified a homozygous 22.6 Kb deletion encompassing the promoter and first exon of ERGIC1. mRNA quantification showed the complete absence of ERGIC1 expression in the two affected siblings and a decrease in heterozygous parents.
Sources: Literature
Mendeliome v0.9162 GPX1 Zornitza Stark gene: GPX1 was added
gene: GPX1 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: GPX1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GPX1 were set to 1131421; 476008; 5766310; 2492138
Phenotypes for gene: GPX1 were set to Haemolytic anaemia due to glutathione peroxidase deficiency MIM#614164
Review for gene: GPX1 was set to RED
Added comment: No individuals reported with GPX1 variants identified as the cause of Haemolytic anaemia due to glutathione peroxidase deficiency. Multiple papers report a number of cases of Haemolytic anaemia due to glutathione peroxidase deficiency, however there is no defined link or variant to GPX1 (PMID: 5766310. PMID: 1131421, PMID: 2492138, PMID: 476008)

Overall, lowered glutathione peroxidase activity has been observed in a number of individuals with haemolytic anaemia however the evidence for a cause-and-effect relationship between the enzyme deficiency and the presenting anaemia is not evident.
Sources: Expert Review
Mendeliome v0.9144 STEAP3 Zornitza Stark changed review comment from: Single family reported. Three affected sibs, variant inherited from unaffected father. Some supportive functional evidence.; to: Single family reported. Three affected sibs, variant inherited from unaffected father. Some supportive functional evidence.

Conflicting evidence (PMID 26675350): Large Chinese study (of normal and α-thalassemia subjects) investigated the prevalence of STEAP3 mutations in humans and their physiologic consequences. Discovered a relatively high prevalence of potentially harmful recessive alleles. However, whilst the identified STEAP3 mutations exhibited impaired ferrireductase activity in vitro, they had little or no effect on erythrocyte phenotypes
Mendeliome v0.9137 KCNN4 Zornitza Stark changed review comment from: At least three families reported.
Sources: Expert list; to: Well established gene-disease association, more than 10 families and functional data.
Mendeliome v0.9101 UMPS Zornitza Stark edited their review of gene: UMPS: Added comment: 20 unrelated patients have been reported with biallelic missense variants; one mouse model

Orotic aciduria is characterised by megaloblastic anaemia and orotic acid crystalluria, frequently associated with a degree of physical and intellectual disability. Other features include, congenital malformations (Atrial/ Ventricular septal defect) and immunodeficiencies (T-cell dysfunction, failure to thrive, recurrent infections).

Haematology features
- Megaloblastic anaemia
- Low to normal reticulocyte count
- Anisocytosis
- Poikilocytosis
- Hypochromia; Changed publications: 9042911, 33489760; Changed phenotypes: Orotic aciduria, MIM# 258900
Mendeliome v0.9098 TPI1 Zornitza Stark changed review comment from: More than 10 unrelated families reported; bi-allelic (missense, nonsense, frameshift) variants; Common p.Glu104Asp variant in Northern European population

Triosephosphate isomerase deficiency (TPID) is an autosomal recessive multisystem disorder characterised by early childhood onset congenital hemolytic anaemia, and progressive neuromuscular dysfunction. Many patients die from respiratory failure in childhood. The neurological features are variable, but usually includes lower motor neuron dysfunction with hypotonia, muscle weakness and atrophy, and hyporeflexia. Other features include intracellular accumulation of dihydroxyacetone phosphate (DHAP), particularly in red blood cells and increased susceptibility to infections.; to: More than 10 unrelated families reported; bi-allelic (missense, nonsense, frameshift) variants; Common p.Glu104Asp variant in Northern European population

Triosephosphate isomerase deficiency (TPID) is an autosomal recessive multisystem disorder characterised by early childhood onset congenital haemolytic anaemia, and progressive neuromuscular dysfunction. Many patients die from respiratory failure in childhood. The neurological features are variable, but usually includes lower motor neuron dysfunction with hypotonia, muscle weakness and atrophy, and hyporeflexia. Other features include intracellular accumulation of dihydroxyacetone phosphate (DHAP), particularly in red blood cells and increased susceptibility to infections.
Mendeliome v0.9098 TPI1 Zornitza Stark edited their review of gene: TPI1: Added comment: More than 10 unrelated families reported; bi-allelic (missense, nonsense, frameshift) variants; Common p.Glu104Asp variant in Northern European population

Triosephosphate isomerase deficiency (TPID) is an autosomal recessive multisystem disorder characterised by early childhood onset congenital hemolytic anaemia, and progressive neuromuscular dysfunction. Many patients die from respiratory failure in childhood. The neurological features are variable, but usually includes lower motor neuron dysfunction with hypotonia, muscle weakness and atrophy, and hyporeflexia. Other features include intracellular accumulation of dihydroxyacetone phosphate (DHAP), particularly in red blood cells and increased susceptibility to infections.; Changed publications: 9338582, 32873690, 8503454; Changed phenotypes: Haemolytic anaemia due to triosephosphate isomerase deficiency, MIM# 615512
Mendeliome v0.9088 IFIH1 Sarah Pantaleo changed review comment from: Rare, likely loss-of-functions IFIH1 variants identified in eight independent probands with Very Early Onset Inflammatory Bowel Disease (VEOIBD) from a combined cohort of 42 children. IFIH1 variants were significantly enriched in children with VEOIBD as compared to controls (p=0.007).
In one case of neonatal-onset IBD, a homozygous truncating variant was identified. seven carriers of LoF variants (three of whom have a second hypomorphic missense variant). Luciferase reporter assays employed to assess MDA5 activity (encoded by IFIH1). In three cases, the functional studies demonstrated that the second missense variant either did not affect protein function or was in cis with the LoF variant.; to: IFIH1 encodes MDA5, a key cystolic sensor for viral nucleic acids. Rare, likely loss-of-functions IFIH1 variants identified in eight independent probands with Very Early Onset Inflammatory Bowel Disease (VEOIBD) from a combined cohort of 42 children. IFIH1 variants were significantly enriched in children with VEOIBD as compared to controls (p=0.007).
In one case of neonatal-onset IBD, a homozygous truncating variant was identified. There were seven carriers of LoF variants identified (range of onset 6 months to 6 years of age). In three of these cases, a second hypomorphic missense variant was identified.
Luciferase reporter assays were employed to assess MDA5 activity. In some cases, the second missense variant was either proven to not affect protein function or was in cis with the LoF variant.
Complete and partial MDA5 deficiency is associated with VEOIBD with variable penetrance and expressivity, suggesting a role for impaired intestinal viral sensing in IBD pathogenesis.
Mendeliome v0.9088 IFIH1 Sarah Pantaleo changed review comment from: Rare, likely loss-of-functions IFIH1 variants identified in eight patients with Very Early Onset Inflammatory Bowel Disease (VEOIBD) with VEOIBD from a combined cohort of 42 children. One homozygous truncating variant in a neonate from a consanguineous family, seven carriers of LoF variants (three of whom also have a second hypomorphic missense variant). Luciferase reporter assays employed to assess MDA5 activity (encoded by IFIH1). In three cases, the functional studies demonstrated that the second missense variant either did not affect protein function or was in cis with the LoF variant.; to: Rare, likely loss-of-functions IFIH1 variants identified in eight independent probands with Very Early Onset Inflammatory Bowel Disease (VEOIBD) from a combined cohort of 42 children. IFIH1 variants were significantly enriched in children with VEOIBD as compared to controls (p=0.007).
In one case of neonatal-onset IBD, a homozygous truncating variant was identified. seven carriers of LoF variants (three of whom have a second hypomorphic missense variant). Luciferase reporter assays employed to assess MDA5 activity (encoded by IFIH1). In three cases, the functional studies demonstrated that the second missense variant either did not affect protein function or was in cis with the LoF variant.
Mendeliome v0.9080 COPB2 Zornitza Stark Phenotypes for gene: COPB2 were changed from Microcephaly 19, primary, autosomal recessive, MIM# 617800 to Microcephaly 19, primary, autosomal recessive, MIM# 617800; Osteoporosis and developmental delay
Mendeliome v0.9075 COPB2 Belinda Chong reviewed gene: COPB2: Rating: GREEN; Mode of pathogenicity: None; Publications: PMID: 34450031; Phenotypes: Osteoporosis and developmental delay; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.9068 CACNA1I Kristin Rigbye gene: CACNA1I was added
gene: CACNA1I was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CACNA1I was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CACNA1I were set to 33704440
Phenotypes for gene: CACNA1I were set to Neurodevelopmental disorder
Mode of pathogenicity for gene: CACNA1I was set to Other
Review for gene: CACNA1I was set to GREEN
Added comment: 4 different missense variants identified and shown to result in a gain of function.

2 individuals with de novo variants (a 3rd also suspected de novo but their father was unavailable for testing) - these patients all had severe neurodevelopmental disorders, involving severe global developmental delay, absence of speech, gross motor delay, muscular hypotonia, early-onset seizures, cortical visual impairment, and feeding difficulties. Variable clinical features include various brain malformations, startle response or seizures, postnatal growth retardation, gastroesophageal reflux, and gastrostomy.

1 family had three affected individuals - variable cognitive impairment in all, involving borderline intellectual functioning or mild or moderate intellectual disability as main clinical feature, with late-onset seizures in the mother and speech retardation in one of the children. This variant had a milder functional effect than the variants in sporadic cases.
Sources: Literature
Mendeliome v0.9068 ZNF668 Paul De Fazio changed review comment from: 5 individuals from 3 consanguineous families reported with different biallelic truncating (not NMD) variants in ZNF668. Phenotypes included microcephaly, growth deficiency, severe global developmental delay, brain malformation, and distinct facial dysmorphism.

Immunofluorescence indicated ZNF668 deficiency. An increased DNA damage phenotype was demonstrated in patient fibroblasts.
Sources: Literature; to: 2 consanguineous families reported with different biallelic truncating (not NMD) variants in ZNF668. Phenotypes included microcephaly, growth deficiency, severe global developmental delay, brain malformation, and distinct facial dysmorphism.

Immunofluorescence indicated ZNF668 deficiency. An increased DNA damage phenotype was demonstrated in patient fibroblasts.
Sources: Literature
Mendeliome v0.9067 ZNF668 Paul De Fazio changed review comment from: 5 individuals from 3 consanguineous families reported with different truncating (not NMD) variants in ZNF668. Phenotypes included microcephaly, growth deficiency, severe global developmental delay, brain malformation, and distinct facial dysmorphism.

Immunofluorescence indicated ZNF668 deficiency. An increased DNA damage phenotype was demonstrated in patient fibroblasts.
Sources: Literature; to: 5 individuals from 3 consanguineous families reported with different biallelic truncating (not NMD) variants in ZNF668. Phenotypes included microcephaly, growth deficiency, severe global developmental delay, brain malformation, and distinct facial dysmorphism.

Immunofluorescence indicated ZNF668 deficiency. An increased DNA damage phenotype was demonstrated in patient fibroblasts.
Sources: Literature
Mendeliome v0.9067 ZNF668 Paul De Fazio gene: ZNF668 was added
gene: ZNF668 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ZNF668 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ZNF668 were set to 34313816; 26633546
Phenotypes for gene: ZNF668 were set to DNA damage repair defect; microcephaly; growth deficiency; severe global developmental delay; brain malformation; facial dysmorphism
Review for gene: ZNF668 was set to GREEN
gene: ZNF668 was marked as current diagnostic
Added comment: 5 individuals from 3 consanguineous families reported with different truncating (not NMD) variants in ZNF668. Phenotypes included microcephaly, growth deficiency, severe global developmental delay, brain malformation, and distinct facial dysmorphism.

Immunofluorescence indicated ZNF668 deficiency. An increased DNA damage phenotype was demonstrated in patient fibroblasts.
Sources: Literature
Mendeliome v0.9065 SLC32A1 Zornitza Stark gene: SLC32A1 was added
gene: SLC32A1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SLC32A1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SLC32A1 were set to 34038384
Phenotypes for gene: SLC32A1 were set to Genetic epilepsy with febrile seizures plus
Review for gene: SLC32A1 was set to GREEN
Added comment: 8 unrelated families reported, including segregation evidence in two large pedigrees. Variants are predicted to alter γ-aminobutyric acid (GABA) transport into synaptic vesicles, leading to altered neuronal inhibition.
Sources: Literature
Mendeliome v0.9034 ALAS2 Zornitza Stark Phenotypes for gene: ALAS2 were changed from to Anaemia, sideroblastic, 1, MIM# 300751; Protoporphyria, erythropoietic, X-linked, MIM# 300752
Mendeliome v0.9031 ALAS2 Zornitza Stark reviewed gene: ALAS2: Rating: GREEN; Mode of pathogenicity: None; Publications: 10029606, 7949148, 10029606, 25615817; Phenotypes: Anaemia, sideroblastic, 1, MIM# 300751, Protoporphyria, erythropoietic, X-linked, MIM# 300752; Mode of inheritance: X-LINKED: hemizygous mutation in males, biallelic mutations in females
Mendeliome v0.9026 TOM1 Zornitza Stark gene: TOM1 was added
gene: TOM1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: TOM1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: TOM1 were set to 31263572
Phenotypes for gene: TOM1 were set to Immunodeficiency 85 and autoimmunity, MIM# 619510
Review for gene: TOM1 was set to RED
Added comment: Parent and child reported with onset of atopic eczema and recurrent respiratory infections in the first decade of life; autoimmune enteropathy with vomiting, diarrhoea, and poor overall growth. More variable features included autoimmune oligoarthritis, interstitial pneumonitis, and EBV viremia. Laboratory studies showed hypogammaglobulinaemia and abnormal T-cell function, consistent with a combined immunodeficiency. Missense variant in TOM1, with limited functional data.
Sources: Expert list
Mendeliome v0.9025 GINS2 Arina Puzriakova gene: GINS2 was added
gene: GINS2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GINS2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GINS2 were set to 34353863
Phenotypes for gene: GINS2 were set to Meier-Gorlin syndrome with craniosynostosis
Review for gene: GINS2 was set to RED
Added comment: Sa et al., 2021 (PMID: 34353863) identified a patient presenting with prenatal and postnatal growth restriction, a craniofacial gestalt of MGORS and coronal craniosynostosis. A homozygous missense variant (c.341G>T, p.Arg114Leu) in GINS2 was identified that was heterozygous in both unaffected parents. Some supportive functional data included.

GINS2 is not currently not associated with any phenotype in OMIM or G2P and no additional cases have been identified to date.
Sources: Literature
Mendeliome v0.9012 NPR2 Zornitza Stark changed review comment from: Over 15 unrelated families; Biallelic (missense, nonsense, frameshift, splice) NPR2 variants; loss of function; multiple mouse models.

Disorder is characterised by severe dwarfism with shortening of the middle and distal segments of the limbs (disproportionate) with skeletal growth falling off sharply after birth.; to: Bi-allelic variants: Over 15 unrelated families; Biallelic (missense, nonsense, frameshift, splice) NPR2 variants; loss of function; multiple mouse models.

Disorder is characterised by severe dwarfism with shortening of the middle and distal segments of the limbs (disproportionate) with skeletal growth falling off sharply after birth.

Mono-allelic variants have been linked to both tall stature and short stature disorders. Multiple families.
Mendeliome v0.9012 NPR2 Zornitza Stark reviewed gene: NPR2: Rating: GREEN; Mode of pathogenicity: None; Publications: 31555216, 16384845, 15146390; Phenotypes: Acromesomelic dysplasia, Maroteaux type MIM# 602875, Short stature, disproportionate, Oval vertebral bodies in infancy, Progressive shortening of humerus, radius and ulna in first year, dwarfism, Prominent forehead; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.9009 SHOX2 Zornitza Stark gene: SHOX2 was added
gene: SHOX2 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: SHOX2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SHOX2 were set to 30443179
Phenotypes for gene: SHOX2 were set to Sinus Node Dysfunction; Atrial Fibrillation
Review for gene: SHOX2 was set to RED
Added comment: Single family reported with LoF in this gene and AF.
Sources: Expert Review
Mendeliome v0.8984 PNPLA6 Zornitza Stark changed review comment from: Ataxia is part of the phenotype.
Sources: Expert list; to: Variants in this gene are associated with multiple phenotypes.

Oliver-McFarlane syndrome is a rare congenital disorder characterized by trichomegaly, severe chorioretinal atrophy and multiple pituitary hormone deficiencies, including growth hormone. At least 10 families reported.

Laurence-Moon syndrome has a clinical presentation similar to that of Oliver-McFarlane syndrome, including chorioretinopathy and pituitary dysfunction, but with childhood onset of ataxia, peripheral neuropathy, and spastic paraplegia and without trichomegaly. Single family reported.
Mendeliome v0.8981 PI4KA Zornitza Stark changed review comment from: Single family reported, aware of at least one other yet to be published family identified internally.; to: PMG: Single family reported, aware of at least one other yet to be published family identified internally.
Mendeliome v0.8981 PI4KA Zornitza Stark edited their review of gene: PI4KA: Added comment: Neurodevelopmental syndrome with hypomyelinating leukodystrophy: 10 unrelated patients harbouring biallelic variants in PI4KA reported with a spectrum of severe global neurodevelopmental delay, hypomyelination, and developmental brain abnormalities, and pure spastic paraplegia. Some patients presented immunological deficits or genito-urinary abnormalities. Western blotting and immunofluorescence showed decreased PI4KA levels in the patients' fibroblasts. Immunofluorescence and targeted lipidomics indicated that PI4KA activity was diminished in fibroblasts and peripheral blood mononuclear cells.; Changed rating: GREEN; Changed publications: 25855803, 34415322; Changed phenotypes: Polymicrogyria, perisylvian, with cerebellar hypoplasia and arthrogryposis, MIM# 616531, Neurodevelopmental syndrome with hypomyelinating leukodystrophy
Mendeliome v0.8980 NIID Bryony Thompson STR: NIID was added
STR: NIID was added to Mendeliome. Sources: Literature
Mode of inheritance for STR: NIID was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for STR: NIID were set to 31178126; 31332381; 31819945; 33887199; 33943039; 32250060; 31332380; 32852534; 32989102; 34333668
Phenotypes for STR: NIID were set to Neuronal intranuclear inclusion disease MIM#603472; Oculopharyngodistal myopathy 3 MIM#619473; Tremor, hereditary essential, 6 MIM#618866
Review for STR: NIID was set to GREEN
STR: NIID was marked as clinically relevant
Added comment: NM_001364012.2:c.-164GGC[X]
Expanded repeat in NOTCH2NLC sequence is (GGC)9(GGA)2(GGC)2.
Large number of families and sporadic cases reported with expansions, with a range of neurodegenerative phenotypes, including: dementia, Parkinsonism/tremor, peripheral neuropathy, leukoencephalopathy, myopathy, motor neurone disease.
Normal repeat range: 4-40, 1 control had 61 repeats and may have been a presymptomatic carrier.
Intermediate range: 41-60 identified in Parkinson's disease
Pathogenic repeat range: >=60-520
Mechanism of disease is translation of repeat expansion into a toxic polyglycine protein, identified in both mouse models and tissue samples from affected individuals.
Sources: Literature
Mendeliome v0.8972 FAME1 Bryony Thompson STR: FAME1 was added
STR: FAME1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for STR: FAME1 was set to BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
Publications for STR: FAME1 were set to 30194086; 29507423
Phenotypes for STR: FAME1 were set to Epilepsy, familial adult myoclonic, 1 MIM#601068
Review for STR: FAME1 was set to GREEN
STR: FAME1 was marked as clinically relevant
Added comment: NC_000008.10:g.119379055_119379157TGAAA[X]TAAAA[X]
A heterozygous or homozygous 5-bp expanded TTTCA(n) insertion associated with an upstream 5-bp TTTTA(n) repeat expansion in a noncoding region within intron 4 of the SAMD12 gene, was identified in over 50 Chinese and Japanese families. 4 homozygous cases from 3 families had a more severe phenotype. The TTTTA repeat was present in controls, while the TTTCA was absent and only present in cases (100-3680 repeats reported). RNA toxicity is expected to be the mechanism of disease.
Sources: Expert list
Mendeliome v0.8969 MYO1H Zornitza Stark gene: MYO1H was added
gene: MYO1H was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MYO1H was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MYO1H were set to 28779001
Phenotypes for gene: MYO1H were set to Central hypoventilation syndrome, congenital, 2, and autonomic dysfunction, MIM#619482
Review for gene: MYO1H was set to RED
Added comment: Single family reported with three affected children, homozygous LoF variant.
Sources: Literature
Mendeliome v0.8956 RMRP Zornitza Stark changed review comment from: Over 60 pathogenic RMRP variants have been reported resulting in CHH phenotypes; multiple mouse models

Homozygous and Compound heterozygous (insertions, duplications and missense) variants have been reported resulting in loss of function.
*Founder variant g.70A>G (Amish and Finnish populations)

CHH individuals present with variable features that may include: shortened limbs, short stature, metaphysical dysplasia, fine, sparse and/or light-coloured hair, hematologic abnormalities and a spectrum of combined immunodeficiency.; to: Over 60 pathogenic RMRP variants have been reported resulting in CHH phenotypes; multiple mouse models

Homozygous and Compound heterozygous (insertions, duplications and missense) variants have been reported resulting in loss of function.
*Founder variant g.70A>G (Amish and Finnish populations)

CHH individuals present with variable features that may include: shortened limbs, short stature, metaphysical dysplasia, fine, sparse and/or light-coloured hair, hematologic abnormalities and a spectrum of combined immunodeficiency.

Anauxetic dysplasia 1, MIM# 607095 is a more severe phenotype, whereas Metaphyseal dysplasia without hypotrichosis, MIM# 250460 is milder.
Mendeliome v0.8932 GLI2 Zornitza Stark changed review comment from: Culler-Jones syndrome (CJS) is characterized by hypopituitarism, mainly growth hormone deficiency, and/or postaxial polydactyly. The phenotype is highly variable, and some individuals may have midline facial defects and developmental delay. The disorder shows incomplete penetrance and variable expressivity. Multiple families reported, short stature is a feature as a result of GH deficiency.

Variants in GLI2 are also associated with HPE, at least 5 families reported. Short stature is observed more rarely, as a result of midline defect.; to: Culler-Jones syndrome (CJS) is characterized by hypopituitarism, mainly growth hormone deficiency, and/or postaxial polydactyly. The phenotype is highly variable, and some individuals may have midline facial defects and developmental delay. The disorder shows incomplete penetrance and variable expressivity. Multiple families reported.

Variants in GLI2 are also associated with HPE, at least 5 families reported.
Mendeliome v0.8920 SCA12 Bryony Thompson STR: SCA12 was added
STR: SCA12 was added to Mendeliome. Sources: Expert list
Mode of inheritance for STR: SCA12 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for STR: SCA12 were set to 27864267; 33811808
Phenotypes for STR: SCA12 were set to Spinocerebellar ataxia 12 MIM#604326
Review for STR: SCA12 was set to GREEN
STR: SCA12 was marked as clinically relevant
Added comment: NM_181675.3:c.27CAG[X]
Uncertain if CAG repeat encodes polyglutamine or instead effects expression of specific splice variants of the encoded phosphatase
Normal: ≤32 repeats
Uncertain: ~40-50 repeats have been reported, 43 repeats is the lowest reported in an established affected individual in a family with SCA12
Established pathogenic (used as diagnostic cut-off): ≥51 repeats
Sources: Expert list
Mendeliome v0.8900 RNU4ATAC Zornitza Stark edited their review of gene: RNU4ATAC: Added comment: Lowry-Wood syndrome (LWS) is characterized by multiple epiphyseal dysplasia and microcephaly. Patients exhibit intrauterine growth retardation and short stature, as well as developmental delay and intellectual disability. Retinal degeneration has been reported in some patients.

Four unrelated families reported.

Note features between the three RNU4ATAC-related conditions overlap and they may not represent distinct disorders.; Changed rating: GREEN; Changed publications: 29265708, 12605445; Changed phenotypes: Lowry-Wood syndrome, MIM# 226960; Changed mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.8889 ZNF699 Zornitza Stark gene: ZNF699 was added
gene: ZNF699 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ZNF699 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ZNF699 were set to 33875846
Phenotypes for gene: ZNF699 were set to DEGCAGS syndrome, MIM# 619488
Review for gene: ZNF699 was set to GREEN
Added comment: DEGCAGS syndrome is a neurodevelopmental disorder characterized by global developmental delay, coarse and dysmorphic facial features, and poor growth and feeding apparent from infancy. Affected individuals have variable systemic manifestations often with significant structural defects of the cardiovascular, genitourinary, gastrointestinal, and/or skeletal systems. Additional features may include sensorineural hearing loss, hypotonia, anaemia or pancytopaenia, and immunodeficiency with recurrent infections.

12 unrelated families reported, 5 different homozygous frameshift variants.
Sources: Literature
Mendeliome v0.8881 TOR1AIP1 Zornitza Stark edited their review of gene: TOR1AIP1: Added comment: Gene is associated with multiple muscle phenotypes as already noted. Single family myasthenic syndrome and supportive mouse model data.; Changed rating: GREEN; Changed publications: 33215087; Changed phenotypes: Congenital myasthenic syndrome; Changed mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.8880 PAPPA2 Zornitza Stark gene: PAPPA2 was added
gene: PAPPA2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PAPPA2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PAPPA2 were set to 26902202; 34272725; 32739295
Phenotypes for gene: PAPPA2 were set to Short stature, Dauber-Argente type, MIM#619489
Review for gene: PAPPA2 was set to GREEN
Added comment: Short stature of the Dauber-Argente type (SSDA) is characterized by progressive postnatal growth failure, moderate microcephaly, thin long bones, and mildly decreased bone density. Patients have elevated circulating levels of total IGF1 due to impaired proteolysis of IGFBP3 and IGFBP5, resulting in reduced free IGF1.

7 individuals from 3 unrelated families reported, mouse model.
Sources: Literature
Mendeliome v0.8861 IGF2 Zornitza Stark changed review comment from: RSS phenotype.; to: Silver-Russell syndrome-3 (SRS3) is characterized by intrauterine growth retardation with relative macrocephaly, followed by feeding difficulties and postnatal growth restriction. Dysmorphic facial features include triangular face, prominent forehead, and low-set ears. Other variable features include limb defects, genitourinary and cardiovascular anomalies, hearing impairment, and developmental delay. Disruption of any gene in the HMGA2-PLAG1-IGF2 pathway results in a decrease in IGF2 expression and produces an SRS phenotype similar to that of patients carrying 11p15.5 epigenetic defects.

Begemann et al. (2015) performed exome sequencing in 4 affected people with severe growth restriction in one family, and identified a heterozygous nonsense mutation in the IGF2 gene that segregated fully with the disorder. Affected individuals inherited the mutation from their healthy fathers, and it originated from the healthy paternal grandmother. Clinical features occurred only in those who inherited the variant allele through paternal transmission, consistent with maternal imprinting of IGF2.

Many other cases reported since with de novo mutations in IGF2 present on the paternal allele.
Mendeliome v0.8853 PLAG1 Zornitza Stark edited their review of gene: PLAG1: Added comment: Additional families reported, upgrade to Green.

Silver-Russell syndrome-4 (SRS4) is characterised by intrauterine growth retardation followed by feeding difficulties and postnatal growth restriction. Dysmorphic facial features include triangular face and prominent forehead, and relative macrocephaly at birth may be observed. So far 4 families have been reported with some functional studies of the role of the gene in the growth pathway.

Abi Habib et al. (2018) reported 1 family (child, sister and mother) patient with Silver-Russell syndrome (with normal methylation on chromosomes 7, 11, and 14, and exclusion of maternal UPD and chromosomal rearrangements). Using WES they identified a heterozygous 1-bp deletion in the PLAG1 gene. The variant segregated with disease, and was not present in polymorphism databases or ExAC. They also reported another patient with a different heterozygous 1-bp deletion in the PLAG1 gene. This was not found in her unaffected twin brother, older brother, or parents. Experiments in Hep3b cells demonstrated that PLAG1 positively regulates expression of the IGF2 promoter P3, independently and via the HMGA2-PLAG1-IGF2 pathway. Disruption of any gene in the pathway results in a decrease in IGF2 expression and produces an SRS phenotype similar to that of patients carrying 11p15.5 epigenetic defects (SRS1; 180860), except for body asymmetry, which is not expected to occur since the molecular defects are present in all cells of the body, unlike the mosaic epigenetic changes at the 11p15.5 locus.

Inoue et al. (2020) reported 1 family with 2 affected people with Silver-Russell syndrome with a nonsense variant in the PLAG1 gene, which segregated with disease.

Vado et al. (2020) reported 1 family with multiple affected people with Silver-Russell syndrome with a frameshift variant in the PLAG1 gene, which segregated with disease.; Changed rating: GREEN; Changed publications: 28796236, 29913240, 33291420, 32546215
Mendeliome v0.8848 TCN2 Zornitza Stark changed review comment from: Well established gene-disease association.

26 pathogenic TCN2 variants have been reported in over 40 individuals; multiple mouse models

Homologous and Compound Heterozygous TCN2 variants (deletions or insertions, nonsense mutations, and point mutations) have been reported; deletions or insertions are the most common, causing frameshifts that result in protein truncation.

Individuals usually present within the first year of life with failure to thrive, diarrhoea, anaemia, pallor and agammaglobulinaemia.
Sources: Expert list; to: Well established gene-disease association.

26 pathogenic TCN2 variants have been reported in over 40 individuals; multiple mouse models

Homozygous and Compound Heterozygous TCN2 variants (deletions or insertions, nonsense mutations, and point mutations) have been reported; deletions or insertions are the most common, causing frameshifts that result in protein truncation.

Individuals usually present within the first year of life with failure to thrive, diarrhoea, anaemia, pallor and agammaglobulinaemia.
Sources: Expert list
Mendeliome v0.8847 TCN2 Zornitza Stark changed review comment from: Well established gene-disease association.
Sources: Expert list; to: Well established gene-disease association.

26 pathogenic TCN2 variants have been reported in over 40 individuals; multiple mouse models

Homologous and Compound Heterozygous TCN2 variants (deletions or insertions, nonsense mutations, and point mutations) have been reported; deletions or insertions are the most common, causing frameshifts that result in protein truncation.

Individuals usually present within the first year of life with failure to thrive, diarrhoea, anaemia, pallor and agammaglobulinaemia.
Sources: Expert list
Mendeliome v0.8835 ALS2 Teresa Zhao gene: ALS2 was added
gene: ALS2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ALS2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ALS2 were set to PMID: 30128655; 33409823
Phenotypes for gene: ALS2 were set to Infantile onset ascending spastic paralysis (MIM#607225); Juvenile amyotrophic lateral sclerosis 2 (MIM#205100); Juvenile primary lateral sclerosis (MIM#606353)
Review for gene: ALS2 was set to GREEN
Added comment: >50 variants reported in multiple individuals with Infantile onset ascending spastic paralysis, mostly originated from the Middle East and Mediterranean countries.
Sources: Literature
Mendeliome v0.8834 RNF220 Zornitza Stark gene: RNF220 was added
gene: RNF220 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RNF220 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RNF220 were set to 33964137; 10881263
Phenotypes for gene: RNF220 were set to Leukodystrophy; CNS hypomyelination; Ataxia; Intellectual disability; Sensorineural hearing impairment; Elevated hepatic transaminases; Hepatic fibrosis; Dilated cardiomyopathy; Spastic paraplegia; Dysarthria; Abnormality of the corpus callosum
Review for gene: RNF220 was set to GREEN
Added comment: Sferra et al (2021 - PMID: 33964137) provide extensive evidence that biallelic RNF220 mutations cause a disorder characterized by hypomyelinating leukodystrophy, ataxia (9/9 - onset 1-5y), borderline intellectual functioning (3/9) / intellectual disability (5/9 - in most cases mild), sensorineural deafness (9/9) with complete hearing loss in the first decade of life, hepatopathy (9/9) with associated periportal fibrosis, and dilated cardiomyopathy (9/9) which was fatal.

Other neurologic manifestations apart from ataxia incl. hyperreflexia (8/8), spastic paraplegia (9/9), dysarthria (9/9), peripheral neuropathy (4/9), seizures in one case (1/9). Upon brain MRI there was thin corpus callosum (9/9) or cerebellar atrophy in some (2/9).

The authors identified homozygosity for 2 recurrent missense RNF220 variants in affected members belonging to these 5 broad consanguineous pedigrees (7 families), namely NM_018150.4:c.1094G>A / p.Arg365Gly in 4 Roma families in the context of a shared haplotype (/founder effect) as well as c.1088G>A / p.Arg363Gly in a large pedigree from southern Italy initially reported by Leuzzi et al (2000 - PMID: 10881263).

Extensive segregation analyses were carried out including several affected and unaffected members.

RNF220 encodes ring finger protein 220, which functions as an E3 ubiquitin ligase. Previous studies have shown among others a role in modulation of Sonic hedgehog/GLI signaling and cerebellar development

Evidence for the role of RNF220 included relevant expression, localization within the cell, interaction partners (lamin B1, 20S proteasome), similarities with other laminopathies in terms of phenotype, etc :
*RNF220 has a relevant expression pattern in CNS (based on qRT-PCR analyses in human brain, cerebellum, cerebral cortex / mRNA levels in human fetal CNS with higher expression in cerebellum, spinal cord and cortex / previous GTEx data / protein levels in mouse CNS)
*The protein displays nuclear localization based on iPSC cells differentiated to motor neurons (also supported by data from the Human Protein Atlas). Transfection of COS-1 cells demonstrated localization primarily to the nucleus (as also previously demonstrated in HEK293T cells) in vesicle like structures with ASF2/SF2 colocalization suggesting enrichment in nuclear speckles. There was also partial co-distribution with the 20S proteasome. R363Q and R365Q additionally coalesced in the cytoplasm forming protein aggregates/inclusions.
*Immunofluorescence studies in patient fibroblasts also confirmed abnormal increase of the protein in the cytoplasm and increased fluorescence with the 20S proteasome.
*Proteomic identification of RNF220-interacting proteins in transfected HEK293T cells demonstrated enrichment for all members of the lamin protein family (incl . lamin B1, AC, B2).
*RNAi-mediated downregulation of RNF222 in Drosophila suggested altered subcellular localization and accumulation of the fly orthologue for human lamin B1.
*Immunoprecipitation of lamin B1 from the nuclear matrix of cerebellar cells suggested significant interaction of endogenous lamin B1 with RNF220, while transfection studies in HEK293T cells for wt/mt suggested reduced binding to endogenous lamin B1 for RNF220 mt compared to wt (more prominent for R365Q). RNF220 mutants also reduced ubiquitination of nuclear lamin B1 compared to wt.
*Patient fibroblasts immunostained with different nuclear envelope markers displayed abnormal nuclear shapes with multiple invaginations and lobulations, findings also observed in laminopathies.
Sources: Literature
Mendeliome v0.8829 ARF3 Zornitza Stark gene: ARF3 was added
gene: ARF3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ARF3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ARF3 were set to 34346499
Phenotypes for gene: ARF3 were set to Global developmental delay; Intellectual disability; Seizures; Morphological abnormality of the central nervous system
Review for gene: ARF3 was set to AMBER
Added comment: Sakamoto et al (2021 - PMID: 34346499) provide some evidence that monoallelic ARF3 pathogenic variants may be associated with a NDD with brain abnormality.

Using trio exome sequencing, the authors identified 2 individuals with NDD harboring de novo ARF3 variants, namely: NM_001659.2:c.200A>T / p.Asp67Val and c.296G>T / p.Arg99Leu.

Individual 1 (with Asp67Val / age : 4y10m), appeared to be more severelely affected with prenatal onset progressive microcephaly, severe global DD, epilepsy. Upon MRI there was cerebellar and brainstem atrophy. Individual 2 (Arg99Leu / 14y) had severe DD and ID (IQ of 23), epilepsy and upon MRI cerebellar hypoplasia. This subject did not exhibit microcephaly. Common facial features incl. broad nose, full cheeks, small philtrum, strabismus, thin upper lips and abnormal jaw. There was no evidence of systemic involvement in both.

ARF3 encodes ADP-ribosylation factor 3. Adenosine diphosphate ribosylation factors (ARFs) are key proteins for regulation of cargo sorting at the Golgi network, with ARF3 mainly working at the trans-Golgi network. ARFs belong to the small GTP-binding protein (G protein) superfamily. ARF3 switches between an active GTP-bound form and an inactive GDP-bound form, regulated by guanine nucleotide exchange factors (GEFs) and GTPase activating proteins (GAPs) respectively.

Members of the ARF superfamily regulate various aspects of membrane traffic, among others in neurons.

There are 5 homologs of ARF families, divided in 3 classes. ARF3 and ARF1 belong to class I. Monoallelic ARF1 mutations are associated with Periventricular nodular heterotopia 8 (MIM 618185).

In vivo, in vitro and in silico studies for the 2 variants suggest that both impair the Golgi transport system although each variant most likely exerts a different effect (gain-of-function for Arg99Leu vs loss-of-function/dominant-negative for Asp67Val).

This was also reflected in somewhat different phenotype of the subjects with the respective variants. Common features included severe DD, epilepsy and brain abnormalities although Asp67Val was associated with diffuse brain atrophy as well as congenital microcephaly and Arg99Leu with cerebellar hypoplasia.

Evidence to support the effect of each variant include:

Arg99Leu:
Had identical Golgi localization to that of wt
Had increased binding activity with GGA1, a protein recruited by the GTP-bound active form of ARF3 to the TGN membrane (supporting GoF)
In silico structural analysis suggested it may fail to stabilize the conformation of Asp26, resulting in impaired GTP hydrolysis (GoF).
In transgenic fruit flies, evaluation of the ARF3 variant toxicity using the rough eye phenotype this variant was associated with increased severity of the r-e phenotype similar to a previously studied GoF variant (Gln71Leu)

Asp67Val:
Did not show a Golgi-like pattern of localization (similar to Thr31Asn a previously studied dominant-negative variant)
Displayed decreased protein stability
In silico structural analysis suggested that Asp67Val may lead to compromised binding of GTP or GDP (suggestive of LoF)
In transgenic Drosophila eye-specific expression of Asp67Val (similar to Thr31Asn, a known dominant-negative variant) was lethal possibly due to high toxicity in very small amounts in tissues outside the eye.

There is no associated phenotype in OMIM, G2P or SysID.
Sources: Literature
Mendeliome v0.8823 SLC51A Zornitza Stark gene: SLC51A was added
gene: SLC51A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SLC51A was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLC51A were set to 31863603
Phenotypes for gene: SLC51A were set to Cholestasis, progressive familial intrahepatic, 6, MIM# 619484
Review for gene: SLC51A was set to RED
Added comment: Single individual reported with homozygous LoF variant, who presented with chronic malabsorptive diarrhoea, easy bruising, episodes of prolonged bleeding that required blood transfusions, and failure to thrive. Laboratory testing at age 2.5 years showed elevated liver transaminases and alkaline phosphatase. Liver biopsy demonstrated portal and periportal fibrosis and hepatocytes with foci of hepatocytic cholestasis. Analysis of bile acids in a blood spot were normal. Treatment with ursodiol and cholestyramine was started at 5 years of age. The coagulopathy resolved and his growth was adequate, but his liver transaminases, direct bilirubin, and GGT levels remained elevated.
Sources: Literature
Mendeliome v0.8807 VPS50 Zornitza Stark gene: VPS50 was added
gene: VPS50 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: VPS50 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: VPS50 were set to 34037727
Phenotypes for gene: VPS50 were set to Neonatal cholestatic liver disease; Failure to thrive; Profound global developmental delay; Postnatal microcephaly; Seizures; Abnormality of the corpus callosum
Review for gene: VPS50 was set to AMBER
Added comment: Schneeberger et al (2021 - PMID: 34037727) describe the phenotype of 2 unrelated individuals with biallelic VPS50 variants.

Common features included transient neonatal cholestasis, failure to thrive, severe DD with failure to achieve milestones (last examination at 2y and 2y2m respectively), postnatal microcephaly, seizures (onset at 6m and 25m) and irritability. There was corpus callosum hypoplasia on brain imaging.

Both individuals were homozygous for variants private to each family (no/not known consanguinity applying to each case). The first individual was homozygous for a splicing variant (NM_017667.4:c.1978-1G>T) and had a similarly unaffected sister deceased with no available DNA for testing. The other individual was homozygous for an in-frame deletion (c.1823_1825delCAA / p.(Thr608del)).

VPS50 encodes a critical component of the endosome-associated recycling protein (EARP) complex, which functions in recycling endocytic vesicles back to the plasma membrane [OMIM based on Schindler et al]. The complex contains VPS50, VPS51, VPS52, VPS53, the three latter also being components of GARP (Golgi-associated-retrograde protein) complex. GARP contains VPS54 instead of VPS50 and is required for trafficking of proteins to the trans-golgi network. Thus VPS50 (also named syndetin) and VPS54 function in the EARP and GARP complexes, to define directional movement of their endocytic vesicles [OMIM based on Schindler et al]. The VPS50 subunit is required for recycling of the transferrin receptor.

As discussed by Schneeberger et al (refs provided in text):
- VPS50 has a high expression in mouse and human brain as well as throughout mouse brain development.
- Mice deficient for Vps50 have not been reported. vps50 knockdown in zebrafish results in severe developmental defects of the body axis. Knockout mice for other proteins of the EARP/GARP complex (e.g. Vps52, 53 and 54) display embryonic lethality.

Studies performed by Schneeberger et al included:
- Transcript analysis for the 1st variant demonstrated skipping of ex21 (in patient derived fabriblasts) leading to an in frame deletion of 81 bp (r.1978_2058del) with predicted loss of 27 residues (p.Leu660_Leu686del).
- Similar VPS50 mRNA levels but significant reduction of protein levels (~5% and ~8% of controls) were observed in fibroblasts from patients 1 and 2. Additionally, significant reductions in the amounts of VPS52 and VPS53 protein levels were observed despite mRNA levels similar to controls. Overall, this suggested drastic reduction of functional EARP complex levels.
- Lysosomes appeared to have similar morphology, cellular distribution and likely unaffected function in patient fibroblasts.
- Transferrin receptor recycling was shown to be delayed in patient fibroblasts suggestive of compromise of endocytic-recycling function.

As the authors comment, the phenotype of both individuals with biallelic VPS50 variants overlaps with the corresponding phenotype reported in 15 subjects with biallelic VPS53 or VPS51 mutations notably, severe DD/ID, microcephaly and early onset epilepsy, CC anomalies. Overall, for this group, they propose the term "GARP and/or EARP deficiency disorders".

There is no VPS50-associated phenotype in OMIM or G2P. SysID includes VPS50 among the ID candidate genes.
Sources: Literature
Mendeliome v0.8786 KIAA0753 Zornitza Stark edited their review of gene: KIAA0753: Added comment: At least 5 families reported with a skeletal ciliopathy.; Changed publications: 29138412, 31816441, 33875766, 34016807; Changed phenotypes: Orofaciodigital syndrome XV 617127, Joubert syndrome, Short-rib thoracic dysplasia 21 without polydactyly, MIM# 619479
Mendeliome v0.8780 ITGB6 Zornitza Stark gene: ITGB6 was added
gene: ITGB6 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: ITGB6 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ITGB6 were set to 25431241; 26695873; 24305999; 24319098
Phenotypes for gene: ITGB6 were set to Amelogenesis imperfecta, type IH, MIM# 616221
Review for gene: ITGB6 was set to GREEN
Added comment: At least 3 unrelated families reported.
Sources: Expert Review
Mendeliome v0.8741 TCF7L2 Zornitza Stark changed review comment from: 2 reviews
Konstantinos Varvagiannis (Other)
I don't know

Dias et al (2021 - PMID: 34003604) describe the phenotype of 11 unrelated individuals harboring de novo missense/truncating TCF7L2 variants.

Features included DD in childhood (motor delay in 8/11, speech delay in 11/11), intellectual abilities ranging from average cognitive functioning to mild/moderate ID (the latter observed in 5/11), myopia (6/11) , dysmorphic features, variable orthopedic findings, and neuropsychiatric comorbidities incl. ASD (4/11) / ADHD (4/11).

One additional (12th) individual was excluded from this summary due to concurrent diagnosis of hypoxic-ischemic injury.

TCF7L2 on 10q25 encodes transcription factor 7-like 2, a high mobility group (HMG) box-containing transcription factor. As the authors discuss, the protein mediates canonical Wnt signaling. Secreted Wnt proteins lead to release of beta-catenin (CTNNB1) which after translocation to the nucleus acts with DNA-binding factors incl. TCF7L2 to turn on Wnt-responsive target genes. As a result TCF7L2 acts with beta-catenin as a switch for transcriptional regulation. Multiple alternative spliced TCF7L2 transcripts mediate it's function and specificity of transcriptional repertoire in a variety of tissues and contexts.

Dias et al provide references for its role in nervous system development incl. neurogenesis and thalamic development.

Variants in all cases occurred as de novo events with pLoF (stopgain, frameshift, splicing) ones predicted to lead to NMD. Missense variants occurred in all cases in or adjacent to the HMG box domain [aa 350-417]. 5 different missense variants affecting 3 residues were reported incl. c.1142A>C, c.1143C>G (leading to Asn381Thr/Lys respectively), c.1250G>T (Trp417Leu), c.1267T>C, c.1268A>G (leading to Tyr423His/Cys) [NM_001146274.1].

The gene has a pLI of 0.99-1 gnomAD/ExAC while there is a region of missense constraint encompassing the HMG box domain (the latter is an evolutionary conserved region mediating interactions with DNA).

No phenotypic differences were observed among individuals with pLoF and missense SNVs, and haploinsufficiency is presumed to be the underlying mechanism.

There are no variant or other studies performed, nor any animal models discussed.

In supplementary table 2, the authors provide several references to previous large scale sequencing studies with brief/incomplete descriptions of individuals de novo TCF7L2 variants and neurodevelopmental disorder (ID/ASD - Iossifov, De Rubeis, Lelieveld, McRae/DDD study and many other Refs).

Heterozygous TCF7L2 variants are thought to confer susceptibility to type diabetes mellitus (MIM 125853). Individuals reported by Dias et al did not have endocrine abnormalities including DM. A study by Roychowdhury et al (2021 - PMID: 34265237) suggests that regulatory variants in TCF7L2 are associated with thoracic aneurysm.

There is no other associated phenotype (notably NDD) in OMIM.
G2P includes TCF7L2 in its DD panel (Disease : TC7L2-related DD, Confidence:confirmed, Monoallelic, LoF).
SysID includes this gene within the autism candidate genes and current primary ID genes.; to: Dias et al (2021 - PMID: 34003604) describe the phenotype of 11 unrelated individuals harboring de novo missense/truncating TCF7L2 variants.

Features included DD in childhood (motor delay in 8/11, speech delay in 11/11), intellectual abilities ranging from average cognitive functioning to mild/moderate ID (the latter observed in 5/11), myopia (6/11) , dysmorphic features, variable orthopedic findings, and neuropsychiatric comorbidities incl. ASD (4/11) / ADHD (4/11).

One additional (12th) individual was excluded from this summary due to concurrent diagnosis of hypoxic-ischemic injury.

TCF7L2 on 10q25 encodes transcription factor 7-like 2, a high mobility group (HMG) box-containing transcription factor. As the authors discuss, the protein mediates canonical Wnt signaling. Secreted Wnt proteins lead to release of beta-catenin (CTNNB1) which after translocation to the nucleus acts with DNA-binding factors incl. TCF7L2 to turn on Wnt-responsive target genes. As a result TCF7L2 acts with beta-catenin as a switch for transcriptional regulation. Multiple alternative spliced TCF7L2 transcripts mediate it's function and specificity of transcriptional repertoire in a variety of tissues and contexts.

Dias et al provide references for its role in nervous system development incl. neurogenesis and thalamic development.

Variants in all cases occurred as de novo events with pLoF (stopgain, frameshift, splicing) ones predicted to lead to NMD. Missense variants occurred in all cases in or adjacent to the HMG box domain [aa 350-417]. 5 different missense variants affecting 3 residues were reported incl. c.1142A>C, c.1143C>G (leading to Asn381Thr/Lys respectively), c.1250G>T (Trp417Leu), c.1267T>C, c.1268A>G (leading to Tyr423His/Cys) [NM_001146274.1].

The gene has a pLI of 0.99-1 gnomAD/ExAC while there is a region of missense constraint encompassing the HMG box domain (the latter is an evolutionary conserved region mediating interactions with DNA).

No phenotypic differences were observed among individuals with pLoF and missense SNVs, and haploinsufficiency is presumed to be the underlying mechanism.

There are no variant or other studies performed, nor any animal models discussed.

In supplementary table 2, the authors provide several references to previous large scale sequencing studies with brief/incomplete descriptions of individuals de novo TCF7L2 variants and neurodevelopmental disorder (ID/ASD - Iossifov, De Rubeis, Lelieveld, McRae/DDD study and many other Refs).

Heterozygous TCF7L2 variants are thought to confer susceptibility to type diabetes mellitus (MIM 125853). Individuals reported by Dias et al did not have endocrine abnormalities including DM. A study by Roychowdhury et al (2021 - PMID: 34265237) suggests that regulatory variants in TCF7L2 are associated with thoracic aneurysm.

There is no other associated phenotype (notably NDD) in OMIM.
G2P includes TCF7L2 in its DD panel (Disease : TC7L2-related DD, Confidence:confirmed, Monoallelic, LoF).
SysID includes this gene within the autism candidate genes and current primary ID genes.
Mendeliome v0.8736 PIDD1 Zornitza Stark gene: PIDD1 was added
gene: PIDD1 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: PIDD1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PIDD1 were set to 28397838; 29302074; 33414379; 34163010
Phenotypes for gene: PIDD1 were set to Global developmental delay; Intellectual disability; Seizures; Autism; Behavioral abnormality; Psychosis; Pachygyria; Lissencephaly; Abnormality of the corpus callosum
Review for gene: PIDD1 was set to GREEN
Added comment: There is enough evidence to include this gene in the current panel with green rating.

Biallelic PIDD1 pathogenic variants have been reported in 26 individuals (11 families) with DD (all), variable degrees of ID (mild to severe), behavioral (eg. aggression/self-mutilation in several, ADHD) and/or psychiatric abnormalities (ASD, psychosis in 5 belonging to 3 families), well-controlled epilepsy is some (9 subjects from 6 families) and MRI abnormalities notably abnormal gyration pattern (pachygyria with predominant anterior gradient) as well as corpus callosum anomalies (commonly thinning) in several. Dysmorphic features have been reported in almost all, although there has been no specific feature suggested.

The first reports on the phenotype associated with biallelic PIDD1 mutations were made by Harripaul et al (2018 - PMID: 28397838) and Hu et al (2019 - PMID: 29302074) [both studies investigating large cohorts of individuals with ID from consanguineous families].

Sheikh et al (2021 - PMID: 33414379) provided details on the phenotype of 15 individuals from 5 families including those from the previous 2 reports and studied provided evidence on the role of PIDD1 and the effect of variants.

Zaki et al (2021 - PMID: 34163010) reported 11 additional individuals from 6 consanguineous families, summarize the features of all subjects published in the literature and review the neuroradiological features of the disorder.

PIDD1 encodes p53-induced death domain protein 1. The protein is part of the PIDDosome, a multiprotein complex also composed of the bipartite linker protein CRADD (also known as RAIDD) and the proform of caspase-2 and induces apoptosis in response to DNA damage.

There are 5 potential PIDD1 mRNA transcript variants with NM_145886.4 corresponding to the longest. Similar to the protein encoded by CRADD, PIDD1 contains a death domain (DD - aa 774-893). Constitutive post-translational processing gives PIDD1-N, PIDD1-C the latter further processed into PIDD1-CC (by auto-cleavage). Serine residues at pos. 446 and 588 are involved in this autoprocessing generating PIDD1-C (aa 446-910) and PIDD1-CC (aa 774-893). The latter is needed for caspase-2 activation.

Most (if not all) individuals belonged to consanguineous families of different origins and harbored pLoF or missense variants.

Variants reported so far include : c.2587C>T; p.Gln863* / c.1909C>T ; p.Arg637* / c.2443C>T / p.Arg815Trp / c.2275-1G>A which upon trap assay was shown to lead to skipping of ex15 with direct splicing form exon14 to the terminal exon 16 (resulting to p.Arg759Glyfs*1 with exlcusion of the entire DD) / c.2584C>T; p.Arg862Trp / c.1340G>A; p.Trp447* / c.2116_2120del; p.Val706His*, c.1564_1565del; p.Gly602fs*26

Evidence so far provided includes:
- Biallelic CRADD variants cause a NDD disorder and a highly similar gyration pattern.
- Confirmation of splicing effect (eg. for c.2275-1G>A premature stop in position 760) or poor expression (NM_145886.3:c.2587C>T; p.Gln863*). Arg815Trp did not affect autoprocessing or protein stability.
- Abnormal localization pattern, loss of interaction with CRADD and failure to activate caspase-2 (MDM2 cleavage assay) [p.Gln863* and Arg815Trp]
- Available expression data from GTEx (PIDD1 having broad expression in multiple tissues, but higher in brain cerebellum) as well as BrainSpan and PsychEncode studies suggesting high coexpression of PIDD1, CRADD and CASP2 in many regions in the developing human brain.
- Variants in other genes encoding proteins interacting with PIDD1 (MADD, FADD, DNAJ, etc) are associated with NDD.

Pidd-1 ko mice (ex3-15 removal) lack however CNS-related phenotypes. These show decreased anxiety but no motor anomalies. This has also been the case with Cradd-/- mice displaying no significant CNS phenotypes without lamination defects.

There is currently no associated phenotype in OMIM. PIDD1 is listed in the DD panel of G2P (PIDD1-related NDD / biallelic / loss of function / probable) . SysID includes PIDD1 among the current primary ID genes.
Sources: Expert Review
Mendeliome v0.8734 COLGALT1 Bryony Thompson gene: COLGALT1 was added
gene: COLGALT1 was added to Mendeliome. Sources: Other
Mode of inheritance for gene: COLGALT1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: COLGALT1 were set to 30412317; 33709034; 31759980
Phenotypes for gene: COLGALT1 were set to Brain small vessel disease 3 MIM#618360
Review for gene: COLGALT1 was set to GREEN
Added comment: 3 unrelated cases with biallelic variants, and supporting functional assays. The main features of the cases were porencephalic cysts, leukoencephalopathy, lacunar infarcts, cerebral microbleeds/haemorrhages and calcifications. A null mouse model was embryonic lethal, but had defects in the vascular networks of the embryos.
Sources: Other
Mendeliome v0.8730 ARIH1 Bryony Thompson gene: ARIH1 was added
gene: ARIH1 was added to Mendeliome. Sources: Other
Mode of inheritance for gene: ARIH1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ARIH1 were set to 29689197; 32102558
Phenotypes for gene: ARIH1 were set to Thoracic aortic aneurysm
Review for gene: ARIH1 was set to GREEN
Added comment: 3 unrelated families: A de novo case (R171*) with thoracic aortic aneurysm (TAA), and 2 siblings with TAA and a missense (E15Q). Another proband with cerebrovascular aneurysm (family history of TAA) and a missense variant (E44G). Supporting functional assays of the variants and a drosophila model.
Sources: Other
Mendeliome v0.8709 UBR1 Zornitza Stark changed review comment from: >50 unrelated families reported, reviewed in PMID: 24599544.

Common clinical features include poor growth, mental retardation, and variable dysmorphic features, including aplasia or hypoplasia of the nasal alae, abnormal hair patterns or scalp defects, and oligodontia. Other features include hypothyroidism, sensorineural hearing loss, imperforate anus, and pancreatic exocrine insufficiency.; to: >50 unrelated families reported, reviewed in PMID: 24599544.

Common clinical features include poor growth, intellectual disability, and variable dysmorphic features, including aplasia or hypoplasia of the nasal alae, abnormal hair patterns or scalp defects, and oligodontia. Other features include hypothyroidism, sensorineural hearing loss, imperforate anus, and pancreatic exocrine insufficiency.
Mendeliome v0.8703 ACTL6A Zornitza Stark changed review comment from: Two individuals from unrelated families reported with missense variants in this gene. Part of the BAF complex. Only one confirmed de novo.; to: Two individuals from unrelated families reported with missense variants in this gene, and one with a splice-site variant. Part of the BAF complex. Only one missense confirmed de novo, pathogenicity of the other variant uncertain.
PMID 31994175: fourth individual reported, recurrent de novo p.Arg377Trp
Mendeliome v0.8703 VAV1 Zornitza Stark gene: VAV1 was added
gene: VAV1 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: VAV1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: VAV1 were set to 20638113; 23058036
Phenotypes for gene: VAV1 were set to Common variable immnodeficiency
Review for gene: VAV1 was set to RED
Added comment: Reduced VAV1 expression has been reported in multiple T-CVID cases, however only one large deletion (exon 2-27) has been reported in a single case in a publication from 2012. The CNV was detected using real-time qPCR, but was not confirmed by an orthogonal method.
Sources: Expert Review
Mendeliome v0.8696 CD19 Zornitza Stark changed review comment from: More than 5 unrelated families reported.; to: More than 5 unrelated families reported. Clinical features include increased susceptibility to infection, hypogammaglobulinaemia, and normal numbers of mature B cells in blood, indicating a B-cell antibody-deficient immunodeficiency disorder.
Mendeliome v0.8686 OTX2 Zornitza Stark edited their review of gene: OTX2: Added comment: Three families reported with variants in OTX2 and otocyephaly-dysgnathia. Note variants were inherited in two of the families: in one family, from mother with microphthalmia (recognised OTX2 phenotype) and the other from an unaffected father. Lamb animal model reported.; Changed publications: 24167467, 25589041, 31969185; Changed phenotypes: Microphthalmia, syndromic 5, MIM# 610125, Pituitary hormone deficiency, combined, 6, MIM# 613986, Retinal dystrophy, early-onset, with or without pituitary dysfunction, MIM# 610125, Otocephaly-dysgnathia complex
Mendeliome v0.8669 MAST3 Zornitza Stark gene: MAST3 was added
gene: MAST3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MAST3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MAST3 were set to 34185323
Phenotypes for gene: MAST3 were set to Developmental and epileptic encephalopathy
Review for gene: MAST3 was set to GREEN
Added comment: Eleven individuals reported with de novo missense variants in the STK domain, including two recurrent variants p.G510S (n = 5) and p.G515S (n = 3). All 11 individuals had developmental and epileptic encephalopathy, with 8 having normal development prior to seizure onset at <2 years of age. All patients developed multiple seizure types, 9 of 11 patients had seizures triggered by fever and 9 of 11 patients had drug-resistant seizures. Limited functional data.
Sources: Literature
Mendeliome v0.8667 SF3B2 Zornitza Stark gene: SF3B2 was added
gene: SF3B2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SF3B2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SF3B2 were set to 34344887
Phenotypes for gene: SF3B2 were set to Craniofacial microsomia
Review for gene: SF3B2 was set to GREEN
Added comment: Twenty individuals from seven families reported with de novo or transmitted haploinsufficient variants in SF3B2. Affected individuals had mandibular hypoplasia, microtia, facial and preauricular tags, epibulbar dermoids, lateral oral clefts in addition to skeletal and cardiac abnormalities.

Targeted morpholino knockdown of SF3B2 in Xenopus resulted in disruption of cranial neural crest precursor formation and subsequent craniofacial cartilage defects, supporting a link between spliceosome mutations and impaired neural crest development in congenital craniofacial disease.

The families were ascertained from a cohort and the authors suggest that haploinsufficient variants in SF3B2 are the most prevalent genetic cause of CFM, explaining ~3% of sporadic and ~25% of familial cases.
Sources: Literature
Mendeliome v0.8657 ACAN Zornitza Stark edited their review of gene: ACAN: Added comment: Patients with SSOAD exhibit a broad phenotypic spectrum involving short stature associated with advanced bone maturation and early-onset osteoarthritis (OA), as well as mild dysmorphic features consisting of midface hypoplasia, brachydactyly, broad great toes, and lumbar lordosis. Other features include intervertebral disc disease and osteochondritis dissecans, which is characterized by separation of articular cartilage and subchondral bone from the articular surface. Phenotypes are highly variable even among patients within the same family, and there are no apparent genotype-phenotype correlations.

Well established gene-disease association, multiple families reported.

Note fewer families reported with bi-allelic variants in this gene and extreme short stature.; Changed publications: 24762113, 27870580, 19110214, 30124491, 28331218, 20137779; Changed phenotypes: Short stature and advanced bone age, with or without early-onset osteoarthritis and/or osteochondritis dissecans, OMIM# 165800, Spondyloepimetaphyseal dysplasia, aggrecan type 612813
Mendeliome v0.8644 MAP3K14 Zornitza Stark Phenotypes for gene: MAP3K14 were changed from to NIK deficiency; Poor T cell proliferation to antigen; Low B-cell numbers; Low NK number and function; recurrent bacterial/viral/ cryptosporidium infections; hypogammaglobulinaemia; decreased immunoglobulin levels
Mendeliome v0.8641 MAP3K14 Zornitza Stark reviewed gene: MAP3K14: Rating: GREEN; Mode of pathogenicity: None; Publications: 10319865, 11238593, 12352969; Phenotypes: NIK deficiency, Poor T cell proliferation to antigen, Low B-cell numbers, Low NK number and function, recurrent bacterial/viral/ cryptosporidium infections, hypogammaglobulinaemia, decreased immunoglobulin levels; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.8632 GIMAP5 Zornitza Stark gene: GIMAP5 was added
gene: GIMAP5 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: GIMAP5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GIMAP5 were set to 33956074
Phenotypes for gene: GIMAP5 were set to Portal hypertension, noncirrhotic, 2, MIM# 619463
Review for gene: GIMAP5 was set to GREEN
Added comment: 8 individuals from 4 unrelated families reported with onset of disease in the first decade of life. Clinical features included jaundice, hyperbilirubinaemia, pancytopaenia, including neutropaenia, lymphopaenia, and thrombocytopaenia, hepatosplenomegaly, and oesophageal varices. Some individuals had recurrent infections or features suggestive of an immunodeficiency. Liver biopsy was notable for the absence of cirrhosis and the presence of nodular regeneration.
Sources: Expert list
Mendeliome v0.8614 MALT1 Danielle Ariti edited their review of gene: MALT1: Added comment: 5 individuals from 3 unrelated families with immunodeficiency phenotype have reported variants in MALT1; two MALT1-knockout mouse models displaying primary T- and B-cell lymphocyte deficiency.

Variants identified were homozygous missense variants resulting in the alteration of highly conserved residue domains.

All individuals reported onset in infancy of recurrent bacterial/ fungal/ viral infections leading to bronchiectasis and poor T-cell proliferation.; Changed rating: GREEN
Mendeliome v0.8606 VRK1 Zornitza Stark changed review comment from: Complex phenotype with mixed peripheral and central neurological features. Two families reported where PCH was prominent and accompanied by ataxia. At least three families also reported where peripheral neuropathy dominated the clinical picture without PCH/ataxia.; to: Complex phenotype with mixed peripheral and central neurological features. Two families reported where PCH was prominent and accompanied by ataxia. At least three families also reported where peripheral neuropathy dominated the clinical picture without PCH/ataxia.

Further delineation of phenotype 2021:
PMID 34169149: expanding spectrum of neurologic disorders associated with VRK1. Two Hispanic individuals, one homozygous (R321C: VUS and LP/P in ClinVar) and one cHet (R321C+V236M, latter P and more recently VUS in ClinVar), with slowly progressive weakness and a clinical syndrome consistent with adult-onset spinal muscular atrophy WITHOUT pontocerebellar atrophy. No hom in gnomAD and both have been reported in cHet individuals with other features: R321C in association with adult-onset amyotrophic lateral sclerosis and V236M with rapidly progressive sensorimotor polyneuropathy and microcephaly. Authors suggest PMID 26583493 and 31837156 have similar reports. PMID 26583493 reports a 32yo Hispanic individual, cHet H119R+R321C, with early-onset amyotrophic lateral sclerosis, 5 years progressive weakness. PMID 31837156 reports two patients with adult-onset length-dependent motor neuropathy from unrelated consanguineous families of Moroccan Jewish descent, both hom for R387H.
Mendeliome v0.8601 CLCN3 Kristin Rigbye gene: CLCN3 was added
gene: CLCN3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CLCN3 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: CLCN3 were set to PMID: 34186028
Phenotypes for gene: CLCN3 were set to Neurodevelopmental disorder
Mode of pathogenicity for gene: CLCN3 was set to Other
Review for gene: CLCN3 was set to GREEN
Added comment: 11 individuals reported, 9 that carried 8 different rare heterozygous missense variants in CLCN3, and 2 siblings that were homozygous for an NMD-predicted frameshift variant likely abolishing ClC-3 function. All missense variants were confirmed to be de novo in eight individuals for whom parental data was available.

The 11 individuals in the cohort share clinical features of variable severity. All 11 have GDD or ID and dysmorphic features, and a majority has mood or behavioural disorders and structural brain abnormalities:
- Structural brain abnormalities on MRI (9/11) included partial or full agenesis of the corpus callosum (6/9), disorganized cerebellar folia (4/9), delayed myelination (3/9), decreased white matter volume (3/9), pons hypoplasia (3/9), and dysmorphic dentate nuclei (3/9). Six of those with brain abnormalities also presented with seizures.
- Nine have abnormal vision, including strabismus in four and inability to fix or follow in the two with homozygous loss-of-function variants.
- Hypotonia ranging from mild to severe was reported in 7 of the 11 individuals.
- Six have mood or behavioural disorders, particularly anxiety (3/6).
- Consistent dysmorphic facial features included microcephaly, prominent forehead, hypertelorism, down-slanting palpebral fissures, full cheeks, and micrognathia.

The severity of disease in the two siblings with homozygous disruption of ClC-3 is consistent with the drastic phenotype seen in Clcn3 KO mice. The disease was more severe in two siblings carrying homozygous loss-of-function variants with the presence of GDD, absent speech, seizures, and salt and pepper fundal pigmentation in both individuals, with one deceased at 14 months of age. The siblings also had significant neuroanatomical findings including diffusely decreased white matter volume, thin corpora callosa, small hippocampi, and disorganized cerebellar folia. Supporting biallelic inheritance for LoF variants, disruption of mouse Clcn3 results in drastic neurodegeneration with loss of the hippocampus a few months after birth and early retinal degeneration. Clcn3−/− mice display severe neurodegeneration, whereas heterozygous Clcn3+/− mice appear normal.

Patch-clamp studies were used to investigate four of the missense variants. These suggested a gain of function in two variants with increased current in HEK cells, however they also showed reduced rectification of voltage and a loss of transient current, plus decreased current amplitude, glycosylation and surface expression when expressed in oocytes, and were suspected to interfere with channel gating and a negative feedback mechanism. These effects were also shown to vary depending on pH levels. The current of the remaining two variants did not differ from WT. For heterozygous missense variants, the disruption induced may be at least partially conferred to mutant/WT homodimers and mutant/ClC-4 heterodimers.

Both loss and gain of function in this gene resulted in the same phenotype.
Sources: Literature
Mendeliome v0.8600 SEMA3D Ain Roesley edited their review of gene: SEMA3D: Added comment: Reported as a common susceptibility loci. No reported evidence for an association with Mendelian disease. Sema3d null heterozygote and homozygote mouse model had normal intestinal innervation.; Changed publications: 28334784, 25839327; Changed phenotypes: Hirschsprung disease
Mendeliome v0.8591 UBA2 Ain Roesley changed review comment from: 2x unrelated probands with isolated split hand malformation. fs variants - 1x de novo and 1x inherited from apparent unaffected mother (no radiographs of her hand available)

1x proband with unilateral split-hand malformation. Her daughter and grandson reported to have ectrofactyly but were unavailable for testing; to: 2x unrelated probands with isolated split hand malformation. fs variants - 1x de novo and 1x inherited from apparent unaffected mother (no radiographs of her hand available)

1x proband with unilateral split-hand malformation (missense). Her daughter and grandson reported to have ectrofactyly but were unavailable for testing
Mendeliome v0.8585 ANK2 Zornitza Stark gene: ANK2 was added
gene: ANK2 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: ANK2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ANK2 were set to 31983240; 22542183; 25363768; 27479843; 28554332; 30564305; 30755392; 31981491; 33004838; 33057194
Phenotypes for gene: ANK2 were set to Long QT syndrome 4, MIM# 600919; Complex neurodevelopmental disorder, MONDO:0100038
Review for gene: ANK2 was set to GREEN
Added comment: Link with cardiac abnormalities such as LongQT is DISPUTED. More than 10 unrelated individuals reported with neurodevelopmental phenotype, comprising autism/ID and de novo truncating variants, in addition to many other individuals as part of large NDD cohorts. This association has been assessed as DEFINITIVE by ClinGen.
Sources: Expert Review
Mendeliome v0.8573 ERBB3 Zornitza Stark changed review comment from: PMID 33497358: 6 individuals from 4 unrelated families reported with severe gut dysmotility and neurodevelopmental disorder. Note variants in this gene have also recently been linked to Hirschsprung's disease.; to: PMID 33497358: 6 individuals from 4 unrelated families reported with severe gut dysmotility and other features of neurocristinopathy including short-segment HSCR, progressive axonal peripheral neuropathy, dysautonomia, hypopigmentation, deafness. Note variants in this gene have also recently been linked to Hirschsprung's disease.
Mendeliome v0.8571 ERBB3 Zornitza Stark changed review comment from: Two families reported with contractures, positional approach used in gene discovery (2007). Another family reported more recently with a multi-system disorder but without contractures.; to: Lethal congenital contractual syndrome: Two families reported with contractures, positional approach used in gene discovery (2007). Another family reported more recently with a multi-system disorder but without contractures.
Mendeliome v0.8571 ERBB3 Zornitza Stark edited their review of gene: ERBB3: Added comment: PMID 33497358: 6 individuals from 4 unrelated families reported with severe gut dysmotility and neurodevelopmental disorder. Note variants in this gene have also recently been linked to Hirschsprung's disease.; Changed rating: GREEN; Changed publications: 17701904, 31752936, 33497358; Changed phenotypes: Lethal congenital contractural syndrome 2, MIM# 607598, Neurodevelopmental disorder with gut dysmotility
Mendeliome v0.8542 IKZF3 Zornitza Stark gene: IKZF3 was added
gene: IKZF3 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: IKZF3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: IKZF3 were set to 34155405
Phenotypes for gene: IKZF3 were set to Immunodeficiency 84, MIM# 619437
Review for gene: IKZF3 was set to AMBER
Added comment: Single family reported where heterozygous missense variant in this gene segregated with immunodeficiency in a mother and two children. Findings included low levels of B cells and impaired early B-cell development, variable T-cell abnormalities, hypogammaglobulinaemia, increased susceptibility to infection with Epstein-Barr virus (EBV). One individual developed lymphoma in adulthood. Mouse model recapitulated phenotype.
Sources: Expert Review
Mendeliome v0.8527 DNMT3B Zornitza Stark Phenotypes for gene: DNMT3B were changed from to Immunodeficiency-centromeric instability-facial anomalies syndrome 1 MIM# 242860; facial dysmorphic features; flat nasal bridge; developmental delay; macroglossia; bacterial/opportunistic infections (recurrent); malabsorption; cytopaenia; malignancies; multiradial configurations of chromosomes 1, 9, 16; Hypogammaglobulinaemia; agammaglobulinaemia; variable antibody deficiency; decreased immunoglobulin production; low T/B/NK cells
Mendeliome v0.8524 DNMT3B Zornitza Stark reviewed gene: DNMT3B: Rating: GREEN; Mode of pathogenicity: None; Publications: 20587527, 10555141, 17359920, 9718351, 10647011, 11102980, 12239717; Phenotypes: Immunodeficiency-centromeric instability-facial anomalies syndrome 1 MIM# 242860, facial dysmorphic features, flat nasal bridge, developmental delay, macroglossia, bacterial/opportunistic infections (recurrent), malabsorption, cytopaenia, malignancies, multiradial configurations of chromosomes 1, 9, 16, Hypogammaglobulinaemia, agammaglobulinaemia, variable antibody deficiency, decreased immunoglobulin production, low T/B/NK cells; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.8522 SYNCRIP Zornitza Stark gene: SYNCRIP was added
gene: SYNCRIP was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SYNCRIP was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SYNCRIP were set to 34157790; 30504930; 27479843; 23020937
Phenotypes for gene: SYNCRIP were set to Global developmental delay; Intellectual disability; Autism; Myoclonic atonic seizures; Abnormality of nervous system morphology
Review for gene: SYNCRIP was set to GREEN
Added comment: Semino et al (2021 - PMID: 34157790) provide clinical details on 3 unrelated individuals with de novo SYNCRIP variants and provide a review of 5 additional subjects previously identified within large cohorts in the literature and databases.

Features included DD, ID (7/7 for whom this information was available), ASD or autistic features (4/7). MRI abnormalities were observed in 3 (widening of CSF spaces, periventricular nodular heterotopia, prominent lat. ventricles). Epilepsy (myoclonic-astatic epilepsy / Doose syndrome) was reported for 2(/8) individuals.

The 3 patients here reported were identified following trio/singleton exome with Sanger confirmation of the variants and their de novo occurrence.

Variants are in almost all cases de novo (7/7 for whom this was known) and in 5/8 cases were pLoF, in 2/8 missense SNVs while a case from DECIPHER had a 77.92 kb whole gene deletion not involving other genes with unknown inheritance.

Overall the variants reported to date include [NM_006372.5]:
1 - c.858_859del p.(Gly287Leufs*5)
2 - c.854dupA p.(Asn285Lysfs*8)
3 - c.734T>C p.(Leu245Pro)
4 - chr6:85605276-85683190 deletion (GRCh38)
5 - c.629T>C p.(Phe210Ser)
6 - c.1573_1574delinsTT p.(Gln525Leu)
7 - c.1247_1250del p.(Arg416Lysfs*145)
8 - c.1518_1519insC p.(Ala507Argfs*14)

[P1-3: this report, P4: DECIPHER 254774, P5-6: Guo et al 2019 - PMID: 30504930, P7: Lelieveld et al 2016 - PMID: 27479843, P8: Rauch et al 2012 - PMID: 23020937 / all other Refs not here reviewed, clinical details summarized by Semino et al in table 1]

SYNCRIP (also known as HNRNPQ) encodes synaptotagmin‐binding cytoplasmic RNA‐interacting protein. As the authors note, this RNA-binding protein is involved in multiple pathways associated with neuronal/muscular developmental disorders. Several references are provided for its involvement in regulation of RNA metabolism, among others sequence recognition, pre-mRNA splicing, translation, transport and degradation.

Mutations in other RNA-interacting proteins and hnRNP members (e.g. HNRNPU, HNRNPD) are associated with NDD.

The missense variant (p.Leu245Pro) is within RRM2 one of the 3 RNA recognition motif (RRM) domains of the protein. These 3 domains, corresponding to the central part of the protein (aa 150-400), are relatively intolerant to variation (based on in silico predictions and/or variation in gnomAD). Leu245 localizes within an RNA binding pocket and in silico modeling suggests alteration of the tertiary structure and RNA-binding capacity of RRM2.

There are no additional studies performed.

Overall haploinsufficiency appears to be the underlying disease mechanism based on the truncating variants and the gene deletion. [pLI in gnomAD : 1, %HI : 2.48%]

Animal models are not discussed.

There is no associated phenotype in OMIM. This gene is included in the DD panel of G2P (monoallelic LoF variants / SYNCRIP-related developmental disorder). SysID also lists SYNCRIP within the current primary ID genes.
Sources: Literature
Mendeliome v0.8511 CAMK4 Zornitza Stark gene: CAMK4 was added
gene: CAMK4 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: CAMK4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CAMK4 were set to 30262571; 33098801; 33211350
Phenotypes for gene: CAMK4 were set to Intellectual disability; Autism; Behavioral abnormality; Abnormality of movement; Dystonia; Ataxia; Chorea; Myoclonus
Review for gene: CAMK4 was set to GREEN
Added comment: 3 publications by Zech et al (2018, 2020 - PMIDs : 30262571, 33098801, 33211350) provide clinical details on 3 individuals, each harboring a private de novo CAMK4 variant.

Overlapping features included DD, ID, behavoral issues, autism and abnormal hyperkinetic movements. Dystonia and chorea in all 3 appeared 3-20 years after initial symptoms.

CAMK4 encodes Calcium/Calmodulin-dependent protein kinase IV, an important mediator of calcium-mediated activity and dynamics, particularly in the brain. It is involved in neuronal transmission, synaptic plasticity, and neuronal gene expression required for brain development and neuronal homeostasis (summary by OMIM based on Zech et al, 2018).

The 473 aa enzyme has a protein kinase domain (aa 46-300) and a C-terminal autoregulatory domain (aa 305-341) the latter comprising an autoinhibitory domain (AID / aa 305-321) and a calmodulin-binding domain (CBD / aa 322-341) [NP_001735.1 / NM_001744.4 - also used below].

Variants in all 3 subjects were identified following trio-WES and were in all cases protein-truncating, mapping to exon 10 or exon 10-intron 10 junction, expected to escape NMD and cause selective abrogation of the autoinhibitory domain (aa 305-321) leading overall to gain-of-function.

Variation databases include pLoF CAMK4 variants albeit in all cases usptream or downstream of this region (pLI of this gene in gnomAD: 0.51). Variants leading to selective abrogation of the autoregulatory domain have not been reported.

Extensive evidence for the GoF effect of the variant has been provided in the first publication. Several previous studies have demonstrated that abrogation of the AID domain leads to consitutive activation (details below).

Mouse models - though corresponding to homozygous loss of function - support a role for CAMKIV in cognitive and motor symptoms. Null mice display tremulous and ataxic movements, deficiencies in balance and sensorimotor performance associated with reduced number of Purkinje neurons (Ribar et al 2000, PMID: 11069976 - not reviewed). Wei et al (2002, PMID: 12006982 - not reviewed) provided evidence for alteration in hippocampal physiology and memory function.

Heterozygous mutations in other genes for calcium/calmodulin-dependent protein kinases (CAMKs) e.g. CAMK2A/CAMK2B (encoding subunits of CAMKII) have been reported in individuals with ID.

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The proband in the first publication (PMID: 30262571) was a male with DD, ID, behavioral difficulties (ASD, autoaggression, stereotypies) and hyperkinetic movement disorder (myoclonus, chorea, ataxia) with severe generalized dystonia (onset at the age of 13y). Brain MRI demonstrated cerebellar atrophy.

Extensive work-up incl. karyotyping, CMA, DYT-TOR1A, THAP1, GCH1, SCA1/2/3/6/7/8/12/17, Friedreich's ataxia and FMR1 analysis was negative.F

Trio WES identified a dn splice site variant (c.981+1G>A) in the last exon-intron junction. RT-PCR followed by gel electrophoresis and Sanger in fibroblasts from an affected and control subject revealed that the proband had - as predicted by the type/location of the variant - in equal amount 2 cDNA products, a normal as well as a truncated one.

Sequencing of the shortest revealed utilization of a cryptic donor splice site upstream of the mutated donor leading to a 77bp out-of-frame deletion and introduction of a premature stop codon in the last codon (p.Lys303Serfs*28). Western blot in fibroblast cell lines revealed 2 bands corresponding to the normal protein product as well as to the p.Lys303Serfs*28 although expression of the latter was lower than that of the full length protein.

Several previous studies have shown that mutant CAMKIV species that lack the autoinhibitory domain are consitutively active (several Refs provided). Among others Chatila et al (1996, PMID: 8702940) studied an in vitro-engineered truncation mutant (Δ1-317 - truncation at position 317 of the protein) with functionally validated gain-of-function effect.

To prove enhanced activity of the splicing variant, Zech et al assessed phosphorylation of CREB (cyclic AMP-responsive element binding protein), a downstream substrate of CAMKIV. Immunobloting revealed significant increase of CREB phosphorylation in patient fibroblasts compared to controls. Overactivation of CAMKIV signaling was reversed when cells were treated with STO-609 an inhibitor of CAMKK, the ustream activator of CAMKIV.

Overall the authors demonstrated that loss of CAMKIV autoregulatory domain due to this splice variant had a gain-of-function effect.

----

Following trio-WES, Zech et al (2020 - PMID: 33098801) identified another relevant subject within cohort of 764 individuals with dystonia. This 12-y.o. male, harboring a different variant affecting the same donor site (c.981+1G>T), presented DD, ID, dystonia (onset at 3y) and additional movement disorders (myoclonus, ataxia) as well as similar behavior (ASD, autoaggression, stereotypies). [Details in suppl. p20].

----

Finally Zech et al (2020 - PMID: 33211350) reported on a 24-y.o. woman with adolescence onset choreodystonia. Other features included DD, moderate ID, absence seizures in infancy, OCD with anxiety and later diagnosis of ASD. Trio WES revealed a dn stopgain variant (c.940C>T; p.Gln314*).
Sources: Expert Review
Mendeliome v0.8499 CSF3R Zornitza Stark changed review comment from: More than 5 unrelated families reported.; to: More than 5 unrelated families reported. Some reports of progression to myelodysplasia.
Mendeliome v0.8487 COL25A1 Zornitza Stark edited their review of gene: COL25A1: Added comment: PMID: 2643702 - Patient: 273182 reported in DECIPHER, chet COL25A1 missense variants (listed as Likely Pathogenic). Phenotype includes Duane anomaly of the eye.

PMID: 31875546 - Mouse models, including Col25a1 KO and muscle-specific KO mice showed a significant reduction in the number of motor neurons in the cranial nerve nuclei, including the oculomotor, trochlear, trigeminal, and facial motor nuclei. Abnormalities in motor innervation of muscles of the head, such as the extraocular and masseter muscles, were also observed

PMID: 31875546 - Functional studies in human cell lines showed that the reported COL25A1 variants (G382R and G497X) impaired the interaction of COL25A1 with receptor protein tyrosine phosphatases, thereby reducing the ability to attract motor axons.; Changed rating: GREEN; Changed publications: 25500261, 26486031, 31875546, 26437029
Mendeliome v0.8485 STX3 Zornitza Stark changed review comment from: At least 5 unrelated families reported.; to: At least 5 unrelated families reported.

STX3 isoform B (STX3B) predominates in the retina, so mutations in the STX3 gene that affect both isoform A (STX3A) and STX3B cause both retinal and gastrointestinal disease (RDMVID), whereas mutations in STX3 affecting only the STX3A transcript cause only diarrhoea.
Mendeliome v0.8478 CD40LG Zornitza Stark Phenotypes for gene: CD40LG were changed from to Immunodeficiency, X-linked, with hyper-IgM MIM# 308230; Severe opportunistic infections (recurrent), idiopathic neutropaenia; dysgammaglobulinaemia hepatitis; cholangitis; cholangiocarcinoma; autoimmune blood cytopenias; haemolytic anaemia; thrombocytopaenia; diarrhoea; peripheral neuroectodermal tumours
Mendeliome v0.8468 CD40LG Danielle Ariti reviewed gene: CD40LG: Rating: GREEN; Mode of pathogenicity: None; Publications: 7679801, 7679206, 8094231, 9933119, 15358621, 15997875, 7678782, 7915248, 15367912, 7518839, 16311023, 9933119, 12402041, 7882172, 33475257; Phenotypes: mmunodeficiency, X-linked, with hyper-IgM MIM# 308230, Severe opportunistic infections (recurrent), idiopathic neutropaenia, dysgammaglobulinaemia hepatitis, cholangitis, cholangiocarcinoma, autoimmune blood cytopenias, haemolytic anaemia, thrombocytopaenia, diarrhoea, peripheral neuroectodermal tumours; Mode of inheritance: X-LINKED: hemizygous mutation in males, biallelic mutations in females
Mendeliome v0.8437 TULP1 Zornitza Stark commented on gene: TULP1: Several families also reported with LCA.
Mendeliome v0.8437 TOPORS Zornitza Stark Marked gene: TOPORS as ready
Mendeliome v0.8437 TOPORS Zornitza Stark Gene: topors has been classified as Green List (High Evidence).
Mendeliome v0.8437 TOPORS Zornitza Stark Phenotypes for gene: TOPORS were changed from to Retinitis pigmentosa 31 (MIM#609923)
Mendeliome v0.8436 TOPORS Zornitza Stark Publications for gene: TOPORS were set to
Mendeliome v0.8435 TOPORS Zornitza Stark Mode of inheritance for gene: TOPORS was changed from Unknown to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.8388 PCDHGC4 Zornitza Stark gene: PCDHGC4 was added
gene: PCDHGC4 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PCDHGC4 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PCDHGC4 were set to 34244665
Phenotypes for gene: PCDHGC4 were set to Intellectual disability; Seizures
Review for gene: PCDHGC4 was set to GREEN
Added comment: Eight variants reported in 19 members of nine unreleted families with a neurodevelopmental syndrome. Severe or moderate intellectual disabilty in eight families and seizures in four families. Four of the variants were LoF, in silico analysis of the remaining missense (n=3) and splice variants were predicted to be pathogenic.
Sources: Literature
Mendeliome v0.8376 GDF1 Zornitza Stark edited their review of gene: GDF1: Added comment: PMID: 32144877 - founder PTC in Arab population causing congenital heart detects AND right isomerism in 3 (unrelated?) families. Reviews other publications and reports additional chet (two PTC) or homozygous (missense) families with situs inversus and/or heart defects. No apparent genotype-phenotype correlation btw dominant and recessive disease.; Changed rating: GREEN; Changed publications: 32144877; Changed phenotypes: Congenital heart defects, multiple types, 6 613854, Right atrial isomerism (Ivemark) 208530; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.8367 DCDC2 Zornitza Stark changed review comment from: Only a single case with nephronophthisis, most reports are for cholangitis, though zebrafish model has renal cysts.; to: At least 5 families reported with cholangitis, and two with nephronophthisis, though zebrafish model has renal cysts.
Mendeliome v0.8361 CRB2 Zornitza Stark changed review comment from: More than 7 unrelated families reported, mouse model. Some have presented predominantly with proteinuria, and some more with a multi-system ciliopathy phenotype, and yet others with RP.; to: VM with renal disease: More than 7 unrelated families reported, mouse model. Some have presented predominantly with proteinuria, and some more with a multi-system ciliopathy phenotype, and yet others with RP.

FSGS: at least 4 families and animal model.
Mendeliome v0.8345 ARHGAP42 Zornitza Stark gene: ARHGAP42 was added
gene: ARHGAP42 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ARHGAP42 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ARHGAP42 were set to 34232960
Phenotypes for gene: ARHGAP42 were set to Interstitial lung disease; systemic hypertension; immunological abnormalities
Review for gene: ARHGAP42 was set to RED
Added comment: Single individual reported with homozygous LoF variant, chILD disorder, systemic hypertension, and immunological findings.
Sources: Literature
Mendeliome v0.8344 KIAA0556 Zornitza Stark changed review comment from: 5 individuals from two families reported, supportive mouse model.; to: 5 individuals from two families reported, supportive mouse model.

New HGNC approved name is KATNIP.
Mendeliome v0.8334 DYNC2H1 Zornitza Stark changed review comment from: More than 50 unrelated families reported.; to: More than 50 unrelated families reported with predominantly skeletal dysplasia.

Association with RP: - Five affected probands with homozygous and compound heterozygous missense and PTC variants - Associated with the NM_001080463.1 transcript (predominant isoform in retina from retinal organoid studies). PMID 32753734
Mendeliome v0.8333 KIF20A Zornitza Stark gene: KIF20A was added
gene: KIF20A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KIF20A was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: KIF20A were set to 29357359
Phenotypes for gene: KIF20A were set to Cardiomyopathy, familial restrictive, 6, MIM# 619433
Review for gene: KIF20A was set to GREEN
Added comment: Single family reported, two affected sibs, perinatal lethal cardiomyopathy, compound het variants in this gene.
Sources: Literature
Mendeliome v0.8326 AK2 Zornitza Stark changed review comment from: Well established gene-disease association.; to: Well established gene-disease association.

PMID: 19043417 (2009). 6 affected individuals from 5 unrelated families (3 of the families showed evidence of consanguinity). Homozygous (5 individuals) and compound heterozygous (1 individual) variants in the AK2 gene. Variants included missense, deletion and inframe indel, resulting in protein LoF. Available parents were sequenced and found heterozygous for the variants, supporting bi-allelic inheritance.

PMID: 19043416 (2009). 7 affected individuals from 6 unrelated families (2 separate consanguineous & 4 non-consanguineous families). Homozygous and compound heterozygous variants detected (missense, deletion, inframe indel), resulting in protein LoF. Reticular dysgenesis phenotype including Leukopenia, lymphopenia and agranulocytosis in all affected individuals and sensorineural deafness in 7 individuals.
Mendeliome v0.8318 ATG7 Zornitza Stark changed review comment from: 12 individuals from 5 unrelated families reported with a complex neurodevelopmental disorder and bi-allelic variants in this gene. Age range from 21 months to 71 years of age. Main clinical features included axial hypotonia, variably impaired intellectual development with poor or absent speech, and delayed walking (up to 7 years of age) or inability to walk. All had ataxia, often with tremor or dyskinesia, as well as dysarthria associated with cerebellar hypoplasia on brain imaging. Most had optic atrophy, and some had ptosis, chronic progressive external ophthalmoplegia, retinopathy, and strabismus; 1 had early-onset cataracts. The ore severely affected individuals had spastic paraplegia and inability to walk.

Functional data including mouse model.
Sources: Literature; to: 12 individuals from 5 unrelated families reported with a complex neurodevelopmental disorder and bi-allelic variants in this gene. Age range from 21 months to 71 years of age. Main clinical features included axial hypotonia, variably impaired intellectual development with poor or absent speech, and delayed walking (up to 7 years of age) or inability to walk. All had ataxia, often with tremor or dyskinesia, as well as dysarthria associated with cerebellar hypoplasia on brain imaging. Most had optic atrophy, and some had ptosis, chronic progressive external ophthalmoplegia, retinopathy, and strabismus; 1 had early-onset cataracts. The more severely affected individuals had spastic paraplegia and inability to walk.

Functional data including mouse model.
Sources: Literature
Mendeliome v0.8318 ATG7 Zornitza Stark changed review comment from: 12 individuals from 5 unrelated families reported with a complex neurodevelopmental disorder and bi-allelic variants in this gene. Age range from 21 months to 71 years of age. Main clinical features included axial hypotonia, variably impaired intellectual development with poor or absent speech, and delayed walking (up to 7 years of age) or inability to walk. All had ataxia, often with tremor or dyskinesia, as well as dysarthria associated with cerebellar hypoplasia on brain imaging. Most had optic atrophy, and some had ptosis, chronic progressive external ophthalmoplegia, retinopathy, and strabismus; 1 had early-onset cataracts. The ore severely affected individuals had spastic paraplegia and inability to walk.
Sources: Literature; to: 12 individuals from 5 unrelated families reported with a complex neurodevelopmental disorder and bi-allelic variants in this gene. Age range from 21 months to 71 years of age. Main clinical features included axial hypotonia, variably impaired intellectual development with poor or absent speech, and delayed walking (up to 7 years of age) or inability to walk. All had ataxia, often with tremor or dyskinesia, as well as dysarthria associated with cerebellar hypoplasia on brain imaging. Most had optic atrophy, and some had ptosis, chronic progressive external ophthalmoplegia, retinopathy, and strabismus; 1 had early-onset cataracts. The ore severely affected individuals had spastic paraplegia and inability to walk.

Functional data including mouse model.
Sources: Literature
Mendeliome v0.8317 ATG7 Zornitza Stark gene: ATG7 was added
gene: ATG7 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ATG7 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ATG7 were set to 34161705
Phenotypes for gene: ATG7 were set to Spinocerebellar ataxia, SCAR31, MIM#619422
Review for gene: ATG7 was set to GREEN
Added comment: 12 individuals from 5 unrelated families reported with a complex neurodevelopmental disorder and bi-allelic variants in this gene. Age range from 21 months to 71 years of age. Main clinical features included axial hypotonia, variably impaired intellectual development with poor or absent speech, and delayed walking (up to 7 years of age) or inability to walk. All had ataxia, often with tremor or dyskinesia, as well as dysarthria associated with cerebellar hypoplasia on brain imaging. Most had optic atrophy, and some had ptosis, chronic progressive external ophthalmoplegia, retinopathy, and strabismus; 1 had early-onset cataracts. The ore severely affected individuals had spastic paraplegia and inability to walk.
Sources: Literature
Mendeliome v0.8312 C2orf69 Zornitza Stark gene: C2orf69 was added
gene: C2orf69 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: C2orf69 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: C2orf69 were set to 34038740; 33945503
Phenotypes for gene: C2orf69 were set to Combined oxidative phosphorylation deficiency-53 (COXPD53), MIM#619423
Review for gene: C2orf69 was set to GREEN
Added comment: PMID 34038740: 20 affected children from 8 unrelated families reported, presenting with fatal syndrome consisting of severe autoinflammation and progredient leukoencephalopathy with recurrent seizures; 12 of these subjects, whose DNA was available, segregated homozygous loss-of-function C2orf69 variants. Endogenous C2ORF69 was found to be (1) loosely bound to mitochondria, (2) affects mitochondrial membrane potential and oxidative respiration in cultured neurons, and (3) controls the levels of the glycogen branching enzyme 1 (GBE1) consistent with a glycogen-storage-associated mitochondriopathy. Zebrafish model.

PMID 33945503: 8 individuals from 5 families reported with muscle hypotonia, developmental delay, progressive microcephaly, and brain MRI abnormalities. Age at onset ranged from birth to 6 months of age. Six patients had vision impairment, liver abnormalities, inflammation/inflammatory arthritis, and 5 patients had seizures.
Sources: Literature
Mendeliome v0.8306 NYNRIN Laura Raiti gene: NYNRIN was added
gene: NYNRIN was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NYNRIN was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NYNRIN were set to PMID: 30885698
Review for gene: NYNRIN was set to AMBER
Added comment: 3 individuals with Wilms Tumour reported (2 children from 1 family, the 3rd child from a second family).
Biallelic truncating mutations in NYNRIN in three children with Wilms Tumour from two families, each parent was heterozygous for one of the mutations.
One of the affected children had an inguinal hernia and another had epilepsy, hypothyroidism, and intellectual disability.
Sources: Literature
Mendeliome v0.8305 YARS Zornitza Stark changed review comment from: More than 5 unrelated families reported.; to: Mono-allelic disease: More than 5 unrelated families reported.
Mendeliome v0.8293 RAB3GAP1 Zornitza Stark changed review comment from: Rare autosomal recessive syndrome characterized by microcephaly, microphthalmia, microcornea, congenital cataracts, optic atrophy, cortical dysplasia, in particular corpus callosum hypoplasia, severe mental retardation, spastic diplegia, and hypogonadism. Multiple families reported.; to: Warburg micro: Rare autosomal recessive syndrome characterized by microcephaly, microphthalmia, microcornea, congenital cataracts, optic atrophy, cortical dysplasia, in particular corpus callosum hypoplasia, severe ID, spastic diplegia, and hypogonadism. Multiple families reported.

Martsolf syndrome is characterised by cataracts, mild to severe ID, dysmorphic features. Two families reported.
Mendeliome v0.8292 RING1 Eleanor Williams gene: RING1 was added
gene: RING1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RING1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: RING1 were set to 29386386
Phenotypes for gene: RING1 were set to microcephaly; intellectual disability
Review for gene: RING1 was set to RED
Added comment: Not associated with any phenotype in OMIM.

PMID: 29386386 - Pierce et al 2018 - report a 13 yo female with a de novo RING1 p.R95Q variant and syndromic neurodevelopmental disabilities. Early motor and language development were normal but were delayed after the first year of life. Cognitive testing showed a verbal IQ of 55 and a visual performance IQ of 63. Head circumference at birth was -4.9 SD, and -4.2 SD at age 13 which falls into the severe microcephaly category. C. elegans with either the missense mutation or complete knockout of spat-3 (the suggested RING1 ortholog) were defective in monoubiquitylation of histone H2A and had defects in neuronal migration and axon guidance.
Sources: Literature
Mendeliome v0.8292 RNF2 Eleanor Williams gene: RNF2 was added
gene: RNF2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RNF2 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: RNF2 were set to 33864376
Phenotypes for gene: RNF2 were set to epilepsy; intellectual disability; intrauterine growth retardation
Review for gene: RNF2 was set to AMBER
Added comment: Not associated with any phenotype in OMIM.

PMID:33864376 (Luo et al 2021) report 2 cases of children with de novo missense variants (p.R70H and p.S82R) in RNF2 and a phenotype of intrauterine growth retardation, severe intellectual disabilities, behavioral problems, seizures, feeding difficulties and dysmorphic features. Seizures started in infancy. Both variants are absent from gnomad. Functional studies in Drosophila showed that the disease-linked variants (p.R70H and p.S82R) behave as LoF alleles.
Sources: Literature
Mendeliome v0.8292 IRX5 Eleanor Williams changed review comment from: Associated with Hamamy syndrome #611174 (AR) in OMIM. Hamamy syndrome is characterised by craniofacial dysmorphism, hearing loss, skeletal anomalies, microcytic hypochromic anemia and congenital heart defects. Severe myopia has also been reported. Homozygous missense variants in IRX5 were reported in 2 families with this condition.

Cone dystrophy
-------------------
PMID: 33891002 - Khol et al 2021 - report 3 unrelated families with duplications of a region covering the genes IRX5 and IRX6 completely, and the proximal exons of MMP2 and cone dystrophy. They propose that overexpression of IRX5 and IRX6 may be the cause of the disease, and this is supported by expression analysis in patient-derived fibroblasts and zebrafish experiments.

Initial family is a large 5 generation German family with 14 members with autosomal dominant cone dystrophy in which a 600kb duplicated region covering IRX5/IRX6 and part of MMP2 was identified. 2 additional families of Chinese and Dutch descent with copy number gains of ~700 and ~850 kb, covering the same region were then identified. The smallest region of overlap is 608kb. In addition another family of German decent is reported with adCD and the same duplication as the first German family. It is not known if they are distantly related. Segregation analysis on available members of all families showed the duplication in affected members and not in unaffected.

They find that IRX5, IRX6 and MMP2 are expressed in human adult retina. Several lincRNA within the locus are also expressed. In patient derived fibroblasts IRX5 and IRX6 showed increased expression levels. Over expression of IRX5 and IRX6 results in impaired visual performance in zebrafish larvae.; to: Associated with Hamamy syndrome #611174 (AR) in OMIM. Hamamy syndrome is characterised by craniofacial dysmorphism, hearing loss, skeletal anomalies, microcytic hypochromic anemia and congenital heart defects. Severe myopia has also been reported. Homozygous missense variants in IRX5 were reported in 2 families with this condition (PMID: 22581230;17230486)

Duplication of gene
-------------------
PMID: 33891002 - Kohl et al 2021 - report 3 unrelated families with duplications of a region covering the genes IRX5 and IRX6 completely, and the proximal exons of MMP2 and cone dystrophy. They propose that overexpression of IRX5 and IRX6 may be the cause of the disease, and this is supported by expression analysis in patient-derived fibroblasts and zebrafish experiments.

Initial family is a large 5 generation German family with 14 members with autosomal dominant cone dystrophy in which a 600kb duplicated region covering IRX5/IRX6 and part of MMP2 was identified. 2 additional families of Chinese and Dutch descent with copy number gains of ~700 and ~850 kb, covering the same region were then identified. The smallest region of overlap is 608kb. In addition another family of German decent is reported with adCD and the same duplication as the first German family. It is not known if they are distantly related. Segregation analysis on available members of all families showed the duplication in affected members and not in unaffected.

They find that IRX5, IRX6 and MMP2 are expressed in human adult retina. Several lincRNA within the locus are also expressed. In patient derived fibroblasts IRX5 and IRX6 showed increased expression levels. Over expression of IRX5 and IRX6 results in impaired visual performance in zebrafish larvae.

Loss of function/gene
---------
PMID: 28041643 - Carss et al 2017 - screened a cohort of 722 individuals with inherited retinal disease using WES/WGS. 1 case reported with a biallelic deletion in IRX5 reported which leads to a frameshift ENST00000394636.4; c.1362_1366delTAAAG, p.Lys455ProfsTer19 in a patient with retinitis pigmentosa.

PMID: 32045705 - Apuzzo et al 2020 - report 2 cases of loss of a region in 16q12.1q21 which encompasses IRX5 and IRX6 and many other genes, which together with 3 other previous reports of deletions in this region help define a syndrome with features that include dysmorphic features, short stature, microcephaly, global developmental delay/intellectual disability, autism spectrum disorder (ASD) and ocular abnormalities (nystagmus and strabismus).
Mendeliome v0.8292 IRX6 Eleanor Williams changed review comment from: Not associated with any disorder in OMIM or Gene2Phenotype.

PMID: 33891002 - Khol et al 2021 - report 3 unrelated families with duplications of a region covering the genes IRX5 and IRX6 completely, and the proximal exons of MMP2 and cone dystrophy. They propose that overexpression of IRX5 and IRX6 may be the cause of the disease, and this is supported by expression analysis in patient-derived fibroblasts and zebrafish experiments.

Initial family is a large 5 generation German family with 14 members with autosomal dominant cone dystrophy in which a 600kb duplicated region covering IRX5/IRX6 and part of MMP2 was identified. 2 additional families of Chinese and Dutch descent with copy number gains of ~700 and ~850 kb, covering the same region were then identified. The smallest region of overlap is 608kb. In addition another family of German decent is reported with adCD and the same duplication as the first German family. It is not known if they are distantly related. Segregation analysis on available members of all families showed the duplication in affected members and not in unaffected.

They find that IRX5, IRX6 and MMP2 are expressed in human adult retina. Several lincRNA within the locus are also expressed. In patient derived fibroblasts IRX5 and IRX6 showed increased expression levels. Over expression of IRX5 and IRX6 results in impaired visual performance in zebrafish larvae.
Sources: Literature; to: Not associated with any disorder in OMIM or Gene2Phenotype.

PMID: 33891002 - Kohl et al 2021 - report 3 unrelated families with duplications of a region covering the genes IRX5 and IRX6 completely, and the proximal exons of MMP2 and cone dystrophy. They propose that overexpression of IRX5 and IRX6 may be the cause of the disease, and this is supported by expression analysis in patient-derived fibroblasts and zebrafish experiments.

Initial family is a large 5 generation German family with 14 members with autosomal dominant cone dystrophy in which a 600kb duplicated region covering IRX5/IRX6 and part of MMP2 was identified. 2 additional families of Chinese and Dutch descent with copy number gains of ~700 and ~850 kb, covering the same region were then identified. The smallest region of overlap is 608kb. In addition another family of German decent is reported with adCD and the same duplication as the first German family. It is not known if they are distantly related. Segregation analysis on available members of all families showed the duplication in affected members and not in unaffected.

They find that IRX5, IRX6 and MMP2 are expressed in human adult retina. Several lincRNA within the locus are also expressed. In patient derived fibroblasts IRX5 and IRX6 showed increased expression levels. Over expression of IRX5 and IRX6 results in impaired visual performance in zebrafish larvae.
Sources: Literature
Mendeliome v0.8289 HID1 Zornitza Stark gene: HID1 was added
gene: HID1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: HID1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: HID1 were set to 33999436
Phenotypes for gene: HID1 were set to Syndromic infantile encephalopathy; Hypopituitarism
Review for gene: HID1 was set to GREEN
Added comment: 7 individuals from 6 unrelated families reported. Clinical features included: hypopituitarism in combination with brain atrophy, thin corpus callosum, severe developmental delay, visual impairment, and epilepsy
Sources: Literature
Mendeliome v0.8277 MYT1 Zornitza Stark changed review comment from: Five unrelated individuals reported with variants in this gene and OAV spectrum.; to: Five unrelated individuals reported with variants in this gene and OAV spectrum.

Single individual reported with missense variant as part of an ID cohort, limited evidence for disease association.
Mendeliome v0.8269 ATP1A2 Zornitza Stark edited their review of gene: ATP1A2: Added comment: Association with alternating hemiplegia is well established.

PMID 31608932: Three individuals from two unrelated families reported with balleliic LoF variants in this gene and hydrops/congenital abnormalities. Mouse model is perinatal lethal.

PMID 33880529: six individuals with de novo missense variants reported and DD/EE/PMG.; Changed rating: GREEN; Changed publications: 31608932, 33880529; Changed phenotypes: Alternating hemiplegia of childhood 1, MIM#104290, Hydrops fetalis, microcephaly, arthrogryposis, extensive cortical malformations, Developmental and epileptic encephalopathy, polymicrogyria; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.8266 SAMD9L Zornitza Stark changed review comment from: At least three unrelated families reported, some postulate GoF whereas others postulate LoF as mechanism.; to: Ataxia-pancytopaenia: At least three unrelated families reported, some postulate GoF whereas others postulate LoF as mechanism.

ID: single individual reported, limited evidence of association.
Mendeliome v0.8264 IRX6 Eleanor Williams gene: IRX6 was added
gene: IRX6 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: IRX6 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: IRX6 were set to 33891002
Phenotypes for gene: IRX6 were set to cone dystrophy, MONDO:0000455
Mode of pathogenicity for gene: IRX6 was set to Other
Review for gene: IRX6 was set to GREEN
Added comment: Not associated with any disorder in OMIM or Gene2Phenotype.

PMID: 33891002 - Khol et al 2021 - report 3 unrelated families with duplications of a region covering the genes IRX5 and IRX6 completely, and the proximal exons of MMP2 and cone dystrophy. They propose that overexpression of IRX5 and IRX6 may be the cause of the disease, and this is supported by expression analysis in patient-derived fibroblasts and zebrafish experiments.

Initial family is a large 5 generation German family with 14 members with autosomal dominant cone dystrophy in which a 600kb duplicated region covering IRX5/IRX6 and part of MMP2 was identified. 2 additional families of Chinese and Dutch descent with copy number gains of ~700 and ~850 kb, covering the same region were then identified. The smallest region of overlap is 608kb. In addition another family of German decent is reported with adCD and the same duplication as the first German family. It is not known if they are distantly related. Segregation analysis on available members of all families showed the duplication in affected members and not in unaffected.

They find that IRX5, IRX6 and MMP2 are expressed in human adult retina. Several lincRNA within the locus are also expressed. In patient derived fibroblasts IRX5 and IRX6 showed increased expression levels. Over expression of IRX5 and IRX6 results in impaired visual performance in zebrafish larvae.
Sources: Literature
Mendeliome v0.8263 EPHA7 Zornitza Stark gene: EPHA7 was added
gene: EPHA7 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: EPHA7 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: EPHA7 were set to 34176129
Phenotypes for gene: EPHA7 were set to Intellectual disability
Review for gene: EPHA7 was set to AMBER
Added comment: Lévy et al (2021 - PMID: 34176129) provide evidence that haploinssuficiency of EPHA7 results in a neurodevelopmental disorder.

The authors report on 12 individuals belonging to 9 unrelated families, all harboring with 6q microdeletions spanning EPHA7.

Overlapping features included DD (13/13), ID (10/10 - mild in most cases, individuals with larger CNVs/additional variants had more severe phenotype), speech delay and behavioral disorders. Variable other features incl. hypotonia (70%), non specific facial features, eye abnormalities (40%) and cardiac defects (25%).

The CNVs ranged from 152 kb to few Mb in size but in 4 subjects (P5-8) were only minimal, involving only EPHA7.

9 out of 12 individuals had inherited the deletion (5 subjects paternal, 4 maternal), in 1 subject (P12) this occured de novo, while for 2 others inheritance was not specified. Most deletions were inherited from an unaffected parent (in 6/7 families), with unclear contribution in a further one.

The authors discuss on previous studies suggesting an important role for EphA7 in brain development (modulation of cell-cell adhesion and repulsion, regulation of dendrite morphogenesis in early corticogenesis, role in dendritic spine formation later in development. EphA7 has also been proposed to drive neuronal maturation and synaptic function).

Haploinsufficiency for other ephrins or ephrin receptors has been implicated in other NDDs.

Overall Lévy et al promote incomplete penetrance and variable expressivity with haploinsufficiency of this gene being a risk factor for NDD. [The gene has also an %HI of 2.76% and a pLI of 1].
Sources: Expert Review
Mendeliome v0.8258 GRK2 Zornitza Stark gene: GRK2 was added
gene: GRK2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GRK2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GRK2 were set to 33200460
Phenotypes for gene: GRK2 were set to Jeune asphyxiating thoracic dystrophy (ATD)
Review for gene: GRK2 was set to AMBER
Added comment: Two unrelated families reported and some functional data.
Sources: Literature
Mendeliome v0.8229 ATP9A Arina Puzriakova gene: ATP9A was added
gene: ATP9A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ATP9A was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ATP9A were set to http://dx.doi.org/10.1136/jmedgenet-2021-107843
Phenotypes for gene: ATP9A were set to Neurodevelopmental delay; Postnatal microcephaly; Failure to thrive; Gastrointestinal symptoms
Review for gene: ATP9A was set to AMBER
Added comment: Vogt et al. 2021 report on 3 individuals from 2 unrelated consanguineous families with different homozygous truncating variants in ATP9A, presenting with DD/ID of variable degree (2 mild, 1 severe), postnatal microcephaly (OFC range: −2.33 SD to −3.58 SD), failure to thrive, and gastrointestinal symptoms. Patient-derived fibroblasts showed reduced expression of ATP9A, and consistent with previous findings also overexpression of interacting partners, ARPC3 and SNX3.
Sources: Literature
Mendeliome v0.8229 ATP2C2 Eleanor Williams gene: ATP2C2 was added
gene: ATP2C2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ATP2C2 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: ATP2C2 were set to 33864365; 28440294
Phenotypes for gene: ATP2C2 were set to language impairment, HP:0002463
Review for gene: ATP2C2 was set to RED
Added comment: PMID: 33864365 - Martinelli et al 2021 - report a family with a missense variant NM_001286527.2:c.304G>A, p.(Val102Met) in ATP2C2 in a father and two siblings with specific language impairment. However two other affected siblings did not have this variant. This variant was also reported by Chen et al. They found that the variant had a higher frequency in language cases (1.8%, N = 360) compared with cohorts selected for dyslexia (0.8%, N = 520) and ADHD (0.7%, N = 150), which presented frequencies comparable to reference databases (0.9%, N = 24 046 gnomAD controls). They postulate that variant is not sufficient on its own to cause a disorder but is a susceptibility factor which increases the risk for language impairment.

PMID: 28440294 - Chen et al 2017 - report 2 probands with severe learning impairment, and missense variants in ATP2C2 (NM_001286527: c.G304A:p.V102M and NM_001291454:exon21: c.C1936T:p.R646W).
Sources: Literature
Mendeliome v0.8217 TCTN3 Zornitza Stark changed review comment from: Rare cause of JBS, I can only find two families reported plus one with OFD. Ataxia specifically described in one of the JBS individuals.; to: Three unrelated families reported with JBTS phenotype. Variants in this gene are associated with other ciliopathies as well (OFD and Mohr-Majewski).
Mendeliome v0.8202 TIE1 Zornitza Stark gene: TIE1 was added
gene: TIE1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TIE1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: TIE1 were set to 32947856; 24764452
Phenotypes for gene: TIE1 were set to Lymphatic malformation 11, MIM# 619401
Review for gene: TIE1 was set to AMBER
Added comment: Three families reported, supportive animal model, though variants are missense and present at a low frequency in gnomad.
Sources: Literature
Mendeliome v0.8201 HEATR5B Teresa Zhao gene: HEATR5B was added
gene: HEATR5B was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: HEATR5B was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: HEATR5B were set to PMID: 33824466
Phenotypes for gene: HEATR5B were set to pontocerebellar hypoplasia
Review for gene: HEATR5B was set to AMBER
Added comment: Four affected children from two families presenting with pontocerebellar hypoplasiawith neonatal seizures, severe ID and motor delay.

Two homozygous splice variants were reported ((c.5051–1G>A and c.5050+4A>G) in intron 31 of HEATR5B gene. Aberrant splicing was found in patient fibroblasts, which correlated
with reduced levels of HEATR5B protein.

Homozygous knockout mice were not viable.

*NOTE: gene (and alias) not found in OMIM
Sources: Literature
Mendeliome v0.8189 IFT80 Zornitza Stark commented on gene: IFT80: 5 unrelated families reported.
Mendeliome v0.8183 IFT43 Zornitza Stark changed review comment from: One family reported with cranioectodermal dysplasia, one with RP, and two with skeletal ciliopathy.; to: Two families reported with cranioectodermal dysplasia, one with RP, and two with skeletal ciliopathy.
Mendeliome v0.8165 RNU12 Bryony Thompson gene: RNU12 was added
gene: RNU12 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RNU12 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RNU12 were set to 34085356; 27863452
Phenotypes for gene: RNU12 were set to CDAGS syndrome MIM#603116; Craniosynostosis, Delayed closure of the fontanelles, cranial defects, clavicular hypoplasia, Anal and Genitourinary malformations, and Skin manifestations
Review for gene: RNU12 was set to GREEN
Added comment: 5 CDAGS syndrome families with biallelic variants all including NC_000022.10:g.43011402C>T and another variant on the second allele. Whole transcriptome sequencing analysis of patient lymphoblastoid cells identified differentially expressed genes, and differential alternative splicing analysis indicated there was an enrichment of alternative splicing events. Also, limited evidence for an association with cerebellar ataxia with a single large consanguineous family reported with a homozygous variant.
Sources: Literature
Mendeliome v0.8159 KCNJ16 Zornitza Stark gene: KCNJ16 was added
gene: KCNJ16 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KCNJ16 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: KCNJ16 were set to 33811157; 33840812
Phenotypes for gene: KCNJ16 were set to Renal tubulopathy; deafness
Review for gene: KCNJ16 was set to GREEN
Added comment: 8 unrelated families reported.
Sources: Literature
Mendeliome v0.8130 C5orf42 Zornitza Stark changed review comment from: Well established gene-disease association.

New gene name is CPLANE1.; to: Well established gene-disease associations. More than 10 families reported with each association.

New gene name is CPLANE1.
Mendeliome v0.8130 C21orf2 Zornitza Stark changed review comment from: Axial spondylometaphyseal dysplasia (SMDAX) is characterized by postnatal growth failure, including rhizomelic short stature in early childhood that evolves into short trunk in late childhood, and thoracic hypoplasia that may cause mild to moderate respiratory problems in the neonatal period and later susceptibility to airway infection. Impaired visual acuity comes to medical attention in early life and vision rapidly deteriorates. Retinal changes are diagnosed as retinitis pigmentosa or pigmentary retinal degeneration on funduscopic examination and as cone-rod dystrophy on ERG. Radiologic hallmarks include short ribs with flared and cupped anterior ends, mild spondylar dysplasia, lacy iliac crests, and metaphyseal irregularities essentially confined to the proximal femora. At least 7 unrelated families reported.

7 families also reported with isolated retinal dystrophy.; to: Axial spondylometaphyseal dysplasia (SMDAX) is characterized by postnatal growth failure, including rhizomelic short stature in early childhood that evolves into short trunk in late childhood, and thoracic hypoplasia that may cause mild to moderate respiratory problems in the neonatal period and later susceptibility to airway infection. Impaired visual acuity comes to medical attention in early life and vision rapidly deteriorates. Retinal changes are diagnosed as retinitis pigmentosa or pigmentary retinal degeneration on funduscopic examination and as cone-rod dystrophy on ERG. Radiologic hallmarks include short ribs with flared and cupped anterior ends, mild spondylar dysplasia, lacy iliac crests, and metaphyseal irregularities essentially confined to the proximal femora. At least 7 unrelated families reported.

7 families also reported with isolated retinal dystrophy.

New HGNC approved name is CFAP410.
Mendeliome v0.8086 SLIT3 Zornitza Stark gene: SLIT3 was added
gene: SLIT3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SLIT3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLIT3 were set to 33933663
Phenotypes for gene: SLIT3 were set to Congenital diaphragmatic hernia
Review for gene: SLIT3 was set to AMBER
Added comment: Two affected individuals, single family, supportive mouse model.
Sources: Literature
Mendeliome v0.8079 POPDC3 Zornitza Stark changed review comment from: 5 affected individuals from 3 unrelated families reported, supportive animal model data.
Sources: Literature; to: 5 affected individuals from 3 unrelated families reported, supportive animal model data. Presentation was between adolescence and 40s with proximal muscle weakness primarily affecting the lower limbs, resulting in increased falls and difficulty running. The disorder was slowly progressive, with later involvement of the upper limbs. MRI showed fatty replacement of the thigh muscles and medial gastrocnemius, with some paraspinal muscles also affected. Some patients had calf hypertrophy. Serum CK was markedly elevated.
Sources: Literature
Mendeliome v0.8078 POPDC3 Zornitza Stark gene: POPDC3 was added
gene: POPDC3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: POPDC3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: POPDC3 were set to 31610034
Phenotypes for gene: POPDC3 were set to Muscular dystrophy, limb-girdle, autosomal recessive 26, MIM# 618848
Review for gene: POPDC3 was set to GREEN
Added comment: 5 affected individuals from 3 unrelated families reported, supportive animal model data.
Sources: Literature
Mendeliome v0.8059 SPAG17 Zornitza Stark gene: SPAG17 was added
gene: SPAG17 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SPAG17 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SPAG17 were set to 28548327
Phenotypes for gene: SPAG17 were set to Spermatogenic failure 55, MIM#619380
Review for gene: SPAG17 was set to RED
Added comment: Single family reported with two affected brothers, homozygous missense variant.
Sources: Literature
Mendeliome v0.8058 CATIP Zornitza Stark gene: CATIP was added
gene: CATIP was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: CATIP was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CATIP were set to 32503832
Phenotypes for gene: CATIP were set to Spermatogenic failure 54, MIM# 619379
Review for gene: CATIP was set to RED
Added comment: Homozygous missense variant reported in a single consanguineous family with 4 affecteds. Limited functional data.
Sources: Expert list
Mendeliome v0.8011 ADA2 Zornitza Stark commented on gene: ADA2: Vasculitis, autoinflammation, immunodeficiency, and haematologic defects syndrome (VAIHS) is an autosomal recessive multisystem disorder with onset in childhood. The phenotype is highly variable, but most patients have features of a systemic vascular inflammatory disorder with skin ulceration and recurrent strokes affecting the small vessels of the brain resulting in neurologic dysfunction. Other features may include recurrent fever, elevated acute-phase proteins, myalgias, lesions resembling polyarteritis nodosa, and/or livedo racemosa or reticularis with an inflammatory vasculitis on biopsy. Some patients may have renal and/or gastrointestinal involvement, hypertension, aneurysms, or ischemic necrosis of the digits. Some affected individuals have immunodeficiency. At least 10 unrelated families reported, the p.Gly47Arg variant is a common founder variant in the Jewish population.
Mendeliome v0.8008 RFX4 Zornitza Stark gene: RFX4 was added
gene: RFX4 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RFX4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RFX4 were set to 33658631
Phenotypes for gene: RFX4 were set to ID, ASD, ADHD
Review for gene: RFX4 was set to GREEN
Added comment: Report of 38 individuals (from 33 unrelated families) with de novo or inherited loss of function variants in RFX3 (15 families), RFX4 (4 families), and RFX7 (14 families), identified through WES. Individuals share neurobehavioural features including ASD, intellectual disability, and/or ADHD; other frequent features include hypersensitivity to sensory stimuli and sleep problems. RFX3, RFX4, and RFX7 are strongly expressed in developing and adult human brain, and X-box binding motifs as well as RFX ChIP-seq peaks are enriched in the cis-regulatory regions of known ASD risk genes. These genes are potentially critical transcriptional regulators of neurobiological pathways associated with neurodevelopmental disease pathogenesis.
Sources: Literature
Mendeliome v0.8006 RFX3 Zornitza Stark gene: RFX3 was added
gene: RFX3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RFX3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RFX3 were set to 33658631
Phenotypes for gene: RFX3 were set to ID, ASD, ADHD
Review for gene: RFX3 was set to GREEN
Added comment: Report of 38 individuals (from 33 unrelated families) with de novo or inherited loss of function variants in RFX3 (15 families), RFX4 (4 families), and RFX7 (14 families), identified through WES. Individuals share neurobehavioural features including ASD, intellectual disability, and/or ADHD; other frequent features include hypersensitivity to sensory stimuli and sleep problems. RFX3, RFX4, and RFX7 are strongly expressed in developing and adult human brain, and X-box binding motifs as well as RFX ChIP-seq peaks are enriched in the cis-regulatory regions of known ASD risk genes. These genes are potentially critical transcriptional regulators of neurobiological pathways associated with neurodevelopmental disease pathogenesis.
Sources: Literature
Mendeliome v0.8004 RFX7 Zornitza Stark gene: RFX7 was added
gene: RFX7 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RFX7 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RFX7 were set to 33658631
Phenotypes for gene: RFX7 were set to ID, ASD, ADHD
Review for gene: RFX7 was set to GREEN
Added comment: Report of 38 individuals (from 33 unrelated families) with de novo or inherited loss of function variants in RFX3 (15 families), RFX4 (4 families), and RFX7 (14 families), identified through WES. Individuals share neurobehavioural features including ASD, intellectual disability, and/or ADHD; other frequent features include hypersensitivity to sensory stimuli and sleep problems. RFX3, RFX4, and RFX7 are strongly expressed in developing and adult human brain, and X-box binding motifs as well as RFX ChIP-seq peaks are enriched in the cis-regulatory regions of known ASD risk genes. These genes are potentially critical transcriptional regulators of neurobiological pathways associated with neurodevelopmental disease pathogenesis.
Sources: Literature
Mendeliome v0.7993 FARSA Zornitza Stark edited their review of gene: FARSA: Added comment: Schuch et al. (2021) report 3 unrelated individuals with bi-allelic variants in FARSA. Identified through WES and variants segregated with disease. Functional evidence was obtained with reduced FARS1 enzyme activity levels in fibroblasts or EBV-transformed lymphoblastoid cell lines (EBV-LCLs) of patients. Common to all was a chronic interstitial lung disease starting early in life and characterized by bilateral ground-glass opacification on HR-CT, and cholesterol pneumonitis in lung histology. Additional abnormalities in other organ systems include liver disease, neurological manifestations, and growth restriction.; Changed rating: GREEN; Changed publications: 31355908, 33598926; Changed phenotypes: Rajab interstitial lung disease with brain calcifications 2, MIM# 619013
Mendeliome v0.7985 NIID Bryony Thompson STR: NIID was added
STR: NIID was added to Mendeliome. Sources: Literature
Mode of inheritance for STR: NIID was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for STR: NIID were set to 31178126; 31332381; 31819945; 33887199; 33943039; 32250060; 31332380; 32852534; 32989102
Phenotypes for STR: NIID were set to Neuronal intranuclear inclusion disease MIM#603472; Tremor, hereditary essential, 6 MIM#618866
Review for STR: NIID was set to GREEN
STR: NIID was marked as clinically relevant
Added comment: NM_001364012.2:c.-164GGC[(66_517)]
Large number of families and sporadic cases reported with expansions, with a range of neurodegenerative phenotypes, including: dementia, Parkinsonism/tremor, peripheral neuropathy, leukoencephalopathy, myopathy, motor neurone disease.
Normal repeat range: 7-60
Pathogenic repeat range: >=61-500
Mechanism of disease is translation of repeat expansion into a toxic polyglycine protein, identified in both mouse models and tissue samples from affected individuals.
Sources: Literature
Mendeliome v0.7984 NOTCH2NL Bryony Thompson Added comment: Comment on list classification: STR is the only reported cause of disease for this gene. It has been added as an STR under NIID.
Mendeliome v0.7974 ZBTB42 Zornitza Stark gene: ZBTB42 was added
gene: ZBTB42 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: ZBTB42 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ZBTB42 were set to 25055871
Phenotypes for gene: ZBTB42 were set to Lethal congenital contracture syndrome 6, MIM# 616248
Review for gene: ZBTB42 was set to AMBER
Added comment: Homozygous missense variant reported in a family with three stillbirths and a phenotype consistent with LCCS. Supportive zebrafish model.
Sources: Expert Review
Mendeliome v0.7951 KIF17 Zornitza Stark gene: KIF17 was added
gene: KIF17 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KIF17 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: KIF17 were set to 33922911; 30458707; 28341548
Phenotypes for gene: KIF17 were set to Microphthalmia; Coloboma
Review for gene: KIF17 was set to RED
Added comment: Two siblings reported with MAC spectrum and homozygous missense variant in this gene. Some pre-existing data linking KIF17 to eye development.
Sources: Literature
Mendeliome v0.7949 SASH3 Zornitza Stark gene: SASH3 was added
gene: SASH3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SASH3 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: SASH3 were set to 33876203
Phenotypes for gene: SASH3 were set to Combined immunodeficiency; immune dysregulation
Review for gene: SASH3 was set to GREEN
Added comment: Four unrelated males reported presenting with combined immunodeficiency and immune dysregulation manifesting as recurrent sinopulmonary, cutaneous and mucosal infections, and refractory autoimmune cytopaenias. One missense variant, rest were nonsense.
Sources: Literature
Mendeliome v0.7946 FOXP1 Zornitza Stark changed review comment from: At least 5 unrelated individuals reported.; to: At least 30 unrelated individuals reported.
Mendeliome v0.7938 WDR91 Zornitza Stark commented on gene: WDR91: PMID 32732226: Novel candidate gene identified in a fetus with hygroma and hydrocephaly detected by fetal ultrasound. Autopsy showed multiple congenital abnormalities including hygroma, macrocephaly, abnormal ears, unilateral simian crease, hydrocephaly, cerebellar hypoplasia, and interventricular communication. A homozygous truncating variant was found by exome sequencing with concordant segregation among 4 affected fetus, 2 healthy sibs and both parents. Mouse models support role in brain development.
Mendeliome v0.7935 WRAP73 Zornitza Stark gene: WRAP73 was added
gene: WRAP73 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: WRAP73 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: WRAP73 were set to 33693649
Phenotypes for gene: WRAP73 were set to Microsperophakia
Review for gene: WRAP73 was set to AMBER
Added comment: Two Indian families with same homozygous missense, (p.Pro383Leu) and supportive functional data (zebrafish model).
Sources: Literature
Mendeliome v0.7932 EIF2AK2 Zornitza Stark edited their review of gene: EIF2AK2: Added comment: Four unrelated families reported with dystonia, recurrent variant, (p.Gly130Arg); Changed publications: 32197074, 33866603; Changed phenotypes: Intellectual disability, white matter abnormalities, ataxia, regression with febrile illness, Dystonia
Mendeliome v0.7912 HS3ST6 Zornitza Stark gene: HS3ST6 was added
gene: HS3ST6 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: HS3ST6 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: HS3ST6 were set to 33508266
Phenotypes for gene: HS3ST6 were set to Hereditary angioedema-8 (HAE8), MIM#619367
Review for gene: HS3ST6 was set to RED
Added comment: Three affected individuals from a single family reported, missense variant, no functional data.
Sources: Expert list
Mendeliome v0.7911 MYOF Zornitza Stark gene: MYOF was added
gene: MYOF was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MYOF was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MYOF were set to 32542751
Phenotypes for gene: MYOF were set to Hereditary angioedema-7 (HAE7), MIM#619366
Review for gene: MYOF was set to RED
Added comment: Three individuals from one family reported, onset of recurrent episodic swelling of the face, lips, and oral mucosa was in the second decade. Variant was also present in another unaffected family member. Some functional data.
Sources: Expert list
Mendeliome v0.7905 PLG Zornitza Stark changed review comment from: Association between mono-allelic variants and HAE: Over 20 families reported with a recurrent variant, p.Lys330Glu. Single family reported with a different variant. Note bi-allelic variants are associated with a separate disorder.

Bi-allelic variants and plasminogen deficiency: congenital plasminogen deficiency is characterised clinically by chronic mucosal pseudomembranous lesions consisting of subepithelial fibrin deposition and inflammation. The most common clinical manifestation is ligneous ('wood-like') conjunctivitis, a redness and subsequent formation of pseudomembranes mostly on the palpebral surfaces of the eye that progress to white, yellow-white, or red thick masses with a wood-like consistency that replace the normal mucosa. The lesions may be triggered by local injury and/or infection and often recur after local excision. Pseudomembranous lesions of other mucous membranes often occur in the mouth, nasopharynx, trachea, and female genital tract. Some affected children also have congenital occlusive hydrocephalus. At least 3 unrelated families reported.; to: Association between mono-allelic variants and HAE: Over 20 families reported with a recurrent variant, p.Lys330Glu. Single family reported with a different variant. Note bi-allelic variants are associated with a separate disorder.

Bi-allelic variants and plasminogen deficiency: congenital plasminogen deficiency is characterised clinically by chronic mucosal pseudomembranous lesions consisting of subepithelial fibrin deposition and inflammation. The most common clinical manifestation is ligneous ('wood-like') conjunctivitis, a redness and subsequent formation of pseudomembranes mostly on the palpebral surfaces of the eye that progress to white, yellow-white, or red thick masses with a wood-like consistency that replace the normal mucosa. The lesions may be triggered by local injury and/or infection and often recur after local excision. Pseudomembranous lesions of other mucous membranes often occur in the mouth, nasopharynx, trachea, and female genital tract. Some affected children also have congenital occlusive hydrocephalus. Over 20 unrelated families reported.
Mendeliome v0.7897 PRKD1 Zornitza Stark edited their review of gene: PRKD1: Added comment: Additional publications supporting association with bi-allelic disease:

PMID: 33919081: Three sisters with pulmonary stenosis, truncus arteriosis, and atrial septal defect were homozygous for c.265-1G>T. Their asymptomatic father was also homozygous, however he had two affected sisters (not genotyped), raising the possibility that PRKD1 may undergo autosomal recessive inheritance mode with gender limitation. PMID: 25713110: Two sisters with truncus arteriosis were homozygous for R618X.; Changed publications: 27479907, 32817298, 25713110, 33919081; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.7891 CADM3 Teresa Zhao gene: CADM3 was added
gene: CADM3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CADM3 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: CADM3 were set to PMID: 33889941
Phenotypes for gene: CADM3 were set to Charcot-Marie-Tooth disease
Review for gene: CADM3 was set to AMBER
Added comment: Three families reported with the same missense variant in CADM3 p.Tyr172Cys (one family de novo), with mice work to show reduced expression of the mutant protein in axons and abnormal axonal organization.
Sources: Literature
Mendeliome v0.7796 POU4F1 Bryony Thompson gene: POU4F1 was added
gene: POU4F1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: POU4F1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: POU4F1 were set to 33783914; 8876243
Phenotypes for gene: POU4F1 were set to Ataxia; intention tremor; hypotonia
Review for gene: POU4F1 was set to GREEN
Added comment: 4 unrelated probands presenting with paediatric onset ataxia, intention tremor, and hypotonia, with de novo loss of function variants, and supporting null mouse model.
Sources: Literature
Mendeliome v0.7767 FGB Zornitza Stark changed review comment from: Inherited disorders of fibrinogen affect either the quantity (afibrinogenaemia and hypofibrinogenaemia) or the quality (dysfibrinogenemia) of the circulating fibrinogen or both.

Afibrinogenaemia is characterized by the complete absence of immunoreactive fibrinogen. Bleeding due to afibrinogenaemia usually manifests in the neonatal period, with 85% of cases presenting umbilical cord bleeding, but a later age of onst is not unusual. Bleeding may occur in the skin, gastrointestinal tract, genitourinary tract, or the central nervous system, with intracranial haemorrhage being reported as the major cause of death. Patients are susceptible to spontaneous rupture of the spleen. First-trimester pregnancy loss is common. Both arterial and venous thromboembolic complications have been reported. Hypofibrinogenaemia is a milder disorder. Well established gene-disease association.; to: Inherited disorders of fibrinogen affect either the quantity (afibrinogenaemia and hypofibrinogenaemia) or the quality (dysfibrinogenemia) of the circulating fibrinogen or both.

Afibrinogenaemia is characterized by the complete absence of immunoreactive fibrinogen. Bleeding due to afibrinogenaemia usually manifests in the neonatal period, with 85% of cases presenting umbilical cord bleeding, but a later age of onst is not unusual. Bleeding may occur in the skin, gastrointestinal tract, genitourinary tract, or the central nervous system, with intracranial haemorrhage being reported as the major cause of death. Patients are susceptible to spontaneous rupture of the spleen. First-trimester pregnancy loss is common. Both arterial and venous thromboembolic complications have been reported. Hypofibrinogenaemia is a milder disorder.

Well established gene-disease association.
Mendeliome v0.7750 F10 Zornitza Stark commented on gene: F10: Factor X deficiency shows variable phenotypic severity. Affected individuals can manifest prolonged nasal and mucosal haemorrhage, menorrhagia, haematuria, and occasionally haemarthrosis. More than 20 unrelated families reported.
Mendeliome v0.7749 MCM7 Arina Puzriakova gene: MCM7 was added
gene: MCM7 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MCM7 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MCM7 were set to 33654309; 34059554
Phenotypes for gene: MCM7 were set to Meier-Gorlin syndrome; Microcephaly; Intellectual disability; Lipodystrophy; Adrenal insufficiency
Review for gene: MCM7 was set to AMBER
Added comment: MCM7 is a component of the MCM complex, a DNA helicase which is essential for DNA replication. Other components have been linked to disease with phenotypes including microcephaly and ID. MCM7 is not associated with any phenotype in OMIM or G2P at present.
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Currently there are 3 unrelated pedigrees in literature with different biallelic MCM7 variants associated with disease (see below). Although there is some functional data in support of variant-level deleteriousness or gene-level pathogenicity, the clinical gestalt is very different between the 3 families.

- PMID: 33654309 (2021) - Two unrelated individuals with different compound het variants in MCM7 but disparate clinical features. One patient had typical Meier-Gorlin syndrome (including growth retardation, microcephaly, congenital lung emphysema, absent breast development, microtia, facial dysmorphism) whereas the second case had a multi-system disorder with neonatal progeroid appearance, lipodystrophy and adrenal insufficiency. While small at birth, the second patient did not demonstrate reduced stature or microcephaly at age 14.5 years. Both individuals had normal neurodevelopment.
Functional studies using patient-derived fibroblasts demonstrate that the identified MCM7 variants were deleterious at either transcript or protein levels and through interfering with MCM complex formation, impact efficiency of S phase progression.

- PMID: 34059554 (2021) - Homozygous missense variant identified in three affected individuals from a consanguineous family with severe primary microcephaly, severe ID and behavioural abnormalities. Knockdown of Mcm7 in mouse neuroblastoma cells lead to reduced cell viability and proliferation with increased apoptosis, which were rescued by overexpression of wild-type but not mutant MCM7.
Sources: Literature
Mendeliome v0.7734 GEMIN5 Zornitza Stark gene: GEMIN5 was added
gene: GEMIN5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GEMIN5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GEMIN5 were set to 33963192
Phenotypes for gene: GEMIN5 were set to Neurodevelopmental disorder with cerebellar atrophy and motor dysfunction, MIM# 619333
Review for gene: GEMIN5 was set to GREEN
Added comment: Neurodevelopmental disorder with cerebellar atrophy and motor dysfunction (NEDCAM) is an autosomal recessive disorder characterized by global developmental delay with prominent motor abnormalities, mainly axial hypotonia, gait ataxia, and appendicular spasticity. Affected individuals have cognitive impairment and speech delay; brain imaging shows cerebellar atrophy. 30 individuals from 22 unrelated families reported.
Sources: Literature
Mendeliome v0.7726 KCNJ5 Zornitza Stark gene: KCNJ5 was added
gene: KCNJ5 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: KCNJ5 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: KCNJ5 were set to 21311022; 22203740; 24420545; 24574546
Phenotypes for gene: KCNJ5 were set to Hyperaldosteronism, familial, type III, MIM# 613677
Review for gene: KCNJ5 was set to GREEN
Added comment: Association with hyperaldosteronism: At least 5 unrelated families reported.

Association with Long QT: disputed.
Sources: Expert Review
Mendeliome v0.7700 UFSP2 Zornitza Stark changed review comment from: Ni et al (2021 - PMID: 33473208) describe the phenotype of 8 children (belonging to 4 families - 2 of which consanguineous) homozygous for a UFSP2 missense variant [NM_018359.5:c.344T>A; p.(Val115Glu)]. Likely founder variant in all.

Hip dysplasia: single 8 generation family reported.

Spondyloepimetaphyseal dysplasia, Di Rocco type: two families reported.; to: Ni et al (2021 - PMID: 33473208) describe the phenotype of 8 children (belonging to 4 families - 2 of which consanguineous) homozygous for a UFSP2 missense variant [NM_018359.5:c.344T>A; p.(Val115Glu)]. Likely founder variant in all. Additional cases identified through the 100,000 Genomes project.

Hip dysplasia: single 8 generation family reported.

Spondyloepimetaphyseal dysplasia, Di Rocco type: two families reported.
Mendeliome v0.7680 PARP6 Zornitza Stark gene: PARP6 was added
gene: PARP6 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PARP6 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PARP6 were set to Cells 2021, 10(6), 1289; https://doi.org/10.3390/cells10061289
Phenotypes for gene: PARP6 were set to Intellectual disability; Epilepsy; Microcephaly
Review for gene: PARP6 was set to GREEN
Added comment: Four unrelated individuals reported with de novo variants in this gene and a neurodevelopmental phenotype. Supportive functional data. One pair of siblings with a homozygous missense: limited evidence for bi-allelic variants causing disease.
Sources: Literature
Mendeliome v0.7670 UFSP2 Zornitza Stark changed review comment from: Ni et al (2021 - PMID: 33473208) describe the phenotype of 8 children (belonging to 4 families - 2 of which consanguineous) homozygous for a UFSP2 missense variant [NM_018359.5:c.344T>A; p.(Val115Glu)]. Likely founder variant in all.

Hip dysplasia: single 8 generation family reported.

Spondyloepimetaphyseal dysplasia, Di Rocco type: single 3-generation family reported.; to: Ni et al (2021 - PMID: 33473208) describe the phenotype of 8 children (belonging to 4 families - 2 of which consanguineous) homozygous for a UFSP2 missense variant [NM_018359.5:c.344T>A; p.(Val115Glu)]. Likely founder variant in all.

Hip dysplasia: single 8 generation family reported.

Spondyloepimetaphyseal dysplasia, Di Rocco type: two families reported.
Mendeliome v0.7637 THOC2 Paul De Fazio changed review comment from: Multiple (>10) individuals with neurodevelopmental phenotypes reported with missense, splice, and exon deletion variants. Variants are reported de novo or inherited from a carrier mother. Note that null (whole gene deletion or NMD) variants have not been reported in affected individuals. Arg77Cys appears to be recurrent (reported in multiple individuals).; to: Multiple (>10) males with neurodevelopmental phenotypes reported with missense, splice, and exon deletion variants. Variants are reported de novo or inherited from a carrier mother. Note that null (whole gene deletion or NMD) variants have not been reported in affected individuals. Arg77Cys appears to be recurrent (reported in multiple individuals).
Mendeliome v0.7630 CPE Zornitza Stark gene: CPE was added
gene: CPE was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: CPE was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CPE were set to 26120850; 32936766
Phenotypes for gene: CPE were set to Intellectual developmental disorder and hypogonadotropic hypogonadism, MIM# 619326
Review for gene: CPE was set to AMBER
Added comment: Four affected individuals from two unrelated families reported, bi-allelic LoF variants.
Sources: Expert Review
Mendeliome v0.7628 CELSR1 Zornitza Stark gene: CELSR1 was added
gene: CELSR1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CELSR1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CELSR1 were set to 31215153; 31403174; 26855770
Phenotypes for gene: CELSR1 were set to Lymphatic malformation 9, MIM# 619319
Review for gene: CELSR1 was set to GREEN
Added comment: 3 unrelated families reported.
Sources: Literature
Mendeliome v0.7621 SMARCA5 Zornitza Stark gene: SMARCA5 was added
gene: SMARCA5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SMARCA5 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SMARCA5 were set to 33980485
Phenotypes for gene: SMARCA5 were set to Neurodevelopmental disorder; microcephaly; dysmorphic features
Review for gene: SMARCA5 was set to GREEN
Added comment: 12 individuals reported with either de novo or appropriately segregating variants in this gene and mild developmental delay, frequent postnatal short stature and microcephaly, and recurrent dysmorphic features. Functional data supports gene-disease association.
Sources: Literature
Mendeliome v0.7615 SEPT9 Zornitza Stark edited their review of gene: SEPT9: Added comment: Hereditary neuralgic amyotrophy (HNA) is an autosomal dominant form of recurrent focal neuropathy characterized clinically by acute, recurrent episodes of brachial plexus neuropathy with muscle weakness and atrophy preceded by severe pain in the affected arm. Multiple founder variants, including p.Arg88Trp. Also note intragenic duplication and 5'UTR variant reported, which may not be detectable by all NGS assays.; Changed publications: 16186812, 19451530, 19939853, 19139049
Mendeliome v0.7599 ZPR1 Zornitza Stark gene: ZPR1 was added
gene: ZPR1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ZPR1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ZPR1 were set to 29851065
Phenotypes for gene: ZPR1 were set to Growth restriction, hypoplastic kidneys, alpecia, and distinctive facies 619321
Review for gene: ZPR1 was set to RED
Added comment: 3 families reported with growth restriction, hypoplastic kidneys, alopecia, and distinctive facies (GKAF). All were Hispanic families from the middle Rio Grande Valley. Homozygous missense identified in one family, p. Ile196Thr. Others unavailable for testing, founder effect postulated.
Sources: Literature
Mendeliome v0.7567 SPEG Zornitza Stark edited their review of gene: SPEG: Added comment: PMIDs 32925938;33794647: Reports of early onset isolated DCM, as well as cardiomyopathy in the context of skeletal myopathy.; Changed publications: 25087613, 31625632, 30412272, 30157964, 29614691, 29474540, 28624463, 26578207, 25087613, 32925938, 33794647; Changed phenotypes: Centronuclear myopathy 5, MIM# 615959, Dilated cardiomyopathy
Mendeliome v0.7567 GREB1L Zornitza Stark changed review comment from: At least 16 families described, and mouse model supports gene-disease association.; to: CAKUT: At least 16 families described, and mouse model supports gene-disease association.
Mendeliome v0.7561 SLC25A46 Zornitza Stark changed review comment from: Hereditary motor and sensory neuropathy type VIB is an autosomal recessive complex progressive neurologic disorder characterized mainly by early-onset optic atrophy resulting in progressive visual loss and peripheral axonal sensorimotor neuropathy with highly variable age at onset and severity. Affected individuals also have cerebellar or pontocerebellar atrophy on brain imaging, and they show abnormal movements, such as ataxia, dysmetria, and myoclonus.

At least 10 unrelated families reported, supportive functional data.; to: Hereditary motor and sensory neuropathy type VIB is an autosomal recessive complex progressive neurologic disorder characterized mainly by early-onset optic atrophy resulting in progressive visual loss and peripheral axonal sensorimotor neuropathy with highly variable age at onset and severity. Affected individuals also have cerebellar or pontocerebellar atrophy on brain imaging, and they show abnormal movements, such as ataxia, dysmetria, and myoclonus. New disease entity added by OMIM in 2021 to reflect this more severe end of the spectrum.

At least 10 unrelated families reported, supportive functional data.
Mendeliome v0.7557 SPI1 Zornitza Stark gene: SPI1 was added
gene: SPI1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SPI1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SPI1 were set to 33951726
Phenotypes for gene: SPI1 were set to Agammaglobulinaemia
Review for gene: SPI1 was set to GREEN
Added comment: Six unrelated individuals reported, four with de novo variants, two unphased. Some functional data.
Sources: Literature
Mendeliome v0.7549 TMEM222 Zornitza Stark gene: TMEM222 was added
gene: TMEM222 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TMEM222 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TMEM222 were set to 33824500
Phenotypes for gene: TMEM222 were set to Intellectual disability; Epilepsy; Microcephaly
Review for gene: TMEM222 was set to GREEN
Added comment: Polla et al (2021 - PMID: 33824500) report 17 individuals from 9 unrelated families, with biallelic TMEM222 pathogenic variants. The phenotype included motor, speech delay and moderate to severe ID (as universal features). Other manifestations included hypotonia (10/15), broad gait (5/12), seizures (7/17 - belonging to 6/9 families), MRI abnormalities (5/8). Variable behavioral abnormalities were observed (aggressive behavior, shy character, stereotypic movements etc). Abnormal OFC was a feature in several with microcephaly in 7 subjects from 4 families (measurements not available for all 17). Nonspecific facial features were reported in 10/17.
Sources: Literature
Mendeliome v0.7547 CHD5 Zornitza Stark gene: CHD5 was added
gene: CHD5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CHD5 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CHD5 were set to 33944996
Phenotypes for gene: CHD5 were set to Intellectual disability; Epilepsy
Review for gene: CHD5 was set to GREEN
Added comment: 16 unrelated individuals reported with language deficits (81%), behavioral symptoms (69%), intellectual disability (64%), epilepsy (62%), and motor delay (56%).
Sources: Literature
Mendeliome v0.7541 FBXO31 Zornitza Stark changed review comment from: Single consanguineous family reported with homozygous truncating variant, limited functional evidence.
Sources: Expert list; to: AR intellectual disability: Single consanguineous family reported with homozygous truncating variant, limited functional evidence.
Sources: Expert list
Mendeliome v0.7540 RCAN1 Zornitza Stark gene: RCAN1 was added
gene: RCAN1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RCAN1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RCAN1 were set to 33863784
Phenotypes for gene: RCAN1 were set to FSGS; proteinuria
Review for gene: RCAN1 was set to AMBER
Added comment: Two families reported, some functional data.
Sources: Literature
Mendeliome v0.7537 ZNFX1 Zornitza Stark gene: ZNFX1 was added
gene: ZNFX1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ZNFX1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ZNFX1 were set to 33872655; 33876776
Phenotypes for gene: ZNFX1 were set to Multisystem inflammation; susceptibility to viral infections
Review for gene: ZNFX1 was set to GREEN
Added comment: 15 individuals from 8 families reported with multi-system inflammation and susceptibility to viral infections.

In addition, four indviduals from two unrelated kindreds reported with intermittent monocytosis and mycobacterial disease, including bacillus Calmette-Guérin-osis and disseminated tuberculosis.
Sources: Literature
Mendeliome v0.7535 STXBP3 Zornitza Stark gene: STXBP3 was added
gene: STXBP3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: STXBP3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: STXBP3 were set to 33891011
Phenotypes for gene: STXBP3 were set to Very Early Onset Inflammatory Bowel Disease; Bilateral Sensorineural Hearing Loss; Immune Dysregulation
Review for gene: STXBP3 was set to GREEN
Added comment: 10 individuals from 5 families reported.
Sources: Literature
Mendeliome v0.7511 LSM7 Bryony Thompson gene: LSM7 was added
gene: LSM7 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: LSM7 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: LSM7 were set to DOI:https://doi.org/10.1016/j.xhgg.2021.100034
Phenotypes for gene: LSM7 were set to Leukodystrophy; foetal death
Review for gene: LSM7 was set to AMBER
Added comment: Homozygous variant (p.Asp41Asn) identified in a child with leukodystrophy and a homozygous variant (p.Arg69Pro) identified in an individual that died in utero. In vitro and in vivo (zebrafish) assays supporting pathogenicity of the 2 variants.
Sources: Literature
Mendeliome v0.7509 PTPN4 Bryony Thompson gene: PTPN4 was added
gene: PTPN4 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PTPN4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PTPN4 were set to 17953619; 25424712; 30238967; DOI: https://doi.org/10.1016/j.xhgg.2021.100033
Phenotypes for gene: PTPN4 were set to Intellectual disability; developmental delay
Review for gene: PTPN4 was set to GREEN
Added comment: >3 unrelated probands and supporting mouse model
PMID: 17953619 - knockout mouse model has impaired motor learning and cerebellar synaptic plasticity
PMID: 25424712 - twins with a de novo whole gene deletion and a Rett-like neurodevelopmental disorder
PMID: 30238967 - mosaic de novo variant (p.Leu72Ser) identified in a child with developmental delay, autistic features, hypotonia, increased immunoglobulin E and dental problems. Also supporting mouse assays demonstrating loss of protein expression in dendritic spines
DOI: https://doi.org/10.1016/j.xhgg.2021.100033 - missense and truncating variants in six unrelated individuals with varying degrees of intellectual disability or developmental delay. 5 were able to undergo segregation analysis and found to be de novo.
Sources: Literature
Mendeliome v0.7506 POLR3K Zornitza Stark gene: POLR3K was added
gene: POLR3K was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: POLR3K was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: POLR3K were set to 30584594; 33659930
Phenotypes for gene: POLR3K were set to Hypomyelinating leukodystrophy-21, MIM#619310
Review for gene: POLR3K was set to AMBER
Added comment: Two individuals from same ethnic background reported with a common homozygous missense variant in this gene, suggestive of founder effect. Some functional evidence, and note other gene family members are linked to similar phenotypes. Neurodegenerative phenotype: global developmental delay apparent from infancy with loss of motor, speech, and cognitive milestones in the first decades of life.
Sources: Expert Review
Mendeliome v0.7485 MED25 Zornitza Stark changed review comment from: Basel-Vanagaite-Smirin-Yosef syndrome is an autosomal recessive multiple congenital anomaly disorder characterized by severely delayed psychomotor development resulting in mental retardation, as well as variable eye, brain, cardiac, and palatal abnormalities.

7 individuals from 4 families reported initially, founder variant p.Tyr39Cys. Over 20 individuals reported since, including other variants.; to: Basel-Vanagaite-Smirin-Yosef syndrome is an autosomal recessive multiple congenital anomaly disorder characterized by severely delayed psychomotor development resulting in intellectual disability, as well as variable eye, brain, cardiac, and palatal abnormalities.

7 individuals from 4 families reported initially, founder variant p.Tyr39Cys. Over 20 individuals reported since, including other variants.
Mendeliome v0.7464 VPS41 Kristin Rigbye changed review comment from: "Five unrelated families with nine affected individuals, all carrying homozygous variants in VPS41 that we show impact protein function. All affected individuals presented with a progressive neurodevelopmental disorder consisting of cognitive impairment, cerebellar atrophy/hypoplasia, motor dysfunction with ataxia and dystonia, and nystagmus. Zebrafish disease modelling supports the involvement of VPS41 dysfunction in the disorder, indicating lysosomal dysregulation throughout the brain and providing support for cerebellar and microglial abnormalities when vps41 was mutated. This provides the first example of human disease linked to the HOPS-specific subunit VPS41 and suggests the importance of HOPS complex activity for cerebellar function."; to: "Five unrelated families with nine affected individuals, all carrying homozygous variants in VPS41 that we show impact protein function. All affected individuals presented with a progressive neurodevelopmental disorder consisting of cognitive impairment, cerebellar atrophy/hypoplasia, motor dysfunction with ataxia and dystonia, and nystagmus. Zebrafish disease modelling supports the involvement of VPS41 dysfunction in the disorder, indicating lysosomal dysregulation throughout the brain and providing support for cerebellar and microglial abnormalities when vps41 was mutated. This provides the first example of human disease linked to the HOPS-specific subunit VPS41 and suggests the importance of HOPS complex activity for cerebellar function."

"Affected individuals were born after uneventful pregnancies and presented in most cases early in life with developmental delay. Various degrees of ataxia, hypotonia, and dystonia were present in all affected individuals, preventing independent ambulation. Likewise, nystagmus was commonly described. In addition, all affected individuals displayed intellectual disability and speech delay. Two siblings further presented with therapy-resistant epilepsy. No major dysmorphic features were found. In two individuals, retinal pigment alterations were noticed. Brain MRI revealed mild cerebellar atrophy and vermian atrophy without other major structural abnormalities in most affected individuals while in one case (Subject 9) bilateral hyperintensities at the nucleus caudatus area were noted. No hearing or vision problems were noted and in cases where nerve conduction studies were performed, these were normal. Transmission electron microscopy (TEM) on peripheral blood lymphocytes from Subject 2 and lymphoblastoid cells from Subject 3 revealed more multilayered vesicles compared to control cells."
Mendeliome v0.7464 DPYSL5 Michelle Torres gene: DPYSL5 was added
gene: DPYSL5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DPYSL5 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: DPYSL5 were set to 33894126
Phenotypes for gene: DPYSL5 were set to Neurodevelopmental disorder with corpus callosum agenesis and cerebellar abnormalities
Review for gene: DPYSL5 was set to GREEN
Added comment: Nine individuals with brain malformations, including corpus callosum agenesis and/or posterior fossa abnormalities, associated with variable degrees of intellectual disability. The recurrent de novo p.Glu41Lys was found in eight unrelated patients, and a p.Gly47Arg variant was identified in one individual from the first family reported with Ritscher-Schinzel syndrome. Both impaired DPYSL5 function on dendritic outgrowth regulation by preventing the formation of the ternary complex with MAP2 and βIII-tubulin, ultimately leading to abnormal brain development
Sources: Literature
Mendeliome v0.7415 NPAS2 Alison Compton changed review comment from: The brothers with NOA from consanguineous Turkish family, homozygous NM_002518.3(NPAS2) c.1363C>G; p.(Pro455Ala) variant identified. Heterozygous in mother, and fertile brother and sister. Not present in 1000 Genomes, EVS or gnomAD. Predicted to be “benign” by Polyphen2, and "neutral" by both SIFT and Mutation taster. Not predicted to in a functional domain. Not listed as a disease-gene in OMIM, no other 'pathogenic' or 'likely pathogenic' variants listed in ClinVar. Paper did not include any functional work.; to: Three brothers with NOA from consanguineous Turkish family, homozygous NM_002518.3(NPAS2) c.1363C>G; p.(Pro455Ala) variant identified. Found to be heterozygous in mother, and fertile brother and sister. Not present in 1000 Genomes, EVS or gnomAD. Predicted to be “benign” by Polyphen2, and "neutral" by both SIFT and Mutation taster. Not predicted to be within a functional domain. Gene not listed as a disease-gene in OMIM, no other 'pathogenic' or 'likely pathogenic' variants listed in ClinVar. Publication did not include any functional work as support.
Mendeliome v0.7399 XPNPEP3 Zornitza Stark edited their review of gene: XPNPEP3: Added comment: PMID 20179356: two families with 5 individuals reported. Functional data, including animal models, supportive evidence for involvement in ciliary function.

PMID 32660933: Additional case reported.; Changed rating: GREEN; Changed publications: 20179356, 32660933
Mendeliome v0.7394 CHST11 Zornitza Stark gene: CHST11 was added
gene: CHST11 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: CHST11 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CHST11 were set to 26436107; 29514872
Phenotypes for gene: CHST11 were set to Osteochondrodysplasia, brachydactyly, and overlapping malformed digits, MIM# 618167
Review for gene: CHST11 was set to AMBER
Added comment: Osteochondrodysplasia, brachydactyly, and overlapping malformed digits (OCBMD) is characterized by bilateral symmetric skeletal defects that primarily affect the limbs. Affected individuals have mild short stature due to shortening of the lower leg bones, as well as hand and foot malformations, predominantly brachydactyly and overlapping digits. Other skeletal defects include scoliosis, dislocated patellae and fibulae, and pectus excavatum.

Two unrelated families reported, note one had a homozygous deletion. One family had 10 affected individuals.
Sources: Expert Review
Mendeliome v0.7388 EFEMP1 Zornitza Stark edited their review of gene: EFEMP1: Added comment: PMID 33807164: third unrelated family reported with CTD phenotype, single affected individual with bi-alllelic LoF variant, cutis laxa and multiple herniations.; Changed publications: 32006683, 31792352, 33807164
Mendeliome v0.7374 KCNJ6 Zornitza Stark changed review comment from: Keppen-Lubinsky syndrome characterised by severely delayed psychomotor development, hypertonia, hyperreflexia, generalized lipodystrophy giving an aged appearance, and distinctive dysmorphic features, including microcephaly, prominent eyes, narrow nasal bridge, and open mouth.

Three unrelated individuals reported with de novo variants in this gene (one recurred in 2), mouse model.; to: Keppen-Lubinsky syndrome characterised by severely delayed psychomotor development, hypertonia, hyperreflexia, generalized lipodystrophy giving an aged appearance, and distinctive dysmorphic features, including microcephaly, prominent eyes, narrow nasal bridge, and open mouth.

Four unrelated individuals reported with de novo variants in this gene (one recurred in 2), mouse model. One of the individuals did not have lipodystrophy but had a prominent hyperkinetic movement disorder.
Mendeliome v0.7360 HNRNPDL Bryony Thompson gene: HNRNPDL was added
gene: HNRNPDL was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: HNRNPDL was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: HNRNPDL were set to 24647604; 31267206; 31995753; 32407983; 32904822; 32367994
Phenotypes for gene: HNRNPDL were set to Muscular dystrophy, limb-girdle, autosomal dominant 3 MIM#609115
Review for gene: HNRNPDL was set to GREEN
gene: HNRNPDL was marked as current diagnostic
Added comment: At least 5 families reported with either D378H/N, and supporting functional assays demonstrating that these variants affect protein function. No other pathogenic variants have been reported. A VUS has been reported (along with another SETX variant) in an individual with a multi-system disorder, including a metabolic myopathy.
Sources: Expert list
Mendeliome v0.7358 JMJD1C Zornitza Stark gene: JMJD1C was added
gene: JMJD1C was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: JMJD1C was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: JMJD1C were set to 26181491; 32996679
Phenotypes for gene: JMJD1C were set to Intellectual disability
Review for gene: JMJD1C was set to GREEN
Added comment: Reported in ID cohort (with Rett-like phenotypic overlap) with supporting functional studies (PMID: 26181491). 7 individuals with rare variants identified, and variants demonstrated to be de novo in 2, one with a Rett-like phenotype and the other with ID. Functional study of the JMJD1C mutant Rett syndrome patient demonstrated that the altered protein had abnormal subcellular localization, diminished activity to demethylate the DNA damage-response protein MDC1, and reduced binding to MECP2. JMJD1C protein shown to be widely expressed in brain regions and that its depletion compromised dendritic activity.

Splice-disrupting JMJD1C variant reported in association with learning disability and myoclonic epilepsy (PMID 32996679).

Disruption of gene due to balanced translocation (PMID 33591602) implicated in autism spectrum disease phenotype.
Sources: Expert Review
Mendeliome v0.7346 GCGR Zornitza Stark gene: GCGR was added
gene: GCGR was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: GCGR was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GCGR were set to 19657311; 25695890; 27933176; 30032256; 30294546
Phenotypes for gene: GCGR were set to Mahvash disease, MIM# 619290
Review for gene: GCGR was set to GREEN
Added comment: Mahvash disease (MVAH) is caused by inactivating mutations in the glucagon receptor, leading to alpha-cell hyperplasia of the pancreas, hyperglucagonaemia without glucagonoma syndrome, and occasional hypoglycaemia. The disease may lead to glucagonomas and/or primitive neuroectodermal tumours.

More than 5 unrelated families reported.
Sources: Expert list
Mendeliome v0.7339 PRDM15 Zornitza Stark gene: PRDM15 was added
gene: PRDM15 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PRDM15 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PRDM15 were set to 31950080
Phenotypes for gene: PRDM15 were set to Steroid resistant nephrotic syndrome; Holoprosencephaly
Review for gene: PRDM15 was set to AMBER
Added comment: Four consanguineous families reported with same homozygous variant, C844Y, shown to be LoF. Syndromic SRNS including HPE, brain malformations, polydactyly, congenital heart disease. Mouse model, extensive functional data focused on the brain phenotype. Two additional homozygous missense identified with isolated SRNS.
Sources: Literature
Mendeliome v0.7289 NEUROD2 Zornitza Stark edited their review of gene: NEUROD2: Added comment: Additional two individuals reported with de novo variants and predominantly ID phenotype.; Changed publications: 33438828, 30323019; Changed phenotypes: Epileptic encephalopathy, early infantile, 72, MIM# 618374
Mendeliome v0.7249 NDUFB11 Kristin Rigbye changed review comment from: Variable syndromic features have been observed in affected individuals, however anaemia and cardiomyopathy appear to be consistent features in males and females, respectively (PMID: 28050600, PMID: 30423443, PMID: 27488349).

Affected females have previously been reported with inherited pathogenic variants from their unaffected mothers. It has been suggested that this may be due to patterns of somatic X-chromosome inactivation, mosaicism or additional genetic or external factors (PMID: 28050600).

Affected females have been reported with null alleles, whereas affected males have only been identified with missense variants or a recurrent single residue in-frame deletion, suggesting that some residual enzyme activity is required for males to be viable, whereas complete loss of function variants may be lethal when hemizygous (PMID: 30423443).
Note: female carriers of missense variants have not been reported as clinically affected.

Western blots from cells of male patients with the recurrent F93del variant showed reduced protein levels, and recombinant cells demonstrated a proliferation defect, consistent with the anaemia phenotype (PMID: 27488349).; to: Variable syndromic features have been observed in affected individuals, however anaemia and cardiomyopathy appear to be consistent features in males and females, respectively (PMID: 28050600, PMID: 30423443, PMID: 27488349).

It has been suggested that heterozygous females do not display the severe phenotype associated with mitochondrial complex 1 deficiency due to highly skewed XCI favouring expression of the wild type allele, whereas these null variants result in a severe lethal disorder in hemizygous males (PMID: 25772934).

Affected females have previously been reported with inherited pathogenic variants from their unaffected mothers. It has been suggested that this may be due to patterns of somatic X-chromosome inactivation, mosaicism or additional genetic or external factors (PMID: 28050600).

Affected females have been reported with null alleles, whereas affected males have only been identified with missense variants or a recurrent single residue in-frame deletion, suggesting that some residual enzyme activity is required for males to be viable, whereas complete loss of function variants may be lethal when hemizygous (PMID: 30423443).
Note: female carriers of missense variants have not been reported as clinically affected.

Western blots from cells of male patients with the recurrent F93del variant showed reduced protein levels, and recombinant cells demonstrated a proliferation defect, consistent with the anaemia phenotype (PMID: 27488349).
Mendeliome v0.7217 SLC19A1 Zornitza Stark gene: SLC19A1 was added
gene: SLC19A1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: SLC19A1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLC19A1 were set to 32276275
Phenotypes for gene: SLC19A1 were set to Megaloblastic anemia, folate-responsive, MIM# 601775
Review for gene: SLC19A1 was set to RED
Added comment: Single individual reported with in-frame deletion, some functional data.
Sources: Expert list
Mendeliome v0.7212 ERCC1 Zornitza Stark changed review comment from: Three unrelated families reported, variable severity reported from a Cockayne phenotype with congenital onset and early mortality, through to adolescent presentation with short stature, photosensitivity and progressive liver and renal dysfunction.; to: More than three unrelated families reported, variable severity reported from a Cockayne phenotype with congenital onset and early mortality, through to adolescent presentation with short stature, photosensitivity and progressive liver and renal dysfunction.
Mendeliome v0.7209 NDUFA8 Zornitza Stark commented on gene: NDUFA8: Second family reported with pair of affected siblings and homozygous missense variant, some functional data.
Mendeliome v0.7201 GREB1L Zornitza Stark edited their review of gene: GREB1L: Added comment: DFNA80 is characterized by nonsyndromic congenital deafness associated with absent or malformed cochleae and eighth cranial nerves. Four unrelated families reported, no comment on a renal phenotype. Note variants in this gene are also associated with renal agenesis.; Changed publications: 29100091, 29955957, 32585897; Changed phenotypes: Renal hypodysplasia/aplasia 3, OMIM# 617805, Deafness, autosomal dominant 80, MIM# 619274
Mendeliome v0.7199 EMC10 Zornitza Stark edited their review of gene: EMC10: Added comment: Additional 12 individuals from 7 Middle Eastern families reported. Same variant in all, suggestive of founder effect (but different to the previously reported family).; Changed rating: GREEN; Changed publications: 32869858, 33531666; Changed phenotypes: Neurodevelopmental disorder with dysmorphic facies and variable seizures, MIM# 619264
Mendeliome v0.7192 ADCY6 Zornitza Stark changed review comment from: Laquerriere et al. (2014): 2 sibs from a consanguineous family with an axoglial form of lethal congenital contracture syndrome, and homozygous missense ADCY6 mutation (R1116C). The parents were heterozygous for the mutation. Knocked down ADCY6 orthologs in zebrafish showed a loss of myelin basic protein expression in the peripheral nervous system but no defects in Schwann cell migration and axonal growth. Gonzaga‐Jauregui et al. (2015): 1 patient with congenital hypotonia, distal joint contractures, hypomyelinating neuropathy, and vocal cord paralysis, and a homozygous missense ADCY6 variant. No functional studies. Deceased sister with a similar phenotype with hypotonia, areflexia, and hypomyelinating neuropathy who died at 18 months of respiratory insufficiency. Agolini et al. (2020): 1 patient with severe form of AMC, with two novel compound heterozygous variants in ADCY6 (parents confirmed carriers), but no functional studies.
Sources: Literature; to: - PMID: 33820833 (2021) - Further 2 sibs reported with a homozygous c.3346C>T:p.Arg1116Cys variant in the ADCY6 gene. The family was identified from a cohort of 315 genetically undiagnosed and unrelated AMC families. Arthrogryposis and IUGR were detected prenatally.

Laquerriere et al. (2014): 2 sibs from a consanguineous family with an axoglial form of lethal congenital contracture syndrome, and homozygous missense ADCY6 mutation (R1116C). The parents were heterozygous for the mutation. Knocked down ADCY6 orthologs in zebrafish showed a loss of myelin basic protein expression in the peripheral nervous system but no defects in Schwann cell migration and axonal growth. Gonzaga‐Jauregui et al. (2015): 1 patient with congenital hypotonia, distal joint contractures, hypomyelinating neuropathy, and vocal cord paralysis, and a homozygous missense ADCY6 variant. No functional studies. Deceased sister with a similar phenotype with hypotonia, areflexia, and hypomyelinating neuropathy who died at 18 months of respiratory insufficiency. Agolini et al. (2020): 1 patient with severe form of AMC, with two novel compound heterozygous variants in ADCY6 (parents confirmed carriers), but no functional studies.
Sources: Literature
Mendeliome v0.7191 UNC50 Arina Puzriakova gene: UNC50 was added
gene: UNC50 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: UNC50 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: UNC50 were set to 29016857; 33820833
Phenotypes for gene: UNC50 were set to Arthrogryposis multiplex congenita
Review for gene: UNC50 was set to AMBER
Added comment: UNC50 is currently not associated with any phenotype in OMIM (last edited on 02/01/2018) or Gene2Phenotype.

- PMID: 29016857 (2017) - Homozygosity mapping of disease loci combined with WES in a single male from a consanguineous family presenting with lethal AMC revealed a homozygous frameshift deletion in UNC50 gene (c.750_751del:p.Cys251Phefs*4). Functional studies in C. elegans showed the variant caused loss of acetylcholine receptor expression in the muscle.

- PMID: 33820833 (2021) - Single individual reported with the same homozygous c.750_751del:p.Cys251Phefs*4 variant in UNC50 as previously described. The case was identified from a cohort of 315 genetically undiagnosed and unrelated AMC families. Arthrogryposis and tetra ventricular dilation were detected prenatally.

-- Note: it isn't definitively clear whether these are different individuals. Both are singleton males born to consanguineous parents, with the same variant and similar phenotype. Also both infants died at 28 w.g. However, the 2021 paper (PMID:33820833) states their patient was selected from a cohort of cases without a molecular diagnosis and indicate the UNC50 gene had already previously been identified in relation to this phenotype, highlighting the earlier paper (PMID:29016857). There is also no mention of tetra ventricular dilation in the first case, so it is likely that these do represent distinct individuals. Additional cases needed to provide clarity.
Sources: Literature
Mendeliome v0.7187 PDIA6 Zornitza Stark gene: PDIA6 was added
gene: PDIA6 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PDIA6 was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: PDIA6 were set to Asphyxiating thoracic dystrophy (ATD) syndrome and infantile‐onset diabetes
Review for gene: PDIA6 was set to AMBER
Added comment: Amber in view of the good quality functional data.

1 case with asphyxiating thoracic dystrophy (ATD) syndrome and infantile‐onset diabetes. Whole exome sequencing revealed a homozygous frameshift variant in the PDIA6 gene. RNA expression was reduced in a gene dosage‐dependent manner, supporting a loss‐of‐function effect of this variant. Phenotypic correlation with the previously reported mouse model recapitulated the growth defect and delay, early lethality, coagulation, diabetes, immunological, and polycystic kidney disease phenotypes. The phenotype of the current patient is consistent with phenotypes associated with the disruption of PDIA6 and the sensors of UPR in mice and humans.
Sources: Literature
Mendeliome v0.7186 EXOSC1 Zornitza Stark gene: EXOSC1 was added
gene: EXOSC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: EXOSC1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: EXOSC1 were set to 33463720
Phenotypes for gene: EXOSC1 were set to Pontocerebellar hypoplasia
Review for gene: EXOSC1 was set to RED
Added comment: An 8‐months‐old male with developmental delay, microcephaly, subtle dysmorphism, hypotonia, pontocerebellar hypoplasia and delayed myelination. Similarly affected elder sibling succumbed at the age of 4‐years 6‐months. Exome sequencing revealed a homozygous missense variant (c.104C >T, p.Ser35Leu) in EXOSC1. In silico mutagenesis revealed loss of a polar contact with neighbouring Leu37 residue. Quantitative real‐time PCR indicated no appreciable differences in EXOSC1 transcript levels. Immunoblotting and blue native PAGE revealed reduction in the EXOSC1 protein levels and EXO9 complex in the proband, respectively. Of note, bi‐allelic variants in other exosome subunits EXOSC3, EXOSC8 and EXOSC9 have been reported to cause pontocerebellar hypoplasia type 1B, type 1C and type 1D, respectively.
Sources: Literature
Mendeliome v0.7180 MAPKAPK5 Zornitza Stark gene: MAPKAPK5 was added
gene: MAPKAPK5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MAPKAPK5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MAPKAPK5 were set to 3344202
Phenotypes for gene: MAPKAPK5 were set to Developmental delay, variable brain anomalies, congenital heart defects, dysmorphic
Review for gene: MAPKAPK5 was set to GREEN
Added comment: 3 individuals from 2 families with severe developmental delay, variable brain anomalies, congenital heart defects, dysmorphic facial features, and a distinctive type of synpolydactyly with an additional hypoplastic digit between the fourth and fifth digits of hands and/or feet. Exome sequencing identified different homozygous truncating variants in MAPKAPK5 in both families, segregating with disease and unaffected parents as carriers.

Patient-derived cells showed no expression of MAPKAPK5 protein isoforms and reduced levels of the MAPKAPK5-interacting protein ERK3. F-actin recovery after latrunculin B treatment was found to be less efficient in patient-derived fibroblasts than in control cells, supporting a role of MAPKAPK5 in F-actin polymerization.
Sources: Literature
Mendeliome v0.7169 SLC17A5 Zornitza Stark edited their review of gene: SLC17A5: Added comment: Sialic acid storage diseases are autosomal recessive neurodegenerative disorders that may present as a severe infantile form or a slowly progressive adult form, which is prevalent in Finland and referred to as Salla disease. p.Arg39Cys is a founder Finnish variant. Multiple families reported.; Changed publications: 10581036, 10947946; Changed phenotypes: Salla disease 604369, MONDO:0011449, Sialic acid storage disorder, infantile 269920, MONDO:0010027
Mendeliome v0.7166 SMPD1 Zornitza Stark changed review comment from: Well established gene-disease association.; to: Niemann-Pick disease (NPD) refers to a group of disorders that present with varying degrees of lipid storage and foam cell infiltration in tissues, as well as overlapping clinical features including hepatosplenomegaly, pulmonary insufficiency and/or central nervous system (CNS) involvement. Type A NPD patients exhibit hepatosplenomegaly in infancy and profound CNS involvement. They rarely survive beyond 2-3years of age. Type B patients also have hepatosplenomegaly and pathologic alterations of their lungs, but there are usually no CNS signs. The age of onset and rate of disease progression varies greatly among type B patients, and they frequently live into adulthood. Intermediate patients also have been reported with mild to moderate neurological findings.

Well established gene-disease association.
Mendeliome v0.7161 PSAP Zornitza Stark changed review comment from: Well established gene-disease association for bi-allelic variants. Early-onset PD reported with mono-allelic variants.; to: Well established gene-disease association for bi-allelic variants. Early-onset PD reported with mono-allelic variants.

The PSAP gene encodes saposins A, B, C and D. Variants resulting in PSAP null allele can be shared in patients with the deficit of other saposins (A-D) or whole prosaposin. The patient's phenotype depends then on the nature of the second allele - atypical Gaucher disease in case of saposin A, MLD in case of saposin B, and Krabbe disease in case of saposin C impairing mutations. The clinically most severe prosaposin deficit is caused by the presence of two PSAP null alleles.
Mendeliome v0.7147 MIA3 Zornitza Stark changed review comment from: Odontochondrodysplasia-2 with hearing loss and diabetes (ODCD2) is characterized by growth retardation with proportionate short stature, dentinogenesis imperfecta, sensorineural hearing loss, insulin-dependent diabetes, and mild intellectual disability.

Four affected siblings reported. Mouse model has absence of bone mineralization.
Sources: Expert list; to: Odontochondrodysplasia-2 with hearing loss and diabetes (ODCD2) is characterized by growth retardation with proportionate short stature, dentinogenesis imperfecta, sensorineural hearing loss, insulin-dependent diabetes, and mild intellectual disability.

Four affected siblings reported, homozygous variant affecting splicing. Mouse model has absence of bone mineralization.
Sources: Expert list
Mendeliome v0.7147 MIA3 Zornitza Stark gene: MIA3 was added
gene: MIA3 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MIA3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MIA3 were set to 32101163; 33778321
Phenotypes for gene: MIA3 were set to Ondontochondrodysplasia 2 with hearing loss and diabetes , MIM#619269
Review for gene: MIA3 was set to AMBER
Added comment: Odontochondrodysplasia-2 with hearing loss and diabetes (ODCD2) is characterized by growth retardation with proportionate short stature, dentinogenesis imperfecta, sensorineural hearing loss, insulin-dependent diabetes, and mild intellectual disability.

Four affected siblings reported. Mouse model has absence of bone mineralization.
Sources: Expert list
Mendeliome v0.7113 MESP1 Zornitza Stark gene: MESP1 was added
gene: MESP1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MESP1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MESP1 were set to 28677747; 28050627; 27185833; 26694203
Phenotypes for gene: MESP1 were set to Congenital heart disease
Review for gene: MESP1 was set to AMBER
Added comment: Rare/novel variants reported in at least 7 unrelated individuals with congenital heart disease, in-silicos conflicting, familial segregation only available for some (one de novo, three inherited, others unresolved). Functional data implicates gene in cardiac development.
Sources: Expert list
Mendeliome v0.7084 FBN2 Zornitza Stark edited their review of gene: FBN2: Added comment: The association between mono-allelic variants in FBN2 and CCA is well established. Recent report of bi-allelic variants, Kloth (2021): biallelic FBN2 variants (PTC/missense) in a teenager with severe CCA, including cardiac defects, mild scoliosis and muscular involvement. Carrier parents both "healthy/unaffected". Phenotype matches mouse K/O. Authors performed a lit review and identified an additional 2 homozygous patients (both missense variants) with - fetal akinesia, brain ischemia and neonatal death - severe muscle weakness with bilateral clubfeet, a pronounced gait disturbance, recurrent patellar dislocations, flexion contractures, camptodactyly, widespread striae and an unusual myofibrillar disorganization, variation in fiber size and atrophic fibers in muscle biopsy.

Evidence for association with Macular degeneration, early-onset MIM#616118 is limited. One family reported, plus some rare variants reported in cohort studies. The familial variant p.Glu1144Lys is present in 11 hets in gnomad and has benign in silicos. The second variant reported in the paper, p.Met1247Thr is present in >20 hets.; Changed rating: GREEN; Changed publications: 33571691; Changed phenotypes: Contractural arachnodactyly, congenital MIM#121050, Macular degeneration, early-onset MIM#616118; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.7080 NDUFB7 Bryony Thompson gene: NDUFB7 was added
gene: NDUFB7 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NDUFB7 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NDUFB7 were set to 33502047; 27626371
Phenotypes for gene: NDUFB7 were set to Congenital lactic acidosis; hypertrophic cardiomyopathy
Review for gene: NDUFB7 was set to AMBER
Added comment: Single patient with a homozygous variant impacting RNA splicing (c.113-10C>G) with intrauterine growth restriction and anaemia, which displayed postpartum hypertrophic cardiomyopathy, lactic acidosis, encephalopathy, and a severe complex I defect with fatal outcome. Also, a supporting knockout cell line model demonstrating impaired complex I assembly.
Sources: Literature
Mendeliome v0.7075 CELA3B Bryony Thompson gene: CELA3B was added
gene: CELA3B was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CELA3B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CELA3B were set to 31369399; 33565216
Phenotypes for gene: CELA3B were set to Chronic pancreatitis
Mode of pathogenicity for gene: CELA3B was set to Other
Review for gene: CELA3B was set to AMBER
Added comment: PMID: 33565216 - p.Arg90Cys (c.268C>T) identified in a chronic pancreatitis (also diabetes and pancreatic adenocarcinoma present in some individuals) pedigree. Variant was present in 2 affected individuals and not present in 7 healthy relatives. Also, supporting in vitro functional assays demonstrating gain of function mechanism for R90C and R90L, and supporting mouse model.
PMID: 31369399 - p.Arg90Leu (c.269G>T) identified in 4 French chronic pancreatitis cases and 0 controls. However, there are 229 hets in gnomAD v2.1 with this variant.
Sources: Literature
Mendeliome v0.7073 SLC10A1 Zornitza Stark gene: SLC10A1 was added
gene: SLC10A1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: SLC10A1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLC10A1 were set to 24867799; 27882152; 28835676; 29290974; 31201272
Phenotypes for gene: SLC10A1 were set to Familial hypercholanemia-2, MIM#619256
Review for gene: SLC10A1 was set to GREEN
Added comment: IEM characterised by persistently increased plasma levels of conjugated bile salts apparent from infancy. Most patients are asymptomatic and have no liver dysfunction, although some neonates may have transient jaundice or transiently elevated liver enzymes. These abnormalities improve with age. The bile acid defect can result in impaired absorption of fat-soluble vitamins, including D and K, causing decreased bone mineral density or prolonged prothrobin time (PT). Some variants are recurrent (founder effect likely) but at least 3 different variants reported, mouse model.
Sources: Expert list
Mendeliome v0.7056 CCDC88C Paul De Fazio changed review comment from: Heterozygous missense variant (gnomad: 1 het) reported in a 48-year-old Sudanese female presented with pure early onset hereditary spastic paraplegia. In contrast to previous reports, she developed neurological symptoms in early childhood and showed neither features of cerebellar ataxia, extrapyramidal signs, nor evidence of intellectual involvement. Functional studies showed the varaint induced JNK hyper-phosphorylation and enhanced apoptosis. 4 unaffected family members did not have the variant.

This phenotype appears to be sufficiently dissimilar to the 2 previously reported SCA families to not constitute a 3rd supporting report in that context.; to: Heterozygous missense variant (gnomad: 1 het) reported in a 48-year-old Sudanese female presented with pure early onset hereditary spastic paraplegia. In contrast to previous reports, she developed neurological symptoms in early childhood and showed neither features of cerebellar ataxia, extrapyramidal signs, nor evidence of intellectual involvement. Functional studies showed the varaint induced JNK hyper-phosphorylation and enhanced apoptosis. 4 unaffected family members did not have the variant.

NB: Rated Amber as this phenotype appears to be sufficiently dissimilar to the 2 previously reported SCA families to not constitute a 3rd supporting report in that context. Gene remains Green for the AR ID phenotype.
Mendeliome v0.7029 ATCAY Zornitza Stark edited their review of gene: ATCAY: Added comment: Report of a variant c.599_605del, p.Pro200Profs*20 (PMID 29449188), which is in addition to the previously reported linked variants in the Cayman population (c.965+3G > T & p.S301R)(PMID 29449188). Mouse and zebra fish models share phenotypic features with humans with Ataxia, cerebellar, Cayman type (OMIM:601238)(PMID 14556008; 26343454).; Changed rating: GREEN; Changed publications: 14556008, 29449188, 23226316, 26343454; Changed phenotypes: Ataxia, cerebellar, Cayman type, MIM# 601238, MONDO:0011025
Mendeliome v0.7027 ARAP3 Zornitza Stark gene: ARAP3 was added
gene: ARAP3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ARAP3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ARAP3 were set to 32908855
Phenotypes for gene: ARAP3 were set to Lymphoedema
Review for gene: ARAP3 was set to AMBER
Added comment: Three unrelated families reported with rare missense variants in this gene as part of a lymphoedema cohort. However, incomplete information regarding segregation and no supporting functional data.
Sources: Literature
Mendeliome v0.7026 RORC Zornitza Stark changed review comment from: Association with lymphoedema: Two individuals reported with LoF variants as part of a large cohort. Note gene is depleted for LoF in gnomad, and bi-allelic variants have been associated with immunodeficiency.; to: Association with lymphoedema: Two individuals reported with LoF variants as part of a large cohort. Note gene is depleted for LoF in gnomad, and bi-allelic variants have been associated with immunodeficiency. Moderate evidence for gene-disease association.
Mendeliome v0.7026 RORC Zornitza Stark edited their review of gene: RORC: Added comment: Association with lymphoedema: Two individuals reported with LoF variants as part of a large cohort. Note gene is depleted for LoF in gnomad, and bi-allelic variants have been associated with immunodeficiency.; Changed publications: 26160376, 32960152; Changed phenotypes: Immunodeficiency 42, MIM# 616622, Autosomal recessive mendelian susceptibility to mycobacterial diseases due to complete RORgamma receptor deficiency, MONDO:0014710, Lymphoedema; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.7006 PORCN Zornitza Stark Marked gene: PORCN as ready
Mendeliome v0.7006 PORCN Zornitza Stark Gene: porcn has been classified as Green List (High Evidence).
Mendeliome v0.7006 PORCN Zornitza Stark Phenotypes for gene: PORCN were changed from to Focal dermal hypoplasia, MIM# 305600
Mendeliome v0.7005 PORCN Zornitza Stark Mode of inheritance for gene: PORCN was changed from Unknown to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Mendeliome v0.7004 PORCN Zornitza Stark reviewed gene: PORCN: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Focal dermal hypoplasia, MIM# 305600; Mode of inheritance: X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Mendeliome v0.6998 MCM10 Zornitza Stark edited their review of gene: MCM10: Added comment: PMID 33712616: second family reported, three affected sibs with restrictive cardiomyopathy and hypoplasia of the spleen and thymus. Functional data suggested that MCM10 deficiency causes chronic replication stress that reduces cell viability due to increased genomic instability and telomere erosion.; Changed publications: 32865517, 33712616; Changed phenotypes: Susceptibility to CMV, Restrictive cardiomyopathy
Mendeliome v0.6994 NUP37 Zornitza Stark changed review comment from: Single family reported with nephrotic syndrome.
Sources: Literature; to: Single family reported with nephrotic syndrome and microcephaly.
Sources: Literature
Mendeliome v0.6924 CD4 Zornitza Stark changed review comment from: Single individual reported, functional data, emerging gene.; to: Two individuals reported, functional data.
Mendeliome v0.6921 TMEM231 Zornitza Stark changed review comment from: Two families described with the Joubert phenotype, severely affected, not ambulant.; to: More than 3 unrelated families reported with each phenotype, functional data.
Mendeliome v0.6918 TMEM216 Zornitza Stark changed review comment from: Ataxia is part of the phenotype.; to: p.Arg73Leu is a founder Jewish variant. Multiple families reported with JBTS and with Meckel syndrome.
Mendeliome v0.6915 TMEM138 Zornitza Stark changed review comment from: Ataxia not specifically reported in association with this gene.; to: At least 5 unrelated families reported.
Mendeliome v0.6915 TCTN2 Zornitza Stark changed review comment from: Multiple families reported, ataxia is part of the phenotype.; to: At least 5 families reported with JBTS phenotype, and 3 with Meckel phenotype; mouse model.
Mendeliome v0.6909 TCTN1 Zornitza Stark changed review comment from: Rare cause of JBS, ataxia specifically mentioned in at least one individual.; to: Rare cause of JBS, at least 4 families reported, mouse model.
Mendeliome v0.6908 SMCHD1 Zornitza Stark edited their review of gene: SMCHD1: Added comment: Bosma arhinia microphthalmia syndrome (BAMS) is characterized by severe hypoplasia of the nose and eyes, palatal abnormalities, deficient taste and smell, inguinal hernias, hypogonadotropic hypogonadism with cryptorchidism, and normal intelligence. Choanal atresia is a feature. More than 30 unrelated individuals reported. Caused by gain of function missense variants with the extended ATPase domain.; Changed rating: GREEN; Changed mode of pathogenicity: Other; Changed publications: 28067909; Changed phenotypes: Bosma arhinia microphthalmia syndrome, MIM# 603457, Arhinia, choanal atresia, microphthalmia MONDO:0011323; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.6901 SPINT2 Zornitza Stark changed review comment from: More than 15 unrelated families reported.; to: Well established gene-disease association. PMID 30445423 reviews 34 patients from 26 families: 13 different variants in SPINT2 were seen, including 3 premature termination codons, 2 start codon removals, and 3 canonical splice site variants, supporting loss of function as the pathogenic mechanism. The most commonly observed variant was Y163C, observed in 40 (59%) of 68 disease alleles. Seven unrelated patients with the Y163C mutation had a shared haplotype, suggesting that it is a founder mutation. Choanal atresia (20/34) and keratitis of infantile onset (26/34) were the most common findings. All patients presented with intractable diarrhoea, with onset typically in the first 2 weeks of life. Episodes of intestinal pseudoobstruction sometimes preceded the onset of diarrhoea. Characteristic epithelial tufts on intestinal histology were seen in 13 of the 34 patients.
Mendeliome v0.6878 CLDN2 Zornitza Stark edited their review of gene: CLDN2: Added comment: Azoospermia: single multigenerational family reported.; Changed publications: 29884332, 31163246, 31320686; Changed phenotypes: Susceptibility to pancreatitis, Azoospermia, obstructive, with nephrolithiasis, MIM# 301060; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.6878 FLII Zornitza Stark changed review comment from: Two unrelated families reported with homozygous missense variants. Emerging evidence.
Sources: Literature; to: Two unrelated families reported with homozygous missense variants. Emerging evidence: aware of two more families.
Sources: Literature
Mendeliome v0.6876 HSF2BP Zornitza Stark gene: HSF2BP was added
gene: HSF2BP was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: HSF2BP was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: HSF2BP were set to 32845237
Phenotypes for gene: HSF2BP were set to Premature ovarian failure, OMIM#619245
Review for gene: HSF2BP was set to RED
Added comment: Single family reported where homozygous missense variant segregated with POF in three sisters.
Sources: Expert list
Mendeliome v0.6851 IL37 Zornitza Stark gene: IL37 was added
gene: IL37 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: IL37 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: IL37 were set to 33674380
Phenotypes for gene: IL37 were set to Infantile inflammatory bowel disease
Review for gene: IL37 was set to RED
Added comment: Single family reported with homozygous truncating variant this gene and infantile-onset of IBD, some functional data.
Sources: Literature
Mendeliome v0.6842 CNBP Bryony Thompson Added comment: Comment on list classification: Condition is caused by a CCTG expansion in intron 1. No reported SNVs or indels reported in association with disease. Present under STRs on this panel
Mendeliome v0.6830 NOP56 Bryony Thompson Added comment: Comment on list classification: A hexanucleotide (GGCCTG) repeat expansion in the first intron of the NOP56 gene is the only reported cause of disease. See STRS
Mendeliome v0.6816 SCA2 Bryony Thompson STR: SCA2 was added
STR: SCA2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for STR: SCA2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for STR: SCA2 were set to 29325606; 20301452
Phenotypes for STR: SCA2 were set to Spinocerebellar ataxia 2 MIM#183090
Review for STR: SCA2 was set to GREEN
STR: SCA2 was marked as clinically relevant
Added comment: NM_002973​.3:c.496_498CAG[X]
Toxic protein aggregation is mechanism of disease
Benign: ≤31 repeats (homozygous 31/31 repeats reported for recessive SCA2)
Uncertain: 32 repeats
ALS risk allele: 30-32 repeats
Reduced penetrance: 33-34 repeats, may not develop symptoms or only very late in life
Full penetrance: ≥35 repeats
Interruption of a CAG expanded allele by a CAA repeat does not mitigate the pathogenicity of the repeat size, but may enhance the meiotic stability of the repeat
Sources: Expert list
Mendeliome v0.6810 INPP4A Zornitza Stark gene: INPP4A was added
gene: INPP4A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: INPP4A was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: INPP4A were set to 31978615; 31938306; 25338135; 20011524
Phenotypes for gene: INPP4A were set to Intellectual disability
Review for gene: INPP4A was set to AMBER
Added comment: Two families reported with bi-allelic variants and a neurological phenotype. Supportive mouse model and expression data.
Sources: Literature
Mendeliome v0.6808 SATB1 Zornitza Stark edited their review of gene: SATB1: Added comment: Kohlschutter-Tonz syndrome-like (KTZSL) is characterized by global developmental delay with moderately to severely impaired intellectual development, poor or absent speech, and delayed motor skills. Although the severity of the disorder varies, many patients are nonverbal and have hypotonia with inability to sit or walk. Early-onset epilepsy is common and may be refractory to treatment, leading to epileptic encephalopathy and further interruption of developmental progress. Most patients have feeding difficulties with poor overall growth and dysmorphic facial features, as well as significant dental anomalies resembling amelogenesis imperfecta. This phenotype was reported in 28 patients (patients 13 to 40, PMID 33513338), including 9 patients from 3 families. Most variants were de novo, though some were inherited, suggestive of incomplete penetrance and variable expressivity.; Changed phenotypes: Developmental delay with dysmorphic facies and dental anomalies, MIM# 619228, Kohlschutter-Tonz syndrome-like, MIM# 619229
Mendeliome v0.6808 SATB1 Zornitza Stark commented on gene: SATB1: Developmental delay with dysmorphic facies and dental anomalies (DEFDA) is characterized by generally mild global developmental delay with variably impaired intellectual development, walking by 2 to 3 years, and slow language acquisition. The severity of the disorder ranges from moderate cognitive deficits to mild learning difficulties or behavioral abnormalities. Most patients have dysmorphic facial features, often with abnormal dentition and nonspecific visual defects, such as myopia, astigmatism, and strabismus. Although rare, involvement of other systems, such as skeletal, cardiac, and gastrointestinal, may be present. 12 individuals from 11 families reported (one inherited variant, affected parent).
Mendeliome v0.6801 FLII Zornitza Stark gene: FLII was added
gene: FLII was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FLII was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FLII were set to 32870709
Phenotypes for gene: FLII were set to Dilated cardiomyopathy
Review for gene: FLII was set to AMBER
Added comment: Two unrelated families reported with homozygous missense variants. Emerging evidence.
Sources: Literature
Mendeliome v0.6799 RHBDF1 Zornitza Stark gene: RHBDF1 was added
gene: RHBDF1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RHBDF1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RHBDF1 were set to 32870709
Phenotypes for gene: RHBDF1 were set to Dilated cardiomyopathy
Review for gene: RHBDF1 was set to AMBER
Added comment: Three families reported with homozygous variants in this gene and onset of DCM in infancy/childhood. Two of the families had the same truncating variant, indicative of founder effect, and one family had a homozygous missense variant.
Sources: Literature
Mendeliome v0.6797 MYLK3 Zornitza Stark gene: MYLK3 was added
gene: MYLK3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MYLK3 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: MYLK3 were set to 29235529; 31244672; 32213617; 32870709
Phenotypes for gene: MYLK3 were set to Dilated cardiomyopathy
Review for gene: MYLK3 was set to AMBER
Added comment: Two families reported with mono-allelic variants (one extension, one frameshift), and three consanguineous families reported with bi-allelic variants (two hmz frameshift, one hmz missense). Supportive mouse models.
Sources: Literature
Mendeliome v0.6795 NRAP Zornitza Stark gene: NRAP was added
gene: NRAP was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NRAP was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NRAP were set to 33534821; 30384889; 28611399; 32870709
Phenotypes for gene: NRAP were set to Dilated cardiomyopathy
Review for gene: NRAP was set to GREEN
Added comment: Twenty unrelated families reported with childhood onset DCM.
Sources: Literature
Mendeliome v0.6793 MPEG1 Zornitza Stark gene: MPEG1 was added
gene: MPEG1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MPEG1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MPEG1 were set to 33224153; 33692780; 28422754
Phenotypes for gene: MPEG1 were set to Immunodeficiency 77, MIM# 619223
Review for gene: MPEG1 was set to GREEN
Added comment: Immunodeficiency-77 (IMD77) is an immunologic disorder characterized by recurrent and persistent polymicrobial infections with multiple unusual organisms. Skin and pulmonary infections are the most common, consistent with increased susceptibility to epithelial cell infections. The age at onset is highly variable: some patients have recurrent infections from childhood, whereas others present in late adulthood. The limited number of reported patients are all female, suggesting incomplete penetrance or a possible sex-influenced trait. Patient cells, mainly macrophages, show impaired killing of intracellular bacteria and organisms, including nontubercular mycobacteria, although there is also impaired killing of other organisms, such as Pseudomonas, Candida, and Aspergillus.

Four individuals reported, functional data, including animal model.
Sources: Expert list
Mendeliome v0.6785 CSPP1 Zornitza Stark changed review comment from: More than 20 unrelated families reported.; to: More than 20 unrelated families reported. Classically associated with Joubert syndrome; however, note 4 individuals reported with features consistent with Jeune asphyxiating thoracic dystrophy, including short ribs, bell-shaped chest, and pulmonary hypoplasia.
Mendeliome v0.6769 ALDH1L2 Naomi Baker gene: ALDH1L2 was added
gene: ALDH1L2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ALDH1L2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ALDH1L2 were set to PMID: 31341639; 33168096
Phenotypes for gene: ALDH1L2 were set to pruritic ichthyosis, severe diffuse hypomyelination seen on MRI, and abnormal lipid peaks
Review for gene: ALDH1L2 was set to RED
Added comment: Individual reported with bialleleic ALDH1L2 variants (non-canonical splice and a frameshift mutation), who also has a de novo hemizygous RPS6KA3 frameshift mutation. Authors state that not all features of the individual could be explained by the RPS6KA3 variant, and that consideration of Coffin-Lowry sysndrome was only made after identification of the RPS6KA3 variant. Therefore individual has there is a blended phenotype of Coffin–Lowry syndrome and Sjögren–Larsson syndrome. From functional studies authors propose that the ALDH1L2 loss induces mitochondrial dysfunction due to reduced NADPH and increased oxidative stress (PMID: 31341639). Knockout mouse model was viable and did not show an apparent phenotype, however metabolomic analysis showed vastly changed metabotypes in the liver and plasma in these mice suggesting channeling of fatty acids away from β-oxidation. Authors therefore postulate that the role of ALDH1L2 in the lipid metabolism explains why the loss of this enzyme is associated with neuro-cutaneous disease.
Sources: Literature
Mendeliome v0.6766 LRRC8A Bryony Thompson changed review comment from: A single case reported with a reciprocal translocation, t(9;20)(q33.2;q12), and demonstrated truncation of the LRRC8A gene. No other supporting evidence; to: A single case reported with a reciprocal translocation, t(9;20)(q33.2;q12), and demonstrated truncation of the LRRC8A gene. No other supporting evidence could be identified.
Mendeliome v0.6763 TAOK2 Bryony Thompson gene: TAOK2 was added
gene: TAOK2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TAOK2 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: TAOK2 were set to 28385331; 29467497
Phenotypes for gene: TAOK2 were set to Generalized verrucosis; abnormal T cell activation
Review for gene: TAOK2 was set to AMBER
Added comment: PMID: 28385331 - A single consanguineous family with generalized verrucosis and abnormal T cell activation, and a homozygous missense (p.R700C), with some assays on patient fibroblasts.
PMID: 29467497 - One of the several genes in the 16p11.2 microdeletion region associated with autism. Taok2 heterozygous and knockout mice had gene dosage-dependent impairments in cognition, anxiety, social interaction, brain size, and neural connectivity. 3 de novo variants and 3 predicted loss of function variants identified in 6 unrelated autism cases. 2 of the de novo variants have supporting functional assays, but 1 of them co-occurs in an individual with a CHD8 frameshift. 1 of the predicted loss of function variants was also identified in the unaffected father and sibling.
Sources: Literature
Mendeliome v0.6754 ZCCHC8 Bryony Thompson gene: ZCCHC8 was added
gene: ZCCHC8 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ZCCHC8 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ZCCHC8 were set to 31488579
Phenotypes for gene: ZCCHC8 were set to Pulmonary fibrosis
Review for gene: ZCCHC8 was set to AMBER
Added comment: A missense variant (P186L) segregates over 3 generations in a single family, and supporting in vitro assays and mouse model.
Sources: Literature
Mendeliome v0.6742 UBAP1 Zornitza Stark changed review comment from: PMID 31696996: Five unrelated families reported with childhood-onset HSP. A recurrent two‐base pair deletion (c.426_427delGA, p.K143Sfs*15) in the UBAP1 gene was found in four families, and a similar variant (c.475_476delTT, p.F159*) was detected in a fifth family. The variant was confirmed to be de novo in two families and inherited from an affected parent in two other families. RNA studies performed in lymphocytes from one patient with the de novo c.426_427delGA variant demonstrated escape of nonsense‐mediated decay of the UBAP1 mutant transcript, suggesting the generation of a truncated protein. Both variants identified are predicted to result in truncated proteins losing the capacity of binding to ubiquitinated proteins, hence appearing to exhibit a dominant‐negative effect on the normal function of the endosome‐specific endosomal sorting complexes required for the transport‐I complex.; to: PMID 31696996: Five unrelated families reported with childhood-onset HSP. A recurrent two‐base pair deletion (c.426_427delGA, p.K143Sfs*15) in the UBAP1 gene was found in four families, and a similar variant (c.475_476delTT, p.F159*) was detected in a fifth family. The variant was confirmed to be de novo in two families and inherited from an affected parent in two other families. RNA studies performed in lymphocytes from one patient with the de novo c.426_427delGA variant demonstrated escape of nonsense‐mediated decay of the UBAP1 mutant transcript, suggesting the generation of a truncated protein. Both variants identified are predicted to result in truncated proteins losing the capacity of binding to ubiquitinated proteins, hence appearing to exhibit a dominant‐negative effect on the normal function of the endosome‐specific endosomal sorting complexes required for the transport‐I complex.

PMID 32934340: additional 7 families. Median age of onset 10yrs.
Mendeliome v0.6725 COPB1 Zornitza Stark gene: COPB1 was added
gene: COPB1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: COPB1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: COPB1 were set to 33632302
Phenotypes for gene: COPB1 were set to Severe intellectual disability; variable microcephaly; cataracts
Review for gene: COPB1 was set to AMBER
Added comment: Two unrelated families, some supportive functional data.
Sources: Literature
Mendeliome v0.6699 KIDINS220 Zornitza Stark edited their review of gene: KIDINS220: Added comment: Note additional family with severe prenatal phenotype and bi-allelic variants reported in PMID 32909676, so total of 3 unrelated families for bi-allelic fetal phenotype.; Changed publications: 27005418, 32909676
Mendeliome v0.6699 KDM5C Zornitza Stark changed review comment from: Progressive lower limb spasticity is a feature of this ID syndrome. More than 5 unrelated families reported.; to: Intellectual disability, progressive lower limb spasticity, epilepsy and a number of other more variable features. Affected females reported PMID 32279304.
Mendeliome v0.6684 CYP2U1 Zornitza Stark edited their review of gene: CYP2U1: Added comment: SPG56 is an autosomal recessive neurodegenerative disorder characterized by early-onset progressive lower-limb spasticity resulting in walking difficulties. Upper limbs are often also affected, and some patients may have a subclinical axonal neuropathy. Onset is typically in the first decade. More than 5 unrelated families reported.; Changed rating: GREEN; Changed publications: 23176821, 32006740, 29034544
Mendeliome v0.6683 KLC4 Zornitza Stark gene: KLC4 was added
gene: KLC4 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: KLC4 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: KLC4 were set to 26423925
Phenotypes for gene: KLC4 were set to Complicated hereditary spastic paraplegia
Review for gene: KLC4 was set to RED
Added comment: Single family reported.
Sources: Expert Review
Mendeliome v0.6652 YY1AP1 Zornitza Stark commented on gene: YY1AP1: Grange syndrome: multiple arterial stenoses, severe early onset hypertension, fibromuscular dysplasia, variable penetrance of brachydactyly, syndactyly, bone fragility, and learning disabilities. Missense variant reported PMID: 31633303 with moyamoya like phenotype in adult case; fibroblasts suggest that the p.Pro360Leu variant decreases the stability of the YY1AP1 protein but most LOF. PMID: 30556293 non coding variants reported (intronic variants leading to aberrant splicing)
Mendeliome v0.6642 PLD1 Zornitza Stark changed review comment from: Cardiac valvular defect, developmental, MIM# 212093; neonatal cardiomyopathy; to: PMID 33645542: 31 individuals from 20 families reported, presenting predominantly with congenital cardiac valve defects and some with neonatal cardiomyopathy. p.I668F is a founder variant among Ashkenazi Jews (allele frequency of ~2%).
Mendeliome v0.6605 RPS15A Zornitza Stark gene: RPS15A was added
gene: RPS15A was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: RPS15A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RPS15A were set to 27909223
Phenotypes for gene: RPS15A were set to Diamond-Blackfan anemia 20, MIM# 618313
Review for gene: RPS15A was set to RED
Added comment: Single family reported.
Sources: Expert list
Mendeliome v0.6604 RPL35 Zornitza Stark gene: RPL35 was added
gene: RPL35 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: RPL35 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RPL35 were set to 28280134
Phenotypes for gene: RPL35 were set to Diamond-Blackfan anemia 19, MIM# 618312
Review for gene: RPL35 was set to RED
Added comment: Single family reported.
Sources: Expert list
Mendeliome v0.6567 EN1 Zornitza Stark changed review comment from: Three unrelated families reported (though two shown to be related by descent) with predominantly a skeletal phenotype comprising mesomelic shortening and deformation of the lower limbs due to severe hypoplasia of the tibia and fibula. This was accompanied by abnormalities of the digits of the hands and feet, with cutaneous and osseous syndactyly as well as dysplastic, missing, and/or volar nails. In addition, genitourinary anomalies were observed in some. Homozygous deletions identified in all, with the minimal deleted region being a 27-kb interval (chr2: 118,561,492-118,589,320) located approximately 300 kb upstream of the EN1 gene. Mouse model recapitulated the phenotype.
Sources: Literature; to: Three unrelated families reported (though two shown to be related by descent) with predominantly a skeletal phenotype comprising mesomelic shortening and deformation of the lower limbs due to severe hypoplasia of the tibia and fibula. This was accompanied by abnormalities of the digits of the hands and feet, with cutaneous and osseous syndactyly as well as dysplastic, missing, and/or volar nails. In addition, genitourinary anomalies were observed in some. Homozygous deletions identified in all, with the minimal deleted region being a 27-kb interval (chr2: 118,561,492-118,589,320) located approximately 300 kb upstream of the EN1 gene. Mouse model recapitulated the phenotype.

An additional fourth individual had cerebellar hypoplasia in addition to the skeletal phenotype, and a bi-allelic LoF variant.
Sources: Literature
Mendeliome v0.6566 EN1 Zornitza Stark gene: EN1 was added
gene: EN1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: EN1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: EN1 were set to 33568816
Phenotypes for gene: EN1 were set to ENDOVE syndrome, limb-only type, MIM# 619217
Review for gene: EN1 was set to GREEN
Added comment: Three unrelated families reported (though two shown to be related by descent) with predominantly a skeletal phenotype comprising mesomelic shortening and deformation of the lower limbs due to severe hypoplasia of the tibia and fibula. This was accompanied by abnormalities of the digits of the hands and feet, with cutaneous and osseous syndactyly as well as dysplastic, missing, and/or volar nails. In addition, genitourinary anomalies were observed in some. Homozygous deletions identified in all, with the minimal deleted region being a 27-kb interval (chr2: 118,561,492-118,589,320) located approximately 300 kb upstream of the EN1 gene. Mouse model recapitulated the phenotype.
Sources: Literature
Mendeliome v0.6563 EEF2 Zornitza Stark edited their review of gene: EEF2: Added comment: Phenotype reported in PMID 33355653 is distinct from the adult-onset SCA reported in PMID: 23001565. Evidence for association with SCA remains limited.; Changed rating: GREEN; Changed publications: 33355653; Changed phenotypes: Neurodevelopmental disorder, macrocephaly, hydrocephalus
Mendeliome v0.6540 DLK1 Zornitza Stark gene: DLK1 was added
gene: DLK1 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: DLK1 was set to MONOALLELIC, autosomal or pseudoautosomal, maternally imprinted (paternal allele expressed)
Publications for gene: DLK1 were set to 28324015; 30462238
Phenotypes for gene: DLK1 were set to central precocious puberty
Review for gene: DLK1 was set to GREEN
Added comment: PMID: 30462238 "three frameshift mutations of DLK1 (p.Gly199Alafs*11, p.Val271Cysfs*14, and p.Pro160Leufs*50) in five women from three families with CPP. Segregation analysis was consistent with the maternal imprinting of DLK1". PMID: 28324015 single large family, only affected females, central precocious puberty all carrying paternally inherited LOF variant (del/dup of 5'UTR and exon 1) absent DLK1 expression in all affected. Unclear if males affected as none reported to date.
Sources: Expert Review
Mendeliome v0.6538 EIF5A Zornitza Stark gene: EIF5A was added
gene: EIF5A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: EIF5A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: EIF5A were set to 33547280
Phenotypes for gene: EIF5A were set to Intellectual disability; microcephaly; dysmorphism
Review for gene: EIF5A was set to GREEN
Added comment: 7 unrelated individuals reported with de novo variants in this gene and variable combinations of developmental delay, microcephaly, micrognathia and dysmorphism.
Sources: Literature
Mendeliome v0.6536 POLRMT Zornitza Stark gene: POLRMT was added
gene: POLRMT was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: POLRMT was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: POLRMT were set to 33602924
Phenotypes for gene: POLRMT were set to Mitochondrial disorder; intellectual disability; hypotonia
Review for gene: POLRMT was set to GREEN
Added comment: 8 individuals from 7 families reported. 5 families with bi-allelic variants and 2 with heterozygous variants. Affected individuals presented with global developmental delay, hypotonia, short stature, and speech/intellectual disability in childhood; one subject displayed an indolent progressive external ophthalmoplegia phenotype.
Sources: Literature
Mendeliome v0.6531 PERP Zornitza Stark edited their review of gene: PERP: Added comment: Four families reported with heterozygous variants and Olmsted syndrome-2 (OLMS2), which is characterised by mutilating hyperkeratotic skin lesions, primarily on the palms and soles, but also extending onto dorsal surfaces of the hands and feet and distal extremities. The lesions are progressive, becoming thicker with verrucous fissures on the palms and soles over time. In addition, affected individuals exhibit perioral hyperkeratosis, and may have lesions around other orifices as well, such as the nostrils, perineum, and anus. Most patients also have hyperkeratotic nails and light-colored woolly hair.

Two families reported with bi-allelic variants and Erythrokeratodermia variabilis et progressiva-7 (EKVP7), which is characterised by palmoplantar keratoderma that extends to the dorsal surface of the hands and feet (transgrediens), as well as erythematous annular skin lesions. Pruritis, woolly hair, and dystrophic nails may also be present.; Changed rating: GREEN; Changed publications: 31898316, 30321533, 31361044; Changed phenotypes: Olmsted syndrome 2, MIM# 619208, Erythrokeratodermia variabilis et progressiva 7, MIM# 619209; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.6513 SPTAN1 Zornitza Stark changed review comment from: At least 4 unrelated families reported.; to: At least 4 unrelated families reported with DEE phenotype.
Mendeliome v0.6510 PSAP Zornitza Stark changed review comment from: Well established gene-disease association. Phenotype expansion with early-onset PD reported.; to: Well established gene-disease association for bi-allelic variants. Early-onset PD reported with mono-allelic variants.
Mendeliome v0.6508 PSAP Zornitza Stark changed review comment from: Well established gene-disease association. Phenotype expansion reported with early-onset PD reported.; to: Well established gene-disease association. Phenotype expansion with early-onset PD reported.
Mendeliome v0.6494 SPTAN1 Melanie Marty changed review comment from: 13 affected individuals from 4 families reported (nonsense variants) with AD distal hereditary motor neuropathy. Variable penetrance was noted and phenotype severity differs greatly between patients; to: 13 affected individuals from 4 families reported (nonsense variants) with AD distal hereditary motor neuropathy. Variable penetrance was noted and phenotype severity differs greatly between patients. Functional studies show NMD and reduced protein levels in patient cells.
Mendeliome v0.6467 ANKZF1 Bryony Thompson gene: ANKZF1 was added
gene: ANKZF1 was added to Mendeliome. Sources: Other
Mode of inheritance for gene: ANKZF1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ANKZF1 were set to 28302725
Phenotypes for gene: ANKZF1 were set to Infantile-onset inflammatory bowel disease
Review for gene: ANKZF1 was set to AMBER
Added comment: Two unrelated cases (1 homozygous and 1 compound heterozygous), and supporting in vitro and yeast assays indicating that loss-of-function mutations in ANKZF1 result in deregulation of mitochondrial integrity.
Sources: Other
Mendeliome v0.6465 ANGPT1 Bryony Thompson gene: ANGPT1 was added
gene: ANGPT1 was added to Mendeliome. Sources: Other
Mode of inheritance for gene: ANGPT1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ANGPT1 were set to 28601681; 24852101; 30689269; 10617467; 8980224
Phenotypes for gene: ANGPT1 were set to Hereditary angioedema
Review for gene: ANGPT1 was set to AMBER
Added comment: A missense variant (A119S) identified in 4 affected individuals in a single family. Supportive data in patient cells, functional assays of the variant, and animal models (both overexpression and null) for the gene.
Sources: Other
Mendeliome v0.6463 CLTCL1 Bryony Thompson changed review comment from: PMID: 26068709 - Three siblings in a single consanguineous family with congenital insensitivity to pain, inability to feel touch, and cognitive delay and a homozygous rare missense variant (Glu330Lys - no homozygotes in gnomAD v2.1). In vitro functional assays of the variant suggested a deleterious effect on the protein. Additionally cellular assays suggested a role for the gene in neural crest development and in the genesis of pain and touch sensing neurons.

PMID: 29402896 - more in depth functional assays and proteomic analyses suggesting a role for the protein in regulating sensory neuron differentiation in the human peripheral system

Other reports of associations with limited evidence:
PMID: 22511880 - Identified as a candidate gene in an autism study, but the homozygous variant (reported as R125C, but actually R1165C) has 40 homozygotes in gnomAD v2.1. And many of the other compound heterozygous candidate variants in the study are too common in gnomAD v2.1, with many homozygotes present. The missense reported in the pain insensitivity family Glu330Lys was reported with another rare missense variant (Glu1310Lys) in one of the autism cases, but no other phenotype information was provided.

PMID: 31354784 - a single case with infantile spasm reported with compound het missense (Met1316Val & Arg1165Cys), but both are very common in gnomAD v2.1 with 33,000 and 40 homozygotes, respectively.
Sources: Literature; to: PMID: 26068709 - Three siblings in a single consanguineous family with congenital insensitivity to pain, inability to feel touch, and cognitive delay and a homozygous rare missense variant (Glu330Lys - no homozygotes in gnomAD v2.1). In vitro functional assays of the variant suggested a deleterious effect on the protein. Additionally cellular assays suggested a role for the gene in neural crest development and in the genesis of pain and touch sensing neurons.

PMID: 29402896 - more in depth functional assays and proteomic analyses suggesting a role for the protein in regulating sensory neuron differentiation in the human peripheral system.

Other reports of associations with limited evidence:
PMID: 22511880 - Identified as a candidate gene in an autism study, but the homozygous variant (reported as R125C, but actually R1165C) has 40 homozygotes in gnomAD v2.1. And many of the other compound heterozygous candidate variants in the study are too common in gnomAD v2.1, with many homozygotes present. The missense reported in the pain insensitivity family Glu330Lys was reported with another rare missense variant (Glu1310Lys) in one of the autism cases, but no other phenotype information was provided.

PMID: 31354784 - a single case with infantile spasm reported with compound het missense (Met1316Val & Arg1165Cys), but both are very common in gnomAD v2.1 with 33,000 and 40 homozygotes, respectively.
Sources: Literature
Mendeliome v0.6463 CLTCL1 Bryony Thompson gene: CLTCL1 was added
gene: CLTCL1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CLTCL1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CLTCL1 were set to 26068709; 29402896; 22511880; 31354784
Phenotypes for gene: CLTCL1 were set to Congenital insensitivity to pain
Review for gene: CLTCL1 was set to AMBER
Added comment: PMID: 26068709 - Three siblings in a single consanguineous family with congenital insensitivity to pain, inability to feel touch, and cognitive delay and a homozygous rare missense variant (Glu330Lys - no homozygotes in gnomAD v2.1). In vitro functional assays of the variant suggested a deleterious effect on the protein. Additionally cellular assays suggested a role for the gene in neural crest development and in the genesis of pain and touch sensing neurons.

PMID: 29402896 - more in depth functional assays and proteomic analyses suggesting a role for the protein in regulating sensory neuron differentiation in the human peripheral system

Other reports of associations with limited evidence:
PMID: 22511880 - Identified as a candidate gene in an autism study, but the homozygous variant (reported as R125C, but actually R1165C) has 40 homozygotes in gnomAD v2.1. And many of the other compound heterozygous candidate variants in the study are too common in gnomAD v2.1, with many homozygotes present. The missense reported in the pain insensitivity family Glu330Lys was reported with another rare missense variant (Glu1310Lys) in one of the autism cases, but no other phenotype information was provided.

PMID: 31354784 - a single case with infantile spasm reported with compound het missense (Met1316Val & Arg1165Cys), but both are very common in gnomAD v2.1 with 33,000 and 40 homozygotes, respectively.
Sources: Literature
Mendeliome v0.6456 ALPI Zornitza Stark changed review comment from: Third family reported 2020, PMID 32084423.; to: Family reported 2020, PMID 32084423 is actually already previously reported.
Mendeliome v0.6455 NMNAT2 Bryony Thompson gene: NMNAT2 was added
gene: NMNAT2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NMNAT2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NMNAT2 were set to 31132363; 25271157; 20126265
Phenotypes for gene: NMNAT2 were set to polyneuropathy; erythromelalgia
Review for gene: NMNAT2 was set to AMBER
Added comment: A single family with siblings with a homozygous variant that confers a partial loss of function. Strong supporting functional evidence that the gene plays a key role in axonal survival.
Sources: Literature
Mendeliome v0.6441 ALPI Zornitza Stark edited their review of gene: ALPI: Added comment: Third family reported 2020, PMID 32084423.; Changed rating: GREEN; Changed publications: 29567797, 32084423
Mendeliome v0.6414 ARSG Bryony Thompson Added comment: Comment on list classification: 2 additional families reported, upgraded to green
Mendeliome v0.6400 PMVK Zornitza Stark gene: PMVK was added
gene: PMVK was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: PMVK was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PMVK were set to 26202976
Phenotypes for gene: PMVK were set to Porokeratosis 1, multiple types, MIM# 175800
Review for gene: PMVK was set to GREEN
Added comment: At least 9 individuals reported.
Sources: Expert Review
Mendeliome v0.6398 MVD Zornitza Stark gene: MVD was added
gene: MVD was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MVD was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MVD were set to 30942823; 33491095
Phenotypes for gene: MVD were set to Porokeratosis 7, multiple types, MIM# 614714
Review for gene: MVD was set to GREEN
Added comment: Porokeratoses are a heterogeneous group of keratinization disorders. For linear porokeratosis and disseminated superficial actinic porokeratosis, a heterozygous pathogenic germline variant in a mevalonate pathway gene and a postzygotic second hit mutation present in affected skin have been shown to be the patho-genetic mechanism for the development of the lesions. At least 5 individuals reported.
Sources: Expert list
Mendeliome v0.6394 SHROOM3 Zornitza Stark gene: SHROOM3 was added
gene: SHROOM3 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: SHROOM3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SHROOM3 were set to 32621286
Phenotypes for gene: SHROOM3 were set to Anencephaly; cleft lip and palate
Review for gene: SHROOM3 was set to AMBER
Added comment: Animal model and other functional data link SHROOM3 to neural tube development. Single family reported with bi-allelic LoF in a fetus with anencephaly and CL/P.
Sources: Expert Review
Mendeliome v0.6377 ITPR1 Zornitza Stark changed review comment from: Gillespie syndrome is usually diagnosed in the first year of life by the presence of fixed dilated pupils in a hypotonic infant. Affected individuals have a characteristic form of iris hypoplasia in which the pupillary border of the iris exhibits a scalloped or 'festooned' edge, with iris strands extending onto the anterior lens surface at regular intervals. The key extraocular features of Gillespie syndrome are congenital hypotonia, progressive cerebellar hypoplasia, and ataxia, as well as variable cognitive impairment that is usually mild. Multiple families reported with bi-allelic or de novo heterozygous variants.; to: Gillespie syndrome: usually diagnosed in the first year of life by the presence of fixed dilated pupils in a hypotonic infant. Affected individuals have a characteristic form of iris hypoplasia in which the pupillary border of the iris exhibits a scalloped or 'festooned' edge, with iris strands extending onto the anterior lens surface at regular intervals. The key extraocular features of Gillespie syndrome are congenital hypotonia, progressive cerebellar hypoplasia, and ataxia, as well as variable cognitive impairment that is usually mild. Multiple families reported with bi-allelic or de novo heterozygous variants.
Mendeliome v0.6320 NCOA3 Eleanor Williams gene: NCOA3 was added
gene: NCOA3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NCOA3 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: NCOA3 were set to 33326993
Phenotypes for gene: NCOA3 were set to non-syndromic hearing loss
Review for gene: NCOA3 was set to RED
Added comment: PMID: 33326993 - Salazar da Silva et al 2020 - report a 5 generation Brazilian family with 15 individuals with non-syndromic, bilateral and progressive hearing loss. Using linkage analysis and then exome sequencing they identified a heterozygous variant in NCOA3 (NM_181659, c.2810C > G; p.Ser937Cys) that was found in the 7 analysed affected individuals. It was also found in 4 unaffected individuals but they are within the range of onset of hearing loss observed in the family. Expression of nco3 was found in the inner ear of mice and zebrafish. ncoa3-/- zebrafish showed subtle alterations in cartilage, mineral density and abnormal adult swimming behaviour, which may suggest the mechanism of pathogenicity.
Sources: Literature
Mendeliome v0.6311 OTUD5 Zornitza Stark edited their review of gene: OTUD5: Added comment: PMID 33523931: Another 10 individuals from 7 families reported, promote to Green. X-linked multiple congenital anomalies-neurodevelopmental syndrome (MCAND) is an X-linked recessive congenital multisystemic disorder characterized by poor growth, global developmental delay with impaired intellectual development, and variable abnormalities of the cardiac, skeletal, and genitourinary systems. Most affected individuals also have hypotonia and dysmorphic craniofacial features. Brain imaging typically shows enlarged ventricles and thin corpus callosum; some have microcephaly, whereas others have hydrocephalus. The severity of the disorder is highly variable, ranging from death in early infancy to survival into the second or third decade.; Changed rating: GREEN; Changed publications: 33131077, 33523931; Changed phenotypes: Multiple congenital anomalies-neurodevelopmental syndrome, X-linked, MIM# 301056
Mendeliome v0.6301 CD320 Bryony Thompson Phenotypes for gene: CD320 were changed from to Methylmalonic aciduria, transient, due to transcobalamin receptor defect MIM#613646; Disorders of cobalamin absorption, transport and metabolism
Mendeliome v0.6298 CD320 Bryony Thompson reviewed gene: CD320: Rating: ; Mode of pathogenicity: None; Publications: 29663633, 27604308, 30303736; Phenotypes: Methylmalonic aciduria, transient, due to transcobalamin receptor defect MIM#613646, Disorders of cobalamin absorption, transport and metabolism; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.6297 SHPK Bryony Thompson gene: SHPK was added
gene: SHPK was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SHPK was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SHPK were set to 25647543; 27604308
Phenotypes for gene: SHPK were set to Sedoheptulokinase deficiency MIM#617213
Review for gene: SHPK was set to AMBER
Added comment: 2 unrelated cases reported, with elevated excretion of erythritol and sedoheptulose, and each had a homozygous nonsense variant. The first patient presented with neonatal cholestasis, hypoglycemia, and anemia, while the second patient presented with congenital arthrogryposis multiplex, multiple contractures, and dysmorphisms. Due to inconsistency in phenotypes, likely SHPK deficiency is a benign disorder.
Sources: Literature
Mendeliome v0.6295 PNLIP Bryony Thompson gene: PNLIP was added
gene: PNLIP was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PNLIP was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PNLIP were set to 31977950; 25862608; 24262094; 27604308
Phenotypes for gene: PNLIP were set to Pancreatic lipase deficiency MIM#614338; disorders of lipid and lipoprotein metabolism
Review for gene: PNLIP was set to GREEN
Added comment: 4 cases from 2 unrelated families, with supporting biochemical assays in patient cells and cellular-based assays. The cases have decreased absorption of dietary fat and greasy voluminous stools, but apparent normal development and an overall good state of health.
Sources: Literature
Mendeliome v0.6294 TDO2 Zornitza Stark gene: TDO2 was added
gene: TDO2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: TDO2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TDO2 were set to 28285122; 27604308
Phenotypes for gene: TDO2 were set to Hypertryptophanemia MIM#600627; Disorders of histidine, tryptophan or lysine metabolism
Review for gene: TDO2 was set to RED
Added comment: Single case reported, biochemical phenotype of hypertryptophanemia and hyperserotoninemia does not appear to have significant clinical consequences
Sources: Expert list
Mendeliome v0.6289 SLC36A2 Zornitza Stark Phenotypes for gene: SLC36A2 were changed from to Hyperglycinuria MIM#138500; Iminoglycinuria, digenic MIM#242600; Disorders of amino acid transport
Mendeliome v0.6285 SLC36A2 Zornitza Stark reviewed gene: SLC36A2: Rating: AMBER; Mode of pathogenicity: None; Publications: 19033659, 26141664, 27604308; Phenotypes: Hyperglycinuria MIM#138500, Iminoglycinuria, digenic MIM#242600, Disorders of amino acid transport; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.6266 DCXR Zornitza Stark gene: DCXR was added
gene: DCXR was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: DCXR was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: DCXR were set to 22042873
Phenotypes for gene: DCXR were set to Pentosuria MIM#260800; Disorders of pentose metabolism
Review for gene: DCXR was set to AMBER
Added comment: At least 9 Ashkenazi Jewish probands reported. The condition is clinically benign.
Sources: Expert list
Mendeliome v0.6228 SLC46A1 Zornitza Stark changed review comment from: Hereditary folate malabsorption is an autosomal recessive disorder characterized by signs and symptoms of folate deficiency that appear within a few months after birth. Infants exhibit low blood and cerebrospinal fluid folate levels with megaloblastic anemia, diarrhea, immune deficiency, infections, and neurologic deficits. Treatment with folate supplementation results in resolution of the signs and symptoms. The disorder is caused by impaired intestinal folate absorption and impaired transport of folate into the central nervous system. More than 5 unrelated families reported.; to: Hereditary folate malabsorption is an autosomal recessive disorder characterized by signs and symptoms of folate deficiency that appear within a few months after birth. Infants exhibit low blood and cerebrospinal fluid folate levels with megaloblastic anemia, diarrhoea, immune deficiency, infections, and neurologic deficits. Treatment with folate supplementation results in resolution of the signs and symptoms. The disorder is caused by impaired intestinal folate absorption and impaired transport of folate into the central nervous system. More than 5 unrelated families reported.
Mendeliome v0.6215 SIX1 Zornitza Stark changed review comment from: DEFINITIVE by ClinGen. Variable expressivity, some families reported with isolated deafness, however this likely represents a spectrum rather than a separate disorder.; to: Deafness/BOS: DEFINITIVE by ClinGen. Variable expressivity, some families reported with isolated deafness, however this likely represents a spectrum rather than a separate disorder.
Mendeliome v0.6211 BMP7 Zornitza Stark changed review comment from: Non-syndromic metopic craniosynostosis: PMID 32266521 reports rs6127972 as a susceptibility SNP for non-syndromic metopic craniosynostosis

CAKUT: PMID 24429398 1 family with mouse model in large cohort of CAKUT.
Sources: Literature; to: Non-syndromic metopic craniosynostosis: PMID 32266521 reports rs6127972 as a susceptibility SNP for non-syndromic metopic craniosynostosis

CAKUT: PMID 24429398 1 family with mouse model in large cohort of CAKUT.
Sources: Literature

PMID 33434492: Two individuals with likely deleterious variants identified in a cohort of individuals with MRKHS.
Mendeliome v0.6207 WBP11 Eleanor Williams gene: WBP11 was added
gene: WBP11 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: WBP11 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: WBP11 were set to 33276377
Phenotypes for gene: WBP11 were set to malformation syndrome affecting the cardiac, skeletal, gastrointestinal and renal systems
Review for gene: WBP11 was set to GREEN
Added comment: PMID: 33276377 - Martin et al 2020 - report 13 affected individuals from 7 unrelated families identified through various different cohort analysis (vertebral malformation, renal hypodysplasia, syndromic esophageal atresia, multiple congenital anomalies) in whom a WBP11 heterozygous variant is considered the top causative candidate. 5 identified variants were predicted to be protein truncating whilst the 6th was a missense variant. All variants are absent from population databases. In family 1, the variant was inherited from the apparently unaffected mother, indicating reduced penetrance, and phenotypic variance within families was observed. Phenotypes covered cardiac, vertebral, renal, craniofacial and gastrointestinal systems. At least at least 5 of the patients affected had features in three component organs so can be considered a VACTERL association. Wbp11 heterozygous null mice had vertebral and renal anomalies.
Sources: Literature
Mendeliome v0.6193 NFS1 Zornitza Stark edited their review of gene: NFS1: Added comment: Second paper reporting another family (consanguineous) with three affected children and supportive functional data. Homozygous for the same missense variant as reported in the 2014 paper - this family of Christian Arab descent; the family in the previous report of Mennonite background. Suggests this is a mutation hotspot.; Changed rating: GREEN; Changed publications: 24498631, 33457206
Mendeliome v0.6192 SLC7A6OS Zornitza Stark gene: SLC7A6OS was added
gene: SLC7A6OS was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SLC7A6OS was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLC7A6OS were set to 33085104
Phenotypes for gene: SLC7A6OS were set to Progressive myoclonus epilepsy
Review for gene: SLC7A6OS was set to RED
Added comment: Two unrelated families reported with same homozygous splice site variant, shared haplotype (founder effect). Limited functional data.
Sources: Literature
Mendeliome v0.6190 TLR8 Zornitza Stark gene: TLR8 was added
gene: TLR8 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TLR8 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: TLR8 were set to 33512449
Phenotypes for gene: TLR8 were set to Immunodeficiency; bone marrow failure
Mode of pathogenicity for gene: TLR8 was set to Other
Review for gene: TLR8 was set to GREEN
Added comment: Six unrelated males reported with a phenotype comprising neutropaenia, infections, lymphoproliferation, humoral immune defects, and in some cases bone marrow failure. Three different variants reported, the variant was somatic in 5/6 individuals. GoF mechanism demonstrated.
Sources: Literature
Mendeliome v0.6187 BRWD1 Paul De Fazio gene: BRWD1 was added
gene: BRWD1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: BRWD1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: BRWD1 were set to 33389130
Phenotypes for gene: BRWD1 were set to Asthenoteratozoospermia, likely primary ciliary dyskinesia
Review for gene: BRWD1 was set to GREEN
gene: BRWD1 was marked as current diagnostic
Added comment: Biallelic missense variants reported in 3 unrelated individuals. Apart from asthenoteratozoospermia, all 3 had PCD or "PCD-likely" symptoms of re-occurring airway infections, bronchiectasis, and rhinosinusitis. One individual had situs inversus. Studies on cells from one indivdidual showed abnormal respiratory cilia structure. BRWD1 staining was absent from respiratory cilia in this individual (present in controls).

Rated Green as there are three unrelated individuals reported.
Sources: Literature
Mendeliome v0.6172 BCAT2 Bryony Thompson changed review comment from: A single case reported with compound heterozygous variants with functional studies demonstrating that the two variants resulted in decreased BCAT2 enzyme activity. Also, a null mouse model has a phenotype similar to human maple syrup urine disease.
Sources: NHS GMS; to: 6 cases from 5 unrelated families with homozygous or compound heterozygous variant, and supporting functional studies demonstrating decreased BCAT2 enzyme activity for some of the variants. Also, a null mouse model has a phenotype similar to human maple syrup urine disease.
Sources: NHS GMS
Mendeliome v0.6172 BCAT2 Bryony Thompson gene: BCAT2 was added
gene: BCAT2 was added to Mendeliome. Sources: NHS GMS
Mode of inheritance for gene: BCAT2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: BCAT2 were set to 14755340; 25653144
Phenotypes for gene: BCAT2 were set to Hypervalinemia or hyperleucine-isoleucinemia MIM#618850; disorder of branched-chain amino acid metabolism
Review for gene: BCAT2 was set to AMBER
Added comment: A single case reported with compound heterozygous variants with functional studies demonstrating that the two variants resulted in decreased BCAT2 enzyme activity. Also, a null mouse model has a phenotype similar to human maple syrup urine disease.
Sources: NHS GMS
Mendeliome v0.6171 CLRN2 Paul De Fazio gene: CLRN2 was added
gene: CLRN2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CLRN2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CLRN2 were set to 33496845
Phenotypes for gene: CLRN2 were set to Non-syndromic hearing loss
Review for gene: CLRN2 was set to AMBER
gene: CLRN2 was marked as current diagnostic
Added comment: Missense variant segregates with non-syndromic hearing loss in 3 members of a consanguineous family, two from one nuclear family and one from another. The variant was also shown to result in some transcripts being abnormally spliced, resulting in a premature stop codon.

Functional studies in zebrafish and mice show the gene plays an essential role in normal organization and maintenance of the auditory hair bundles, and for hearing function.

Rated Amber due to supporting functional studies in mice.
Sources: Literature
Mendeliome v0.6167 ENO1 Kristin Rigbye gene: ENO1 was added
gene: ENO1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ENO1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ENO1 were set to 32488097
Phenotypes for gene: ENO1 were set to Polymicrogyria
Review for gene: ENO1 was set to RED
Added comment: ENO1 identified as a polymicrogyria candidate gene from the smallest case of 1p36 duplication reported to date, in a 35yo F (onset at 8mo) presenting intellectual disability, microcephaly, epilepsy and perisylvian polymicrogyria. The duplication only encompassed 2 genes, ENO1 and RERE, and gene expression analysis performed using the patient cells revealed reduced expression, mimicking haploinsufficiency. Eno1 inactivation in rats was shown to cause a brain development defect. According to OMIM, ENO1 is deleted in glioblastoma, which is tolerated by the expression of ENO2.
Sources: Literature
Mendeliome v0.6165 CCDC186 Zornitza Stark gene: CCDC186 was added
gene: CCDC186 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CCDC186 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CCDC186 were set to 33259146
Phenotypes for gene: CCDC186 were set to Epileptic encephalopathy
Review for gene: CCDC186 was set to RED
Added comment: One individual reported with bi-allelic truncating variant and EE.
Sources: Literature
Mendeliome v0.6147 DCT Zornitza Stark gene: DCT was added
gene: DCT was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: DCT was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: DCT were set to 33100333
Phenotypes for gene: DCT were set to Oculocutaneous albinism, type VIII, MIM# 619165
Review for gene: DCT was set to GREEN
Added comment: Two unrelated families reported. Functional data including mouse model.
Sources: Expert list
Mendeliome v0.6141 NDUFC2 Zornitza Stark gene: NDUFC2 was added
gene: NDUFC2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: NDUFC2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NDUFC2 were set to 32969598
Phenotypes for gene: NDUFC2 were set to Mitochondrial complex I deficiency, nuclear type 36, MIM# 619170
Review for gene: NDUFC2 was set to AMBER
Added comment: Mitochondrial complex I deficiency nuclear type 36 (MC1DN36) is an autosomal recessive metabolic disorder characterized by global developmental delay, hypotonia, and failure to thrive apparent from infancy or early childhood. Affected individuals usually do not acquire ambulation, show progressive spasticity, and have impaired intellectual development with absent speech. More variable features may include pale optic discs, poor eye contact, seizures, and congenital heart defects. Laboratory studies show increased serum lactate; metabolic acidosis may occur during stress or infection. Brain imaging shows T2-weighted abnormalities in the basal ganglia and brainstem, consistent with a clinical diagnosis of Leigh syndrome. Two unrelated families reported, some functional data.
Sources: Expert list
Mendeliome v0.6133 DLX4 Zornitza Stark gene: DLX4 was added
gene: DLX4 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: DLX4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: DLX4 were set to 25954033; 29738288
Phenotypes for gene: DLX4 were set to Orofacial cleft 15, MIM# 616788
Review for gene: DLX4 was set to RED
Added comment: Single family reported and a SNP association study.
Sources: Expert list
Mendeliome v0.6119 FOXF1 Zornitza Stark changed review comment from: Congenital alveolar capillary dysplasia with misalignment of pulmonary veins (ACDMPV) is characterized histologically by failure of formation and ingrowth of alveolar capillaries that then do not make contact with alveolar epithelium, medial muscular thickening of small pulmonary arterioles with muscularization of the intraacinar arterioles, thickened alveolar walls, and anomalously situated pulmonary veins running alongside pulmonary arterioles and sharing the same adventitial sheath. Less common features include a reduced number of alveoli and a patchy distribution of the histopathologic changes. The disorder is associated with persistent pulmonary hypertension of the neonate and shows varying degrees of lability and severity. Affected infants present with respiratory distress resulting from pulmonary hypertension in the early postnatal period, and the disease is uniformly fatal within the newborn period. Additional features of ACDMPV include multiple congenital anomalies affecting the cardiovascular, gastrointestinal, genitourinary, and musculoskeletal systems, as well as disruption of the normal right-left asymmetry of intrathoracic or intraabdominal organs.; to: Congenital alveolar capillary dysplasia with misalignment of pulmonary veins (ACDMPV) is characterized histologically by failure of formation and ingrowth of alveolar capillaries that then do not make contact with alveolar epithelium, medial muscular thickening of small pulmonary arterioles with muscularization of the intraacinar arterioles, thickened alveolar walls, and anomalously situated pulmonary veins running alongside pulmonary arterioles and sharing the same adventitial sheath. Less common features include a reduced number of alveoli and a patchy distribution of the histopathologic changes. The disorder is associated with persistent pulmonary hypertension of the neonate and shows varying degrees of lability and severity. Affected infants present with respiratory distress resulting from pulmonary hypertension in the early postnatal period, and the disease is uniformly fatal within the newborn period. Additional features of ACDMPV include multiple congenital anomalies affecting the cardiovascular, gastrointestinal, genitourinary, and musculoskeletal systems, as well as disruption of the normal right-left asymmetry of intrathoracic or intraabdominal organs.

Over 50 families reported.
Mendeliome v0.6111 CYBRD1 Zornitza Stark gene: CYBRD1 was added
gene: CYBRD1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: CYBRD1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CYBRD1 were set to 15338274
Phenotypes for gene: CYBRD1 were set to Iron overload
Review for gene: CYBRD1 was set to RED
Added comment: Paucity of publications. One of the variants reported in PMID 15338274, p.Arg226His is present in over 1,000 hets in gnomad.
Sources: Expert list
Mendeliome v0.6109 BMP6 Zornitza Stark gene: BMP6 was added
gene: BMP6 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: BMP6 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: BMP6 were set to 26582087; 32464486
Phenotypes for gene: BMP6 were set to Iron overload, mild to moderate
Review for gene: BMP6 was set to GREEN
Added comment: More than 9 individuals reported with iron overload and variants in this gene.
Sources: Expert list
Mendeliome v0.6107 CREB3L3 Bryony Thompson gene: CREB3L3 was added
gene: CREB3L3 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: CREB3L3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CREB3L3 were set to 32580631; 29954705; 27982131; 27291420; 26427795; 21666694
Phenotypes for gene: CREB3L3 were set to Hyperlipidaemia; hypertriglyceridemia
Review for gene: CREB3L3 was set to AMBER
Added comment: PMID: 26427795 - a loss of function variant (c.359delG p.K120fsX20) was identified in 2 affected adult siblings and a 13 yo normotriglyceridemic daughter of one of the siblings.
PMID: 21666694 - Lipoprotein profiles of the families of 4 individuals with CREB3L3 nonsense mutations showed a significantly elevated mean plasma TG level in 11 mutation carriers compared with 5 non-carrier first-degree relatives (9.67 ± 4.70 vs. 1.66 ± 0.55 mM, P = 0.021, Wilcoxon test). 3 of those families have the same variant - Lys245GlufsTer130, which has 126 (281,946 alleles) hets in gnomAD v2.1.
PMID: 32580631 - case-control analysis of nonmonogenic severe hypertriglyceridemia cases (N=265) vs normolipidemic controls (N=477), identified 5 cases with LoF variants (3 of whom had the Lys245GlufsTer130 frameshift) and none in controls. OR 20.2 (95% CI 1.11–366.1) p = 0.002, adjusted p = 0.03.
The frequency of Lys245GlufsTer130 is higher than expected for a dominant disorder, but other loss of function variants have been identified. The gene may be associated with variable penetrance. There are multiple supporting null mouse models with hyperlipidaemia.
Sources: Expert list
Mendeliome v0.6105 GPIHBP1 Bryony Thompson gene: GPIHBP1 was added
gene: GPIHBP1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: GPIHBP1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GPIHBP1 were set to 17883852; 19304573; 20026666; 17403372
Phenotypes for gene: GPIHBP1 were set to Hyperlipoproteinemia, type 1D MIM#615947; familial chylomicronemia syndrome
Review for gene: GPIHBP1 was set to GREEN
gene: GPIHBP1 was marked as current diagnostic
Added comment: Well-established cause of familial chylomicronemia (see OMIM). Greater than 3 families reported and a supporting mouse model.
Sources: Expert list
Mendeliome v0.6035 SCAMP5 Zornitza Stark edited their review of gene: SCAMP5: Added comment: PMID 33390987: Four unrelated individuals reported with same de novo missense variant, p. Gly180Trp. The onset age of seizures was ranged from 6 to 15 months. Patients had different types of seizures, including focal seizures, generalized tonic-clonic seizures and tonic seizure. One patient showed typical autism spectrum disorder (ASD) symptoms. Electroencephalogram (EEG) findings presented as focal or multifocal discharges, sometimes spreading to generalization. Brain magnetic resonance imaging (MRI) abnormalities were present in each patient. Severe intellectual disability and language and motor developmental disorders were found in our patients, with all patients having poor language development and were nonverbal at last follow-up. All but one of the patients could walk independently in childhood, but the ability to walk independently in one patient had deteriorated with age. All patients had abnormal neurological exam findings, mostly signs of extrapyramidal system involvement. Dysmorphic features were found in 2/4 patients, mainly in the face and trunk.; Changed publications: 31439720, 33390987
Mendeliome v0.6028 CYLD Zornitza Stark Phenotypes for gene: CYLD were changed from Brooke-Spiegler syndrome, 605041; Cylindromatosis, familial, 132700; Trichoepithelioma, multiple familial, 1, 601606; Frontotemporal dementia and amyotrophic lateral sclerosis to Brooke-Spiegler syndrome, 605041; Cylindromatosis, familial, 132700; Trichoepithelioma, multiple familial, 1, 601606; Frontotemporal dementia and/or amytrophic lateral sclerosis 8, MIM# 619132
Mendeliome v0.6027 CYLD Zornitza Stark reviewed gene: CYLD: Rating: AMBER; Mode of pathogenicity: None; Publications: ; Phenotypes: Frontotemporal dementia and/or amytrophic lateral sclerosis 8, MIM# 619132; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.6018 CELF2 Zornitza Stark gene: CELF2 was added
gene: CELF2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CELF2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CELF2 were set to 33131106
Phenotypes for gene: CELF2 were set to Developmental and epileptic encephalopathy
Review for gene: CELF2 was set to GREEN
Added comment: Five unrelated individuals reported. Four with de novo variants, and one inherited from a mosaic mother. Notably, all identified variants, except for c.272‐1G>C, were clustered within 20 amino acid residues of the C‐terminus, which might be a nuclear localization signal.
Sources: Literature
Mendeliome v0.6016 FGF13 Zornitza Stark gene: FGF13 was added
gene: FGF13 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FGF13 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: FGF13 were set to 33245860
Phenotypes for gene: FGF13 were set to Intellectual disability; epilepsy
Mode of pathogenicity for gene: FGF13 was set to Other
Review for gene: FGF13 was set to GREEN
Added comment: Two sibling pairs and three unrelated males reported who presented in infancy with intractable focal seizures and severe developmental delay.

The variants were located in the N-terminal domain of the A isoform of FGF13/FHF2 (FHF2A). The X-linked FHF2 gene (also known as FGF13) has alternative first exons which produce multiple protein isoforms that differ in their N-terminal sequence. The variants were located at highly conserved residues in the FHF2A inactivation particle that competes with the intrinsic fast inactivation mechanism of Nav channels. Functional characterization of mutant FHF2A co-expressed with wild-type Nav1.6 (SCN8A) revealed that mutant FHF2A proteins lost the ability to induce rapid-onset, long-term blockade of the channel while retaining pro-excitatory properties. These gain-of-function effects are likely to increase neuronal excitability consistent with the epileptic potential of FHF2 variants.
Sources: Literature
Mendeliome v0.6014 SCUBE3 Zornitza Stark changed review comment from: Eighteen affected individuals from nine unrelated families reported with a consistent phenotype characterised by reduced growth, skeletal features, distinctive craniofacial appearance, and dental anomalies.
Sources: Literature; to: Eighteen affected individuals from nine unrelated families reported with a consistent phenotype characterised by reduced growth, skeletal features, distinctive craniofacial appearance, and dental anomalies. Mouse model recapitulated phenotype.
Sources: Literature
Mendeliome v0.6014 SCUBE3 Zornitza Stark gene: SCUBE3 was added
gene: SCUBE3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SCUBE3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SCUBE3 were set to 33308444
Phenotypes for gene: SCUBE3 were set to Short stature; skeletal abnormalities; craniofacial abnormalities; dental anomalies
Review for gene: SCUBE3 was set to GREEN
Added comment: Eighteen affected individuals from nine unrelated families reported with a consistent phenotype characterised by reduced growth, skeletal features, distinctive craniofacial appearance, and dental anomalies.
Sources: Literature
Mendeliome v0.6002 RABL2A Eleanor Williams gene: RABL2A was added
gene: RABL2A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RABL2A was set to Unknown
Publications for gene: RABL2A were set to 33075816
Phenotypes for gene: RABL2A were set to male infertility; ciliopathy
Review for gene: RABL2A was set to RED
Added comment: PMID: 33075816 - Ding et al 2020 - with the aim of identifying variants that affect male fertility, the authors report on mice expressing two RABL2A SNPs found to be rare (MAF between 2% and 0.02% in gnomAD, with a deleterious prediction from SIFT and PolyPhen-2, and to affect protein stability. Mice homozygous for these variants (p.L119F and p.V158F) were found to be show ciliopathy-associated disorders including male infertility, early growth retardation, excessive weight gain in adulthood, heterotaxia, pre-axial polydactyly, neural tube defects and hydrocephalus.
Sources: Literature
Mendeliome v0.5947 SLC51B Zornitza Stark gene: SLC51B was added
gene: SLC51B was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: SLC51B was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLC51B were set to 28898457
Phenotypes for gene: SLC51B were set to Congenital diarrhoea; Cholestasis
Review for gene: SLC51B was set to RED
Added comment: Two siblings reported with homozygous LOF variant in this gene and congenital diarrhoea/cholestasis.
Sources: Expert Review
Mendeliome v0.5914 DPH2 Paul De Fazio changed review comment from: One family reported (PMID:32576952) with biallelic (one missense, one nonsense) variants in DPH2, with phenotype similar to DPH1 deficiency.

Another family was previously reported with biallelic nonsense variants (PMID:27421267) with a comparable phenotype, this family also has biallelic variants in KALRN and the authors thought those variants more likely causative.

In vitro functional assays support reduced diphthamide synthesis activity for the variants identified in PMID:32576952.
Sources: Literature; to: One 19 month old reported (PMID:32576952) with biallelic (one missense, one nonsense) variants in DPH2, with phenotype similar to DPH1 deficiency (gross motor delay, not walking, fine motor and expressive language delays, macrocephaly)

Another family (sibs) was previously reported with biallelic nonsense variants (PMID:27421267) with a comparable phenotype, this family also has biallelic variants in KALRN and the authors thought those variants more likely causative. Patients had ID and microcephaly (in contrast to the 19 month old above).

In vitro functional assays support reduced diphthamide synthesis activity for the variants identified in PMID:32576952.
Sources: Literature
Mendeliome v0.5914 DPH2 Paul De Fazio gene: DPH2 was added
gene: DPH2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DPH2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: DPH2 were set to 32576952; 27421267
Phenotypes for gene: DPH2 were set to Diphthamide-deficiency syndrome
Review for gene: DPH2 was set to AMBER
gene: DPH2 was marked as current diagnostic
Added comment: One family reported (PMID:32576952) with biallelic (one missense, one nonsense) variants in DPH2, with phenotype similar to DPH1 deficiency.

Another family was previously reported with biallelic nonsense variants (PMID:27421267) with a comparable phenotype, this family also has biallelic variants in KALRN and the authors thought those variants more likely causative.

In vitro functional assays support reduced diphthamide synthesis activity for the variants identified in PMID:32576952.
Sources: Literature
Mendeliome v0.5914 FBRSL1 Elena Savva gene: FBRSL1 was added
gene: FBRSL1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FBRSL1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: FBRSL1 were set to PMID: 32424618
Phenotypes for gene: FBRSL1 were set to Malformation and intellectual disability syndrome
Review for gene: FBRSL1 was set to GREEN
Added comment: Three children with de novo PTCs that escape NMD, and an overlapping syndromic phenotype with respiratory insufficiency, postnatal growth restriction, microcephaly, global developmental delay and other malformations. 2/3 had heart defects, cleft palate and hearing impairement.
Supported by Xenopus oocyte functional studies
Sources: Literature
Mendeliome v0.5908 CPA6 Zornitza Stark Phenotypes for gene: CPA6 were changed from to Epilepsy, familial temporal lobe, 5, MIM#614417; Febrile seizures, familial, 11, MIM#614418
Mendeliome v0.5904 CPA6 Zornitza Stark edited their review of gene: CPA6: Added comment: Homozygous p.A270V variant reported in four siblings with Febrile seizures, familial, 11 (MIM 614418)(PMID:21922598), some functional data. Present in gnomad as hets but no homs. Also note one of the heterozygous individuals initially reported was subsequently found to have a second missense variant, PMID 23105115.

Disputed association between mono allelic variants and disease: variants reported have high frequency in gnomad, not in keeping with Mendelian disorder.; Changed rating: AMBER; Changed mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.5844 FZD5 Zornitza Stark gene: FZD5 was added
gene: FZD5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FZD5 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: FZD5 were set to 32737437; 26908622
Phenotypes for gene: FZD5 were set to Coloboma
Review for gene: FZD5 was set to GREEN
Added comment: Four unrelated families reported.
Sources: Literature
Mendeliome v0.5819 RARA Zornitza Stark edited their review of gene: RARA: Added comment: Single case report of de novo missense variant in association with syndromic coloboma.; Changed publications: 31343737; Changed phenotypes: Syndromic chorioretinal coloboma
Mendeliome v0.5807 MAB21L2 Zornitza Stark changed review comment from: More than 7 unrelated families reported with microphthalmia/anophthalmia/coloboma and rhizomelia. Two individuals with the c.151C > T (p.Arg51Cys) variant also had ID. One family reported with eye phenotype and bi-allelic missense variants, LIMITED evidence for bi-allelic disease. Three different animal models support gene-disease association.; to: More than 7 unrelated families reported with microphthalmia/anophthalmia/coloboma and rhizomelia. Several individuals with the c.151C > T (p.Arg51Cys) variant also had ID. One family reported with eye phenotype and bi-allelic missense variants, LIMITED evidence for bi-allelic disease. Three different animal models support gene-disease association.
Mendeliome v0.5799 LOXL3 Zornitza Stark gene: LOXL3 was added
gene: LOXL3 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: LOXL3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: LOXL3 were set to 30362103; 25663169
Phenotypes for gene: LOXL3 were set to Stickler syndrome
Review for gene: LOXL3 was set to AMBER
Added comment: Two unrelated families reported with homozygous missense variants, mouse model supports gene-disease association.
Sources: Expert Review
Mendeliome v0.5756 SEC23B Zornitza Stark changed review comment from: Over 20 families reported.; to: Bi-allelic variants and anaemia: Over 20 families reported.

Mono-allelic variants: three families reported with heterozygous missense variants, however note these are present in gnomad. In the case of one of the variants, >2,000 hets. LIMITED evidence for disease association.
Mendeliome v0.5739 TBL1X Elena Savva gene: TBL1X was added
gene: TBL1X was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TBL1X was set to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Publications for gene: TBL1X were set to PMID: 27603907
Phenotypes for gene: TBL1X were set to Hypothyroidism, congenital, nongoitrous, 8 MIM#301033
Review for gene: TBL1X was set to GREEN
Added comment: PMID: 27603907 - mostly males but also a female diagnosed with central hypothyroidism. 6 families reported (5/6 missense, 1/6 splice). Supported by functional studies ->LOF

All mutations were located in the highly conserved WD40-repeat domains.
Sources: Literature
Mendeliome v0.5718 PGM3 Zornitza Stark changed review comment from: Phosphoglucomutase 3 (PGM3) protein catalyzes the conversion of N-acetyl-d-glucosamine-6-phosphate (GlcNAc-6-P) to N-acetyl-d-glucosamine-1-phosphate (GlcNAc-1-P), which is required for the synthesis of uridine diphosphate N-acetylglucosamine (UDP-GlcNAc) an important precursor for protein glycosylation. Bi-allelic variants in this gene are associated with a primary immunodeficiency syndrome characterised by onset of recurrent infections, usually respiratory or cutaneous, in early childhood. Immune workup usually shows neutropenia, lymphopenia, eosinophilia, and increased serum IgE or IgA. Neutrophil chemotactic defects have also been reported. Infectious agents include bacteria, viruses, and fungi. Many patients develop atopic dermatitis, eczema, and other signs of autoinflammation. Affected individuals may also show developmental delay or cognitive impairment of varying severity. More than 10 unrelated families reported.; to: Phosphoglucomutase 3 (PGM3) protein catalyzes the conversion of N-acetyl-d-glucosamine-6-phosphate (GlcNAc-6-P) to N-acetyl-d-glucosamine-1-phosphate (GlcNAc-1-P), which is required for the synthesis of uridine diphosphate N-acetylglucosamine (UDP-GlcNAc) an important precursor for protein glycosylation.

Bi-allelic variants in this gene are associated with a primary immunodeficiency syndrome characterised by onset of recurrent infections, usually respiratory or cutaneous, in early childhood. Immune workup usually shows neutropenia, lymphopenia, eosinophilia, and increased serum IgE or IgA. Neutrophil chemotactic defects have also been reported. Infectious agents include bacteria, viruses, and fungi. Many patients develop atopic dermatitis, eczema, and other signs of autoinflammation. Affected individuals may also show developmental delay or cognitive impairment of varying severity.

More than 10 unrelated families reported.
Mendeliome v0.5684 DPAGT1 Zornitza Stark changed review comment from: Type I CDG. More than 20 unrelated families reported. Most affected individuals have a very severe disease course, where common findings are pronounced muscular hypotonia, intractable epilepsy, global developmental delay/intellectual disability, and early death. Additional features that may be observed include apnoea and respiratory deficiency, cataracts, joint contractures, vermian hypoplasia, dysmorphic features (esotropia, arched palate, micrognathia, finger clinodactyly, single flexion creases) and feeding difficulties.

Myasthenic syndrome, congenital, 13, with tubular aggregates, MIM 614750 is a milder allelic disorder.; to: Type I CDG. More than 20 unrelated families reported. Most affected individuals have a very severe disease course, where common findings are pronounced muscular hypotonia, intractable epilepsy, global developmental delay/intellectual disability, and early death. Additional features that may be observed include apnoea and respiratory deficiency, cataracts, joint contractures, vermian hypoplasia, dysmorphic features (esotropia, arched palate, micrognathia, finger clinodactyly, single flexion creases) and feeding difficulties.

Myasthenic syndrome, congenital, 13, with tubular aggregates, MIM 614750 is a milder allelic disorder. More than 5 unrelated families reported with this presentation.
Mendeliome v0.5674 POR Zornitza Stark Marked gene: POR as ready
Mendeliome v0.5674 POR Zornitza Stark Gene: por has been classified as Green List (High Evidence).
Mendeliome v0.5674 POR Zornitza Stark Phenotypes for gene: POR were changed from to Antley-Bixler syndrome with genital anomalies and disordered steroidogenesis, MIM#201750; Disordered steroidogenesis due to cytochrome P450 oxidoreductase, MIM#613571
Mendeliome v0.5673 POR Zornitza Stark Publications for gene: POR were set to
Mendeliome v0.5672 POR Zornitza Stark Mode of inheritance for gene: POR was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.5665 POR Elena Savva reviewed gene: POR: Rating: GREEN; Mode of pathogenicity: None; Publications: PMID: 27068427; Phenotypes: Antley-Bixler syndrome with genital anomalies and disordered steroidogenesis, MIM#201750, Disordered steroidogenesis due to cytochrome P450 oxidoreductase, MIM#613571; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes
Mendeliome v0.5652 BMP15 Zornitza Stark commented on gene: BMP15: Only affects females, variants inherited from asymptomatic fathers. Over 50 individuals reported.
Mendeliome v0.5646 NANOS3 Bryony Thompson gene: NANOS3 was added
gene: NANOS3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NANOS3 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: NANOS3 were set to 25054146; 24091668
Phenotypes for gene: NANOS3 were set to Primary ovarian insufficiency
Review for gene: NANOS3 was set to AMBER
Added comment: A homozygous missense (p.Glu120Lys) was identified in two Brazillian sisters with primary amenorrhea, and supporting in vitro functional assays. A heterozygous missense (p.Arg153Trp) was identified in a Chinese woman with POI, with supporting in vitro functional assays. Also, supporting null mouse model.
Sources: Literature
Mendeliome v0.5642 PATL2 Zornitza Stark gene: PATL2 was added
gene: PATL2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PATL2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PATL2 were set to 28965844; 28965849; 32048119; 30765866
Phenotypes for gene: PATL2 were set to Oocyte maturation defect 4, MIM# 617743
Review for gene: PATL2 was set to GREEN
Added comment: More than 5 unrelated families reported, presentation is with infertility.
Sources: Expert list
Mendeliome v0.5638 PGRMC1 Zornitza Stark gene: PGRMC1 was added
gene: PGRMC1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PGRMC1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PGRMC1 were set to 25246111; 18782852
Phenotypes for gene: PGRMC1 were set to Premature ovarian failure
Review for gene: PGRMC1 was set to RED
Added comment: One family with translocation reported and two affected individuals. Another individual identified as part of a cohort with a missense variant (H165R), but the variant is present in >200 hets in gnomad. Subsequent cohort study did not find an association.
Sources: Expert list
Mendeliome v0.5630 POU5F1 Zornitza Stark gene: POU5F1 was added
gene: POU5F1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: POU5F1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: POU5F1 were set to 21273125
Phenotypes for gene: POU5F1 were set to Premature ovarian failure
Review for gene: POU5F1 was set to RED
Added comment: Single individual reported in 2011 and a missense variant.
Sources: Expert list
Mendeliome v0.5628 CCDC141 Bryony Thompson gene: CCDC141 was added
gene: CCDC141 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CCDC141 was set to Unknown
Publications for gene: CCDC141 were set to 27014940; 28324054; 25192046
Phenotypes for gene: CCDC141 were set to Anosmic hypogonadotropic hypogonadism
Review for gene: CCDC141 was set to AMBER
Added comment: A consanguineous family had a homozygous nonsense variant, but also had a homozygous missense in FEZF1. 3 other families reported with heterozygous variants, but other variants in other genes present. In an olfactory mouse model, Ccdc141 is expressed in GnRH neurons and olfactory fibers and that knockdown of Ccdc141 reduces GnRH neuronal migration.
Sources: Literature
Mendeliome v0.5627 SGO2 Zornitza Stark gene: SGO2 was added
gene: SGO2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: SGO2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SGO2 were set to 27629923
Phenotypes for gene: SGO2 were set to Perrault syndrome
Review for gene: SGO2 was set to RED
Added comment: Single affected individual reported, though deafness was thought to be explained by a CLDN14 variant. Protein is known to be involved in meiosis.
Sources: Expert list
Mendeliome v0.5624 SYCE1 Zornitza Stark gene: SYCE1 was added
gene: SYCE1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: SYCE1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SYCE1 were set to 25062452; 32917591; 32741963; 32402064; 31925770; 31916078
Phenotypes for gene: SYCE1 were set to Premature ovarian failure 12, MIM# 616947; Spermatogenic failure 15 ,MIM#616950
Review for gene: SYCE1 was set to GREEN
Added comment: More than 5 families reported with POF/SF and bi-allelic variants in this gene. Mechanism is thought to be disruption of meiosis, mouse model data also supports gene-disease association.
Sources: Expert list
Mendeliome v0.5623 DACH2 Zornitza Stark gene: DACH2 was added
gene: DACH2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: DACH2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: DACH2 were set to 15459172
Phenotypes for gene: DACH2 were set to Primary ovarian insufficiency
Review for gene: DACH2 was set to RED
Added comment: In a small candidate gene study, missense were more common in POI cases than controls (p= 0.0125). 5 missense reported in 7 POI cases, although 2 of the missense are too common in gnomAD for a dominant disorder. No other reports with evidence for an association with POI.
Sources: Expert list
Mendeliome v0.5615 ZP1 Zornitza Stark gene: ZP1 was added
gene: ZP1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: ZP1 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: ZP1 were set to 24670168; 30810869; 32573113; 33272616
Phenotypes for gene: ZP1 were set to Oocyte maturation defect 1, MIM# 615774
Review for gene: ZP1 was set to GREEN
Added comment: Multiple unrelated individuals reported, presents as primary infertility.
Sources: Expert list
Mendeliome v0.5609 CDC40 Zornitza Stark gene: CDC40 was added
gene: CDC40 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CDC40 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CDC40 were set to 33220177
Phenotypes for gene: CDC40 were set to Pontocerebellar hypoplasia; microcephaly; seizures
Review for gene: CDC40 was set to RED
Added comment: Single individual reported with bi-allelic variants in the gene and PCH, microcephaly, hypotonia, seizures, severe DD/ID, thrombocytopaenia, anaemia. Interaction with PPIL1 and mouse model support gene-disease association. Gene referred to as PRP17 in paper.
Sources: Literature
Mendeliome v0.5607 PPIL1 Zornitza Stark gene: PPIL1 was added
gene: PPIL1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PPIL1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PPIL1 were set to 33220177
Phenotypes for gene: PPIL1 were set to Pontocerebellar hypoplasia; microcephaly; seizures
Review for gene: PPIL1 was set to GREEN
Added comment: 17 individuals from 9 unrelated families reported with bi-allelic variants in the gene and PCH, microcephaly, hypotonia, seizures, severe DD/ID. Mouse models support gene-disease association.
Sources: Literature
Mendeliome v0.5604 DIP2B Bryony Thompson Added comment: Comment on list classification: Only repeat expansion reported. Added as an STR
Mendeliome v0.5603 DIP2B Bryony Thompson Added comment: Comment on list classification: Only repeat expansion reported. Added as an STR
Mendeliome v0.5601 PTPRQ Zornitza Stark changed review comment from: Additional heterozygous variants reported in PMID: 33229591; to: Additional heterozygous variants reported in PMID: 33229591, Green for both MOIs.
Mendeliome v0.5601 PTPRQ Zornitza Stark edited their review of gene: PTPRQ: Added comment: Additional heterozygous variants reported in PMID: 33229591; Changed publications: 20346435, 20472657, 25919374, 14534255, 22357859, 29849575, 29309402, 31655630, 33229591
Mendeliome v0.5583 RAP1B Zornitza Stark edited their review of gene: RAP1B: Added comment: Another individual with de novo missense reported from a cohort of Kabuki-like patients but note facial gestalt was not typical.; Changed rating: GREEN; Changed publications: 32627184, 26280580
Mendeliome v0.5575 CFAP45 Zornitza Stark gene: CFAP45 was added
gene: CFAP45 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CFAP45 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CFAP45 were set to 33139725
Phenotypes for gene: CFAP45 were set to Situs inversus; asthenospermia
Review for gene: CFAP45 was set to GREEN
Added comment: Three unrelated individuals reported with bi-alleic LOF variants, mouse model recapitulated phenotype.
Sources: Literature
Mendeliome v0.5572 CLCN6 Zornitza Stark edited their review of gene: CLCN6: Added comment: Three unrelated families reported with recurrent GOF de novo c.1658A>G (p.Tyr553Cys) and severe developmental delay with pronounced generalized hypotonia, respiratory insufficiency, and variable neurodegeneration and diffusion restriction in cerebral peduncles, midbrain, and/or brainstem in MRI scans.; Changed rating: GREEN; Changed publications: 25794116, 21107136, 33217309; Changed phenotypes: Neurodegeneration, Benign partial epilepsy, febrile seizures, NCL; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.5563 BICRA Elena Savva Added comment: Comment when marking as ready: 12 individuals reported, 11 de novo (1 not resolved), "with neurodevelopmental phenotypes—developmental delay (HP:0001263), intellectual disability (HP:0001249), autism spectrum disorder (HP:0000729), and/or behavioral phenotypes (HP:0000708)—and variable structural birth defects and dysmorphic features". Mostly LoF or gene deletions, but 2 missense reported. Zebrafish model supports the gene-disease association.
Mendeliome v0.5557 AGO2 Zornitza Stark gene: AGO2 was added
gene: AGO2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: AGO2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: AGO2 were set to 33199684
Phenotypes for gene: AGO2 were set to Intellectual disability
Review for gene: AGO2 was set to GREEN
Added comment: 21 individuals reported, five variants (p.L192P, p.G201V, p.T357M, p.M364T, p.C751Y) were recurrent. Variable ID.
Sources: Literature
Mendeliome v0.5555 RRP7A Zornitza Stark gene: RRP7A was added
gene: RRP7A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RRP7A was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RRP7A were set to 33199730
Phenotypes for gene: RRP7A were set to Microcephaly
Review for gene: RRP7A was set to AMBER
Added comment: 10 affected individuals from a single large consanguineous family where bi-allelic variant segregated with severe microcephaly (-6-8SD), variable ID. Supportive functional data from mouse and zebrafish.
Sources: Literature
Mendeliome v0.5554 BICRA Paul De Fazio gene: BICRA was added
gene: BICRA was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: BICRA was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: BICRA were set to 33232675
Phenotypes for gene: BICRA were set to Developmental delay, intellectual disability, autism spectrum disorder,behavioral abnormalities, dysmorphic features
Review for gene: BICRA was set to GREEN
gene: BICRA was marked as current diagnostic
Added comment: 12 individuals reported, 11 de novo (1 not resolved), "with neurodevelopmental phenotypes—developmental delay (HP:0001263), intellectual disability (HP:0001249), autism spectrum disorder (HP:0000729), and/or behavioral phenotypes (HP:0000708)—and variable structural birth defects and dysmorphic features". Mostly LoF or gene deletions, but 2 missense reported. Zebrafish model supports the gene-disease association.
Sources: Literature
Mendeliome v0.5553 MINPP1 Zornitza Stark gene: MINPP1 was added
gene: MINPP1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MINPP1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MINPP1 were set to 33257696
Phenotypes for gene: MINPP1 were set to Pontocerebellar hypoplasia
Review for gene: MINPP1 was set to GREEN
Added comment: 8 individuals from 6 unrelated families reported with bi-allelic LOF variants. All presented with almost complete absence of motor and cognitive development, progressive or congenital microcephaly, spastic tetraplegia or dystonia, and vision impairments. For most, the first symptoms included neonatal severe axial hypotonia and epilepsy that started during the first months or years of life. Prenatal symptoms of microcephaly associated with increased thalami echogenicity were detected in one, while the seven other individuals presented with progressive microcephaly. Some exhibited rapidly progressive phenotype and the affected children died in their infancy or middle-childhood. Strikingly, all the affected children had a unique brain MRI showing a mild to severe PCH, fluid-filled posterior fossa, with dilated lateral ventricles. In addition, severe atrophy at the level of the basal ganglia or thalami often associated with typical T2 hypersignal were identified in all the patients MRI.

Supportive functional data showing accumulation of highly phosphorylated inositols, mostly inositol hexakisphosphate (IP6), detected in HEK293 cells, fibroblasts, iPSCs and differentiating neurons lacking MINPP1. In mutant cells, higher IP6 level is expected to be associated with an increased chelation of intracellular cations, such as iron or calcium, resulting in decreased levels of available ions.
Sources: Literature
Mendeliome v0.5552 UNC45B Paul De Fazio gene: UNC45B was added
gene: UNC45B was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: UNC45B was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: UNC45B were set to 33217308
Phenotypes for gene: UNC45B were set to Progressive Myopathy with Eccentric Cores
Review for gene: UNC45B was set to GREEN
gene: UNC45B was marked as current diagnostic
Added comment: 10 individuals from 8 families reported with biallelic variants clinically manifesting with childhood-onset, progressive proximal and axial muscle weakness and various degrees of respiratory insufficiency. 4 missense variants and a +5 splice variant reported, p.Arg754Gln is recurrent. Functional studies support pathogenicity.
Sources: Literature
Mendeliome v0.5549 DNAJB11 Zornitza Stark edited their review of gene: DNAJB11: Added comment: Single family reported with bi-allelic variant and severe, fetal onset renal cystic disease, dilation and proliferation of pancreatic duct cells, and liver ductal plate malformation, an association known as Ivemark II syndrome.; Changed publications: 29706351, 29777155, 33129895; Changed phenotypes: Polycystic kidney disease 6 with or without polycystic liver disease, MIM#618061, Ivermark II syndrome.; Changed mode of inheritance: BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
Mendeliome v0.5547 HHAT Zornitza Stark gene: HHAT was added
gene: HHAT was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: HHAT was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: HHAT were set to 24784881; 30912300
Phenotypes for gene: HHAT were set to Nivelon-Nivelon-Mabille syndrome 600092
Review for gene: HHAT was set to AMBER
Added comment: Two unrelated families reported. Clinical features include progressive microcephaly, cerebellar vermis hypoplasia, and skeletal dysplasia. Variable features include infantile-onset seizures, dwarfism, generalized chondrodysplasia, and micromelia.
Sources: Expert list
Mendeliome v0.5541 H3F3B Zornitza Stark edited their review of gene: H3F3B: Added comment: 13 unrelated individuals reported with missense variants in H3F3B. Phenotype primarily comprised intellectual disability and minor congenital anomalies, regression in significant proportion. Seizures in 50%.; Changed rating: GREEN; Changed publications: 33268356; Changed phenotypes: Intellectual disability, regression, seizures; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.5537 H3F3A Zornitza Stark edited their review of gene: H3F3A: Added comment: 33 unrelated individuals reported with missense variants in H3F3A. Phenotype primarily comprised intellectual disability and minor congenital anomalies, regression in significant proportion. Seizures in 50%.; Changed rating: GREEN; Changed publications: 33268356; Changed phenotypes: Intellectual disability, regression; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.5526 YIPF5 Zornitza Stark gene: YIPF5 was added
gene: YIPF5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: YIPF5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: YIPF5 were set to 33164986
Phenotypes for gene: YIPF5 were set to Neonatal diabetes; microcephaly; seizures
Review for gene: YIPF5 was set to GREEN
Added comment: Six individuals from 5 unrelated consanguineous families reported with bi-allelic variants in this gene and neonatal/early-onset diabetes, severe microcephaly, and epilepsy. Functional data supports gene-disease association.
Sources: Literature
Mendeliome v0.5523 TFE3 Zornitza Stark edited their review of gene: TFE3: Added comment: PMID: 32409512 (2020) - 14 variants reported as de novo events in 17 unrelated cases (including 5 previously published) of severe intellectual disability with pigmentary mosaicism and storage disorder-like features; Changed publications: 30595499, 31833172, 32409512; Changed mode of inheritance: X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Mendeliome v0.5510 FOXA2 Zornitza Stark gene: FOXA2 was added
gene: FOXA2 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: FOXA2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: FOXA2 were set to 29329447; 28973288; 11445544
Phenotypes for gene: FOXA2 were set to Hyperinsulinaemia
Review for gene: FOXA2 was set to GREEN
Added comment: At least two families reported and functional data.
Sources: Expert Review
Mendeliome v0.5507 CAPN15 Eleanor Williams changed review comment from: PMID: 32885237 - Zha et al 2020 - report 5 individuals with microphthalmia and/or coloboma from 4 independent families who, through WES, were identified as carrying homozygous or compound heterozygous missense variants in CAPN15 that are predicted to be damanging. the variants segregated with the disease in all 4 families, with parents being unaffected heterozygous carriers. Several individuals had additional phenotypes including growth deficits (2 families), developmental delay (2 families) and hearing loss (2 families).
Sources: Literature; to: PMID: 32885237 - Zha et al 2020 - report 5 individuals with microphthalmia and/or coloboma from 4 independent families who, through WES, were identified as carrying homozygous or compound heterozygous missense variants in CAPN15 that are predicted to be damanging. the variants segregated with the disease in all 4 families, with parents being unaffected heterozygous carriers. Several individuals had additional phenotypes including growth deficits (2 families), developmental delay (2 families) and hearing loss (2 families). Capn15 knockout mice showed similar severe developmental eye defects, including anophthalmia, microphthalmia and cataract, and diminished growth.

Sources: Literature
Mendeliome v0.5507 CAPN15 Eleanor Williams gene: CAPN15 was added
gene: CAPN15 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CAPN15 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CAPN15 were set to 32885237
Phenotypes for gene: CAPN15 were set to microphthalmia HP:0000568; coloboma HP:0000589
Review for gene: CAPN15 was set to GREEN
Added comment: PMID: 32885237 - Zha et al 2020 - report 5 individuals with microphthalmia and/or coloboma from 4 independent families who, through WES, were identified as carrying homozygous or compound heterozygous missense variants in CAPN15 that are predicted to be damanging. the variants segregated with the disease in all 4 families, with parents being unaffected heterozygous carriers. Several individuals had additional phenotypes including growth deficits (2 families), developmental delay (2 families) and hearing loss (2 families).
Sources: Literature
Mendeliome v0.5503 TARS2 Zornitza Stark edited their review of gene: TARS2: Added comment: Second family reported, single affected individual, compound heterozygous missense variants, computational data only in support of pathogenicity.; Changed publications: 24827421, 26811336, 33153448
Mendeliome v0.5500 KCNJ18 Zornitza Stark gene: KCNJ18 was added
gene: KCNJ18 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: KCNJ18 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: KCNJ18 were set to 20074522; 27008341
Phenotypes for gene: KCNJ18 were set to {Thyrotoxic periodic paralysis, susceptibility to, 2}, MIM# 613239
Review for gene: KCNJ18 was set to RED
Added comment: Six variants reported in original publication, however note lack of segregation data and limited functional data. Subsequently, concerns raised about high nucleotide sequence homology between multiple potassium channel genes, with variant misattribution.
Sources: Expert Review
Mendeliome v0.5487 PIGH Zornitza Stark edited their review of gene: PIGH: Added comment: Further three families reported.

Common clinical features include developmental delay/intellectual disability and hypotonia. Variable clinical features include seizures, autism spectrum disorder, apraxia, severe language delay, dysarthria, feeding difficulties, facial dysmorphisms, microcephaly, strabismus, and musculoskeletal anomalies.; Changed publications: 29573052, 29603516, 33156547
Mendeliome v0.5483 GPAA1 Zornitza Stark edited their review of gene: GPAA1: Added comment: At least 5 unrelated families reported with bi-allelic variants in this gene and delayed psychomotor development, variable intellectual disability, hypotonia, early-onset seizures in most, and cerebellar atrophy, resulting in cerebellar signs including gait ataxia and dysarthria. The disorder is caused by a defect in glycosylphosphatidylinositol (GPI) biosynthesis.; Changed publications: 29100095
Mendeliome v0.5472 AGBL1 Zornitza Stark gene: AGBL1 was added
gene: AGBL1 was added to Mendeliome. Sources: Expert Review
disputed tags were added to gene: AGBL1.
Mode of inheritance for gene: AGBL1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: AGBL1 were set to 24094747; 31555324
Phenotypes for gene: AGBL1 were set to Corneal dystrophy, Fuchs endothelial, 8, MIM# 615523
Review for gene: AGBL1 was set to RED
Added comment: Gene disease association first reported in 2013 in PMID 24094747, in a large multigenerational family. However, note the variant reported, p.Arg1028Ter is present in over 400 hets in gnomad. Another variant reported in same paper, p.Cys990Ser in three unrelated individuals, is present in over 300 hets in gnomad and 1 hom.

Two further variants reported in PMID 31555324, one is missense, p.Arg748His, present in 60 hets, and the other, p.Arg1028Ter, is present is the variant identified in the previous publication, present in over 400 hets.

These variant frequencies are out of keeping for a rare disorder.
Sources: Expert Review
Mendeliome v0.5470 TLE6 Zornitza Stark gene: TLE6 was added
gene: TLE6 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: TLE6 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TLE6 were set to 26537248; 31897846
Phenotypes for gene: TLE6 were set to Preimplantation embryonic lethality, MIM# 616814
Review for gene: TLE6 was set to GREEN
Added comment: At least 5 individuals reported with bi-allelic variants and early embryonic lethality.
Sources: Expert Review
Mendeliome v0.5462 SSR3 Zornitza Stark gene: SSR3 was added
gene: SSR3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SSR3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SSR3 were set to 30945312
Phenotypes for gene: SSR3 were set to Congenital disorder of glycosylation
Review for gene: SSR3 was set to AMBER
Added comment: Single individual reported with an unsolved type I CDG, intellectual disability, homozygous LOF variant in SSR3, supportive functional evidence.
Sources: Literature
Mendeliome v0.5458 DPM2 Zornitza Stark edited their review of gene: DPM2: Added comment: Further unrelated individual reported, main clinical features were truncal hypotonia, hypertonicity, congenital heart defects, intellectual disability, and generalized muscle wasting.; Changed rating: GREEN; Changed publications: 23109149, 33129689
Mendeliome v0.5449 ALG8 Zornitza Stark changed review comment from: Review of 15 reported individuals in PMID: 26066342: multiple prenatal abnormalities were present in 6/12 patients. In 13/15, there were symptoms at birth, 9/15 died within 12 months. Birth weight was appropriate in 11/12, only one was small for gestational age. Prematurity was reported in 7/12. Hydrops fetalis was noticed in 3, edemas in 11/13; gastrointestinal symptoms in 9/14; structural brain pathology, psychomental retardation, seizures, ataxia in 12/13, muscle hypotonia in 13/14. Common dysmorphic signs were: low set ears, macroglossia, hypertelorism, pes equinovarus, campto- and brachydactyly (13/15). In 10/11, there was coagulopathy, in 8/11 elevated transaminases; thrombocytopenia was present in 9/9. Eye involvement was reported in 9/14. CDG typical skin involvement was reported in 8/13.; to: Bi-allelic variants and CDG: Review of 15 reported individuals in PMID: 26066342. Multiple prenatal abnormalities were present in 6/12 patients. In 13/15, there were symptoms at birth, 9/15 died within 12 months. Birth weight was appropriate in 11/12, only one was small for gestational age. Prematurity was reported in 7/12. Hydrops fetalis was noticed in 3, edemas in 11/13; gastrointestinal symptoms in 9/14; structural brain pathology, psychomental retardation, seizures, ataxia in 12/13, muscle hypotonia in 13/14. Common dysmorphic signs were: low set ears, macroglossia, hypertelorism, pes equinovarus, campto- and brachydactyly (13/15). In 10/11, there was coagulopathy, in 8/11 elevated transaminases; thrombocytopenia was present in 9/9. Eye involvement was reported in 9/14. CDG typical skin involvement was reported in 8/13.
Mendeliome v0.5441 SLC3A2 Naomi Baker changed review comment from: No evidence of mendelian gene-disease association reported in the literature.; to: Weak evidence of mendelian gene-disease association reported in the literature.

Three monoallelic missense variants reported in patients with Autism spectrum disorder (ASD) from one publication (PMID: 31701662).
Mendeliome v0.5408 MYL9 Zornitza Stark gene: MYL9 was added
gene: MYL9 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MYL9 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MYL9 were set to 29453416; 33031641
Phenotypes for gene: MYL9 were set to Megacystis-microcolon-intestinal hypoperistalsis syndrome
Review for gene: MYL9 was set to AMBER
Added comment: Two unrelated families reported.
Sources: Literature
Mendeliome v0.5400 MTCL1 Bryony Thompson edited their review of gene: MTCL1: Added comment: A new report of another case with a homozygous loss of function variant and a similar phenotype to the previously reported early onset homozygous Polish case (2 independent cases), and the supporting null mouse model.; Changed rating: GREEN; Changed publications: 30548255, 28283581, 32961396; Changed mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.5389 DZIP1 Zornitza Stark changed review comment from: One large 4-generation family reported, where missense variant segregated with disease. Two additional individuals identified from a cohort. All variants present at low frequency in population databases. Mouse model recapitulated phenotype.
Sources: Literature; to: Association with MVP: One large 4-generation family reported, where missense variant segregated with disease. Two additional individuals identified from a cohort. All variants present at low frequency in population databases. Mouse model recapitulated phenotype.
Sources: Literature
Mendeliome v0.5389 DZIP1 Zornitza Stark edited their review of gene: DZIP1: Added comment: Two individuals reported in PMID 32051257 with bi-allelic variants and spermatogenic failure.; Changed publications: 31118289, 32051257; Changed phenotypes: Mitral valve prolapse, MIM#610840, Spermatogenic failure 47, MIM# 619102; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.5387 DZIP1 Zornitza Stark gene: DZIP1 was added
gene: DZIP1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DZIP1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: DZIP1 were set to 31118289
Phenotypes for gene: DZIP1 were set to Mitral valve prolapse
Review for gene: DZIP1 was set to AMBER
Added comment: One large 4-generation family reported, where missense variant segregated with disease. Two additional individuals identified from a cohort. All variants present at low frequency in population databases. Mouse model recapitulated phenotype.
Sources: Literature
Mendeliome v0.5385 ADH5 Zornitza Stark gene: ADH5 was added
gene: ADH5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ADH5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ADH5 were set to 33147438
Phenotypes for gene: ADH5 were set to Aplastic anaemia; myelodysplasia; short stature
Review for gene: ADH5 was set to GREEN
Added comment: 7 individuals reported with bi-allelic variants in this gene and a Fanconi syndrome-like phenotype. All had aplastic anaemia, 4 developed a myelodysplastic syndrome, and one developed AML. Short stature and abnormal skin pigmentation were additional features.

Note, all also had the ALDH2*2 allele, which is common in East Asian populations, and may be contributory.

Extensive experimental data.
Sources: Literature
Mendeliome v0.5376 MYRF Zornitza Stark edited their review of gene: MYRF: Added comment: Association with Encephalitis/encephalopathy, mild, with reversible myelin vacuolization 618113: limited evidence, two multiplex families with same missense variant (likely founder effect) reported (p.Gln403Arg); Changed publications: 31048900, 31172260, 31266062, 31700225, 29446546, 29446546, 30532227, 31069960, 29265453; Changed phenotypes: Nanophthalmos and high hyperopia, Cardiac-urogenital syndrome, MIM# 618280, Encephalitis/encephalopathy, mild, with reversible myelin vacuolization, MIM# 618113
Mendeliome v0.5376 MYRF Zornitza Stark changed review comment from: Cardiac-urogenital syndrome is characterized by partial anomalous pulmonary venous return in association with tracheal anomalies, pulmonary hypoplasia, congenital diaphragmatic hernia, thyroid fibrosis, thymic involution, cleft spleen, penoscrotal hypospadias, and cryptorchidism. More than 10 unrelated individuals reported.; to: Cardiac-urogenital syndrome MIM# 618280 is characterized by partial anomalous pulmonary venous return in association with tracheal anomalies, pulmonary hypoplasia, congenital diaphragmatic hernia, thyroid fibrosis, thymic involution, cleft spleen, penoscrotal hypospadias, and cryptorchidism. More than 10 unrelated individuals reported.
Mendeliome v0.5376 MYRF Zornitza Stark edited their review of gene: MYRF: Added comment: Cardiac-urogenital syndrome is characterized by partial anomalous pulmonary venous return in association with tracheal anomalies, pulmonary hypoplasia, congenital diaphragmatic hernia, thyroid fibrosis, thymic involution, cleft spleen, penoscrotal hypospadias, and cryptorchidism. More than 10 unrelated individuals reported.; Changed publications: 31048900, 31172260, 31266062, 31700225, 29446546, 29446546, 30532227, 31069960; Changed phenotypes: Nanophthalmos and high hyperopia, Cardiac-urogenital syndrome, MIM# 618280
Mendeliome v0.5376 MYRF Zornitza Stark changed review comment from: Multiple affected individuals reported.
Sources: Expert list; to: Multiple affected individuals reported with nanophthalmos and high hyperopia and C-terminal frameshift variants, with or without dextrocardia or congenital diaphragmatic hernia.
Sources: Expert list
Mendeliome v0.5373 GABBR2 Zornitza Stark commented on gene: GABBR2: At least 3 unrelated individuals reported with DEE 59, MIM# 617904. Neurodevelopmental disorder with poor language and loss of hand skills, MIM# 617903 is an allelic disorder, which is less severe. The two may represent a spectrum.
Mendeliome v0.5372 DNAH2 Zornitza Stark gene: DNAH2 was added
gene: DNAH2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: DNAH2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: DNAH2 were set to 30811583
Phenotypes for gene: DNAH2 were set to Spermatogenic failure 45, MIM# 619094
Review for gene: DNAH2 was set to GREEN
Added comment: Three unrelated families reported.
Sources: Expert list
Mendeliome v0.5353 NDUFB10 Zornitza Stark edited their review of gene: NDUFB10: Added comment: Second family reported, functional data, upgrade to Green.; Changed rating: GREEN; Changed publications: 28040730, 32025618, 33169436
Mendeliome v0.5351 SCD5 Zornitza Stark gene: SCD5 was added
gene: SCD5 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: SCD5 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SCD5 were set to 31972369
Phenotypes for gene: SCD5 were set to Deafness, autosomal dominant 79, MIM#619086
Review for gene: SCD5 was set to RED
Added comment: Single 5-generation family reported with a missense variant segregating in 19 affected individuals. Variant is found at a low frequency in ExAC.
Sources: Expert list
Mendeliome v0.5329 ARL2 Zornitza Stark gene: ARL2 was added
gene: ARL2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: ARL2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ARL2 were set to 30945270
Phenotypes for gene: ARL2 were set to Microcornea, rod-cone dystrophy, cataract, and posterior staphyloma-1 (MRCS1), MIM#619082
Review for gene: ARL2 was set to RED
Added comment: Single family reported, missense variant segregating with structural eye abnormalities in 4 individuals (father and three daughters).
Sources: Expert list
Mendeliome v0.5327 LMX1B Zornitza Stark commented on gene: LMX1B: Nail-patella syndrome (NPS) is an autosomal-dominant disease characterized by dysplastic nails, absent or hypoplastic patellae, elbow dysplasia, and iliac horns. Varying degrees of proteinuria or hematuria are present, and can occasionally progress to chronic renal failure. Some variants in the homeodomain of LMX1B cause isolated nephropathy without nail, patellar or skeletal abnormality (LMX1B-associated nephropathy).

>300 families reported.
Mendeliome v0.5320 CARD8 Zornitza Stark gene: CARD8 was added
gene: CARD8 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: CARD8 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CARD8 were set to 29408806
Phenotypes for gene: CARD8 were set to Inflammatory bowel disease-30, MIM#619079
Review for gene: CARD8 was set to RED
Added comment: Two individuals from one family reported segregating a missense variant, dominant negative effect postulated.
Sources: Expert list
Mendeliome v0.5317 UBA1 Zornitza Stark edited their review of gene: UBA1: Added comment: Association with VEXAS: 25 men reported with somatic mutations affecting methionine-41 (p.Met41) in UBA1, the major E1 enzyme that initiates ubiquitylation, and an often fatal, treatment-refractory inflammatory syndrome develops in late adulthood, with fevers, cytopaenias, characteristic vacuoles in myeloid and erythroid precursor cells, dysplastic bone marrow, neutrophilic cutaneous and pulmonary inflammation, chondritis, and vasculitis.; Changed publications: 18179898, 32181232, 31932168, 29034082, 27699224, 26028276, 23518311, 33108101; Changed phenotypes: Spinal muscular atrophy, X-linked 2, infantile, MIM# 301830, Autoinflammatory disease, adult onset: VEXAS (vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic)
Mendeliome v0.5274 MYMK Zornitza Stark changed review comment from: Sources: Expert list; to: Carey-Fineman-Ziter syndrome (CFZS) is a multisystem congenital disorder characterized by hypotonia, Moebius sequence (bilateral congenital facial palsy with impairment of ocular abduction), Pierre Robin complex (micrognathia, glossoptosis, and high-arched or cleft palate), delayed motor milestones, and failure to thrive. Intellect has been normal in molecularly confirmed cases. Defect in myoblast fusion. 6 unrelated families reported with CFZ phenotype and bi-allelic MYMK variants. p.Pro91Thr is a common founder variant, which is hypomorphic.
Mendeliome v0.5270 FOXP4 Zornitza Stark gene: FOXP4 was added
gene: FOXP4 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FOXP4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: FOXP4 were set to 33110267
Phenotypes for gene: FOXP4 were set to Neurodevelopmental disorder; multiple congenital abnormalities
Review for gene: FOXP4 was set to GREEN
Added comment: Eight unrelated individuals reported, seven de novo missense, and one individual with a truncating variant. Detailed phenotypic information available on 6. Overlapping features included speech and language delays, growth abnormalities, congenital diaphragmatic hernia (2/6), cervical spine abnormalities, and ptosis. Intellectual disability described as mild in 2, some had normal intellect despite the early speech and language delays.
Sources: Literature
Mendeliome v0.5254 FBXO31 Kristin Rigbye changed review comment from: 2 unrelated probands with CP harbouring the same de novo missense variant (p.Asp334Asn). The variant affects the cyclin D interaction site, leading to an apparent gain of function of cyclin D degradation, supported by Western blots from patient fibroblasts which showed decreased cyclin D expression.; to: 2 unrelated probands with CP harbouring the same de novo missense variant (p.Asp334Asn). The variant affects the cyclin D interaction site, leading to an apparent gain of function of cyclin D degradation, supported by Western blots from patient fibroblasts which showed decreased cyclin D expression.

Extended patient phenotypes: Spastic diplegia, with esotropia, ID, dysarthria, mixed receptive/expressive language disorder, ADHD, cleft palate, intestinal malrotation and midgut volvulus (patient 1); Spastic paraplegia with ventricular dilation and thin corpus callosum, ID, attention deficit, anxiety, language impairments, strabismus, severe constipation (patient 2).
Mendeliome v0.5251 RHOB Crystle Lee gene: RHOB was added
gene: RHOB was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: RHOB was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: RHOB were set to 32989326
Phenotypes for gene: RHOB were set to Cerebral Palsy (PMID:32989326)
Mode of pathogenicity for gene: RHOB was set to Other
Review for gene: RHOB was set to AMBER
Added comment: Candidate disease-causing gene for CP. Recurrent de novo missense variant reported in 2 unrelated families with supporting functional studies.
Sources: Expert list
Mendeliome v0.5248 NHLRC2 Paul De Fazio changed review comment from: 3 families with compound het variants in total, all share one missense variant (p.Asp148Ty)

PMID 29423877: 3 patients from 2 Finnish families compound het for the same missense variant (122 hets 0 homs) and the same frameshift variant (12 hets 0 homs), main clinical features included progressive cerebropulmonary symptoms, malabsorption, progressive growth failure, recurrent infections, chronic haemolytic anaemia and transient liver dysfunction. Expression studies in patient-derived fibroblasts supported the frameshift variant leading to NMD. Zebrafish knockdown affected the integrity of cells in the midbrain region.

PMID 32435055: patient with the same phenotype from a Ukrainian family chet for two missense variants, one shared with the Finnish families and one novel.; to: 3 families with compound het variants in total, all share one missense variant (p.Asp148Ty)

PMID 29423877: 3 patients from 2 Finnish families compound het for the same missense variant (122 hets 0 homs) and the same frameshift variant (12 hets 0 homs), main clinical features included progressive cerebropulmonary symptoms, malabsorption, progressive growth failure, recurrent infections, chronic haemolytic anaemia and transient liver dysfunction. Expression studies in patient-derived fibroblasts supported the frameshift variant leading to NMD. Zebrafish knockdown affected the integrity of cells in the midbrain region.

PMID 32435055: patient with the same phenotype from a Ukrainian family chet for two missense variants, one shared with the Finnish families and one novel.
Mendeliome v0.5248 NHLRC2 Paul De Fazio changed review comment from: 3 families with compound het variants in total, all share one missense variant (p.Asp148Ty)

PMID 29423877: 3 patients from 2 Finnish families compound het for the same missense variant (122 hets 0 homs) and the same frameshift variant (12 hets 0 homs), main clinical features included progressive cerebropulmonary symptoms, malabsorption, progressive growth failure, recurrent infections, chronic haemolytic anaemia and transient liver dysfunction. Zebrafish knockdown affected the integrity of cells in the midbrain region.

PMID 32435055: patient with the same phenotype from a Ukrainian family chet for two missense variants, one shared with the Finnish families and one novel.; to: 3 families with compound het variants in total, all share one missense variant (p.Asp148Ty)

PMID 29423877: 3 patients from 2 Finnish families compound het for the same missense variant (122 hets 0 homs) and the same frameshift variant (12 hets 0 homs), main clinical features included progressive cerebropulmonary symptoms, malabsorption, progressive growth failure, recurrent infections, chronic haemolytic anaemia and transient liver dysfunction. Expression studies in patient-derived fibroblasts supported the frameshift variant leading to NMD. Zebrafish knockdown affected the integrity of cells in the midbrain region.

PMID 32435055: patient with the same phenotype from a Ukrainian family chet for two missense variants, one shared with the Finnish families and one novel.
Mendeliome v0.5244 STN1 Zornitza Stark edited their review of gene: STN1: Added comment: Third unrelated family reported, promote to Green.; Changed rating: GREEN; Changed publications: 27432940, 32627942
Mendeliome v0.5243 ITPR3 Zornitza Stark gene: ITPR3 was added
gene: ITPR3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ITPR3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ITPR3 were set to 32949214
Phenotypes for gene: ITPR3 were set to Charcot-Marie-Tooth disease
Review for gene: ITPR3 was set to AMBER
Added comment: Two unrelated families reported: variant segregated in four affected individuals in one family and was de novo in the second family where there was a single affected person. Some evidence for dominant-negative effect.
Sources: Literature
Mendeliome v0.5240 AMOTL1 Zornitza Stark gene: AMOTL1 was added
gene: AMOTL1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: AMOTL1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: AMOTL1 were set to 33026150
Phenotypes for gene: AMOTL1 were set to Cleft lip and palate; imperforate anus; dysmorphism
Review for gene: AMOTL1 was set to RED
Added comment: Two unrelated families reported. In one, the variant was identified in parent and child who had orofacial cleft and cardiac abnormalities. Second report in PMID 33026150, de novo missense variant and cleft lip/palate, imperforate anus and dysmorphism. Mouse model does not recapitulate phenotype.
Sources: Literature
Mendeliome v0.5238 KIRREL1 Zornitza Stark gene: KIRREL1 was added
gene: KIRREL1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KIRREL1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: KIRREL1 were set to 31472902
Phenotypes for gene: KIRREL1 were set to Steroid-resistant nephrotic syndrome
Review for gene: KIRREL1 was set to AMBER
Added comment: Two unrelated families reported with bi-allelic variants and limited functional data.
Sources: Literature
Mendeliome v0.5236 GFRA1 Zornitza Stark gene: GFRA1 was added
gene: GFRA1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GFRA1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GFRA1 were set to 33020172
Phenotypes for gene: GFRA1 were set to Renal agenesis
Review for gene: GFRA1 was set to AMBER
Added comment: Two unrelated families reported with bi-allelic LOF variants identified in individuals with bilateral renal agenesis. GFRA1 gene encodes a receptor on the Wolffian duct that regulates ureteric bud outgrowth in the development of a functional renal system.
Sources: Literature
Mendeliome v0.5229 PRKAR1B Konstantinos Varvagiannis gene: PRKAR1B was added
gene: PRKAR1B was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PRKAR1B was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: PRKAR1B were set to https://doi.org/10.1101/2020.09.10.20190314; 25414040
Phenotypes for gene: PRKAR1B were set to Global developmental delay; Intellectual disability; Autism; Attention deficit hyperactivity disorder; Aggressive behavior; Abnormality of movement; Upslanted palpebral fissure
Penetrance for gene: PRKAR1B were set to unknown
Review for gene: PRKAR1B was set to AMBER
Added comment: Please consider inclusion of this gene with amber rating pending publication of the preprint and/or additional evidence.

Marbach et al. (2020 - medRxiv : https://doi.org/10.1101/2020.09.10.20190314 - last author : C. Schaaf) report 6 unrelated individuals with heterozygous missense PRKAR1B variants.

All presented formal ASD diagnosis (6/6), global developmental delay (6/6) and intellectual disability (all - formal evaluations were lacking though). Additional features included neurologic anomalies (movement disorders : dyspraxia, apraxia, clumsiness in all, with tremor/dystonia or involuntary movements as single occurrences). Three displayed high pain tolerance. Regression in speech was a feature in two. Additional behavior anomalies included ADHD (4-5/6) or aggression (3/6). There was no consistent pattern of malformations, physical anomalies or facial features (with the exception of uplsanted palpebral fissures reported in 4).

3 different missense variants were identified (NM_00116470:c.1003C>T - p.Arg335Trp, c.586G>A - p.Glu196Lys, c.500_501delAAinsTT - p.Gln167Leu) with Arg355Trp being a recurrent one within this cohort (4/6 subjects). A possible splicing effect may apply for the MNV. All variants are absent from gnomAD and the SNVs had CADD scores > 24.

In all cases were parental samples were available (5/6), the variant had occurred as a de novo event.

Protein kinase A (PKA) is a tetrameric holoenzyme formed by the association of 2 catalytic (C) subunits with a regulatory (R) subunit dimer. Activation of PKA is achieved through binding of 2 cAMP molecules to each R-subunit, and unleashing(/dissociation) of C-subunits to engage substrates. PRKACA/B genes encode the Cα- and Cβ-subunits while the 4 functionally non-redundant regulatory subunits are encoded by PRKAR1A/1B/2A/2B genes. As the authors comment, the RIβ subunit is primarily expressed in brain with higher expression in cortex and hypothalamus.

The functional consequences of the variants at cellular level were not studied.

Previous studies have demonstrated that downregulation of RIβ in murine hippocampal cultures, reduced phosphorylation of CREB, a transcription factor involved in long-term memory formation. The authors speculate that a similar effect on cAMP/PKA/CREB cascade may mediate the cognitive effects in humans. RIβ deficient mice also display diminished nociceptive pain, similar to the human phenotype. [Several refs provided].

The authors cite the study by Kaplanis et al (2020 - PMID: 33057194), where in a large sample of 31,058 trio exomes of children with developmental disorders, PRKAR1B was among the genes with significant enrichment for de novo missense variants. [The gene has a pLI score of 0.18 in gnomAD / o/e = 0.26 - so pLoF variants may not be deleterious].

Please note that a specific PRKAR1B variant (NM_002735.2:c.149T>G - p.Leu50Arg) has been previous reported to segregate with a late-onset neurodegenerative disorder characterized by dementia and/or parkinsonism within a large pedigree with 12 affected individuals [Wong et al 2014 - PMID: 25414040].
Sources: Literature
Mendeliome v0.5222 MPP5 Konstantinos Varvagiannis gene: MPP5 was added
gene: MPP5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MPP5 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: MPP5 were set to 33073849
Phenotypes for gene: MPP5 were set to Global developmental delay; Intellectual disability; Delayed speech and language development; Developmental regression; Behavioral abnormality
Penetrance for gene: MPP5 were set to unknown
Review for gene: MPP5 was set to GREEN
Added comment: Sterling et al (2020 - PMID: 33073849) provide information on the phenotype of 3 individuals with de novo MPP5 variants.

Common features included global developmental delay, intellectual disability (3/3 - severe in 2/3), speech delay/regression (the latter in at least 2) and behavioral abnormalities. Variable other features were reported, among others microcephaly (1/3), abnormal vision (1/3 : CVI, retinal dystrophy, nystagmus), brain MRI abnormalities (2/3), late-onset seizures (1/3). These subjects displayed variable and non-specific dysmorphic features.

All were investigated by exome sequencing (previous investigations not mentioned).

One subject was found to harbor a de novo mosaic (5/25 reads) stopgain variant, further confirmed by Sanger sequencing [NM_022474.4:c.1555C>T - p.(Arg519Ter). The specific variant is reported once in gnomAD (1/251338). Two de novo missense variants were identified in the remaining individuals [c.1289A>G - p.Glu430Gly / c.974A>C - p.His325Pro). All variants had in silico predictions in favor of a deleterious effect (CADD score >24).

The authors comment that MPP5 encodes an apical complex protein with asymmetric localization to the apical side of polarized cells. It is expressed in brain, peripheral nervous system and other tissues. MPP5 is a member of the membrane-associated guanylate kinase family of proteins (MAGUK p55 subfamily), determining cell polarity at tight junctions.

Previous animal models suggest that complete Mpp5(Pals1) KO in mice leads to near absence of cerebral cortical neurons. Htz KO display reduction in size of cerebral cortex and hippocampus. The gene is expressed in proliferating cell populations of cerebellum and important for establishment cerebellar architecture. Conditional KO of Mpp5(Pals1) in retinal progenitor cells mimics the retinal pathology observed in LCA. [Several refs. provided]

The authors studied a heterozygous CNS-specific Mpp5 KO mouse model. These mice presented microcephaly, decreased cerebellar volume and cortical thickness, decreased ependymal cells and Mpp5 at the apical surface of cortical vertrical zone. The proportion of cortical cells undergoing apoptotic cell death was increased. Mice displayed behavioral abnormalities (hyperactivity) and visual deficits, with ERG traces further suggesting retinal blindness.

Overall the mouse model was thought to recapitulate the behavioral abnormalities observed in affected subjects as well as individual rare features such as microcephaly and abnormal vision.

Haploinsufficiency (rather than a dominant negative effect) is favored as the underlying disease mechanism. This is also in line with a dose dependent effect observed in mice.
Sources: Literature
Mendeliome v0.5216 SCYL1 Zornitza Stark commented on gene: SCYL1: Autosomal recessive spinocerebellar ataxia-21 is a neurologic disorder characterized by onset of cerebellar ataxia associated with cerebellar atrophy in early childhood. Affected individuals also have recurrent episodes of liver failure in the first decade, resulting in chronic liver fibrosis, as well as later onset of a peripheral neuropathy. Mild learning disabilities may also occur. More than 5 unrelated families reported.
Mendeliome v0.5198 ODC1 Zornitza Stark commented on gene: ODC1: Fifth individual reported in PMID 30239107: de novo nonsense variant identified, molecular modeling suggested that due to lack of a C terminus in the mutant protein, antizyme binding does not induce ODC degradation, leading to accumulation of active protein.
Mendeliome v0.5198 ODC1 Zornitza Stark changed review comment from: Four individuals with de novo GoF variants in this gene reported.
Sources: Literature; to: Four individuals with de novo GoF variants in this gene reported.
Sources: Literature
Mendeliome v0.5197 KDELR2 Zornitza Stark gene: KDELR2 was added
gene: KDELR2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: KDELR2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: KDELR2 were set to 33053334
Phenotypes for gene: KDELR2 were set to Increased susceptibility to fractures; joint hypermobility; Scoliosis; Bowing of the legs; Bowing of the arms
Review for gene: KDELR2 was set to GREEN
Added comment: 4 families with osteogenesis imperfecta reported with functional studies.
Sources: Expert list
Mendeliome v0.5168 SLC35A3 Zornitza Stark edited their review of gene: SLC35A3: Added comment: Third unrelated family reported in PMID 28777481 with prenatally diagnosed anomalous vertebrae, including butterfly, and hemivertebrae throughout the spine, as well as cleft palate, micrognathia, patent foramen ovale, patent ductus arteriosus, posterior embryotoxon, short limbs, camptodactyly, talipes valgus, rocker bottom feet, and facial dysmorphism including proptosis, nevus flammeus, and a cupped left ear. Unclear if this is a distinct phenotype (note Holstein cows with variants in this gene have a skeletal phenotype) or part of a spectrum for a CDG. However, abnormal protein glycosylation, consistent with a defective Golgi UDP-GlcNAc transporter demonstrated, so overall, promoted to Green for CDG.; Changed rating: GREEN; Changed publications: 28777481, 28328131, 24031089; Changed phenotypes: Arthrogryposis, mental retardation, and seizures OMIM #615553, Skeletal dysplasia, Congenital disorder of glycosylation; Changed mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.5139 CTNNA3 Bryony Thompson gene: CTNNA3 was added
gene: CTNNA3 was added to Mendeliome. Sources: ClinGen
Mode of inheritance for gene: CTNNA3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CTNNA3 were set to 23136403; 21254927; 22421363; 30415094; 31539150
Phenotypes for gene: CTNNA3 were set to Arrhythmogenic right ventricular cardiomyopathy; Arrhythmogenic right ventricular dysplasia, familial, 13 MIM#615616
Review for gene: CTNNA3 was set to AMBER
Added comment: Gene is classified as Limited by the ClinGen ARVC GCEP (Classification - 08/06/2019). PMID: 23136403 - an assumed de novo missense (V94D) was identified in an Italian proband with arrhythmogenic right ventricular dysplasia. An inframe deletion (Leu765del) was identified in a proband with arrhythmogenic right ventricular dysplasia, and was also present in the proband's asymptomatic father and paternal aunt, who had mild right ventricular dilation on echocardiography and increased trabeculations in the right ventricular apex on MRI, respectively, as well as in the aunt's asymptomatic son. There was supporting in vitro functional assay evidence for both variants. PMID: 21254927 - a missense variant was found in one of 55 Danish ARVD patients, but was found 37 times in 276,338 (1 homozygous) reference alleles in gnomAD making it less likely as a causal variant. PMID: 22421363 - null mice exhibit progressive dilated cardiomyopathy, gap junction remodelling, and increased sensitivity to ventricular arrhythmia following acute ischaemia, but not spontaneous ARVC. Additional publications identified - PMID: 30415094 - a VUS identified in a sudden unexpected death case with slight LV hypertrophy. PMID: 31539150 - 2 VUS and a nonsense variant identified in 3 probands with atrial fibrillation, with the nonsense variant segregating in an affected first-degree relative.
Sources: ClinGen
Mendeliome v0.5121 COX4I1 Zornitza Stark gene: COX4I1 was added
gene: COX4I1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: COX4I1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: COX4I1 were set to 28766551; 22592081; 31290619
Phenotypes for gene: COX4I1 were set to Mitochondrial complex IV deficiency, nuclear type 16, MIM#619060
Review for gene: COX4I1 was set to AMBER
Added comment: Two unrelated families reported.

Two more variants reported in PMID: 22592081: one is non-coding and the other rare missense, appear to have been identified in separate individuals, i.e. heterozygous in each individual.
Sources: Expert list
Mendeliome v0.5102 PRKACB Konstantinos Varvagiannis gene: PRKACB was added
gene: PRKACB was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PRKACB was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: PRKACB were set to 33058759
Phenotypes for gene: PRKACB were set to Postaxial hand polydactyly; Postaxial foot polydactyly; Common atrium; Atrioventricular canal defect; Narrow chest; Abnormality of the teeth; Intellectual disability
Penetrance for gene: PRKACB were set to unknown
Mode of pathogenicity for gene: PRKACB was set to Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments
Review for gene: PRKACB was set to GREEN
Added comment: Palencia-Campos et al (2020 - PMID: 33058759) report on the phenotype of 3 individuals heterozygous for PRKACA and 4 individuals heterozygous for PRKACB pathogenic variants.

The most characteristic features in all individuals with PRKACA/PRKACB mutation, included postaxial polydactyly of hands (6/7 bilateral, 1/7 unilateral) and feet (4/7 bilateral, 1/7 unilateral), brachydactyly and congenital heart defects (CHD 5/7) namely a common atrium or AVSD. Two individuals with PRKACA variant who did not have CHD had offspring with the same variant and an AVSD.

Other variably occurring features included short stature, limbs, narrow chest, abnormal teeth, oral frenula, nail dysplasia. One individual with PRKACB variant presented tumors.

Intellectual disability was reported in 2/4 individuals with PRKACB variant (1/4: mild, 1/4: severe). The 3 individuals with PRKACA variant did not present ID.

As the phenotype was overall suggestive of Ellis-van Creveld syndrome (or the allelic Weyers acrofacial dysostosis), although these diagnoses were ruled out following analysis of EVC and EVC2 genes.

WES was carried out in all.

PRKACA : A single heterozygous missense variant was identified in 3 individuals from 3 families (NM_002730.4:c.409G>A / p.Gly137Arg) with 1 of the probands harboring the variant in mosaic state (28% of reads) and having 2 similarly affected offspring. The variant was de novo in one individual and inherited in a third one having a similarly affected fetus (narrow thorax, postaxial polyd, AVSD).

PRKACB : 4 different variants were identified (NM_002731.3: p.His88Arg/Asn, p.Gly235Arg, c.161C>T - p.Ser54Leu). One of the individuals was mosaic for the latter variant, while in all other cases the variant had occurred de novo.

Protein kinase A (PKA) is a tetrameric holoenzyme formed by the association of 2 catalytic (C) subunits with a regulatory (R) subunit dimer. Activation of PKA is achieved through binding of 2 cAMP molecules to each R-subunit, and unleashing(/dissociation) of C-subunits to engage substrates. PRKACA/B genes encode the Cα- and Cβ-subunits while the 4 functionally non-redundant regulatory subunits are encoded by PRKAR1A/1B/2A/2B genes.

The authors provide evidence that the variants confer increased sensitivity of PKA holoenzymes to activation by cAMP (compared to wt).

By performing ectopic expression of wt or mt PRKACA/B (variants studied : PRKACA p.Gly137Arg / PRKACB p.Gly235Arg) in NIH 3T3 fibroblasts, the authors demonstrate that inhibition of hedgehog signaling likely underlyies the developmental defects observed in affected individuals.

As for PRKACA, the authors cite another study where a 31-month old female with EvC syndrome diagnosis was found to harbor the aforementioned variant (NM_001304349.1:c.637G>A:p.Gly213Arg corresponding to NM_002730.4:c.409G>A / p.Gly137Arg) as a de novo event. Without additional evidence at the time, the variant was considered to be a candidate for this subject's phenotype (Monies et al 2019 – PMID: 31130284).
Sources: Literature
Mendeliome v0.5102 PRKACA Konstantinos Varvagiannis gene: PRKACA was added
gene: PRKACA was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PRKACA was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: PRKACA were set to 33058759; 31130284
Phenotypes for gene: PRKACA were set to Postaxial hand polydactyly; Postaxial foot polydactyly; Common atrium; Atrioventricular canal defect; Narrow chest; Abnormality of the teeth; Intellectual disability
Penetrance for gene: PRKACA were set to unknown
Mode of pathogenicity for gene: PRKACA was set to Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments
Review for gene: PRKACA was set to GREEN
Added comment: Palencia-Campos et al (2020 - PMID: 33058759) report on the phenotype of 3 individuals heterozygous for PRKACA and 4 individuals heterozygous for PRKACB pathogenic variants.

The most characteristic features in all individuals with PRKACA/PRKACB mutation, included postaxial polydactyly of hands (6/7 bilateral, 1/7 unilateral) and feet (4/7 bilateral, 1/7 unilateral), brachydactyly and congenital heart defects (CHD 5/7) namely a common atrium or AVSD. Two individuals with PRKACA variant who did not have CHD had offspring with the same variant and an AVSD.

Other variably occurring features included short stature, limbs, narrow chest, abnormal teeth, oral frenula, nail dysplasia. One individual with PRKACB variant presented tumors.

Intellectual disability was reported in 2/4 individuals with PRKACB variant (1/4: mild, 1/4: severe). The 3 individuals with PRKACA variant did not present ID.

As the phenotype was overall suggestive of Ellis-van Creveld syndrome (or the allelic Weyers acrofacial dysostosis), although these diagnoses were ruled out following analysis of EVC and EVC2 genes.

WES was carried out in all.

PRKACA : A single heterozygous missense variant was identified in 3 individuals from 3 families (NM_002730.4:c.409G>A / p.Gly137Arg) with 1 of the probands harboring the variant in mosaic state (28% of reads) and having 2 similarly affected offspring. The variant was de novo in one individual and inherited in a third one having a similarly affected fetus (narrow thorax, postaxial polyd, AVSD).

PRKACB : 4 different variants were identified (NM_002731.3: p.His88Arg/Asn, p.Gly235Arg, c.161C>T - p.Ser54Leu). One of the individuals was mosaic for the latter variant, while in all other cases the variant had occurred de novo.

Protein kinase A (PKA) is a tetrameric holoenzyme formed by the association of 2 catalytic (C) subunits with a regulatory (R) subunit dimer. Activation of PKA is achieved through binding of 2 cAMP molecules to each R-subunit, and unleashing(/dissociation) of C-subunits to engage substrates. PRKACA/B genes encode the Cα- and Cβ-subunits while the 4 functionally non-redundant regulatory subunits are encoded by PRKAR1A/1B/2A/2B genes.

The authors provide evidence that the variants confer increased sensitivity of PKA holoenzymes to activation by cAMP (compared to wt).

By performing ectopic expression of wt or mt PRKACA/B (variants studied : PRKACA p.Gly137Arg / PRKACB p.Gly235Arg) in NIH 3T3 fibroblasts, the authors demonstrate that inhibition of hedgehog signaling likely underlyies the developmental defects observed in affected individuals.

As for PRKACA, the authors cite another study where a 31-month old female with EvC syndrome diagnosis was found to harbor the aforementioned variant (NM_001304349.1:c.637G>A:p.Gly213Arg corresponding to NM_002730.4:c.409G>A / p.Gly137Arg) as a de novo event. Without additional evidence at the time, the variant was considered to be a candidate for this subject's phenotype (Monies et al 2019 – PMID: 31130284).
Sources: Literature
Mendeliome v0.5093 BMP7 Zornitza Stark gene: BMP7 was added
gene: BMP7 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: BMP7 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: BMP7 were set to 32266521; 24429398
Phenotypes for gene: BMP7 were set to Non-syndromic metopic craniosynostosis
Mode of pathogenicity for gene: BMP7 was set to Other
Review for gene: BMP7 was set to RED
Added comment: Non-syndromic metopic craniosynostosis: PMID 32266521 reports rs6127972 as a susceptibility SNP for non-syndromic metopic craniosynostosis

CAKUT: PMID 24429398 1 family with mouse model in large cohort of CAKUT.
Sources: Literature
Mendeliome v0.5091 SMARCC1 Zornitza Stark changed review comment from: Three de novo variants, two LOF, one missense, reported in this hydrocephalus cohort.
Sources: Literature; to: Three de novo variants, two LOF, one missense, reported in this hydrocephalus cohort. Supportive mouse model.
Sources: Literature
Mendeliome v0.5090 SMARCC1 Zornitza Stark gene: SMARCC1 was added
gene: SMARCC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SMARCC1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SMARCC1 were set to 33077954
Phenotypes for gene: SMARCC1 were set to Congenital hydrocephalus
Review for gene: SMARCC1 was set to GREEN
Added comment: Three de novo variants, two LOF, one missense, reported in this hydrocephalus cohort.
Sources: Literature
Mendeliome v0.5085 SYT2 Zornitza Stark changed review comment from: Mono-allelic disease, PMID 25192047: dominant missense variants in SYT2 reported as a rare cause of distal motor neuropathy and myasthenic syndrome, manifesting with stable or slowly progressive distal weakness of variable severity along with presynaptic NMJ impairment in two families. These variants are thought to have a dominant-negative effect on synaptic vesicle exocytosis, although the precise pathomechanism remains to be elucidated.

Bi-allelic disease: 32250532 and 32776697, 8 individuals from 6 families, with biallelic loss of function variants in SYT2, clinically manifesting with severe congenital onset hypotonia and weakness, with variable degrees of respiratory involvement. Electrodiagnostic findings consistent with a presynaptic congenital myasthenic syndrome (CMS) in some. Treatment with an acetylcholinesterase inhibitor pursued in 4 indviduals showed clinical improvement with increased strength and function.; to: Mono-allelic disease, PMID 25192047 and 30533528: dominant missense variants in SYT2 reported as a rare cause of distal motor neuropathy and myasthenic syndrome, manifesting with stable or slowly progressive distal weakness of variable severity along with presynaptic NMJ impairment in three families. These variants are thought to have a dominant-negative effect on synaptic vesicle exocytosis, although the precise pathomechanism remains to be elucidated.

Bi-allelic disease: 32250532 and 32776697, 8 individuals from 6 families, with biallelic loss of function variants in SYT2, clinically manifesting with severe congenital onset hypotonia and weakness, with variable degrees of respiratory involvement. Electrodiagnostic findings consistent with a presynaptic congenital myasthenic syndrome (CMS) in some. Treatment with an acetylcholinesterase inhibitor pursued in 4 indviduals showed clinical improvement with increased strength and function.
Mendeliome v0.5066 SETD1A Zornitza Stark changed review comment from: OMIM has assigned a second phenotype in relation to the syndromic ID cohort reported in PMID 32346159. All variants were predicted to disrupt or delete the SET catalytic domain, and LOF is the established mechanism.

In addition, there are 3 families reported with a predominantly seizure phenotype without ID, PMID 31197650. All the variants are missense and mechanism of pathogenicity is not clearly established, hence it is difficult to know whether these are two distinct conditions or part of a spectrum of severity for SETD1A-related disorders.; to: OMIM has assigned a second phenotype in relation to the syndromic ID cohort reported in PMID 32346159. All variants were predicted to disrupt or delete the SET catalytic domain, and LOF is the established mechanism.

In addition, there are 4 families reported with a predominantly seizure phenotype without ID, PMID 31197650. All the variants are missense and mechanism of pathogenicity is not clearly established, hence it is difficult to know whether these are two distinct conditions or part of a spectrum of severity for SETD1A-related disorders.
Mendeliome v0.5065 SETD1A Zornitza Stark edited their review of gene: SETD1A: Added comment: OMIM has assigned a second phenotype in relation to the syndromic ID cohort reported in PMID 32346159. All variants were predicted to disrupt or delete the SET catalytic domain, and LOF is the established mechanism.

In addition, there are 3 families reported with a predominantly seizure phenotype without ID, PMID 31197650. All the variants are missense and mechanism of pathogenicity is not clearly established, hence it is difficult to know whether these are two distinct conditions or part of a spectrum of severity for SETD1A-related disorders.; Changed phenotypes: Epilepsy, early-onset, with or without developmental delay, MIM# 618832, Neurodevelopmental disorder with speech impairment and dysmorphic facies, MIM# 619056
Mendeliome v0.5063 JARID2 Zornitza Stark edited their review of gene: JARID2: Added comment: 13 additional individuals reported, note CNVs common but LOF sequence variants identified too.; Changed rating: GREEN; Changed publications: 23294540, 33077894
Mendeliome v0.5060 NUDT2 Zornitza Stark edited their review of gene: NUDT2: Added comment: Three individuals from two additional families reported with a different homozygous variant and ID/polyneuropathy phenotype. Upgrade to Green.; Changed rating: GREEN; Changed publications: 27431290, 30059600, 33058507
Mendeliome v0.5060 AFF2 Zornitza Stark changed review comment from: This is classically a triplet expansion disorder. Note one report of an intragenic deletion which segregated with ID in a family, and two truncating variants classified as pathogenic by laboratories in ClinVar.; to: This is classically a triplet expansion disorder. Note one report of an intragenic deletion which segregated with ID in a family, and two truncating variants classified as pathogenic by laboratories in ClinVar. Missense variants found to be over-represented in an autism cohort.
Mendeliome v0.5057 AFF2 Zornitza Stark commented on gene: AFF2: This is classically a triplet expansion disorder. Note one report of an intragenic deletion which segregated with ID in a family, and two truncating variants classified as pathogenic by laboratories in ClinVar.
Mendeliome v0.5050 PI4K2A Zornitza Stark gene: PI4K2A was added
gene: PI4K2A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PI4K2A was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PI4K2A were set to 32418222
Phenotypes for gene: PI4K2A were set to Cutis laxa, intellectual disability, movement disorder
Review for gene: PI4K2A was set to RED
Added comment: Single individual reported with homozygous missense variant and functional data including mouse model.
Sources: Literature
Mendeliome v0.5003 PPP1R13L Zornitza Stark gene: PPP1R13L was added
gene: PPP1R13L was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PPP1R13L was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PPP1R13L were set to 32666529; 28864777
Phenotypes for gene: PPP1R13L were set to Dilated cardiomyopathy, onset in infancy
Review for gene: PPP1R13L was set to GREEN
Added comment: Four families reported in PMID 28864777, but same homozygous variant, identity by descent. Five unrelated families reported in PMID 32666529. Severe progressive DCM with onset in infancy.
Sources: Expert list
Mendeliome v0.4998 CSNK1G1 Zornitza Stark gene: CSNK1G1 was added
gene: CSNK1G1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CSNK1G1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CSNK1G1 were set to 33009664
Phenotypes for gene: CSNK1G1 were set to Global developmental delay; Intellectual disability; Autism; Seizures
Review for gene: CSNK1G1 was set to GREEN
Added comment: Borderline Green/Amber rating.

Gold et al (2020 - PMID: 33009664) report 5 individuals with CSNK1G1 variants, including updated information on a previously reported subject (Martin et al 2014 - PMID: 24463883).

Features included DD (5/5) with associated expressive language delay, ASD (in at least 3/5), seizures (2/5), dysmorphic facial features (4/5 arched eyebrows, 3/5 prominent central incisors, 2/5 epicanthus) and limb anomalies (2/5 - proximally placed thumb, 5th f. clinodactyly, asymmetric overgrowth - the other individual had tapering fingers). GI problems were observed in 4/5. Two individuals had macrocephaly and one had microcephaly. There was no formal developmental assessment although ID might be implied in at least 3 individuals (p1: 20y - single words/regression in walking following a seizure episode, p2: 8y - first words at 5y, assistance to feed, dress and bathe, ASD, p4: 13y - regression, assistance to feed and dress).

CSNK1G1 encodes the gamma-1 isoform of casein kinase 1, a protein involved in growth and cell morphogenesis. The gene has ubiquitous expression, incl. brain. As commented, in brain it regulates phosphorylation of NMDA receptors, playing a role in synaptic transmission (4 articles cited).

One individual had a 1.2 kb deletion spanning exon 3 of CSNK1G1 [chr15:64550952-64552120 - GRCh37]. Parental samples were unavailable for this individual. Four individuals were found to harbor de novo CSNK1G1 variants [NM_022048.3: c.688C>T - p.(Arg230Trp) dn | c.1255C>T - p.(Gln419*) dn | c.1214+5G>A dn with in silico predictions in favor of splice disruption | c.419C>T - p.(Thr140Met) dn].

Arg230Trp is however present once in gnomAD. The stopgain variant is located in the last exon and predicted to skip NMD.

There were no variant studies performed.

The Drosophila gish gene encodes a CK1γ homolog with preferential expression in the mushroom body. Heterozygous and homozygous mutants exhibit impairment in memory retention, more severe in homozygous flies. gish was also identified as a seizure modifier in a fly epilepsy model (heterozygous para mt flies).
Sources: Literature
Mendeliome v0.4993 LMNB1 Zornitza Stark edited their review of gene: LMNB1: Added comment: Additional study PMID 33033404 reporting 7 individuals with recurrent missense variants in this gene and ID/microcephaly phenotype.; Changed publications: 32910914, 16951681, 19151023, 33033404
Mendeliome v0.4991 SREBF1 Zornitza Stark edited their review of gene: SREBF1: Added comment: HMD phenotype: 5 unrelated families reported with heterozygous variants at same residue (p.Arg557Cys and p.Arg557His) and a panepithelial defect involving the oral, nasal, conjunctival, vaginal, cervical, perineal, urethral, and bladder mucosa. Individuals developed cataracts, blindness, nonscarring alopecia, perineal psoriasiform lesions, and follicular keratoses.; Changed publications: 32497488, 31790666, 32902915; Changed phenotypes: IFAP (ichthyosis follicularis, atrichia, and photophobia) syndrome 2, MIM619016, Mucoepithelial dysplasia, hereditary, MIM#158310
Mendeliome v0.4973 SELENON Zornitza Stark Phenotypes for gene: SELENON were changed from to Myopathy, congenital, with fiber-type disproportion, MIM# 255310; Muscular dystrophy, rigid spine, 1, MIM# 602771
Mendeliome v0.4970 SELENON Zornitza Stark reviewed gene: SELENON: Rating: GREEN; Mode of pathogenicity: None; Publications: 11528383, 12192640, 16365872, 21131290, 21131290, 32154989, 32796131; Phenotypes: Myopathy, congenital, with fiber-type disproportion, MIM# 255310, Muscular dystrophy, rigid spine, 1, MIM# 602771; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.4958 TPM3 Zornitza Stark Phenotypes for gene: TPM3 were changed from to CAP myopathy 1, MIM# 609284; Myopathy, congenital, with fiber-type disproportion, MIM# 255310; Nemaline myopathy 1, autosomal dominant or recessive, MIM# 609284; Congenital muscle stiffness
Mendeliome v0.4954 TPM3 Zornitza Stark reviewed gene: TPM3: Rating: GREEN; Mode of pathogenicity: Other; Publications: 26418456, 7704029, 17376686, 18382475, 19487656; Phenotypes: CAP myopathy 1, MIM# 609284, Myopathy, congenital, with fiber-type disproportion, MIM# 255310, Nemaline myopathy 1, autosomal dominant or recessive, MIM# 609284, Congenital muscle stiffness; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.4930 WDPCP Zornitza Stark commented on gene: WDPCP: Four families reported with ciliopathy phenotypes, including BBS, OFD, syndromic retinopathy.
Mendeliome v0.4917 TRAPPC9 Elena Savva edited their review of gene: TRAPPC9: Added comment: PMID: 29187737 - multiple intragenic CNVs reported for this gene; Changed publications: PMID: 29187737
Mendeliome v0.4895 RDH11 Zornitza Stark gene: RDH11 was added
gene: RDH11 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: RDH11 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RDH11 were set to 24916380; 15634683; 30731079; 18326732
Phenotypes for gene: RDH11 were set to Retinal dystrophy, juvenile cataracts, and short stature syndrome, MIM# 616108
Review for gene: RDH11 was set to RED
Added comment: Single family reported with compound heterozygous LOF variants segregating with disease in three siblings. Some functional data, but note mouse KO did not have eye phenotype.
Sources: Expert list
Mendeliome v0.4878 MAG Zornitza Stark changed review comment from: Spastic paraplegia-75 is an autosomal recessive, slowly progressive neurodegenerative disorder characterized by onset of spastic paraplegia and cognitive impairment in childhood. Eight unrelated families reported.; to: Spastic paraplegia-75 is an autosomal recessive, slowly progressive neurodegenerative disorder characterized by onset of spastic paraplegia and cognitive impairment in childhood. Eight unrelated families reported with variable combinations of psychomotor delay, ataxia, eye movement abnormalities, spasticity, dystonia, and neuropathic symptoms.
Mendeliome v0.4874 ITFG2 Zornitza Stark gene: ITFG2 was added
gene: ITFG2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ITFG2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ITFG2 were set to 28397838; https://doi.org/10.1038/s41525-020-00150-z
Phenotypes for gene: ITFG2 were set to Neurodevelopmental abnormality; Intellectual disability; Developmental regression; Ataxia
Review for gene: ITFG2 was set to AMBER
Added comment: ITFG2 was suggested to be a candidate gene for autosomal recessive ID in the study by Harripaul et al (2018 - PMID: 28397838). The authors performed microarray and exome sequencing in 192 consanguineous families and identified a homozygous ITGF2 stopgain variant (NM_018463.3:c.472G>T / p.Glu158*) along with 3 additional variants segregating with ID within an investigated family (PK51). Cheema et al (2020 - https://doi.org/10.1038/s41525-020-00150-z) report briefly on a male, born to consanguineous parents presenting with NDD, seizures, regression and ataxia. There was a similarly affected female sibling. Evaluation of ROH revealed a homozygous ITFG2 nonsense variant [NM_018463.3:c.361C>T / p.(Gln121*)]. Families in this study were investigated by trio WES or WGS. Evaluation of data of the same lab revealed 3 additional unrelated subjects with overlapping phenotypes, notably NDD and ataxia. These individuals were - each - homozygous for pLoF variants [NM_018463.3:c.848-1G>A; NM_018463.3:c.704dupC, p.(Ala236fs), NM_018463.3:c.1000_1001delAT, p.(Ile334fs)]. As discussed in OMIM, ITFG2 encodes a subunit of the KICSTOR protein complex, having a role in regulating nutrient sensing by MTOR complex-1 (Wolfson et al 2017 - PMID : 28199306).

Rated Amber as Cheema et al report on diagnostic outcomes and multiple candidate genes as part of a heterogenous cohort and details are therefore limited.
Sources: Literature
Mendeliome v0.4872 SHMT2 Zornitza Stark gene: SHMT2 was added
gene: SHMT2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SHMT2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SHMT2 were set to 33015733
Phenotypes for gene: SHMT2 were set to Congenital microcephaly; Infantile axial hypotonia; Spastic paraparesis; Global developmental delay; Intellectual disability; Abnormality of the corpus callosum; Abnormal cortical gyration; Hypertrophic cardiomyopathy; Abnormality of the face; Proximal placement of thumb; 2-3 toe syndactyly
Review for gene: SHMT2 was set to GREEN
Added comment: García‑Cazorla et al. (2020 - PMID: 33015733) report 5 individuals (from 4 families) with a novel brain and heart developmental syndrome caused by biallelic SHMT2 pathogenic variants.

All affected subjects presented similar phenotype incl. microcephaly at birth (5/5 with OFC < -2 SD though in 2/5 cases N OFC was observed later), DD and ID (1/5 mild-moderate, 1/5 moderate, 3/5 severe), motor dysfunction in the form of spastic (5/5) paraparesis, ataxia/dysmetria (3/4), intention tremor (in 3/?) and/or peripheral neuropathy (2 sibs). They exhibited corpus callosum hypoplasia (5/5) and perisylvian microgyria-like pattern (4/5). Cardiac problems were reported in all, with hypertrophic cardiomyopathy in 4/5 (from 3 families) and atrial-SD in the 5th individual (1/5). Common dysmorphic features incl. long palpebral/fissures, eversion of lateral third of lower eylids, arched eyebrows, long eyelashes, thin upper lip, short Vth finger, fetal pads, mild 2-3 toe syndactyly, proximally placed thumbs.

Biallelic variants were identified following exome sequencing in all (other investigations not mentioned). Identified variants were in all cases missense SNVs or in-frame del, which together with evidence from population databases and mouse model might suggest a hypomorphic effect of variants and intolerance/embryonic lethality for homozygous LoF ones.

SHMT2 encodes the mitohondrial form of serine hydroxymethyltransferase. The enzyme transfers one-carbon units from serine to tetrahydrofolate (THF) and generates glycine and 5,10,methylene-THF.

Mitochondrial defect was suggested by presence of ragged red fibers in myocardial biopsy of one patient. Quadriceps and myocardial biopsies of the same individual were overall suggestive of myopathic changes.

While plasma metabolites were within N range and SHMT2 protein levels not significantly altered in patient fibroblasts, the authors provide evidence for impaired enzymatic function eg. presence of the SHMT2 substrate (THF) in patient but not control (mitochondria-enriched) fibroblasts , decrease in glycine/serine ratios, impared folate metabolism. Patient fibroblasts displayed impaired oxidative capacity (reduced ATP levels in a medium without glucose, diminished oxygen consumption rates). Mitochondrial membrane potential and ROS levels were also suggestive of redox malfunction.

Shmt2 ko in mice was previously shown to be embryonically lethal attributed to severe mitochondrial respiration defects, although there was no observed brain metabolic defect.

The authors performed Shmt2 knockdown in motoneurons in Drosophila, demonstrating neuromuscular junction (# of satellite boutons) and motility defects (climbing distance/velocity).
Sources: Literature
Mendeliome v0.4867 CCT2 Zornitza Stark gene: CCT2 was added
gene: CCT2 was added to Mendeliome. Sources: NHS GMS
Mode of inheritance for gene: CCT2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CCT2 were set to 27645772; 29450543
Phenotypes for gene: CCT2 were set to Leber's congenital amaurosis
Review for gene: CCT2 was set to RED
Added comment: Single family reported with compound het missense variants, functional data, including animal model.
Sources: NHS GMS
Mendeliome v0.4862 VPS41 Zornitza Stark gene: VPS41 was added
gene: VPS41 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: VPS41 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: VPS41 were set to 32808683
Phenotypes for gene: VPS41 were set to Dystonia; intellectual disability
Review for gene: VPS41 was set to RED
Added comment: Single individual reported with homozygous canonical splice site variant resulting in exon 7 skipping, and global developmental delay and generalized dystonia. He attained a few words and voluntary limb movements but never sat unsupported. He had pale optic discs and an axonal neuropathy. From 6 years of age, his condition began to deteriorate, with reduced motor abilities and alertness. An MRI of the brain showed atrophy of the superior cerebellar vermis and slimming of the posterior limb of the corpus callosum. VPS41 is component of the HOPS complex and other genes in the complex have been implicated in movement disorders.
Sources: Literature
Mendeliome v0.4860 VPS16 Zornitza Stark gene: VPS16 was added
gene: VPS16 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: VPS16 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: VPS16 were set to 32808683
Phenotypes for gene: VPS16 were set to Dystonia
Added comment: 18 individuals reported with high-impact variants in VPS16 and a progressive early onset dystonia (median age 12 years, range 3–50 years), with prominent oromandibular, bulbar, cervical, and upper limb involvement. Progressive generalization ensued, although most remained ambulant, and only a minority (16%) lost the ability to walk in adulthood. Additional clinical features of mild to moderate intellectual disability and neuropsychiatric symptoms were present in approximately one‐third. In 4 individuals, magnetic resonance imaging (MRI) showed bilateral and symmetrical hypointensity of the globi pallidi and sometimes also the midbrain and dentate nuclei, suggestive of iron deposition. Mild generalized cerebral atrophy was also apparent in 4 individuals.
Sources: Literature
Mendeliome v0.4843 ABCC6 Kristin Rigbye changed review comment from: All conditions are regarded as a single disorder at variable ends of the phenotypic spectrum. The same variants have been reported in all three conditions, however reports for AD PE are consistently from older papers (pre-2005) and may have missed a 2nd hit (OMIM). More recent papers consistently report this condition as autosomal recessive (PMID: 28102862).; to: All conditions are regarded as a single disorder at variable ends of the phenotypic spectrum. The same variants have been reported in all three conditions, however reports for AD PXE are consistently from older papers (pre-2005) and may have missed a 2nd hit (OMIM). More recent papers consistently report this condition as autosomal recessive (PMID: 28102862).

In addition to missense, PTCs and splice variants, deletions and duplications in this gene comprise a significant proportion of variants and are a recognised mechanism / cause of PXE.
Mendeliome v0.4841 ATP1A4 Zornitza Stark gene: ATP1A4 was added
gene: ATP1A4 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ATP1A4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ATP1A4 were set to 32549268
Phenotypes for gene: ATP1A4 were set to Hemiplegic migraine
Review for gene: ATP1A4 was set to RED
Added comment: Single family reported where missense variant segregated with hemiplegic migraine in four affected individuals.
Sources: Literature
Mendeliome v0.4829 NEK9 Zornitza Stark edited their review of gene: NEK9: Added comment: Another Saudi family described with which 2 sisters and a female cousin who had a similar disorder characterised by arthrogryposis apparent since early childhood, avascular necrosis of the hip (Perthes disease), and upward gaze palsy. Homozygous missense variant segregated with the phenotype. Given the small number of reports, it is unclear whether this represents a distinct association is part of a spectrum with includes the more severe phenotype described in the Irish traveller families.; Changed publications: 26908619, 21271645; Changed phenotypes: Lethal congenital contracture syndrome 10, MIM# 617022, Arthrogryposis, Perthes disease, and upward gaze palsy, MIM# 614262, Skeletal dysplasia
Mendeliome v0.4821 AGAP1 Zornitza Stark gene: AGAP1 was added
gene: AGAP1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: AGAP1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: AGAP1 were set to 31700678; 25666757; 30472483
Phenotypes for gene: AGAP1 were set to Cerebral palsy
Review for gene: AGAP1 was set to AMBER
Added comment: Two individuals reported with de novo variants in this gene and a CP phenotype. Rare variants over-represented in a case-control study. Supportive zebrafish model. Another individual with a deletion (+1 other gene) reported with ID and autism.
Sources: Literature
Mendeliome v0.4811 FOXC1 Zornitza Stark changed review comment from: Well established gene-disease association.; to: Well established gene-disease association supported by case-level data and experimental data, including animal models.
Mendeliome v0.4807 ALG14 Zornitza Stark changed review comment from: 5 individuals from unrelated families described in the literature: one with myasthenic syndrome, no report of ID; second with predominantly ID phenotype; and three more with a neurodegenerative phenotype. ALG14 is part of the UDP-GlcNAc transferase, which catalyzes a key step in endoplasmic reticulum N-linked glycosylation; to: 5 individuals from unrelated families described in the literature: one with myasthenic syndrome, no report of ID; second with predominantly ID phenotype; and three more with a neurodegenerative phenotype. ALG14 is part of the UDP-GlcNAc transferase, which catalyzes a key step in endoplasmic reticulum N-linked glycosylation. The three OMIM disorders may represent a spectrum of severity for CDG.
Mendeliome v0.4784 RNPC3 Zornitza Stark gene: RNPC3 was added
gene: RNPC3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RNPC3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RNPC3 were set to 29866761; 32462814
Phenotypes for gene: RNPC3 were set to Growth hormone deficiency
Review for gene: RNPC3 was set to AMBER
Added comment: Two families reported. PMID 29866761: isolated growth deficiency and pituitary hypoplasia. PMID 32462814: growth hormone deficiency, central congenital hypothyroidism, congenital cataract, developmental delay/intellectual deficiency and delayed puberty. Full spectrum of phenotype unclear at present.
Sources: Literature
Mendeliome v0.4783 PRICKLE3 Teresa Zhao gene: PRICKLE3 was added
gene: PRICKLE3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PRICKLE3 was set to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Publications for gene: PRICKLE3 were set to 32516135
Phenotypes for gene: PRICKLE3 were set to Leber’s hereditary optic neuropathy MIM#535000
Review for gene: PRICKLE3 was set to AMBER
Added comment: Reported as X-linked LHON modifier (c.157C>T, p.Arg53Trp) in PRICKLE3 in 3 Chinese families. All affected individuals carried both ND4 11778G>A and p.Arg53Trp mutations, while subjects bearing only a single mutation exhibited normal vision.

Defective assembly, stability, and function of ATP synthase observed using Lymphoblastoid cell lines from one of the families.

This finding indicated that the p.Arg53Trp mutation acted in synergy with the m.11778G>A mutation and deteriorated mitochondrial dysfunctions necessary for the expression of LHON.

Prickle3-deficient mice exhibited pronounced ATPase deficiencies.
Sources: Literature
Mendeliome v0.4783 GBF1 Paul De Fazio changed review comment from: Four unrelated families with individuals affected by sporadic or dominant Distal hereditary motor neuropathies (HMNs) or axonal Charcot-Marie-Tooth neuropathy (CMT2). 3 missense variants (1 de novo) and 1 nonsense variant (de novo). Authors observed marked increase in Golgi fragmentation in primary fibroblasts derived from all affected individuals.
Sources: Literature; to: Four unrelated families with individuals affected by sporadic or dominant Distal hereditary motor neuropathies (HMNs) or axonal Charcot-Marie-Tooth neuropathy (CMT2). 3 missense variants (1 de novo) and 1 nonsense variant (de novo).

Age of onset varied from childhood (nonsense variant) to 50s. Authors observed marked increase in Golgi fragmentation in primary fibroblasts derived from all affected individuals.
Sources: Literature
Mendeliome v0.4781 MBTPS1 Zornitza Stark gene: MBTPS1 was added
gene: MBTPS1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MBTPS1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MBTPS1 were set to 32857899; 32420688; 30046013
Phenotypes for gene: MBTPS1 were set to Skeletal dysplasia
Review for gene: MBTPS1 was set to GREEN
Added comment: Three unrelated individuals reported with bi-allelic variants in this gene and a skeletal dysplasia, one described with SRS-like features. Elevated blood lysosomal enzymes are also a feature.
Sources: Literature
Mendeliome v0.4780 GBF1 Paul De Fazio gene: GBF1 was added
gene: GBF1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GBF1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: GBF1 were set to 32937143
Phenotypes for gene: GBF1 were set to Axonal Neuropathy
Review for gene: GBF1 was set to GREEN
gene: GBF1 was marked as current diagnostic
Added comment: Four unrelated families with individuals affected by sporadic or dominant Distal hereditary motor neuropathies (HMNs) or axonal Charcot-Marie-Tooth neuropathy (CMT2). 3 missense variants (1 de novo) and 1 nonsense variant (de novo). Authors observed marked increase in Golgi fragmentation in primary fibroblasts derived from all affected individuals.
Sources: Literature
Mendeliome v0.4770 NEMF Zornitza Stark changed review comment from: Nine individuals from 7 unrelated families reported with a mixed CNS/PNS phenotype. 7/9 had ID, 4/9 had formal assessments demonstrating axonal neuropathy, 3/9 had ataxia; muscular atrophy, hypotonia, respiratory distress, scoliosis also described in some. Three independently generated mouse models had progressive motor neuron degeneration.
Sources: Literature; to: Nine individuals from 7 unrelated families reported with a mixed CNS/PNS phenotype. 7/9 had ID, 4/9 had formal assessments demonstrating axonal neuropathy, 3/9 had ataxia; muscular atrophy, hypotonia, respiratory distress, scoliosis also described in some. Three independently generated mouse models had progressive motor neuron degeneration.

Single individual with de novo variant reported, postulated dominant negative effect. Evidence for mono allelic variants causing disease is limited.
Sources: Literature
Mendeliome v0.4749 SETD1A Zornitza Stark gene: SETD1A was added
gene: SETD1A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SETD1A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SETD1A were set to 31197650; 32346159
Phenotypes for gene: SETD1A were set to Epilepsy, early-onset, with or without developmental delay, MIM# 618832
Review for gene: SETD1A was set to GREEN
Added comment: 19 unrelated individuals reported with de novo variants in this gene and a neurodevelopmental phenotype, primarily manifesting and ID and seizures. LOF mechanism supported by functional data. Three mouse models. SNPs in this gene have also been associated with risk of developing schizophrenia.
Sources: Literature
Mendeliome v0.4743 SCN1A Zornitza Stark edited their review of gene: SCN1A: Added comment: Note we have reported the association with AMC previously in PMID 29543227 (Supplementary info) in an infant presenting with AMC and severe EE, and de novo p.(Ile1347Asn) variant which at the time was thought to only partially explain the phenotype, but in light of this new report, likely fully explains the phenotype. Given the presence of severe seizure disorder in the two infants who were phenotyped in the newborn period, this likely represents the severe end of the spectrum of SCN1A-related disorders rather than a distinct association.; Changed phenotypes: Epileptic encephalopathy, early infantile, 6 (Dravet syndrome), MIM# 607208, Genetic Epilepsy Febrile Seizures plus (GEFS+) Syndrome, Febrile seizures, Arthrogryposis multiplex congenita
Mendeliome v0.4743 PRKD1 Zornitza Stark changed review comment from: PMID: 32817298 (2020) - Two additional unrelated cases with de novo variants, c.1774G>C and c.1808G>A, and telangiectasia, ectodermal dysplasia, brachydactyly and congenital heart disease. Functional analysis using in vitro kinase assays with recombinant proteins showed that the c.1808G>A, p.(Arg603His) variant represents a gain-of-function mutation encoding an enzyme with a constitutive, lipid-independent catalytic activity. The c.1774G>C, p.(Gly592Arg) variant in contrast shows a defect in substrate phosphorylation representing a loss-of-function mutation.

c.1774G>C, p.(Gly592Arg) is recurrent, reported in 3/5 individuals.; to: PMID: 27479907 (2016): three individuals reported, two with the c.1774G>A variant and one with the c.896T>G variant. All had congenital heart disease, two had some developmental delay, and two had variable features of ectodermal dysplasia, including sparse hair, dry skin, thin skin, fragile nails, premature loss of primary teeth, and small widely spaced teeth; the third individuals had a 'disorganized eyebrow.'

PMID: 32817298 (2020) - Two additional unrelated cases with de novo variants, c.1774G>C and c.1808G>A, and telangiectasia, ectodermal dysplasia, brachydactyly and congenital heart disease. Functional analysis using in vitro kinase assays with recombinant proteins showed that the c.1808G>A, p.(Arg603His) variant represents a gain-of-function mutation encoding an enzyme with a constitutive, lipid-independent catalytic activity. The c.1774G>C, p.(Gly592Arg) variant in contrast shows a defect in substrate phosphorylation representing a loss-of-function mutation.

c.1774G>C, p.(Gly592Arg) is recurrent, reported in 3/5 individuals.
Mendeliome v0.4724 IGSF10 Bryony Thompson gene: IGSF10 was added
gene: IGSF10 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: IGSF10 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: IGSF10 were set to 27137492; 31042289
Phenotypes for gene: IGSF10 were set to delayed puberty; hypogonadotropic hypogonadism; primary ovary insufficiency
Review for gene: IGSF10 was set to AMBER
Added comment: PMID: 27137492 - 4 Finnish families segregating p.Glu161Lys, but Finnish MAF in ExAC is 2%. Another six additional families with a possible missense, but variants are seen in ExAC suggesting incomplete penetrance. Supporting in vitro functional assays and zebrafish model. PMID: 31042289 - 2 unrelated consanguineous families with homozygous variants and family with a heterozygous frameshift and apparent incomplete penetrance.
Sources: Literature
Mendeliome v0.4687 RPL9 Zornitza Stark Added comment: Comment when marking as ready: Second individual reported with same c.-2+1G>C variant in the 5′UTR of RPL9, deleterious effect demonstrated, functional data, upgrade to Amber.
Mendeliome v0.4685 RPL9 Arina Puzriakova changed review comment from: PMID: 31799629 (2020) - One individual diagnosed with Diamond Blackfan anaemia carrying a de novo variant (c.-2+1G>C) in the 5′UTR of RPL9, predicted to affect the donor splice site of exon 1. Functional studies showed the variant impairs processing of pre-rRNA during ribosome biogenesis, stabilises TP53 and impairs the proliferation and differentiation of erythroid cells. Zebrafish models of RPL9 LoF recapitulate the anaemia phenotype.; to: PMID: 31799629 (2020) - Female infant diagnosed with Diamond-Blackfan anaemia carrying a de novo variant (c.-2+1G>C) in the 5′UTR of RPL9, predicted to affect the donor splice site of exon 1. Phenotypic overlap can be seen with the previously reported case with the same variant, including colitis, thumb anomaly, and microcephaly. Functional studies showed the variant impairs processing of pre-rRNA during ribosome biogenesis, stabilises TP53 and impairs the proliferation and differentiation of erythroid cells. Zebrafish models of RPL9 LoF recapitulate the anaemia phenotype.
Mendeliome v0.4664 FOXL2 Ain Roesley changed review comment from: PMID: 31077882; 19x probands reported, AD.

PMID: 18642388;
BPES type I : Mutations predicted to result in proteins with truncation before the poly-Ala tract
BPES type II: poly-Ala expansions (WT poly-Ala is between aa 221-234)
Exceptions: Truncated proteins with complete forkhead and poly-Ala domains, can be either Type I and II

NOTE: only 1 family reported for AR (PMID: 17089161); to: PMID: 31077882; >100 probands reported, AD.

PMID: 18642388;
BPES type I : Mutations predicted to result in proteins with truncation before the poly-Ala tract
BPES type II: poly-Ala expansions (WT poly-Ala is between aa 221-234)
Exceptions: Truncated proteins with complete forkhead and poly-Ala domains, can be either Type I and II

NOTE: only 1 family reported for AR (PMID: 17089161)
Mendeliome v0.4647 COCH Zornitza Stark changed review comment from: Mono-allelic variants: Over 50 affected individuals from more than 10 families reported, mouse model. Dominant negative effect postulated.

Bi-allelic variants: three families reported with bi-allelic variants in this gene and deafness. All variants are LOF, some functional data. PMIDs 29449721, 32939038, 32562050.; to: Mono-allelic variants: Over 50 affected individuals from more than 10 families reported, mouse model. Dominant negative effect postulated.

Bi-allelic variants: three families reported with bi-allelic variants in this gene and deafness. All variants are LOF, some functional data. PMIDs 29449721, 32939038, 32562050.
Mendeliome v0.4647 COCH Zornitza Stark changed review comment from: Over 50 affected individuals from more than 10 families reported, mouse model. Single family with two siblings reported with bi-allelic variants in this gene and deafness (homozygous LOF) in PMID 29449721, evidence for bi-allelic disease is limited.; to: Mono-allelic variants: Over 50 affected individuals from more than 10 families reported, mouse model. Dominant negative effect postulated.

Bi-allelic variants: three families reported with bi-allelic variants in this gene and deafness. All variants are LOF, some functional data. PMIDs 29449721, 32939038, 32562050.
Mendeliome v0.4623 COL4A5 Zornitza Stark Phenotypes for gene: COL4A5 were changed from to Alport syndrome 1, X-linked, MIM# 301050
Mendeliome v0.4621 COL4A5 Zornitza Stark reviewed gene: COL4A5: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Alport syndrome 1, X-linked, MIM# 301050; Mode of inheritance: X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Mendeliome v0.4531 IBA57 Zornitza Stark changed review comment from: More than 15 families reported with bi-allelic variants in this gene and a severe neurodegenerative disorder characterised by loss of previously acquired developmental milestones in the first months or years of life. Some affected individuals have normal development in early infancy before the onset of symptoms, whereas others show delays from birth. Features included loss of motor function, spasticity, pyramidal signs, loss of speech, and cognitive impairment. The disease course is highly variable: some individuals die of respiratory failure early in childhood, whereas some survive but may be bedridden with a feeding tube. Less commonly, some individuals may survive and have a stable course with motor deficits and mild or even absent cognitive impairment, although there may be fluctuating symptoms, often in response to infection. Other variable features include visual problems and seizures. Brain imaging shows diffuse leukodystrophy in the subcortical region, brainstem, cerebellum, and spinal cord. Laboratory studies tend to show increased lactate and CSF glycine, and decreased activity of mitochondrial complexes I and II, although these findings are also variable.; to: MMDS3: More than 15 families reported with bi-allelic variants in this gene and a severe neurodegenerative disorder characterised by loss of previously acquired developmental milestones in the first months or years of life. Some affected individuals have normal development in early infancy before the onset of symptoms, whereas others show delays from birth. Features included loss of motor function, spasticity, pyramidal signs, loss of speech, and cognitive impairment. The disease course is highly variable: some individuals die of respiratory failure early in childhood, whereas some survive but may be bedridden with a feeding tube. Less commonly, some individuals may survive and have a stable course with motor deficits and mild or even absent cognitive impairment, although there may be fluctuating symptoms, often in response to infection. Other variable features include visual problems and seizures. Brain imaging shows diffuse leukodystrophy in the subcortical region, brainstem, cerebellum, and spinal cord. Laboratory studies tend to show increased lactate and CSF glycine, and decreased activity of mitochondrial complexes I and II, although these findings are also variable.

SPG74: Three families with spastic paraparesis as a feature of the condition.
Mendeliome v0.4526 NSUN3 Zornitza Stark edited their review of gene: NSUN3: Added comment: Second family reported with early-onset mitochondrial encephalomyopathy and seizures.; Changed publications: 27356879, 32488845; Changed phenotypes: Combined oxidative phosphorylation deficiency 48, MIM# 619012
Mendeliome v0.4525 LIFR Zornitza Stark edited their review of gene: LIFR: Added comment: Bi-allelic variants: At least 28 unique variants (nonsense, frameshift, splicing, missense, gross deletions) have been reported in individuals with Stuve-Wiedemann syndrome/Schwartz-Jampel type 2 syndrome, 22 of which are predicted to cause LOF, suggesting homozygous LOF is the mechanism of disease for this gene. Variants in this gene have been reported in at least 22 probands in four publications.

Mono-allelic variants: associated with CAKUT in 4 individuals, mouse model recapitulates phenotype.; Changed rating: GREEN; Changed publications: 14740318, 20447141, 24988918, 29620724, 28334964; Changed phenotypes: Stuve-Wiedemann syndrome/Schwartz-Jampel type 2 syndrome, MIM# 601559, CAKUT; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.4520 SLC12A2 Zornitza Stark edited their review of gene: SLC12A2: Added comment: Monoallelic :
DD/ID was a feature in >= 6 individuals with monoallelic de novo SLC12A2. An individual with an exon 22 truncating variant was reported to have normal milestones and cognitive function. Exon 21 variants have been described in individuals with rather isolated hearing impairment (possibly some associated motor delay, but normal cognition). Hearing impairment was also reported in 2/6 patients with variants in other exons (1 missense / 1 frameshift).

Biallelic :
DD/ID was reported in at least 3 individuals in literature. Hearing impairment has been reported on 2 occasions (although this was not probably evaluated in all subjects).

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Monoallelic SLC12A2 mutations :

► Individuals with de novo mutations and developmental disorder were first identified by the DDD study (2017 - PMID: 28135719). 5 of them have been reported in detail by McNeill et al (below).

► McNeill et al (2020 - PMID: 32658972) report on 6 individuals with neurodevelopmental disorder due to de novo SLC12A2 mutation. All presented DD or ID ranging from mild to severe. ASD was reported in 3/6. Sensorineural hearing loss was a feature in 2/6 with the remaining having normal formal evaluations. Brain, cardiac and/or additional malformations were reported in a single individual. Following non-diagnostic prior work-up (CMA, FMR1 or other investigations) trio exome sequencing revealed missense (4/6) or truncating variants (2/6).

Three additional individuals (incl. a father and his son) with missense variants in exon 21 (NM_001046.3 / p.Glu979Lys and p.Glu980Lys) presented with bilateral sensorineural hearing loss. Speech and/or motor delay reported in these cases were attributed to the hearing impairment/vestibular arreflexia (cognitive abilities not tested).

SLC12A2 encodes sodium-potassium-chloride transporter 1 (also NKCC1).

The GTEx project has identified 8 isoforms. In brain both exon 21-containing/deleted isoforms are expressed (cited Morita et al 2014 - PMID: 24695712). As the authors discuss, RNA-seq of the developing mouse cochlea suggests that the exon 21 containing isoform is the single transcript expressed. Evidence from RNA-seq data (BrainSpan project) and literature suggests that the significant amounts of exon 21 lacking isoforms in fetal brain compensate for the deleterious effects of exon 21 variants and explain the lack of NDD in relevant patients.

Slc12a2 (NKCC1) null mouse model has demonstrated that the transporter plays a role in accumulation of the potassium rich endolymph in the inner ear, with NKCC1 absence causing sensorineural deafness and imbalance. Slc12a2 display cochlear malformations, loss of hair cells and hearing impairment (cited Delpire et al 1999 - PMID: 10369265). The brain phenotype has not been studied extensively, although loss of Slc12a2 has been shown to inhibit neurogenesis (cited: Magalhães and Rivera et al. - PMID: 27582690).

Slc12a2 null zebrafish display a collapse of the otic vesicle and reduced endolymph (Abbas and Whitfield, 2009 - PMID: 19633174) relevant to the human hearing disorder.

In vitro assessment of NKCC1 ion transporter function in Xenopus laevis, supported the deleterious effect of the identified variants (significant reduction in K+ influx). Using available single cell RNA-seq data the authors further demonstrated that SLC12A2 expressing cells display transcriptomic profiles reflective of active neurogenesis.

► Delpire et al (2016 - PMID: 27900370 - not reviewed in detail) described a 13 y.o. girl harboring a de novo 11-bp deletion in SLC12A2 exon 22. This individual reached developmental milestones on time and had a NORMAL cognitive function. Hearing was seemingly normal. Features included orthostatic intolerance, respiratory weakness, multiple endocrine abnormalities, pancreatic insufficiency and multiorgan failure incl. gut and bladder. Exome in the proband, parents and 3 unaffected sibs suggested SLC12A2 as the only candidate for her phenotype. Functional analyses in Xenopus laevis oocytes suggested that a non functional transporter was expressed and trafficked to the membrane as the wt. Detection of the truncated protein at higher molecular sizes suggested either enhanced dimerization or misfolded aggregate. There was no dominant-negative effect of mutant NKCC1. In patient fibroblasts a reduced total and NKCC1-mediated K+ influx.

► Mutai et al (2020 - PMID: 32294086) report on several individuals from 4 families, harboring variants within exon 21 or - in one case - at it's 3' splice-site (leading to skipping oe this exon at the mRNA level). All subjects were investigated for severe/profound hearing loss (in line with the role of exon 21-included isoforms in cochlea. The variant segregated with hearing impairment in 3 generations of a family while in all other subjects the variant had occured as de novo event. Despite motor delays (e.g. the subject from fam2 could not hold head or sit at the age of 10m / the proband in Fam3 was able to hold his head and walk at 6 and 20 m respectively) behavior and cognition were commented to be within normal range.


-----

Biallelic SLC12A2 mutations:

► Anazi et al (2017 - PMID: 29288388) briefly reported on a 3 y.o. boy (17DG0776) with central hypotonia, neonatal respiratory distress, failure to thrive, global DD and microcephaly and a skeletal survey suggestive of osteopenia. After non-diagnostic prior investigations (CMA revealing a 1p duplication classified as VUS, extensive metabolic workup), WES revealed a homozygous SLC12A2 splicing variant [NM_001046.2:c.2617-2A>G].

► Macnamara et al (2019 - PMID: 30740830) described a 5.5 y.o. male with sensorineural hearing loss, profound delays in all developmental areas among several other features (choanal atresia, failure to thrive, respiratory problems, absent sweat and tear production or salivation, GI abnormalities). Genetic testing for several disorders considered (cystic fibrosis, spinal muscular atrophy, sequencing and del/dup analysis of mtDNA) was normal. CMA revealed paternal uniparental isodisomy for chr. 5 and WGS a homozygous 22kb deletion in SLC12A2. This was followed by confirmation of homozygosity in the proband, heterozygosity of the unaffected father, delineation of breakpoints (chr5:127441491-127471419). mRNA studies in patient fibroblasts confirmed deletion of ex2-7, splicing of ex1 directly to ex8 and introduction of a premature stop codon in ex9. qRT-PCR confirmed that mRNA is likely subjected to NMD (expression ~80% of control). Western blot confirmed absence of the protein in the patient's fibroblasts. Again mouse models are thought to recapitulate the hearing defect but also the deficient saliva production (cited Evans et al 2000 - PMID: 10831596). Again the authors speculate a role of SLC12A2 in brain development based on evidence from murine models (migration, dendritic growth, increse in neuron density through regulation of GABAergic signalling (Young et al 2012 - PMID: 23015452). Hypotheses are also made on a regulatory relationship between NKCC1 and CFTR based on mRNA data from the ko mouse model.

► Stödberg et al (2020 - PMID: 32754646) reported 2 sibs with a complex neurodevelopmental disorder due to compound heterozygosity for a frameshift SLC12A2 variant and a splicing one (NM_001046:c.1431delT and c.2006-1G>A). Both presented hypotonia, neonatal S. aureus parotitis and respiratory problems (incl. apneas). While the older sib died at the age of 22 days, the younger one had persistent respiratory issues incl. a dry respiratory mucosa motivating metabolic, immunology investigations and testing for CF. She displayed microcephaly (OFC -2.5 SD, H was also -3.5SD), severe intellectual disability. MRI was suggestive of white matter and basal ganglia abnormalities. Other features incl. hearing impairment, and lack of tears,saliva and sweat, constipation and intestinal malrotation. There was facial dysmorphism. The variants were the only retained following WGS of the 2 affected sisters, parents and an unaffected brother. The splicing variant was shown to result in skipping of exon 13, while the indel in NMD. Again the authors discuss that the deficient saliva production, impaired hearing and GI problems are recapitulated in the mouse model (several refs provided).; Changed rating: GREEN; Changed publications: 28135719, 32658972, 27900370, 32294086, 29288388, 30740830, 32754646; Changed phenotypes: Kilquist syndrome, deafness, intellectual disability, dysmorphic features, absent salivation, ectodermal dysplasia, constipation, intestinal malrotation, multiple congenital anomalies; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.4503 ZMYM2 Zornitza Stark gene: ZMYM2 was added
gene: ZMYM2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ZMYM2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ZMYM2 were set to 32891193
Phenotypes for gene: ZMYM2 were set to Congenital anomalies of kidney and urinary tract; Neurodevelopmental disorder
Review for gene: ZMYM2 was set to GREEN
Added comment: Heterozygous pathogenic (pLoF) ZMYM2 variants have been reported in individuals with syndromic presentation including CAKUT (in several cases) and variable neurological manifestations among extra-renal features.

--

Connaughton et al (2020 - PMID: 32891193) report on 19 individuals (from 15 unrelated families) with heterozygous pathogenic ZMYM2 variants.

Affected individuals from 7 families presented with CAKUT while all of them displayed extra-renal features. Neurological manifestations were reported in 16 individuals from 14 families (data not available for 1 fam), among others hypotonia (3/14 fam), speech delay (4/14 fam), global DD (9/14 fam), ID (4/14 fam), microcephaly (4/14 fam). ASD was reported in 4 fam (4 indiv). Seizures were reported in 2 fam (2 indiv). Variable other features included cardiac defects, facial dysmorphisms, small hands and feet with dys-/hypo-plastic nails and clinodactyly.

14 pLoF variants were identified, in most cases as de novo events (8 fam). In 2 families the variant was inherited from an affected parent. Germline mosaicism occurred in 1 family.

The human disease features were recapitulated in a X. tropicalis morpholino knockdown, with expression of truncating variants failing to rescue renal and craniofacial defects. Heterozygous Zmym2-deficient mice also recapitulated the features of CAKUT.

ZMYM2 (previously ZNF198) encodes a nuclear zinc finger protein localizing to the nucleus (and PML nuclear body).

It has previously been identified as transcriptional corepressor interacting with nuclear receptors and the LSD1-CoREST-HDAC1 complex. It has also been shown to interact with FOXP transcription factors.

The authors provide evidence for loss of interaction of the truncated ZMYM2 with FOXP1 (mutations in the latter having recently been reported in syndromic CAKUT).
Sources: Literature
Mendeliome v0.4501 MTX2 Zornitza Stark gene: MTX2 was added
gene: MTX2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MTX2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MTX2 were set to 32917887
Phenotypes for gene: MTX2 were set to Mandibuloacral dysplasia; lipodystrophy; arterial calcification
Review for gene: MTX2 was set to GREEN
Added comment: Seven individuals from 5 unrelated families reported with severe progeroid form of MAD with growth retardation, small viscerocranium with mandibular underdevelopment, distal acro-osteolyses, lipodystrophy, altered skin pigmentation, renal focal glomerulosclerosis, and extremely severe hypertension in most cases, eventually associated with disseminated arterial calcification. Loss of MTX2 in patients' primary fibroblasts led to loss of Metaxin-1 (MTX1) and mitochondrial dysfunction, including network fragmentation and oxidative phosphorylation impairment. Furthermore, patients' fibroblasts were resistant to induced apoptosis, leading to increased cell senescence and mitophagy and reduced proliferation.
Sources: Literature
Mendeliome v0.4500 RREB1 Zornitza Stark gene: RREB1 was added
gene: RREB1 was added to Mendeliome. Sources: Literature
SV/CNV tags were added to gene: RREB1.
Mode of inheritance for gene: RREB1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RREB1 were set to 32938917
Phenotypes for gene: RREB1 were set to Noonan syndrome-like disorder
Review for gene: RREB1 was set to RED
Added comment: Single individual reported with Noonan syndrome-like features and a deletion encompassing RREB1. Overlapping deletions in publicly reported databases examined, and RREB1 postulated to be the key gene. Rreb1 hemizygous mice display orbital hypertelorism and age dependent cardiac hypertrophy. RREB1 recruits SIN3A and KDM1A to an RRE in target promoters in human and murine cells to control histone H3K4 methylation of MAPK pathway genes.

In summary, single well phenotyped individual with a CNV and experimental data to support gene-disease association.
Sources: Literature
Mendeliome v0.4497 NEMF Zornitza Stark gene: NEMF was added
gene: NEMF was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NEMF was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NEMF were set to 32934225
Phenotypes for gene: NEMF were set to Intellectual disability; neuropathy
Review for gene: NEMF was set to GREEN
Added comment: Nine individuals from 7 unrelated families reported with a mixed CNS/PNS phenotype. 7/9 had ID, 4/9 had formal assessments demonstrating axonal neuropathy, 3/9 had ataxia; muscular atrophy, hypotonia, respiratory distress, scoliosis also described in some. Three independently generated mouse models had progressive motor neuron degeneration.
Sources: Literature
Mendeliome v0.4493 TAOK1 Zornitza Stark changed review comment from: Monoallelic de novo variants reported in 8 individuals with nonspecific phenotype of intellectual disability and hypotonia. Most were LOF, 2 missense. 3 had macrocephaly.; to: Monoallelic de novo variants reported in 8 individuals with nonspecific phenotype of intellectual disability and hypotonia; 3 had macrocephaly.
Mendeliome v0.4480 MAPK8 Arina Puzriakova gene: MAPK8 was added
gene: MAPK8 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MAPK8 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: MAPK8 were set to 31784499
Phenotypes for gene: MAPK8 were set to Chronic mucocutaneous candidiasis; Connective tissue disorders
Added comment: PMID: 31784499 (2020) - Three cases in a single family with chronic mucocutaneous candidiasis and a connective tissue disorder that clinically overlaps with hEDS. WES revealed a splice-site variant (c.311+1G>A) in the MAPK8 gene that segregated with the disorder. Includes supportive functional data using patient-derived fibroblasts, showing that the variant impairs IL-17A/F immunity and the development of Th17 cells.
Sources: Literature
Mendeliome v0.4475 TNNI2 Michelle Torres changed review comment from: Only a handful of variants reported, with a cluster of pathogenic missense in the C-terminal (between p.165 and 175). Missense, nonsense (not NMD) and an inframe-deletion have been shown to result in gain of function.; to: Only a handful of variants reported, with a cluster of pathogenic missense in the C-terminal (between p.165 and 175). Missense, nonsense (not NMD) and an inframe-deletion have been shown to result in gain of function (PMIDs: 17194691, 25340332).
Mendeliome v0.4473 TAF2 Zornitza Stark edited their review of gene: TAF2: Added comment: Evidence for gene-disease association is limited. Families reported as part of large cohorts with limited phenotypic data, and variants are homozygous missense without functional validation. Borderline Amber/Green.; Changed publications: 21937992, 22633631, 26350204, 24084144
Mendeliome v0.4463 NAXE Zornitza Stark changed review comment from: Early-onset progressive encephalopathy with brain edema and/or leukoencephalopathy-1 (PEBEL1) is an autosomal recessive severe neurometabolic disorder characterized by rapidly progressive neurologic deterioration that is usually associated with a febrile illness. Affected infants tend to show normal early development followed by acute psychomotor regression with ataxia, hypotonia, respiratory insufficiency, and seizures, resulting in coma and death in the first years of life. Brain imaging shows multiple abnormalities, including brain edema and signal abnormalities in the cortical and subcortical regions. More than 5 unrelated families reported.; to: Early-onset progressive encephalopathy with brain oedema and/or leukoencephalopathy-1 (PEBEL1) is an autosomal recessive severe neurometabolic disorder characterized by rapidly progressive neurologic deterioration that is usually associated with a febrile illness. Affected infants tend to show normal early development followed by acute psychomotor regression with ataxia, hypotonia, respiratory insufficiency, and seizures, resulting in coma and death in the first years of life. Brain imaging shows multiple abnormalities, including brain edema and signal abnormalities in the cortical and subcortical regions. More than 5 unrelated families reported.
Mendeliome v0.4452 KCNN4 Zornitza Stark gene: KCNN4 was added
gene: KCNN4 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: KCNN4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: KCNN4 were set to 26148990; 26198474; 26178367
Phenotypes for gene: KCNN4 were set to Dehydrated hereditary stomatocytosis 2, MIM# 616689
Review for gene: KCNN4 was set to GREEN
Added comment: At least three families reported.
Sources: Expert list
Mendeliome v0.4450 C15orf41 Zornitza Stark gene: C15orf41 was added
gene: C15orf41 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: C15orf41 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: C15orf41 were set to 23716552; 32293259; 31191338; 29885034
Phenotypes for gene: C15orf41 were set to Dyserythropoietic anemia, congenital, type Ib, MIM# 615631
Review for gene: C15orf41 was set to GREEN
Added comment: At least 6 families reported, functional data.
Sources: Expert list
Mendeliome v0.4428 SEC23B Zornitza Stark commented on gene: SEC23B: Over 20 families reported.
Mendeliome v0.4421 RPL9 Zornitza Stark gene: RPL9 was added
gene: RPL9 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: RPL9 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RPL9 were set to 29114930; 20116044
Phenotypes for gene: RPL9 were set to Diamond Blackfan anaemia
Review for gene: RPL9 was set to RED
Added comment: PMID: 29114930, de novo splice site variant, c.-2+1G>C, functional impact of this variant is likely deleterious but not proven. Inherited missense variant reported in PMID 20116044, p.Arg125Ser is present in 31 hets in gnomad.
Sources: Expert list
Mendeliome v0.4392 SLC25A46 Zornitza Stark changed review comment from: Age of onset is variable, but childhood onset described. Ataxia is a feature.; to: Hereditary motor and sensory neuropathy type VIB is an autosomal recessive complex progressive neurologic disorder characterized mainly by early-onset optic atrophy resulting in progressive visual loss and peripheral axonal sensorimotor neuropathy with highly variable age at onset and severity. Affected individuals also have cerebellar or pontocerebellar atrophy on brain imaging, and they show abnormal movements, such as ataxia, dysmetria, and myoclonus.

At least 10 unrelated families reported, supportive functional data.
Mendeliome v0.4389 MAPK8IP3 Zornitza Stark edited their review of gene: MAPK8IP3: Added comment: 18 unrelated individuals reported with de novo variants and a neurodevelopmental disorder characterised by global developmental delay, variably impaired intellectual development, and poor or absent speech. Additional features may include hypotonia, spasticity, or ataxia. About half have abnormal findings on brain imaging, including cerebral or cerebellar atrophy, loss of white matter volume, thin corpus callosum, and perisylvian polymicrogyria. Seizures are not a prominent finding, and nonspecific dysmorphic facial features are described.; Changed publications: 30612693, 30945334
Mendeliome v0.4386 LAMA1 Zornitza Stark Phenotypes for gene: LAMA1 were changed from to Cerebellar ataxia, intellectual disability, oculomotor apraxia, cerebellar cysts; Poretti Boltshauser syndrome MIM#615960
Mendeliome v0.4383 LAMA1 Zornitza Stark changed review comment from: Ataxia is part of the phenotype.
Sources: Expert list; to: Five unrelated families reported.
Sources: Expert list
Mendeliome v0.4368 ATP8A2 Zornitza Stark changed review comment from: Multiple individuals from unrelated families reported with bi-allelic variants in this gene and neurological phenotypes including intellectual disability.
Sources: Expert list; to: 10 individuals from six unrelated families reported with bi-allelic variants in this gene and neurological phenotypes including intellectual disability.
Sources: Expert list
Mendeliome v0.4355 SOS1 Zornitza Stark edited their review of gene: SOS1: Added comment: Over 50 individuals reported with SOS1 variants and a Noonan syndrome phenotype. Pulmonic stenosis tends to be more frequent compared to those with PTPN11 mutations, and atrial septal defect is relatively rare. Ectodermal features including keratosis pilaris and curly hair are significantly more prevalent compared with the general Noonan population. Height below the third percentile and learning disability are observed in fewer individuals compared with Noonan syndrome in general. In contrast, macrocephaly is overrepresented among those with SOS1 mutations.; Changed rating: GREEN; Changed mode of pathogenicity: Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments; Changed publications: 17143285, 17143282, 28884940, 17586837; Changed phenotypes: Noonan syndrome 4, MIM# 610733; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.4320 CACNA1E Zornitza Stark changed review comment from: At least 30 unrelated patients reported with heterozygous variants in this gene; primarily a seizure disorder, often with profound intellectual disability.; to: At least 30 unrelated patients reported with heterozygous variants in this gene; primarily a seizure disorder, often with profound intellectual disability. Additional common features included spastic quadriplegia, hyperreflexia, hyperkinetic movements, dystonia, myoclonus, clonus, poor or absent eye contact, nystagmus, cortical visual impairment, and loss of head control. Thirteen patients had congenital contractures and 13 had macrocephaly.
Mendeliome v0.4317 ATAD1 Zornitza Stark changed review comment from: Severe progressive neurological disorder, severe/profound intellectual disability is a feature; to: Hyperekplexia-4 is an autosomal recessive severe neurologic disorder apparent at birth. Three unrelated families reported. Affected infants have extreme hypertonia and appear stiff and rigid. They have little if any development, poor or absent visual contact, and no spontaneous movement, consistent with an encephalopathy. Some patients have early-onset refractory seizures. Severe progressive neurological disorder, severe/profound intellectual disability is a feature.
Mendeliome v0.4315 ADAT1 Zornitza Stark gene: ADAT1 was added
gene: ADAT1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: ADAT1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ADAT1 were set to 28180185; 29390050; 29659736
Phenotypes for gene: ADAT1 were set to Hyperekplexia 4, MIM#618011
Review for gene: ADAT1 was set to GREEN
Added comment: Hyperekplexia-4 is an autosomal recessive severe neurologic disorder apparent at birth. Three unrelated families reported. Affected infants have extreme hypertonia and appear stiff and rigid. They have little if any development, poor or absent visual contact, and no spontaneous movement, consistent with an encephalopathy. Some patients have early-onset refractory seizures.
Sources: Expert list
Mendeliome v0.4309 OCA2 Elena Savva changed review comment from: Single variant found causing AD OCA - p.G780S in two families (Lee, 2020) -> GOF suggested

Complete penetrance for oculocutaneous albininism but variable expressivity (PMID: 24518832). No variable expressivity or incomplete penetrance reported in GeneReviews.

Loss of function; to: Single variant found causing AD OCA - p.G780S in two families (Lee, 2020) -> GOF suggested

Complete penetrance for oculocutaneous albininism but variable expressivity (PMID: 24518832). No variable expressivity or incomplete penetrance reported in GeneReviews.

Loss of function

2.7kb deletion is very common in sub-Saharan African populations (GeneReviews)
Mendeliome v0.4309 ZSWIM6 Zornitza Stark changed review comment from: MIM #617865 (NEDMAGA): A recurrent de novo heterozygous truncating mutation in the ZSWIM6 gene (R913X)identified in 7 unrelated patients. Analysis of patient cells indicated that the mutant transcript escaped nonsense-mediated mRNA decay, and most likely produced a truncated protein, although antibody studies were unable to detect a truncated protein. Possible dominant-negative effect. NB a more proximal nonsense variant was also reported inherited in a family with an unaffected mother: loss of function variants may not cause a phenotype.
MIM#603671 (acromelic frontonasal dysplasia): recurrent missense identified in 6 unrelated families, p.Arg1163Trp; to: MIM #617865 (NEDMAGA): A recurrent de novo heterozygous truncating mutation in the ZSWIM6 gene (R913X) identified in 7 unrelated patients. Analysis of patient cells indicated that the mutant transcript escaped nonsense-mediated mRNA decay, and most likely produced a truncated protein, although antibody studies were unable to detect a truncated protein. Possible dominant-negative effect. NB a more proximal nonsense variant was also reported inherited in a family with an unaffected mother: loss of function variants may not cause a phenotype.
MIM#603671 (acromelic frontonasal dysplasia): recurrent missense identified in 6 unrelated families, p.Arg1163Trp
Mendeliome v0.4309 ZSWIM6 Zornitza Stark changed review comment from: MIM #617865 A recurrent de novo heterozygous truncating mutation in the ZSWIM6 gene (R913X)identified in 7 unrelated patients. Analysis of patient cells indicated that the mutant transcript escaped nonsense-mediated mRNA decay, and most likely produced a truncated protein, although antibody studies were unable to detect a truncated protein. Possible dominant-negative effect. NB a more proximal nonsense variant was also reported inherited in a family with an unaffected mother: loss of function variants may not cause a phenotype.
MIM#603671: recurrent missense identified in 6 unrelated families, p.Arg1163Trp; to: MIM #617865 (NEDMAGA): A recurrent de novo heterozygous truncating mutation in the ZSWIM6 gene (R913X)identified in 7 unrelated patients. Analysis of patient cells indicated that the mutant transcript escaped nonsense-mediated mRNA decay, and most likely produced a truncated protein, although antibody studies were unable to detect a truncated protein. Possible dominant-negative effect. NB a more proximal nonsense variant was also reported inherited in a family with an unaffected mother: loss of function variants may not cause a phenotype.
MIM#603671 (acromelic frontonasal dysplasia): recurrent missense identified in 6 unrelated families, p.Arg1163Trp
Mendeliome v0.4304 FARSA Zornitza Stark gene: FARSA was added
gene: FARSA was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: FARSA was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FARSA were set to 31355908
Phenotypes for gene: FARSA were set to Rajab interstitial lung disease with brain calcifications 2, MIM# 619013
Review for gene: FARSA was set to RED
Added comment: Autosomal recessive disorder characterized by growth delay, interstitial lung disease, liver disease, and abnormal brain MRI findings, including brain calcifications and periventricular cysts. Single affected individual reported, but FARSA interacts with FARSB, which causes a similar disorder.
Sources: Expert list
Mendeliome v0.4299 ANGPT2 Zornitza Stark gene: ANGPT2 was added
gene: ANGPT2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ANGPT2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ANGPT2 were set to https://stm.sciencemag.org/content/12/560/eaax8013
Phenotypes for gene: ANGPT2 were set to Primary lymphoedema
Review for gene: ANGPT2 was set to GREEN
Added comment: Five unrelated individuals reported with primary lymphedema and variants in this gene, together with functional data.
Sources: Literature
Mendeliome v0.4298 UBR4 Zornitza Stark changed review comment from: Episodic ataxia reported in two families, but another molecular diagnosis present in the second, so suggested as a modifier. Only one individual reported with childhood-onset progressive neurological disorder as part of a large paper proposing multiple candidate genes.; to: Episodic ataxia reported in four families, but another molecular diagnosis present in the some, so suggested as a modifier. Variants are missense, with no supportive segregation or functional data, some are present at a low level in population databases. Only one individual reported with childhood-onset progressive neurological disorder as part of a large paper proposing multiple candidate genes.
Mendeliome v0.4262 KMT2D Zornitza Stark edited their review of gene: KMT2D: Added comment: Four further individuals with KMT2D-associated neurodevelopmental syndrome reported. Features include: athelia (absent nipples), choanal atresia, hypoparathyroidism, delayed or absent pubertal development, and extreme short stature. Two of the four individuals had severe interstitial lung disease.; Changed publications: 31949313, 32083401
Mendeliome v0.4259 WASHC4 Zornitza Stark gene: WASHC4 was added
gene: WASHC4 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: WASHC4 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: WASHC4 were set to 31953988; 21498477
Phenotypes for gene: WASHC4 were set to Mental retardation, autosomal recessive 43, MIM #615817
Review for gene: WASHC4 was set to GREEN
Added comment: Three unrelated families reported.
Sources: Literature
Mendeliome v0.4256 CFAP58 Crystle Lee edited their review of gene: CFAP58: Added comment: Biallelic variants reported in 5 unrelated males with nultiple morphological abnormalities of the sperm flagella (MMAF). Knockout mice were infertile.; Changed rating: GREEN; Changed publications: 32791035; Changed phenotypes: Multiple morphological abnormalities of the sperm flagella (MMAF) (PMID: 32791035); Changed mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.4250 CFAP58 Crystle Lee gene: CFAP58 was added
gene: CFAP58 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: CFAP58 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CFAP58 were set to 32791035
Phenotypes for gene: CFAP58 were set to Multiple morphological abnormalities of the sperm flagella (MMAF) (PMID: 32791035)
Review for gene: CFAP58 was set to AMBER
Added comment: 5 unrelated males reported with biallelic loss of function variants. Knockout mice were infertile (Abstract only)
Sources: Expert Review
Mendeliome v0.4249 MYT1L Zornitza Stark edited their review of gene: MYT1L: Added comment: Over 50 individuals reported with deletions and SNVs affecting MYT1L, and variable phenotype comprising intellectual disability, obesity, and behavioral problems.; Changed publications: 28859103, 32065501
Mendeliome v0.4242 MYSM1 Zornitza Stark changed review comment from: early-onset anaemia, leukopaenia, and decreased B cells, may have thrombocytopaenia or variable additional non-haematologic features, such as facial dysmorphism, skeletal anomalies, and mild developmental delay
Sources: Expert list; to: Early-onset anaemia, leukopaenia, and decreased B cells, may have thrombocytopaenia or variable additional non-haematologic features, such as facial dysmorphism, skeletal anomalies, and mild developmental delay. At least 4 unrelated families reported.
Sources: Expert list
Mendeliome v0.4230 MCM10 Zornitza Stark gene: MCM10 was added
gene: MCM10 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MCM10 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MCM10 were set to 32865517
Phenotypes for gene: MCM10 were set to Susceptibility to CMV
Review for gene: MCM10 was set to RED
Added comment: Compound heterozygous variants in minichromosomal maintenance complex member 10 (MCM10) reported as a cause of NK-cell deficiency in a child with fatal susceptibility to CMV.
Sources: Literature
Mendeliome v0.4229 TET2 Zornitza Stark changed review comment from: Somatic TET2 variants are commonly found in cancers. One Finnish family reported where germline variant present 7 individuals, of whom 3 had lymphoma. Another French family reported with three sibs: frameshift variant and myeloid malignancies. Contribution of germline variants to malignancy risk to be established.; to: Mono-allelic variants: Somatic TET2 variants are commonly found in cancers. One Finnish family reported where germline variant present 7 individuals, of whom 3 had lymphoma. Another French family reported with three sibs: frameshift variant and myeloid malignancies. Contribution of germline variants to malignancy risk to be established.
Mendeliome v0.4229 TET2 Zornitza Stark changed review comment from: No evidence for Mendelian gene-disease association. Somatic TET2 variants are commonly found in cancers. One Finnish family reported where germline variant present 7 individuals, of whom 3 had lymphoma. Another French family reported with three sibs: frameshift variant and myeloid malignancies. Contribution of germline variants to malignancy risk to be established.; to: Somatic TET2 variants are commonly found in cancers. One Finnish family reported where germline variant present 7 individuals, of whom 3 had lymphoma. Another French family reported with three sibs: frameshift variant and myeloid malignancies. Contribution of germline variants to malignancy risk to be established.
Mendeliome v0.4226 FDXR Zornitza Stark edited their review of gene: FDXR: Added comment: Four families reported with bi-allelic variants in FDXR causing an autosomal recessive neurologic disorder characterised by onset of visual and hearing impairment in the first or second decades. Two individuals described with a more severe progressive neurological phenotype. Mouse model exhibits neurodegeneration.; Changed rating: GREEN; Changed publications: 30250212, 28965846
Mendeliome v0.4205 DHX34 Zornitza Stark gene: DHX34 was added
gene: DHX34 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DHX34 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: DHX34 were set to 31256877
Phenotypes for gene: DHX34 were set to Intellectual disability; congenital anomalies
Review for gene: DHX34 was set to RED
Added comment: Three families reported. Two with bi-allelic variants and ID/multiple congenital anomalies but another molecular diagnosis present in both (variants in established genes). Single de novo missense in another individual with ID and dysmorphism. No supporting functional data. Overall RED rating for both MOI.
Sources: Literature
Mendeliome v0.4204 DDX54 Zornitza Stark gene: DDX54 was added
gene: DDX54 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DDX54 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: DDX54 were set to 31256877
Phenotypes for gene: DDX54 were set to Intellectual disability; congenital anomalies
Review for gene: DDX54 was set to RED
Added comment: Three individuals reported with different MOIs and different phenotypes. One with de novo variant and ID, another with bi-allelic variants and ID, and a third with bi-allelic variants and CAKUT. All variants are missense, no functional data. Overall, Red rating given inconsistent phenotypes and modes of inheritance, each one is essentially treated separately for now until further cases identified.
Sources: Literature
Mendeliome v0.4202 DHX16 Zornitza Stark gene: DHX16 was added
gene: DHX16 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DHX16 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: DHX16 were set to 31256877
Phenotypes for gene: DHX16 were set to Neuromuscular disease and ocular or auditory anomalies with or without seizures, MIM# 618733
Review for gene: DHX16 was set to GREEN
Added comment: Four unrelated individuals reported with de novo missense variants in this gene. Three of the individuals died in infancy, so phenotypic spectrum difficult to discern. Two had seizures. Individual with long-term survival had a progressive course, evidence of myopathy, loss of hearing and vision, and normal IQ.
Sources: Literature
Mendeliome v0.4198 DHX37 Zornitza Stark changed review comment from: Seventeen individuals with 46,XY gonadal dysgenesis reported in two studies.
Sources: Literature; to: Mono-allelic disease: Seventeen individuals with 46,XY gonadal dysgenesis reported in two studies.
Sources: Literature
Mendeliome v0.4134 TRAPPC2L Arina Puzriakova changed review comment from: Gene is associated with Encephalopathy, progressive, early-onset, with episodic rhabdomyolysis in OMIM, but not in G2P.

PMID: 30120216 (2018) - Two unrelated probands with an identical homozygous missense (c.109G>T, p.Asp37Tyr) variant in TRAPPC2L. Both individuals presented neurodevelopmental delay, febrile illness-induced encephalopathy, and episodic rhabdomyolysis, followed by developmental arrest, seizures and tetraplegia. The variant segregated with the phenotype in each family, and haplotype analysis suggested a founder effect.

The mutant protein was expressed in patient fibroblasts, but displayed membrane trafficking delays. Studies in yeast showed that the variant impaired interaction with TRAPPC10, and increased levels of the active RAB11.


PMID: 32843486 (2020) - In an Ashkenazi Jewish family with three affected sibs with GDD/ID, WGS revealed a segregating homozygous missense variant (c.5G>C, p.Ala2Gly) in the TRAPPC2L gene. No seizures, brain MRI abnormalities, or illness provoked regression were documented in this family.

Comparable to the previous study, the variant resulted in delayed ER-to-Golgi trafficking and elevated levels of active RAB11. Studies using yeast and in vitro binding, showed that the variant disrupted interaction with another core TRAPP protein, TRAPPC6a.
Sources: Literature; to: Total of three families, but two share a founder variant, and there are some disparities between the clinical presentations reported in the two publications. Rating Amber as additional cases required to delineate the genotype-phenotype relationship.

PMID: 30120216 (2018) - Two unrelated probands with an identical homozygous missense (c.109G>T, p.Asp37Tyr) variant in TRAPPC2L. Both individuals presented neurodevelopmental delay, febrile illness-induced encephalopathy, and episodic rhabdomyolysis, followed by developmental arrest, seizures and tetraplegia. The variant segregated with the phenotype in each family, and haplotype analysis suggested a founder effect.

The mutant protein was expressed in patient fibroblasts, but displayed membrane trafficking delays. Studies in yeast showed that the variant impaired interaction with TRAPPC10, and increased levels of the active RAB11.


PMID: 32843486 (2020) - In an Ashkenazi Jewish family with three affected sibs with GDD/ID, WGS revealed a segregating homozygous missense variant (c.5G>C, p.Ala2Gly) in the TRAPPC2L gene. No seizures, brain MRI abnormalities, or illness provoked regression were documented in this family.

Comparable to the previous study, the variant resulted in delayed ER-to-Golgi trafficking and elevated levels of active RAB11. Studies using yeast and in vitro binding, showed that the variant disrupted interaction with another core TRAPP protein, TRAPPC6a.

Sources: Literature
Mendeliome v0.4125 CRIPT Ain Roesley gene: CRIPT was added
gene: CRIPT was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CRIPT was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CRIPT were set to 24389050; 27250922
Phenotypes for gene: CRIPT were set to Short stature with microcephaly and distinctive facies (MIM#615789)
Penetrance for gene: CRIPT were set to unknown
Review for gene: CRIPT was set to AMBER
Added comment: PMID: 24389050
- 2 unrelated probands homozygous for PTVs. However 1 was deceased and DNA was unavailable therefore parents were sequenced

PMID: 27250922
- 1x proband
- het for a missense which was maternally inherited. Because the father was negative for SNVs, they did CMA and found a small heterozygous deletion 1.6kb in size encompassing exon 1 of CRIPT. This deletion was paternally inherited

*did not find new reports since
Sources: Literature
Mendeliome v0.4121 UFC1 Paul De Fazio gene: UFC1 was added
gene: UFC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: UFC1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: UFC1 were set to 29868776; 30552426
Phenotypes for gene: UFC1 were set to Neurodevelopmental disorder with spasticity and poor growth (MIM#618076)
Review for gene: UFC1 was set to GREEN
gene: UFC1 was marked as current diagnostic
Added comment: PMID 29868776: 8 affected individuals from 4 families reported. 7 were described to be postnatally microcephalic (at or below 3rd percentile). One was -5.1SD and one was -3.6SD. SD values for the others weren't provided.

The following head circumference measurements were provided for 6 of the affecteds:

51cm at 16yo; 50cm at 19yo; 42.5cm at 12mo, 45cm at 28mo, 45.2cm at 7yo; 45cm at 4yo.

3 of the families were consanguineous Saudi families with the same homozygous missense variant.

In vitro functional expression studies showed that both mutations caused impaired thioester binding with UFM1. Patient cells also showed decreased UFC1 intermediate formation with UFM1. The decrease in function was consistent with a hypomorphic allele, and the authors suggested that complete loss of function would be embryonic lethal.

PMID 30552426: 1 more individual with epileptic encephalopathy reported with a different homozygous missense variant in UFC1. The patient had microcephaly <3rd percentile.
Sources: Literature
Mendeliome v0.4113 GMNN Zornitza Stark changed review comment from: Three unrelated individuals reported.; to: Three unrelated individuals reported, all variants in exon 2 (first coding exon).
Mendeliome v0.4109 RIPOR2 Zornitza Stark Phenotypes for gene: RIPOR2 were changed from Deafness, autosomal recessive 104, MIM# 616515 to Deafness, autosomal recessive 104, MIM# 616515; Deafness, autosomal dominant
Mendeliome v0.4108 RIPOR2 Zornitza Stark Marked gene: RIPOR2 as ready
Mendeliome v0.4108 RIPOR2 Zornitza Stark Gene: ripor2 has been classified as Amber List (Moderate Evidence).
Mendeliome v0.4108 RIPOR2 Zornitza Stark Publications for gene: RIPOR2 were set to 24958875
Mendeliome v0.4107 RIPOR2 Zornitza Stark Mode of inheritance for gene: RIPOR2 was changed from BIALLELIC, autosomal or pseudoautosomal to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.4106 RIPOR2 Zornitza Stark Tag founder tag was added to gene: RIPOR2.
Mendeliome v0.4097 CHCHD10 Zornitza Stark Phenotypes for gene: CHCHD10 were changed from to Frontotemporal dementia and/or amyotrophic lateral sclerosis 2 615911; Spinal muscular atrophy, Jokela type 615048; Myopathy, isolated mitochondrial, autosomal dominant 616209
Mendeliome v0.4093 CHCHD10 Zornitza Stark reviewed gene: CHCHD10: Rating: GREEN; Mode of pathogenicity: Other; Publications: 24934289, 25428574, 25193783, 32042922, 31690696, 30877432, 30874923; Phenotypes: Frontotemporal dementia and/or amyotrophic lateral sclerosis 2 615911, Spinal muscular atrophy, Jokela type 615048, Myopathy, isolated mitochondrial, autosomal dominant 616209; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.4091 CTNND1 Eleanor Williams changed review comment from: PMID: 32196547 - Alharatani et al 2020 - report an expanded phenotype for CTNND1 patients. They report 13 individuals from nine families with novel protein-truncating variants in CTNND1 identified by WES. The mutations were not previously described in blepharocheilodontic (BCD), orofacial cleft cases nor in gnomAD. 8 patients had de novo variants, 2 inherited from affected parents, 2 participants inherited a variant from a parent with a mild phenotype. Additional phenotypic features seen include mild limb phenotypes (9/13), cardiovascular anomalies (6/13) and Developmental delay and other neurodevelopmental problems (8/13).; to: PMID: 32196547 - Alharatani et al 2020 - report an expanded phenotype for CTNND1 patients. They report 13 individuals from nine families with novel protein-truncating variants in CTNND1 identified by WES. The mutations were not previously described in blepharocheilodontic (BCD), orofacial cleft cases nor in gnomAD. 8 patients had de novo variants, 2 inherited from affected parents, 2 participants inherited a variant from a parent with a mild phenotype. 8/13 patients showed cleft palate Additional phenotypic features seen include mild limb phenotypes (9/13), cardiovascular anomalies (6/13) and Developmental delay and other neurodevelopmental problems (8/13).
Mendeliome v0.4091 RIPOR2 Arina Puzriakova reviewed gene: RIPOR2: Rating: AMBER; Mode of pathogenicity: None; Publications: 32631815; Phenotypes: Sensorineural hearing loss; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, paternally imprinted (maternal allele expressed)
Mendeliome v0.4091 ZFYVE19 Arina Puzriakova gene: ZFYVE19 was added
gene: ZFYVE19 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ZFYVE19 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ZFYVE19 were set to 32737136
Phenotypes for gene: ZFYVE19 were set to Cholestasis
Review for gene: ZFYVE19 was set to GREEN
Added comment: PMID: 32737136 (2020) - Nine Han Chinese children from seven families with biallelic, predicted complete LoF variants in ZFYVE19. All patients had high-GGT intrahepatic cholestasis, portal hypertension, and histopathological features of the ductal plate malformation/congenital hepatic fibrosis.

ZFYVE19 depletion in cultured cells from one patient yielded centriolar and axonemal abnormalities, and immunostaining for two ciliary proteins DCDC2 and ACALT showed abnormal localisation in patient cholangiocytes, indicating this as a novel ciliopathy disorder.
Sources: Literature
Mendeliome v0.4088 SRD5A3 Zornitza Stark edited their review of gene: SRD5A3: Added comment: Over 25 families reported, well established gene-disease association for CDG. Allelic disorder Kahrizi syndrome has overlapping features, may not be distinct entity.; Changed publications: 32424323; Changed phenotypes: Congenital disorder of glycosylation, type Iq, MIM#612379, Kahrizi syndrome, MIM# 612713
Mendeliome v0.4058 YRDC Zornitza Stark gene: YRDC was added
gene: YRDC was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: YRDC was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: YRDC were set to 31481669
Phenotypes for gene: YRDC were set to Galloway-Mowat syndrome
Review for gene: YRDC was set to GREEN
Added comment: Three individuals from two unrelated families with typical features of Galloway-Mowat syndrome including proteinuria, microcephaly, developmental delay and brain malformations. Supportive functional data.
Sources: Literature
Mendeliome v0.4056 GON7 Zornitza Stark gene: GON7 was added
gene: GON7 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GON7 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GON7 were set to 31481669
Phenotypes for gene: GON7 were set to Galloway-Mowat syndrome
Review for gene: GON7 was set to GREEN
Added comment: 11 individuals from 5 families. Four of the families had the same homozygous variant, shared haplotype suggestive of founder effect. Clinical features included proteinuria, microcephaly, brain malformations and developmental delay. Supportive functional data.
Sources: Literature
Mendeliome v0.4039 NSD2 Zornitza Stark changed review comment from: Microcephaly reported in 6 of 7 individuals with LOF variants in this gene.; to: 7 individuals with LOF variants in this gene, gene thought to be responsible for key features of Wolf-Hirschorn syndrome.
Mendeliome v0.4025 TSEN2 Zornitza Stark edited their review of gene: TSEN2: Added comment: At least 3 unrelated families reported.; Changed rating: GREEN; Changed publications: 23562994, 20952379; Changed phenotypes: Pontocerebellar hypoplasia type 2B, MIM# 612389
Mendeliome v0.4002 AASS Zornitza Stark changed review comment from: Hyperlysinemia type I is an autosomal recessive metabolic condition with variable clinical features. Some patients who present in infancy with nonspecific seizures, hypotonia, or mildly delayed psychomotor development have been found to have increased serum lysine and pipecolic acid on laboratory analysis. However, about 50% of probands are reported to be asymptomatic. Given the broad range of clinical features and the presence of consanguinity in several families, there was not strong evidence for causality of symptoms. Hyperlysinemia is generally considered to be a benign metabolic variant rather than a disease entity.; to: Hyperlysinemia type I is an autosomal recessive metabolic condition with variable clinical features. Some patients who present in infancy with nonspecific seizures, hypotonia, or mildly delayed psychomotor development have been found to have increased serum lysine and pipecolic acid on laboratory analysis. However, about 50% of probands are reported to be asymptomatic. Given the broad range of clinical features and the presence of consanguinity in several families, there was not strong evidence for causality of symptoms. It has been suggested that hyperlysinemia is a benign metabolic variant rather than a disease entity.
Mendeliome v0.3961 NDUFA13 Zornitza Stark edited their review of gene: NDUFA13: Added comment: Second family reported with some supportive functional data.; Changed rating: AMBER; Changed publications: 25901006, 32722639
Mendeliome v0.3942 NPRL2 Zornitza Stark Phenotypes for gene: NPRL2 were changed from to Epilepsy, familial focal, with variable foci 2, MIM# 617116; focal seizures; frontal lobe epilepsy; nocturnal frontal lobe epilepsy; temporal lobe epilepsy; focal cortical dysplasia
Mendeliome v0.3939 NPRL2 Dean Phelan reviewed gene: NPRL2: Rating: GREEN; Mode of pathogenicity: None; Publications: PMID: 26505888, 27173016, 28199897, 31594065; Phenotypes: focal seizures, frontal lobe epilepsy, nocturnal frontal lobe epilepsy, temporal lobe epilepsy, focal cortical dysplasia; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.3938 PDE2A Zornitza Stark gene: PDE2A was added
gene: PDE2A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PDE2A was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PDE2A were set to 32467598; 32196122; 29392776
Phenotypes for gene: PDE2A were set to Paroxysmal dyskinesia
Review for gene: PDE2A was set to GREEN
Added comment: Four unrelated families reported with childhood-onset refractory paroxysmal dyskinesia with cognitive impairment, sometimes associated with choreodystonia and interictal baseline EEG abnormalities or epilepsy. One of the reports characterises the disorder as 'Rett-like'.
Sources: Literature
Mendeliome v0.3921 GABRA6 Zornitza Stark gene: GABRA6 was added
gene: GABRA6 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GABRA6 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: GABRA6 were set to 21930603; 29215089; 19429026
Phenotypes for gene: GABRA6 were set to Benign familial inherited epilepsy; Childhood absence epilepsy
Review for gene: GABRA6 was set to RED
Added comment: One report in a cohort of patients with BFIE. Potential susceptibility allele in CAE.
Sources: Literature
Mendeliome v0.3892 FOLR1 Zornitza Stark Phenotypes for gene: FOLR1 were changed from to Neurodegeneration due to cerebral folate transport deficiency, MIM# 613068
Mendeliome v0.3889 FOLR1 Zornitza Stark reviewed gene: FOLR1: Rating: GREEN; Mode of pathogenicity: None; Publications: 19732866, 30420205, 27743887; Phenotypes: Neurodegeneration due to cerebral folate transport deficiency, MIM# 613068; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.3874 ABAT Zornitza Stark edited their review of gene: ABAT: Added comment: Bi-allelic variants in ABAT are associated with a neurotransmitter disorder. However, there are also reports of families with encephalomyopathic MDS caused by bi-allelic variants in ABAT resulting in elevated GABA in subjects' brains as well as decreased mtDNA levels in subjects' fibroblasts. Nucleoside rescue and co-IP experiments demonstrate that ABAT functions in the mitochondrial nucleoside salvage pathway to facilitate conversion of dNDPs to dNTPs. Unclear whether this a distinct disorder or part of a continuum caused by the enzyme being part of two pathways.; Changed publications: 25738457, 27903293, 28411234, 27596361, 20052547, 10407778, 6148708; Changed phenotypes: GABA-transaminase deficiency, MIM# 613163, mtDNA depletion syndrome (MDS)
Mendeliome v0.3872 LMBRD2 Zornitza Stark gene: LMBRD2 was added
gene: LMBRD2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: LMBRD2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: LMBRD2 were set to 32820033; https://doi.org/10.1101/797787
Phenotypes for gene: LMBRD2 were set to Global developmental delay; Intellectual disability; Microcephaly; Seizures; Abnormality of nervous system morphology; Abnormality of the eye
Mode of pathogenicity for gene: LMBRD2 was set to Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments
Review for gene: LMBRD2 was set to GREEN
Added comment: 13 individuals with dn missense SNVs overall, overlapping features for 10 with available phenotype / a recurring variant has been identified in 2 different studies.

► Malhotra et al (2020 - PMID: 32820033) report on 10 unrelated individuals with de novo missense LMBRD2 variants. Features included DD (9/10), ID (6/8 of relevant age), microcephaly (7/10), seizures (5/10 - >=3 different variants), structural brain abnormalities (e.g. thin CC in 6/9), highly variable ocular abnormalities (5/10) and dysmorphic features in some (7/10 - nonspecific). All had variable prior non-diagnostic genetic tests (CMA, gene panel, mendeliome, karyotype). WES/WGS revealed LMBRD2 missense variants, in all cases de novo. A single individual had additional variants with weaker evidence of pathogenicity. 5 unique missense SNVs and 2 recurrent ones (NM_001007527:c.367T>C - p.Trp123Arg / c.1448G>A - p.Arg483His) were identified. These occurred in different exons. Variants were not present in gnomAD and all had several in silico predictions in favor of a deleterious effect. There was phenotypic variability among individuals with the same variant (e.g. seizures in 1/3 and microchephaly in 2/3 of those harboring R483H). The gene has a pLI of 0 (although o/e ranges from 0.23 to 0.55), %HI of 15.13 and z-score of 2.27. The authors presume that haploinsufficiency may not apply, and consider a gain-of-function/dominant-negative effect more likely. As the authors comment LMBRD2 (LMBR1 domain containing 2) encodes a membrane bound protein with poorly described function. It is widely expressed across tissues with notable expression in human brain (also in Drosophila, or Xenopus laevis). It displays high interspecies conservation. It has been suggested (Paek et al - PMID: 28388415) that LMBRD2 is a potential regulator of β2 adrenoreceptor signalling through involvement in GPCR signalling.

► Kaplanis et al (2020 - https://doi.org/10.1101/797787) in a dataset of 31058 parent-offspring trios (WES) previously identified 3 individuals with developmental disorder, harboring c.1448G>A - p.Arg483His. These individuals (1 from the DDD study, and 2 GeneDx patients) appear in Decipher. [ https://decipher.sanger.ac.uk/ddd/research-variant/40e17c78cc9655a6721006fc1e0c98db/overview ]. The preprint by Kaplanis et al is cited by Malhotra et al, with Arg483His reported in 6 patients overall in both studies.
Sources: Literature
Mendeliome v0.3862 MYOD1 Zornitza Stark gene: MYOD1 was added
gene: MYOD1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MYOD1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MYOD1 were set to 26733463; 30403323; 31260566
Phenotypes for gene: MYOD1 were set to Myopathy, congenital, with diaphragmatic defects, respiratory insufficiency, and dysmorphic facies, MIM# 618975
Review for gene: MYOD1 was set to GREEN
Added comment: Three unrelated families reported.
Sources: Expert list
Mendeliome v0.3846 HNRNPA2B1 Zornitza Stark gene: HNRNPA2B1 was added
gene: HNRNPA2B1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: HNRNPA2B1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: HNRNPA2B1 were set to 23455423; 30279180; 29358076; 26744327; 23635965
Phenotypes for gene: HNRNPA2B1 were set to Inclusion body myopathy with early-onset Paget disease with or without frontotemporal dementia 2 MIM#615422
Review for gene: HNRNPA2B1 was set to AMBER
Added comment: One family reported that segregates cognitive impairment as part of the phenotype, and extensive functional analysis of protein, including a drosophila model.
Sources: Literature
Mendeliome v0.3844 PSMC3 Zornitza Stark gene: PSMC3 was added
gene: PSMC3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PSMC3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PSMC3 were set to 32500975
Phenotypes for gene: PSMC3 were set to Deafness; cataract
Review for gene: PSMC3 was set to AMBER
Added comment: Three affected individuals from a single consanguineous family reported with homozygous intronic variant. Animal model.
Sources: Literature
Mendeliome v0.3834 TAF1C Zornitza Stark gene: TAF1C was added
gene: TAF1C was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: TAF1C was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TAF1C were set to 32779182
Phenotypes for gene: TAF1C were set to Global developmental delay; Intellectual disability; Spasticity; Strabismus; Seizures; Abnormality of nervous system morphology
Review for gene: TAF1C was set to AMBER
Added comment: Knuutinen et al (2020 - PMID: 32779182) report on 2 individuals from 2 consanguineous families, homozygous for TAF1C missense variants. Both presented with an early onset neurological phenotype with severe global DD, ID (2/2 - moderate and profound), spasticity (2/2), ophthalmic findings (strabismus 2/2, nystagmus 1/2). Epilepsy, abnormal brain MRI (cerebral and cerebellar atrophy and white matter hyperintensities) as well and additional findings were reported in one (always the same individual). Following a normal CMA, exome in the first case revealed a homozygous missense SNV (NM_005679.3:c.1165C>T / p.Arg389Cys) supported by in silico predictions. mRNA and protein levels were substantially reduced in fibroblasts from this subject. Only the patient and parents were tested for the variant but not 3 unaffected sibs (fig1). The second individual was homozygous for another missense variant (p.Arg405Cys) also supported by in silico predictions. The girl was the single affected person within the family with an unaffected sib and parents heterozygous for the variant. Several other unaffected relatives in the extended pedigree were either carriers for this variant or homozygous for the wt allele. TAF1C encodes the TATA-box binding protein associated factor (TAF) RNA polymerase I subunit. RNA polymerase I (Pol I) transcribes genes to produce rRNA. For Pol I to initiate transcription, two transcription factors are required : UBF (upstream binding factor encoded by UBTF) and SL1 (selectivity factor 1). The latter is formed by TBP (TATA-binding protein) and 3 Pol I-specific TBP-associated factors (TAFs). A recurrent de novo missense variant in UBTF (encoding the other Pol I transcription factor) causes a disorder with highly similar features. The specific variant acts through a gain-of-function mechanism (and not by LoF which appears to apply for TAF1C based on expression data). The authors hypothesize that altered Pol I activity and resulting ribosomal stress could cause the microcephaly and leukodystrophy (both reported in 1 - the same - individual).
Sources: Expert list
Mendeliome v0.3811 SLURP1 Zornitza Stark changed review comment from: Over 10 families reported with Mal de Meleda, a rare autosomal recessive skin disorder characterized by transgressive palmoplantar keratoderma, keratotic skin lesions, perioral erythema, brachydactyly, and nail abnormalities.; to: Over 10 families reported with Mal de Meleda, a rare autosomal recessive skin disorder characterized by transgressive palmoplantar keratoderma, keratotic skin lesions, perioral erythema, brachydactyly, and nail abnormalities. Note single report of manifesting carriers.
Mendeliome v0.3805 TPM4 Zornitza Stark gene: TPM4 was added
gene: TPM4 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: TPM4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: TPM4 were set to 28134622; 31249973; 21153663
Phenotypes for gene: TPM4 were set to Macrothrombocytopaenia
Review for gene: TPM4 was set to GREEN
Added comment: Three families reported in addition to genome-wide association studies in nearly 70,000 individuals which indicate that SNVs in TPM4 exert an effect on the count and volume of platelets.
Sources: Expert list
Mendeliome v0.3799 THBD Zornitza Stark edited their review of gene: THBD: Added comment: Variants in this gene have also been linked to thrombophilia. Two families reported with a bleeding disorder, both variants located in the transmembrane domain.; Changed publications: 29500241, 19625716, 25564403, 32634856; Changed phenotypes: {Hemolytic uremic syndrome, atypical, susceptibility to, 6}, MIM# 612926, Bleeding disorder
Mendeliome v0.3794 SLFN14 Zornitza Stark gene: SLFN14 was added
gene: SLFN14 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: SLFN14 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SLFN14 were set to 26280575; 26769223
Phenotypes for gene: SLFN14 were set to Bleeding disorder, platelet-type, 20, MIM# 616913
Review for gene: SLFN14 was set to GREEN
Added comment: At least four unrelated families reported.
Sources: Expert list
Mendeliome v0.3792 PTPRJ Zornitza Stark gene: PTPRJ was added
gene: PTPRJ was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PTPRJ was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PTPRJ were set to 30591527
Phenotypes for gene: PTPRJ were set to Thrombocytopaenia
Review for gene: PTPRJ was set to AMBER
Added comment: Two siblings reported with nonsyndromic thrombocytopenia characterised by spontaneous bleeding, small-sized platelets, and impaired platelet responses to the GPVI agonists collagen and convulxin. Supportive zebrafish model.
Sources: Expert list
Mendeliome v0.3790 PTGS1 Zornitza Stark gene: PTGS1 was added
gene: PTGS1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PTGS1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PTGS1 were set to 32299908; 11442478; 27629384; 8562397
Phenotypes for gene: PTGS1 were set to Platelet dysfunction; bleeding
Review for gene: PTGS1 was set to AMBER
Added comment: Single molecularly characterised family reported. However, note at least two previous older reports where deficiency was identified at protein rather than gene level.
Sources: Expert list
Mendeliome v0.3789 PRKACG Zornitza Stark gene: PRKACG was added
gene: PRKACG was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PRKACG was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PRKACG were set to 25061177; 30819905
Phenotypes for gene: PRKACG were set to Bleeding disorder, platelet-type, 19, MIM# 616176
Review for gene: PRKACG was set to RED
Added comment: Single family reported only. A heterozygous VOUS reported in another individual in PMID 30819905 together with several other VOUS in same individual.
Sources: Expert list
Mendeliome v0.3787 PLAU Zornitza Stark gene: PLAU was added
gene: PLAU was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PLAU was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PLAU were set to 20007542
Phenotypes for gene: PLAU were set to Quebec platelet disorder, MIM# 601709
Review for gene: PLAU was set to GREEN
Added comment: Note this is a tandem 78kb duplication of the gene, multiple families reported.
Sources: Expert list
Mendeliome v0.3785 PLA2G4A Zornitza Stark gene: PLA2G4A was added
gene: PLA2G4A was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PLA2G4A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PLA2G4A were set to 18451993; 25102815; 23268370
Phenotypes for gene: PLA2G4A were set to Gastrointestinal ulceration, recurrent, with dysfunctional platelets, MIM# 618372
Review for gene: PLA2G4A was set to GREEN
Added comment: At least three unrelated individuals reported.
Sources: Expert list
Mendeliome v0.3783 MPIG6B Zornitza Stark gene: MPIG6B was added
gene: MPIG6B was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MPIG6B was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MPIG6B were set to 31276734; 29898956; 27743390
Phenotypes for gene: MPIG6B were set to Thrombocytopenia, anemia, and myelofibrosis, MIM# 617441
Review for gene: MPIG6B was set to GREEN
Added comment: Six families reported.
Sources: Expert list
Mendeliome v0.3732 FAM50A Zornitza Stark gene: FAM50A was added
gene: FAM50A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FAM50A was set to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Publications for gene: FAM50A were set to 32703943
Phenotypes for gene: FAM50A were set to Mental retardation syndrome, X-linked, Armfield type (MIM #300261)
Review for gene: FAM50A was set to GREEN
Added comment: Lee et al (2020 - PMID: 32703943) provide evidence that Armfield X-Linked intellectual disability syndrome is caused by monoallelic FAM50A pathogenic variants. The current review is based only on this reference. The authors provide clinical details on 6 affected individuals from 5 families. Features included postnatal growth delay, DD and ID (6/6 - also evident for those without formal IQ assesment), seizures (3/6 from 2 families), prominent forehead with presence of other facial features and variable head circumference (5th to >97th %le), ocular anomalies (5/6 - strabismus/nystagmus/Axenfeld-Rieger), cardiac (3/6 - ASD/Fallot) and genitourinary anomalies (3/6). In the first of these families (Armfield et al 1999 - PMID: 10398235), linkage analysis followed by additional studies (Sanger, NGS of 718 genes on chrX, X-exome NGS - several refs provided) allowed the identification of a FAM50A variant. Variants in other families were identified by singleton (1 fam) or trio-ES (3 fam). In affected individuals from 3 families, the variant had occurred de novo. Carrier females in the other families were unaffected (based on pedigrees and/or the original publication). XCI was rather biased in most obligate carrier females from the 1st family (although this ranged from 95:5 to 60:40). Missense variants were reported in all affected subjects incl. Trp206Gly, Asp255Gly, Asp255Asn (dn), Glu254Gly (dn), Arg273Trp (dn) (NM_004699.3). Previous studies have demonstrated that FAM50A has ubiquitous expression in human fetal and adult tissues (incl. brain in fetal ones). Immunostaining suggests a nuclear localization for the protein (NIH/3T3 cells). Comparison of protein levels in LCLs from affected males and controls did not demonstrate significant differences. Protein localization for 3 variants (transfection of COS-7 cells) was shown to be similar to wt. Complementation studies in zebrafish provided evidence that the identified variants confer partial loss of function (rescue of the morpholino phenotype with co-injection of wt but not mt mRNA). The zebrafish ko model seemed to recapitulate the abnormal development of cephalic structures and was indicative of diminished/defective neurogenesis. Transcriptional dysregulation was demonstrated in zebrafish (altered levels and mis-splicing). Upregulation of spliceosome effectors was demonstrated in ko zebrafish. Similarly, mRNA expression and splicing defects were demonstrated in LCLs from affected individuals. FAM50A pulldown followed by mass spectrometry in transfected HEK293T cells demonstrated enrichment of binding proteins involved in RNA processing and co-immunoprecipitation assays (transfected U-87 cells) suggested that FAM50A interacts with spliceosome U5 and C-complex proteins. Overall aberrant spliceosome C-complex function is suggested as the underlying pathogenetic mechanism. Several other neurodevelopmental syndromes are caused by variants in genes encoding C-complex affiliated proteins (incl. EFTUD2, EIF4A3, THOC2, etc.).
Sources: Literature
Mendeliome v0.3718 MPDZ Zornitza Stark changed review comment from: Five Saudi families reported with same homozygous variant, p.Gln210Ter, founder effect. Additional 4 families report from different ethnic backgrounds and at least 4 different variants. Mouse model.; to: Five Saudi families reported with same homozygous variant, p.Gln210Ter, founder effect. Additional 4 families reported from different ethnic backgrounds and at least 4 different variants. Mouse model.
Mendeliome v0.3714 B3GNT2 Zornitza Stark edited their review of gene: B3GNT2: Added comment: Gene previously known as B3GNT1. Two families reported.; Changed rating: AMBER; Changed publications: 23359570, 23877401; Changed phenotypes: Muscular dystrophy-dystroglycanopathy; Changed mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.3713 HYLS1 Melanie Marty changed review comment from: A recurring homozygous missense variant p.Asp211Gly has been identified in at least 64 cases of hydrolethalus syndrome, described as a Finnish founder mutation (PMID: 15843405, PMID: 18648327). Functional studies in human and patient cells have shown mislocalisation of the protein to the nucleus (PMID: 15843405, PMID: 19400947). Functional studies in c. elegans showed that this variant impaired ciliogenesis (PMID: 19656802). Functional studies in drosophila showed that deletion of HYLS1 led to cilia dysfunction (PMID: 32509774).

2 homozygous living siblings (stop-loss, extension variant p.Ter300TyrextTer11) both diagnosed with Joubert syndrome. Patients had molar tooth signs and dysplasia of cerebellar vermis (PMID: 26830932).

No other variants have been reported as pathogenic in this gene.; to: A recurring homozygous missense variant p.Asp211Gly has been identified in at least 64 cases of hydrolethalus syndrome, described as a Finnish founder mutation (PMID: 15843405, PMID: 18648327). Functional studies in human cells have shown mislocalisation of the protein to the nucleus (PMID: 19400947). Functional studies in c. elegans showed that this variant impaired ciliogenesis (PMID: 19656802). Functional studies in drosophila showed that deletion of HYLS1 led to cilia dysfunction (PMID: 32509774).

2 homozygous living siblings (stop-loss, extension variant p.Ter300TyrextTer11) both diagnosed with Joubert syndrome. Patients had molar tooth signs and dysplasia of cerebellar vermis (PMID: 26830932).

No other variants have been reported as pathogenic in this gene.
Mendeliome v0.3713 CNTN2 Zornitza Stark gene: CNTN2 was added
gene: CNTN2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CNTN2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CNTN2 were set to 23518707
Phenotypes for gene: CNTN2 were set to Epilepsy
Review for gene: CNTN2 was set to RED
Added comment: Single family reported in 2013, supportive mouse model.
Sources: Literature
Mendeliome v0.3711 DNAH8 Zornitza Stark edited their review of gene: DNAH8: Added comment: Four additional individuals with sperm morphological abnormalities and male infertility reported.; Changed rating: GREEN; Changed publications: 31178125, 24307375, 32619401, 32681648
Mendeliome v0.3707 HYLS1 Zornitza Stark Added comment: Comment when marking as ready: Borderline Amber/Green and mechanism unclear. However, given at least two variants reported with a ciliopathy phenotype and supporting functional data from multiple animal models all indicative of ciliopathy, keep Green.
Mendeliome v0.3675 PIGQ Zornitza Stark edited their review of gene: PIGQ: Added comment: Homozygous or compound heterozygous mutations in PIGQ cause Epileptic encephalopathy, early infantile, 77 (MIM #618548).

Johnstone et al (2020 - PMID: 32588908) describe the phenotype of 7 children (from 6 families) with biallelic PIGQ pathogenic variants. The authors also review the phenotype of 3 subjects previously reported in the literature (by Martin et al, Alazami et al, Starr et al - respective PMIDs: 24463883, 25558065, 31148362).

Affected individuals displayed severe to profound global DD/ID and seizures with onset in the first year of life. There were variable other features incl. - among others - genitourinary, cardiac, skeletal, ophthalmological anomalies, gastrointestinal issues. Within the cohort there was significant morbidity/mortality.

PIGQ encodes phosphatidylinositol glycan anchor biosynthesis class Q protein, playing a role (early) in the biosynthesis of the GPI-anchor. Several genes in the GPI biosynthesis pathway cause multi-system disease with DD/ID and seizures. Flow cytometry has been used in individuals with PIGQ-related disorder. Serum ALP was elevated in some (4) although - as the authors comment - elevations are more typical in disorders affecting later steps of GPI biosynthesis.

More than 10 variants have been reported to date (missense / pLoF).; Changed phenotypes: Epileptic encephalopathy, early infantile, 77, MIM# 618548
Mendeliome v0.3673 SEC61B Zornitza Stark gene: SEC61B was added
gene: SEC61B was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: SEC61B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SEC61B were set to 28862642; 30652979; 28375157
Phenotypes for gene: SEC61B were set to Polycystic liver disease with or without renal cysts
Review for gene: SEC61B was set to AMBER
Added comment: Two unrelated individuals reported.
Sources: Expert list
Mendeliome v0.3668 NDUFA8 Zornitza Stark gene: NDUFA8 was added
gene: NDUFA8 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NDUFA8 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NDUFA8 were set to 32385911
Phenotypes for gene: NDUFA8 were set to NDUFA8-related mitochondrial disease; Developmental delay; microcehaly; seizures
Review for gene: NDUFA8 was set to RED
Added comment: Single individual reported with homozygous variant, fibroblasts showed apparent biochemical defects in mitochondrial complex I.
Sources: Literature
Mendeliome v0.3666 DLG5 Zornitza Stark gene: DLG5 was added
gene: DLG5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DLG5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: DLG5 were set to 32631816
Phenotypes for gene: DLG5 were set to Cystic kidneys, nephrotic syndrome, hydrocephalus, limb abnormalities, congenital heart disease and craniofacial malformations
Review for gene: DLG5 was set to GREEN
Added comment: Four unrelated families reported, supportive Xenopus animal model data.
Sources: Literature
Mendeliome v0.3662 RELN Zornitza Stark edited their review of gene: RELN: Changed phenotypes: Lissencephaly 2 (Norman-Roberts type), MIM# 257320, {Epilepsy, familial temporal lobe, 7} 616436
Mendeliome v0.3662 RELN Zornitza Stark Phenotypes for gene: RELN were changed from Lissencephaly 2 (Norman-Roberts type), MIM# 257320; ankylosing spondylitis to Lissencephaly 2 (Norman-Roberts type), MIM# 257320; {Epilepsy, familial temporal lobe, 7}, MIM# 616436; ankylosing spondylitis
Mendeliome v0.3657 AHR Chern Lim gene: AHR was added
gene: AHR was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: AHR was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: AHR were set to 29726989; 31896775
Phenotypes for gene: AHR were set to ?Retinitis pigmentosa 85 MIM#618345; foveal hypoplasia and infantile nystagmus
Review for gene: AHR was set to AMBER
Added comment: - One reported homozygous splice variant in a consanguineous family & a mouse model (PMID: 29726989)

- A homozygous nonsense variant in 1 consanguineous family with foveal hypoplasia and infantile nystagmus (PMID:31896775).
Sources: Literature
Mendeliome v0.3653 CRY1 Ee Ming Wong gene: CRY1 was added
gene: CRY1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CRY1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CRY1 were set to PMID: 28388406; PMID: 32538895
Phenotypes for gene: CRY1 were set to Attention deficit/hyperactivity disorder (ADHD); Delayed sleep phase disorder (DSPD),
Penetrance for gene: CRY1 were set to Incomplete
Review for gene: CRY1 was set to GREEN
gene: CRY1 was marked as current diagnostic
Added comment: - Splice variants identified in 7 families with ADHD and DSPD
- Gain of function suggested for CRY1Δ11 (PMID: 28388406)
- Loss of function suggested for CRY1Δ6 (HEK293T cells transfected with a Per1::Luc reporter plasmid showed reduced repressor activity compared to WT and CRY1Δ11)
Sources: Literature
Mendeliome v0.3647 HPDL Crystle Lee gene: HPDL was added
gene: HPDL was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: HPDL was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: HPDL were set to 32707086
Phenotypes for gene: HPDL were set to Neurological disorder
Review for gene: HPDL was set to GREEN
Added comment: Biallelic variants reported in 13 families with a neurodegenerative disease ranging from neonatal encephalopathy to adolescent-onset spastic paraplegia
Sources: Expert Review
Mendeliome v0.3646 PJA1 Zornitza Stark gene: PJA1 was added
gene: PJA1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PJA1 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: PJA1 were set to 32530565
Phenotypes for gene: PJA1 were set to Intellectual disability; trigonocephaly
Review for gene: PJA1 was set to AMBER
Added comment: Recurrent variant, p.Arg376Cys, reported in 7 Japanese individuals, supportive mouse model. Individuals shared a common haplotype, suggestive of founder effect
Sources: Literature
Mendeliome v0.3645 MYLPF Crystle Lee gene: MYLPF was added
gene: MYLPF was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: MYLPF was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: MYLPF were set to 32707087
Phenotypes for gene: MYLPF were set to Distal arthrogryoposis
Review for gene: MYLPF was set to GREEN
Added comment: 2 different homozygous variants reported in 6 consanguineous families with DA and an additional 2 different dominantly inherited variants in 2 families, with supporting animal model.
Sources: Expert Review
Mendeliome v0.3645 NCKAP1L Michelle Torres gene: NCKAP1L was added
gene: NCKAP1L was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NCKAP1L was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NCKAP1L were set to 32647003
Phenotypes for gene: NCKAP1L were set to Immunodeficiency
Review for gene: NCKAP1L was set to GREEN
Added comment: 5 patients from 4 families with recurrent bacterial and viral skin infections, severe respiratory tract infections leading to pneumonia and bronchiectasis. Functional of the 4 missense reported were performed.
Sources: Literature
Mendeliome v0.3645 MCF2 Zornitza Stark gene: MCF2 was added
gene: MCF2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MCF2 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: MCF2 were set to 31846234
Phenotypes for gene: MCF2 were set to Perisylvian polymicrogyria
Review for gene: MCF2 was set to RED
Added comment: Single individual reported, inherited missense variant from unaffected mother, some support from mouse model.
Sources: Literature
Mendeliome v0.3644 SCAF4 Crystle Lee gene: SCAF4 was added
gene: SCAF4 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: SCAF4 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: SCAF4 were set to 32730804
Phenotypes for gene: SCAF4 were set to Mild intellectual disability; seizures; behavioral abnormalities
Review for gene: SCAF4 was set to GREEN
Added comment: > 5 variants reported in individuals with variable neurodevelopmental disorder characterized by mild intellectual disability, seizures, behavioral abnormalities, and various skeletal and structural anomalies.
Sources: Expert Review
Mendeliome v0.3643 NARS Zornitza Stark gene: NARS was added
gene: NARS was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NARS was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: NARS were set to 32738225
Phenotypes for gene: NARS were set to Abnormal muscle tone; Microcephaly; Global developmental delay; Intellectual disability; Seizures; Ataxia; Abnormality of the face; Demyelinating peripheral neuropathy
Review for gene: NARS was set to GREEN
Added comment: [Please note that HGNC Approved Gene Symbol for this gene is NARS1] Manole et al (2020 - PMID: 32738225) provide evidence that both biallelic and monoallelic (de novo) pathogenic NARS1 variants cause a neurodevelopmental disorder. In total 32 individuals from 21 families are reported, with biallelic variants identified in individuals from 13 families and de novo in 8 families. Similar features were reported for AR/AD occurrences of the disorder and included microcephaly (90% - most often primary), epilepsy (23/32 or 74% - variable semiology incl. partial/myoclonic/generalized tonic-clonic seizures), DD and ID (as a universal feature), abnormal tone in several (hypotonia/spasticity), ataxia, demyelinating peripheral neuropathy (in 3 or more for each inheritance mode - or a total of 25%). Some individuals had dysmorphic features. NARS1 encodes an aminoacyl-tRNA synthetase (ARS) [asparaginyl-tRNA synthetase 1]. Aminoacyl-tRNA synthetases constitute a family of enzymes catalyzing attachment of amino-acids to their cognate tRNAs. As the authors comment, mutations in genes encoding several other ARSs result in neurological disorders ranging from peripheral neuropathy to severe multi-systemic NDD. Dominant, recessive or both modes for inheritance for mutations in the same gene (e.g. AARS1, YARS1, MARS1, etc) have been reported. Some variants were recurrent, e.g. the c.1600C>T / p.Arg534* which occurred in 6 families as a de novo event or c.1633C>T p.Arg545Cys (homozygous in 6 families). 3 different variants were reported to have occured de novo (c.965G>T - p.Arg322Leu, c.1525G>A - p.Gly509Ser, p.Arg534*) with several other variants identified in hmz/compound htz individuals. A single SNV (c.1067A>C - p.Asp356Ala) was suggested to be acting as modifier and pathogenic only when in trans with a severe variant. [NM_004539.4 used as RefSeq for all]. The authors provide several lines of evidence for a partial loss-of-function effect (e.g. reduction in mRNA expression, enzyme levels and activity in fibroblasts or iNPCs) underlying pathogenicity of the variants identified in individuals with biallelic variants. A gain-of-function (dominant-negative) effect is proposed for de novo variants (such effect also demonstrated for the p.Arg534* in a zebrafish model).
Sources: Literature
Mendeliome v0.3635 DDX58 Zornitza Stark changed review comment from: Singleton-Merten syndrome-2 is characterized by variable expression of glaucoma, aortic calcification, and skeletal abnormalities, without dental anomalies.; to: Singleton-Merten syndrome-2 is characterized by variable expression of glaucoma, aortic calcification, and skeletal abnormalities, without dental anomalies. At least 3 families reported.
Mendeliome v0.3631 MAPK1 Zornitza Stark gene: MAPK1 was added
gene: MAPK1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MAPK1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MAPK1 were set to 32721402
Phenotypes for gene: MAPK1 were set to Global developmental delay; Intellectual disability; Behavioral abnormality; Growth delay; Abnormality of the face; Abnormality of the neck; Abnormality of the cardiovascular system; Abnormality of the skin
Review for gene: MAPK1 was set to GREEN
Added comment: Motta et al (2020 - PMID: 32721402) report on 7 unrelated individuals harboring de novo missense MAPK1 pathogenic variants.

The phenotype corresponded to a neurodevelopmental disorder and - as the authors comment - consistently included DD, ID , behavioral problems. Postnatal growth delay was observed in approximately half. Hypertelorism, ptosis, downslant of palpebral fissures, wide nasal bridge as low-set/posteriorly rotated ears were among the facial features observed (each in 3 or more subjects within this cohort). Together with short/webbed neck and abnormalities of skin (lentigines / CAL spots) and growth delay these led to clinical suspicion of Noonan s. or disorder of the same pathway in some. Congenital heart defects (ASD, mitral valve insufficiency, though not cardiomyopathy) occurred in 4/7. Bleeding diathesis and lymphedema were reported only once.

MAPK1 encodes the mitogen-activated protein kinase 1 (also known as ERK2) a serine/threonine kinase of the RAS-RAF-MEK-(MAPK/)ERK pathway.

MAPK1 de novo variants were identified in all individuals following trio exome sequencing (and extensive previous genetic investigations which were non-diagnostic).

The distribution of variants, as well as in silico/vitro/vivo studies suggest a GoF effect (boosted signal through the MAPK cascade. MAPK signaling also upregulated in Noonan syndrome).
Sources: Literature
Mendeliome v0.3624 ERLEC1 Bryony Thompson gene: ERLEC1 was added
gene: ERLEC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ERLEC1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ERLEC1 were set to 32442352
Phenotypes for gene: ERLEC1 were set to Class III malocclusion
Review for gene: ERLEC1 was set to GREEN
Added comment: A heterozygous missense variant was found to co-segregate with dentofacial deformity in a multi-generational Chinese pedigree (2 unaffected carriers & 11 affected carriers), and 3 additional missense variants were identified in 3 unrelated cases from a sporadic malocclusion cohort. Additional functional assays were conducted to demonstrate that the proper level of ERLEC1 expression is crucial for proper osteogenic differentiation. All identified missense variants were assessed using luciferase reporter assays, and altered activity.
Sources: Literature
Mendeliome v0.3590 ANO1 Arina Puzriakova changed review comment from: PMID: 32487539 (2020) - Two affected sibs presenting in early infancy with impaired intestinal peristalsis, intestinal pneumatosis and dysmorphic features. Delayed motor and language development was reported in one sibling, however, the other sibling died at 5 months from cardiac arrest and therefore a psychomotor assessment was performed. Exome sequencing identified a homozygous truncating variant (c.897+3_897+6delAAGT, p.L300Vfs*58) in ANO1 which segregated with disease in the family. Functional data revealed that the variant led to lack of expression of functional TMEM16A in patient cells, which in turn abolished calcium-activated Cl- currents. Also supportive mouse model.
Sources: Literature; to: PMID: 32487539 (2020) - Two affected sibs presenting in early infancy with impaired intestinal peristalsis, intestinal pneumatosis and dysmorphic features. Delayed motor and language development was reported in one sibling, however, the other sibling died at 5 months from cardiac arrest and therefore a psychomotor assessment was not performed. Exome sequencing identified a homozygous truncating variant (c.897+3_897+6delAAGT, p.L300Vfs*58) in ANO1 which segregated with disease in the family. Functional data revealed that the variant led to lack of expression of functional TMEM16A in patient cells, which in turn abolished calcium-activated Cl- currents. Also supportive mouse model.
Sources: Literature
Mendeliome v0.3590 ANO1 Arina Puzriakova gene: ANO1 was added
gene: ANO1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ANO1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ANO1 were set to 32487539
Added comment: PMID: 32487539 (2020) - Two affected sibs presenting in early infancy with impaired intestinal peristalsis, intestinal pneumatosis and dysmorphic features. Delayed motor and language development was reported in one sibling, however, the other sibling died at 5 months from cardiac arrest and therefore a psychomotor assessment was performed. Exome sequencing identified a homozygous truncating variant (c.897+3_897+6delAAGT, p.L300Vfs*58) in ANO1 which segregated with disease in the family. Functional data revealed that the variant led to lack of expression of functional TMEM16A in patient cells, which in turn abolished calcium-activated Cl- currents. Also supportive mouse model.
Sources: Literature
Mendeliome v0.3590 GNPNAT1 Arina Puzriakova changed review comment from: Four affected sibs from a consanguineous Pakistani family with skeletal dysplasia, characterised by severe short stature, rhizomelic shortening of the limbs, and metacarpal and metatarsal length irregularities in the hands and feet. WGS revealed a homozygous missense variant (c.226G>A; p.Glu76Lys) in GNPNAT1, which segregating with the phenotype.
Gnpnat1 gene knockdown in primary rat chondrocytes decreased cellular proliferation and expression of chondrocyte differentiation markers, indicating the importance of Gnpnat1 for growth plate chondrocyte proliferation and differentiation.
Sources: Literature; to: PMID: 32591345 (2020) - Four affected sibs from a consanguineous Pakistani family with skeletal dysplasia, characterised by severe short stature, rhizomelic shortening of the limbs, and metacarpal and metatarsal length irregularities in the hands and feet. WGS revealed a homozygous missense variant (c.226G>A; p.Glu76Lys) in GNPNAT1, which segregating with the phenotype.
Gnpnat1 gene knockdown in primary rat chondrocytes decreased cellular proliferation and expression of chondrocyte differentiation markers, indicating the importance of Gnpnat1 for growth plate chondrocyte proliferation and differentiation. Additional cases required to validate pathogenicity of GNPNAT1.
Sources: Literature
Mendeliome v0.3590 GNPNAT1 Arina Puzriakova gene: GNPNAT1 was added
gene: GNPNAT1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GNPNAT1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GNPNAT1 were set to 32591345
Phenotypes for gene: GNPNAT1 were set to Rhizomelic skeletal dysplasia
Review for gene: GNPNAT1 was set to RED
Added comment: Four affected sibs from a consanguineous Pakistani family with skeletal dysplasia, characterised by severe short stature, rhizomelic shortening of the limbs, and metacarpal and metatarsal length irregularities in the hands and feet. WGS revealed a homozygous missense variant (c.226G>A; p.Glu76Lys) in GNPNAT1, which segregating with the phenotype.
Gnpnat1 gene knockdown in primary rat chondrocytes decreased cellular proliferation and expression of chondrocyte differentiation markers, indicating the importance of Gnpnat1 for growth plate chondrocyte proliferation and differentiation.
Sources: Literature
Mendeliome v0.3582 SOCS1 Bryony Thompson gene: SOCS1 was added
gene: SOCS1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SOCS1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SOCS1 were set to 32499645; 10490099; 10490100
Phenotypes for gene: SOCS1 were set to Common variable immunodeficiency
Review for gene: SOCS1 was set to GREEN
Added comment: 2 unrelated families with truncating variants with supportive immunophenotyping of patient cells, and supporting null mouse models.
Sources: Literature
Mendeliome v0.3561 OBSCN Paul De Fazio gene: OBSCN was added
gene: OBSCN was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: OBSCN was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: OBSCN were set to 30681346; 26573135; 17716621; 25173926; 28630914
Phenotypes for gene: OBSCN were set to Hypertrophic cardiomyopathy
Review for gene: OBSCN was set to RED
gene: OBSCN was marked as current diagnostic
Added comment: Limited evidence by ClinGen working group.

Via ClinGen: 8 probands in 3 publications but only 3 probands from 1 publication were though to have pathogenic variants (others were excluded based on population frequency and expert review).

No additional case reports were found. A mouse model lends some support to the association of this gene with heart disease although not HCM specifically.
Sources: Literature
Mendeliome v0.3561 KLF10 Paul De Fazio gene: KLF10 was added
gene: KLF10 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KLF10 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: KLF10 were set to 22234868
Phenotypes for gene: KLF10 were set to HCM
gene: KLF10 was marked as current diagnostic
Added comment: Curated by ClinGen and rated as limited evidence.

Misssense mutations reported in six unrelated individuals patients (two males/four females), with family history of HCM only reported for one individual (PMID: 22234868). No further reports in the literature.
Sources: Literature
Mendeliome v0.3560 KRT71 Bryony Thompson gene: KRT71 was added
gene: KRT71 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KRT71 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: KRT71 were set to 14632181; 22592156; 19713490
Phenotypes for gene: KRT71 were set to ?Hypotrichosis 13, 615896
Review for gene: KRT71 was set to AMBER
Added comment: A single family with 3 affected members of a 3-generation Japanese family segregating a missense variant (F141C) with autosomal dominant woolly hair/hypotrichosis, with supporting functional assays and animal models.
Sources: Literature
Mendeliome v0.3550 UBE2T Zornitza Stark edited their review of gene: UBE2T: Added comment: Additional family reported, upgrade to Green.; Changed rating: GREEN; Changed publications: 26046368, 32646888
Mendeliome v0.3524 BMP10 Zornitza Stark gene: BMP10 was added
gene: BMP10 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: BMP10 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: BMP10 were set to 30578383
Phenotypes for gene: BMP10 were set to Pulmonary arterial hypertension
Review for gene: BMP10 was set to AMBER
Added comment: A truncating mutation and a predicted loss-of-function missense variant were identified in BMP10 in two severely affected sporadic PAH female patients.
Sources: Expert list
Mendeliome v0.3520 KLF2 Zornitza Stark gene: KLF2 was added
gene: KLF2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: KLF2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: KLF2 were set to 28188237
Phenotypes for gene: KLF2 were set to Pulmonary arterial hypertension
Review for gene: KLF2 was set to RED
Added comment: Single family reported.
Sources: Expert list
Mendeliome v0.3518 ATP13A3 Zornitza Stark gene: ATP13A3 was added
gene: ATP13A3 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: ATP13A3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ATP13A3 were set to 31798832; 30679663; 29650961
Phenotypes for gene: ATP13A3 were set to Pulmonary arterial hypertension
Review for gene: ATP13A3 was set to GREEN
Added comment: Three heterozygous frameshift variants, three stop gained, two splice region variants in ATP13A3, which are predicted to lead to loss of ATPase catalytic activity identified in idiopathic/familial PAH cases. Also one case with putative recessive inheritance reported. ATP13A3 mRNA expression is confirmed in primary PASMCs and endothelial cells where its loss hindered proliferation and enhanced apoptosis of endothelial cells, which is known as the initiation event of PAH.
Sources: Expert list
Mendeliome v0.3507 PLCB3 Zornitza Stark gene: PLCB3 was added
gene: PLCB3 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PLCB3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PLCB3 were set to 29122926
Phenotypes for gene: PLCB3 were set to Spondylometaphyseal dysplasia with corneal dystrophy, MIM# 618961
Review for gene: PLCB3 was set to RED
Added comment: Single consanguineous family reported.
Sources: Expert list
Mendeliome v0.3496 SH2B3 Zornitza Stark changed review comment from: Germline variants reported in association with increased risk for haematological malignancies.; to: Germline variants reported in association with increased risk for haematological malignancies.
Mendeliome v0.3450 DACT1 Natalie Tan gene: DACT1 was added
gene: DACT1 was added to Mendeliome. Sources: NHS GMS
Mode of inheritance for gene: DACT1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: DACT1 were set to PMID: 28054444; 22610794; 19701191
Phenotypes for gene: DACT1 were set to ?Townes-Brocks syndrome 2 (OMIM #617466)
Review for gene: DACT1 was set to RED
Added comment: Webb et al. (2017) reported 6 affected members of a 3-generation family with ?Townes-Brocks syndrome-2, identified heterozygosity for a nonsense mutation in the DACT1 gene that segregated with disease. Clinical features include imperforate anus, rectovaginal fistula, crossed fused renal ectopia, vesicoureteral reflux, unilateral microtia, overfolded helices and cupped ears. One family member (proband's mother) with scoliosis and spina bifida occulta. Neural tube defects reported in a study of human fetuses (PMID: 22610794) and a mouse model (PMID: 19701191). Listed in Decipher v10.0 for an individual with abnormalities of (i) head or neck (ii) nervous system (iii) skeletal system. Unlike the gene SALL1 that causes Townes-Brocks syndrome 1, there is no information specifically relating to DACT1 with radial dysplasia, as these were not observed in the family with ?Townes-Brocks syndrome 2 (PMID: 28054444).
Sources: NHS GMS
Mendeliome v0.3444 ARSG Zornitza Stark Added comment: Comment when marking as ready: Additional family reported with a different variant, upgrade to Amber.
Mendeliome v0.3440 FAM92A Zornitza Stark gene: FAM92A was added
gene: FAM92A was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: FAM92A was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FAM92A were set to 30395363
Phenotypes for gene: FAM92A were set to Polydactyly, postaxial, type A9, MIM# 618219
Review for gene: FAM92A was set to AMBER
Added comment: Single family and a mouse model reported.
Sources: Expert list
Mendeliome v0.3438 KIAA0825 Zornitza Stark gene: KIAA0825 was added
gene: KIAA0825 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KIAA0825 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: KIAA0825 were set to 32147526; 30982135
Phenotypes for gene: KIAA0825 were set to Polydactyly, postaxial, type A10, MIM# 618498
Review for gene: KIAA0825 was set to GREEN
Added comment: Three unrelated families reported.
Sources: Literature
Mendeliome v0.3413 TBC1D32 Zornitza Stark changed review comment from: Three families reported, but phenotypes are broad, some suggestive of ciliopathy.; to: Three families reported now, but phenotypes are broad, some suggestive of ciliopathy.
Mendeliome v0.3413 TBC1D32 Zornitza Stark edited their review of gene: TBC1D32: Added comment: Three families reported, but phenotypes are broad, some suggestive of ciliopathy.; Changed rating: AMBER; Changed publications: 24285566, 32573025, 32060556; Changed phenotypes: Orofaciodigital syndrome type IX, syndromic hypopituitarism
Mendeliome v0.3383 CUX2 Zornitza Stark Added comment: Comment when marking as ready: At least 10 individuals reported with same recurrent de novo missense variant.
Mendeliome v0.3376 GIPC1 Zornitza Stark gene: GIPC1 was added
gene: GIPC1 was added to Mendeliome. Sources: Literature
5'UTR, STR tags were added to gene: GIPC1.
Mode of inheritance for gene: GIPC1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: GIPC1 were set to 32413282
Phenotypes for gene: GIPC1 were set to Oculopharyngodistal myopathy-2 (OPDM2), MIM#618940
Review for gene: GIPC1 was set to AMBER
Added comment: 19 families reported with heterozygous trinucleotide repeat expansion in the 5-prime untranslated region and onset of distal muscle weakness, mainly of the lower limbs, and/or ophthalmoplegia in the second or third decades of life. Note this is unlikely to be tractable currently by most NGS assays.
Sources: Literature
Mendeliome v0.3359 PIGM Zornitza Stark Phenotypes for gene: PIGM were changed from to Glycosylphosphatidylinositol deficiency, MIM# 610293; portal vein thrombosis; persistent absence seizures; macrocephaly; infantile-onset cerebrovascular thrombotic events
Mendeliome v0.3342 PIGM Paul De Fazio reviewed gene: PIGM: Rating: AMBER; Mode of pathogenicity: None; Publications: 31445883, 16767100; Phenotypes: portal vein thrombosis, persistent absence seizures, macrocephaly, infantile-onset cerebrovascular thrombotic events; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes
Mendeliome v0.3331 MCM5 Crystle Lee gene: MCM5 was added
gene: MCM5 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: MCM5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MCM5 were set to 28198391
Phenotypes for gene: MCM5 were set to ?Meier-Gorlin syndrome 8 (MIM#617564)
Review for gene: MCM5 was set to RED
Added comment: Compound heterozgyous variants reported in one patient. Insufficient evidence supporting gene disease association
Sources: Expert Review
Mendeliome v0.3327 KIF21B Zornitza Stark gene: KIF21B was added
gene: KIF21B was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: KIF21B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: KIF21B were set to 32415109
Phenotypes for gene: KIF21B were set to Global developmental delay; Intellectual disability; Abnormality of brain morphology; Microcephaly
Mode of pathogenicity for gene: KIF21B was set to Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments
Review for gene: KIF21B was set to GREEN
Added comment: Asselin et al (2020 - PMID: 32415109) report on 4 individuals with KIF21B pathogenic variants. DD/ID (borderline intellectual functioning to severe ID) was a feature in all. Variable other findings included brain malformations (CCA) and microcephaly. 3 missense variants and a 4-bp insertion were identified, in 3 cases as de novo events while in a single subject the variant was inherited from the father who was also affected. The authors provide evidence for a role of KIF21B in the regulation of processes involved in cortical development and deleterious effect of the missense variants impeding neuronal migration and kinesin autoinhibition. Phenotypes specific to variants (e.g. CCA or microcephaly) were recapitulated in animal models. Missense variants are thought to exert a gain-of-function effect. As commented on, the 4-bp duplication (/frameshift) variant might not be pathogenic. In blood sample from the respective individual, RT-qPCR analysis suggested that haploinsufficiency (NMD) applies. Although Kif21b haploinsufficiency in mice was shown to lead to impaired neuronal positioning, the gene might partially tolerate LoF variants as also suggested by 28 such variants in gnomAD. Homozygous Kif21b ko mice display severe morphological abnormalities, partial loss of commissural fibers, cognitive deficits and altered synaptic transmission (several refs to previous studies provided by the authors).
Sources: Expert Review
Mendeliome v0.3325 TBC1D2B Zornitza Stark gene: TBC1D2B was added
gene: TBC1D2B was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: TBC1D2B was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TBC1D2B were set to 32623794
Phenotypes for gene: TBC1D2B were set to Global developmental delay; Intellectual disability; Seizures; Gingival overgrowth; Behavioral abnormality; Abnormality of the mandible; Abnormality of brain morphology; Abnormality of the eye; Hearing abnormality
Review for gene: TBC1D2B was set to GREEN
Added comment: Harms et al (2020 - PMID: 32623794) report on 3 unrelated individuals with biallelic pLoF TBC1D2B variants. Features included cognitive impairment (mild ID in one case, regression at the age of 12y in another, hypotonia and delayed milestones in a third aged 8m), seizures (3/3 - variable age of onset) and/or gingival overgrowth (2/3 - prior to initiation of AEDs). Other findings included behavioral abnormalities, mandibular anomalies, abnormal brain imaging and ophthalmologic or (rarely) audiometric evaluations. All were born to non-consanguineous couples and additional investigations were performed in some. Variants were identified by WES or trio WGS, with Sanger confirmation/compatible segregation analyses. In line with the pLoF variants, mRNA studies in fibroblasts from 2 unrelated affected individuals demonstrated significantly reduced (~80-90%) TBC1C2D mRNA levels compared to controls, restored following cycloheximide treatment. Protein was absent in patient fibroblasts. TBC-domain containing GTPase activating proteins are known as key regulators of RAB GTPase activity. TBC1D2B was shown to colocalize with RAB5-positive endocytic vesicles. CRISPR/Cas9-mediated ko of TBC1D2B in HeLa cells suggested a role in EGF receptor endocytosis and decreased cell viability of TBC1D2B-deficient HeLa cells upon serum deprivation. Genes encoding other TBC domain-containg GTPase-activating proteins, e.g. TBC1D7 and TBC1D20, TBC1D24 are associated with recessive neurodevelopmental disorders (with ID and/or seizures) and the pathophysiological defect in TBC1D2B-related disorder (deficit in vesicle trafficking and/or cell survival) is proposed to be similar to that of TBC1D24.
Sources: Expert Review
Mendeliome v0.3323 EXOC2 Zornitza Stark gene: EXOC2 was added
gene: EXOC2 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: EXOC2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: EXOC2 were set to 32639540
Phenotypes for gene: EXOC2 were set to Global developmental delay; Intellectual disability; Abnormality of the face; Abnormality of brain morphology
Review for gene: EXOC2 was set to AMBER
Added comment: Van Bergen et al (2020 - PMID: 32639540) report on 3 individuals from 2 families, harboring biallelic EXOC2 mutations. Clinical presentation included DD, ID (severe in 2 subjects from fam1, borderline intellectual functioning in fam2), dysmorphic features and brain abnormalities. Cerebellar anomalies were common to all with a molar tooth sign observed in one (1/3). Other findings limited to subjects from one family included acquired microcephaly, congenital contractures, spastic quadriplegia (each observed 2/3). Previous investigations were in all cases non-diagnostic. WES identified biallelic EXOC2 mutations in all affected individuals. EXOC2 encodes an exocyst subunit. The latter is an octameric complex, component of the membrane transport machinery, required for tethering and fusion of vesicles at the plasma membrane. As discussed ,vesicle transport is important for the development of brain and the function of neurons and glia. Exocyst function is also important for delivery of Arl13b to the primary cilium (biallelic ARL13B mutations cause Joubert syndrome 8) and ciliogenesis. Affected subjects from a broader consanguineous family (fam1) were homozygous for a truncating variant. Fibroblast studies revealed mRNA levels compatible with NMD (further restored in presence of CHX) as well as reduced protein levels. The female belonging to the second non-consanguineous family was found to harbor 2 missense variants in trans configuration. An exocytosis defect was demonstrated in fibroblasts from individuals belonging to both families. Ciliogenesis appeared to be normal, however Arl13b localization/recruitment to the cilia was reduced compared with control cells with the defect rescued upon exogenous expression of wt EXOC2. Mutations in other genes encoding components of the exocyst complex have been previously reported in individuals with relevant phenotypes (e.g. EXOC8 in a boy with features of Joubert s. or EXOC4 in nephrotic syndrome). The authors discuss on the essential role of EXOC2 based on model organism studies (e.g. impaired neuronal membrane traffic, failure of neuronal polarization and neuromuscular junction expansion seen in Drosophila Sec5 (EXOC2) null mutants).
Sources: Expert Review
Mendeliome v0.3321 CCDC174 Zornitza Stark gene: CCDC174 was added
gene: CCDC174 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: CCDC174 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CCDC174 were set to 26358778
Phenotypes for gene: CCDC174 were set to Hypotonia, infantile, with psychomotor retardation - IHPMR, 616816
Review for gene: CCDC174 was set to AMBER
Added comment: Biallelic pathogenic CCDC174 variants cause Hypotonia, infantile, with psychomotor retardation - IHPMR (MIM 616816). Volodarsky et al [2015 - PMID: 26358778] describe 6 children from 2 unrelated families with - among others - severe hypotonia, psychomotor delay and abducens nerve palsy. All affected subjects were homozygous for a stoploss variant. Evidence from functional studies/animal model is provided supporting the role of the gene in this phenotype. Overall this gene can be considered for inclusion in the ID panel with amber rating (2 families, single founder variant, consistent phenotype, supportive studies) pending further reports.
Sources: Expert Review
Mendeliome v0.3319 ACOX2 Zornitza Stark edited their review of gene: ACOX2: Added comment: Third family reported.; Changed rating: GREEN; Changed publications: 27647924, 27884763, 29287774
Mendeliome v0.3318 ABCA2 Zornitza Stark gene: ABCA2 was added
gene: ABCA2 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: ABCA2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ABCA2 were set to 30237576; 29302074; 31047799
Phenotypes for gene: ABCA2 were set to Intellectual developmental disorder with poor growth and with or without seizures or ataxia, 618808
Review for gene: ABCA2 was set to GREEN
Added comment: Biallelic pathogenic ABCA2 variants cause Intellectual developmental disorder with poor growth and with or without seizures or ataxia (MIM 618808). There are 3 relevant publications (01-07-2020) : - Maddirevula et al [2019 - PMID: 30237576] described briefly 2 unrelated subjects (16-2987, 16DG0071) both DD and seizures among other manifestations. - Hu et al [2019 - PMID: 29302074] reported 3 sibs (M8600615 - III:1-3) born to consanguineous parents (M8600615 - III:1-3) with DD/ID (formal confirmation of moderate ID, in those (2) evaluated). One also presented with seizures. - Aslam and Naz [2019 - PMID: 31047799] provided clinical details on 2 siblings born to consanguineous parents. ID was reported for the older sib but was absent in the younger one. Seizures were not part of the phenotype. All subjects harbored biallelic pLoF variants. N.B. : Steinberg et al [2015 - PMID: 25773295], within a cohort of patients with ALS, identified one with biallelic ABCA2 variants. As however Aslam and Naz comment, this person harbored a single pathogenic variant, with a second one rather unlikely to be pathogenic due to high allele frequency. Overall this gene can be considered for inclusion with green rating in both ID and epilepsy panels (each in >=3 unrelated individuals).
Sources: Expert Review
Mendeliome v0.3308 SGMS2 Bryony Thompson gene: SGMS2 was added
gene: SGMS2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: SGMS2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SGMS2 were set to 30779713; 32028018
Phenotypes for gene: SGMS2 were set to Calvarial doughnut lesions with bone fragility with or without spondylometaphyseal dysplasia MIM#126550
Review for gene: SGMS2 was set to GREEN
Added comment: 12 patients from 6 unrelated families with the same stopgain variant (p.Arg50*), with osteoporosis that resembles osteogenesis imperfecta. In vitro over-expression assays of the variant demonstrate protein that was completely mislocalized in the cytosolic and nuclear compartments. 2 unrelated families were heterozygous for 2 missense (p.Ile62Ser, p.Met64Arg) with bone fragility and severe short stature, and spondylometaphyseal dysplasia. In vitro assays of each variant demonstrated an enhanced rate of de novo sphingomyelin production by blocking export of a functional enzyme from the endoplasmic reticulum.
Sources: Expert list
Mendeliome v0.3278 GLS Zornitza Stark edited their review of gene: GLS: Added comment: In addition, single individual also reported with de novo, GoF variant with profound ID, cataract.; Changed publications: 30575854, 30970188, 30239721
Mendeliome v0.3268 P4HA1 Zornitza Stark gene: P4HA1 was added
gene: P4HA1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: P4HA1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: P4HA1 were set to 28419360
Phenotypes for gene: P4HA1 were set to Joint hypermobility; Contractures; Hypotonia; Mild skeletal dysplasia without bone fragility; High myopia
Review for gene: P4HA1 was set to RED
Added comment: Single family reported with two affected individuals.
Sources: Expert list
Mendeliome v0.3266 GGPS1 Zornitza Stark gene: GGPS1 was added
gene: GGPS1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GGPS1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GGPS1 were set to 32403198
Phenotypes for gene: GGPS1 were set to Muscular dystrophy; Deafness; Ovarian insufficiency
Review for gene: GGPS1 was set to GREEN
Added comment: 11 individuals from 6 unrelated families reported. In addition to proximal weakness, all but one patient presented with congenital sensorineural hearing loss, and all postpubertal females had primary ovarian insufficiency. Muscle histology was dystrophic, with ultrastructural evidence of autophagic material and large mitochondria in the most severe cases. Knock-in mouse of one of the mutations (Y259C) resulted in prenatal lethality.
Sources: Literature
Mendeliome v0.3263 CRYGA Zornitza Stark gene: CRYGA was added
gene: CRYGA was added to Mendeliome. Sources: Expert list
refuted tags were added to gene: CRYGA.
Mode of inheritance for gene: CRYGA was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CRYGA were set to 30450742; 28839118
Phenotypes for gene: CRYGA were set to Cataract
Review for gene: CRYGA was set to RED
Added comment: Reported as potentially disease causing in multiple individuals from two seperate families, but in both cases variant is present in the general population (20 Hets for one variant, >1000 hets and 9 homs in other variant)
Sources: Expert list
Mendeliome v0.3250 CFAP74 Zornitza Stark gene: CFAP74 was added
gene: CFAP74 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CFAP74 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CFAP74 were set to 32555313
Phenotypes for gene: CFAP74 were set to Primary ciliary dyskinesia; infertility
Review for gene: CFAP74 was set to AMBER
Added comment: Two unrelated individuals with compound het missense variants reported.
Sources: Literature
Mendeliome v0.3242 SREBF1 Paul De Fazio gene: SREBF1 was added
gene: SREBF1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SREBF1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: SREBF1 were set to 32497488
Phenotypes for gene: SREBF1 were set to IFAP (ichthyosis follicularis, atrichia, and photophobia) syndrome
Review for gene: SREBF1 was set to GREEN
gene: SREBF1 was marked as current diagnostic
Added comment: 11 unrelated, ethnically diverse individuals with autosomal-dominant IFAP syndrome. 3 different msisense variants identified affecting the same region (residues 527, 528, and 530). Functional studies support impaired function (impaired nuclear translocation of the transcriptionally active form of SREBP1 resulting in lower expression of the SREBP1 variants). Increased keratinocyte apoptosis was observed in patient scalp samples.
Sources: Literature
Mendeliome v0.3240 KIAA1217 Zornitza Stark gene: KIAA1217 was added
gene: KIAA1217 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KIAA1217 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: KIAA1217 were set to 32369272
Phenotypes for gene: KIAA1217 were set to Vertebral anomalies, syndromic and non-syndromic
Review for gene: KIAA1217 was set to AMBER
Added comment: 10 families reported, however note only 3 of the variants were absent from gnomad, inheritance not reported, most variants are missense.
Sources: Literature
Mendeliome v0.3231 ADPRHL2 Zornitza Stark changed review comment from: Ataxia is part of the phenotype.
Sources: Expert list; to: 14 families reported, onset is in the first years of life following normal early development. Patients have cyclic episodic deterioration in response to stress, such as infection or febrile illness. The severity is highly variable: some patients develop seizures early in life that are associated with loss of developmental milestones and early sudden death in childhood, whereas others present at a later age with muscle weakness, gait ataxia, impaired speech, more subtle clinical deterioration, and cognitive decline. Neurologic involvement includes gait ataxia, cerebellar signs associated with cerebellar atrophy, generalized brain atrophy, impaired intellectual development, hearing loss, and peripheral neuropathy.
Sources: Expert list
Mendeliome v0.3230 GPR161 Zornitza Stark gene: GPR161 was added
gene: GPR161 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GPR161 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: GPR161 were set to 31609649
Phenotypes for gene: GPR161 were set to Predisposition to paediatric medulloblastoma
Review for gene: GPR161 was set to GREEN
Added comment: 6 unrelated individuals reported with germline variants, 5 with truncating, one missense. Somatic second hit in tumour tissue.
Sources: Literature
Mendeliome v0.3225 ARF1 Zornitza Stark gene: ARF1 was added
gene: ARF1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: ARF1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ARF1 were set to 28868155
Phenotypes for gene: ARF1 were set to Periventricular nodular heterotopia 8, MIM# 618185
Review for gene: ARF1 was set to GREEN
Added comment: Three unrelated individuals reported with de novo missense in this gene.
Sources: Expert list
Mendeliome v0.3222 MRAS Zornitza Stark changed review comment from: Two unrelated individuals reported with de novo variants in this gene. Rated as LIMITED by ClinGen.
Sources: Expert list; to: Two unrelated individuals reported with de novo variants in this gene initially. Rated as LIMITED by ClinGen in 2018. Note 4 further individuals reported since.
Sources: Expert list
Mendeliome v0.3222 MRAS Zornitza Stark gene: MRAS was added
gene: MRAS was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MRAS was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MRAS were set to 28289718
Phenotypes for gene: MRAS were set to Noonan syndrome
Review for gene: MRAS was set to AMBER
Added comment: Two unrelated individuals reported with de novo variants in this gene. Rated as LIMITED by ClinGen.
Sources: Expert list
Mendeliome v0.3216 NRG1 Bryony Thompson gene: NRG1 was added
gene: NRG1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: NRG1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: NRG1 were set to 22574178; 21706185; 28190554
Phenotypes for gene: NRG1 were set to Hirschsprung disease
Review for gene: NRG1 was set to AMBER
Added comment: Has been reported as a Hirschsprung disease susceptibility loci, with common, low-penetrance polymorphisms that contribute only partially to risk and can act as genetic modifiers. There are also two publications with rare variants reported in this gene (at least one de novo) and supporting in vitro functional assays. A null zebrafish model was also supportive of a role in Hirschsprung disease.
Sources: Expert list
Mendeliome v0.3211 CCDC32 Zornitza Stark Added comment: Comment when marking as ready: Three affected individuals from two unrelated families, supportive animal model and other functional data consistent with this being a ciliopathy.
Mendeliome v0.3202 CAPZA2 Eleanor Williams gene: CAPZA2 was added
gene: CAPZA2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CAPZA2 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: CAPZA2 were set to 32338762
Phenotypes for gene: CAPZA2 were set to intellectual disability
Review for gene: CAPZA2 was set to AMBER
Added comment: PMID: 32338762 - Huang et al 2020 - report 2 unrelated families (Chinese and European) in which a de novo heterozygous variant has been identified in CAPZA2 in paediatric probands that present with global motor development delay, speech delay, intellectual disability, hypotonia. One proband had seizures at 7 months but these were controlled with medication and did not repeat. The other proband at age one had an atypical febrile seizure that was controlled without medication. Functional studies in Drosophila suggest that these variants are mild loss of function mutations but that they can act as dominant negative variants in actin polymerization in bristles.
Sources: Literature
Mendeliome v0.3202 PPP3R1 Eleanor Williams gene: PPP3R1 was added
gene: PPP3R1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PPP3R1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: PPP3R1 were set to 32337552; 19159392
Phenotypes for gene: PPP3R1 were set to Deafness, autosomal dominant 58 MIM#615654
Review for gene: PPP3R1 was set to RED
Added comment: PMID: 32337552 - Lezirovitz et al 2020- ~200 Kb genomic duplication in 2p14 was found that segregates with postlingual progressive sensorineural autosomal dominant hearing loss in a large Brazilian family with 20 affected individuals (the reported DFNA58 family from PMID: 19159392). The duplication covers PLEK and CNRIP1, and the first exon of PPP3R1 (protein coding), as well as four uncharacterized long non-coding RNA genes and part of a novel protein-coding gene. Cnrip1, Plek and Ppp3r1 genes are all expressed in the adult mouse cochlea and CNRIP1 mRNA was overexpressed in affected family members.
Sources: Literature
Mendeliome v0.3202 PLEK Eleanor Williams gene: PLEK was added
gene: PLEK was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PLEK was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: PLEK were set to 32337552; 19159392
Phenotypes for gene: PLEK were set to Deafness, autosomal dominant 58 MIM#615654
Review for gene: PLEK was set to RED
Added comment: PMID: 32337552 - Lezirovitz et al 2020- ~200 Kb genomic duplication in 2p14 was found that segregates with postlingual progressive sensorineural autosomal dominant hearing loss in a large Brazilian family with 20 affected individuals (the reported DFNA58 family from PMID: 19159392). The duplication covers PLEK and CNRIP1, and the first exon of PPP3R1 (protein coding), as well as four uncharacterized long non-coding RNA genes and part of a novel protein-coding gene. Cnrip1, Plek and Ppp3r1 genes are all expressed in the adult mouse cochlea and CNRIP1 mRNA was overexpressed in affected family members.
Sources: Literature
Mendeliome v0.3202 CNRIP1 Eleanor Williams gene: CNRIP1 was added
gene: CNRIP1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CNRIP1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: CNRIP1 were set to 32337552; 19159392
Phenotypes for gene: CNRIP1 were set to Deafness, autosomal dominant 58 MIM#615654
Review for gene: CNRIP1 was set to RED
Added comment: PMID: 32337552 - Lezirovitz et al 2020- ~200 Kb genomic duplication in 2p14 was found that segregates with postlingual progressive sensorineural autosomal dominant hearing loss in a large Brazilian family with 20 affected individuals (the reported DFNA58 family from PMID: 19159392). The duplication covers PLEK and CNRIP1, and the first exon of PPP3R1 (protein coding), as well as four uncharacterized long non-coding RNA genes and part of a novel protein-coding gene. Cnrip1, Plek and Ppp3r1 genes are all expressed in the adult mouse cochlea and CNRIP1 mRNA was overexpressed in affected family members.
Sources: Literature
Mendeliome v0.3202 CCDC32 Eleanor Williams gene: CCDC32 was added
gene: CCDC32 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CCDC32 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CCDC32 were set to 32307552
Phenotypes for gene: CCDC32 were set to craniofacial, cardiac and neurodevelopmental anomalies
Review for gene: CCDC32 was set to AMBER
Added comment: PMID: 32307552 - Harel et al 2020 - reports 2 unrelated consanguineous families with probands with homozygous frameshift variants in CCDC32. Parents are heterozygous. Phenotype is a congenital syndrome characterized by craniofacial, cardiac and neurodevelopmental anomalies. Functional studies in zebrafish show that ccdc32 depletion impairs cilia formation and shows a role for ccdc32 in craniofacial, brain and left/right axis development.
Sources: Literature
Mendeliome v0.3202 SKIV2L Zornitza Stark changed review comment from: Multiple families reported with trichohepatoenteric syndrome.; to: Multiple families reported with trichohepatoenteric syndrome, agree unclear if ID is an association.
Mendeliome v0.3198 NLRP5 Zornitza Stark gene: NLRP5 was added
gene: NLRP5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NLRP5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NLRP5 were set to 32222962; 31829238; 30877238
Phenotypes for gene: NLRP5 were set to Early embryonic arrest
Review for gene: NLRP5 was set to AMBER
Added comment: At least two families reported.
Sources: Literature
Mendeliome v0.3195 HNRNPH1 Zornitza Stark gene: HNRNPH1 was added
gene: HNRNPH1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: HNRNPH1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: HNRNPH1 were set to 32335897; 29938792
Phenotypes for gene: HNRNPH1 were set to HNRNPH1‐related syndromic intellectual disability
Review for gene: HNRNPH1 was set to GREEN
Added comment: 1st patient reported in 2018 with intellectual disability and dysmorphic features and HNRNPH1 heterozygous missense variant. 2020 paper reports additional 7 cases with ID, short stature, microcephaly, distinctive dysmorphic facial features, and congenital anomalies (cranial, brain, genitourinary, palate, ophthalmologic). They all had HNRNPH1 heterozygous pathogenic variants (missense, frameshift, in‐frame deletion, entire gene duplication) and were identified using clinical networks and GeneMatcher. No comments in paper if all de novo.
Sources: Literature
Mendeliome v0.3188 ADAMTS3 Zornitza Stark gene: ADAMTS3 was added
gene: ADAMTS3 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: ADAMTS3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ADAMTS3 were set to 28985353; 30450763
Phenotypes for gene: ADAMTS3 were set to Hennekam lymphangiectasia-lymphedema syndrome 3 (618154)
Review for gene: ADAMTS3 was set to GREEN
Added comment: Two families reported, supportive functional data.
Sources: Expert list
Mendeliome v0.3185 MCM3AP Eleanor Williams changed review comment from: PMID: 32202298 - Woldegebriel et al - report a further two families, one in the Netherlands and one in Estonia, with probands with compound heterozygous variants in MCM3AP and a peripheral neuropathy with or without impaired intellectual development (MIM 618124) phenotype. The child from the Netherlands presented with severe hypotonia and intellectual disability. The two siblings from the Estonian family had severe generalized epilepsy and mild spastic diplegia. Functional studies using skin fibroblasts from these and other affected patients showed that disease variants result in depletion of GANP (encoded by MCM3AP) except when they alter critical residues in the Sac3 mRNA binding domain. GANP depletion was associated with more severe phenotypes compared with the Sac3 variants.; to: PMID: 32202298 - Woldegebriel et al 2020 - report a further two families, one in the Netherlands and one in Estonia, with probands with compound heterozygous variants in MCM3AP and a peripheral neuropathy with or without impaired intellectual development (MIM 618124) phenotype. The child from the Netherlands presented with severe hypotonia and intellectual disability. The two siblings from the Estonian family had severe generalized epilepsy and mild spastic diplegia. Functional studies using skin fibroblasts from these and other affected patients showed that disease variants result in depletion of GANP (encoded by MCM3AP) except when they alter critical residues in the Sac3 mRNA binding domain. GANP depletion was associated with more severe phenotypes compared with the Sac3 variants.
Mendeliome v0.3185 SP6 Eleanor Williams gene: SP6 was added
gene: SP6 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SP6 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: SP6 were set to 32167558; 18156176; 18297738; 22676574
Phenotypes for gene: SP6 were set to hypoplastic amelogenesis imperfecta
Review for gene: SP6 was set to AMBER
Added comment: PMID: 32167558 - Smith et al 2020 - report a 2 bp variant c.817_818GC>AA in SP6 in a Caucasian family with autosomal dominant hypoplastic AI which results in a missense change. Report that mice and rat knockouts also show a dental phenotype (PMID: 18156176, 18297738, 22676574 )
Sources: Literature
Mendeliome v0.3182 CACNB1 Zornitza Stark gene: CACNB1 was added
gene: CACNB1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: CACNB1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CACNB1 were set to 27832566; 8943043; 29212769
Phenotypes for gene: CACNB1 were set to Malignant hyperthermia susceptibility
Added comment: A single heterozygous case with a positive IVCT muscle biopsy has been reported with p.Val156Ala. The European non-Finnish allele frequency in gnomAD v2.1 is 0.001146 (148/129,118 alleles), which is higher than the expected population frequency for dominantly inherited malignant hyperthermia (0.1%). Additionally, functional assays of this variant, suggest it would only significantly affect function in the homozygous state (suggesting a recessive condition).
Sources: Expert list
Mendeliome v0.3174 TSHZ1 Zornitza Stark changed review comment from: Two individuals reported with LoF variants, both with a phenotype of congenital aural atresia and hyposmia (PMID: 22152683). Temporal and spatial expression of Tshz1 mRNA during development of the middle ear is consistent with the phenotype (PMID: 17586487). Tsh2 null mouse model showed a middle ear malformation, and neonatal lethality. A conditional nervous system-specific Tshz1 knock out mouse model demonstrated hyposmia (PMIDs: 24487590; 17586487).; to: Two individuals reported with LoF variants, both with a phenotype of congenital aural atresia and hyposmia (PMID: 22152683). Temporal and spatial expression of Tshz1 mRNA during development of the middle ear is consistent with the phenotype (PMID: 17586487). Tsh2 null mouse model showed a middle ear malformation, and neonatal lethality. A conditional nervous system-specific Tshz1 knock out mouse model demonstrated hyposmia (PMIDs: 24487590; 17586487). Also note original report contains four individuals with deletions of this gene, further supporting gene-disease association.
Mendeliome v0.3156 AXL Bryony Thompson gene: AXL was added
gene: AXL was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: AXL was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: AXL were set to 18787040; 24476074
Phenotypes for gene: AXL were set to Kallman syndrome; normosmic idiopathic hypogonadotropic hypogonadism
Review for gene: AXL was set to AMBER
Added comment: Axl null mice had delayed first oestrus and persistently abnormal oestrous cyclicality compared with wild-type controls. Only a single study reported screening human cases. In a screen of 104 probands with KS or nIHH, four heterozygous AXL mutations were identified in two KS and two nIHH unrelated subjects (two males and two females). Three of the variants appear to be too common in gnomAD v2.1 given the reported prevalence of KS reported in GeneReviews (1:30,000 in males and 1:125,000 in females): c.587-6C>T (normal splicing in RNA studies, NFE AF 0.0001472), p.Q361P (NFE 0.002560), p.L50F (AJ 0.004405). The other variant p.S202C (4 hets, 1 female in gnomAD v2.1) is rare enough in gnomAD for a dominant disorder. In vitro functional assays were conducted and p.S202C had an significant effect on function, but so did the more common variant p.Q361P.
Sources: Literature
Mendeliome v0.3125 FITM2 Bryony Thompson gene: FITM2 was added
gene: FITM2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: FITM2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FITM2 were set to 28067622; 30214770; 30288795
Phenotypes for gene: FITM2 were set to Siddiqi syndrome MIM#618635; dystonia; deafness
Review for gene: FITM2 was set to GREEN
Added comment: 7 cases from 3 unrelated families (2 consanguineous) with a dystonia-deafness syndrome and a supporting Drosophila model.
Sources: Expert list
Mendeliome v0.3110 STAG3 Bryony Thompson gene: STAG3 was added
gene: STAG3 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: STAG3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: STAG3 were set to 24597867; 26059840; 31803224; 31363903
Phenotypes for gene: STAG3 were set to Premature ovarian failure 8 MIM#615723
Review for gene: STAG3 was set to GREEN
Added comment: At least four unrelated families with ovarian failure and a supporting null mouse model.
Sources: Expert list
Mendeliome v0.3108 SOHLH1 Bryony Thompson gene: SOHLH1 was added
gene: SOHLH1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: SOHLH1 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: SOHLH1 were set to 25774885; 16690745; 31042289; 20506135; 28718531
Phenotypes for gene: SOHLH1 were set to Ovarian dysgenesis 5 MIM#617690; Spermatogenic failure 32 MIM#618115
Review for gene: SOHLH1 was set to GREEN
Added comment: Women in 3 unrelated families with ovarian dysgenesis and homozygous variants, and a supporting null mouse model.
At least 4 males with heterozygous variants and spermatogenic failure.
Sources: Expert list
Mendeliome v0.3106 HFM1 Bryony Thompson gene: HFM1 was added
gene: HFM1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: HFM1 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: HFM1 were set to 23555294; 24597873; 31279343
Phenotypes for gene: HFM1 were set to Premature ovarian failure 9 MIM#615724
Review for gene: HFM1 was set to GREEN
Added comment: Three cases from 2 unrelated families with compound heterozygous variants, and a single family with a heterozygous variant have been reported with ovarian failure. There is also a supporting null mouse model.
Sources: Expert list
Mendeliome v0.3088 DCAF8 Bryony Thompson gene: DCAF8 was added
gene: DCAF8 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: DCAF8 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: DCAF8 were set to 24500646
Phenotypes for gene: DCAF8 were set to Giant axonal neuropathy 2, autosomal dominant MIM#610100
Review for gene: DCAF8 was set to AMBER
Added comment: A single large family segregating a missense variant and in vitro functional assays demonstrating the variant reduces the association of DCAF8 and DDB1, which is important in Cul4-ubiquitin E3 function
Sources: Expert list
Mendeliome v0.3086 ARL6IP1 Bryony Thompson gene: ARL6IP1 was added
gene: ARL6IP1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: ARL6IP1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ARL6IP1 were set to 24482476; 31272422; 30980493; 28471035
Phenotypes for gene: ARL6IP1 were set to Spastic paraplegia 61, autosomal recessive MIM#615685
Review for gene: ARL6IP1 was set to GREEN
gene: ARL6IP1 was marked as current diagnostic
Added comment: At least 4 families reported with paediatric onset complicated spastic paraplegia and neuropathy. Supporting zebrafish model.
Sources: Expert list
Mendeliome v0.3084 PMP2 Bryony Thompson gene: PMP2 was added
gene: PMP2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PMP2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PMP2 were set to 26257172; 26828946; 27009151
Phenotypes for gene: PMP2 were set to Charcot-Marie-Tooth disease, demyelinating, type 1G MIM#618279
Review for gene: PMP2 was set to GREEN
Added comment: 4 unrelated families reported with missense variants, with supporting transgenic mouse and null zebrafish models.
Sources: Expert list
Mendeliome v0.3073 RYR3 Zornitza Stark gene: RYR3 was added
gene: RYR3 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: RYR3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RYR3 were set to 29498452; 32451403; 31230720
Phenotypes for gene: RYR3 were set to Nemaline myopathy; fetal akinesia; arthrogryposis
Review for gene: RYR3 was set to AMBER
Added comment: One family reported with nemaline myopathy and other cases reported as part of large fetal akinesia/arthrogryposis discovery cohorts reporting multiple novel gene candidates.
Sources: Expert list
Mendeliome v0.3065 HMGA2 Zornitza Stark edited their review of gene: HMGA2: Added comment: At least four families reported with SNVs.; Changed rating: GREEN; Changed publications: 29655892, 25809938, 29453418, 29655892, 28796236; Changed phenotypes: Silver-Russel syndrome, MIM#618908
Mendeliome v0.3050 LIMS2 Zornitza Stark gene: LIMS2 was added
gene: LIMS2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: LIMS2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: LIMS2 were set to 25589244; 16317048
Phenotypes for gene: LIMS2 were set to Muscular dystrophy, autosomal recessive, with cardiomyopathy and triangular tongue MIM#616827
Review for gene: LIMS2 was set to RED
Added comment: Only one family reported and Pinch2 -/- mice were viable and fertile with no apparent phenotype.
Sources: Expert list
Mendeliome v0.3048 PSMB1 Zornitza Stark gene: PSMB1 was added
gene: PSMB1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PSMB1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PSMB1 were set to 32129449
Phenotypes for gene: PSMB1 were set to Intellectual disability; microcephaly
Review for gene: PSMB1 was set to AMBER
Added comment: Two siblings reported with a homozygous missense variant in this gene; supportive experimental evidence including zebrafish model.
Sources: Literature
Mendeliome v0.3044 C16orf62 Zornitza Stark changed review comment from: HGNC approved name: VPS35L. Two variants have been reported as compound heterozygotes in two sibs with features of 3C/Ritscher-Schinzel syndrome. Functional studies show that loss of VPS35L function results in impared autophagy and VPS35L knockout mouse resulted in early embrionic lethality (PMID 25434475).
Sources: Expert list; to: HGNC approved name: VPS35L. Two variants have been reported as compound heterozygotes in two sibs with features of 3C/Ritscher-Schinzel syndrome. Functional studies show that loss of VPS35L function results in impared autophagy and VPS35L knockout mouse resulted in early embrionic lethality (PMID 25434475;31712251).
Sources: Expert list
Mendeliome v0.3037 C16orf62 Zornitza Stark gene: C16orf62 was added
gene: C16orf62 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: C16orf62 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: C16orf62 were set to 25434475
Phenotypes for gene: C16orf62 were set to 3C/Ritscher-Schinzel-like syndrome
Review for gene: C16orf62 was set to AMBER
Added comment: HGNC approved name: VPS35L. Two variants have been reported as compound heterozygotes in two sibs with features of 3C/Ritscher-Schinzel syndrome. Functional studies show that loss of VPS35L function results in impared autophagy and VPS35L knockout mouse resulted in early embrionic lethality (PMID 25434475).
Sources: Expert list
Mendeliome v0.3028 NUP88 Zornitza Stark gene: NUP88 was added
gene: NUP88 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NUP88 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NUP88 were set to 30543681
Phenotypes for gene: NUP88 were set to Fetal akinesia deformation sequence 4, MIM# 618393
Review for gene: NUP88 was set to GREEN
Added comment: Two unrelated families, functional data on the variants support pathogenicity as does a zebrafish model.
Sources: Literature
Mendeliome v0.3024 RBL2 Zornitza Stark gene: RBL2 was added
gene: RBL2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RBL2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RBL2 were set to 32105419; 9806916
Phenotypes for gene: RBL2 were set to Intellectual disability
Review for gene: RBL2 was set to RED
Added comment: Single family reported with pair of affected siblings. Supportive mouse model.
Sources: Literature
Mendeliome v0.3022 GRM7 Zornitza Stark gene: GRM7 was added
gene: GRM7 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GRM7 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GRM7 were set to 32286009; 32248644
Phenotypes for gene: GRM7 were set to Epilepsy, microcephaly, developmental delay
Review for gene: GRM7 was set to GREEN
Added comment: Eleven individuals from six families reported, three different homozygous variants (two missense, one LoF). Developmental delay, neonatal‐ or infantile‐onset epilepsy, and microcephaly were universal. Supportive mouse model.
Sources: Literature
Mendeliome v0.3017 PERP Zornitza Stark gene: PERP was added
gene: PERP was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PERP was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PERP were set to 31898316
Phenotypes for gene: PERP were set to Erythrokeratoderma, no OMIM # yet
Review for gene: PERP was set to AMBER
Added comment: One extended multiplex consanguineous family with Erythrokeratoderma (striking similarity to that observed in Perp −/− mice), and a novel homozygous variant (c.466G>A; p.Gly156Arg) in PERP that fully segregated with the phenotype. Functional analysis of patient‐ and control‐derived keratinocytes revealed a deleterious effect of the identified variant on the intracellular localization of PERP. A previous report showed that PERP mutation causes a dominant form of keratoderma but a single patient in that report with a homozygous variant in PERP suggests that recessive inheritance is also possible.
Sources: Literature
Mendeliome v0.3013 LEF1 Zornitza Stark gene: LEF1 was added
gene: LEF1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: LEF1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: LEF1 were set to 32022899
Phenotypes for gene: LEF1 were set to Ectodermal dysplasia, no OMIM# yet
Review for gene: LEF1 was set to RED
Added comment: In mice, targeted inactivation of the LEF1 gene results in a complete block of development of multiple ectodermal appendages. One report of two unrelated patients with 4q25 de novo deletion encompassing LEF1 , associated with severe oligodontia of primary and permanent dentition, hypotrichosis and hypohidrosis compatible with hypohidrotic ectodermal dysplasia. So far, no pathogenic variants or variations involving the LEF1 gene have been reported in human.
Sources: Literature
Mendeliome v0.2996 ARL13B Zornitza Stark edited their review of gene: ARL13B: Added comment: Eight families reported in the literature. Many are homozygous missense variants in consanguineous families with no further supporting evidence, but sufficient number have functional evidence at protein level. Gene has appropriate tissue expression. Zebrafish model: curved tails and cystic kidneys. Hennin mouse model discovered in ENU mutagenesis screen: has polydactyly, ciliary defect, and much more severe neurological phenotype (neural tube defect).; Changed publications: 18674751, 25138100, 26092869, 27894351, 29255182, 17488627
Mendeliome v0.2987 TTC5 Zornitza Stark gene: TTC5 was added
gene: TTC5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TTC5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TTC5 were set to 29302074; 32439809
Phenotypes for gene: TTC5 were set to Central hypotonia; Global developmental delay; Intellectual disability; Abnormality of nervous system morphology; Microcephaly; Abnormality of the face; Behavioral abnormality; Abnormality of the genitourinary system
Review for gene: TTC5 was set to GREEN
Added comment: Eleven individuals from seven families reported.
Sources: Literature
Mendeliome v0.2977 HIST1H4J Zornitza Stark gene: HIST1H4J was added
gene: HIST1H4J was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: HIST1H4J was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: HIST1H4J were set to 31804630
Phenotypes for gene: HIST1H4J were set to microcephaly; intellectual disability; dysmorphic features
Review for gene: HIST1H4J was set to AMBER
Added comment: Single case report but with functional evidence in zebrafish and phenotypic similarity to other HIST1H4C phenotype
Sources: Literature
Mendeliome v0.2971 TOR1AIP1 Zornitza Stark Added comment: Comment when marking as ready: Highly variable phenotype. Few of the features are consistently reported across affected individuals.
Mendeliome v0.2965 USP8 Bryony Thompson gene: USP8 was added
gene: USP8 was added to Mendeliome. Sources: Expert list
somatic tags were added to gene: USP8.
Mode of inheritance for gene: USP8 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: USP8 were set to 25675982; 24482476; 25485838; 25942478
Phenotypes for gene: USP8 were set to Pituitary adenoma 4, ACTH-secreting, somatic MIM#219090; hereditary spastic paraplegia
Review for gene: USP8 was set to GREEN
Added comment: Recurrent somatic gain of function missense variants in pituitary adenomas cause Cushing's disease.
A single family reported with spastic paraplegia with a homozygous variant, and a zebrafish model with a movement disorder.
Sources: Expert list
Mendeliome v0.2959 SCYL2 Zornitza Stark gene: SCYL2 was added
gene: SCYL2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SCYL2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SCYL2 were set to 31960134; 26203146
Phenotypes for gene: SCYL2 were set to Arthrogryposis multiplex congenita (AMC); Zain syndrome
Review for gene: SCYL2 was set to AMBER
Added comment: Two unrelated families reported with AMC, variable other features including microcephaly.
Sources: Literature
Mendeliome v0.2950 PLD3 Bryony Thompson gene: PLD3 was added
gene: PLD3 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PLD3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PLD3 were set to 29053796; 30312375; 30312384
Phenotypes for gene: PLD3 were set to Spinocerebellar ataxia 46 MIM#617770
Review for gene: PLD3 was set to AMBER
Added comment: A heterozygous missense was identified in 8 affected members of a single family with spinocerebellar ataxia, and supporting in vitro functional assays.
Sources: Expert list
Mendeliome v0.2944 POC5 Bryony Thompson gene: POC5 was added
gene: POC5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: POC5 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: POC5 were set to 25642776; 29272404
Phenotypes for gene: POC5 were set to Idiopathic scoliosis; retinitis pigmentosa; short stature; microcephaly; recurrent glomerulonephritis
Review for gene: POC5 was set to GREEN
Added comment: Three heterozygous missense variants identified in three families segregating with idiopathic scoliosis, and supporting zebrafish models for each of the missense variants.
Also, one case reported with retinitis pigmentosa, short stature, microcephaly, and recurrent glomerulonephritis with a homozygous truncating variant and a supporting zebrafish model.
Sources: Literature
Mendeliome v0.2943 KIF3B Paul De Fazio gene: KIF3B was added
gene: KIF3B was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KIF3B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Phenotypes for gene: KIF3B were set to hepatic fibrosis; retinitis pigmentosa; postaxial polydactyly
Review for gene: KIF3B was set to AMBER
Added comment: 2 families reported with missense variants, one de novo and one segregating in a six-generation pedigree. Functional studies in zebrafish showed the variants result in impaired rhodopsin trafficking.
Sources: Literature
Mendeliome v0.2942 RBM7 Bryony Thompson gene: RBM7 was added
gene: RBM7 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: RBM7 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RBM7 were set to 27193168
Phenotypes for gene: RBM7 were set to SMA-like spinal motor neuropathy; dHMN/dSMA
Review for gene: RBM7 was set to AMBER
Added comment: Single case with a homozygote variant, with functional assays in patient fibroblasts. Also, supporting zebrafish model.
Sources: Expert list
Mendeliome v0.2906 SNRNP200 Ain Roesley changed review comment from: PMID: 31260034; more than 20 families reported with either de novo or AD with RP or retinal dystrophy (RD)

PMID: 29320387; p.(Arg1090Gln) in a proband with RP from a consag family with unaffected het parents and sibling

PMID: 23847139; p.(Pro1045Thr) homozygous in a patient with Leber congenital amaurosis (LCA)

PMID: 31260034: p.(Arg545His) homozygous in a patient with RP with asymptomatic het parents and sister

PMID: 27735924: in a patient with RP who is cHet for p.(Pro105Thr) in SNRNP200 and a 1.4Mb deletion spanning SNRNP200. Father is a carrier of the missense and is unaffected and the deletion was de novo; to: PMID: 31260034; more than 20 families reported with either de novo or AD with RP or retinal dystrophy (RD)

PMID: 29320387; p.(Arg1090Gln) in a proband with RP from a consag family with unaffected het parents and sibling

PMID: 23847139; p.(Pro1045Thr) homozygous in a patient with Leber congenital amaurosis (LCA)

PMID: 31260034: p.(Arg545His) homozygous in a patient with RP with asymptomatic het parents and sister

PMID: 27735924: in a patient with RP who is cHet for p.(Pro105Thr) in SNRNP200 and a 1.1Mb deletion spanning SNRNP200. Father is a carrier of the missense and is unaffected and the deletion was de novo
Mendeliome v0.2906 SNRNP200 Ain Roesley changed review comment from: PMID: 31260034; more than 20 families reported with either de novo or AD with RP or retinal dystrophy (RD)

PMID: 29320387; p.(Arg1090Gln) in a proband with RP from a consag family with unaffected het parents and sibling

PMID: 23847139; p.(Pro1045Thr) homozygous in a patient with Leber congenital amaurosis (LCA)

PMID: 31260034: p.(Arg545His) homozygous in a patient with RP with asymptomatic het parents and sister

PMID: 27735924: in a patient with RP who is cHet for p.(Pro105Thr) in SNRNP200 and a 1.1Mb deletion spanning SNRNP200. Father is a carrier of the missense and is unaffected and the deletion was de novo; to: PMID: 31260034; more than 20 families reported with either de novo or AD with RP or retinal dystrophy (RD)

PMID: 29320387; p.(Arg1090Gln) in a proband with RP from a consag family with unaffected het parents and sibling

PMID: 23847139; p.(Pro1045Thr) homozygous in a patient with Leber congenital amaurosis (LCA)

PMID: 31260034: p.(Arg545His) homozygous in a patient with RP with asymptomatic het parents and sister

PMID: 27735924: in a patient with RP who is cHet for p.(Pro105Thr) in SNRNP200 and a 1.4Mb deletion spanning SNRNP200. Father is a carrier of the missense and is unaffected and the deletion was de novo
Mendeliome v0.2889 ARL3 Bryony Thompson gene: ARL3 was added
gene: ARL3 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: ARL3 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: ARL3 were set to 30269812; 16565502; 26964041; 30932721
Phenotypes for gene: ARL3 were set to Joubert syndrome 35 MIM#618161; Retinitis pigmentosa 83 MIM#618173
Review for gene: ARL3 was set to GREEN
Added comment: 4 patients from 2 unrelated consanguineous families with a phenotype resembling Joubert syndrome with homozygous missense mutations affecting the same residue (R149C, R149H), and supporting in vitro functional assays. All reported cases had rod-cone dystrophy. An Arl3 null mouse model has a ciliary disease phenotype affecting the kidney, biliary tract, pancreas, and retina.
Two unrelated families with retinitis pigmentosa segregating the same heterozygous missense variant (Y90C).
Sources: Expert list
Mendeliome v0.2880 DALRD3 Zornitza Stark gene: DALRD3 was added
gene: DALRD3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DALRD3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: DALRD3 were set to 32427860
Phenotypes for gene: DALRD3 were set to Epileptic encephalopathy
Review for gene: DALRD3 was set to AMBER
Added comment: Two individuals reported with same homozygous nonsense variant, functional data.
Sources: Literature
Mendeliome v0.2867 DHX30 Zornitza Stark Added comment: Comment when marking as ready: Twelve unrelated individuals reported with de novo missense variants, some recurrent.
Mendeliome v0.2857 ADIPOR1 Zornitza Stark Marked gene: ADIPOR1 as ready
Mendeliome v0.2857 ADIPOR1 Zornitza Stark Gene: adipor1 has been classified as Amber List (Moderate Evidence).
Mendeliome v0.2857 ADIPOR1 Zornitza Stark Phenotypes for gene: ADIPOR1 were changed from to Retinitis pigmentosa
Mendeliome v0.2856 ADIPOR1 Zornitza Stark Publications for gene: ADIPOR1 were set to
Mendeliome v0.2855 ADIPOR1 Zornitza Stark Mode of inheritance for gene: ADIPOR1 was changed from Unknown to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.2854 ADIPOR1 Zornitza Stark Classified gene: ADIPOR1 as Amber List (moderate evidence)
Mendeliome v0.2854 ADIPOR1 Zornitza Stark Gene: adipor1 has been classified as Amber List (Moderate Evidence).
Mendeliome v0.2853 ADIPOR1 Zornitza Stark reviewed gene: ADIPOR1: Rating: AMBER; Mode of pathogenicity: None; Publications: 27655171, 26662040; Phenotypes: Retinitis pigmentosa; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.2853 TRIP12 Zornitza Stark commented on gene: TRIP12: At least 10 unrelated patients reported with ID with or without autism (PMIDs: 27848077, 28251352).
Mendeliome v0.2847 CLCC1 Bryony Thompson gene: CLCC1 was added
gene: CLCC1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: CLCC1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CLCC1 were set to 30157172
Phenotypes for gene: CLCC1 were set to Retinitis pigmentosa 32
Review for gene: CLCC1 was set to AMBER
Added comment: A presumptive Pakastani founder mutation (c.75C>A, p.D25E) was identified in 8 consanguineous arRP families. A knockout zebrafish model and a Clcc1 +/- mouse model had a supporting retinal phenotype.
Sources: Expert list
Mendeliome v0.2842 B9D1 Zornitza Stark changed review comment from: Two unrelated individuals with JS and bi-allelic variants in this gene, plus one individual with a more severe Meckel phenotype described. Intellectual disability is part of the phenotype.
Sources: Expert list; to: Two unrelated individuals with JS and bi-allelic variants in this gene, plus one individual with a more severe Meckel phenotype described. This latter individual had a splice site variant and a deletion. Splice variant proven to result in exon skipping -> PTC, but the deletion spans a large region including 18 other genes. Patient also had an additional variant in CEP290 called LP. Authors perform functional studies on patient cells but given the large deletion/CEP290 variant i dont see the results are usable PMID: 25920555 - another report of digenic inheritance - not usable, patient was only heterozygous for a single B9D1 variant.
Mendeliome v0.2839 BBIP1 Zornitza Stark edited their review of gene: BBIP1: Added comment: Additional family reported.; Changed publications: 24026985, 32055034
Mendeliome v0.2832 STARD7 Zornitza Stark gene: STARD7 was added
gene: STARD7 was added to Mendeliome. Sources: Expert list
STR tags were added to gene: STARD7.
Mode of inheritance for gene: STARD7 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: STARD7 were set to 11701600; 24114805; 31664034
Phenotypes for gene: STARD7 were set to Epilepsy, familial adult myoclonic, 2, 607876
Mode of pathogenicity for gene: STARD7 was set to Other
Review for gene: STARD7 was set to GREEN
Added comment: 158 individuals from 22 families reported with heterozygous 5-bp repeat expansion (ATTTC)n in intron 1 of the STARD7 gene.
Sources: Expert list
Mendeliome v0.2814 LRRC56 Elena Savva gene: LRRC56 was added
gene: LRRC56 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: LRRC56 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: LRRC56 were set to PMID: 30388400
Phenotypes for gene: LRRC56 were set to Ciliary dyskinesia, primary, 39 618254
Added comment: PMID: 30388400 - used protist null model to show abnormal ciliary beatings, replicated the phenotype when the protist was transfected with mutant allele observed in a patient.
3 unrelated families reported with either homozygous splice, missense or chet (nonsense/splice). Patients exhibited phenotypes including chronic respiratory/ear infections, situs inversus
Sources: Expert list
Mendeliome v0.2806 GFI1B Bryony Thompson gene: GFI1B was added
gene: GFI1B was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GFI1B was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: GFI1B were set to 24325358; 23927492; 28041820; 11825872
Phenotypes for gene: GFI1B were set to Bleeding disorder, platelet-type, 17 MIM#187900
Review for gene: GFI1B was set to GREEN
Added comment: Three families with a heterozygous variant and one case with a homozygous variant, with supporting in vitro functional assays. A null mouse model contained erythroid and megakaryocytic precursors arrested in their development.
Sources: Literature
Mendeliome v0.2791 CEP112 Bryony Thompson gene: CEP112 was added
gene: CEP112 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CEP112 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CEP112 were set to 31654588
Phenotypes for gene: CEP112 were set to Acephalic spermatozoa; infertility
Review for gene: CEP112 was set to AMBER
Added comment: Two unrelated cases reported with acephalic spermatozoa, one case with a homozygous nonsense variant and the other case with biallelic missense variants. CEP112 expression was significantly reduced in one of the cases, suggesting loss of function as a mechanism of disease.
Sources: Literature
Mendeliome v0.2790 PRKD1 Kristin Rigbye changed review comment from: Only 3 pathogenic missense reported to date, although two of these are recurring in unrelated individuals (ClinVar, Decipher, PMID: 27479907). No functional studies performed.; to: Only 3 pathogenic missense reported to date in unrelated individuals (ClinVar, Decipher, PMID: 27479907). No functional studies performed.
Mendeliome v0.2788 NR4A2 Zornitza Stark gene: NR4A2 was added
gene: NR4A2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NR4A2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: NR4A2 were set to 31428396; 30504930; 29770430; 12756136; 9092472
Phenotypes for gene: NR4A2 were set to Intellectual disability; epilepsy
Review for gene: NR4A2 was set to GREEN
Added comment: Over ten individuals reported with mono-allelic variants in this gene and neurodevelopmental phenotypes. Link with dementia/Parkinson's disease disputed.
Sources: Literature
Mendeliome v0.2786 TOMM70 Zornitza Stark gene: TOMM70 was added
gene: TOMM70 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: TOMM70 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: TOMM70 were set to 31907385; 32356556
Phenotypes for gene: TOMM70 were set to Severe anaemia, lactic acidosis, developmental delay; White matter abnormalities, developmental delay, regression, movement disorder
Review for gene: TOMM70 was set to AMBER
Added comment: TOM70 is a member of the TOM complex that transports cytosolic proteins into mitochondria.
Bi-allelic disease: one individual reported with compound heterozygous variants in TOMM70 [c.794C>T (p.T265M) and c.1745C>T (p.A582V)]. Clinical features included severe anaemia, lactic acidosis, and developmental delay. Some functional data: in vitro cell model compensatory experiments.
Monoallelic disease: de novo mono allelic variants in the C-terminal region of TOMM70 reported in two individuals. While both individuals exhibited shared symptoms including hypotonia, hyperreflexia, ataxia, dystonia, and significant white matter abnormalities, there were differences between the two individuals, most prominently the age of symptom onset, with one experiencing episodes of regression. Some functional data.
Sources: Expert list
Mendeliome v0.2771 KLB Zornitza Stark gene: KLB was added
gene: KLB was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KLB was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: KLB were set to 28754744
Review for gene: KLB was set to GREEN
Added comment: Seven heterozygous loss‐of‐function KLB mutations in 13 individuals reported. In mice, lack of Klb led to delayed puberty, altered estrous cyclicity, and subfertility due to a hypothalamic defect associated with inability of GnRH neurons to release GnRH in response to FGF21.
Functional analysis showed decreased activity in response to FGF21 and FGF8.
KLB is an obligate coreceptor for FGF21 alongside FGFR1.
Sources: Literature
Mendeliome v0.2769 NDNF Zornitza Stark gene: NDNF was added
gene: NDNF was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NDNF was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: NDNF were set to 31883645
Phenotypes for gene: NDNF were set to Congenital hypogonadotropic hypogonadism (CHH)
Review for gene: NDNF was set to GREEN
Added comment: Three heterozygous protein-truncating variants and one heterozygous missense variant identified in a cohort of 240 unrelated IHH patients. The authors also provided supporting evidence from animal models.
Sources: Literature
Mendeliome v0.2767 UGDH Zornitza Stark gene: UGDH was added
gene: UGDH was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: UGDH was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: UGDH were set to 32001716
Phenotypes for gene: UGDH were set to Epileptic encephalopathy, early infantile, 84 - MIM #618792
Review for gene: UGDH was set to GREEN
Added comment: 36 individuals with biallelic UGDH pathogenic variants reported. The phenotype corresponded overall to a developmental epileptic encephalopathy with hypotonia, feeding difficulties, severe global DD, moderate or commonly severe ID in all. Hypotonia and motor disorder (incl. spasticity, dystonia, ataxia, chorea, etc) often occurred prior to the onset of seizures. A single individual did not present seizures and 2 sibs had only seizures in the setting of fever. There were no individuals with biallelic pLoF variants identified. Parental/sib studies were all compatible with AR inheritance mode.

UGDH encodes the enzyme UDP-glucose dehydrogenase which converts UDP-glucose to UDP-glucuronate, the latter being a critical component of the glycosaminoglycans, hyaluronan, chondroitin sulfate, and heparan sulfate. Patient fibroblast and biochemical assays suggested a LoF effect of variants leading to impairment of UGDH stability, oligomerization or enzymatic activity (decreased UGDH-catalyzed reduction of NAD+ to NADH / hyaluronic acid production which requires UDP-glucuronate).

Attempts to model the disorder using an already developped zebrafish model (for a hypomorphic LoF allele) were unsuccessful as fish did not exhibit seizures spontaneously or upon induction with PTZ. Modelling of the disorder in vitro using patient-derived cerebral organoids demonstrated smaller organoids due to reduced number of proliferating neural progenitors
Sources: Literature
Mendeliome v0.2764 YIF1B Zornitza Stark gene: YIF1B was added
gene: YIF1B was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: YIF1B was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: YIF1B were set to 32006098; 26077767
Phenotypes for gene: YIF1B were set to Central hypotonia; Failure to thrive; Microcephaly; Global developmental delay; Intellectual disability; Seizures; Spasticity; Abnormality of movement
Review for gene: YIF1B was set to GREEN
Added comment: 6 individuals (from 5 families) with biallelic YIF1B truncating variants reported. Presenting features: hypotonia, failure to thrive, microcephaly (5/6), severe global DD and ID as well as features suggestive of a motor disorder (dystonia/spasticity/dyskinesia). Seizures were reported in 2 unrelated individuals (2/6). MRI abnormalities were observed in some with thin CC being a feature in 3. Affected individuals were found to be homozygous for truncating variants (4/5 families being consanguineous). The following 3 variants were identified (NM_001039672.2) : c.186dupT or p.Ala64fs / c.360_361insACAT or p.Gly121fs / c.598G>T or p.Glu200*. Yif1B KO mice demonstrate a disorganized Golgi architecture in pyramidal hippocampal neurons (Alterio et al 2015 - PMID: 26077767). Functional/network analysis of genes co-regulated with YIF1B based on available RNAseq data, suggest enrichement in in genes important for nervous system development and function.
Sources: Literature
Mendeliome v0.2759 TNRC6B Zornitza Stark edited their review of gene: TNRC6B: Added comment: 17 unrelated individuals with heterozygous TNRC6B variants reported. Features included hypotonia (10/17), DD/ID (17/17 - ID was not universal: average IQ of 12 individuals was 73 (range : 50-113) with 4 having below 70), ADHD (11/17), ASD or autistic traits (8/17 and 5/17). Some/few presented with abnormal OFC (micro- / macrocephaly in 3/17 and 2/17), abnormal vision or hearing, variable other congenital anomalies, echocardiographic, GI or renal abnormalities, etc. Epilepsy was reported in 1/17. There was no recognisable gestalt.Detected variants included 14 pLoF, 1 missense SNV and 2 intragenic deletions. Variants had occurred as de novo events in 10/13 subjects for whom testing of both parents was possible. 3/13 subjects had inherited the variant from a parent with milder phenotype. Based on the type of variants identified, the pLI score of 1 in gnomAD and the HI index of 5.61%, the authors suggest haploinsufficiency as the most likely mechanism. Individuals with de novo TNRC6B variants have also been reported in larger cohorts (e.g. DDD study - PMID: 28135719, Iossifov et al - PMID: 25363768, Lelieveld et al - PMID: 27479843, Jónsson et al - PMID: 28959963). A previous study provided details on 2 sibs harboring a translocation which disrupted both TNRC6B and TCF20 (also associated with ID)(Babbs et al - PMID: 25228304).; Changed rating: GREEN; Changed publications: 32152250, 28135719, 25363768, 27479843, 28959963, 25228304; Changed phenotypes: Global developmental delay, Intellectual disability, Autistic behavior; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.2758 CDC42BPB Zornitza Stark gene: CDC42BPB was added
gene: CDC42BPB was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CDC42BPB was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CDC42BPB were set to 32031333
Phenotypes for gene: CDC42BPB were set to Central hypotonia; Global developmental delay; Intellectual disability; Seizures; Autistic behavior; Behavioral abnormality
Review for gene: CDC42BPB was set to GREEN
Added comment: 14 individuals with missense and loss-of-function CDC42BPB variants reported. Features included hypotonia (8/11), DD (12/13 - the 14th was a fetus), ID (7/13), ASD (8/12), clinical seizures (in 3 - a 4th had abnormal EEG without seizures), behavioral abnormalities. Variable non-specific dysmorphic features were reported in some (sparse hair being the most frequent - 4/8). Additional features were observed in few (=<4) incl. cryptorchidism, ophthalmological issues, constipation, kidney abnormalities, micropenis, etc. Most variants occurred as de novo events (11/14) while inheritance was not available for few (3/14).
Sources: Literature
Mendeliome v0.2742 CFAP43 Elena Savva gene: CFAP43 was added
gene: CFAP43 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CFAP43 was set to BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
Publications for gene: CFAP43 were set to PMID: 31884020; 28552195; 31004071; 29449551
Phenotypes for gene: CFAP43 were set to Hydrocephalus, normal pressure, 1 236690; Spermatogenic failure 19 617592
Added comment: aka WDR96

PMID: 31884020 - animal models (mouse, frog) demonstrate the protein localizes in ciliary axoneme and is involved in MOTILE cilia movement. LOF CFAP43 caused mucus acucmulation in airways, impaired spermatogenesis and hydrocephalus.

PMID: 28552195 - 3x chet (bilallelic PTCs or chet PTC/missense) with abnormal sperm motility. Null mouse models were also infertile.

PMID: 31004071 - one family with a heterozygous nonsense and AD inheritance of late onset hydrocephaly (checked in Mutalyzer, variant is NMD predicted). Abnormal cilia observed from mucosa sample. Null mice also show abnormal sperm and dilation of brain ventricles.

PMID: 29449551 - reports an additional 10 patients with either homozygous PTCs or chet PTC/missense who were infertile with flagella defects

Summary: single report of AD hydrocephaly
Sources: Literature
Mendeliome v0.2681 MAN2B2 Zornitza Stark gene: MAN2B2 was added
gene: MAN2B2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MAN2B2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MAN2B2 were set to 31775018
Phenotypes for gene: MAN2B2 were set to Congenital disorder of glycosylation; immunodeficiency
Review for gene: MAN2B2 was set to RED
Added comment: Single individual reported.
Sources: Literature
Mendeliome v0.2676 PIK3CG Zornitza Stark gene: PIK3CG was added
gene: PIK3CG was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PIK3CG was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PIK3CG were set to 32001535; 31554793
Phenotypes for gene: PIK3CG were set to Immune dysregulation; HLH-like; childhood-onset antibody defects; cytopenias; T lymphocytic pneumonitis and colitis
Review for gene: PIK3CG was set to GREEN
Added comment: Two individuals with complex immunological phenotypes reported and a mouse model.
Sources: Literature
Mendeliome v0.2674 RC3H1 Zornitza Stark changed review comment from: Single individual with bi-allelic LoF variant and relapsing HLH reported, some functional data.
Sources: Literature; to: Single individual with bi-allelic LoF variant and relapsing HLH reported, some functional data including mouse model.
Sources: Literature
Mendeliome v0.2674 RC3H1 Zornitza Stark gene: RC3H1 was added
gene: RC3H1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RC3H1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RC3H1 were set to 31636267
Phenotypes for gene: RC3H1 were set to Relapsing HLH
Review for gene: RC3H1 was set to RED
Added comment: Single individual with bi-allelic LoF variant and relapsing HLH reported, some functional data.
Sources: Literature
Mendeliome v0.2669 ITPKB Zornitza Stark gene: ITPKB was added
gene: ITPKB was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ITPKB was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ITPKB were set to 31987846
Phenotypes for gene: ITPKB were set to Severe combined immunodeficiency, absent T cells, present B cells and NK cells
Review for gene: ITPKB was set to RED
Added comment: Single individual with homozygous bi-allelic LoF variant reported.
Sources: Literature
Mendeliome v0.2668 PSMB10 Zornitza Stark gene: PSMB10 was added
gene: PSMB10 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PSMB10 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PSMB10 were set to 31783057
Phenotypes for gene: PSMB10 were set to Autoinflammatory syndrome
Review for gene: PSMB10 was set to RED
Added comment: PSMB10 is part of the immunoproteasome, and other components cause auto inflammatory disorders. Single individual with homozygous missense variant reported.
Sources: Literature
Mendeliome v0.2659 SNORA31 Zornitza Stark gene: SNORA31 was added
gene: SNORA31 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: SNORA31 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SNORA31 were set to 31806906
Phenotypes for gene: SNORA31 were set to Susceptibility to HSV1 encephalitis
Review for gene: SNORA31 was set to GREEN
Added comment: Five unrelated individuals reported with rare missense variants in this gene, functional data to support susceptibility to herpes simplex encephalitis.
Sources: Expert list
Mendeliome v0.2641 CDK5 Zornitza Stark changed review comment from: Single consanguineous family with multiple affected individuals reported.; to: Single consanguineous family with multiple affected individuals reported.
Mendeliome v0.2636 VPS51 Zornitza Stark gene: VPS51 was added
gene: VPS51 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: VPS51 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: VPS51 were set to 30624672; 31207318
Phenotypes for gene: VPS51 were set to Pontocerebellar hypoplasia, type 13, MIM# 618606
Review for gene: VPS51 was set to AMBER
Added comment: Two families reported with bi-allelic variants in this gene and global developmental delay, impaired intellectual development with absent speech, microcephaly, and progressive atrophy of the cerebellar vermis and brainstem. Additional features, including seizures and visual impairment, are variable.
Sources: Expert list
Mendeliome v0.2634 CDK19 Zornitza Stark gene: CDK19 was added
gene: CDK19 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CDK19 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CDK19 were set to 32330417
Phenotypes for gene: CDK19 were set to Intellectual disability; epileptic encephalopathy
Review for gene: CDK19 was set to GREEN
Added comment: Three unrelated individuals with de novo missense variants reported, and intellectual disability/epileptic encephalopathy. Supportive functional data.
Sources: Literature
Mendeliome v0.2632 MNS1 Zornitza Stark gene: MNS1 was added
gene: MNS1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MNS1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MNS1 were set to 31534215; 30148830
Phenotypes for gene: MNS1 were set to Heterotaxy; male infertility
Review for gene: MNS1 was set to GREEN
Added comment: Eight families reported altogether, three LoF variants. Four Amish families share same homozygous founder variant, and some of the other reported families are consanguineous and share another founder variant. A reported female with a third variant, also had a homozygous variant in DNAH5 with a blended phenotype postulated.
Sources: Literature
Mendeliome v0.2630 DHX37 Zornitza Stark gene: DHX37 was added
gene: DHX37 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DHX37 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: DHX37 were set to 31337883; 31745530
Phenotypes for gene: DHX37 were set to 46,XY gonadal dysgenesis; testicular regression syndrome (TRS)
Review for gene: DHX37 was set to GREEN
Added comment: Seventeen individuals with 46,XY gonadal dysgenesis reported in two studies.
Sources: Literature
Mendeliome v0.2625 ALPK1 Zornitza Stark changed review comment from: Three unrelated families reported. One of the variants segregated in four affected individuals in one family and another was found to be de novo. The third variant however was not segregated, and is also present in 18 individuals in gnomad. Hence the evidence for variant pathogenicity in this third case is not compelling.
Sources: Literature; to: Three unrelated families reported with PFAPA phenotype. One of the variants segregated in four affected individuals in one family and another was found to be de novo. The third variant however was not segregated, and is also present in 18 individuals in gnomad. Hence the evidence for variant pathogenicity in this third case is not compelling.
Sources: Literature
Mendeliome v0.2625 ALPK1 Zornitza Stark edited their review of gene: ALPK1: Added comment: Six unrelated families reported with same recurrent missense variant c.710C>T, (p.Thr237Met) and ROSAH syndrome phenotype. Pancytopaenia and recurrent infections present in some.; Changed rating: GREEN; Changed publications: 31053777, 30967659, 31939038; Changed phenotypes: Periodic fever, aphthous stomatitis, pharyngitis and adenitis (PFAPA) syndrome, ROSAH syndrome, retinal dystrophy, optic nerve edema, splenomegaly, anhidrosis, and migraine headache
Mendeliome v0.2624 MEPE Zornitza Stark gene: MEPE was added
gene: MEPE was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MEPE was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MEPE were set to 30287925
Phenotypes for gene: MEPE were set to hereditary congenital facial paresis; otosclerosis
Review for gene: MEPE was set to AMBER
Added comment: Single four-generation family reported with variant in this gene segregating nonprogressive HCFP and mixed hearing loss (HL). Damaging variants (truncating/frameshift) found to be enriched in otosclerosis cohort (p = 0.0006–0.0060).
Sources: Literature
Mendeliome v0.2623 PAICS Zornitza Stark gene: PAICS was added
gene: PAICS was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PAICS was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PAICS were set to 31600779
Phenotypes for gene: PAICS were set to Polyhydramnios; multiple congenital abnormalities
Review for gene: PAICS was set to RED
Added comment: Two sibs from single family reported with homozygous missense variant. Functional data to demonstrate effect on protein function.
Sources: Literature
Mendeliome v0.2611 TSPEAR Chern Lim changed review comment from: Still a rare disease gene for ectodermal dysplasia but has been reported in at least 3 unrelated families. Functional study supported LoF. (PMIDs: 27736875, 30046887); to: Still a rare disease gene for ectodermal dysplasia but has been reported in at least 3 unrelated families in 2 papers. Functional study supported LoF. (PMIDs: 27736875, 30046887)
Mendeliome v0.2611 FOXF2 Zornitza Stark Added comment: Comment when marking as ready: Single family: variant has functional data to demonstrate effect on protein, plus mouse model supports gene-disease association.
Mendeliome v0.2607 FOXF2 Hazel Phillimore changed review comment from: Homozygous missense, NM_001452.1: c.325A>T (p.I109F), in a 10 year old girl (consanguineous, parents were first cousins) with profound sensorineural hearing loss (SNHL) associated with incomplete partition type I anomaly of the cochlea. This variant is absent in the gnomAD v2.1.1. In vitro studies indicated instability, shorter half-life of the protein compared to wildtype. Embryonic knockout mouse showed shortened and malformed cochleae, in addition to altered shape of hair cells with innervation and planar cell polarity defects. Homozygous knockout mice do not survive. (Bademci, G. et al. (2019); PMID: 30561639).
This gene has also been reported in association with other anomalies including cleft lip, cleft palate, brain anomalies, intestine anomalies, and eye anomalies. Eye anomalies include anterior segment dysgenesis, as shown in mice with variant, W174R, affecting the Fox domain. Homozygote mice do not survive. (McKeone, R. et al. (2011); PMID: 22022403).
Sources: Literature; to: Homozygous missense, NM_001452.1: c.325A>T (p.I109F), in a 10 year old girl (consanguineous, parents were first cousins) with profound sensorineural hearing loss (SNHL) associated with incomplete partition type I anomaly of the cochlea. This variant is absent in the gnomAD v2.1.1. In vitro studies indicated instability, shorter half-life of the protein compared to wildtype. Embryonic knockout mouse showed shortened and malformed cochleae, in addition to altered shape of hair cells with innervation and planar cell polarity defects. Homozygous knockout mice do not survive. (Bademci, G. et al. (2019); PMID: 30561639).
This gene has also been reported in association with other anomalies including cleft lip, cleft palate, brain anomalies, intestine anomalies, and eye anomalies. Eye anomalies include anterior segment dysgenesis, as shown in mice with variant, W174R, affecting the Fox domain. Homozygote mice do not survive. (McKeone, R. et al. (2011); PMID: 22022403).
Previous names for FOXF2 include FKHL6 and FREAC2.
Sources: Literature
Mendeliome v0.2607 FOXF2 Hazel Phillimore gene: FOXF2 was added
gene: FOXF2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FOXF2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FOXF2 were set to PMID: 30561639; 22022403
Phenotypes for gene: FOXF2 were set to profound sensorineural hearing loss (SNHL); cochlea malformations; incomplete partition type I anomaly of the cochlea
Review for gene: FOXF2 was set to AMBER
Added comment: Homozygous missense, NM_001452.1: c.325A>T (p.I109F), in a 10 year old girl (consanguineous, parents were first cousins) with profound sensorineural hearing loss (SNHL) associated with incomplete partition type I anomaly of the cochlea. This variant is absent in the gnomAD v2.1.1. In vitro studies indicated instability, shorter half-life of the protein compared to wildtype. Embryonic knockout mouse showed shortened and malformed cochleae, in addition to altered shape of hair cells with innervation and planar cell polarity defects. Homozygous knockout mice do not survive. (Bademci, G. et al. (2019); PMID: 30561639).
This gene has also been reported in association with other anomalies including cleft lip, cleft palate, brain anomalies, intestine anomalies, and eye anomalies. Eye anomalies include anterior segment dysgenesis, as shown in mice with variant, W174R, affecting the Fox domain. Homozygote mice do not survive. (McKeone, R. et al. (2011); PMID: 22022403).
Sources: Literature
Mendeliome v0.2602 CACNB4 Zornitza Stark changed review comment from: One multigenerational family and supportive animal model data.; to: One multigenerational family with ataxia and supportive animal model data.
Mendeliome v0.2602 CACNB4 Zornitza Stark edited their review of gene: CACNB4: Added comment: PMID 32176688: A homozygous missense variant (Leu126Pro) reported in two siblings with intellectual disability, psychomotor retardation, blindness, epilepsy, movement disorder and cerebellar atrophy. Some functional data.; Changed publications: 10762541, 9628818, 27003325, 32176688; Changed phenotypes: Episodic ataxia, type 5, MIM#613855, Intellectual disability, Epilepsy, Movement disorder
Mendeliome v0.2588 KLC2 Zornitza Stark gene: KLC2 was added
gene: KLC2 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: KLC2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: KLC2 were set to 26385635
Phenotypes for gene: KLC2 were set to Spastic paraplegia, optic atrophy, and neuropathy MIM#609541
Review for gene: KLC2 was set to GREEN
Added comment: In 73 Brazilian patients and 2 sibs of Egyptian descent with SPOAN, a homozygous 216-bp deletion in the noncoding upstream region of the KLC2 gene was identified. Only reported cause of condition is the upstream large deletion, which is not detected by whole-exome sequencing.
Sources: Expert Review
Mendeliome v0.2583 ALPK1 Zornitza Stark gene: ALPK1 was added
gene: ALPK1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ALPK1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ALPK1 were set to 31053777
Phenotypes for gene: ALPK1 were set to Periodic fever, aphthous stomatitis, pharyngitis and adenitis (PFAPA) syndrome
Review for gene: ALPK1 was set to AMBER
Added comment: Three unrelated families reported. One of the variants segregated in four affected individuals in one family and another was found to be de novo. The third variant however was not segregated, and is also present in 18 individuals in gnomad. Hence the evidence for variant pathogenicity in this third case is not compelling.
Sources: Literature
Mendeliome v0.2574 IQCE Zornitza Stark gene: IQCE was added
gene: IQCE was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: IQCE was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: IQCE were set to 31549751; 28488682
Phenotypes for gene: IQCE were set to Postaxial polydactyly
Review for gene: IQCE was set to GREEN
Added comment: Four families reported with bi-allelic variants in this gene. The c.895_904del (p.Val301Serfs*8) was found in three of the families without sharing a common haplotype, suggesting a recurrent mechanism. RNA expression analysis on patients’ fibroblasts showed that the dysfunction of IQCE leads to the dysregulation of genes associated with the hedgehog‐signaling pathway, and zebrafish experiments demonstrated a full spectrum of phenotypes linked to defective cilia: Body curvature, kidney cysts, left–right asymmetry, misdirected cilia in the pronephric duct, and retinal defects.
Sources: Literature
Mendeliome v0.2572 RPSA Zornitza Stark changed review comment from: Four families reported with mono allelic variants and idiopathic intestinal varies.; to: Four families reported with mono allelic variants and idiopathic intestinal varies, often in combination with asplenia.
Mendeliome v0.2566 CRAT Zornitza Stark gene: CRAT was added
gene: CRAT was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CRAT was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CRAT were set to 29395073; 31448845
Phenotypes for gene: CRAT were set to Neurodegeneration with brain iron accumulation 8, MIM# 617917; Leigh syndrome
Review for gene: CRAT was set to AMBER
Added comment: Two unrelated families reported with bi-allelic variants, one with NBIA and one with Leigh syndrome phenotype.
Sources: Literature
Mendeliome v0.2561 B4GAT1 Zornitza Stark changed review comment from: Two families reported.; to: Two families reported and two animal models.
Mendeliome v0.2553 TRPV1 Zornitza Stark gene: TRPV1 was added
gene: TRPV1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TRPV1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: TRPV1 were set to 29930394
Phenotypes for gene: TRPV1 were set to Susceptibility to malignant hyperthermia
Review for gene: TRPV1 was set to RED
Added comment: Two individuals reported with rare/novel missense variants in this gene, some functional data.
Sources: Literature
Mendeliome v0.2551 ZP2 Zornitza Stark gene: ZP2 was added
gene: ZP2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ZP2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ZP2 were set to 30810869; 29895852
Phenotypes for gene: ZP2 were set to Female infertility
Review for gene: ZP2 was set to GREEN
Added comment: Three unrelated individuals reported with bi-allelic variants in this gene and thin zona pellucida.
Sources: Literature
Mendeliome v0.2550 RSRC1 Zornitza Stark edited their review of gene: RSRC1: Added comment: 17 additional individuals reported.; Changed rating: GREEN; Changed publications: 28640246, 29522154, 32227164; Changed phenotypes: Intellectual developmental disorder, autosomal recessive 70, MIM# 618402
Mendeliome v0.2549 GAD1 Zornitza Stark changed review comment from: Single family reported with bi-allelic variants. Association studies linking with neuropsychiatric issues.; to: Single family reported with bi-allelic variants and CP phenotype. Association studies linking with neuropsychiatric issues.
Mendeliome v0.2549 GAD1 Zornitza Stark edited their review of gene: GAD1: Added comment: 2020: 11 individuals from 6 consanguineous families reported with bi-allelic LOF variant and a developmental/epileptic encephalopathy. Seizure onset occurred in the first 2 months of life in all. All 10 individuals, from whom early disease history was available, presented with seizure onset in the first month of life, mainly consisting of epileptic spasms or myoclonic seizures. Early EEG showed suppression-burst or pattern of burst attenuation or hypsarrhythmia if only recorded in the post-neonatal period. Eight individuals had joint contractures and/or pes equinovarus. Seven presented a cleft palate and two also had an omphalocele, reproducing the phenotype of the knockout Gad1−/− mouse model. Four individuals died before 4 years of age.; Changed rating: GREEN; Changed publications: 15571623, 32282878; Changed phenotypes: Cerebral palsy, spastic quadriplegic, 1, MIM#603513, Developmental and epileptic encephalopathy
Mendeliome v0.2548 GALNT2 Zornitza Stark gene: GALNT2 was added
gene: GALNT2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GALNT2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GALNT2 were set to 32293671
Phenotypes for gene: GALNT2 were set to Congenital disorder of glycosylation
Review for gene: GALNT2 was set to GREEN
Added comment: Seven individuals from four families reported with bi-allelic LOF variants and global developmental delay, intellectual disability with language deficit, autistic features, behavioural abnormalities, epilepsy, chronic insomnia, white matter changes on brain MRI, dysmorphic features, decreased stature, and decreased high density lipoprotein cholesterol levels. Rodent (mouse and rat) models of GALNT2-CDG recapitulated much of the human phenotype, including poor growth and neurodevelopmental abnormalities.
Sources: Literature
Mendeliome v0.2546 C7orf43 Zornitza Stark gene: C7orf43 was added
gene: C7orf43 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: C7orf43 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: C7orf43 were set to 30715179
Phenotypes for gene: C7orf43 were set to Microcephaly 25, primary, autosomal recessive, MIM# 618351
Review for gene: C7orf43 was set to AMBER
Added comment: Single family reported: three affected siblings with homozygous truncating variant. Supportive zebrafish model.
Sources: Literature
Mendeliome v0.2493 C1orf194 Zornitza Stark Added comment: Comment when marking as ready: Two unrelated families with missense variants, one with intermediate CMT, the other with demyelinating CMT. Different phenotypic manifestations may relate to different mechanism, but this remains to be fully elucidated. Supportive mouse model.
Mendeliome v0.2470 ABCC1 Zornitza Stark gene: ABCC1 was added
gene: ABCC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ABCC1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ABCC1 were set to 31273342
Phenotypes for gene: ABCC1 were set to Nonsyndromic hearing loss
Review for gene: ABCC1 was set to AMBER
Added comment: Total of 3 variants reported in 3 families, including 1 which segregates in a large family (10 affected) PMID: 31273342; Li 2019: Reported 3 different het missense in 3 families with postlingual ADNSHL. 1 missense segregated in a large Chinese family. This variant is present in gnomAD (10 hets), but onset noted to be in 2nd or 3rd decade of life. Functional studies performed. Other 2 variants reported absent in gnomAD. Amber rating in light of gnomad frequency of one of the reported variants.
Sources: Literature
Mendeliome v0.2440 MCAT Chern Lim gene: MCAT was added
gene: MCAT was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MCAT was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MCAT were set to 31915829
Phenotypes for gene: MCAT were set to progressive autosomal recessive optic neuropathy
Review for gene: MCAT was set to RED
Added comment: One family reported - a consanguineous family, two homozygous missense variants in both affected siblings. Functional studies showed both missense together have synergic impact on MCAT protein misfolding; p.(L81R) had more impact on MCAT protein expression reduction than did the p.(R212W); some study in conditional knockout mice. (PMID:31915829)
Sources: Literature
Mendeliome v0.2440 PKDCC Paul De Fazio changed review comment from: 2 ("apparently") unrelated individuals with homozygous LoF (1x nonsense, 1x canonical splice) variants reported. Their phenotype is similar to knockout mice.
Sources: Literature; to: 2 apparently unrelated individuals with homozygous LoF (1x nonsense, 1x canonical splice) variants reported. Their phenotype is similar to knockout mice.
Sources: Literature
Mendeliome v0.2440 REC114 Michelle Torres gene: REC114 was added
gene: REC114 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: REC114 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: REC114 were set to 30388401; 31704776
Phenotypes for gene: REC114 were set to Female infertility
Review for gene: REC114 was set to GREEN
Added comment: Three variants reported are either within or flanking exon 4.
- One hom patient (splice) had a miscarriage, 2 spontaneous complete hydatidiform moles, and 1 complete hydatidiform mole following intrauterine sperm injection (PMID: 30388401)
- Two hom unrelated patients from consanguineous families with abnormal pronuclear formation during fertilisation and subsequent early embrionic arrest resulting in female infertility. Both variants (1 missense and 1 splice) were shown to result in LoF (PMID: 31704776)
Sources: Literature
Mendeliome v0.2436 WARS Naomi Baker gene: WARS was added
gene: WARS was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: WARS was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: WARS were set to PMID: 28369220; 31321409; 31069783.
Phenotypes for gene: WARS were set to Neuronopathy, distal hereditary motor, type IX (OMIM:617721); juvenile to adult onset (15-23 years); distal wasting; distal weakness; length-dependent motor axonal degeneration
Review for gene: WARS was set to GREEN
Added comment: 14 patients from five families were reported to have WARS-related neuropathy across three publications. Expression studies of mutant demonstrated decreased protein when compared to wild-type.
Sources: Literature
Mendeliome v0.2434 CYLD Zornitza Stark Phenotypes for gene: CYLD were changed from to Brooke-Spiegler syndrome, 605041; Cylindromatosis, familial, 132700; Trichoepithelioma, multiple familial, 1, 601606; Frontotemporal dementia and amyotrophic lateral sclerosis
Mendeliome v0.2421 PLOD3 Alison Yeung Added comment: Comment when marking as ready: >3 unrelated families reported
Mendeliome v0.2416 ADAMTS19 Alison Yeung Added comment: Comment on list classification: Two different homozygous variants in two consanguineous families. Animal model demonstrates cardiac phenotype
Await further reported families
Mendeliome v0.2411 CAP2 Alison Yeung Added comment: Comment on list classification: Currently only one consanguineous family reported.
Knockout mouse model shows cardiomyopathy but not other clinical features reported in this family
Mendeliome v0.2401 CPSF1 Kristin Rigbye changed review comment from: 6 unrelated probands reported (3 nonsense, 1 frameshift, 1 splice, 1 missense) with variants all assumed to result in a loss of function. Variants were shown to be inherited from affected parents in 2 families. Gene-disease association was supported by knockdown of cpsf1 in zebrafish which caused abnormal ocular morphogenesis (30689892).
Sources: Literature; to: 6 unrelated probands reported (3 nonsense, 1 frameshift, 1 splice, 1 missense) with variants all assumed to result in a loss of function. Variants were shown to be inherited from affected parents in 2 families. Gene-disease association was supported by knockdown of cpsf1 in zebrafish which caused abnormal ocular morphogenesis (PMID: 30689892).
Sources: Literature
Mendeliome v0.2401 CPSF1 Kristin Rigbye gene: CPSF1 was added
gene: CPSF1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CPSF1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CPSF1 were set to 30689892
Phenotypes for gene: CPSF1 were set to Myopia 27, 618827; high myopia; early-onset high myopiaHigh myopia
Review for gene: CPSF1 was set to GREEN
Added comment: 6 unrelated probands reported (3 nonsense, 1 frameshift, 1 splice, 1 missense) with variants all assumed to result in a loss of function. Variants were shown to be inherited from affected parents in 2 families. Gene-disease association was supported by knockdown of cpsf1 in zebrafish which caused abnormal ocular morphogenesis (30689892).
Sources: Literature
Mendeliome v0.2392 GNAI2 Elena Savva gene: GNAI2 was added
gene: GNAI2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GNAI2 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: GNAI2 were set to PMID: 31036916
Phenotypes for gene: GNAI2 were set to Pituitary adenoma, ACTH-secreting, somatic; Ventricular tachycardia, idiopathic 192605; Syndromic developmental disorder
Review for gene: GNAI2 was set to AMBER
Added comment: Papers associating this gene to tachycardia are very old (pre 2000, OMIM).

PMID: 31036916 - a single de novo patient with syndromic developmental disorder

Summary: AMBER - one report, may be a coincidental de novo finding
Sources: Literature
Mendeliome v0.2386 FEM1B Elena Savva gene: FEM1B was added
gene: FEM1B was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FEM1B was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: FEM1B were set to PMID: 31036916
Phenotypes for gene: FEM1B were set to Syndromic global developmental delay
Review for gene: FEM1B was set to AMBER
Added comment: No OMIM phenotype

PMID: 31036916 - a single de novo patient reported in a neurodevelopmental disorder cohort. Authors note another de novo case with the exact same variant (p.Arg126Gln) from the DDD study, and a 3rd patient from GeneMatcher with the same de novo missense again. Decipher shows this variant to be in a highly constrained region of the protein.

Have selected AMBER for now - not sure if GeneMatcher findings can be used as a 3rd case
Sources: Literature
Mendeliome v0.2384 RXFP2 Alison Yeung Added comment: Comment on list classification: Only single reported family with animal model reported. Both reviews to date are based on same publication. No new publications/reported cases since this one.
Mendeliome v0.2383 SMCHD1 Teresa Zhao changed review comment from: Seven probands with FSHD reported to have LP/P variants, which all predicted to disrupt the structure and conformation of SMCHD1.; to: Seven probands with FSHD reported to have LP/P variants, which all predicted to disrupt the structure and conformation of SMCHD1.

No particular geno-pheno correlation, but location of missense variants within the ATPase domain of MSCHD1 may contribute to the differences in phenotypic outcome (PMID: 31243061)
Mendeliome v0.2378 SEC31A Hazel Phillimore gene: SEC31A was added
gene: SEC31A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SEC31A was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SEC31A were set to PMID: 30464055
Phenotypes for gene: SEC31A were set to congenital neurodevelopmental syndrome; spastic paraplegia; multiple contractures; profound developmental delay; epilepsy; failure to thrive
Review for gene: SEC31A was set to AMBER
Added comment: Frameshift. c.2776_2777, TA duplication, causing predicted p.A927fs*61 truncation and predicted NMD in 2 affected siblings in consanguineous Bedouin family with severe congenital neurological syndrome with spastic paraplegia, multiple contractures, profound developmental delay and convulsions. Failure to thrive. Lethal by age 4 years. Also had hearing defect, bilateral congenital cataract, horizontal nystagmus, with flat retina and optic atrophy. Supporting functional assays from knockout drosophila.
Sources: Literature
Mendeliome v0.2378 SLC44A1 Sebastian Lunke gene: SLC44A1 was added
gene: SLC44A1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SLC44A1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLC44A1 were set to 31855247
Phenotypes for gene: SLC44A1 were set to progressive ataxia; tremor; cognitive decline; dysphagia; optic atrophy; dysarthria
Review for gene: SLC44A1 was set to GREEN
Added comment: Four affected individuals from three families with homozygous frameshift variants. Functional evidence points to impaired choline transporter function yet unchanged membrane phosphatidylcholine content. Choline treatments may be beneficial.
Sources: Literature
Mendeliome v0.2376 PKDCC Alison Yeung Added comment: Comment on list classification: Two unrelated consanguineous families reported with different homozygous variants
Pre-existing mouse model has similar phenotype
Needs more functional evidence or further reported families
Mendeliome v0.2375 SPEF2 Chern Lim gene: SPEF2 was added
gene: SPEF2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SPEF2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SPEF2 were set to 31151990; 31278745; 31048344
Phenotypes for gene: SPEF2 were set to Spermatogenic failure 43, MIM#618751
Review for gene: SPEF2 was set to GREEN
gene: SPEF2 was marked as current diagnostic
Added comment: More than 3 unrelated families reported, all PTVs or splice variant. Functional studies showed SPEF2 protein levels were reduced in patients’ spermatozoa. (PMIDs: 31151990, 31278745, 31048344).
Sources: Literature
Mendeliome v0.2372 CYLD Kristin Rigbye reviewed gene: CYLD: Rating: GREEN; Mode of pathogenicity: None; Publications: 10835629, 16307661, 12950348, 19807742; Phenotypes: Brooke-Spiegler syndrome, 605041, Cylindromatosis, familial, 132700, Trichoepithelioma, multiple familial, 1, 601606, Frontotemporal dementia and amyotrophic lateral sclerosis; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.2365 FUS Elena Savva gene: FUS was added
gene: FUS was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FUS was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: FUS were set to PMID: 32281455; 20668259; 20385912
Phenotypes for gene: FUS were set to Amyotrophic lateral sclerosis 6, with or without frontotemporal dementia 608030; Essential tremor, hereditary, 4 614782
Mode of pathogenicity for gene: FUS was set to Other
Review for gene: FUS was set to GREEN
Added comment: PMID: 32281455 - Reports a case of Pediatric Amyotrophic Lateral Sclerosis. Reviews and shows multiple other reports of ALS casued by FUS

PMID: 20668259 - additional reports of ALS

PMID: 20385912 - postulated that disruption of this region may disrupt subcellular distribution of FUS, in turn affecting transcription and RNA processing and conferring a toxic gain of function.
Sources: Literature
Mendeliome v0.2365 C9orf72 Elena Savva gene: C9orf72 was added
gene: C9orf72 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: C9orf72 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: C9orf72 were set to PMID: 30120348; 23284068
Phenotypes for gene: C9orf72 were set to Frontotemporal dementia and/or amyotrophic lateral sclerosis 1 105550
Review for gene: C9orf72 was set to AMBER
Added comment: Possibly RED

Caused by expansion of GGGGCC repeats, dont know if these qualify for mendeliome
Sources: Literature
Mendeliome v0.2365 TNFRSF21 Alison Yeung Added comment: Comment on list classification: Report of single family
Limited functional evidence: tissue expression studies
Mendeliome v0.2361 MYCN Ain Roesley changed review comment from: PMID: 30573562; case report of an individual with a missense in MYCN with functional studies done in neuronal progenitor/stem cells demonstrating gain-of-function; to: PMID: 30573562; case report of an individual with a missense in MYCN with functional studies done in neuronal progenitor/stem cells demonstrating gain-of-function
Mendeliome v0.2361 PKDCC Paul De Fazio gene: PKDCC was added
gene: PKDCC was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PKDCC was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PKDCC were set to PMID:30478137; 19097194
Phenotypes for gene: PKDCC were set to Dysmorphism; shortening of extremities
Review for gene: PKDCC was set to AMBER
gene: PKDCC was marked as current diagnostic
Added comment: 2 ("apparently") unrelated individuals with homozygous LoF (1x nonsense, 1x canonical splice) variants reported. Their phenotype is similar to knockout mice.
Sources: Literature
Mendeliome v0.2361 MYCN Ain Roesley edited their review of gene: MYCN: Added comment: PMID: 30573562; case report of an individual with a missense in MYCN with functional studies done in neuronal progenitor/stem cells demonstrating gain-of-function; Changed rating: RED; Changed publications: PMID: 30573562; Changed phenotypes: megalencephaly, ventriculomegaly, hypoplastic corpus callosum, intellectual disability, polydactyly, neuroblastoma
Mendeliome v0.2361 USP45 Kristin Rigbye gene: USP45 was added
gene: USP45 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: USP45 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: USP45 were set to 30573563
Phenotypes for gene: USP45 were set to Leber congenital amaurosis; retinal dystrophy
Review for gene: USP45 was set to GREEN
Added comment: 2 unrelated Chinese families reported with rare homozygous variants (one missense, one nonsense) and Leber congenital amaurosis. Animal knockout functional studies supported gene-disease association.

PMID: 30573563 "By analysing WES data based on allele frequencies of in-house controls, population allele frequencies and in silico prediction tools, two rare homozygous mutations in USP45 were identified in two unrelated families. Immunohistochemistry of USP45 in the human and zebrafish retinal sections revealed enriched expression in the inner segments of photoreceptors. The knockdown of usp45 transcript in zebrafish led to abnormal retinal development with effects on photoreceptors, which could be successfully rescued by wild-type usp45 mRNA. Moreover, targeted knockout of Usp45 in mice caused abnormal electroretinography responses, similar to that seen in patients with LCA."
Sources: Literature
Mendeliome v0.2360 BAZ2B Zornitza Stark gene: BAZ2B was added
gene: BAZ2B was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: BAZ2B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: BAZ2B were set to 31999386; 28135719; 25363768
Phenotypes for gene: BAZ2B were set to Intellectual disability; autism
Review for gene: BAZ2B was set to GREEN
Added comment: Postulated as a candidate gene for ID/ASD by large-scale studies. Case series reports two individuals with small CNVs and and six with SNVs, mostly LoF type variants. Although the gene is generally intolerant of LoF, some LoF variants present in gnomad ?incomplete penetrance. Additional reported features were inconsistent
Sources: Literature
Mendeliome v0.2352 AGBL5 Zornitza Stark gene: AGBL5 was added
gene: AGBL5 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: AGBL5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: AGBL5 were set to 26720455; 26355662; 30925032
Phenotypes for gene: AGBL5 were set to Retinitis pigmentosa 75, MIM# 617023
Review for gene: AGBL5 was set to GREEN
Added comment: At least three unrelated families reported.
Sources: Expert list
Mendeliome v0.2350 CPT1C Bryony Thompson gene: CPT1C was added
gene: CPT1C was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: CPT1C was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CPT1C were set to 25751282; 23973755
Phenotypes for gene: CPT1C were set to Spastic paraplegia 73, autosomal dominant MIM#616282
Review for gene: CPT1C was set to GREEN
Added comment: Two unrelated families dominant HSP and a supportive mouse model.
Sources: Expert list
Mendeliome v0.2348 ATP2B4 Bryony Thompson gene: ATP2B4 was added
gene: ATP2B4 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: ATP2B4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ATP2B4 were set to 25119969; 25798335; 29691679
Phenotypes for gene: ATP2B4 were set to Hereditary spastic paraplegia
Review for gene: ATP2B4 was set to AMBER
Added comment: One Chinese family segregating a missense variant with HSP and one HSP case with a assumed de novo nonsense variant. Supporting in vitro functional assays for the missense variant.
Sources: Expert list
Mendeliome v0.2304 XRCC1 Bryony Thompson gene: XRCC1 was added
gene: XRCC1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: XRCC1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: XRCC1 were set to 28002403; 29472272
Phenotypes for gene: XRCC1 were set to Spinocerebellar ataxia, autosomal recessive 26 MIM#617633
Review for gene: XRCC1 was set to GREEN
Added comment: Three South Asian cases (one with early adult onset and the other two with onset in childhood) reported with slowly progressive cerebellar ataxia accompanied by sensorimotor neuropathy. All with the recurrent splice variant (c.1293G>C, 2 homozygotes and a compound heterozygote). Mice with conditional deletion of the Xrcc1 gene in the brain showed cerebellar ataxia.
Sources: Expert list
Mendeliome v0.2300 SLC9A1 Zornitza Stark gene: SLC9A1 was added
gene: SLC9A1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: SLC9A1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLC9A1 were set to 25205112; 30018422; 25760855
Phenotypes for gene: SLC9A1 were set to Lichtenstein-Knorr syndrome, MIM# 616291
Review for gene: SLC9A1 was set to AMBER
Added comment: Two families with bi-allelic variants in this gene reported and combination of deafness and ataxia.
Sources: Expert list
Mendeliome v0.2295 IL18BP Zornitza Stark gene: IL18BP was added
gene: IL18BP was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: IL18BP was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: IL18BP were set to 31213488
Phenotypes for gene: IL18BP were set to {?Hepatitis, fulminant viral, susceptibility to} 618549
Review for gene: IL18BP was set to RED
Added comment: Single individual reported with homozygous 40bp deletion in this gene and fulminant Hep A hepatitis.
Sources: Expert list
Mendeliome v0.2289 ACOX2 Zornitza Stark gene: ACOX2 was added
gene: ACOX2 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: ACOX2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ACOX2 were set to 27647924; 27884763
Phenotypes for gene: ACOX2 were set to Bile acid synthesis defect, congenital, 6, 617308
Review for gene: ACOX2 was set to AMBER
Added comment: Two unrelated families reported.
Sources: Expert Review
Mendeliome v0.2287 LARS Zornitza Stark gene: LARS was added
gene: LARS was added to Mendeliome. Sources: NHS GMS
Mode of inheritance for gene: LARS was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: LARS were set to 28774368; 30349989; 22607940
Phenotypes for gene: LARS were set to Infantile liver failure syndrome 1, MIM# 615438
Review for gene: LARS was set to GREEN
gene: LARS was marked as current diagnostic
Added comment: Six unrelated families reported in the literature, reviewed in PMID: 30349989.
Sources: NHS GMS
Mendeliome v0.2280 KCNJ11 Elena Savva edited their review of gene: KCNJ11: Added comment: Congenital hyperinsulinism (HI) variants are generally reported in heterozygous patients where they also carry a somatic 2nd hit, or have isodisomy of the paternal allele (focal HI), or in bilallelic patients (diffuse HI). This condition can be dominant (but rarely), where patients with these missense are diazoxide-responsive. Patients with recessively inherited variants are diazoxide-unresponsive (OMIM, PMID:11395395, PMID: 23275527, PMID: 23345197).

Genotype-phenotype correlation:
Permanent neonatal diabetes – GOF (OMIM)
Permanent neonatal diabetes + other features – GOF (OMIM)
Congenital hyperinsulinism – LOF (PMID:18250167).

PTCs - LOF
Missense - Loss and gain of function
LOF – cause reduce channel expression, channel activity and increase current decay (PMID:18250167)
GOF - impair ATP-based sensitivity, more open state channel (OMIM)

Mutations generally occur on the paternal allele (PMID: 23345197).; Changed publications: PMID:18250167, 11395395, 23275527, 23345197
Mendeliome v0.2279 SLC18A2 Zornitza Stark gene: SLC18A2 was added
gene: SLC18A2 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: SLC18A2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLC18A2 were set to 23363473; 31240161; 26497564
Phenotypes for gene: SLC18A2 were set to Parkinsonism-dystonia, infantile, 2, MIM# 618049
Review for gene: SLC18A2 was set to GREEN
Added comment: At least three unrelated families reported, potential treatment implications
Sources: Expert Review
Mendeliome v0.2259 MARS2 Zornitza Stark changed review comment from: 1 family with 2 sibs with combined oxidative phosphorylation deficiency-25 (with ID) with compound heterozygous mutations in the MARS2 gene. Patient fibroblasts showed decreased activities of mitochondrial complexes I and IV, consistent with a mitochondrial translation defect. Immunoblot analysis showed reduced MARS2 protein levels as well as reduced levels of selected subunits of complexes I and IV.; to: 1 family with 2 sibs with combined oxidative phosphorylation deficiency-25 (with ID) with compound heterozygous mutations in the MARS2 gene. Patient fibroblasts showed decreased activities of mitochondrial complexes I and IV, consistent with a mitochondrial translation defect. Immunoblot analysis showed reduced MARS2 protein levels as well as reduced levels of selected subunits of complexes I and IV. Spastic ataxia association: note complex chromosomal rearrangements rather than SNVs reported in group of 54 French Canadians.
Mendeliome v0.2246 PAX1 Zornitza Stark changed review comment from: Note recent report of 6 individuals from three unrelated families with prominent immunological phenotype.; to: Note additional recent report of 6 individuals from three unrelated families with prominent immunological phenotype.
Mendeliome v0.2225 SHANK2 Zornitza Stark Added comment: Comment when marking as ready: Reports of CNVs, LoF variants, and missense variants in this gene, generally ascertained in autism cohorts. Some de novo and others inherited from parents with a range of neuropsychiatric phenotypes.
Mendeliome v0.2204 PPCS Zornitza Stark changed review comment from: Five individuals from two unrelated families reported with missense variants. Functional studies in yeast to demonstrate impact of the variants on protein but not aimed at establishing gene-disease causation.; to: Five individuals from two unrelated families reported with missense variants. Functional studies in yeast to demonstrate impact of the variants on protein and cardiac dysfunction observed in Drosophila model.
Mendeliome v0.2204 PET117 Zornitza Stark gene: PET117 was added
gene: PET117 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PET117 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PET117 were set to 28386624
Phenotypes for gene: PET117 were set to Developmental delay; Regression; Complex IV deficiency
Review for gene: PET117 was set to RED
Added comment: Two siblings reported, some functional data. PET117 postulated to be a Complex IV assembly factor.
Sources: Expert list
Mendeliome v0.2200 NUP188 Zornitza Stark edited their review of gene: NUP188: Added comment: Additional 6 unrelated individuals with bi-allelic LoF variants reported, promoted to Green.; Changed rating: GREEN; Changed publications: 32021605, 28726809, 32275884; Changed phenotypes: microcephaly, ID, cataract, structural brain abnormalities, hypoventilation
Mendeliome v0.2179 NME3 Zornitza Stark gene: NME3 was added
gene: NME3 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: NME3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NME3 were set to 30587587
Phenotypes for gene: NME3 were set to Hypotonia; Neurodegeneration; Abnormal mitochondrial dynamics
Review for gene: NME3 was set to RED
Added comment: Single individual reported. NME3 is a mitochondrial outer-membrane protein capable of interacting with MFN1/2, and its depletion causes dysfunction in mitochondrial dynamics
Sources: Expert list
Mendeliome v0.2178 MRPS28 Zornitza Stark gene: MRPS28 was added
gene: MRPS28 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MRPS28 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MRPS28 were set to 30566640
Phenotypes for gene: MRPS28 were set to Intrauterine growth retardation; developmental delay; dysmorphism
Review for gene: MRPS28 was set to RED
Added comment: Single individual reported.
Sources: Expert list
Mendeliome v0.2177 MRPS25 Zornitza Stark gene: MRPS25 was added
gene: MRPS25 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MRPS25 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MRPS25 were set to 31039582
Phenotypes for gene: MRPS25 were set to Dyskinetic cerebral palsy; Mitochondrial myopathy; Partial agenesis of the corpus callosum
Review for gene: MRPS25 was set to RED
Added comment: Single individual reported.
Sources: Expert list
Mendeliome v0.2173 MRPS23 Zornitza Stark edited their review of gene: MRPS23: Added comment: Four families reported.; Changed rating: GREEN; Changed publications: 26741492, 17873122, 25663021, 28752220; Changed phenotypes: Hepatic disease, Combined respiratory chain complex deficiencies, Cardiomyopathy, Tubulopathy, Lactic acidosis, Structural brain abnormalities
Mendeliome v0.2173 MIEF2 Zornitza Stark gene: MIEF2 was added
gene: MIEF2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MIEF2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MIEF2 were set to 29361167
Phenotypes for gene: MIEF2 were set to Progressive muscle weakness; Exercise intolerance; Ragged red and COX negative fibres; Complex I and IV deficiency
Review for gene: MIEF2 was set to RED
Added comment: Single individual reported.
Sources: Expert list
Mendeliome v0.2170 COX5A Zornitza Stark gene: COX5A was added
gene: COX5A was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: COX5A was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: COX5A were set to 2824752
Phenotypes for gene: COX5A were set to pulmonary arterial hypertension; lactic acidemia; failure to thrive; isolated complex IV deficiency
Review for gene: COX5A was set to RED
Added comment: Single family reported.
Sources: Expert list
Mendeliome v0.2063 CFB Zornitza Stark changed review comment from: Single individual reported, supportive immunophenotyping data.; to: Single individual reported with bi-allelic variants and complement deficiency, supportive immunophenotyping data. Mono-allelic variants linked to susceptibility to aHUS.
Mendeliome v0.2050 CD247 Zornitza Stark changed review comment from: Also known as CD3Z. Single individual reported with homozygous germline nonsense variant, which was present in some T cells, but others had the nonsense variant in combination with one of three different missense somatic variants.; to: Also known as CD3Z. Note one individual reported with homozygous germline nonsense variant, which was present in some T cells, but others had the nonsense variant in combination with one of three different missense somatic variants.
Mendeliome v0.2050 CD247 Zornitza Stark edited their review of gene: CD247: Added comment: Two reports in the literature, note additional two reports in ClinVar; functional data.; Changed rating: GREEN; Changed publications: 16672702, 17170122
Mendeliome v0.2044 MIR140 Zornitza Stark gene: MIR140 was added
gene: MIR140 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: MIR140 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MIR140 were set to 30804514; 31633310
Phenotypes for gene: MIR140 were set to Spondyloepiphyseal dysplasia, Nishimura type, MIM# 618618
Review for gene: MIR140 was set to GREEN
Added comment: Single clinical paper (30804514) reports variant in affected mother and child (de novo in mother) and in a separate unrelated female (de novo) with spondylo-epiphyseal dysplasia. Mouse model (21576357) deletion of gene causes impaired longitudinal bone growth. Separate mouse model studies by same authors as clinical paper above (30804514) showed phenotype of mice with same mutation in this gene consistent with the skeletal dysplasia features of patients with the n.24A-G mutation, suggestive of neomorphic effects (mutation produces both loss-of-function and gain-of-function effects.)
Sources: Expert Review
Mendeliome v0.2013 IL6ST Zornitza Stark changed review comment from: Also known as gp130. Two families with bi-allelic missense variants and immunological phenotype described initially. More recently, five individuals from three families reported with a more complex Stuve-Wiedemann-like phenotype reported, including skeletal dysplasia and neonatal lung dysfunction with additional features such as congenital thrombocytopenia, eczematoid dermatitis, renal abnormalities, and defective acute-phase response. These three families had bi-allelic LoF variants (nonsense and canonical splice site). Several mouse models support gene-disease association.
Sources: Expert list; to: Also known as gp130. Two families with bi-allelic missense variants and immunological phenotype described initially. More recently, five individuals from three families reported with a more complex Stuve-Wiedemann-like phenotype reported, including skeletal dysplasia and neonatal lung dysfunction with additional features such as congenital thrombocytopenia, eczematoid dermatitis, renal abnormalities, and defective acute-phase response. These three families had bi-allelic LoF variants (nonsense and canonical splice site). Several mouse models support gene-disease association.
2020: 12 individuals from 8 unrelated families with seven different mono-allelic truncating variants, dominant negative effect proposed.
Sources: Expert list
Mendeliome v0.2005 MAD2L2 Zornitza Stark gene: MAD2L2 was added
gene: MAD2L2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MAD2L2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MAD2L2 were set to 27500492
Phenotypes for gene: MAD2L2 were set to Fanconi anemia, complementation group V, MIM# 617243
Review for gene: MAD2L2 was set to RED
Added comment: Single family reported.
Sources: Expert list
Mendeliome v0.1999 HAVCR2 Zornitza Stark gene: HAVCR2 was added
gene: HAVCR2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: HAVCR2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: HAVCR2 were set to 30374066; 30792187
Phenotypes for gene: HAVCR2 were set to T-cell lymphoma, subcutaneous panniculitis-like, MIM# 618398
Review for gene: HAVCR2 was set to GREEN
Added comment: Over 20 unrelated individuals reported, note germline confirmation in only a few. Some variants are recurrent: c.245A>G (p.Tyr82Cys) and c.291A>G (p.Ile97Met).
Sources: Expert list
Mendeliome v0.1997 TRIM22 Zornitza Stark gene: TRIM22 was added
gene: TRIM22 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: TRIM22 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TRIM22 were set to 26836588
Phenotypes for gene: TRIM22 were set to Inflammatory bowel disease
Review for gene: TRIM22 was set to GREEN
Added comment: Three unrelated families reported with bi-allelic variants in this gene, and very early onset IBD, some functional data.
Sources: Expert list
Mendeliome v0.1994 PSMG2 Zornitza Stark gene: PSMG2 was added
gene: PSMG2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PSMG2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PSMG2 were set to 30664889
Phenotypes for gene: PSMG2 were set to CANDLE syndrome; Chronic atypical neutrophilic dermatitis with lipodystrophy
Review for gene: PSMG2 was set to RED
Added comment: Single individual reported.
Sources: Expert list
Mendeliome v0.1987 TIRAP Zornitza Stark changed review comment from: No evidence currently for Mendelian disease association. Some evidence for polymorphisms in this gene influencing susceptibility/protection from infectious disease.; to: No evidence currently for Mendelian disease association. Some evidence for polymorphisms in this gene influencing susceptibility/protection from infectious disease. One family with 8 individuals and bi-allelic variants and susceptibility to staphylococcal disease reported.
Mendeliome v0.1974 IFNAR1 Zornitza Stark gene: IFNAR1 was added
gene: IFNAR1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: IFNAR1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: IFNAR1 were set to 31270247
Phenotypes for gene: IFNAR1 were set to Severe disease caused by Yellow Fever vaccine and Measles vaccine
Review for gene: IFNAR1 was set to AMBER
Added comment: Two unrelated individuals reported with bi-allelic LoF variants, some functional data.
Sources: Expert list
Mendeliome v0.1972 IRF9 Zornitza Stark gene: IRF9 was added
gene: IRF9 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: IRF9 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: IRF9 were set to 30826365; 30143481
Phenotypes for gene: IRF9 were set to Immunodeficiency 65, susceptibility to viral infections 618648
Review for gene: IRF9 was set to AMBER
Added comment: Two families reported.
Sources: Expert list
Mendeliome v0.1970 CIB1 Zornitza Stark gene: CIB1 was added
gene: CIB1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: CIB1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CIB1 were set to 30068544
Phenotypes for gene: CIB1 were set to Epidermodysplasia verruciformis 3 618267; HPV infections and cancer of the skin
Review for gene: CIB1 was set to GREEN
Added comment: 24 individuals from 6 families reported.
Sources: Expert list
Mendeliome v0.1965 JAK1 Zornitza Stark changed review comment from: Single family reported (mother and two children) with GoF variant.
Sources: Expert list; to: Single family reported (mother and two children) with GoF variant and immune dysregulation phenotype. Another individual reported with bi-allelic LoF and susceptibility to mycobacterial infections. Mouse model with NK defect.
Sources: Expert list
Mendeliome v0.1959 IL12RB2 Zornitza Stark gene: IL12RB2 was added
gene: IL12RB2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: IL12RB2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: IL12RB2 were set to 30578351
Phenotypes for gene: IL12RB2 were set to Susceptibility to mycobacteria and Salmonella
Review for gene: IL12RB2 was set to RED
Added comment: Single individual reported, some functional data.
Sources: Expert list
Mendeliome v0.1957 C17orf62 Zornitza Stark gene: C17orf62 was added
gene: C17orf62 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: C17orf62 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: C17orf62 were set to 30361506; 30312704; 28351984
Phenotypes for gene: C17orf62 were set to Chronic granulomatous disease
Review for gene: C17orf62 was set to GREEN
Added comment: Seven Icelandic families reported with same homozygous variant, p.Tyr2Ter and an additional family from different ethnic background with different homozygous splice site variant. Functional data, including mouse model. Gene also known as EROS and CYBC1 (HGNC approved name)
Sources: Expert list
Mendeliome v0.1955 MKL1 Zornitza Stark gene: MKL1 was added
gene: MKL1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MKL1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MKL1 were set to 32128589; 26224645
Phenotypes for gene: MKL1 were set to Neutropaenia with combined immune deficiency
Review for gene: MKL1 was set to AMBER
Added comment: Two unrelated families reported.
Sources: Expert list
Mendeliome v0.1954 HYOU1 Zornitza Stark gene: HYOU1 was added
gene: HYOU1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: HYOU1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: HYOU1 were set to 27913302
Phenotypes for gene: HYOU1 were set to Immunodeficiency 59 and hypoglycemia, MIM# 233600
Review for gene: HYOU1 was set to RED
Added comment: Single individual reported.
Sources: Expert list
Mendeliome v0.1946 JAK1 Zornitza Stark gene: JAK1 was added
gene: JAK1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: JAK1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: JAK1 were set to 28111307
Phenotypes for gene: JAK1 were set to Eosinophilia; Eosinophilic enteritis; Thyroid disease; Poor growth; Viral infections
Review for gene: JAK1 was set to RED
Added comment: Single family reported (mother and two children) with GoF variant.
Sources: Expert list
Mendeliome v0.1944 IL2RB Zornitza Stark gene: IL2RB was added
gene: IL2RB was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: IL2RB was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: IL2RB were set to 31040184; 31040185
Phenotypes for gene: IL2RB were set to Immunodeficiency 63 with lymphoproliferation and autoimmunity, MIM# 618495; Lymphoproliferation, lymphadenopathy, hepatosplenomegaly, autoimmune haemolytic anaemia, dermatitis, enteropathy, hypergammaglobulinaemia, recurrent viral (EBV, CMV) infections
Review for gene: IL2RB was set to GREEN
Added comment: Five families reported.
Sources: Expert list
Mendeliome v0.1941 SH3KBP1 Zornitza Stark gene: SH3KBP1 was added
gene: SH3KBP1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: SH3KBP1 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: SH3KBP1 were set to 29636373; 21708930
Phenotypes for gene: SH3KBP1 were set to Immunodeficiency 61, MIM# 300310
Review for gene: SH3KBP1 was set to RED
Added comment: Single family reported, 247.5-kb intragenic deletion detected by array.
Sources: Expert list
Mendeliome v0.1936 IRF2BP2 Zornitza Stark gene: IRF2BP2 was added
gene: IRF2BP2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: IRF2BP2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: IRF2BP2 were set to 27016798
Phenotypes for gene: IRF2BP2 were set to Immunodeficiency, common variable, 14, MIM# 617765
Review for gene: IRF2BP2 was set to RED
Added comment: Single family reported only.
Sources: Expert list
Mendeliome v0.1933 TOP2B Zornitza Stark changed review comment from: Association with deafness: One multigenerational family where variant in this gene segregated; two additional variants identified in a cohort; supportive animal model data.
Association with immunological phenotypes: Four individuals from three unrelated families reported, all the variants affected the TOPRIM domain, functional data including mouse model.
Sources: Literature; to: Association with deafness: One multigenerational family where variant in this gene segregated; two additional variants identified in a cohort; supportive animal model data.
Association with immunological phenotypes: Four individuals from three unrelated families reported, all the variants affected the TOPRIM domain, functional data including mouse model.
Intellectual disability: two unrelated individuals reported with same de novo variant, c.187C > T, p.(His63Tyr) and also supportive mouse model data.
Sources: Literature
Mendeliome v0.1932 TOP2B Zornitza Stark changed review comment from: One multigenerational family where variant in this gene segregated; two additional variants identified in a cohort; supportive animal model data.
Sources: Literature; to: Association with deafness: One multigenerational family where variant in this gene segregated; two additional variants identified in a cohort; supportive animal model data.
Association with immunological phenotypes: Four individuals from three unrelated families reported, all the variants affected the TOPRIM domain, functional data including mouse model.
Sources: Literature
Mendeliome v0.1929 NFE2L2 Zornitza Stark gene: NFE2L2 was added
gene: NFE2L2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: NFE2L2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NFE2L2 were set to 29018201
Phenotypes for gene: NFE2L2 were set to Immunodeficiency, developmental delay, and hypohomocysteinemia, MIM# 617744; Recurrent respiratory and skin infection; Growth retardation; Developmental delay, borderline ID; White matter cerebral lesions
Review for gene: NFE2L2 was set to GREEN
Added comment: Four unrelated individuals reported.
Sources: Expert list
Mendeliome v0.1925 ZNF341 Zornitza Stark gene: ZNF341 was added
gene: ZNF341 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: ZNF341 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ZNF341 were set to 29907691; 29907690
Phenotypes for gene: ZNF341 were set to Hyper-IgE recurrent infection syndrome 3, autosomal recessive, MIM# 618282; Mild facial dysmorphism; Early onset eczema; Recurrent bacterial skin infections, abscesses; Recurrent respiratory infections, lung abscesses and pneumothoraces; Hyperextensible joints, bone fractures, retention of primary teeth
Review for gene: ZNF341 was set to GREEN
Added comment: 19 individuals from 10 families reported, some sharing the same homozygous variants (at least 4 different LoF variants reported).
Sources: Expert list
Mendeliome v0.1923 IL6ST Zornitza Stark gene: IL6ST was added
gene: IL6ST was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: IL6ST was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: IL6ST were set to 28747427; 30309848; 12370259; 16041381; 31914175
Phenotypes for gene: IL6ST were set to Hyper-IgE recurrent infection syndrome 4, autosomal recessive, MIM# 618523; Stuve-Wiedemann-like syndrome: skeletal dysplasia, neonatal lung dysfunction, thrombocytopenia, dermatitis, defective acute-phase response.
Review for gene: IL6ST was set to GREEN
Added comment: Also known as gp130. Two families with bi-allelic missense variants and immunological phenotype described initially. More recently, five individuals from three families reported with a more complex Stuve-Wiedemann-like phenotype reported, including skeletal dysplasia and neonatal lung dysfunction with additional features such as congenital thrombocytopenia, eczematoid dermatitis, renal abnormalities, and defective acute-phase response. These three families had bi-allelic LoF variants (nonsense and canonical splice site). Several mouse models support gene-disease association.
Sources: Expert list
Mendeliome v0.1916 POLE2 Zornitza Stark gene: POLE2 was added
gene: POLE2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: POLE2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: POLE2 were set to 26365386
Phenotypes for gene: POLE2 were set to Combined immunodeficiency; Lymphopaenia; Lack of TRECS, absent proliferation in response to antigens; Hypoglobulinaemia; Recurrent infections, disseminated BCG infections; Autoimmunity; Facial dysmorphism
Review for gene: POLE2 was set to RED
Added comment: Single family reported with homozygous splice site variant.
Sources: Expert list
Mendeliome v0.1914 FCHO1 Zornitza Stark gene: FCHO1 was added
gene: FCHO1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: FCHO1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FCHO1 were set to 32098969; 30822429
Phenotypes for gene: FCHO1 were set to Combined immunodeficiency; T cells: low, poor proliferation; B cells: normal number; Recurrent infections (viral, mycobacteria, bacterial, fungal); lymphoproliferation; Failure to thrive; Increased activation-induced T-cell death; Defective clathrin-mediated endocytosis
Review for gene: FCHO1 was set to GREEN
Added comment: More than 10 affected individuals with bi-allelic variants in this gene reported. Functional data.
Sources: Expert list
Mendeliome v0.1913 REL Zornitza Stark gene: REL was added
gene: REL was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: REL was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: REL were set to 31103457
Phenotypes for gene: REL were set to Combined immunodeficiency; T cells: normal, decreased memory CD4, poor proliferation; B cells: low, mostly naive, few switched memory B cells, impaired proliferation; Recurrent infections with bacteria, mycobacteria, salmonella and opportunistic organisms; Defective innate immunity
Review for gene: REL was set to RED
Added comment: Single individual from consanguineous family reported with homozygous canonical splice site variant, no functional data.
Sources: Expert list
Mendeliome v0.1908 TET2 Zornitza Stark changed review comment from: No evidence for Mendelian gene-disease association. Somatic TET2 variants are commonly found in cancers. One Finnish family reported where germline variant present 7 individuals, of whom 3 had lymphoma.; to: No evidence for Mendelian gene-disease association. Somatic TET2 variants are commonly found in cancers. One Finnish family reported where germline variant present 7 individuals, of whom 3 had lymphoma. Another French family reported with three sibs: frameshift variant and myeloid malignancies. Contribution of germline variants to malignancy risk to be established.
Mendeliome v0.1908 TET2 Zornitza Stark changed review comment from: No evidence for Mendelian gene-disease association. Somatic TET2 variants are commonly found in cancers.; to: No evidence for Mendelian gene-disease association. Somatic TET2 variants are commonly found in cancers. One Finnish family reported where germline variant present 7 individuals, of whom 3 had lymphoma.
Mendeliome v0.1907 RELA Zornitza Stark gene: RELA was added
gene: RELA was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: RELA was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RELA were set to 28600438; 29305315
Phenotypes for gene: RELA were set to Mucocutaneous ulceration, chronic, MIM# 618287; Impaired NFkB activation; reduced production of inflammatory cytokines; autoimmune cytopaenias
Review for gene: RELA was set to AMBER
Added comment: Two families reported, somewhat different phenotypes.
Sources: Expert list
Mendeliome v0.1905 RELB Zornitza Stark gene: RELB was added
gene: RELB was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: RELB was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RELB were set to 7834753; 26385063
Phenotypes for gene: RELB were set to Immunodeficiency 53, MIM# 617585; T cells: normal number, poor diversity, poor function; recurrent infections
Review for gene: RELB was set to AMBER
Added comment: Single family reported, functional data.
Sources: Expert list
Mendeliome v0.1894 CNKSR1 Zornitza Stark gene: CNKSR1 was added
gene: CNKSR1 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: CNKSR1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CNKSR1 were set to 30450701; 30237576; 21937992
Phenotypes for gene: CNKSR1 were set to Intellectual disability
Review for gene: CNKSR1 was set to AMBER
Added comment: Three families reported, two as part of large cohorts reporting multiple novel genes. Note the family reported in PMID 30450701 appears to be the same family as reported in PMID 21937992. Some functional data in PMID 30450701, including Drosophila model.
Sources: Expert Review
Mendeliome v0.1892 FRMD4A Zornitza Stark gene: FRMD4A was added
gene: FRMD4A was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: FRMD4A was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FRMD4A were set to 25388005; 30214071
Phenotypes for gene: FRMD4A were set to Intellectual disability; microcephaly; Corpus callosum, agenesis of, with facial anomalies and cerebellar ataxia, MIM# 616819
Review for gene: FRMD4A was set to AMBER
Added comment: Single Bedouin Israeli family reported with homozygous variant initially. Good segregation data. No functional data. Another family reported as part of a large consanguineous microcephaly cohort, different variant.
Sources: Expert Review
Mendeliome v0.1888 PIGK Zornitza Stark gene: PIGK was added
gene: PIGK was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PIGK was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PIGK were set to 32220290
Phenotypes for gene: PIGK were set to Intellectual disability; seizures; cerebellar atrophy
Review for gene: PIGK was set to GREEN
Added comment: 12 individuals from 9 unrelated families reported.
Sources: Literature
Mendeliome v0.1874 DGAT2 Zornitza Stark gene: DGAT2 was added
gene: DGAT2 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: DGAT2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: DGAT2 were set to 26786738
Phenotypes for gene: DGAT2 were set to axonal Charcot-Marie-Tooth disease
Review for gene: DGAT2 was set to AMBER
Added comment: Single family (father and son) reported, with supporting in vitro functional assays and a zebrafish model.
Sources: Expert Review
Mendeliome v0.1857 CHD3 Zornitza Stark Added comment: Comment when marking as ready: Over 30 unrelated individuals reported.
Mendeliome v0.1850 FBN2 Zornitza Stark Added comment: Comment when marking as ready: The gene-disease association with Contractual arachnodactyly is extremely well established. The gene-disease association with macular degeneration much less so. There are ~4 families reported in the literature, and some discussion about whether the contribution of rare FBN2 variants in this context are under a 'monogenic' or 'polygenic' model.
Mendeliome v0.1842 ADGRG6 Zornitza Stark edited their review of gene: ADGRG6: Added comment: Three families reported originally with severe prenatal-onset arthrogryposis (PMID: 26004201), one family with more complex neurological phenotype (PMID:30549416).; Changed rating: GREEN; Changed publications: 30549416, 26004201; Changed phenotypes: Lethal congenital contracture syndrome 9, OMIM #616503; Changed mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.1840 EIF2AK1 Zornitza Stark gene: EIF2AK1 was added
gene: EIF2AK1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: EIF2AK1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: EIF2AK1 were set to 32197074
Phenotypes for gene: EIF2AK1 were set to Intellectual disability; white matter abnormalities
Review for gene: EIF2AK1 was set to RED
Added comment: Single individual reported with de novo variant in this gene.
Sources: Literature
Mendeliome v0.1836 GNB2 Sue White gene: GNB2 was added
gene: GNB2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GNB2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: GNB2 were set to 31698099
Phenotypes for gene: GNB2 were set to intellectual disability; dysmorphic features
Penetrance for gene: GNB2 were set to Complete
Review for gene: GNB2 was set to AMBER
Added comment: single report of patient with de novo missense variant in GNB2 and intellectual disability. Emerging evidence of other de no missense variants in GNB2 and ID
Sources: Literature
Mendeliome v0.1819 QARS Zornitza Stark Publications for gene: QARS were set to Encodes t-RNA synthetase, over 20 individuals reported, include in mito panel in line with other t-RNA synthetases.
Mendeliome v0.1814 PTCD1 Zornitza Stark gene: PTCD1 was added
gene: PTCD1 was added to Mendeliome. Sources: NHS GMS
Mode of inheritance for gene: PTCD1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PTCD1 were set to 25058219
Phenotypes for gene: PTCD1 were set to Cardiomyopathy
Review for gene: PTCD1 was set to RED
Added comment: Single case reported with no functional characterisation. Biochemical analyses of heart tissue identified global COX defect. No OMIM phenotype.
Sources: NHS GMS
Mendeliome v0.1809 OXA1L Zornitza Stark gene: OXA1L was added
gene: OXA1L was added to Mendeliome. Sources: NHS GMS
Mode of inheritance for gene: OXA1L was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: OXA1L were set to 30201738; 16435202
Phenotypes for gene: OXA1L were set to Encephalopathy; hypotonia; developmental delay
Review for gene: OXA1L was set to AMBER
Added comment: Single family reported with biochemical and molecular analyses of patient skeletal muscle and fibroblasts. In vitro functional assays in human cell lines, Drosophila model, and yeast-based assays. Loss of function affects oxidative phosphorylation complexes IV and V.
Sources: NHS GMS
Mendeliome v0.1805 NDUFB10 Zornitza Stark gene: NDUFB10 was added
gene: NDUFB10 was added to Mendeliome. Sources: NHS GMS
Mode of inheritance for gene: NDUFB10 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NDUFB10 were set to 28040730; 32025618
Phenotypes for gene: NDUFB10 were set to fatal infantile lactic acidosis; cardiomyopathy
Review for gene: NDUFB10 was set to AMBER
Added comment: Single compound heterozygote case and mitochondrial phenotype. Assays of respiratory chain enzyme activities and functions in patient tissues/fibroblasts and in vitro functional assays. Plant model system supporting mitochondrial complex I dysfunction.
Sources: NHS GMS
Mendeliome v0.1801 MRM2 Zornitza Stark gene: MRM2 was added
gene: MRM2 was added to Mendeliome. Sources: NHS GMS
Mode of inheritance for gene: MRM2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MRM2 were set to 28973171
Phenotypes for gene: MRM2 were set to MELAS-like
Review for gene: MRM2 was set to AMBER
Added comment: Single individual reported plus functional data. MRM2 encodes an enzyme responsible for 2'-O-methyl modification at position U1369 in the human mitochondrial 16S rRNA.
Sources: NHS GMS
Mendeliome v0.1798 IDH3A Zornitza Stark gene: IDH3A was added
gene: IDH3A was added to Mendeliome. Sources: NHS GMS
Mode of inheritance for gene: IDH3A was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: IDH3A were set to 31012789; 30478029; 30058936; 28412069
Phenotypes for gene: IDH3A were set to Retinitis pigmentosa
Review for gene: IDH3A was set to GREEN
Added comment: Six unrelated families reported with retinitis pigmentosa. Mouse model.
Sources: NHS GMS
Mendeliome v0.1797 GATC Zornitza Stark gene: GATC was added
gene: GATC was added to Mendeliome. Sources: NHS GMS
Mode of inheritance for gene: GATC was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GATC were set to 30283131
Phenotypes for gene: GATC were set to Mitochondrial cardiomyopathy
Review for gene: GATC was set to RED
Added comment: Two families with 6 affected individuals reported; same homozygous variant.
Sources: NHS GMS
Mendeliome v0.1796 GATB Zornitza Stark gene: GATB was added
gene: GATB was added to Mendeliome. Sources: NHS GMS
Mode of inheritance for gene: GATB was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GATB were set to 30283131
Phenotypes for gene: GATB were set to Mitochondrial cardiomyopathy
Review for gene: GATB was set to RED
Added comment: Single family reported with two affected siblings
Sources: NHS GMS
Mendeliome v0.1795 FECH Zornitza Stark Added comment: Comment when marking as ready: Evidence for dominant disease is limited. Please note there is a common, hypomorphic deep intronic variant, IVS3-48T-C, as well as an exon 10 deletion reported.
Mendeliome v0.1795 FECH Zornitza Stark Phenotypes for gene: FECH were changed from to Protoporphyria, erythropoietic, 1 177000 AR
Mendeliome v0.1788 ZNF462 Zornitza Stark Added comment: Comment when marking as ready: Multiple congenital anomaly syndrome characterised by variable but usually mild global developmental delay and common craniofacial abnormalities, including ptosis, abnormal head shape, downslanting palpebral fissures, epicanthal folds, arched eyebrows, and short upturned nose. Many patients have hypotonia and feeding difficulties. A few patients show agenesis of the corpus callosum on brain imaging. Most cases occur sporadically, but there are rare familial cases that show highly variable expressivity in the phenotypic manifestations.
Mendeliome v0.1779 TIMM22 Zornitza Stark gene: TIMM22 was added
gene: TIMM22 was added to Mendeliome. Sources: NHS GMS
Mode of inheritance for gene: TIMM22 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TIMM22 were set to 30452684
Phenotypes for gene: TIMM22 were set to mitochondrial myopathy; hypotonia; gastroesophageal reflux disease
Review for gene: TIMM22 was set to AMBER
Added comment: One compound heterozygote case identified with supporting in vitro and patient cell functional assays.
Sources: NHS GMS
Mendeliome v0.1775 TMEM65 Zornitza Stark gene: TMEM65 was added
gene: TMEM65 was added to Mendeliome. Sources: NHS GMS
Mode of inheritance for gene: TMEM65 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TMEM65 were set to 28295037
Phenotypes for gene: TMEM65 were set to Mitochondrial encephalomyopathy
Review for gene: TMEM65 was set to AMBER
Added comment: One homozygous case with a mitochondrial encephalomyopathy and functional assays showing the protein is important for mitochondrial respiration and mtDNA copy number maintenance.
Sources: NHS GMS
Mendeliome v0.1774 FECH Michelle Torres reviewed gene: FECH: Rating: GREEN; Mode of pathogenicity: None; Publications: 20105171, 23016163; Phenotypes: Protoporphyria, erythropoietic, 1 177000 AR; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal; Current diagnostic: yes
Mendeliome v0.1773 SSBP1 Bryony Thompson gene: SSBP1 was added
gene: SSBP1 was added to Mendeliome. Sources: NHS GMS
Mode of inheritance for gene: SSBP1 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: SSBP1 were set to 31298765; 31479473; 31550237; 31550240
Phenotypes for gene: SSBP1 were set to Optic atrophy with or without extraocular phenotypes
Review for gene: SSBP1 was set to GREEN
Added comment: At least 9 dominant families/cases and 1 recessive with optic atrophy with/without additional clinical features, including retinal macular dystrophy, sensorineural deafness, mitochondrial myopathy, and kidney failure. Supporting evidence in functional assays and zebrafish model.
Sources: NHS GMS
Mendeliome v0.1766 ANXA11 Bryony Thompson gene: ANXA11 was added
gene: ANXA11 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: ANXA11 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ANXA11 were set to 28469040; 29845112; 30109997
Phenotypes for gene: ANXA11 were set to Amytrophic lateral sclerosis 23 MIM#617839
Review for gene: ANXA11 was set to GREEN
Added comment: 4 different missense variants in 10 patients from 7 unrelated families with amyotrophic lateral sclerosis and functional assays supporting association.
Sources: Expert list
Mendeliome v0.1744 SLC25A32 Zornitza Stark gene: SLC25A32 was added
gene: SLC25A32 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: SLC25A32 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLC25A32 were set to 26933868; 28443623
Phenotypes for gene: SLC25A32 were set to Exercise intolerance, riboflavin-responsive, MIM# 616839
Review for gene: SLC25A32 was set to GREEN
Added comment: Two unrelated families reported with functional data. Muscle biopsy showed ragged-red fibers and lipid storage mainly in type I oxidative fibers, small type II fibers, and poor immunostaining for succinate dehydrogenase (FAD-dependent mitochondrial respiratory chain complex II). Oral supplementation with riboflavin led to dramatic improvement in the clinical and biologic abnormalities.
Sources: Expert list
Mendeliome v0.1727 NADK2 Zornitza Stark gene: NADK2 was added
gene: NADK2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: NADK2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NADK2 were set to 24847004; 29388319; 27940755
Phenotypes for gene: NADK2 were set to 2,4-dienoyl-CoA reductase deficiency, MIM# 616034
Review for gene: NADK2 was set to GREEN
gene: NADK2 was marked as current diagnostic
Added comment: Mitochondrial dysfunction resulting in severe neurologic and metabolic dysfunction beginning in early infancy reported in two individuals with confirmed variants in this gene. Another individual with homozygous hypomorphic start loss variant g.36241900 A>G p. Met1Val and milder phenotype reported (PMID:29388319).
Sources: Expert list
Mendeliome v0.1725 ISCA1 Zornitza Stark gene: ISCA1 was added
gene: ISCA1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: ISCA1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ISCA1 were set to 28356563; 32092383; 31016283; 30113620; 30105122
Phenotypes for gene: ISCA1 were set to Multiple mitochondrial dysfunctions syndrome 5, MIM# 617613
Review for gene: ISCA1 was set to GREEN
gene: ISCA1 was marked as current diagnostic
Added comment: Multiple unrelated families reported. Severe disorder characterised by progressive neurologic deterioration beginning in early infancy. Affected individuals have essentially no psychomotor development and have early-onset seizures with neurologic decline and spasticity. Brain imaging shows severe leukodystrophy with evidence of dys- or delayed myelination. Rat model results in early lethality. Founder variant c.259G > A, p.(Glu87Lys) reported in Indian families.
Sources: Expert list
Mendeliome v0.1706 SEMA6B Zornitza Stark gene: SEMA6B was added
gene: SEMA6B was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SEMA6B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SEMA6B were set to 32169168
Phenotypes for gene: SEMA6B were set to Progressive myoclonic epilepsy
Mode of pathogenicity for gene: SEMA6B was set to Other
Review for gene: SEMA6B was set to GREEN
Added comment: Five individuals from unrelated families reported with de novo variants in the last exon, escaping NMD.
Sources: Literature
Mendeliome v0.1703 IFT74 Zornitza Stark edited their review of gene: IFT74: Added comment: Second individual with bi-allelic variants and BBS phenotype reported.; Changed rating: GREEN; Changed publications: 27486776, 32144365
Mendeliome v0.1699 TNNI3K Zornitza Stark gene: TNNI3K was added
gene: TNNI3K was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: TNNI3K was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: TNNI3K were set to 30010057; 29355681
Phenotypes for gene: TNNI3K were set to Cardiac conduction disease with or without dilated cardiomyopathy, MIM# 616117
Review for gene: TNNI3K was set to GREEN
gene: TNNI3K was marked as current diagnostic
Added comment: At least 6 multigenerational families reported where variants segregated with disease.
Sources: Expert list
Mendeliome v0.1690 SUPT16H Zornitza Stark gene: SUPT16H was added
gene: SUPT16H was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SUPT16H was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SUPT16H were set to 31924697
Phenotypes for gene: SUPT16H were set to Intellectual disability; Abnormality of the corpus callosum
Review for gene: SUPT16H was set to GREEN
Added comment: Four unrelated individuals with de novo missense variants in this gene. Publication also reports on a deletion, but note this includes other genes and the individual also had another CNV.
Sources: Literature
Mendeliome v0.1685 CXorf56 Zornitza Stark edited their review of gene: CXorf56: Added comment: Additional 3 families reported, upgrade to Green.; Changed rating: GREEN; Changed publications: 29374277, 31822863; Changed phenotypes: Mental retardation, X-linked 107, MIM# 301013
Mendeliome v0.1684 TNR Zornitza Stark gene: TNR was added
gene: TNR was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TNR was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TNR were set to 32099069
Phenotypes for gene: TNR were set to Spastic para- or tetraparesis; Axial muscular hypotonia; Intellectual disability; Transient opisthotonus
Review for gene: TNR was set to GREEN
Added comment: 13 individuals from 8 unrelated families reported.
Sources: Literature
Mendeliome v0.1659 MED12L Zornitza Stark gene: MED12L was added
gene: MED12L was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MED12L was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MED12L were set to 31155615
Phenotypes for gene: MED12L were set to Intellectual disability; Seizures; Autism
Review for gene: MED12L was set to GREEN
Added comment: 7 individuals reported, 3 with CNVs (encompassing other genes) and 4 with SNVs (frameshift, nonsense and splice site).
Sources: Expert list
Mendeliome v0.1657 MCM3AP Zornitza Stark gene: MCM3AP was added
gene: MCM3AP was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MCM3AP was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MCM3AP were set to 24123876; 28633435; 28969388; 29982295
Phenotypes for gene: MCM3AP were set to Peripheral neuropathy, autosomal recessive, with or without impaired intellectual development, MIM#618124
Review for gene: MCM3AP was set to GREEN
gene: MCM3AP was marked as current diagnostic
Added comment: At least 10 families reported.
Sources: Expert list
Mendeliome v0.1562 SPOP Zornitza Stark gene: SPOP was added
gene: SPOP was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SPOP was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SPOP were set to 32109420
Phenotypes for gene: SPOP were set to Intellectual disability; dysmorphism; microcephaly; macrocephaly
Mode of pathogenicity for gene: SPOP was set to Other
Review for gene: SPOP was set to GREEN
Added comment: Seven individuals reported with de novo missense variants in this gene. Gain-of-function variants associated with microcephaly whereas dominant-negative variants associated with macrocephaly.
Sources: Literature
Mendeliome v0.1496 ZNF592 Chern Lim changed review comment from: No patients reported with ZNF592 variant that is clearly disease causing.

A 2010 paper published a biallelic missense variant segregating in one family with non-progressive, autosomal recessive, congenital cerebellar ataxia; however functional data not strongly supportive of pathogenicity (PMID: 20531441). Same authors later identified a homozygous WDR73 variant in that family which explains the phenotype (PMID: 26123727).; to: No patients reported with ZNF592 variant that is clearly disease causing.

A 2010 paper published a biallelic missense variant segregating in one family with non-progressive, autosomal recessive, congenital cerebellar ataxia; however functional data not strongly conclusive for pathogenicity (PMID: 20531441). Same authors later identified a homozygous WDR73 variant in that family which explains the phenotype (PMID: 26123727).
Mendeliome v0.1473 CEP85L Zornitza Stark gene: CEP85L was added
gene: CEP85L was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CEP85L was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CEP85L were set to 32097630
Phenotypes for gene: CEP85L were set to Lissencephaly, posterior predominant
Review for gene: CEP85L was set to GREEN
Added comment: Thirteen individuals reported with mono allelic variants in this gene, inherited in two of the families. Mouse model had neuronal migration defects.
Sources: Literature
Mendeliome v0.1471 COX4I2 Zornitza Stark edited their review of gene: COX4I2: Added comment: Glu138Lys present in 3 homozygotes in gnomad, wich is out of keeping for this rare metabolic disorder. Note no other variants reported in this gene since original report in 2009. All variants submitted to ClinVar are VOUS/LB/B.; Changed rating: RED
Mendeliome v0.1437 FXR1 Bryony Thompson Added comment: Comment on list classification: Only two families, but a lot of functional supporting evidence including a mouse model. Pathogenic variants likely to be found in exon 15 of the skeletal muscle isoform, specifically.
Mendeliome v0.1435 WDR81 Kristin Rigbye changed review comment from: A homozygous and compound heterozygous nonsense and missense variants reported. Variants shown to result in a loss of function (PMID: 28969387).; to: Homozygous and compound heterozygous nonsense and missense variants reported. Variants shown to result in a loss of function (PMID: 28969387).
Mendeliome v0.1435 WDR81 Kristin Rigbye changed review comment from: A few homozygous families reported to date. Variants are expected to results in a loss of function, although functional studies have not been performed.; to: A homozygous and compound heterozygous nonsense and missense variants reported. Variants shown to result in a loss of function (PMID: 28969387).
Mendeliome v0.1418 SYNE1 Zornitza Stark edited their review of gene: SYNE1: Added comment: Well established gene-disease association with Emery-Dreifuss muscular dystrophy (AD), and with recessive ataxia.
Distal arthrogryposis: three families reported with bi-allelic distal truncating variants in the KASH domain. This appears to be a specific genotype-phenotype correlation.; Changed rating: GREEN; Changed publications: 23352163, 27782104; Changed phenotypes: Arthrogryposis multiplex congenita, myogenic type, MIM# 618484, Emery-Dreifuss muscular dystrophy 4, autosomal dominant, MIM# 612998, Spinocerebellar ataxia, autosomal recessive 8, MIM# 610743; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.1356 PTRHD1 Zornitza Stark gene: PTRHD1 was added
gene: PTRHD1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PTRHD1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PTRHD1 were set to 30398675; 27134041; 27753167; 29143421
Phenotypes for gene: PTRHD1 were set to Parkinsonism; Intellectual disability
Review for gene: PTRHD1 was set to GREEN
Added comment: Three unrelated families reported: two with homozygous missense variants; and one with truncating variant. Affected individuals have juvenile-onset parkinsonism and ID.
Sources: Expert list
Mendeliome v0.1346 PITRM1 Zornitza Stark gene: PITRM1 was added
gene: PITRM1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PITRM1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PITRM1 were set to 26697887; 29764912; 29383861
Phenotypes for gene: PITRM1 were set to Ataxia; Intellectual disability
Review for gene: PITRM1 was set to GREEN
gene: PITRM1 was marked as current diagnostic
Added comment: Three unrelated families reported with bi-allelic variants in this gene.
Sources: Expert list
Mendeliome v0.1338 TOR1AIP1 Bryony Thompson gene: TOR1AIP1 was added
gene: TOR1AIP1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: TOR1AIP1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TOR1AIP1 were set to 24856141; 31299614; 30723199; 27342937
Phenotypes for gene: TOR1AIP1 were set to Muscular dystrophy, autosomal recessive, with rigid spine and distal joint contractures MIM#617072
Review for gene: TOR1AIP1 was set to GREEN
Added comment: At least 5 families/cases reported with muscular dystrophy and sometimes cardiomyopathy.
Sources: Expert list
Mendeliome v0.1333 ELMO2 Zornitza Stark gene: ELMO2 was added
gene: ELMO2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: ELMO2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ELMO2 were set to 27476657
Phenotypes for gene: ELMO2 were set to Vascular malformation, primary intraosseous, MIM#606893
Review for gene: ELMO2 was set to GREEN
Added comment: Five unrelated families reported.
Sources: Expert list
Mendeliome v0.1325 MAP3K20 Bryony Thompson gene: MAP3K20 was added
gene: MAP3K20 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MAP3K20 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MAP3K20 were set to 27816943; 26755636
Phenotypes for gene: MAP3K20 were set to Centronuclear myopathy 6 with fiber-type disproportion MIM#617760; Split-foot malformation with mesoaxial polydactyly MIM#616890
Review for gene: MAP3K20 was set to GREEN
Added comment: 3 unrelated consanguineous families homozygous for 3 different variants with centronuclear myopathy, and at least 2 families reported with split-foot malformation. Null mouse model is embryonic lethal due to severe cardiac edema and growth retardation. Gene alias of ZAK used in the published studies.
Sources: Expert list
Mendeliome v0.1289 AHI1 Elena Savva commented on gene: AHI1: Functional assays using zebrafish model support that the C-terminal SH3 domain is not required (PMID: 25616960)
Mendeliome v0.1273 GRIA1 Zornitza Stark gene: GRIA1 was added
gene: GRIA1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: GRIA1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: GRIA1 were set to 28628100; 23033978; 26350204; 24896178
Phenotypes for gene: GRIA1 were set to Intellectual disability; autism
Review for gene: GRIA1 was set to GREEN
Added comment: Multiple affected individuals reported but in large ID cohorts reporting multiple candidate genes. Recurrent (p.A636T) variant.
Sources: Expert list
Mendeliome v0.1271 HDAC4 Zornitza Stark changed review comment from: Comment when marking as ready: Contradictory evidence: deletions linked to brachydactyly-MR but note some individuals reported without MR. Only reports of intragenic variants (still structural rather than SNVs).; to: Comment when marking as ready: Contradictory evidence: deletions linked to brachydactyly-MR but note some individuals reported without MR. Only two reports of intragenic variants (still structural rather than SNVs).
Mendeliome v0.1271 HDAC4 Zornitza Stark Added comment: Comment when marking as ready: Contradictory evidence: deletions linked to brachydactyly-MR but note some individuals reported without MR. Only reports of intragenic variants (still structural rather than SNVs).
Mendeliome v0.1258 TRAPPC4 Zornitza Stark gene: TRAPPC4 was added
gene: TRAPPC4 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: TRAPPC4 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TRAPPC4 were set to 31794024
Phenotypes for gene: TRAPPC4 were set to intellectual disability; epilepsy; spasticity; microcephaly
Review for gene: TRAPPC4 was set to GREEN
Added comment: Seven individuals from three unrelated families reported; recurrent splice site variant (hg19:chr11:g.118890966A>G; TRAPPC4: NM_016146.5; c.454+3A>G), not a founder variant.
Sources: Expert Review
Mendeliome v0.1254 NSF Zornitza Stark gene: NSF was added
gene: NSF was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NSF was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: NSF were set to 31675180
Phenotypes for gene: NSF were set to Seizures; EEG with burst suppression; Global developmental delay; Intellectual disability
Review for gene: NSF was set to AMBER
Added comment: Two individuals reported with de novo missense variants in this gene.
Sources: Literature
Mendeliome v0.1252 KAT8 Zornitza Stark gene: KAT8 was added
gene: KAT8 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KAT8 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: KAT8 were set to 31794431
Phenotypes for gene: KAT8 were set to Intellectual disability; seizures; autism; dysmorphic features
Review for gene: KAT8 was set to GREEN
Added comment: Eight unrelated individuals reported with de novo variants in this gene and a mouse model. All variants missense, in the chromobarrel domain or the acetyltransferase domain; three individuals had the same variant p.Tyr90Cys . One more individual reported with bi-allelic variants: one missense and one frameshift; carrier parents were normal suggesting that may be haploinsuffiency is not the mechanism.
Sources: Literature
Mendeliome v0.1174 TKFC Zornitza Stark gene: TKFC was added
gene: TKFC was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TKFC was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TKFC were set to 32004446
Phenotypes for gene: TKFC were set to Developmental delay; cataracts; liver dysfunction
Review for gene: TKFC was set to AMBER
Added comment: Two unrelated individuals reported.
Sources: Literature
Mendeliome v0.1172 RALGAPA1 Zornitza Stark gene: RALGAPA1 was added
gene: RALGAPA1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RALGAPA1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RALGAPA1 were set to 32004447
Phenotypes for gene: RALGAPA1 were set to Intellectual disability; hypotonia; infantile spasms.
Review for gene: RALGAPA1 was set to GREEN
Added comment: Four unrelated individuals reported.
Sources: Literature
Mendeliome v0.1150 DLG4 Zornitza Stark edited their review of gene: DLG4: Added comment: Four unrelated individuals reported.; Changed rating: GREEN; Changed publications: 27479843, 25123844, 19617690, 29460436, 23020937, 28135719; Changed phenotypes: Intellectual disability, Marfanoid habitus; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted; Set current diagnostic: yes
Mendeliome v0.1144 DCPS Zornitza Stark gene: DCPS was added
gene: DCPS was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: DCPS was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: DCPS were set to 25701870; 30289615; 25712129
Phenotypes for gene: DCPS were set to Al-Raqad syndrome, MIM#616459
Review for gene: DCPS was set to GREEN
gene: DCPS was marked as current diagnostic
Added comment: 7 individuals from 3 families reported.
Sources: Expert list
Mendeliome v0.1142 CUX1 Zornitza Stark gene: CUX1 was added
gene: CUX1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: CUX1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CUX1 were set to 25059644; 20510857; 30014507
Phenotypes for gene: CUX1 were set to Global developmental delay with or without impaired intellectual development, 618330
Review for gene: CUX1 was set to GREEN
gene: CUX1 was marked as current diagnostic
Added comment: Nine individuals from 7 families reported. Three individuals had normal intelligence at school age despite significant early developmental delay.
Sources: Expert list
Mendeliome v0.1120 RBBP8 Zornitza Stark Added comment: Comment when marking as ready: Individuals from 3 families reported in the literature with bi-allelic variants in this gene: clinical diagnosis was Jawad syndrome in one, and Seckel syndrome in 2. ID is a reported feature. Additional variant in ClinVar, so overall rating Green.
Mendeliome v0.1073 ACTA1 Zornitza Stark Phenotypes for gene: ACTA1 were changed from Myopathy, actin, congenital, with cores; Myopathy, actin, congenital, with excess of thin myofilaments; Myopathy, congenital, with fiber-type disproportion 1; Nemaline myopathy 3; ?Myopathy, scapulohumeroperoneal to Myopathy, actin, congenital, with cores, MIM#161800; Myopathy, actin, congenital, with excess of thin myofilaments, MIM#161800; Myopathy, congenital, with fiber-type disproportion 1, MIM#255310; Nemaline myopathy 3, MIM#161800; ?Myopathy, scapulohumeroperoneal
Mendeliome v0.1072 ACTA1 Zornitza Stark Phenotypes for gene: ACTA1 were changed from to Myopathy, actin, congenital, with cores; Myopathy, actin, congenital, with excess of thin myofilaments; Myopathy, congenital, with fiber-type disproportion 1; Nemaline myopathy 3; ?Myopathy, scapulohumeroperoneal
Mendeliome v0.1054 ACTA1 Elena Savva reviewed gene: ACTA1: Rating: GREEN; Mode of pathogenicity: None; Publications: PMID: 19562689, 15236405; Phenotypes: Myopathy, actin, congenital, with cores, Myopathy, actin, congenital, with excess of thin myofilaments, Myopathy, congenital, with fiber-type disproportion 1, Nemaline myopathy 3, ?Myopathy, scapulohumeroperoneal; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.1036 SLC9A3R1 Zornitza Stark Phenotypes for gene: SLC9A3R1 were changed from to Nephrolithiasis/osteoporosis, hypophosphatemic, 2, MIM# 612287
Mendeliome v0.1030 SLC9A3R1 Zornitza Stark reviewed gene: SLC9A3R1: Rating: RED; Mode of pathogenicity: None; Publications: 18784102; Phenotypes: Nephrolithiasis/osteoporosis, hypophosphatemic, 2, MIM# 612287; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.1025 MYRF Zornitza Stark gene: MYRF was added
gene: MYRF was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MYRF was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MYRF were set to 31048900; 31172260; 31266062; 31700225
Phenotypes for gene: MYRF were set to Nanophthalmos; High hyperopia
Review for gene: MYRF was set to GREEN
gene: MYRF was marked as current diagnostic
Added comment: Multiple affected individuals reported.
Sources: Expert list
Mendeliome v0.1023 FBXW11 Alison Yeung gene: FBXW11 was added
gene: FBXW11 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FBXW11 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: FBXW11 were set to PMID: 31402090
Phenotypes for gene: FBXW11 were set to Intellectual disability; developmental eye anomalies; digital anomalies
Review for gene: FBXW11 was set to GREEN
Added comment: Reported in >3 unrelated individuals
Functional studies in zebrafish
Sources: Literature
Mendeliome v0.1020 ANAPC1 Alison Yeung gene: ANAPC1 was added
gene: ANAPC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ANAPC1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: ANAPC1 were set to PMID: 31303264
Phenotypes for gene: ANAPC1 were set to Rothmund Thomson syndrome type 1, OMIM 618625
Review for gene: ANAPC1 was set to GREEN
gene: ANAPC1 was marked as current diagnostic
Added comment: 7 unrelated families reported
Sources: Literature
Mendeliome v0.1018 RINT1 Alison Yeung gene: RINT1 was added
gene: RINT1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RINT1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RINT1 were set to PMID: 31204009
Phenotypes for gene: RINT1 were set to Recurrent acute liver failure
Review for gene: RINT1 was set to GREEN
gene: RINT1 was marked as current diagnostic
Added comment: three unrelated individuals reported
Sources: Literature
Mendeliome v0.1001 ATP6V1C2 Zornitza Stark gene: ATP6V1C2 was added
gene: ATP6V1C2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ATP6V1C2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ATP6V1C2 were set to 31959358
Phenotypes for gene: ATP6V1C2 were set to Distal renal tubular acidosis
Review for gene: ATP6V1C2 was set to RED
Added comment: Single family reported, limited functional data.
Sources: Literature
Mendeliome v0.991 CTBP1 Zornitza Stark gene: CTBP1 was added
gene: CTBP1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: CTBP1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CTBP1 were set to 27094857; 28955726; 31041561
Phenotypes for gene: CTBP1 were set to Hypotonia, ataxia, developmental delay, and tooth enamel defect syndrome, MIM#617915
Review for gene: CTBP1 was set to GREEN
gene: CTBP1 was marked as current diagnostic
Added comment: At least 12 unrelated individuals reported with this neurodevelopmental disorder.
Sources: Expert list
Mendeliome v0.989 AGO1 Zornitza Stark gene: AGO1 was added
gene: AGO1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: AGO1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: AGO1 were set to 30213762; 22495306; 23020937; 25363768; 25356899; 27620904; 29346770; 28135719
Phenotypes for gene: AGO1 were set to Intellectual disability; autism
Review for gene: AGO1 was set to GREEN
Added comment: Multiple individuals reported with de novo variants in this gene, most as part of large ID cohorts so phenotypic information is scarce; however, given large number I have rated as Green.
Sources: Expert list
Mendeliome v0.981 CCDC47 Sebastian Lunke gene: CCDC47 was added
gene: CCDC47 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: CCDC47 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CCDC47 were set to 30401460
Phenotypes for gene: CCDC47 were set to Trichohepatoneurodevelopmental syndrome, 618268
Review for gene: CCDC47 was set to GREEN
gene: CCDC47 was marked as current diagnostic
Added comment: From GEL: Morimoto el al. (PMID: 30401460) report on 4 individuals from 4 unrelated families with biallelic LoF variants in CCDC47. The phenotype consisted of abnormal (woolly) hair, liver dysfunction, common facial features as well as DD/ID
Sources: Expert list
Mendeliome v0.973 TTC12 Zornitza Stark gene: TTC12 was added
gene: TTC12 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TTC12 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TTC12 were set to 31978331
Phenotypes for gene: TTC12 were set to Ciliary dyskinesia
Review for gene: TTC12 was set to GREEN
Added comment: Four unrelated families reported, LoF variants, respiratory phenotype.
Sources: Literature
Mendeliome v0.959 PIGS Zornitza Stark gene: PIGS was added
gene: PIGS was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: PIGS was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PIGS were set to 30269814
Phenotypes for gene: PIGS were set to Glycosylphosphatidylinositol biosynthesis defect 18 618143
Review for gene: PIGS was set to GREEN
Added comment: Three unrelated families reported. Severe neurological phenotype ranging from fetal akinesia to ID/EE
Sources: Expert Review
Mendeliome v0.957 FUK Zornitza Stark gene: FUK was added
gene: FUK was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FUK was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FUK were set to 30503518
Phenotypes for gene: FUK were set to Congenital disorder of glycosylation with defective fucosylation 2, MIM# 618324
Review for gene: FUK was set to AMBER
Added comment: Two unrelated individuals reported.
Sources: Literature
Mendeliome v0.955 ZNF142 Zornitza Stark gene: ZNF142 was added
gene: ZNF142 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: ZNF142 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ZNF142 were set to 31036918
Phenotypes for gene: ZNF142 were set to Neurodevelopmental disorder with impaired speech and hyperkinetic movements, MIM#618425
Review for gene: ZNF142 was set to GREEN
gene: ZNF142 was marked as current diagnostic
Added comment: 7 individuals from 4 unrelated families reported.
Sources: Expert list
Mendeliome v0.953 RALA Zornitza Stark gene: RALA was added
gene: RALA was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: RALA was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RALA were set to 30500825
Phenotypes for gene: RALA were set to Intellectual disability; Seizures
Review for gene: RALA was set to GREEN
gene: RALA was marked as current diagnostic
Added comment: 11 individuals from 10 unrelated families reported with this neurodevelopmental syndrome, half had seizures.
Sources: Expert list
Mendeliome v0.951 NBEA Zornitza Stark gene: NBEA was added
gene: NBEA was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: NBEA was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: NBEA were set to 30269351; 28554332; 12746398; 12826745; 11450821; 3377648; 23277425; 22109531; 23153818
Phenotypes for gene: NBEA were set to Intellectual disability; Seizures
Review for gene: NBEA was set to GREEN
gene: NBEA was marked as current diagnostic
Added comment: 24 de novo variants reported in individuals with a neurodevelopmental disorder
Sources: Expert list
Mendeliome v0.949 MACF1 Zornitza Stark gene: MACF1 was added
gene: MACF1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: MACF1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MACF1 were set to 30471716
Phenotypes for gene: MACF1 were set to Lissencephaly 9 with complex brainstem malformation, MIM# 618325
Mode of pathogenicity for gene: MACF1 was set to Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments
Review for gene: MACF1 was set to GREEN
Added comment: Nine individuals (including a pair of twins) reported with de novo variants in this gene.
Sources: Expert list
Mendeliome v0.939 HNRNPR Zornitza Stark gene: HNRNPR was added
gene: HNRNPR was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: HNRNPR was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: HNRNPR were set to 26795593; 31079900
Phenotypes for gene: HNRNPR were set to Intellectual disability; seizures
Review for gene: HNRNPR was set to GREEN
gene: HNRNPR was marked as current diagnostic
Added comment: Five unrelated individuals reported with de novo variants and a neurodevelopmental disorder.
Sources: Expert list
Mendeliome v0.914 RAB11A Zornitza Stark gene: RAB11A was added
gene: RAB11A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RAB11A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RAB11A were set to 29100083
Phenotypes for gene: RAB11A were set to Intellectual disability; seizures
Review for gene: RAB11A was set to AMBER
Added comment: Five individuals reported with DNMs and neurodevelopmental phenotypes as part of this paper; however, clinical details are sparse. Emerging gene, phenotype not yet clearly delineated.
Sources: Literature
Mendeliome v0.901 PIK3C2A Zornitza Stark gene: PIK3C2A was added
gene: PIK3C2A was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: PIK3C2A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PIK3C2A were set to 31034465
Phenotypes for gene: PIK3C2A were set to Oculoskeletodental syndrome, MIM# 618440
Review for gene: PIK3C2A was set to GREEN
gene: PIK3C2A was marked as current diagnostic
Added comment: Three unrelated consanguineous families reported.
Sources: Expert list
Mendeliome v0.888 MTHFS Zornitza Stark gene: MTHFS was added
gene: MTHFS was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MTHFS was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MTHFS were set to 30031689; 31844630; 22303332
Phenotypes for gene: MTHFS were set to Neurodevelopmental disorder with microcephaly, epilepsy, and hypomyelination, 618367
Review for gene: MTHFS was set to GREEN
Added comment: Three unrelated individuals reported with supporting biochemical evidence.
Sources: Literature
Mendeliome v0.876 CDH2 Zornitza Stark gene: CDH2 was added
gene: CDH2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CDH2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CDH2 were set to 31585109
Phenotypes for gene: CDH2 were set to Intellectual disability; corpus callosum abnormalities; congenital abnormalities
Review for gene: CDH2 was set to GREEN
Added comment: Nine unrelated individuals reported with de novo variants in this gene.
Sources: Literature
Mendeliome v0.870 RPL13 Zornitza Stark gene: RPL13 was added
gene: RPL13 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RPL13 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RPL13 were set to 31630789
Phenotypes for gene: RPL13 were set to Spondyloepimetaphyseal Dysplasia with Severe Short Stature
Review for gene: RPL13 was set to GREEN
Added comment: Four unrelated individuals reported with de novo variants.
Sources: Literature
Mendeliome v0.865 TUBGCP2 Zornitza Stark gene: TUBGCP2 was added
gene: TUBGCP2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TUBGCP2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TUBGCP2 were set to 31630790
Phenotypes for gene: TUBGCP2 were set to Lissencephaly; pachygyria; subcortical band heterotopia; microcephaly; intellectual disability
Review for gene: TUBGCP2 was set to GREEN
Added comment: Four unrelated families reported.
Sources: Literature
Mendeliome v0.860 TP73 Alison Yeung gene: TP73 was added
gene: TP73 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TP73 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TP73 were set to PMID: 31130284
Phenotypes for gene: TP73 were set to Cortical malformation; Lissencephaly
Review for gene: TP73 was set to AMBER
Added comment: Two unrelated families reported. No functional data
Sources: Literature
Mendeliome v0.858 SMG8 Alison Yeung gene: SMG8 was added
gene: SMG8 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SMG8 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SMG8 were set to PMID: 31130284
Phenotypes for gene: SMG8 were set to Intellectual disability
Review for gene: SMG8 was set to AMBER
Added comment: Two unrelated families reported. No functional data
Sources: Literature
Mendeliome v0.856 IQSEC3 Alison Yeung gene: IQSEC3 was added
gene: IQSEC3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: IQSEC3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: IQSEC3 were set to PMID: 31130284
Phenotypes for gene: IQSEC3 were set to Intellectual disability
Review for gene: IQSEC3 was set to AMBER
Added comment: Two unrelated families reported, no functional data
Sources: Literature
Mendeliome v0.854 ICE1 Alison Yeung gene: ICE1 was added
gene: ICE1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ICE1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ICE1 were set to PMID: 31130284
Phenotypes for gene: ICE1 were set to Intellectual disability, cerebral atrophy
Review for gene: ICE1 was set to AMBER
Added comment: Two unrelated families reported, no functional data
Sources: Literature
Mendeliome v0.852 EIF2A Alison Yeung gene: EIF2A was added
gene: EIF2A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: EIF2A was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: EIF2A were set to PMID: 31130284
Phenotypes for gene: EIF2A were set to Intellectual disability, epilepsy
Review for gene: EIF2A was set to AMBER
Added comment: reported in two unrelated families
Sources: Literature
Mendeliome v0.844 KCNN3 Alison Yeung gene: KCNN3 was added
gene: KCNN3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KCNN3 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: KCNN3 were set to PMID: 31155282
Phenotypes for gene: KCNN3 were set to Zimmermann-Laband syndrome 3; OMIM# 618658
Review for gene: KCNN3 was set to GREEN
gene: KCNN3 was marked as current diagnostic
Added comment: Three unrelated individuals reported
Sources: Literature
Mendeliome v0.837 CNOT1 Alison Yeung gene: CNOT1 was added
gene: CNOT1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CNOT1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: CNOT1 were set to PMID: 31006513
Phenotypes for gene: CNOT1 were set to Holoprosencephaly 12, with or without pancreatic agenesis; OMIM# 618500
Review for gene: CNOT1 was set to GREEN
gene: CNOT1 was marked as current diagnostic
Added comment: Reported in 3 unrelated individuals
Sources: Literature
Mendeliome v0.835 IQSEC1 Zornitza Stark gene: IQSEC1 was added
gene: IQSEC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: IQSEC1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: IQSEC1 were set to 31607425
Phenotypes for gene: IQSEC1 were set to Intellectual developmental disorder with short stature and behavioral abnormalities, MIM# 618687
Review for gene: IQSEC1 was set to GREEN
Added comment: Five individuals from two unrelated families reported, animal model data.
Sources: Literature
Mendeliome v0.828 LEMD2 Alison Yeung gene: LEMD2 was added
gene: LEMD2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: LEMD2 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: LEMD2 were set to PMID: 30905398
Phenotypes for gene: LEMD2 were set to progeroid disorder
Review for gene: LEMD2 was set to AMBER
Added comment: two reported unrelated individuals, limited functional evidence
Sources: Literature
Mendeliome v0.822 FAM149B1 Alison Yeung gene: FAM149B1 was added
gene: FAM149B1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FAM149B1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FAM149B1 were set to PMID: 30905400
Phenotypes for gene: FAM149B1 were set to Joubert; Ciliopathy
Review for gene: FAM149B1 was set to GREEN
gene: FAM149B1 was marked as current diagnostic
Added comment: Four unrelated families reported
Sources: Literature
Mendeliome v0.820 CARS Alison Yeung gene: CARS was added
gene: CARS was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CARS was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CARS were set to PMID: 30824121
Phenotypes for gene: CARS were set to Intellectual disability; microcephaly; brittle hair and nails
Added comment: Three reported unrelated families
Sources: Literature
Mendeliome v0.818 MAPK8IP3 Zornitza Stark gene: MAPK8IP3 was added
gene: MAPK8IP3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MAPK8IP3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MAPK8IP3 were set to 30612693
Phenotypes for gene: MAPK8IP3 were set to Neurodevelopmental disorder with or without variable brain abnormalities OMIM# 605431
Review for gene: MAPK8IP3 was set to GREEN
Added comment: >3 reported individuals and functional evidence in Caenorhabditis elegans
Sources: Literature
Mendeliome v0.814 ADAMTS9 Zornitza Stark gene: ADAMTS9 was added
gene: ADAMTS9 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ADAMTS9 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ADAMTS9 were set to 30609407
Phenotypes for gene: ADAMTS9 were set to Nephronophthisis-Related Ciliopathy
Review for gene: ADAMTS9 was set to GREEN
Added comment: Two families reported with functional evidence
Sources: Literature
Mendeliome v0.807 BNC2 Zornitza Stark gene: BNC2 was added
gene: BNC2 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: BNC2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: BNC2 were set to 31656805; 31051115
Phenotypes for gene: BNC2 were set to Lower urinary tract obstruction, congenital; OMIM #618612
Review for gene: BNC2 was set to GREEN
gene: BNC2 was marked as current diagnostic
Added comment: At least four unrelated families reported.
Sources: Expert list
Mendeliome v0.806 SIX2 Zornitza Stark Added comment: Comment when marking as ready: Single family reported.
Mendeliome v0.802 SRGAP1 Zornitza Stark Added comment: Comment when marking as ready: Two families reported.
Mendeliome v0.793 STN1 Zornitza Stark gene: STN1 was added
gene: STN1 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: STN1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: STN1 were set to 27432940
Phenotypes for gene: STN1 were set to Cerebroretinal microangiopathy with calcification and cysts 2, MIM#617341
Review for gene: STN1 was set to AMBER
Added comment: Two unrelated individuals reported.
Sources: Expert list
Mendeliome v0.790 JAM2 Zornitza Stark gene: JAM2 was added
gene: JAM2 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: JAM2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: JAM2 were set to 31851307
Phenotypes for gene: JAM2 were set to Primary brain calcification
Review for gene: JAM2 was set to GREEN
Added comment: Three unrelated families with bi-allelic variants reported. The clinical phenotypes of the four patients included parkinsonism (3/4), dysarthria (3/4), seizures (1/4), and probable asymptomatic (1/4), with diverse onset ages.
Sources: Literature
Mendeliome v0.786 TRMT1 Zornitza Stark gene: TRMT1 was added
gene: TRMT1 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: TRMT1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TRMT1 were set to 30289604; 26308914; 21937992
Phenotypes for gene: TRMT1 were set to Mental retardation, autosomal recessive 68; OMIM #618302
Review for gene: TRMT1 was set to GREEN
Added comment: 4 families reported:
-1 consanguineous Iranian family with 5 individuals with nonsyndromic moderate to severe impaired intellectual development.
-1 consanguineous Iranian family with 3 adult brothers with global developmental delay and moderately delayed intellectual development
-2 unrelated Pakistani families with 4 patients with impaired intellectual development.
All with homozygous mutations in the TRMT1 gene which segregated with the disorder in the families, but functional studies of the variants were not performed.
Sources: Expert list
Mendeliome v0.785 SLC35A3 Zornitza Stark Added comment: Comment when marking as ready: 1 family with 2 sibs, with segregation but no functional studies.

1 family with 8 affected people. The mutations segregated with the disorder in the family. Patient cells showed no normal transcript, indicating that they had no functional SLC35A3 protein. Golgi vesicles derived from patient fibroblasts showed significantly reduced transport of UDP-GlCNAc compared to controls.
Mendeliome v0.778 KIAA1161 Zornitza Stark gene: KIAA1161 was added
gene: KIAA1161 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: KIAA1161 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: KIAA1161 were set to 30656188; 30649222; 30460687; 29910000
Phenotypes for gene: KIAA1161 were set to Basal ganglia calcification, idiopathic, 7, autosomal recessive; OMIM #618317
Review for gene: KIAA1161 was set to GREEN
Added comment: Total 9 families, but no functional evidence:

12 patients from 6 unrelated Chinese families reported by Yao et al. (2018) and homozygous or compound heterozygous mutations in the MYORG gene. Functional studies of the variants and studies of patient cells were not performed, but the presence of nonsense mutations suggested a loss of function.

1 Chinese woman identified with homozygous nonsense mutation in the MYORG gene, segregated with the disorder in the family. Functional studies of the variant and studies of patient cells were not performed.

2 unrelated Middle Eastern families with homozygous mutations in the MYORG gene, which segregated with the disorder in the families. Functional studies of the variants were not performed.

4 sibs from one Turkish family with homozygous missense mutation in the MYORG gene, which segregated with the disorder in the family. Functional studies of the variant and studies of patient cells were not performed.
Sources: Literature
Mendeliome v0.777 ZC3H14 Zornitza Stark Added comment: Comment when marking as ready: Two families reported.
Mendeliome v0.765 AGMO Sue White gene: AGMO was added
gene: AGMO was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: AGMO was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: AGMO were set to 31555905
Phenotypes for gene: AGMO were set to microcephaly; intellectual disability; epilepsy
Penetrance for gene: AGMO were set to Complete
Review for gene: AGMO was set to GREEN
Added comment: biallelic LOF and missense reported
Sources: Literature
Mendeliome v0.748 STAG2 Zornitza Stark gene: STAG2 was added
gene: STAG2 was added to Mendeliome_VCGS. Sources: Other
Mode of inheritance for gene: STAG2 was set to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Publications for gene: STAG2 were set to 30765867; 28296084; 30447054; 29263825; 30158690
Phenotypes for gene: STAG2 were set to Mullegama-Klein-Martinez syndrome, MIM#301022
Review for gene: STAG2 was set to GREEN
Added comment: 12 unrelated families reported both males and females affected.
Sources: Other
Mendeliome v0.742 MESD Zornitza Stark gene: MESD was added
gene: MESD was added to Mendeliome_VCGS. Sources: Other
Mode of inheritance for gene: MESD was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MESD were set to 31564437
Phenotypes for gene: MESD were set to Osteogenesis imperfecta, type XX, MIM# 618644
Review for gene: MESD was set to GREEN
Added comment: Five families reported.
Sources: Other
Mendeliome v0.720 TNS2 Zornitza Stark gene: TNS2 was added
gene: TNS2 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: TNS2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TNS2 were set to 29773874
Phenotypes for gene: TNS2 were set to Nephrotic syndrome
Review for gene: TNS2 was set to GREEN
Added comment: Five families reported in this paper reporting multiple new SRNS genes.
Sources: Expert list
Mendeliome v0.715 IGHM Zornitza Stark gene: IGHM was added
gene: IGHM was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: IGHM was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: IGHM were set to 12370281; 8890099
Phenotypes for gene: IGHM were set to Agammaglobulinemia 1, MIM# 601495
Review for gene: IGHM was set to GREEN
Added comment: Multiple families reported; please note a 40kb deletion as well as SNVs.
Sources: Expert list
Mendeliome v0.703 AP2M1 Zornitza Stark gene: AP2M1 was added
gene: AP2M1 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: AP2M1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: AP2M1 were set to 31104773
Phenotypes for gene: AP2M1 were set to Intellectual developmental disorder 60 with seizures, MIM# 618587
Review for gene: AP2M1 was set to GREEN
Added comment: Four unrelated individuals reported, recurrent variant, NM_004068.3:c.508C>T or p.Arg170Trp.
Sources: Expert list
Mendeliome v0.681 CBWD1 Zornitza Stark gene: CBWD1 was added
gene: CBWD1 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: CBWD1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CBWD1 were set to 31862704
Phenotypes for gene: CBWD1 were set to CAKUT
Review for gene: CBWD1 was set to RED
Added comment: A pair of siblings with homozygous deletion in this gene reported; functional data including animal model.
Sources: Literature
Mendeliome v0.677 SETD5 Zornitza Stark Added comment: Comment when marking as ready: PMID: 29484850: Review of all literature reporting SETD5 (table 1). Out of 42 patients described in these papers, 71.4% have motor impairment/delay, 69.0% speech impairment/delay, 23.8% eplilepsy/seizures, 38% congenital heart defects, 95.2% facial dysmorphism, 21.4% hand stereotypies/ritualised behaviour, 19% impaired vision, 42.8% muscle hypotonia and 28.6% polydactyly.
Mendeliome v0.671 C19orf70 Zornitza Stark gene: C19orf70 was added
gene: C19orf70 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: C19orf70 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: C19orf70 were set to 29618761; 27623147; 27485409
Phenotypes for gene: C19orf70 were set to Combined oxidative phosphorylation deficiency 37, MIM# 618329
Review for gene: C19orf70 was set to GREEN
Added comment: Three unrelated families reported. HGNC approved name MICOS13.
Sources: Expert list
Mendeliome v0.669 MIPEP Zornitza Stark gene: MIPEP was added
gene: MIPEP was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: MIPEP was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MIPEP were set to 27799064
Phenotypes for gene: MIPEP were set to Combined oxidative phosphorylation deficiency 31, MIM# 617228
Review for gene: MIPEP was set to GREEN
Added comment: Four unrelated children reported.
Sources: Expert list
Mendeliome v0.668 MRPS14 Zornitza Stark gene: MRPS14 was added
gene: MRPS14 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: MRPS14 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MRPS14 were set to 30358850
Phenotypes for gene: MRPS14 were set to Combined oxidative phosphorylation deficiency 38, MIM# 618378
Review for gene: MRPS14 was set to RED
Added comment: Single individual reported, functional data.
Sources: Expert list
Mendeliome v0.667 PLEKHG2 Zornitza Stark gene: PLEKHG2 was added
gene: PLEKHG2 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: PLEKHG2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PLEKHG2 were set to 26573021
Phenotypes for gene: PLEKHG2 were set to Leukodystrophy and acquired microcephaly with or without dystonia, MIM# 616763
Review for gene: PLEKHG2 was set to RED
Added comment: Five individuals from two unrelated families reported, same homozygous missense variant.
Sources: Expert list
Mendeliome v0.658 TMEM63A Zornitza Stark gene: TMEM63A was added
gene: TMEM63A was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: TMEM63A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: TMEM63A were set to 31587869
Phenotypes for gene: TMEM63A were set to Leukodystrophy, hypomyelinating, 19, transient infantile, MIM# 618688
Review for gene: TMEM63A was set to GREEN
Added comment: Four unrelated families reported; in three individuals, the variant was de novo, and inherited from a deceased parent in the fourth.
Sources: Expert list
Mendeliome v0.652 H3F3B Zornitza Stark commented on gene: H3F3B: Elizabeth J Bhoj, H3F3A/B Consortium, Hakon H. Hakonarson.: Mutations In H3f3a And H3f3b Encoding Histone 3.3: Report Of 26 Patients With Neurodevelopmental And Congenital Manifestations. American Society of Human Genetics, Orlando, FL October 2017 Notes: Platform Presentation.
Mendeliome v0.646 EDC3 Zornitza Stark gene: EDC3 was added
gene: EDC3 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: EDC3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: EDC3 were set to 29685133; 25701870
Phenotypes for gene: EDC3 were set to Mental retardation, autosomal recessive 50, MIM# 616460
Review for gene: EDC3 was set to RED
Added comment: Single family reported; some functional data.
Sources: Expert list
Mendeliome v0.644 EIF3F Zornitza Stark gene: EIF3F was added
gene: EIF3F was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: EIF3F was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: EIF3F were set to 30409806
Phenotypes for gene: EIF3F were set to Mental retardation, autosomal recessive 67, MIM# 618295
Review for gene: EIF3F was set to GREEN
Added comment: Nine individuals from 7 families reported, all homozygous for the same missense variant, p.(Phe232Val). This variant is present at 0.12% frequency in non-Finnish Europeans in gnomad (no homozygotes).
Sources: Expert list
Mendeliome v0.638 RSRC1 Zornitza Stark gene: RSRC1 was added
gene: RSRC1 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: RSRC1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RSRC1 were set to 28640246; 29522154
Phenotypes for gene: RSRC1 were set to Intellectual developmental disorder, autosomal recessive 70, MIM# 618402
Review for gene: RSRC1 was set to AMBER
Added comment: Two unrelated families reported, 8 affected individuals.
Sources: Expert list
Mendeliome v0.635 CXorf56 Zornitza Stark gene: CXorf56 was added
gene: CXorf56 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: CXorf56 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: CXorf56 were set to 29374277
Phenotypes for gene: CXorf56 were set to Mental retardation, X-linked 107, MIM# 301013
Review for gene: CXorf56 was set to RED
Added comment: Single multigenerational family reported.
Sources: Expert list
Mendeliome v0.633 USP27X Zornitza Stark gene: USP27X was added
gene: USP27X was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: USP27X was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: USP27X were set to 25644381
Phenotypes for gene: USP27X were set to Mental retardation, X-linked 105, MIM#300984
Review for gene: USP27X was set to AMBER
Added comment: Four individuals from two unrelated families reported.
Sources: Expert list
Mendeliome v0.629 ODC1 Zornitza Stark gene: ODC1 was added
gene: ODC1 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: ODC1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ODC1 were set to 30475435
Phenotypes for gene: ODC1 were set to Intellectual disability; macrocephaly; dysmorphism
Mode of pathogenicity for gene: ODC1 was set to Other
Review for gene: ODC1 was set to GREEN
Added comment: Four individuals with de novo GoF variants in this gene reported.
Sources: Literature
Mendeliome v0.619 UGP2 Zornitza Stark gene: UGP2 was added
gene: UGP2 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: UGP2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: UGP2 were set to 31820119
Phenotypes for gene: UGP2 were set to Epileptic encephalopathy; intellectual disability; microcephaly
Review for gene: UGP2 was set to GREEN
Added comment: 22 individuals from 15 families reported with the same homozygous missense variant in this gene, chr2:64083454A > G, which causes a disruption of the start codon in the shorter isoform, which is expressed in brain.
Sources: Literature
Mendeliome v0.610 PIGP Zornitza Stark gene: PIGP was added
gene: PIGP was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: PIGP was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PIGP were set to 31139695
Phenotypes for gene: PIGP were set to Epileptic encephalopathy, early infantile, 55, MIM# 617599
Review for gene: PIGP was set to AMBER
Added comment: Three individuals from two unrelated families reported.
Sources: Expert list
Mendeliome v0.606 GOT2 Zornitza Stark gene: GOT2 was added
gene: GOT2 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: GOT2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GOT2 were set to 31422819
Phenotypes for gene: GOT2 were set to Epileptic encephalopathy, early infantile, 82, MIM# 618721
Review for gene: GOT2 was set to GREEN
Added comment: Four individuals from three unrelated families reported. Treatment with pyridoxine and serine ameliorated the phenotype.
Sources: Expert list
Mendeliome v0.568 PIGQ Zornitza Stark gene: PIGQ was added
gene: PIGQ was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: PIGQ was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PIGQ were set to 25558065; 24463883; 31148362
Phenotypes for gene: PIGQ were set to Epileptic encephalopathy, early infantile, 77, MIM# 618548
Review for gene: PIGQ was set to GREEN
Added comment: Three unrelated families reported.
Sources: Expert list
Mendeliome v0.565 ADAM22 Zornitza Stark gene: ADAM22 was added
gene: ADAM22 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: ADAM22 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ADAM22 were set to 27066583; 30237576
Phenotypes for gene: ADAM22 were set to Epileptic encephalopathy, early infantile, 61, MIM# 617933
Review for gene: ADAM22 was set to AMBER
Added comment: Two families reported; the second one as part of a large consanguineous cohort.
Sources: Expert list
Mendeliome v0.563 PHACTR1 Zornitza Stark gene: PHACTR1 was added
gene: PHACTR1 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: PHACTR1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PHACTR1 were set to 30256902
Phenotypes for gene: PHACTR1 were set to Epileptic encephalopathy, early infantile, 70, MIM# 618298
Review for gene: PHACTR1 was set to GREEN
Added comment: Three unrelated individuals reported with de novo variants in this gene.
Sources: Expert list
Mendeliome v0.561 GABRB1 Zornitza Stark gene: GABRB1 was added
gene: GABRB1 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: GABRB1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: GABRB1 were set to 23934111; 27273810; 31618474
Phenotypes for gene: GABRB1 were set to Epileptic encephalopathy, early infantile, 45, MIM# 617153
Review for gene: GABRB1 was set to GREEN
Added comment: Three individuals reported, two as part of large epilepsy cohorts.
Sources: Expert list
Mendeliome v0.557 GUF1 Zornitza Stark gene: GUF1 was added
gene: GUF1 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: GUF1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GUF1 were set to 26486472
Phenotypes for gene: GUF1 were set to Epileptic encephalopathy, early infantile, 40, MIM# 617065
Review for gene: GUF1 was set to RED
Added comment: Single family reported with homozygous missense in three sibs.
Sources: Expert list
Mendeliome v0.555 CPLX1 Zornitza Stark gene: CPLX1 was added
gene: CPLX1 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: CPLX1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CPLX1 were set to 26539891; 28422131
Phenotypes for gene: CPLX1 were set to Epileptic encephalopathy, early infantile, 63, MIM# 617976
Review for gene: CPLX1 was set to GREEN
Added comment: Five individuals from three unrelated families reported in larger neurodevelopmental cohorts.
Sources: Expert list
Mendeliome v0.553 RNF13 Zornitza Stark gene: RNF13 was added
gene: RNF13 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: RNF13 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: RNF13 were set to 30595371
Phenotypes for gene: RNF13 were set to Epileptic encephalopathy, early infantile, 73, MIM# 618379
Mode of pathogenicity for gene: RNF13 was set to Other
Review for gene: RNF13 was set to GREEN
Added comment: Three unrelated individuals with de novo gain-of-function variants in this gene reported; severe neurodegenerative disorder, seizures are a prominent part of the phenotype.
Sources: Literature
Mendeliome v0.551 GLS Zornitza Stark gene: GLS was added
gene: GLS was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: GLS was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GLS were set to 30575854; 30970188
Phenotypes for gene: GLS were set to Epileptic encephalopathy, early infantile, 71, MIM# 618328; Global developmental delay, progressive ataxia, and elevated glutamine, MIM# 618412
Review for gene: GLS was set to GREEN
Added comment: Three individuals from two unrelated families reported with early neonatal refractory seizures, structural brain abnormalities and oedema; significantly increased glutamine levels (PMID: 30575854).

Another three unrelated individuals described with compound het variants, one of which is a triplet expansion in the 5' UTR (PMID: 30970188).
Sources: Expert list
Mendeliome v0.549 CAD Zornitza Stark gene: CAD was added
gene: CAD was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: CAD was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CAD were set to 28007989; 25678555
Phenotypes for gene: CAD were set to Epileptic encephalopathy, early infantile, 50, MIM# 616457
Review for gene: CAD was set to GREEN
Added comment: Five individuals from four unrelated families reported, seizures are a prominent part of the phenotype of this progressive neurometabolic condition.
Sources: Expert list
Mendeliome v0.536 UQCRFS1 Zornitza Stark gene: UQCRFS1 was added
gene: UQCRFS1 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: UQCRFS1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: UQCRFS1 were set to 31883641
Phenotypes for gene: UQCRFS1 were set to Mitochondrial Complex III deficiency; lactic acidosis; fetal bradycardia; hypertrophic cardiomyopathy; alopecia totalis
Review for gene: UQCRFS1 was set to GREEN
Added comment: Two unrelated families reported plus functional evidence.
Sources: Literature
Mendeliome v0.532 WBP2 Zornitza Stark gene: WBP2 was added
gene: WBP2 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: WBP2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: WBP2 were set to 26881968
Phenotypes for gene: WBP2 were set to Deafness, autosomal recessive 107, MIM# 617639
Review for gene: WBP2 was set to AMBER
Added comment: Two unrelated families identified in a large cohort; supportive animal model data.
Sources: Expert list
Mendeliome v0.530 TMEM132E Zornitza Stark gene: TMEM132E was added
gene: TMEM132E was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: TMEM132E was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TMEM132E were set to 25331638
Phenotypes for gene: TMEM132E were set to Deafness, autosomal recessive 99, MIM# 618481
Review for gene: TMEM132E was set to AMBER
Added comment: Single family reported, supportive animal model.
Sources: Expert list
Mendeliome v0.529 GRAP Zornitza Stark gene: GRAP was added
gene: GRAP was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: GRAP was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GRAP were set to 30610177
Phenotypes for gene: GRAP were set to Deafness, autosomal recessive 114, MIM# 618456
Review for gene: GRAP was set to RED
Added comment: Two apparently unrelated Turkish families reported, however same homozygous missense variant, and SNP analysis indicated identity by descent.
Sources: Expert list
Mendeliome v0.527 SPNS2 Zornitza Stark gene: SPNS2 was added
gene: SPNS2 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: SPNS2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SPNS2 were set to 25356849
Phenotypes for gene: SPNS2 were set to Deafness, autosomal recessive 115, MIM# 618457
Review for gene: SPNS2 was set to AMBER
Added comment: Single family reported, mouse model shows progressive hearing loss.
Sources: Expert list
Mendeliome v0.516 RIPOR2 Zornitza Stark Marked gene: RIPOR2 as ready
Mendeliome v0.516 RIPOR2 Zornitza Stark Gene: ripor2 has been classified as Amber List (Moderate Evidence).
Mendeliome v0.516 RIPOR2 Zornitza Stark Classified gene: RIPOR2 as Amber List (moderate evidence)
Mendeliome v0.516 RIPOR2 Zornitza Stark Gene: ripor2 has been classified as Amber List (Moderate Evidence).
Mendeliome v0.515 RIPOR2 Zornitza Stark gene: RIPOR2 was added
gene: RIPOR2 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: RIPOR2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RIPOR2 were set to 24958875
Phenotypes for gene: RIPOR2 were set to Deafness, autosomal recessive 104, MIM# 616515
Review for gene: RIPOR2 was set to AMBER
Added comment: Single family and animal model data.
Sources: Expert list
Mendeliome v0.511 CLDN9 Zornitza Stark gene: CLDN9 was added
gene: CLDN9 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: CLDN9 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CLDN9 were set to 31175426; 19696885
Phenotypes for gene: CLDN9 were set to Deafness, autosomal recessive
Review for gene: CLDN9 was set to AMBER
Added comment: Single family with multiple sibs reported; mouse model exhibits deafness.
Sources: Literature
Mendeliome v0.509 TOP2B Zornitza Stark gene: TOP2B was added
gene: TOP2B was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: TOP2B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: TOP2B were set to 31198993
Phenotypes for gene: TOP2B were set to Autosomal dominant deafness
Review for gene: TOP2B was set to AMBER
Added comment: One multigenerational family where variant in this gene segregated; two additional variants identified in a cohort; supportive animal model data.
Sources: Literature
Mendeliome v0.485 DMXL2 Zornitza Stark gene: DMXL2 was added
gene: DMXL2 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: DMXL2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: DMXL2 were set to 31688942; 30237576
Phenotypes for gene: DMXL2 were set to Epileptic encephalopathy, early infantile, 81, MIM# 618663
Review for gene: DMXL2 was set to GREEN
Added comment: Four unrelated families reported.
Sources: Literature
Mendeliome v0.460 SLC5A6 Zornitza Stark gene: SLC5A6 was added
gene: SLC5A6 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: SLC5A6 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SLC5A6 were set to 31754459; 27904971
Phenotypes for gene: SLC5A6 were set to Developmental delay; epilepsy; neurodegeneration
Review for gene: SLC5A6 was set to GREEN
Added comment: Two unrelated families reported, functional data and some evidence of response to treatment.
Sources: Literature
Mendeliome v0.440 COA7 Zornitza Stark gene: COA7 was added
gene: COA7 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: COA7 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: COA7 were set to 29718187; 27683825
Phenotypes for gene: COA7 were set to Spinocerebellar ataxia, autosomal recessive, with axonal neuropathy 3, MIM#618387
Review for gene: COA7 was set to GREEN
Added comment: Five unrelated individuals reported with bi-allelic variants in this gene. Slowly progressive condition with variable onset, but at least three individuals presented at <5 years of age.
Sources: Expert list
Mendeliome v0.425 FAT2 Zornitza Stark gene: FAT2 was added
gene: FAT2 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: FAT2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: FAT2 were set to 29053796
Phenotypes for gene: FAT2 were set to Spinocerebellar ataxia 45, MIM#617769
Review for gene: FAT2 was set to AMBER
Added comment: Segregates in one family, and identified in one apparently sporadic case. In vitro functional evidence.
Sources: Expert list
Mendeliome v0.399 FLG2 Zornitza Stark gene: FLG2 was added
gene: FLG2 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: FLG2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FLG2 were set to 29758285; 28884927; 29505760
Phenotypes for gene: FLG2 were set to Peeling skin syndrome 6, MIM# 618084
Review for gene: FLG2 was set to GREEN
Added comment: 3 unrelated families reported.
Sources: Literature
Mendeliome v0.388 NUP37 Zornitza Stark gene: NUP37 was added
gene: NUP37 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: NUP37 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NUP37 were set to 30179222
Phenotypes for gene: NUP37 were set to Nephrotic syndrome
Review for gene: NUP37 was set to RED
Added comment: Single family reported with nephrotic syndrome.
Sources: Literature
Mendeliome v0.383 NUP85 Zornitza Stark gene: NUP85 was added
gene: NUP85 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: NUP85 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NUP85 were set to 30179222
Phenotypes for gene: NUP85 were set to Nephrotic syndrome, type 17, MIM#618176
Review for gene: NUP85 was set to GREEN
Added comment: Three unrelated families reported.
Sources: Literature
Mendeliome v0.372 KANK4 Zornitza Stark gene: KANK4 was added
gene: KANK4 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: KANK4 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: KANK4 were set to 25961457
Phenotypes for gene: KANK4 were set to Nephrotic syndrome
Review for gene: KANK4 was set to AMBER
Added comment: Two individuals from a single family reported; gene belongs to a family implicated in nephrotic syndrome.
Sources: Expert list
Mendeliome v0.370 KCNT2 Zornitza Stark gene: KCNT2 was added
gene: KCNT2 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: KCNT2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: KCNT2 were set to 29069600; 29740868
Phenotypes for gene: KCNT2 were set to Epileptic encephalopathy, early infantile, 57, MIM#617771; Developmental and epileptic encephalopathy
Review for gene: KCNT2 was set to GREEN
Added comment: Reviewed by E Palmer: Ambrosino et al described 2 unrelated females with de novo variants in KCNT2. The first patient had the variant p.(Arg190His) had with West syndrome followed by Lennox-Gastaut syndrome , the second patient had the variant p.(Arg190Pro) and DEE with migrating focal seizures. Both variants were absent gnomad and had supportive in silico support for pathogenicity. In an electrophisological model both KCNT2 R190P and KCNT2 R190H increased maximal current density and shifted toward more negative membrane potential values the activation curve of KCNT2 channels, consistent with gain of function effects. PMID: 29740868.

Gururaj et al describe one male with de novo variant in KCNT2 p. (Phe240Leu) and early infantile epileptic encephalopathy. he variant was absent gnomad and supportive evidence of pathogenicity This variant was electrophysiologically modelled and revealed that the variant resulted in a 'change in function' demonstrating unusual altered selectivity in KNa channels.PMID: 29069600.
Sources: Literature
Mendeliome v0.366 TASP1 Zornitza Stark gene: TASP1 was added
gene: TASP1 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: TASP1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TASP1 were set to 31209944; 31350873
Phenotypes for gene: TASP1 were set to Developmental delay; microcephaly; dysmorphic features; congenital abnormalities
Review for gene: TASP1 was set to GREEN
Added comment: Four unrelated families reported; two with founder mutation. Protein interacts with KMT2A and KMT2D. Another infant with a de novo missense variant reported in a single infant with multiple congenital abnormalities, insufficient evidence for mono allelic disease at present.
Sources: Literature
Mendeliome v0.365 FST Zornitza Stark gene: FST was added
gene: FST was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: FST was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: FST were set to 31215115
Phenotypes for gene: FST were set to Cleft lip and palate
Review for gene: FST was set to RED
Added comment: Single family reported.
Sources: Literature
Mendeliome v0.361 PRDM13 Zornitza Stark gene: PRDM13 was added
gene: PRDM13 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: PRDM13 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PRDM13 were set to 30710461
Phenotypes for gene: PRDM13 were set to Retinal dystrophy
Mode of pathogenicity for gene: PRDM13 was set to Other
Review for gene: PRDM13 was set to GREEN
Added comment: 8 individuals from three families reported with UPSTREAM NON-CODING variants in this gene.
Sources: Literature
Mendeliome v0.343 CSNK1E Zornitza Stark gene: CSNK1E was added
gene: CSNK1E was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: CSNK1E was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CSNK1E were set to 30488659
Phenotypes for gene: CSNK1E were set to Epileptic encephalopathy
Review for gene: CSNK1E was set to RED
Added comment: De novo splicing variant reported but in conjunction with STXBP1 variants; authors postulate it may contribute to susceptibility. Also reports linking variants in this gene to psychiatric disorders.
Sources: Literature
Mendeliome v0.333 ZMIZ1 Zornitza Stark gene: ZMIZ1 was added
gene: ZMIZ1 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: ZMIZ1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ZMIZ1 were set to 30639322
Phenotypes for gene: ZMIZ1 were set to Neurodevelopmental disorder with dysmorphic facies and distal skeletal anomalies; OMIM #618659
Review for gene: ZMIZ1 was set to GREEN
Added comment: 19 unrelated individuals with heterozygous variants in this gene reported.
Sources: Literature
Mendeliome v0.320 SOX4 Zornitza Stark gene: SOX4 was added
gene: SOX4 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: SOX4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SOX4 were set to 30661772
Phenotypes for gene: SOX4 were set to Coffin-Siris syndrome 10; OMIM #618506
Review for gene: SOX4 was set to GREEN
Added comment: 4 patients with syndromic DD/ID and de novo mutations in SOX4 gene. Functional assays demonstrated that the SOX4 proteins carrying these variants were unable to bind DNA in vitro and transactivate SOX reporter genes in cultured cells.
Sources: Literature
Mendeliome v0.309 POU3F3 Zornitza Stark gene: POU3F3 was added
gene: POU3F3 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: POU3F3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: POU3F3 were set to 24550763; 31303265
Phenotypes for gene: POU3F3 were set to Intellectual disability
Review for gene: POU3F3 was set to GREEN
Added comment: 19 individuals with DD/ID/speech issues and heterozygous POU3F3 disruptions, most of which were de novo variants. Positive functional cell-based analyses of pathogenic variants.

1 patient reported with whole gene deletion and ID.
Sources: Literature
Mendeliome v0.308 PISD Zornitza Stark commented on gene: PISD: 4 individuals in 2 unrelated but consanguineous families from Portugal and Brazil affected by early-onset retinal degeneration, sensorineural hearing loss, microcephaly, intellectual disability, and skeletal dysplasia with scoliosis and short stature (Liberfarb syndrome). Affected individuals shared a homozygous 10-bp deletion immediately upstream of the last exon of the PISD gene. In HEK293T cells, this variant led to aberrant splicing of PISD transcripts. 1 family with 2 sisters with congenital cataracts, short stature, and white matter changes identified compound heterozygous variants in the PISD gene. Decreased conversion of phosphatidylserine to PE in patient fibroblasts is consistent with impaired phosphatidylserine decarboxylase (PISD) enzyme activity.
Mendeliome v0.305 PIBF1 Zornitza Stark gene: PIBF1 was added
gene: PIBF1 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: PIBF1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PIBF1 were set to 26167768; 30858804; 29695797
Phenotypes for gene: PIBF1 were set to Joubert syndrome 33; OMIM #617767
Review for gene: PIBF1 was set to GREEN
Added comment: Three unrelated families plus three Hutterite families reported with bi-allelic variants in this gene.
Sources: Literature
Mendeliome v0.303 PHF21A Zornitza Stark gene: PHF21A was added
gene: PHF21A was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: PHF21A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PHF21A were set to 31649809; 30487643; 22770980
Phenotypes for gene: PHF21A were set to Intellectual disability; dysmorphic features
Review for gene: PHF21A was set to GREEN
Added comment: 9 cases with intellectual disability and craniofacial anomalies (Potocki-Shaffer syndrome), with de novo truncating variants in PHF21A. No functional evidence of variants, but PHF21A is highly expressed in the human fetal brain, which is consistent with the neurodevelopmental phenotype.

2 other unrelated individuals with translocations disrupting PHF21A. Lymphoblastoid cell lines from translocation subjects showed derepression of the neuronal gene SCN3A and reduced LSD1 occupancy at the SCN3A promoter, supporting a direct functional consequence of PHF21A haploinsufficiency on transcriptional regulation.
Sources: Literature
Mendeliome v0.301 POLR2A Sue White gene: POLR2A was added
gene: POLR2A was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: POLR2A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: POLR2A were set to 31353023
Phenotypes for gene: POLR2A were set to Neurodevelopmental disorder with hypotonia and variable intellectual and behavioral abnormalities, MIM# 618603
Mode of pathogenicity for gene: POLR2A was set to Other
Review for gene: POLR2A was set to GREEN
Added comment: 11 unrelated individuals reported with de novo variants in this gene. Missense variants postulated to exert a dominant-negative effect; LoF variants by contrast resulted in milder phenotype.
Sources: Literature
Mendeliome v0.294 NFASC Zornitza Stark gene: NFASC was added
gene: NFASC was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: NFASC was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NFASC were set to 31501903; 28940097; 30124836; 30850329; 31608123
Phenotypes for gene: NFASC were set to Neurodevelopmental disorder with central and peripheral motor dysfunction; OMIM #618356
Review for gene: NFASC was set to GREEN
Added comment: > 10 unrelated families reported, exhibiting a neurodevelopmental disorder (intellectual disability, developmental delay, motor impairment, speech difficulties, early onset demyelinating neuropathy), with homozygous variants in NFASC. Segregated with the disorder in the family. Some studies with functional evidence.
Sources: Literature
Mendeliome v0.273 GABRA5 Zornitza Stark gene: GABRA5 was added
gene: GABRA5 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: GABRA5 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: GABRA5 were set to 31056671; 29961870
Phenotypes for gene: GABRA5 were set to Epileptic encephalopathy, early infantile, 79; OMIM #618559
Review for gene: GABRA5 was set to GREEN
Added comment: 3 unrelated patients with de novo heterozygous missense mutations in GABRA5 gene. In vitro functional expression studies in HEK293 cells showed that the mutant subunit was expressed at the surface and incorporated into the channel, but the mutant channel was 10 times more sensitive to GABA compared to wildtype. This increased sensitization resulted in increased receptor desensitization to GABA, with a reduced maximal GABA-evoked current and impaired capacity to pass GABAergic chloride current.
Sources: Literature
Mendeliome v0.267 ELMOD1 Zornitza Stark gene: ELMOD1 was added
gene: ELMOD1 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: ELMOD1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ELMOD1 were set to 31327155
Phenotypes for gene: ELMOD1 were set to Intellectual disability
Review for gene: ELMOD1 was set to RED
Added comment: Single family reported.
Sources: Literature
Mendeliome v0.265 EEF1D Zornitza Stark gene: EEF1D was added
gene: EEF1D was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: EEF1D was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: EEF1D were set to 30787422; 28097321
Phenotypes for gene: EEF1D were set to Intellectual disability
Review for gene: EEF1D was set to AMBER
Added comment: Two unrelated families reported; one as part of a very large cohort of consanguineous families reporting multiple new candidate genes. No functional data.
Sources: Literature
Mendeliome v0.263 DYNC1I2 Zornitza Stark gene: DYNC1I2 was added
gene: DYNC1I2 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: DYNC1I2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: DYNC1I2 were set to 31079899
Phenotypes for gene: DYNC1I2 were set to Neurodevelopmental disorder with microcephaly and structural brain anomalies , MIM#618492
Review for gene: DYNC1I2 was set to GREEN
Added comment: Five individuals from three unrelated families reported.
Sources: Literature
Mendeliome v0.262 DTYMK Zornitza Stark gene: DTYMK was added
gene: DTYMK was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: DTYMK was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: DTYMK were set to 31271740
Phenotypes for gene: DTYMK were set to Intellectual disability; microcephaly
Review for gene: DTYMK was set to RED
Added comment: Single family, two affected sibs with compound het variants reported.
Sources: Literature
Mendeliome v0.261 DNAJA1 Zornitza Stark gene: DNAJA1 was added
gene: DNAJA1 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: DNAJA1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: DNAJA1 were set to 30972502
Phenotypes for gene: DNAJA1 were set to Intellectual disability; seizures
Review for gene: DNAJA1 was set to RED
Added comment: Single family with multiple affected individuals reported with bi-allelic truncating variant in this gene.
Sources: Literature
Mendeliome v0.256 DDX6 Zornitza Stark gene: DDX6 was added
gene: DDX6 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: DDX6 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: DDX6 were set to 31422817
Phenotypes for gene: DDX6 were set to Intellectual developmental disorder with impaired language and dysmorphic facies, MIM#618653
Review for gene: DDX6 was set to GREEN
Added comment: Five unrelated individuals reported with 5 different de novo heterozygous missense mutations in exon 11 of the DDX6 gene. All variants occurred at conserved residues in either the QxxR or V motifs within the second RecA-2 domain of the helicase core; this region is involved in RNA and/or ATP binding, suggesting functional consequences.
Sources: Literature
Mendeliome v0.251 CSDE1 Zornitza Stark gene: CSDE1 was added
gene: CSDE1 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: CSDE1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CSDE1 were set to 31579823
Phenotypes for gene: CSDE1 were set to Autism; intellectual disability; seizures; macrocephaly
Review for gene: CSDE1 was set to GREEN
Added comment: 18 families reported with high impact (stoppage/frameshift) variants in this gene. Eight de novo, eight inherited, two with undetermined inheritance. Functional data. Parents who had the variants were also affected, though generally more mildly.
Sources: Literature
Mendeliome v0.231 BCORL1 Zornitza Stark gene: BCORL1 was added
gene: BCORL1 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: BCORL1 was set to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Publications for gene: BCORL1 were set to 24123876; 30941876
Phenotypes for gene: BCORL1 were set to Shukla-Vernon syndrome, MIM#301029
Review for gene: BCORL1 was set to GREEN
Added comment: Four unrelated families reported altogether; some mothers mildly affected.
Sources: Literature
Mendeliome v0.220 ACTL6B Zornitza Stark gene: ACTL6B was added
gene: ACTL6B was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: ACTL6B was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ACTL6B were set to 31134736; 31031012; 30656450; 30237576
Phenotypes for gene: ACTL6B were set to Epileptic encephalopathy, early infantile, 76, MIM# 618468; Intellectual developmental disorder with severe speech and ambulation defects, MIM# 618470
Review for gene: ACTL6B was set to GREEN
Added comment: Over 10 unrelated individuals reported in the literature.
Sources: Literature
Mendeliome v0.215 PPP1R21 Zornitza Stark gene: PPP1R21 was added
gene: PPP1R21 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: PPP1R21 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PPP1R21 were set to 30520571
Phenotypes for gene: PPP1R21 were set to Hypotonia; intellectual disability; white matter abnormalities
Review for gene: PPP1R21 was set to GREEN
Added comment: At least four unrelated families reported.
Sources: Literature
Mendeliome v0.167 MIR17HG Zornitza Stark gene: MIR17HG was added
gene: MIR17HG was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: MIR17HG was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MIR17HG were set to 25391829; 21892160
Phenotypes for gene: MIR17HG were set to Feingold syndrome 2; OMIM #614326
Review for gene: MIR17HG was set to GREEN
Added comment: 4 unrelated cases reported - 3 with gene deletions, 1 with SNV
Sources: Expert list
Mendeliome v0.165 KLF7 Zornitza Stark gene: KLF7 was added
gene: KLF7 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: KLF7 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: KLF7 were set to 29251763
Phenotypes for gene: KLF7 were set to Intellectual disability
Review for gene: KLF7 was set to GREEN
Added comment: Four unrelated individuals with de novo missense variants; animal model data supportive.
Sources: Literature
Mendeliome v0.148 FRMPD4 Zornitza Stark gene: FRMPD4 was added
gene: FRMPD4 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: FRMPD4 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: FRMPD4 were set to 25644381; 29267967
Phenotypes for gene: FRMPD4 were set to Mental retardation, X-linked 104, MIM#300983
Review for gene: FRMPD4 was set to GREEN
Added comment: Multiple affected individuals from unrelated families reported.
Sources: Expert list
Mendeliome v0.147 FBXO31 Zornitza Stark gene: FBXO31 was added
gene: FBXO31 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: FBXO31 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FBXO31 were set to 24623383
Phenotypes for gene: FBXO31 were set to Mental retardation, autosomal recessive 45, MIM#615979
Review for gene: FBXO31 was set to RED
Added comment: Single consanguineous family reported with homozygous truncating variant, limited functional evidence.
Sources: Expert list
Mendeliome v0.119 CPA6 Zornitza Stark reviewed gene: CPA6: Rating: GREEN; Mode of pathogenicity: None; Publications: 25875328, 21922598, 23105115; Phenotypes: Epilepsy, familial temporal lobe, 5, MIM#614417, Febrile seizures, familial, 11, MIM#614418; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.61 ADD3 Zornitza Stark gene: ADD3 was added
gene: ADD3 was added to Mendeliome_VCGS. Sources: Expert list
Mode of inheritance for gene: ADD3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ADD3 were set to 29768408; 23836506
Phenotypes for gene: ADD3 were set to Cerebral palsy, spastic quadriplegic, 3, MIM#617008
Added comment: Four families reported in the literature with bi-allelic variants in this gene causing intellectual disability.
Sources: Expert list
Mendeliome v0.53 TTI1 Sebastian Lunke Added comment: Comment on list classification: Some patient evidence for association with ID, no patients identified to support association with dystonia or ataxia
Mendeliome v0.14 KDM6B Zornitza Stark gene: KDM6B was added
gene: KDM6B was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: KDM6B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: KDM6B were set to 31124279
Phenotypes for gene: KDM6B were set to Neurodevelopmental disorder with coarse facies and mild distal skeletal abnormalities, MIM#618505
Review for gene: KDM6B was set to GREEN
Added comment: 12 unrelated patients reported with de novo variants in this gene, no functional evidence.
Sources: Literature
Mendeliome v0.0 TOPORS Zornitza Stark gene: TOPORS was added
gene: TOPORS was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: TOPORS was set to Unknown
Mendeliome v0.0 PORCN Zornitza Stark gene: PORCN was added
gene: PORCN was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PORCN was set to Unknown
Mendeliome v0.0 POR Zornitza Stark gene: POR was added
gene: POR was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: POR was set to Unknown
Mendeliome v0.0 EPOR Zornitza Stark gene: EPOR was added
gene: EPOR was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: EPOR was set to Unknown
Mendeliome v0.0 ADIPOR1 Zornitza Stark gene: ADIPOR1 was added
gene: ADIPOR1 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: ADIPOR1 was set to Unknown