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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 v1.1886 | ZNF483 |
Mark Cleghorn gene: ZNF483 was added gene: ZNF483 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ZNF483 was set to Unknown Publications for gene: ZNF483 were set to 38951643 Phenotypes for gene: ZNF483 were set to primary ovarian failure MONDO:0005387 Review for gene: ZNF483 was set to AMBER Added comment: PMID: 38951643, ESHG 2024 presentation Large cohort assessing PRS for age of menarche Noted rare PTVs in ZNF483 assoc w earlier menarche No individual case information in this study Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v1.1853 | USP25 |
Sangavi Sivagnanasundram gene: USP25 was added gene: USP25 was added to Mendeliome. Sources: Other Mode of inheritance for gene: USP25 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: USP25 were set to 38875478 Phenotypes for gene: USP25 were set to USP25-related epilepsy (epilepsy, idiopathic generalized, MONDO:0005579) Mode of pathogenicity for gene: USP25 was set to Other Review for gene: USP25 was set to GREEN Added comment: PMID: 38875478 5 heterozygous variants were identified in 8 individuals from 5 unrelated families all with clinical phenotypes associated with generalised epilepsy. Knock-out mouse model showed increased seizure susceptibility compared to the WT. Both loss of function and gain of function variants can be a mechanism of disease in individuals with USP25-related epilepsy. Sources: Other |
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| 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 v1.1840 | 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. |
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| 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. |
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| 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. |
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| 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). |
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| 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). |
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| 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) |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v1.1790 | ZNF41 |
Zornitza Stark gene: ZNF41 was added gene: ZNF41 was added to Mendeliome. Sources: Expert Review disputed tags were added to gene: ZNF41. Mode of inheritance for gene: ZNF41 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females Publications for gene: ZNF41 were set to 14628291; 23871722 Phenotypes for gene: ZNF41 were set to non-syndromic X-linked intellectual disability MONDO:0019181 Review for gene: ZNF41 was set to RED Added comment: DISPUTED by ClinGen. Shoichet et al. (2003) described a female patient with severe nonsyndromic mental retardation and a de novo balanced translocation t(X;7)(p11.3;q11.21) in whom they cloned the DNA fragment that contained the X chromosomal and the autosomal breakpoint. In silico sequence analysis demonstrated that the ZNF41 gene was disrupted. Expression studies indicated that ZNF41 transcripts were absent in the patient cell line, suggesting that the mental disorder in this patient resulted from loss of functional ZNF41. Screening of patients with mental retardation led to the identification of 2 other ZNF41 mutations that were not found in healthy control individuals. Based on their finding of the mutations in ZNF41 identified by Shoichet et al. (2003) in a total of 7 males in the NHLBI Exome Variant Server, and the additional finding of truncating ZNF41 variants in 1 male and 1 female in that database, Piton et al. (2013) classified the involvement of ZNF41 in mental retardation as highly questionable. Sources: Expert Review |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v1.1783 | LCP1 |
Zornitza Stark gene: LCP1 was added gene: LCP1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: LCP1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: LCP1 were set to 38710235 Phenotypes for gene: LCP1 were set to Bone marrow failure syndrome, MONDO:0000159, LCP1-related Review for gene: LCP1 was set to AMBER Added comment: 3 individuals from single kindred presenting with fevers, recurrent infections ,lymphopenia, neutropenia and thrombocytopenia. Murine model with similar phenotype. heterozygous LCP1c.740 -1G>A splice site variant hypothesized to cause dominant negative mode of inheritance Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v1.1737 | SLC4A7 |
Chirag Patel gene: SLC4A7 was added gene: SLC4A7 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SLC4A7 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SLC4A7 were set to PMID: 35486108, 32594822 Phenotypes for gene: SLC4A7 were set to Retinitis pigmentosa, MONDO:0019200 Review for gene: SLC4A7 was set to AMBER Added comment: Total 4 individuals from 3 families (2 known to be from same ethnic origin: Oriental-Jewish) with adult onset retinitis pigmentosa. All individuals had same homozygous frameshift variant in SLC4A7 gene (p.P670Sfs*6). RNA seq analysis revealed retinal expression in human and mouse samples. Immunohistochemistry of human and mouse retina revealed relatively strong expression in various retinal layers. Western blot analysis in fibroblasts from 1 patient showed absence of encoded protein. Sources: Literature |
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| Mendeliome v1.1736 | SLC39A12 |
Chirag Patel gene: SLC39A12 was added gene: SLC39A12 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SLC39A12 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SLC39A12 were set to PMID: 35486108 Phenotypes for gene: SLC39A12 were set to Retinitis pigmentosa, MONDO:0019200 Review for gene: SLC39A12 was set to RED Added comment: WES (with targeted analysis of SLC genes) in 913 cases from 785 families with inherited retinal dystrophy. They identified 1 homozygous variant in SLC39A12 in 1 individual with adult-onset mild widespread retinal degeneration with marked macular involvement. No functional data. RNA seq analysis revealed retinal expression in human samples. Immunohistochemistry of human and mouse retina revealed comprehensive expression in various retinal cells including retinal pigment epithelium. Sources: Literature |
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| Mendeliome v1.1734 | PQLC2 |
Chirag Patel gene: PQLC2 was added gene: PQLC2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PQLC2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PQLC2 were set to PMID: 35486108; and online publication GiM Feb 2024 Phenotypes for gene: PQLC2 were set to Retinitis pigmentosa, MONDO:0019200 Review for gene: PQLC2 was set to GREEN gene: PQLC2 was marked as current diagnostic Added comment: HGNC Gene Symbol: SLC66A1 Total 8 individuals from 6 families. Millo et al. (2022)(PMID: 35486108) - WES (with targeted analysis of SLC genes) in 913 cases from 785 families with inherited retinal dystrophy. They identified 2 different homozygous variants in SLC66A1 in 3 individuals from 2 families with adult-onset retinal dystrophy. No functional data. Olinger et al. (2024)(https://www.sciencedirect.com/science/article/pii/S2949774424009804) - CNV analysis of trio and non-trio WGS data from Genomics England 100K genomes project. They identified homozygous 21kb deletion spanning nearly entire SLC66A1 gene in 2 siblings with adult-onset rod-cone dystrophy (parents HTZ carriers). Review of cohort data then identified homozygous LOF variants (1 nonsense, 2 frameshift) in another 3 individuals with rod-cone dystrophy. Sources: Literature |
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| Mendeliome v1.1733 | SUPT7L |
Chirag Patel gene: SUPT7L was added gene: SUPT7L was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SUPT7L was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SUPT7L were set to PMID: 38592547 Phenotypes for gene: SUPT7L were set to Lipodystrophy, MONDO:0006573 Review for gene: SUPT7L was set to RED Added comment: 1 case with generalised lipodystrophy, growth retardation, congenital cataracts, severe developmental delay and progeriod features. Trio WGS identified compound heterozygous variants in SUPT7L (missense causing abnormal splicing + frameshift). Variants validated with Sanger. SUPT7L encodes a component of the core structural module of the STAGA complex - a nuclear multifunctional protein complex that plays a role in various cellular processes (e.g. transcription factor binding, protein acetylation, splicing, and DNA damage control). Immunolabelling in fibroblasts from patient showed complete absence of SUPT7L protein. Transcriptome data from individual revealed downregulation of several gene sets associated with DNA replication, DNA repair, cell cycle, and transcription. Sources: Literature |
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| Mendeliome v1.1728 | JAK1 | Zornitza Stark edited their review of gene: JAK1: Added comment: PMID 38563820: 59 individuals presenting with autoimmunity, atopy, colitis, and/or dermatitis and one of four JAK1 variants.; Changed rating: GREEN; Changed publications: 28111307, 28008925, 30671064, 38563820; Changed phenotypes: Autoinflammatory syndrome, MONDO:0019751, JAK1-related, Eosinophilia, Eosinophilic enteritis, Thyroid disease, Poor growth, Viral infections, Susceptibility to mycobacteria and viruses, Autoinflammation, immunde dysregulation, and eosinophilia, MIM# 618999 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| 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 v1.1717 | RNU4-2 |
Zornitza Stark changed review comment from: Emerging evidence that de novo variants in this gene cause ID. Sources: Literature; to: Over 100 individuals with ID found to have de novo variants in this gene. Please note difficult to identify on ES. Sources: Literature |
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| Mendeliome v1.1713 | CYLD |
Zornitza Stark commented on gene: CYLD: DEFINITIVE by ClinGen for the cutaneous disorder, Brooke-Spiegler syndrome, 605041. LIMITED for FTD/ALS -- rated as Amber due to multiple affected individuals and experimental data. |
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| 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 |
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| 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. |
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| 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. |
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| Mendeliome v1.1693 | SNF8 | Zornitza Stark edited their review of gene: SNF8: Added comment: Four individuals from 3 families with NDD plus OA, rather than DEE.; Changed phenotypes: Developmental and epileptic encephalopathy 115, MIM#620783, Neurodevelopmental disorder plus optic atrophy, MIM# 620784 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| 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 |
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| Mendeliome v1.1674 | SEPHS1 |
Zornitza Stark gene: SEPHS1 was added gene: SEPHS1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SEPHS1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SEPHS1 were set to 38531365 Phenotypes for gene: SEPHS1 were set to Neurodevelopmental disorder, MONDO:0700092, SEPHS1-related Review for gene: SEPHS1 was set to GREEN Added comment: Nine individuals from eight families with developmental delay, growth and feeding problems, hypotonia, and dysmorphic features, all with heterozygous missense variants in SEPHS1. Eight of these individuals had a recurrent variant at amino acid position 371 of SEPHS1 (p.Arg371Trp, p.Arg371Gln, and p.Arg371Gly); seven of these variants were known to be de novo. Sources: Literature |
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| Mendeliome v1.1670 | SCA4_ZFHX3_GGC |
Bryony Thompson STR: SCA4_ZFHX3_GGC was added STR: SCA4_ZFHX3_GGC was added to Mendeliome. Sources: Literature Mode of inheritance for STR: SCA4_ZFHX3_GGC was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for STR: SCA4_ZFHX3_GGC were set to 38035881; 38197134 Phenotypes for STR: SCA4_ZFHX3_GGC were set to spinocerebellar ataxia type 4 MONDO:0010847 Review for STR: SCA4_ZFHX3_GGC was set to GREEN STR: SCA4_ZFHX3_GGC was marked as clinically relevant Added comment: PMID: 38035881 - repeat expansion is identified in 5 Swedish ataxia families that developed balance and gait disturbances at 15 to 60 years of age and had sensory neuropathy and slow saccades. PMID: 38197134 - Poly-glycine GGC expansion in the last coding exon of ZFHX3 was identified in the original SCA4 Utah pedigree (Swedish origin) in the region of high linkage identified on 16q22. The expansion was also identified in an Iowa ataxia pedigree of Swedish ancestry. The expansion wasn’t identified in 11,258 exomes, 7,650 WGS probands without neurological phenotype, or 803 individuals with ataxia. Grch38 chr16:72787695–72787758 Normal allele <30 repeats, 21 repeats is the most common (derived from 33,094 individuals) Undefined pathogenic 30-48 repeats Definitive pathogenicity 48+ repeats Sources: Literature |
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| 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 |
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| Mendeliome v1.1664 | MCOLN1 | Zornitza Stark edited their review of gene: MCOLN1: Added comment: PMID 37972748: 23 affected individuals from 13 families with Lisch epithelial corneal dystrophy. WGS in 2 families and then targeted Sanger sequencing in the other families identified 9 rare heterozygous loss of function variants in MCOLN1. Homozygous and compound-heterozygous state of 4 of 9 LECD-associated variants cause Mucolipidosis IV (MLIV), which comprises neurodegeneration as well as corneal opacity of infantile-onset with epithelial autofluorescent lysosomal inclusions. Six parents of 3 patients with MLIV confirmed to carry pathogenic MCOLN1 variants did not have the LECD phenotype. Heterozygous MCOLN1 variants can be associated with incomplete penetrance and variable expressivity of LECD with an estimated penetrance of 0.2% for MCOLN1 loss-of-function variants based on gnomAD.; Changed publications: 37972748; Changed phenotypes: Mucolipidosis IV, MIM# 252650, MONDO:0009653, Lisch epithelial corneal dystrophy, OMIM# 620763; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| 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 |
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| 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. |
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| 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. |
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| Mendeliome v1.1656 | FRYL |
Ain Roesley gene: FRYL was added gene: FRYL was added to Mendeliome. Sources: Literature Mode of inheritance for gene: FRYL was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: FRYL were set to 38479391 Phenotypes for gene: FRYL were set to neurodevelopmental disorder MONDO:0700092, FRYL-related Review for gene: FRYL was set to GREEN gene: FRYL was marked as current diagnostic Added comment: 14 individuals, all de novo except 1x duo testing (not present in tested father) 5x missense + 8x fs/stopgain + 1x canonical splice 13/13 with ID/DD (1x deceased) 4/14 seizures 7/14 with cardiac anomalies such as PDA, TOF, VSD, dextrocardia 1x also has a de novo fs variant in SF3B4 1x also has a de novo stop gain variant in SDHA functional studies using flies were performed Sources: Literature |
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| Mendeliome v1.1654 | KCNB2 |
Ain Roesley changed review comment from: 7 individuals, all missense 1x from asymptomatic father 2/5 MRI anomalies 2/5 cardiac anomalies 2/7 urogenital anomalies 7/7 with ID 2/7 epilepsy 2/7 hypotonia Sources: Literature; to: 7 individuals, all missense 5 de novo + 1x inherited from father who has hypotonia + 1x from asymptomatic father 2/5 MRI anomalies 2/5 cardiac anomalies 2/7 urogenital anomalies 7/7 with ID 2/7 epilepsy 2/7 hypotonia Sources: Literature |
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| Mendeliome v1.1654 | KCNB2 |
Ain Roesley gene: KCNB2 was added gene: KCNB2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: KCNB2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: KCNB2 were set to 38503299 Phenotypes for gene: KCNB2 were set to neurodevelopmental disorder MONDO:0700092, KCNB2-related Review for gene: KCNB2 was set to GREEN gene: KCNB2 was marked as current diagnostic Added comment: 7 individuals, all missense 1x from asymptomatic father 2/5 MRI anomalies 2/5 cardiac anomalies 2/7 urogenital anomalies 7/7 with ID 2/7 epilepsy 2/7 hypotonia Sources: Literature |
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| Mendeliome v1.1649 | PLXNB2 |
Chirag Patel gene: PLXNB2 was added gene: PLXNB2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PLXNB2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PLXNB2 were set to PMID: 38458752 Phenotypes for gene: PLXNB2 were set to Amelogenesis imperfecta MONDO:0019507, PLXNB2 -related; Sensorineural hearing loss disorder MONDO:0020678, PLXNB2 -related Review for gene: PLXNB2 was set to GREEN gene: PLXNB2 was marked as current diagnostic Added comment: 8 individuals from 6 families with core features of amelogenesis imperfecta and sensorineural hearing loss. Intellectual disability, ocular disease, ear developmental abnormalities and lymphoedema were also present in multiple cases. WES and WGS identified biallelic pathogenic variants in PLXNB2 (missense, nonsense, splice and a multiexon deletion variants). Variants segregated with disease. PLXNB2 is a large transmembrane semaphorin receptor protein, and semaphorin-plexin signalling controls cellular interactions that are critical during development as well as in adult life stages. Plxnb2 expression was detected in differentiating ameloblasts in mice. Human phenotype overlaps with that seen in Plxnb2 knockout mice. Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v1.1633 | USP14 |
Zornitza Stark gene: USP14 was added gene: USP14 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: USP14 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: USP14 were set to 38469793; 35066879 Phenotypes for gene: USP14 were set to Syndromic disease MONDO:0002254, USP14-related Review for gene: USP14 was set to GREEN Added comment: PMID 35066879: 3 fetuses from 2 different branches of a consanguineous family, presenting with distal arthrogryposis, underdevelopment of the corpus callosum, and dysmorphic facial features. Exome sequencing identified a biallelic 4-bp deletion (c.233_236delTTCC; p.Leu78Glnfs*11) in USP14, and sequencing of family members showed segregation with the phenotype. Ubiquitin-specific protease 14 (USP14) encodes a major proteasome-associated deubiquitinating enzyme with an established dual role as an inhibitor and an activator of proteolysis, maintaining protein homeostasis. Usp14-deficient mice show a phenotype similar to lethal human multiple congenital contractures phenotypes, with callosal anomalies, muscle wasting, and early lethality, attributed to neuromuscular junction defects due to decreased monomeric ubiquitin pool. RT-qPCR experiment in an unaffected heterozygote revealed that mutant USP14 was expressed, indicating that abnormal transcript escapes nonsense-mediated mRNA decay. PMID 38469793: biallelic USP14 variants in four individuals from three unrelated families: one fetus, a newborn with a syndromic NDD, and two siblings affected by a progressive neurological disease. Specifically, the two siblings from the latter family carried two compound heterozygous variants c.8T>C p.(Leu3Pro) and c.988C>T p.(Arg330*), while the fetus had a homozygous frameshift c.899_902del p.(Lys300Serfs*24) variant and the newborn patient harbored a homozygous frameshift c.233_236del p.(Leu78Glnfs*11) variant. The fetus and the newborn had extensive brain malformations. Sources: Literature |
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| Mendeliome v1.1626 | PSMB10 | Zornitza Stark edited their review of gene: PSMB10: Added comment: PMID 38503300: Six individuals with three de novo missense variants. Individuals presented with T-B-NK± severe combined immunodeficiency (SCID) and clinical features suggestive of Omenn syndrome, including diarrhea, alopecia, and desquamating erythematous rash.; Changed publications: 31783057, 37600812, 38503300; Changed phenotypes: Proteasome-associated autoinflammatory syndrome 5, MIM# 619175, Severe combined immunodeficiency, MONDO:0015974, PSMB10-related; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| Mendeliome v1.1587 | APOLD1 |
Lucy Spencer changed review comment from: PMID: 35638551 1 family with an atypical inherited bleeding disorder characterised by severe spontaneous bleeding episodes in childhood and microcirculatory problems. 4 affected individuals across 2 generations have R49*in APOLD1, another affected individual from a third generation was not able to be sequenced = 4 meiosis. 4 unaffected individuals did not have the variant. This gene has no NMD region, R49* would affect 82% of the protein. Paper is not using the MANE select transcript, alt p. in MANE select is R18* which affects 92% of the MANE select protein Interestingly R49* is created by a delins/2 missense in cis, 1 common R49Q and 1 rare R49W, some UNaffected family members just have the common missense without the other in cis. Immunofluorescence studies in patient platelets showed a 50% reduction of APOLD1 and disrupted cytoskeletal and junctional organization. Sources: Literature; to: PMID: 35638551 1 family with an atypical inherited bleeding disorder characterised by severe spontaneous bleeding episodes in childhood and microcirculatory problems. 4 affected individuals across 2 generations have R49*in APOLD1, another affected individual from a third generation was not able to be sequenced = 4 meiosis. 4 unaffected individuals did not have the variant. This gene has no NMD region, R49* would affect 82% of the protein. Paper is not using the MANE select transcript, alt p. in MANE select is R18* which affects 92% of the MANE select protein Interestingly R49* is created by a delins/2 missense in cis, 1 common R49Q and 1 rare R49W, some UNaffected family members just have the common missense without the other in cis. Immunofluorescence studies in patient platelets showed a 50% reduction of APOLD1 and disrupted cytoskeletal and junctional organization. SiRNA silencing of APOLD1 in HBDEC cells resulted in altered cell shape and size, and were associated with endothelial cell junction dismantling. These cells were also almost devoid of VWF. Sources: Literature |
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| Mendeliome v1.1587 | ZSCAN10 |
Rylee Peters gene: ZSCAN10 was added gene: ZSCAN10 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ZSCAN10 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ZSCAN10 were set to PMID: 38386308 Phenotypes for gene: ZSCAN10 were set to syndromic disease MONDO:0002254 Review for gene: ZSCAN10 was set to GREEN Added comment: Bi-allelic ZSCAN10 loss-of-function variants were identified in seven affected individuals from five unrelated families with syndromic neurodevelopmental disorder. Highly consistent phenotypic features include global developmental delay, behavioural abnormalities, and variable facial asymmetry with outer and inner ear malformations leading to profound SNHL. Facial asymmetry was recapitulated in the Zscan10 mouse model along with inner and outer ear malformations. Sources: Literature |
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| Mendeliome v1.1586 | SLC12A9 |
Zornitza Stark gene: SLC12A9 was added gene: SLC12A9 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SLC12A9 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SLC12A9 were set to 38334070 Phenotypes for gene: SLC12A9 were set to Neurodevelopmental disorder, MONDO:0700092, SLC12A9-related Review for gene: SLC12A9 was set to GREEN Added comment: Three individuals from unrelated families with bi-allelic LoF variants and a neurodevelopment phenotype, skeletal and brain abnormalities, hypopigmentation, dysmorphic features. Sources: Literature |
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| Mendeliome v1.1585 | SNF8 |
Chern Lim gene: SNF8 was added gene: SNF8 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SNF8 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SNF8 were set to 38423010 Phenotypes for gene: SNF8 were set to Neurodevelopmental disorder (MONDO:0700092), SNF8-related Review for gene: SNF8 was set to GREEN gene: SNF8 was marked as current diagnostic Added comment: PMID: 38423010 - Nine individuals from six families presenting with a spectrum of neurodevelopmental/neurodegenerative features caused by bi-allelic variants in SNF8. In total, three putative LoF variants and four missense variants were identified. - The phenotypic spectrum included four individuals with severe developmental and epileptic encephalopathy, massive reduction of white matter, hypo-/aplasia of the corpus callosum, neurodevelopmental arrest, and early death. A second cohort shows a milder phenotype with intellectual disability, childhood-onset optic atrophy, or ataxia. All mildly affected individuals shared the same hypomorphic variant, c.304G>A (p.Val102Ile) as compound heterozygous. - Functional studies using fibroblasts derived from patients and zebrafish model showed LoF is the disease mech. Sources: Literature |
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| 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 |
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| Mendeliome v1.1584 | APOLD1 |
Lucy Spencer gene: APOLD1 was added gene: APOLD1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: APOLD1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: APOLD1 were set to 35638551 Phenotypes for gene: APOLD1 were set to Bleeding disorder, vascular-type (MIM#620715) Review for gene: APOLD1 was set to AMBER Added comment: PMID: 35638551 1 family with an atypical inherited bleeding disorder characterised by severe spontaneous bleeding episodes in childhood and microcirculatory problems. 4 affected individuals across 2 generations have R49*in APOLD1, another affected individual from a third generation was not able to be sequenced = 4 meiosis. 4 unaffected individuals did not have the variant. This gene has no NMD region, R49* would affect 82% of the protein. Paper is not using the MANE select transcript, alt p. in MANE select is R18* which affects 92% of the MANE select protein Interestingly R49* is created by a delins/2 missense in cis, 1 common R49Q and 1 rare R49W, some UNaffected family members just have the common missense without the other in cis. Immunofluorescence studies in patient platelets showed a 50% reduction of APOLD1 and disrupted cytoskeletal and junctional organization. Sources: Literature |
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| 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 |
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| 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 |
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| 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 v1.1566 | APPL1 | Bryony Thompson edited their review of gene: APPL1: Added comment: PMID: 36208030 - a study using the UK Biobank comparing individuals with and without diabetes found LoF variants in APPL1 were ‘Inconsistent’ with being high penetrant for diabetes (failed both statistical criteria - enrichment & comparison to maximum credible allele frequency). Refutes previous study.; Changed rating: RED; Changed publications: 26073777, 36208030 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1564 | KLF14 |
Hali Van Niel changed review comment from: PMID: 33389382 Case-sibling study of 92 healthy individuals and 92 type 2 diabetes patients found KLF14 SNPs associated with susceptibility to type 2 diabetes PMID: 35081256 Large scale association analysis found type 2 susceptibility of KLF14 SNPS appearing to be driven by reduced insulin sensitivity PMID: 24486580 Global Meta-analysis found risk allele SNP associated with increased risk of type 2 diabetes (in global population) Sources: Other; to: Cannot find any evidence of association with mendelian disease PMID: 33389382 Case-sibling study of 92 healthy individuals and 92 type 2 diabetes patients found KLF14 SNPs associated with susceptibility to type 2 diabetes PMID: 35081256 Large scale association analysis found type 2 susceptibility of KLF14 SNPS appearing to be driven by reduced insulin sensitivity PMID: 24486580 Global Meta-analysis found risk allele SNP associated with increased risk of type 2 diabetes (in global population) Sources: Other |
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| Mendeliome v1.1564 | KLF14 |
Hali Van Niel gene: KLF14 was added gene: KLF14 was added to Mendeliome. Sources: Other Mode of inheritance for gene: KLF14 was set to Unknown Publications for gene: KLF14 were set to 33389382; 35081256; 24486580 Phenotypes for gene: KLF14 were set to diabetes mellitus MONDO:0005015 Review for gene: KLF14 was set to RED Added comment: PMID: 33389382 Case-sibling study of 92 healthy individuals and 92 type 2 diabetes patients found KLF14 SNPs associated with susceptibility to type 2 diabetes PMID: 35081256 Large scale association analysis found type 2 susceptibility of KLF14 SNPS appearing to be driven by reduced insulin sensitivity PMID: 24486580 Global Meta-analysis found risk allele SNP associated with increased risk of type 2 diabetes (in global population) Sources: Other |
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| 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 |
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| 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 |
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| Mendeliome v1.1536 | PRIMA1 |
Zornitza Stark gene: PRIMA1 was added gene: PRIMA1 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: PRIMA1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PRIMA1 were set to 26339676 Phenotypes for gene: PRIMA1 were set to Frontal Lobe Epilepsy MONDO:0002612 Review for gene: PRIMA1 was set to RED Added comment: - 2/3 siblings from unaffected parents in PMID: 26339676 were diagnosed with nocturnal frontal lobe epilepsy, which was confirmed by EEG. The affected siblings were homozygous for the c.93+2T>C variant canonical splice site variant. This variant was demonstrated by mini-gene assay to skip exon 2 of PRIMA1. Overall 1 family, 2 individuals with epilepsy and high impact variants in PRIMA1. Sources: Expert list |
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| Mendeliome v1.1513 | NUP160 |
Melanie Marty changed review comment from: PMID: 30910934 1 x patient with familial steroid-resistant nephrotic syndrome (SRNS) and FSGS carried novel compound-heterozygous variants in NUP160 (R1173X and E803K). Silencing of Drosophila NUP160 specifically in nephrocytes (fly renal cells) led to functional abnormalities, reduced cell size and nuclear volume, and disorganized nuclear membrane structure. These defects were completely rescued by the expression of the wild-type human NUP160 gene in nephrocytes. PMID: 30179222 1 x family (2 sibs) with compound het variants E803K and Arg910X. 1 Sib had SRNS and FSGS, the other had proteinuria. PMID: 33456446 1 x family (2 sibs) with steroid-resistant nephrotic syndrome and chronic kidney disease. Homozygous for NUP160 c.1179+5G>A, confirmed by RT-PCR to cause abnormal splicing [r.1102_1179del;p.(Phe368_Gln393del)]. These individuals also had additional neurological features of intellectual disability and epilepsy. PMID: 38224683 Generated a podocyte-specific Nup160 knockout (Nup160podKO) mouse mode using CRISPR/Cas9 and Cre/loxP technologies. They showed that Nup160podKO mice develop typical signs of NS.; to: PMID: 30910934 1 x patient with familial steroid-resistant nephrotic syndrome (SRNS) and FSGS carried novel compound-heterozygous variants in NUP160 (R1173X and E803K). Silencing of Drosophila NUP160 specifically in nephrocytes (fly renal cells) led to functional abnormalities, reduced cell size and nuclear volume, and disorganized nuclear membrane structure. These defects were completely rescued by the expression of the wild-type human NUP160 gene in nephrocytes. PMID: 30179222 1 x family (2 sibs) with compound het variants E803K and Arg910X. 1 Sib had SRNS and FSGS, the other had proteinuria. PMID: 33456446 1 x family (2 sibs) with SRNS and chronic kidney disease. Homozygous for NUP160 c.1179+5G>A, confirmed by RT-PCR to cause abnormal splicing [r.1102_1179del;p.(Phe368_Gln393del)]. These individuals also had additional neurological features of intellectual disability and epilepsy. PMID: 38224683 Generated a podocyte-specific Nup160 knockout (Nup160podKO) mouse model using CRISPR/Cas9 and Cre/loxP technologies. They showed that Nup160podKO mice develop typical signs of NS. |
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| Mendeliome v1.1511 | MEI4 |
Lisa Norbart changed review comment from: PMID: 38252283 - 5x compound heterozygous missense variants and 1x homozygous missense variant seen in five individuals across 4 unrelated families affected with female infertility characterised by preimplantation embryonic arrest. Includes one family with two affected sisters with the same compound heterozygous variants. 2/4 families showed inheritance, parental data not available for other two families. Homozygous variant in the consanguineous family appears with a more severe phenotype. In vitro evidence shows variants reduced the interactions between MEI4 and DNA, but no effects on protein levels. In vivo knock-out mouse model showed female mice were infertile, characterised by developmental defects during oogenesis. Sources: Literature; to: PMID: 38252283 - 5x compound heterozygous missense variants and 1x homozygous missense variant seen in five individuals across 4 unrelated families affected with female infertility characterised by preimplantation embryonic arrest. Includes one family with two affected sisters with the same compound heterozygous variants. 2/4 families showed inheritance, parental data not available for other two families. Homozygous variant in the consanguineous family appears with a more severe phenotype. In vitro evidence shows variants reduced the interactions between MEI4 and DNA, but no effects on protein levels. In vivo knock-out mouse model showed female mice were infertile, characterised by developmental defects during oogenesis. Sources: Literature |
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| Mendeliome v1.1510 | RHOXF1 |
Chris Ciotta gene: RHOXF1 was added gene: RHOXF1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RHOXF1 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females Publications for gene: RHOXF1 were set to PMID: 38258527 Phenotypes for gene: RHOXF1 were set to Spermatogenic failure, MONDO:0004983, RHOXF1-related Review for gene: RHOXF1 was set to AMBER Added comment: In a cohort of 1,201 men from China with oligozoospermia and azoospermia, hemizygous RHOXF1 variants were identified in 4 unrelated individuals. Three of these variants were missense variants (V130M, A91V & A156V), all were absent from gnomAD (including version 4) and had deleterious in silicos. The one other variant was a nonsense variant (R160X) which is predicted to escape NMD and truncate the protein. This is seen in gnomAD version 4 in 1 heterozygote female, and absent in other versions. In vitro functional evidence for these variants was provided, the V130M, A156V and R160X mutants demonstrated impaired protein localisation with an increase in the protein in the cytoplasm and impaired nuclear entry, the A91V mutant protein did not share these localisation defects. Further, The V130M mutant protein decreased DMRT1 promotor activity, DMRT1 is considered essential for testicular development and spermatogenesis. However, the R160X variant demonstrated increased activation, three times higher than WT. The two other missense variants had no effect. Sources: Literature |
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| Mendeliome v1.1507 | MEI4 |
Lisa Norbart gene: MEI4 was added gene: MEI4 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MEI4 was set to BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal Publications for gene: MEI4 were set to 38252283 Phenotypes for gene: MEI4 were set to Infertility disorder, MONDO:0005047, MEI4-related Review for gene: MEI4 was set to GREEN Added comment: PMID: 38252283 - 5x compound heterozygous missense variants and 1x homozygous missense variant seen in five individuals across 4 unrelated families affected with female infertility characterised by preimplantation embryonic arrest. Includes one family with two affected sisters with the same compound heterozygous variants. 2/4 families showed inheritance, parental data not available for other two families. Homozygous variant in the consanguineous family appears with a more severe phenotype. In vitro evidence shows variants reduced the interactions between MEI4 and DNA, but no effects on protein levels. In vivo knock-out mouse model showed female mice were infertile, characterised by developmental defects during oogenesis. Sources: Literature |
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| Mendeliome v1.1502 | SAMD7 |
Paul De Fazio gene: SAMD7 was added gene: SAMD7 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SAMD7 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SAMD7 were set to 38272031 Phenotypes for gene: SAMD7 were set to Macular dystrophy, retinal, SAMD7-related MONDO:0031166 Review for gene: SAMD7 was set to GREEN gene: SAMD7 was marked as current diagnostic Added comment: Five biallelic variants were identified in eight individuals from six families with macular dystrophy with or without cone dysfunction. Three families were consanguineous. Mean age at first presentation was 34.8 years, range 14 to 51. Four variants affected splicing, while one missense variant impaired the repressive activity of SAMD7. All functional work was performed using in vitro assays. Sources: Literature |
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| Mendeliome v1.1477 | SEC61A1 | Zornitza Stark edited their review of gene: SEC61A1: Added comment: PMID 32325141: single individual with de novo missense and phenotype primarily characterised by severe neutropenia.; Changed publications: 27392076, 32325141, 28782633, 32325141 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1468 | PPFIA3 |
Zornitza Stark gene: PPFIA3 was added gene: PPFIA3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PPFIA3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: PPFIA3 were set to 37034625 Phenotypes for gene: PPFIA3 were set to Neurodevelopmental disorder, MONDO:0700092, PPFIA3-related Review for gene: PPFIA3 was set to GREEN Added comment: 19 individuals with mono-allelic variants presenting with features including developmental delay, intellectual disability, hypotonia, micro/macrocephaly, autism, and epilepsy. One individual with compound het variants: insufficient evidence for bi-allelic variants causing disease. Sources: Literature |
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| Mendeliome v1.1457 | SPIN4 |
Belinda Chong gene: SPIN4 was added gene: SPIN4 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SPIN4 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: SPIN4 were set to 36927955 Phenotypes for gene: SPIN4 were set to Lui-Jee-Baron syndrome MIM#301114 Review for gene: SPIN4 was set to AMBER Added comment: PMID 36927955 * Single family, hemizygous frameshift variant (NM_001012968.3, c.312_313AGdel) identified in a male individual with generalized overgrowth of prenatal onset, variant also present in the mother and grandmother (both had adult heights 2 SDS greater than their midparental heights). * In vitro shows loss of function and mice studies recapitulated the human phenotype with generalized overgrowth, including increased longitudinal bone growth. Sources: Literature Sources: Literature |
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| Mendeliome v1.1457 | GTPBP1 |
Lucy Spencer gene: GTPBP1 was added gene: GTPBP1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: GTPBP1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: GTPBP1 were set to 38118446 Phenotypes for gene: GTPBP1 were set to Neurodevelopmental disorder (MONDO#0700092), GTPBP1-related Review for gene: GTPBP1 was set to GREEN Added comment: PMID: 38118446- Cohort of individuals with variants in GTPBP2 (which has been previously described) and GTPBP1 (new) who have an identical neurodevelopmental syndrome. 4 homozygous individuals from 3 consanguineous families. 2 families have different NMD-predicted nonsense variants and the third has a missense, all are absent from gnomad v4. The shared cardinal features of GTPBP1 and 2 related disease are microcephaly, profound neurodevelopmental impairment, and distinctive craniofacial features. Epilepsy was present in 10 of 20 individuals but its not clear if those individuals had GTPBP1 or 2 variants. Sources: Literature |
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| 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 |
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| 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 v1.1436 | MAP1LC3B2 |
Zornitza Stark gene: MAP1LC3B2 was added gene: MAP1LC3B2 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: MAP1LC3B2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: MAP1LC3B2 were set to 35748970; 33310865 Phenotypes for gene: MAP1LC3B2 were set to Hereditary susceptibility to infection, MONDO:0015979, MAP1LC3B2 -related; Mollaret’s meningitis (recurrent lymphocytic meningitis) due to HSV2 Review for gene: MAP1LC3B2 was set to RED Added comment: PMID: 35748970 Affects CNS (resident cells and fibroblasts) Impaired autophagy induction after HSV2 infection - increased viral replication and apoptosis of patient fibroblasts. PMID: 33310865 one affected individual with heterozygous variant in MAP1LC3B2 (p.L109M) Sources: Expert Review |
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| 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 |
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| 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 |
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| Mendeliome v1.1415 | RAB1A |
Zornitza Stark gene: RAB1A was added gene: RAB1A was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RAB1A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: RAB1A were set to 37924809 Phenotypes for gene: RAB1A were set to neurodevelopmental disorder MONDO:0700092, RAB1A-related Review for gene: RAB1A was set to AMBER Added comment: Four families and 5 individuals, 2/5 have speech delay and 4/5 have motor delay. Anxiety in 3/5 and autism in 2/5. Microcephaly in only one individual, spastic paraplegia observed in 2 individuals from one family. In 2 families variants were inherited from an affected parent. Sources: Literature |
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| 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 |
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| Mendeliome v1.1403 | RNF213 | Seb Lunke changed review comment from: 14 individuals from 13 unrelated families with (de novo) missensevariants in RNF213 clustering within or around the RING domain. Individuals presented either with early-onset stroke (n=11) or with Leigh syndrome (n=3). No genotype-phenotype correlation could be established. Common features included Global Developmental Delay and Seizures, increased serum lactate, ischemic stroke, Moyamoya phenomenon and carotid/cerebral artery stenosis. Onset of symptoms generally in the first 6 months of life.; to: 14 individuals from 13 unrelated families with (de novo) missensevariants in RNF213 clustering within or around the RING domain. Individuals presented either with early-onset stroke (n=11) or with Leigh syndrome like symptoms (n=3). No genotype-phenotype correlation could be established. Common features included Global Developmental Delay and Seizures, increased serum lactate, ischemic stroke, and carotid/cerebral artery stenosis. Onset of symptoms generally in the first 6 months of life. Moyamoya phenomenon was present in 10/13 individuals. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1400 | ACBD6 |
Lucy Spencer edited their review of gene: ACBD6: Added comment: PMID: 37951597 Much larger cohort with - 45 individuals from 28 families with a neurodevelopmental syndrome with complex and progressive movement disorder phenotype. 18 PTCs and splice, 1 missense 1 in frame insertion. Phenotypes: weight was >50th percentile in 20/34 patients, all mod-severe GDD, facial dysmorphism in 38/40, mild cerebellar ataxia 35/41, limb spasticity/hypertonia 31/41, gait abnormalities in 33/35.; Changed publications: 37951597 |
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| Mendeliome v1.1400 | PRPF19 |
Dean Phelan gene: PRPF19 was added gene: PRPF19 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PRPF19 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: PRPF19 were set to PMID: 37962958 Phenotypes for gene: PRPF19 were set to Neurodevelopmental disorder (MONDO:0700092), PRPF19-related Review for gene: PRPF19 was set to GREEN Added comment: PMID: 37962958 Six unrelated individuals with de novo variants. Five had speech language motor delay, four had formal diagnosis of autism, three hypotonia and one fetus with multiple congenital abnormalities. Sources: Literature |
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| Mendeliome v1.1396 | GRIA3 | Zornitza Stark edited their review of gene: GRIA3: Added comment: New manuscript describing ~40 individuals with variants in GRIA3, including affected females. Some variants demonstrated to be LoF and others GoF. LoF variants generally caused a milder phenotype.; Changed publications: 32977175, 17989220, 38038360; 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 v1.1390 | FA2H |
Zornitza Stark changed review comment from: Well established gene-disease association, both peripheral and central features (dystonia, dysarthria, cognitive impairment, and epilepsy), childhood-onset, progressive. Sources: Expert Review; to: Well established gene-disease association, both peripheral and central features (dystonia, dysarthria, cognitive impairment, and epilepsy), childhood-onset, progressive. PubMed: 31135052 – 19 patients from 16 families consistent with a complicated form of SPG. PubMed:18463364 – 7 individuals identified from a large consanguineous family with SPG. PubMed: 19068277 – 7 patients from 2 unrelated consanguineous middle eastern families PubMed: 20104589– Multiple affected individuals in an Omani family. Findings indicated that an abnormal hydroxylation of myelin galactocerebroside lipid components can lead to the progression of a severe phenotype. Sources: Expert Review |
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| 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 |
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| 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 v1.1364 | MCAT | Zornitza Stark edited their review of gene: MCAT: Added comment: Second individual reported in PMID 33918393; Changed publications: 33918393 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1362 | THOC6 |
Ling Sun changed review comment from: THOC6 homozygous or compound heterozygous variants are associated with Beaulieu-Boycott-Innes syndrome. Clinical spectrum is heterogenous, with major phenotype DD and ID (Note that this gene is already on the ID panel). Some are affected with structural cardiac anomalies, therefore not all individuals with BBIS have cardiac anomalies (hence, not a major phenotype). PMID 35426486: Two siblings with maternally inherited c.[298T>A;700G>T;824G>A], p.[(Trp100Arg);(Val234Leu);(Gly275Asp)] and paternally inherited c.977T>G, p.(Val326Gly) [compound het] PMID: 30476144: A boy with mat UPD homozygous c.(298T>A; 700G>C; 824G>C) A girl with maternally inherited c.(298T>A, 700G>C, 824G>A) and paternally inherited c.569G>A, p.(Gly190Glu) [compount het] PMID: 32282736: A boy with paternally inherited c.664T>C (p.Trp222Arg) and maternally inherited c.945+1 G>A [compound het]; to: THOC6 homozygous or compound heterozygous variants are associated with Beaulieu-Boycott-Innes syndrome. Clinical spectrum is heterogenous, with major phenotype DD and ID (Note that this gene is already on the ID panel). Some are affected with structural cardiac anomalies, therefore not all individuals with BBIS have cardiac anomalies (hence, not a major phenotype, eg. see https://databases.lovd.nl/shared/diseases/03390). PMID 35426486: Two siblings with maternally inherited c.[298T>A;700G>T;824G>A], p.[(Trp100Arg);(Val234Leu);(Gly275Asp)] and paternally inherited c.977T>G, p.(Val326Gly) [compound het] PMID: 30476144: A boy with mat UPD homozygous c.(298T>A; 700G>C; 824G>C) A girl with maternally inherited c.(298T>A, 700G>C, 824G>A) and paternally inherited c.569G>A, p.(Gly190Glu) [compount het] PMID: 32282736: A boy with paternally inherited c.664T>C (p.Trp222Arg) and maternally inherited c.945+1 G>A [compound het] |
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| Mendeliome v1.1362 | THOC6 |
Ling Sun changed review comment from: THOC6 homozygous or compound heterozygous variants are associated with Beaulieu-Boycott-Innes syndrome. Clinical spectrum is heterogenous, with major phenotype DD and ID (Note that this gene is already on the ID panel). Some are affected with structural cardiac anomalies, therefore not all individuals with BBIS have cardiac anomalies (hence, not a major phenotype). PMID 35426486: Two siblings with maternally inherited c.[298T>A;700G>T;824G>A], p.[(Trp100Arg);(Val234Leu);(Gly275Asp)] and paternally inherited c.977T>G, p.(Val326Gly) PMID: 30476144: A boy with mat UPD homozygous c.(298T>A; 700G>C; 824G>C) A girl with maternally inherited c.(298T>A, 700G>C, 824G>A) and paternally inherited c.569G>A, p.(Gly190Glu); to: THOC6 homozygous or compound heterozygous variants are associated with Beaulieu-Boycott-Innes syndrome. Clinical spectrum is heterogenous, with major phenotype DD and ID (Note that this gene is already on the ID panel). Some are affected with structural cardiac anomalies, therefore not all individuals with BBIS have cardiac anomalies (hence, not a major phenotype). PMID 35426486: Two siblings with maternally inherited c.[298T>A;700G>T;824G>A], p.[(Trp100Arg);(Val234Leu);(Gly275Asp)] and paternally inherited c.977T>G, p.(Val326Gly) [compound het] PMID: 30476144: A boy with mat UPD homozygous c.(298T>A; 700G>C; 824G>C) A girl with maternally inherited c.(298T>A, 700G>C, 824G>A) and paternally inherited c.569G>A, p.(Gly190Glu) [compount het] PMID: 32282736: A boy with paternally inherited c.664T>C (p.Trp222Arg) and maternally inherited c.945+1 G>A [compound het] |
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| Mendeliome v1.1362 | THOC6 |
Ling Sun changed review comment from: THOC6 homozygous or compound heterozygous variants are associated with Beaulieu-Boycott-Innes syndrome. Clinical spectrum is heterogenous, with major phenotype DD and ID (Note that this gene is already on the ID panel). Some are affected with structural cardiac anomalies (syndromic phenotype). PMID 35426486: Two siblings with maternally inherited c.[298T>A;700G>T;824G>A], p.[(Trp100Arg);(Val234Leu);(Gly275Asp)] and paternally inherited c.977T>G, p.(Val326Gly) PMID: 30476144: A boy with mat UPD homozygous c.(298T>A; 700G>C; 824G>C) A girl with maternally inherited c.(298T>A, 700G>C, 824G>A) and paternally inherited c.569G>A, p.(Gly190Glu); to: THOC6 homozygous or compound heterozygous variants are associated with Beaulieu-Boycott-Innes syndrome. Clinical spectrum is heterogenous, with major phenotype DD and ID (Note that this gene is already on the ID panel). Some are affected with structural cardiac anomalies, therefore not all individuals with BBIS have cardiac anomalies (hence, not a major phenotype). PMID 35426486: Two siblings with maternally inherited c.[298T>A;700G>T;824G>A], p.[(Trp100Arg);(Val234Leu);(Gly275Asp)] and paternally inherited c.977T>G, p.(Val326Gly) PMID: 30476144: A boy with mat UPD homozygous c.(298T>A; 700G>C; 824G>C) A girl with maternally inherited c.(298T>A, 700G>C, 824G>A) and paternally inherited c.569G>A, p.(Gly190Glu) |
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| Mendeliome v1.1338 | SGSM3 |
Dean Phelan gene: SGSM3 was added gene: SGSM3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SGSM3 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SGSM3 were set to PMID: 37833060 Phenotypes for gene: SGSM3 were set to Neurodevelopmental disorder (MONDO:0700092), SGSM3-related Review for gene: SGSM3 was set to AMBER Added comment: PMID: 37833060 - 13 patients from 8 families of Ashkenazi Jewish origin all had the same homozygous frameshift variant (c.981dup). Predicted to cause NMD. The variant co-segregated with disease in all available family members. The affected individuals displayed mild global developmental delay and mild to moderate intellectual disability. Additional prevalent phenotypes observed included hypotonia, behavioural challenges and short stature. Considered a founder variant (1 in 52 Ashkenazi Jews carry the variant). Also present in other populations but no homozygotes in gnomAD. Sources: Literature |
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| Mendeliome v1.1335 | AGPAT3 |
Ee Ming Wong gene: AGPAT3 was added gene: AGPAT3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: AGPAT3 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: AGPAT3 were set to 37821758 Phenotypes for gene: AGPAT3 were set to Neurodevelopmental disorder (MONDO#0700092), AGPAT3-related Review for gene: AGPAT3 was set to GREEN gene: AGPAT3 was marked as current diagnostic Added comment: - Single consanguineous family with four individuals with severe intellectual disability and retinitis pigmentosa - All affected individuals were homozygous for a nonsense variant in AGPAT3, healthy unaffected individuals who were tested were heterozygous for the variant - Overexpression of mutant transcript revealed absence of AGPAT3 protein compared to WT transcript via Western blot analysis - KO AGPAT3 mouse demonstrated impaired neuronal migration Sources: Literature |
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| Mendeliome v1.1330 | MIEF1 |
Lucy Spencer gene: MIEF1 was added gene: MIEF1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MIEF1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: MIEF1 were set to 33632269 Phenotypes for gene: MIEF1 were set to Optic atrophy 14 (MIM#620550) Review for gene: MIEF1 was set to AMBER Added comment: PMID: 33632269 Inherited optic neuropathies cohort from france with nothing found in OPA1, OPA3 and WFS1 or mtDNA. 2 individuals (55 and 47yo) found to have missense variant in MIEF1, p.Arg146Trp has 35 hets 0 homs in gnomad, p.Tyr240Asn is absent. Both have non-syndromic late onset inherited optic neuropathies characterized by initial loss of peripheral visual fields. Functional studies in HeLa cells- both missense localised to the mitochondria and formed oligomers similar to WT. MIEF1 normally regulates mitochondrial fission dynamics and causes an increase in mitochondrial fusion events, however both missense variants caused a significantly decreased mitochondrial fusion events. Sources: Literature |
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| Mendeliome v1.1327 | AXIN1 |
Zornitza Stark edited their review of gene: AXIN1: Added comment: PMID: 37582359 - four families (7 individuals) with three homozygous truncating variants. - all variant shown to result in reduced protein, though 1/3 would be NMD predicted - Probands had macrocephaly (4/6), GDD (3/7), hip dysplasia (5/6), cardiac anomalies eg. VSD/ASD (3/7), cranial hyperostosis and vertebral endplate sclerosis; Changed rating: GREEN; Changed publications: 37582359; Changed phenotypes: Craniometadiaphyseal osteosclerosis with hip dysplasia, MIM# 620558; Changed mode of inheritance: BIALLELIC, autosomal or pseudoautosomal |
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| 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 |
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| Mendeliome v1.1318 | ZFHX3 | Zornitza Stark edited their review of gene: ZFHX3: Added comment: 41 individuals with protein truncating variants (PTVs) or (partial) deletions of ZFHX3. Presentations included (mild) ID and/or behavioural problems, postnatal growth retardation, feeding difficulties, dysmorphism (rarely cleft palate). Nuclear abundance of ZFHX3 increases during human brain development and neuronal differentiation in neural stem cells and SH-SY5Y cells, ZFHX3 interacts with the chromatin remodelling BRG1/Brm-associated factor complex and the cleavage and polyadenylation complex. ZFHX3 haploinsufficiency associates with a specific DNA methylation profile in leukocyte-derived DNA, and participates in chromatin remodelling and mRNA processing.; Changed publications: 37292950; Changed phenotypes: Neurodevelopmental disorder, MONDO:0700092, ZFHX3-related | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1300 | IL23R | Zornitza Stark edited their review of gene: IL23R: Added comment: PMID 36763636: Six individuals from four unrelated Iranian kindreds with AR complete IL-23R deficiency presenting MSMD with complete penetrance. Also some patients with susceptibility to CMC with incomplete penetrance.; Changed rating: GREEN; Changed publications: 30578351, 35829840, 36763636; Changed phenotypes: Immunodeficiency disease, MONDO:0021094, Inherited susceptibility to mycobacterial disease, MONDO:0019146, IL23R-related | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 v1.1283 | 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 |
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| Mendeliome v1.1254 | CFAP20 |
Sarah Pantaleo gene: CFAP20 was added gene: CFAP20 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CFAP20 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CFAP20 were set to PMID:36329026 Phenotypes for gene: CFAP20 were set to Retinitis pigmentosa (MONDO:0019200) Review for gene: CFAP20 was set to GREEN Added comment: CFAP20 is a ciliopathy candidate. Demonstrate in zebrafish that cfap20 is required for motile cilia function, and in C. elegans, CFAP-20 maintains the structural integrity of non-motile cilia inner junctions, influencing sensory-dependent signalling and development. Human patients and zebrafish with CFAP20 mutations both exhibit retinal dystrophy (retinitis pigments). Hence, CFAP20 functions within a structural./functional hub centred on the inner junction that is shared between motile and non-motile cilia, and is distinct from other ciliopathy-associaetd domains or macromolecular complexes. Describe 8 individuals from 4 independent families with damaging biallelic variants (homozygous or compound heterozygous) in CFAP20 that segregate with retinal dystrophy. All variants cluster to one side of the protein, with two of the residues directly contacting alpha-tubullin. Family 1 - consanguineous set of 3 siblings from Sudan, homozygous for CFAP20 c.305G>A; p.Arg102His (they also had a homozygous variant in DYNC1LI2 however CFAP20 was considered the better candidate. Family 2 - 3 siblings from Spain, 2 with retinal dystrophy, 1 genetically tested and has c.337C>T; p.(Arg113Trp) and c.397delC; p.(Gln133Serfs*5) Family 3 - single affected family member compound het for c.164+1G>A and c.457A>G; p.(Arg153Gly). Family 4 - 3 affected siblings with generalised retinopathy and variable neurological deficits with c.164+1G>A and c.257G>A; p.(Tyr86Cys) For all families, no individuals had signs of polycystic kidney disease; however, not all individuals had kidney imaging. Visual defecit phenotype presented between adolescence and adulthood (17-56 years old). Used HEK293T cell expression studies to demonstrate a statistically significant decline of mutated CFAP20 protein levels (with the exception of p.Arg102His). To test the specific variants, they used the C.elegans orthologues. Sources: Literature |
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| 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 |
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| Mendeliome v1.1251 | COG3 |
Daniel Flanagan gene: COG3 was added gene: COG3 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: COG3 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: COG3 were set to PMID: 37711075 Phenotypes for gene: COG3 were set to Neurodevelopmental disorder (MONDO#0700092), COG3-related Review for gene: COG3 was set to AMBER Added comment: Two COG3 homozygous missense variants in four individuals from two unrelated consanguineous families. Clinical phenotypes of affected individuals include global developmental delay, severe intellectual disability, microcephaly, epilepsy, facial dysmorphism, and variable neurological findings. Sources: Expert list |
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| Mendeliome v1.1249 | MAST4 |
Ain Roesley gene: MAST4 was added gene: MAST4 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MAST4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: MAST4 were set to 36910266; 33057194 Phenotypes for gene: MAST4 were set to neurodevelopmental disorder MONDO:0700092, MAST4-related Penetrance for gene: MAST4 were set to Complete Review for gene: MAST4 was set to GREEN gene: MAST4 was marked as current diagnostic Added comment: PMID: 36910266 - 4 families with 4 affecteds, all de novo missense 2x borderline microcephaly (-2SD) 2x gross motor delay 2x dysmorphism 4x ID + seizures 3x abnormal brain MRI findings PMID: 33057194 - 5x de novos, 4x missense + 1x PTC Cohort of individuals with severe developmental disorder individual phenotypic information not provided Recurrent variants are Thr1471Ile (3x) and Ser1181Phe) Sources: Literature |
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| 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 |
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| Mendeliome v1.1156 | APOO |
Zornitza Stark edited their review of gene: APOO: Added comment: PMID: 37649161 1 family, 2 individuals (male & female) with same NMD variant c.532G>T (p.E178*), maternally inherited (mother unaffected). Both died before 18 months of age with partial agenesis of the corpus callosum, bilateral congenital cataract, hypothyroidism, and severe immune deficiencies. Other phenotypes included partial syndactyly of the 2nd and 3rd toes, wrinkled palm, and sole skin. Functional studies included site directed mutagenesis. This mutation resulted in a highly unstable and degradation prone MIC26 protein, yet the remaining minute amounts of mutant MIC26 correctly localized to mitochondria and interacted physically with other MICOS subunits. MIC26 KO cells expressing MIC26 harboring the respective APOO/MIC26 mutation showed mitochondria with perturbed cristae architecture and fragmented morphology resembling MIC26 KO cells.; Changed publications: 37649161; Changed phenotypes: Mitochondrial disease, MONDO:0044970, APOO-related, Developmental delay, Lactic acidosis, Muscle weakness, Hypotonia, Repetitive infections, Cognitive impairment, Autistic behaviour |
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| Mendeliome v1.1156 | RAB5C |
Rylee Peters changed review comment from: 12 individuals with nine different heterozygous de novo variants in RAB5C. 9 with missense, 1 inframe duplication and 2 stop-gains (clinically more severe). All has mild-severe ID, 4/12 have epilepsy, 6/12 have macrocephaly (more than 3 SD). Sources: Literature; to: 12 individuals with nine different heterozygous de novo variants in RAB5C. 9 with missense, 1 inframe duplication and 2 stop-gains (clinically more severe). All have mild-severe ID, 4/12 have epilepsy, 6/12 have macrocephaly (more than 3 SD). Sources: Literature |
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| Mendeliome v1.1155 | COL4A3BP |
Ee Ming Wong changed review comment from: - Thirty-one unrelated individuals with twenty-two distinct missense variants. The majority of variants were de novo. - Several variants transfected into HeLa cells demonstrated gain of CERT activity - CERT gain of function in Drosophila melanogaster led to head and brain size defects and impaired locomotor activity, which was corrected by pharmacological inhibition of CERT; to: - current HGNC symbol: CERT1 - Thirty-one unrelated individuals with twenty-two distinct missense variants. The majority of variants were de novo. - Several variants transfected into HeLa cells demonstrated gain of CERT activity - CERT gain of function in Drosophila melanogaster led to head and brain size defects and impaired locomotor activity, which was corrected by pharmacological inhibition of CERT |
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| Mendeliome v1.1152 | RAB5C |
Rylee Peters gene: RAB5C was added gene: RAB5C was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RAB5C was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: RAB5C were set to PMID: 37552066 Phenotypes for gene: RAB5C were set to Neurodevelopmental disorder MONDO:0700092, RAB5C-related Penetrance for gene: RAB5C were set to Complete Review for gene: RAB5C was set to GREEN gene: RAB5C was marked as current diagnostic Added comment: 12 individuals with nine different heterozygous de novo variants in RAB5C. 9 with missense, 1 inframe duplication and 2 stop-gains (clinically more severe). All has mild-severe ID, 4/12 have epilepsy, 6/12 have macrocephaly (more than 3 SD). Sources: Literature |
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| Mendeliome v1.1149 | PPP1R3F |
Andrew Fennell changed review comment from: Sources: Literature; to: 13 unrelated hemizygous individuals reported with functional evidence Sources: Literature |
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| 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 v1.1116 | 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 |
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| 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 |
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| Mendeliome v1.1103 | PSMC3 | Zornitza Stark edited their review of gene: PSMC3: Added comment: PMID:37256937 - 23 individuals with neurodevelopmental disorder was identified with 15 different de novo missense variants. Apart from one child (patient 2), all others had developmental delay characterised by speech delay (19/19) alone or with intellectual disability (16/18) and motor delay (15/19). In addition, structural modeling as well as proteomic and transcriptomic analyses of T cells derived from patients with PSMC3 variants implicated the PSMC3 variants in proteasome dysfunction through disruption of substrate translocation, induction of proteotoxic stress, and alterations in proteins controlling developmental and innate immune program.; Changed rating: GREEN; Changed publications: 32500975, 37256937; Changed phenotypes: neurodevelopmental disorder, MONDO:0700092, PSMC3-related, Deafness, cataract, impaired intellectual development, and polyneuropathy, MIM#619354; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 v1.1093 | 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 |
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| 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. |
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| 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 |
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| 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 |
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| Mendeliome v1.1074 | EZH1 |
Zornitza Stark gene: EZH1 was added gene: EZH1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: EZH1 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: EZH1 were set to 37433783 Phenotypes for gene: EZH1 were set to Neurodevelopmental disorder (MONDO:0700092), EZH1-related Review for gene: EZH1 was set to GREEN Added comment: PMID: 37433783 Variants were identified 19 individuals from 14 unrelated families, all sharing a clinical phenotype of a neurodevelopmental disorder manifested early in life as global motor, speech and cognitive delay leading to intellectual disability, usually non-progressive and co-occurring with dysmorphic facial features. Functional studies have shown that some missense EZH1 variants lead to GOF with increased methyltransferase activity and recessive variants impair EZH1 expression causing loss of function effects. Sources: Literature |
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| Mendeliome v1.1068 | MAMDC2 |
Belinda Chong gene: MAMDC2 was added gene: MAMDC2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MAMDC2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: MAMDC2 were set to 37503746 Phenotypes for gene: MAMDC2 were set to Muscular Dystrophy MONDO:0020121, MAMDC2-related Review for gene: MAMDC2 was set to AMBER Added comment: 17 individuals with an autosomal dominant muscular dystrophy belonging to two unrelated families in which different heterozygous truncating variants in the last exon of MAMDC2 co-segregate correctly with the disease. Sources: Literature |
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| Mendeliome v1.1064 | STAB1 |
Chern Lim gene: STAB1 was added gene: STAB1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: STAB1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: STAB1 were set to 37490907; 28052375 Phenotypes for gene: STAB1 were set to Iron metabolism disease (MONDO:0002279), STAB1-related Review for gene: STAB1 was set to GREEN gene: STAB1 was marked as current diagnostic Added comment: PMID: 37490907 - Biallelic variants identified in 10 individuals from 7 families with unexplained hyperferritinaemia without iron overload. All of them were in good health and had no dysmorphologies, psycho-motor development abnormalities, hearing or vision disorders, or other pathologies. - Homozygous/compound heterozygous variants: missense, frameshift, stopgain, inframe del of 3 AAs, one synonymous. - Samples from three of the patients from two families showed no immunoreactivity with anti-stabilin-1 compared to control liver where high signal was detected in the liver sinusoids (immunohistochemistry analysis). - Patients’ peripheral monocytes and monocyte-derived macrophages showed very little expression of stabilin-1 on CD14+ monocytes and macrophages compared to control subjects (flow cytometry analysis). - These families have also been published in PMID: 28052375. Sources: Literature |
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| Mendeliome v1.1063 | PTPA |
Ee Ming Wong changed review comment from: - Six individuals with later-onset Parkinson disease with no atypical features eg intellectual disability or early cognitive dysfunction - All were heterozygous for missense variants, a second hit not identified: authors suggests these are monoallelic cases - Three of the 5 missense variants have multiple heterozygotes in gnomAD, two of the missense variants have homozygotes in gnomAD, including one with 7 homozygotes.; to: - Six individuals with later-onset Parkinson disease with no atypical features eg intellectual disability or early cognitive dysfunction - All were heterozygous for missense variants, a second hit not identified: authors suggests these are monoallelic cases - Three of the 5 missense variants have multiple heterozygotes in gnomAD, two of the missense variants have homozygotes in gnomAD, including one with 7 homozygotes. |
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| 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 |
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| 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 |
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| Mendeliome v1.1049 | LAMA3 |
Sangavi Sivagnanasundram changed review comment from: Zhou et al. (2023) - Two heterozygous nonsense variants identified in two individuals of the same family [p.Arg1126Ter and p.Gln1507Ter] that was shown to segregate in the family with reduced penetrance. The authors hypothesize that function of laminin 𝛼3 is altered as it changes its ability to form heterotrimeric laminins. In vivo functional study using CRISPR/Cas-9 mediated LAMA3 knockout mice. Results of the functional assay showed development of tricuspid valve and right ventricle abnormalities in the presence of a homozygous LoF variant in LAMA3.; to: Novel gene-disease association Zhou et al. (2023) - Two heterozygous nonsense variants identified in two individuals of the same family [p.Arg1126Ter and p.Gln1507Ter] that was shown to segregate in the family with reduced penetrance. The authors hypothesize that function of laminin 𝛼3 is altered as it changes its ability to form heterotrimeric laminins. In vivo functional study using CRISPR/Cas-9 mediated LAMA3 knockout mice. Results of the functional assay showed development of tricuspid valve and right ventricle abnormalities in the presence of a homozygous LoF variant in LAMA3. |
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| Mendeliome v1.1049 | DUSP7 |
Sangavi Sivagnanasundram gene: DUSP7 was added gene: DUSP7 was added to Mendeliome. Sources: Other Mode of inheritance for gene: DUSP7 was set to Unknown Publications for gene: DUSP7 were set to https://doi.org/10.1155/2023/4348290 Phenotypes for gene: DUSP7 were set to Acute Myeloid Leukemia (AML) Review for gene: DUSP7 was set to RED Added comment: New gene with an association in AML prognosis. Gao (2023) - Recruitment from three public AML cohorts - GSE71014, TARGET-AML, and TCGA-AML. The study results suggest that with an DUSP7 may affect AML progression in individuals by affecting the recruitment of local immune cells. Sources: Other |
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| Mendeliome v1.1045 | TMEM63B |
Achchuthan Shanmugasundram changed review comment from: There is sufficient evidence for this gene to be included with green rating in intellectual disability and epilepsy panels. 17 unrelated individuals with severe early-onset developmental and epileptic encephalopathy (DEE), intellectual disability, and severe motor and cortical visual impairment were identified with ten distinct heterozygous variants inTMEM63B. The variants occurred de novo in 16/17 individuals for whom parental DNA was available and either missense or in-frame. All individuals had global developmental delay, with moderate-to-profound intellectual disability and severe motor impairment. All individuals had early-onset drug-resistant epilepsy, whose onset ranged from birth to 3 years but occurred within the first year in 14/17 (82%) and in the first month of life in 6/17 (35%). Sources: Literature; to: There is sufficient evidence for this gene to be included with green rating in 'Intellectual disability syndromic and non-syndromic' and 'Genetic epilepsy' panels. 17 unrelated individuals with severe early-onset developmental and epileptic encephalopathy (DEE), intellectual disability, and severe motor and cortical visual impairment were identified with ten distinct heterozygous variants inTMEM63B. The variants occurred de novo in 16/17 individuals for whom parental DNA was available and either missense or in-frame. All individuals had global developmental delay, with moderate-to-profound intellectual disability and severe motor impairment. All individuals had early-onset drug-resistant epilepsy, whose onset ranged from birth to 3 years but occurred within the first year in 14/17 (82%) and in the first month of life in 6/17 (35%). Sources: Literature |
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| Mendeliome v1.1045 | TMEM63B |
Achchuthan Shanmugasundram gene: TMEM63B was added gene: TMEM63B was added to Mendeliome. Sources: Literature Mode of inheritance for gene: TMEM63B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: TMEM63B were set to 37421948 Phenotypes for gene: TMEM63B were set to developmental and epileptic encephalopathy, MONDO:0100062 Review for gene: TMEM63B was set to GREEN Added comment: There is sufficient evidence for this gene to be included with green rating in intellectual disability and epilepsy panels. 17 unrelated individuals with severe early-onset developmental and epileptic encephalopathy (DEE), intellectual disability, and severe motor and cortical visual impairment were identified with ten distinct heterozygous variants inTMEM63B. The variants occurred de novo in 16/17 individuals for whom parental DNA was available and either missense or in-frame. All individuals had global developmental delay, with moderate-to-profound intellectual disability and severe motor impairment. All individuals had early-onset drug-resistant epilepsy, whose onset ranged from birth to 3 years but occurred within the first year in 14/17 (82%) and in the first month of life in 6/17 (35%). Sources: Literature |
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| 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 |
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| 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 |
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| Mendeliome v1.1009 | WBP4 |
Chirag Patel gene: WBP4 was added gene: WBP4 was added to Mendeliome. Sources: Other Mode of inheritance for gene: WBP4 was set to BIALLELIC, autosomal or pseudoautosomal Phenotypes for gene: WBP4 were set to Neurodevelopmental disorder Review for gene: WBP4 was set to GREEN gene: WBP4 was marked as current diagnostic Added comment: ESHG 2023: 11 individuals from 8 families with homozygous LOF variants in WBP4 gene (4 different variants). Presentation of severe DD and ID, hypotonia, abnormal outer ears, and varying congenital anomalies. WBP4 is spliceosome protein which binds/interacts with SNRNP200. In vivo and in vitro studies previously showed WBP4 enhances splicing and regulates alternative splicing. Patient fibroblasts showed loss of expression of WBP4. RNA sequencing analysis showed abnormal splicing patterns. Proposed spliceosomopathy. Sources: Other |
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| Mendeliome v1.1003 | INTS13 |
Chirag Patel gene: INTS13 was added gene: INTS13 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: INTS13 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: INTS13 were set to PMID: 36229431 Phenotypes for gene: INTS13 were set to Oral-facial-digital syndrome Review for gene: INTS13 was set to GREEN gene: INTS13 was marked as current diagnostic Added comment: 2 families with 4 affected individuals with Oral-facial-digital (OFD) phenotype. Homozygosity mapping and WES found 2 homozygous variants in INTS13 gene. This is a subunit of the Integrator complex, which associates with RNA Polymerase II and cleaves nascent RNA to modulate gene expression. Variants segregated with disease. Depletion of INTS13 disrupts ciliogenesis in human cultured cells and causes dysregulation of a broad collection of ciliary genes. Knockdown in Xenopus embryos leads to motile cilia anomalies. Sources: Literature |
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| Mendeliome v1.1001 | DCAF15 |
Chirag Patel gene: DCAF15 was added gene: DCAF15 was added to Mendeliome. Sources: Other Mode of inheritance for gene: DCAF15 was set to BIALLELIC, autosomal or pseudoautosomal Phenotypes for gene: DCAF15 were set to Cornelia de Lange syndrome Review for gene: DCAF15 was set to AMBER Added comment: ESHG 2023: 3 unrelated cases with CdLS (1 x TOP with MCA, 1 x death @20mths, 1 x living child) Features suggestive of CdLS - DD, microcephaly, CHD, dysmorphism, visual/hearing impairment. WES identified recurrent de novo variant (p.Ser470Phe) in DCAF15 gene. This mediates ubiquitination and degradation of target proteins, and interacts with cohesin complex members (SMC1/SMC3). Protein analysis from individuals showed increased accumulation of ubiquitination-modified proteins and SM3 (GOF mechanism). EpiSign analysis showed same DNA methylation pattern as other CdLS cases/genes. Zebrafish model showed reduced body length, reduced head size, reduced oligodendrocytes, heart defect, aberrant motor neurons, and abnormal response to visual/auditory stimuli. Sources: Other |
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| Mendeliome v1.992 | ANO1 | Zornitza Stark edited their review of gene: ANO1: Added comment: PMID 37253099: screening analysis of Moyamoya disease (MMD) cohort revealed 8 individuals with variants in the ANO1 gene. Two families had the same rare variant p.Met658Val. The ANO1 rare variants were assessed using patch-clamp recordings, and the majority of variants, including ANO1 p.Met658Val, displayed increased sensitivity to intracellular Ca2+. Patients harboring these gain-of-function ANO1 variants had classic features of MMD, but also had aneurysm, stenosis, and/or occlusion in the posterior circulation. Amber rating due to somewhat conflicting segregation and functional data presented.; Changed publications: 37253099; Changed phenotypes: Intestinal dysmotility syndrome, MIM# 620045, Moyamoya disease, MONDO:0016820, ANO1 related | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.991 | CYHR1 |
Chirag Patel gene: CYHR1 was added gene: CYHR1 was added to Mendeliome. Sources: Other Mode of inheritance for gene: CYHR1 was set to BIALLELIC, autosomal or pseudoautosomal Phenotypes for gene: CYHR1 were set to Neurodevelopmental disorder and microcephaly Review for gene: CYHR1 was set to AMBER Added comment: ESHG 2023: 5 individuals from 3 families with biallelic LOF variants in CYHR1 (aka ZTRAF1). Presentation with microcephaly, hypotonia, DD, and ID. Expression studies showed mislocalisation of CYHR1. Mutant fibroblasts showed increased lysosomal markers and upregulated lysosomal proteins, leading to impaired autophagy. Zebrafish KO however did not show a phenotype. Sources: Other |
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| 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 |
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| Mendeliome v1.985 | GPATCH11 |
Chirag Patel gene: GPATCH11 was added gene: GPATCH11 was added to Mendeliome. Sources: Other Mode of inheritance for gene: GPATCH11 was set to BIALLELIC, autosomal or pseudoautosomal Phenotypes for gene: GPATCH11 were set to Leber congenital amaurosis and developmental delay Review for gene: GPATCH11 was set to GREEN gene: GPATCH11 was marked as current diagnostic Added comment: ESHG 2023: 3 families with 8 individuals with leber congenital amaurosis, developmental delay, language disorder, and behavioural issues. GPATCH11 localises to nucleus and basal body of primary cilium (similar to other LCA genes). Biallelic variants found in GPATCH11 - 1 splice variant common to all 3 families (1 other variant in 3rd family). Splice variant leads to loss of exon 4 (mRNA studies). Mouse models showed i) abnormal rod/cone responses on ERG; ii) decreased outer nuclear layer in retina, and iii) abnormal associate/episodic memory Sources: Other |
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| Mendeliome v1.982 | KCNA3 |
Chirag Patel gene: KCNA3 was added gene: KCNA3 was added to Mendeliome. Sources: Other Mode of inheritance for gene: KCNA3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Phenotypes for gene: KCNA3 were set to Neurodevelopmental disorder Review for gene: KCNA3 was set to GREEN gene: KCNA3 was marked as current diagnostic Added comment: ESHG 2023: 10 individuals with de novo missense variants in KCNA3 (K+ channel) Variable electrophysiology studies of effect of variants (5 x LOF, 4 x GOF, 1 no change) Presentation: abnormal speech development (8/8), ID (6/8), epilepsy (5/8), and ASD (7/8) Sources: Other |
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| Mendeliome v1.974 | VGLL2 |
Chirag Patel gene: VGLL2 was added gene: VGLL2 was added to Mendeliome. Sources: Other Mode of inheritance for gene: VGLL2 was set to BIALLELIC, autosomal or pseudoautosomal Phenotypes for gene: VGLL2 were set to Syngnathia Review for gene: VGLL2 was set to GREEN gene: VGLL2 was marked as current diagnostic Added comment: ESHG 2023: 4 families/7 affected individuals with isolated unilateral/bilateral syngnathia biallelic truncating variants in VGLL2 But not phenotype in KO mouse or zebrafish models Sources: Other |
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| 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 |
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| 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 |
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| Mendeliome v1.962 | NUDCD2 |
Ee Ming Wong gene: NUDCD2 was added gene: NUDCD2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: NUDCD2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NUDCD2 were set to 37272762 Phenotypes for gene: NUDCD2 were set to Multiple congenital anomalies (MONDO:0019042), NUDCD2-related Penetrance for gene: NUDCD2 were set to unknown Review for gene: NUDCD2 was set to AMBER gene: NUDCD2 was marked as current diagnostic Added comment: - Two unrelated probands, each biallelic for two variants in NUDCD2 (total 3x LoF variants, 1x missense variant) - Immunoblotting of proteins extracted from the primary fibroblasts of one proband with 2x LoF variants demonstrated markedly reduced NUDCD2 levels compared to healthy individuals Sources: Literature |
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| 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 |
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| Mendeliome v1.958 | DCAF13 |
Michelle Torres gene: DCAF13 was added gene: DCAF13 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: DCAF13 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DCAF13 were set to 36797467 Phenotypes for gene: DCAF13 were set to Neuromuscular disease (MONDO#0019056), DCAF13-related Review for gene: DCAF13 was set to RED Added comment: One consanguineous family, 4x individuals homozygous NM_015420.7(DCAF13)c.907 G > A; p.(Asp303Asn) (3x via WES and 1x via Sanger) with a neuromuscular disorder characterized by a waddling gait, limb deformities, muscular weakness and facial palsy. In silicos analysis of mutant DCAF13 suggests that the amino acid change is deleterious and affects a ß-hairpin turn, within a WD40 domain of the protein which may decrease protein stability. Functional studies were not performed. Previously, a heterozygous variant in DCAF13 with or without a heterozygous missense variant in CCN3, was suggested to cause inherited cortical myoclonic tremor with epilepsy. In addition, a heterozygous DCAF13 variant has been associated with autism spectrum disorder. Sources: Literature |
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| Mendeliome v1.957 | ERI1 |
Elena Savva gene: ERI1 was added gene: ERI1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ERI1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ERI1 were set to 37352860 Phenotypes for gene: ERI1 were set to Spondyloepimetaphyseal dysplasia (MONDO#0100510), ERI1-related, Intellectual disability (MONDO#0001071), ERI1-related Review for gene: ERI1 was set to GREEN Added comment: PMID: 37352860 - 8 individuals from 7 unrelated families - Patients with biallelic missense show a MORE severe spondyloepimetaphyseal dysplasia, syndactyly, brachydactyly/clinodactyly/camptodactyly - Patients with biallelic null/whole gene deletion had mild ID and digit anomalies including brachydactyly/clinodactyly/camptodactyly - Patient chet for a missense and PTC variant has a blended phenotype with short stature, syndactyly, brachydactyly/clinodactyly/camptodactyly, mild ID and failure to thrive - Missense variants were functionally shown to not be able to rescue 5.8S rRNA processing in KO HeLa cells - K/O mice had neonatal lethality with growth defects, brachydactyly. Skeletal-specific K/O had mild platyspondyly, had more in keeping with patients with null variants than missense More severe phenotype hypothesised due to "exonuclease-dead proteins may compete for the target RNA molecules with other exonucleases that have functional redundancy with ERI1, staying bound to those RNA molecules" Sources: Literature |
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| Mendeliome v1.956 | RAB34 |
Sarah Pantaleo gene: RAB34 was added gene: RAB34 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RAB34 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: RAB34 were set to PMID: 37384395 Phenotypes for gene: RAB34 were set to Clefting; corpus callosum; short bones; hypertelorism; polydactyly; cardiac defects; anorectal anomalies Penetrance for gene: RAB34 were set to Complete Review for gene: RAB34 was set to GREEN Added comment: Oral-facial-digital syndromes (OFDS) are a group of clinically and genetically heterogenous disorders characterised by defects in the development of the face and oral cavity along with digit anomalies. Pathogenic variants in >20 genes encoding ciliary proteins have been found to cause OFDS. Identified by WES biallelic missense variants in a novel disease-causing ciliary gene RAB34 in four individuals from three unrelated families (aided by GeneMatcher). Affected individuals presented a novel form of OFDS accompanied by cardiac, cerebral, skeletal (eg. Shortening of long bones), and anorectal defects. RAB34 encodes a member of the Lab GTPase superfamily and was recently identified as a key mediator of ciliary membrane formation. Protein products of pathogenic variants clustered near the RAB34 C-terminus exhibit a strong loss of function. Onset is prenatal (multiple developmental defects including short femur, polydactyly, heart malformations, kidney malformations, brain malformations), resulting in medical termination for three probands. In the fourth, the only one alive at birth, proband born at 39+5 weeks, normal growth parameters after pregnancy with polyhydramnios, corpus callosum agenesis and polydactyly. Respiratory distress at birth. All four probands presented typical features of ciliopathy disorders, overlapping with oral, facial and digital abnormalities. All with homozygous missense variants. All absent in gnomAD (in homozygous state). Sanger sequencing confirmed mode of inheritance. Sources: Literature |
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| Mendeliome v1.956 | DRG1 |
Dean Phelan gene: DRG1 was added gene: DRG1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: DRG1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DRG1 were set to PMID: 37179472 Phenotypes for gene: DRG1 were set to Neurodevelopmental disorder (MONDO:0700092), DRG1-related Review for gene: DRG1 was set to GREEN Added comment: PMID: 37179472 - Biallelic variants were identified in four affected individuals from three distinct families with neurodevelopmental disorder with global developmental delay, primary microcephaly, short stature and craniofacial anomalies. Functional studies show the variants result in a loss of function. Sources: Literature |
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| 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 |
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| 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. |
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| 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_3184insT/ p.Tyr1062LeufsTer10) was reported with submucous cleft soft palate and two patients with ARID1B variants (c.4155_4156insA/ 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_3184insT/ p.Tyr1062LeufsTer10) was reported with submucous cleft soft palate and two patients (c.4155_4156insA/ p.Asn1386LysfsTer18 & c.2620+5G>A) were reported with bifid uvula. |
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| Mendeliome v1.932 | NOP10 | Zornitza Stark edited their review of gene: NOP10: Added comment: PMID 32139460: large multiplex family with 4 affected individuals segregating a heterozygous variant.; Changed rating: AMBER; Changed publications: 17507419, 32139460; Changed phenotypes: Dyskeratosis congenita, autosomal recessive 1, MIM#224230, Pulmonary fibrosis and/or bone marrow failure syndrome, telomere-related, 9, MIM# 620400; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| 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 |
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| Mendeliome v1.898 | POU3F2 |
Sarah Pantaleo gene: POU3F2 was added gene: POU3F2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: POU3F2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: POU3F2 were set to PMID: 37207645 Phenotypes for gene: POU3F2 were set to Autism spectrum disorder, NDD, and adolescent-onset obesity Penetrance for gene: POU3F2 were set to unknown Mode of pathogenicity for gene: POU3F2 was set to Other Review for gene: POU3F2 was set to GREEN Added comment: We associate ultra-rare variants in POU3F2, encoding a central nervous system transcription factor, with syndromic obesity and neurodevelopment delay in 12 individuals. Demonstrate variant pathogenicity through in vitro analysis. Used exome sequencing, GeneMatcher and Genomics England 100,000 Genomes Project rare disease database. Both truncating and missense variants in over 10 individuals sharing autism spectrum disorder, NDD, and adolescent-onset obesity (may have had other features eg. CAKUT in 2 individuals, diabetes in two) . Affected individuals presented with low-to-normal birth weight and infantile feeding difficulties but developed insulin resistance and hyperplasia during childhood. With the exception of an early truncating variant, the variants showed adequate nuclear translocation but overall disturbed DNA-binding ability and promoter activation. Variants absent from population and clinical databases. Almost all constituted putatively non-inherited de novo variants (8/10). Functional studies provide evidence for loss of function in eight and gain of function in one obesity-associated POU3F2 variant. One variant did not impact POU3F2-promoter activation, leaving the possibility for further path-mechanisms. Sources: Literature |
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| 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 |
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| 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 v1.879 | GATAD2A |
Bryony Thompson changed review comment from: https://doi.org/10.1016/j.xhgg.2023.100198 - Five unrelated individuals with a neurodevelopmental disorder identified with 3 missense & 2 LoF (4 de novo & 1 unknown inheritance). The shared clinical features with variable expressivity include global developmental delay (4/4), craniofacial dysmorphism (3/5), structural brain defects (2/3), musculoskeletal anomalies (3/5), vision/hearing defects (2/3), gastrointestinal/renal defects (2/3). Loss of function is the expected mechanism of disease. In vitro assays of one of the missense variants (p.Cys420Tyr) demonstrates disruption of GATAD2A integration with CHD3, CHD4, and CHD5 PMID: 17565372 - null mouse model is embryonic lethal. Sources: Literature; to: PMID: 37181331 - Five unrelated individuals with a neurodevelopmental disorder identified with 3 missense & 2 LoF (4 de novo & 1 unknown inheritance). The shared clinical features with variable expressivity include global developmental delay (4/4), craniofacial dysmorphism (3/5), structural brain defects (2/3), musculoskeletal anomalies (3/5), vision/hearing defects (2/3), gastrointestinal/renal defects (2/3). Loss of function is the expected mechanism of disease. In vitro assays of one of the missense variants (p.Cys420Tyr) demonstrates disruption of GATAD2A integration with CHD3, CHD4, and CHD5 PMID: 17565372 - null mouse model is embryonic lethal. Sources: Literature |
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| 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 |
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| 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 |
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| Mendeliome v1.853 | RARA |
Zornitza Stark commented on gene: RARA: PMID: 37086723 identified a recurrent, heterozygous de novo missense variant in the RARA gene - c.865G>A; (p.Gly289Arg) - in two unrelated individuals. The variant is absent from gnomAD, highly conserved, major grantham score (125) and is located in the hormone receptor domain (DECIPHER). Both individuals had severe craniosynostosis (sagittal or bicoronal). Other shared phenotypic features included: - Limb anomalies (rocker-bottom feet, bowing of the legs, and short upper/lower limbs) - Additional craniofacial manifestations(microtia, conductive hearing loss, ankyloglossia, esotropia, hypoplastic nasal bones, and oligodontia) - Other additional anomalies included renal dysplasia with cysts, tracheomalacia, pulmonary arterial hypertension, developmental delays, hypotonia, cryptorchidism, seizures and adrenal insufficiency. The authors postulate a gain of function mechanism. No functional studies provided. The gene encodes the retinoic acid receptor. Overlapping phenotypic features in these 2 affected individuals with retinoic acid embryopathy noted by the authors. |
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| Mendeliome v1.850 | RARA |
Zornitza Stark edited their review of gene: RARA: Added comment: PMID: 37086723 identified a recurrent, heterozygous de novo missense variant in the RARA gene - c.865G>A; (p.Gly289Arg) - in two unrelated individuals. The variant is absent from gnomAD, highly conserved, major grantham score (125) and is located in the hormone receptor domain (DECIPHER). Both individuals had severe craniosynostosis (sagittal or bicoronal). Other shared phenotypic features included: - Limb anomalies (rocker-bottom feet, bowing of the legs, and short upper/lower limbs) - Additional craniofacial manifestations(microtia, conductive hearing loss, ankyloglossia, esotropia, hypoplastic nasal bones, and oligodontia) - Other additional anomalies included renal dysplasia with cysts, tracheomalacia, pulmonary arterial hypertension, developmental delays, hypotonia, cryptorchidism, seizures and adrenal insufficiency. The authors postulate a gain of function mechanism. No functional studies provided. The gene encodes the retinoic acid receptor. Overlapping phenotypic features in these 2 affected individuals with retinoic acid embryopathy noted by the authors.; Changed rating: AMBER; Changed publications: 31343737, 37086723; Changed phenotypes: Craniosynostosis - MONDO:0015469, Syndromic chorioretinal coloboma; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted |
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| 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 |
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| Mendeliome v1.847 | PMEPA1 |
Hazel Phillimore changed review comment from: PMID: 36928819; Greene, D. et al. (2023) Nat Med. 29(3):679-688. A paper by Genomics England Research Consortium. Genetic association analysis of 77,539 genomes . Eight families with truncating variants affecting the same stretch of cytosines in this gene. In the 100KGP discovery cohort, in three families with Familial thoracic aortic aneurysm disease (FTAAD) of European ancestry, the variant found was an insertion of a cytosine within a seven-cytosine stretch in the last exon, predicted to cause p.(S209Qfs*3). This variant was also identified independently in eight affected members of three pedigrees of Japanese ancestry in a separate Japanese patient group. Also, this study found a deletion of one of those cytosines causing p.(S209Afs*61), in one individual or family. Also, there was one family in Belgium in which the affected members carried a 5-bp deletion in the same stretch of polycytosines inducing a frameshift p.(P207Qfs*3). Phenotypic analysis of the individuals suggest that the phenotype of these FTAAD individuals and families is more like Loeys-Dietz syndrome. Sources: Literature; to: PMID: 36928819; Greene, D. et al. (2023) Nat Med. 29(3):679-688. A paper by Genomics England Research Consortium. Genetic association analysis of 77,539 genomes . Eight families with truncating variants affecting the same stretch of cytosines in this gene. In the 100KGP discovery cohort, in three families with Familial thoracic aortic aneurysm disease (FTAAD) of European ancestry, the variant found was an insertion of a cytosine within a seven-cytosine stretch in the last exon, predicted to cause p.(S209Qfs*3). This variant was also identified independently in eight affected members of three pedigrees of Japanese ancestry in a separate Japanese patient group. (Note: the variant is present in gnomAD v2.1.1 in 22 heterozygotes as a filtered out variant.). Also, this study found a deletion of one of those cytosines causing p.(S209Afs*61), in one individual or family. Also, there was one family in Belgium in which the affected members carried a 5-bp deletion in the same stretch of polycytosines inducing a frameshift p.(P207Qfs*3). Phenotypic analysis of the individuals suggest that the phenotype of these FTAAD individuals and families is more like Loeys-Dietz syndrome. Sources: Literature |
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| Mendeliome v1.842 | LHX2 |
Manny Jacobs gene: LHX2 was added gene: LHX2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: LHX2 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: LHX2 were set to PMID: 37057675 Phenotypes for gene: LHX2 were set to Neurodevelopmental disorder (MONDO: 0700092) Review for gene: LHX2 was set to GREEN Added comment: PMID: 37057675 Case series of 19 individuals across 18 families. 1 whole gene deletion, 7 missense, 10 predicted LoF variants. Proposed loss-of-function mechanism. Variable phenotype, with variable intellectual disability and behavioural (ASD/ADHD) features. Microcephaly in 7 individuals. 1 variant inherited from a mildly affected parent, all other variants with parental genotype available shown to be de novo. Sources: Literature |
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| Mendeliome v1.841 | PMEPA1 |
Hazel Phillimore gene: PMEPA1 was added gene: PMEPA1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PMEPA1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: PMEPA1 were set to PMID: 36928819 Phenotypes for gene: PMEPA1 were set to Familial thoracic aortic aneurysm disease (FTAAD); Loeys-Dietz syndrome Mode of pathogenicity for gene: PMEPA1 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: PMEPA1 was set to AMBER Added comment: PMID: 36928819; Greene, D. et al. (2023) Nat Med. 29(3):679-688. A paper by Genomics England Research Consortium. Genetic association analysis of 77,539 genomes . Eight families with truncating variants affecting the same stretch of cytosines in this gene. In the 100KGP discovery cohort, in three families with Familial thoracic aortic aneurysm disease (FTAAD) of European ancestry, the variant found was an insertion of a cytosine within a seven-cytosine stretch in the last exon, predicted to cause p.(S209Qfs*3). This variant was also identified independently in eight affected members of three pedigrees of Japanese ancestry in a separate Japanese patient group. Also, this study found a deletion of one of those cytosines causing p.(S209Afs*61), in one individual or family. Also, there was one family in Belgium in which the affected members carried a 5-bp deletion in the same stretch of polycytosines inducing a frameshift p.(P207Qfs*3). Phenotypic analysis of the individuals suggest that the phenotype of these FTAAD individuals and families is more like Loeys-Dietz syndrome. Sources: Literature |
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| Mendeliome v1.839 | CBX1 |
Daniel Flanagan gene: CBX1 was added gene: CBX1 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: CBX1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: CBX1 were set to PMID: 37087635 Phenotypes for gene: CBX1 were set to Neurodevelopmental disorder (MONDO#0700092), CBX1-related Review for gene: CBX1 was set to GREEN Added comment: Three different de novo missense variants identified in three unrelated individuals with developmental delay, hypotonia, autistic features, and variable dysmorphic features such as broad forehead and head circumference above average. Mutant mice displayed increased latency-to-peak response, suggesting the possibility of synaptic delay or myelination deficits. Functional studies confirmed the reduction of mutant HP1β binding to heterochromatin. Sources: Expert list |
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| Mendeliome v1.838 | CNOT9 |
Karina Sandoval gene: CNOT9 was added gene: CNOT9 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CNOT9 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: CNOT9 were set to PMID: 37092538 Phenotypes for gene: CNOT9 were set to neurodevelopmental disorder, MONDO:0700092 Review for gene: CNOT9 was set to GREEN Added comment: 7 individuals with de novo variants. In silico predictions of functional relevance. All affected persons have DD/ID, with five of them showing seizures. Other symptoms include. Symptoms: Neuro dev disorder. ID, Epilepsy. All affected persons have DD/ID, with five of them showing seizures. Other symptoms include muscular hypotonia, facial dysmorphism, and behavioral abnormalities. Sources: Literature |
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| Mendeliome v1.837 | MRPL39 |
Lilian Downie changed review comment from: AR 3 unrelated individuals, confirmed variants in trans Functional studies on patient fibroblasts Multisystem disease, variable onset 2x infants with a clinical diagnosis of Leigh syndrome (congestive cardiac failure, increased lactates, seizures, apnea, poor feeding, and global developmental delay, leading to early death (< 1 year of age)) Adult with hypertrophic cardiomyopathy, lactic acidosis, ADHD Sources: Literature; to: AR 3 unrelated individuals, confirmed variants in trans Functional studies on patient fibroblasts Multisystem disease, variable onset 2x infants with a clinical diagnosis of Leigh syndrome (congestive cardiac failure, increased lactates, seizures, apnea, poor feeding, and global developmental delay, leading to early death (< 1 year of age)) Adult with hypertrophic cardiomyopathy, lactic acidosis, ADHD Sources: Literature |
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| Mendeliome v1.836 | INTS11 |
Melanie Marty changed review comment from: PMID: 37054711 - 15 individuals from 10 unrelated families with bi-allelic variants in INTS11 with global developmental and language delay, intellectual disability, impaired motor development, and brain atrophy.; to: PMID: 37054711 - 15 individuals from 10 unrelated families with bi-allelic variants in INTS11 with global developmental and language delay, intellectual disability, 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. |
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| 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 |
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| 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 |
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| Mendeliome v1.834 | MRPL39 |
Lilian Downie changed review comment from: AR 3 unrelated individuals, confirmed variants in trans Functional studies on patient fibroblasts Multisystem disease, variable onset 2x infants with a clinical diagnosis of Leigh syndrome (MIM 256000) Adult with hypertrophic cardiomyopathy, lactic acidosis, ADHD Sources: Literature; to: AR 3 unrelated individuals, confirmed variants in trans Functional studies on patient fibroblasts Multisystem disease, variable onset 2x infants with a clinical diagnosis of Leigh syndrome (congestive cardiac failure, increased lactates, seizures, apnea, poor feeding, and global developmental delay, leading to early death (< 1 year of age)) Adult with hypertrophic cardiomyopathy, lactic acidosis, ADHD Sources: Literature |
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| Mendeliome v1.834 | MRPL39 |
Lilian Downie gene: MRPL39 was added gene: MRPL39 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MRPL39 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: MRPL39 were set to PMID: 37133451 Phenotypes for gene: MRPL39 were set to Leigh syndrome MONDO:0009723 Added comment: AR 3 unrelated individuals, confirmed variants in trans Functional studies on patient fibroblasts Multisystem disease, variable onset 2x infants with a clinical diagnosis of Leigh syndrome (MIM 256000) Adult with hypertrophic cardiomyopathy, lactic acidosis, ADHD Sources: Literature |
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| Mendeliome v1.830 | GATAD2A |
Bryony Thompson gene: GATAD2A was added gene: GATAD2A was added to Mendeliome. Sources: Literature Mode of inheritance for gene: GATAD2A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: GATAD2A were set to https://doi.org/10.1016/j.xhgg.2023.100198; 17565372 Phenotypes for gene: GATAD2A were set to Neurodevelopmental disorder, MONDO:0700092, GATAD2A-related Review for gene: GATAD2A was set to GREEN Added comment: https://doi.org/10.1016/j.xhgg.2023.100198 - Five unrelated individuals with a neurodevelopmental disorder identified with 3 missense & 2 LoF (4 de novo & 1 unknown inheritance). The shared clinical features with variable expressivity include global developmental delay (4/4), craniofacial dysmorphism (3/5), structural brain defects (2/3), musculoskeletal anomalies (3/5), vision/hearing defects (2/3), gastrointestinal/renal defects (2/3). Loss of function is the expected mechanism of disease. In vitro assays of one of the missense variants (p.Cys420Tyr) demonstrates disruption of GATAD2A integration with CHD3, CHD4, and CHD5 PMID: 17565372 - null mouse model is embryonic lethal. Sources: Literature |
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| 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 |
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| 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 v1.776 | CRIPT |
Karina Sandoval changed review comment from: PMID: 37013901 identified 6 individuals with Rothmund-Thomson syndrome, two new identified and 4 were already published. 5 were hom, 1 was chet, all with different variants. Additionally all presented with neuro dev delay and seizures. CRIPT-deficient fibroblasts showed an unremarkable mitotic progression and unremarkable number of mitotic errors, c.132del p.(Ala45Glyfs*82), hom c.227G>A, p.(Cys76Tyr), hom c.133_134insGG,p.(Ala45Glyfs*82),hom c.141del p.(Phe47Leufs*84), hom c.8G>A p.(Cys3Tyr), 1,331 bp del exon 1, chet c.7_8del; p.(Cys3Argfs*4), hom; to: PMID: 37013901 identified 6 individuals with Rothmund-Thomson syndrome characterised by poikiloderma, sparse hair, small stature, skeletal defects, cancer, cataracts, resembling features of premature aging. Two new variants identified and 4 were already published. 5 were hom, 1 was chet, all with different variants. All CRIPT individuals fulfilled the diagnostic criteria for RTS, and additionally had neurodevelopmental delay and seizures. CRIPT-deficient fibroblasts showed an unremarkable mitotic progression and unremarkable number of mitotic errors, c.132del p.(Ala45Glyfs*82), hom c.227G>A, p.(Cys76Tyr), hom c.133_134insGG,p.(Ala45Glyfs*82),hom c.141del p.(Phe47Leufs*84), hom c.8G>A p.(Cys3Tyr), 1,331 bp del exon 1, chet c.7_8del; p.(Cys3Argfs*4), hom |
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| Mendeliome v1.776 | ACTC1 |
Lilian Downie gene: ACTC1 was added gene: ACTC1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ACTC1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ACTC1 were set to PMID: 36945405 Phenotypes for gene: ACTC1 were set to Atrial septal defect 5 MIM#612794; Cardiomyopathy, dilated, 1R MIM#613424; Cardiomyopathy, hypertrophic, 11 MIM#612098; ACTC1 related distal arthrogryposis MONDO:0019942 Review for gene: ACTC1 was set to GREEN Added comment: ClinGen definitive association with HCM, moderate for DCM 5 new families (8 individuals) with a distral arthrogryposis phenotype (PMID: 36945405) multiple congenital contractures, neck pterygia, scoliosis, and congenital heart defects/cardiomyopathy facial features: microretrognathia, ptosis, downslanting palpebral fissures, low-set ears, and a long nasal bridge All missense variants Sources: Literature |
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| Mendeliome v1.775 | ESAM |
Chern Lim gene: ESAM was added gene: ESAM was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ESAM was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ESAM were set to 36996813 Phenotypes for gene: ESAM were set to Neurodevelopmental disorder (MONDO#0700092), ESAM-related Review for gene: ESAM was set to GREEN gene: ESAM was marked as current diagnostic Added comment: PMID 36996813 - Thirteen affected individuals, including four fetuses, from eight unrelated families, with homozygous loss-of-function-type variants in ESAM – 2 of the variants are frameshifts, 1x nonsense, 1x canonical splice. - Affected individuals have profound global developmental delay/unspecified intellectual disability, epilepsy, absent or severely delayed speech, varying degrees of spasticity, ventriculomegaly, and ICH/cerebral calcifications, the latter being also observed in the fetuses. - One of the frameshift variant c.115del (p.Arg39Glyfs*33), was detected in six individuals from four unrelated families from the same geographic region in Turkey (southeastern Anatolia), suggesting a founder effect. - The c.451+1G>A variant was detected in three individuals from two independent families with the same ethnic origin (Arab Bedouin) Sources: Literature |
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| Mendeliome v1.774 | SNAPC4 |
Ee Ming Wong changed review comment from: - Ten individuals from eight families with neurodevelopmental disorder found to be compound heterozygous for variants in SNAPC4 - Identified variants included 6x missense, 1x nonsense, 1x frameshift and 6x splice - Depletion of SNAPC4 levels in HeLa cell lines via genomic editing led to decreased snRNA expression and global dysregulation of alternative splicing, similarly observed in patient fibroblasts Sources: Literature; to: - Ten individuals from eight families with neurodevelopmental disorder found to be biallelic for variants in SNAPC4 - Identified variants included 6x missense, 1x nonsense, 1x frameshift and 6x splice - Depletion of SNAPC4 levels in HeLa cell lines via genomic editing led to decreased snRNA expression and global dysregulation of alternative splicing, similarly observed in patient fibroblasts Sources: Literature |
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| Mendeliome v1.774 | SNAPC4 |
Ee Ming Wong gene: SNAPC4 was added gene: SNAPC4 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SNAPC4 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SNAPC4 were set to 36965478 Phenotypes for gene: SNAPC4 were set to Neurodevelopmental disorder (MONDO#0700092), SNAPC4-related Review for gene: SNAPC4 was set to GREEN gene: SNAPC4 was marked as current diagnostic Added comment: - Ten individuals from eight families with neurodevelopmental disorder found to be compound heterozygous for variants in SNAPC4 - Identified variants included 6x missense, 1x nonsense, 1x frameshift and 6x splice - Depletion of SNAPC4 levels in HeLa cell lines via genomic editing led to decreased snRNA expression and global dysregulation of alternative splicing, similarly observed in patient fibroblasts Sources: Literature |
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| Mendeliome v1.771 | DAAM2 | Zornitza Stark edited their review of gene: DAAM2: Added comment: AIS: 6 unrelated individuals with extensive functional data.; Changed publications: 33232676, 36972684; Changed phenotypes: Nephrotic syndrome, type 24, MIM# 619263, Steroid-resistant nephrotic syndrome (SRNS), Androgen insensitivity syndrome, MONDO:0019154, DAAM2-related; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| 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 |
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| Mendeliome v1.713 | SRP19 |
Zornitza Stark gene: SRP19 was added gene: SRP19 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SRP19 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SRP19 were set to 36223592 Phenotypes for gene: SRP19 were set to Neutropenia, MONDO:0001475, SRP19-related Review for gene: SRP19 was set to AMBER Added comment: Five individuals from two branches of a consanguineous family, good segregation data. Zebrafish model. Sources: Literature |
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| 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 |
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| 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. |
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| 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. |
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| Mendeliome v1.698 | MCF2L |
Michelle Torres gene: MCF2L was added gene: MCF2L was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MCF2L was set to Unknown Publications for gene: MCF2L were set to 36760094 Phenotypes for gene: MCF2L were set to vascular malformation MONDO:0024291, MCF2L-related Review for gene: MCF2L was set to RED Added comment: Three families with Systemic malformation (resulting in a left to right shunt instead of the right to left shunt seen in individuals with HHT) had missense variants in the MCF2L gene (families 1, 2 and 7). Family 1 (Val875Met: v2 & v3: 113 hets) did no present PA (pulmonary artery). Family 2 (Cys199Gly : v2 & v3: 260 hets, 1 hom) did no present PA (pulmonary artery). Family 7: Leu130Pro (1 het, 0 hom), segregated in family 7 with SA-PA (systemic artery to the pulmonary artery), with 5x affected tested (Sanger or WES). Unaffected and other 6x individuals affected were not tested. Sources: Literature |
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| Mendeliome v1.695 | TEFM |
Ee Ming Wong gene: TEFM was added gene: TEFM was added to Mendeliome. Sources: Literature Mode of inheritance for gene: TEFM was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: TEFM were set to 36823193 Phenotypes for gene: TEFM were set to Mitochondrial disease (MONDO#0044970), TEFM-related Review for gene: TEFM was set to GREEN gene: TEFM was marked as current diagnostic Added comment: - Seven TEFM variants (4 missense, 2 fs, 1 in-frame del) in seven individuals across five unrelated families - Muscle and primary fibroblast from the affected individuals have reduced levels of promoter distal mitochondrial RNA transcripts - TEFM knockdown in zebrafish embryos resulted in neuromuscular junction abnormalities and abnormal mitochondrial function Sources: Literature |
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| 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 |
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| Mendeliome v1.656 | EFCAB1 |
Chirag Patel gene: EFCAB1 was added gene: EFCAB1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: EFCAB1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: EFCAB1 were set to PMID: 36727596 Phenotypes for gene: EFCAB1 were set to Primary ciliary dyskinesia and heterotaxy, no OMIM # Review for gene: EFCAB1 was set to GREEN Added comment: WES in 3 individuals with laterality defects and respiratory symptoms, identified homozygous pathogenic variants in CLXN (EFCAB1). They found Clxn expressed in mice left-right organizer. Transmission electron microscopy depicted outer dynein arm (ODA) defects in distal ciliary axonemes. Immunofluorescence microscopy revealed absence of CLXN from the ciliary axonemes, absence of the ODA components DNAH5, DNAI1 and DNAI2 from the distal axonemes, as well as mislocalization or absence of DNAH9. Additionally, CLXN is undetectable in ciliary axonemes of individuals with defects in the outer dynein arm docking (ODA-DC) machinery: ODAD1, ODAD2, ODAD3 and ODAD4. Moreover, SMED-EFCAB1-deficient planaria displayed ciliary dysmotility. Sources: Literature |
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| Mendeliome v1.649 | SPTSSA | Seb Lunke Added comment: Comment on list classification: Three individuals but only two variants with different inheritance. Amber despite functional data. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| Mendeliome v1.629 | HTR2C |
Zornitza Stark gene: HTR2C was added gene: HTR2C was added to Mendeliome. Sources: Literature Mode of inheritance for gene: HTR2C was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: HTR2C were set to 36536256 Phenotypes for gene: HTR2C were set to Obesity disorder, MONDO:0011122, HTR2C-related Review for gene: HTR2C was set to GREEN Added comment: Exome sequencing of 2,548 people with severe obesity and 1,117 control individuals without obesity identified 13 rare variants in the gene encoding 5-HT2CR (HTR2C) in 19 unrelated people (3 males and 16 females). Eleven variants caused a loss of function in HEK293 cells. All people who carried variants had hyperphagia and some degree of maladaptive behavior. Obesity was severe, childhood-onset. Knock-in male mice harboring a human loss-of-function HTR2C variant developed obesity and reduced social exploratory behavior; female mice heterozygous for the same variant showed similar deficits with reduced severity. Sources: Literature |
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| 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 |
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| Mendeliome v1.626 | THBS1 |
Zornitza Stark gene: THBS1 was added gene: THBS1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: THBS1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: THBS1 were set to 36453543 Phenotypes for gene: THBS1 were set to Congenital glaucoma MONDO:0020366, THBS1-related Review for gene: THBS1 was set to GREEN Added comment: Missense alleles altering p.Arg1034, a highly evolutionarily conserved amino acid, in 3 unrelated and ethnically diverse families affected by congenital glaucoma. Thbs1R1034C-mutant mice had elevated intraocular pressure (IOP), reduced ocular fluid outflow, and retinal ganglion cell loss. Histology revealed an abundant, abnormal extracellular accumulation of THBS1 with abnormal morphology of juxtacanalicular trabecular meshwork (TM), an ocular tissue critical for aqueous fluid outflow. Functional characterization showed that the THBS1 missense alleles found in affected individuals destabilized the THBS1 C-terminus, causing protein misfolding and extracellular aggregation. Analysis using a range of amino acid substitutions at position R1034 showed that the extent of aggregation was correlated with the change in protein-folding free energy caused by variations in amino acid structure. Sources: Literature |
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| Mendeliome v1.614 | LY96 |
Zornitza Stark gene: LY96 was added gene: LY96 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: LY96 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: LY96 were set to 36462957 Phenotypes for gene: LY96 were set to Inborn error of immunity, MONDO:0003778, LY96-related Review for gene: LY96 was set to RED Added comment: Single individual with infantile colitis associated with failure-to-thrive, bloody diarrhoea, and perianal abscesses since the age of 4 months. Later developed bronchiectasis and persistent pneumonia, which required lobectomy at the age of 6 years. Found to have homozygous inflame deletion. Brother with same deletion presented with recurrent otitis media and pneumonia but exhibited no signs of intestinal inflammation. Sources: Expert Review |
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| 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 |
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| Mendeliome v1.601 | TRPC5 |
Hazel Phillimore gene: TRPC5 was added gene: TRPC5 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: TRPC5 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females Publications for gene: TRPC5 were set to PMID: 36323681; 24817631; 23033978; 33504798; 28191890 Phenotypes for gene: TRPC5 were set to Intellectual disability; autistic spectrum disorder Review for gene: TRPC5 was set to AMBER Added comment: PMID: 36323681; Leitão E. et al. (2022) Nat Commun.13(1):6570: Missense variant NM_012471.2:c.523C>T, p.(Arg175Cys in three brothers with intellectual disability (ID) and autistic spectrum disorder (ASD), inherited from an asymptomatic mother and absent in the maternal grandparents. Whole cell patch clamp studies of HEK293 created by site-directed mutagenesis showed increased current of this calcium channel (constitutively opened). (This variant is absent in gnomAD v2.1.1). Also, the nonsense variant, c.965G> A, p.(Trp322*) was found in a high functioning ASD male (maternally inherited), NMD-predicted. Other papers and TRPC5 variants that were cited to associate this gene with X-linked ID and/or ASD include: PMID: 24817631; Mignon-Ravix, C. et al. (2014) Am. J.Med. Genet. A 164A: 1991–1997: A hemizygous 47-kb deletion in Xq23 including exon 1 of the TRPC5 gene. He had macrocephaly, delayed psychomotor development, speech delay, behavioural problems, and autistic features. Maternally inherited, and a family history compatible with X-linked inheritance (i.e., maternal great uncle was also affected, although not tested). In addition, PMID: 36323681; Leitão E. et al. (2022) cites papers with the variants p.(Pro667Thr), p.(Arg71Gln) and p.(Trp225*). NB. p.(Pro667Thr) is absent in gnomAD (v2.1.1), p.(Arg71Gln) is also absent (the alternative variant p.(Arg71Trp) is present once as heterozygous only). p.(Trp225*) is absent, and it should be noted that PTCs / LoF variants are very rare (pLI = 1). However, looking further into the three references, the evidence is not as clear or as accurate as was stated. The missense variant c.1999C>A, p.(Pro667Thr), was stated as de novo, but was actually maternally inherited but was still considered a candidate for severe intellectual disability (shown in the Appendix, Patient 93, with severe speech delay, autism spectrum disorder and Gilles de la Tourette). This patient also has a de novo MTF1 variant. Reference: PMID: 23033978; de Ligt, J. et al. (2012) N. Engl. J. Med. 367: 1921–1929). Missense variant (de novo): c.212G>A, p.(Arg71Gln), was found as part of the Deciphering Developmental Disorders (DDD) study and is shown in individual 164 in Supplementary Table 2 of PMID: 33504798; Martin, HC. et al. (2021) Nat. Commun.12: 627. Also displayed in DECIPHER (DDD research variant) with several phenotype traits, but ID and ASD are not specifically mentioned. Nonsense variant: c.674G>A. p.(Trp225*) was stated as de novo but was inherited (reference PMID: 28191890; Kosmicki, JA. et al. (2017) Nat. Genet. 49: 504–510. Supplement Table 7). This was a study of severe intellectual delay, developmental delay / autism. (NB. The de novo p.(Arg71Gln) variant from the DDD study is also listed (subject DDD 342 in Supplement 4 / Table 2). Sources: Literature |
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| Mendeliome v1.601 | BSN |
Krithika Murali changed review comment from: Ye et al 2022, Neurogenetics identified 4 unrelated individuals with epilepsy and compound heterozygous BSN variants via trio WES (combination of null and missense). Homozygous knockout mouse models showed abnormal CNS transmission and seizure activity. None of the identified variants were present in population databases as homozygotes. One individual had ID and microcephaly but all other individuals with biallelic variants had normal development. In addition, heterozygous variants were identified in unrelated affected individuals - 2 apparently co-segregating missense variants and 2 de novo null variants. These variants were either absent in population databases or rare. The authors note that affected individuals with heterozygous variants had milder disease - either requiring no therapy or monotherapy only. Heterozygous knockout mice had no phenotype and there were not enough affected individuals in the families to truly determine co-segregation. In addition, carrier parents of individuals with biallelic variants did not appear to be affected. Association between biallelic variants and epilepsy stronger than for monoallelic. Sources: Literature; to: Ye et al 2022, Neurogenetics - https://jmg.bmj.com/content/early/2022/12/12/jmg-2022-108865 Identified 4 unrelated individuals with epilepsy and compound heterozygous BSN variants via trio WES (combination of null and missense). Homozygous knockout mouse models showed abnormal CNS transmission and seizure activity. None of the identified variants were present in population databases as homozygotes. One individual had ID and microcephaly but all other individuals with biallelic variants had normal development. In addition, heterozygous variants were identified in unrelated affected individuals - 2 apparently co-segregating missense variants and 2 de novo null variants. These variants were either absent in population databases or rare. The authors note that affected individuals with heterozygous variants had milder disease - either requiring no therapy or monotherapy only. Heterozygous knockout mice had no phenotype and there were not enough affected individuals in the families to truly determine co-segregation. In addition, carrier parents of individuals with biallelic variants did not appear to be affected. Association between biallelic variants and epilepsy stronger than for monoallelic. Sources: Literature |
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| 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 |
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| 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 |
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| Mendeliome v1.588 | BSN |
Krithika Murali gene: BSN was added gene: BSN was added to Mendeliome. Sources: Literature Mode of inheritance for gene: BSN was set to BIALLELIC, autosomal or pseudoautosomal Phenotypes for gene: BSN were set to Epilepsy MONDO:0005027 Review for gene: BSN was set to GREEN Added comment: Ye et al 2022, Neurogenetics identified 4 unrelated individuals with epilepsy and compound heterozygous BSN variants via trio WES (combination of null and missense). Homozygous knockout mouse models showed abnormal CNS transmission and seizure activity. None of the identified variants were present in population databases as homozygotes. One individual had ID and microcephaly but all other individuals with biallelic variants had normal development. In addition, heterozygous variants were identified in unrelated affected individuals - 2 apparently co-segregating missense variants and 2 de novo null variants. These variants were either absent in population databases or rare. The authors note that affected individuals with heterozygous variants had milder disease - either requiring no therapy or monotherapy only. Heterozygous knockout mice had no phenotype and there were not enough affected individuals in the families to truly determine co-segregation. In addition, carrier parents of individuals with biallelic variants did not appear to be affected. Association between biallelic variants and epilepsy stronger than for monoallelic. Sources: Literature |
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| 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 |
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| 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 |
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| Mendeliome v1.576 | TRA2B |
Elena Savva gene: TRA2B was added gene: TRA2B was added to Mendeliome. Sources: Literature Mode of inheritance for gene: TRA2B was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: TRA2B were set to PMID: 36549593 Phenotypes for gene: TRA2B were set to Neurodevelopmental disorder, TRA2B-related (MONDO#0700092) Review for gene: TRA2B was set to GREEN Added comment: PMID: 36549593 - 12 individuals with ID and dev delay. Additional features include infantile spams 6/12, hypotonia 12/12, dilated brain ventricles 6/12, microcephaly 5/12 - All variants result in the loss of 1/2 transcripts (start-losses or PTCs upstream of a second translation start position). Shorter transcript expression is increased, longer transcript expression is decreased. - Apparently het mice K/O are normal, but complete K/O cannot develop embryonically. - DN mechanism suggested Sources: Literature |
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| 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 |
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| 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 |
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| 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 v1.554 | SETD2 |
Zornitza Stark edited their review of gene: SETD2: Added comment: PMID 32710489: 12 unrelated patients, ranging from 1 month to 12 years of age, with a multisystemic neurodevelopmental disorder associated with a specific de novo heterozygous mutation in the SETD2 gene (R1740W). Key clinical features: severely impaired global development apparent from infancy, feeding difficulties with failure to thrive, small head circumference, and dysmorphic facial features. Affected individuals have impaired intellectual development and hypotonia; they do not achieve walking or meaningful speech. Other neurologic findings may include seizures, hearing loss, ophthalmologic defects, and brain imaging abnormalities. There is variable involvement of other organ systems, including skeletal, genitourinary, cardiac, and possibly endocrine. Further 3 unrelated patients identified with mild to moderately impaired intellectual development associated with a specific de novo heterozygous mutation in the SETD2 gene (R1740Q). These are distinct clinically from Luscan-Lumish syndrome, which is characterised by overgrowth.; Changed publications: 29681085, 32710489; Changed phenotypes: Luscan-Lumish syndrome, MIM#616831, Rabin-Pappas syndrome,MIM# 620155, Intellectual developmental disorder, autosomal dominant 70, MIM# 620157 |
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| 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 |
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| 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 |
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| 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 |
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| 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 v1.534 | NLGN4X | Zornitza Stark Added comment: Comment when marking as ready: Definitive assessment by ClinGen noted, as well as 'limited' assessments by G2P and Genomics England. Many of the variants are multi-gene deletions; phenotypes are not well delineated, with several individuals not having ID. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v1.504 | KDM2B |
Ain Roesley changed review comment from: 27 individuals from 22 families were recruited 12 SNV classified LP/P, all de novo except 2 familial cases 5 variants were classified as VUS if more than 1 het is present in gnomAD or does result in a KDM2B-specific episignature (therefore suggesting normal function) Sources: Literature; to: 27 individuals from 22 families were recruited 13 SNV classified LP/P, all de novo except 2 familial cases 5 variants were classified as VUS if more than 1 het is present in gnomAD or does result in a KDM2B-specific episignature (therefore suggesting normal function) Sources: Literature |
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| Mendeliome v1.503 | KDM2B |
Ain Roesley gene: KDM2B was added gene: KDM2B was added to Mendeliome. Sources: Literature Mode of inheritance for gene: KDM2B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: KDM2B were set to 36322151 Phenotypes for gene: KDM2B were set to neurodevelopmental disorder MONDO#070009, KDM2B-related Review for gene: KDM2B was set to GREEN gene: KDM2B was marked as current diagnostic Added comment: 27 individuals from 22 families were recruited 12 SNV classified LP/P, all de novo except 2 familial cases 5 variants were classified as VUS if more than 1 het is present in gnomAD or does result in a KDM2B-specific episignature (therefore suggesting normal function) Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| 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 v1.477 | CLEC3B |
Chirag Patel gene: CLEC3B was added gene: CLEC3B was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CLEC3B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: CLEC3B were set to PMID: 35331648 Phenotypes for gene: CLEC3B were set to Macular dystrophy, retinal, 4, OMIM #619977 Review for gene: CLEC3B was set to GREEN Added comment: 12 affected individuals from 5 multigenerational Japanese families in a small village in Miyazaki diagnosed with autosomal dominant maculoretinopathy. WES identified a pathogenic variant (p.Ala180Asp) in CLEC3B, which encodes tetranectin, a plasminogen kringle-4 binding protein. Variant cosegregated with the ocular phenotype. Mice that received subretinal injections with CLEC3B variant displayed multiple subretinal hyperreflective deposits, reduced retinal thickness, and decreased electroretinographic responses. The optokinetic tracking response indicated that spatial frequency was significantly lower (P < .05), implying impaired visual function in the mice. Sources: Literature |
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| Mendeliome v1.472 | MTSS1 |
Zornitza Stark gene: MTSS1 was added gene: MTSS1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MTSS1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: MTSS1 were set to 36067766 Phenotypes for gene: MTSS1 were set to Intellectual disability, MTSS1-related (MONDO#0001071) Review for gene: MTSS1 was set to GREEN Added comment: Five individuals with the same heterozygous de novo variant in MTSS2 (NM_138383.2: c.2011C>T [p.Arg671Trp]) identified by exome sequencing. The individuals presented with global developmental delay, mild intellectual disability, ophthalmological anomalies, microcephaly or relative microcephaly, and shared mild facial dysmorphisms. Immunoblots of fibroblasts from two affected individuals revealed that the variant does not significantly alter MTSS2 levels. We modeled the variant in Drosophila and showed that the fly ortholog missing-in-metastasis (mim) was widely expressed in most neurons and a subset of glia of the CNS. Loss of mim led to a reduction in lifespan, impaired locomotor behavior, and reduced synaptic transmission in adult flies. Expression of the human MTSS2 reference cDNA rescued the mim loss-of-function (LoF) phenotypes, whereas the c.2011C>T variant had decreased rescue ability compared to the reference, suggesting it is a partial LoF allele. However, elevated expression of the variant, but not the reference MTSS2 cDNA, led to similar defects as observed by mim LoF, suggesting that the variant is toxic and may act as a dominant-negative allele when expressed in flies. Sources: Literature |
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| Mendeliome v1.468 | SMC5 |
Zornitza Stark gene: SMC5 was added gene: SMC5 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SMC5 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SMC5 were set to 36333305 Phenotypes for gene: SMC5 were set to Multiple congenital anomalies/dysmorphic syndrome, MONDO:0019042, SLF2-related; Atelis syndrome; microcephaly; short stature; ID Review for gene: SMC5 was set to GREEN Added comment: Four individuals from three families with a chromosome breakage disorder and bi-allelic variants in this gene. However, three of the individuals had the same homozygous missense variant. Evidence for functional impact of the variant was limited. However, zebrafish model recapitulated the phenotype and was not rescued by the introduction of this variant, arguing for functional effect. Borderline Amber/Green Sources: Literature |
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| Mendeliome v1.466 | SLF2 |
Zornitza Stark gene: SLF2 was added gene: SLF2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SLF2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SLF2 were set to 36333305 Phenotypes for gene: SLF2 were set to Multiple congenital anomalies/dysmorphic syndrome, MONDO:0019042, SLF2-related; Atelis syndrome; microcephaly; short stature; ID Review for gene: SLF2 was set to GREEN Added comment: Seven individuals from 6 families with a chromosome breakage disorder and bi-allelic variants in this gene (LoF). Functional data including zebrafish model. Sources: Literature |
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| Mendeliome v1.459 | HK1 | Zornitza Stark edited their review of gene: HK1: Added comment: PMID 36333503: 14 non-coding de novo variants affecting a 42-bp conserved region encompassed by a regulatory element in intron 2 of the hexokinase 1 gene (HK1) identified in individuals with hyperinsulinism.; Changed publications: 19536174, 30778173, 25316723, 25190649, 31621442, 32814480, 7655856, 12393545, 33361148, 31119733, 27282571, 36333503; Changed phenotypes: Hyperinsulinism MONDO:0002177, HK1-related, 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 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 v1.452 | WDR5 |
Bryony Thompson gene: WDR5 was added gene: WDR5 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: WDR5 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: WDR5 were set to DOI:https://doi.org/10.1016/j.xhgg.2022.100157 Phenotypes for gene: WDR5 were set to Neurodevelopmental disorder MONDO:0700092, WDR5-related Mode of pathogenicity for gene: WDR5 was set to Other Review for gene: WDR5 was set to GREEN Added comment: Six different missense variants were identified (de novo) in 11 affected individuals with neurodevelopmental disorders, with a broad spectrum of additional features, including epilepsy, aberrant growth parameters, skeletal and cardiac abnormalities. In vivo and in vitro functional suggest that loss-of-function is not the mechanism of disease. The mechanism of disease is yet to be established. Sources: Literature |
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| Mendeliome v1.446 | DNAJB4 |
Karina Sandoval gene: DNAJB4 was added gene: DNAJB4 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: DNAJB4 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DNAJB4 were set to PMID: 36264506 Phenotypes for gene: DNAJB4 were set to Myopathy, MONDO:0005336, DNAJB4-related Review for gene: DNAJB4 was set to GREEN Added comment: 4 individuals from 3 unrelated families with bi-allelic LoF/missense variants in this gene, and either childhood/adult onset of muscle weakness and respiratory failure. One had HCM. Functional studies including mouse model. Sources: Literature |
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| Mendeliome v1.442 | THAP1 |
Michelle Torres commented on gene: THAP1: Monoallelic is well established with reduced penetrance. Biallelic was seen in 3 families generally with severe and early onset dystonia: PMID: 36205328: consanguineous family (gene panel), proband homozygous for p.Lys162Asn with early onset multifocal dystonia with severe oromandibular/laryngeal dysfunction; both parents were confirmed carriers with milder features (47 yo father with tightness and difficulty with fine motor tasks, 41 yo mother with tightness). PMID: 21425335: 3 siblings are homozygous for the p.Leu32His with early-onset generalized dystonia. Carriers were unaffected. PMID: 20211909: a homozygous variant was identified in an individual with with writer's dystonia initially and then developing segmental dystonia, onset at 57 yo, parents could not be tested. |
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| 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 |
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| 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 |
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| 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 |
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| 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. |
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| 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. |
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| 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 |
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| 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 v1.401 | 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v1.371 | GABBR1 |
Zornitza Stark gene: GABBR1 was added gene: GABBR1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: GABBR1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: GABBR1 were set to 36103875 Phenotypes for gene: GABBR1 were set to Neurodevelopmental disorder, GABBR1-related, MONDO:0700092 Review for gene: GABBR1 was set to GREEN Added comment: Four individuals with de novo variants in this gene and varying severity of DD/ID, seizures and hypotonia. Sources: Literature |
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| Mendeliome v1.369 | DUT |
Daniel Flanagan gene: DUT was added gene: DUT was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: DUT was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DUT were set to 28073829; 35611808 Phenotypes for gene: DUT were set to Bone marrow failure and diabetes mellitus syndrome (MIM#620044) Review for gene: DUT was set to GREEN Added comment: Homozygous missense (p.(Tyr142Cys)) identified in eight affected individuals from four unrelated consanguineous families (French, Egyptian, two Libyan) with diabetes and bone marrow failure. DUT silencing in human and rat pancreatic b-cells results in apoptosis via the intrinsic cell death pathway. p.(Tyr142Cys) has 11 heterozygotes and no homozygotes in gnomAD. Sources: Expert list |
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| Mendeliome v1.364 | SLC13A1 |
Lucy Spencer gene: SLC13A1 was added gene: SLC13A1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SLC13A1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SLC13A1 were set to 36175384 Phenotypes for gene: SLC13A1 were set to sulfation-related bone disorder MONDO:0019688, SLC13A1-related Review for gene: SLC13A1 was set to RED Added comment: PMID: 36175384- 1 patient with a homozygous nonsense variant in SLC13A1. Patient has enlargements of the joints, and spondylo-epi-metaphyseal radiological abnormalities in early childhood, which improved with age. Also autistic features and hyposulfatemia and hypersulfaturia, and reduced serum cholesterol sulfate. However the variant in this individual (Arg12Ter) has 569 hets and 1 hom in gnomad. Also this patient was homozygous for CFTR Ala455Gly which is a known pathogenic variant associated with a less severe CF phenotype. Sources: Literature |
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| Mendeliome v1.361 | SARS |
Ee Ming Wong edited their review of gene: SARS: Added comment: -Two missense variants within the aminoacylation domain identified in 16 affected individuals from 3 distinct CMT families -Mutant SerRS proteins exhibited reduced aminoacylation activity and abnormal SerRS dimerization, which suggests the impairment of total protein synthesis and induction of eIF2α phosphorylation; Changed rating: GREEN; Changed publications: 36088542; Changed phenotypes: Genetic peripheral neuropathy MONDO#0020127, SARS1-related |
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| 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 |
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| 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 |
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| Mendeliome v1.354 | FKBP6 |
Dean Phelan gene: FKBP6 was added gene: FKBP6 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: FKBP6 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: FKBP6 were set to PMID: 36150389 Phenotypes for gene: FKBP6 were set to Spermatogenic failure (MONDO:0004983), FKBP6-related Review for gene: FKBP6 was set to GREEN Added comment: PMID: 36150389 - large cohort study of men with severe spermatogenic failure (SPGF), identified six individuals with rare bi-allelic loss of function variants in FKBP6. RT-qPCR and immunofluorescence confirmed lack of FKBP6 expression. In mice, Fkbp6 has also been shown to be essential for spermatogenesis. Sources: Literature |
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| 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 |
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| Mendeliome v1.346 | TRAF3 | Zornitza Stark changed review comment from: Single individual reported.; to: Single individual reported with HSV-induced encephalopathy. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.346 | TRAF3 | Zornitza Stark edited their review of gene: TRAF3: Added comment: PMID 35960817: Nine individuals from five unrelated families with childhood-onset immune diseases and recurrent infections. All patients had suffered recurrent ear and sinopulmonary infections, including pneumonias from encapsulated bacteria Streptococcus pneumoniae and Haemophilus influenza, resulting in early-onset bronchiectasis in several individuals; Changed rating: GREEN; Changed publications: 20832341, 35960817; Changed phenotypes: Autoinflammatory syndrome, TRAF3-related, MONDO:0019751, hypergammaglobulinemia, lymphadenopathy, splenomegaly, Sjögren’s syndrome, {?Encephalopathy, acute, infection-induced (herpes-specific), susceptibility to, 5}, MIM# 614849 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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. |
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| 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. |
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| Mendeliome v1.338 | APRT |
Zornitza Stark changed review comment from: APRT deficiency is an autosomal recessive metabolic disorder that can lead to accumulation of the insoluble purine 2,8-dihydroxyadenine (DHA) in the kidney, which results in crystalluria and the formation of urinary stones. Clinical features include renal colic, hematuria, urinary tract infection, dysuria, and, in some cases, renal failure. The age at onset can range from 5 months to late adulthood; however, as many as 50% of APRT-deficient individuals may be asymptomatic.; to: APRT deficiency is an autosomal recessive metabolic disorder that can lead to accumulation of the insoluble purine 2,8-dihydroxyadenine (DHA) in the kidney, which results in crystalluria and the formation of urinary stones. Clinical features include renal colic, hematuria, urinary tract infection, dysuria, and, in some cases, renal failure. The age at onset can range from 5 months to late adulthood; however, as many as 50% of APRT-deficient individuals may be asymptomatic. Treatable: allopurinol or febuxostat, low purine diet. |
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| 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. ------ 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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. |
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| Mendeliome v1.285 | TMEM163 |
Teresa Zhao changed review comment from: Four unrelated families with a hypomyelinating leukodystrophy phenotype. Genomic testing identified three distinct heterozygous missense variants in TMEM163 with two unrelated individuals sharing the same de novo variant. All have global developmental delay, three of them have seizures and two have ID. Sources: Literature; to: Four unrelated families with a hypomyelinating leukodystrophy phenotype. Genomic testing identified three distinct heterozygous missense variants in TMEM163 with two unrelated individuals sharing the same de novo variant. All have global developmental delay, three of them have seizures. Sources: Literature |
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| Mendeliome v1.283 | TMEM163 |
Teresa Zhao gene: TMEM163 was added gene: TMEM163 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: TMEM163 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: TMEM163 were set to PMID: 35953447 Phenotypes for gene: TMEM163 were set to Hypomyelinating leukodystrophy Review for gene: TMEM163 was set to GREEN Added comment: Four unrelated families with a hypomyelinating leukodystrophy phenotype. Genomic testing identified three distinct heterozygous missense variants in TMEM163 with two unrelated individuals sharing the same de novo variant. All have global developmental delay, three of them have seizures and two have ID. Sources: Literature |
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| 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 |
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| Mendeliome v1.279 | BUD13 |
Alison Yeung gene: BUD13 was added gene: BUD13 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: BUD13 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: BUD13 were set to 35670808 Phenotypes for gene: BUD13 were set to Lipodystrophy, MONDO:0006573 Review for gene: BUD13 was set to AMBER Added comment: 5 individuals with a lipodystrophy phenotype with a typical facial appearance, corneal clouding, achalasia, progressive hearing loss, and variable severity. Although 3 individuals showed stunted growth, intellectual disability, and died within the first decade of life, 2 are adults with normal intellectual development. All individuals harbored an identical homozygous nonsense variant affecting the retention and splicing complex component BUD13. Individuals from only two Algerian families. Sources: Literature |
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| 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. |
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| 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 |
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| 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 |
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| 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 |
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| 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 v1.261 | CCDC82 |
Chirag Patel gene: CCDC82 was added gene: CCDC82 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CCDC82 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CCDC82 were set to PMID: 35373332, 35118659, 27457812 Phenotypes for gene: CCDC82 were set to Intellectual disability and spastic paraparesis, no OMIM # Review for gene: CCDC82 was set to GREEN Added comment: 4 consanguineous families with 9 affected individuals with developmental delay/intellectual disability, and 2 families had spasticity and 1 had epilepsy. WES identified 3 homozgyous truncating variants, segregating with disease and parents as carriers. No functional studies. Sources: Literature |
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| Mendeliome v1.257 | KIF5B |
Chirag Patel gene: KIF5B was added gene: KIF5B was added to Mendeliome. Sources: Literature Mode of inheritance for gene: KIF5B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: KIF5B were set to PMID: 35342932 Phenotypes for gene: KIF5B were set to Kyphomelic dysplasia, no OMIM # Review for gene: KIF5B was set to GREEN Added comment: 4 individuals with Kyphomelic dysplasia (severe bowing of the limbs, sharp angulation of the femora and humeri, short stature, narrow thorax, distinctive facial features, and neonatal respiratory distress. WES found de novo heterozygous missense variants in KIF5B encoding kinesin-1 heavy chain. All variants involved conserved amino acids in or close to the ATPase activity-related motifs in the catalytic motor domain of the KIF5B protein. No functional studies of variants. Previously 2 animal model experiments showed that loss of function of KIF5B can cause kyphomelic dysplasia. First, chondrocyte-specific knockout of Kif5b in mice was shown to produce a disorganized growth plate, leading to bone deformity. Second, double mutants disrupting the two zebrafish kif5b caused abnormal skeletal morphogenesis and the curvature of Meckel's and ceratohyal cartilages. Sources: Literature |
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| 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 |
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| 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 v1.228 | 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 v1.212 | 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 |
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| Mendeliome v1.208 | ALG5 |
Chern Lim gene: ALG5 was added gene: ALG5 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ALG5 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ALG5 were set to 35896117 Phenotypes for gene: ALG5 were set to Cystic renal disease MONDO:0002473, ALG5-related Review for gene: ALG5 was set to GREEN gene: ALG5 was marked as current diagnostic Added comment: PMID:35896117: - Five unrelated families, including 23 affected individuals with non-enlarged cystic kidneys and few or no liver cysts, 8 of them reached end-stage kidney disease from 62 to 91 years of age. Variant confirmed in all but one individual. - Various variant types: frameshift, nonsense, two missense, splice. - Functional studies showed haploinsufficiency is the disease mechanism. Sources: Literature |
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| Mendeliome v1.208 | DOHH |
Daniel Flanagan gene: DOHH was added gene: DOHH was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: DOHH was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DOHH were set to PMID: 35858628 Phenotypes for gene: DOHH were set to Neurodevelopmental disorder, DOHH-related (MONDO#0700092) Review for gene: DOHH was set to GREEN Added comment: Bi-allelic missense and truncating DOHH variants segregating with disease in five affected individuals from four unrelated families. Clinical features were developmental delay and/or intellectual disability (5/5), microcephaly (5/5), visual impairment (nystagmus (3/5), strabismus (3/5), and cortical visual impairment (1/5)) and congenital heart malformations (3/5 individuals). Sources: Expert list |
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| 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 v1.176 | 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 |
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| 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 v1.164 | 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 |
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| 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 v1.143 | PSMB9 | Zornitza Stark edited their review of gene: PSMB9: Added comment: Two additional individuals with neonatal onset autoinflammatory syndrome and a mouse model. De novo recurrent missense G156D.; Changed rating: GREEN; Changed publications: 26524591, 34819510; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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. |
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| 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 |
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| Mendeliome v1.126 | CHMP3 |
Chern Lim gene: CHMP3 was added gene: CHMP3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CHMP3 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CHMP3 were set to PMID: 35710109 Phenotypes for gene: CHMP3 were set to Hereditary spastic paraplegia (MONDO:0019064), CHMP3-related Review for gene: CHMP3 was set to AMBER gene: CHMP3 was marked as current diagnostic Added comment: PMID: 35710109 - Single large family with consanguinity, homozygous missense variant in 5 affected individuals with intellectual and progressive motor disabilities, seizures and spastic quadriplegia. - Functional studies showed reduced CHMP3 protein in patient's fibroblasts, lenti-rescue study showed improved cellular phenotypes associated with impaired autophagy. Sources: Literature |
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| Mendeliome v1.126 | WNK3 |
Lucy Spencer gene: WNK3 was added gene: WNK3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: WNK3 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females Publications for gene: WNK3 were set to 35678782 Phenotypes for gene: WNK3 were set to Neurodevelopmental disorder, WNK3-related (MONDO#0700092) Added comment: 6 maternally inherited hemizygous variants, 3 missense, 2 canonical splice, and a nonsense. Seen in 14 individuals from 6 families, all 14 are male who inherited hemizygous variants from their unaffected heterozygous mothers. The variants cosegregated with disease in 3 families with multiple affected individuals. All 14 patients have ID, 11 have speech delay, 10 have facial abnormalities, 5 have seizures, 6 with microcephaly and 7 with anomalies in brain imaging. Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v1.111 | TNFSF13 |
Zornitza Stark gene: TNFSF13 was added gene: TNFSF13 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: TNFSF13 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: TNFSF13 were set to 32298700 Phenotypes for gene: TNFSF13 were set to Hypogammaglobulinaemia, MONDO:0015977, TNSF13-related Review for gene: TNFSF13 was set to RED Added comment: Single individual, consanguineous parents. Sources: Literature |
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| Mendeliome v1.110 | POU2AF1 |
Zornitza Stark gene: POU2AF1 was added gene: POU2AF1 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: POU2AF1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: POU2AF1 were set to 33571536 Phenotypes for gene: POU2AF1 were set to Agammaglobulinaemia, MONDO:0015977, POU2AF1-related Review for gene: POU2AF1 was set to RED Added comment: Single individual from consanguineous parents lacking immunoglobulins despite normal total B-cell numbers. Sources: Expert Review |
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| Mendeliome v1.106 | IKZF3 | Zornitza Stark edited their review of gene: IKZF3: Added comment: Additional multigenerational family where novel missense variant segregated with disease in 4 individuals.; Changed rating: GREEN; Changed publications: 34155405, 34694366 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 v1.61 | 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 |
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| 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 |
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| Mendeliome v1.40 | SEMA6B |
Dean Phelan commented on gene: SEMA6B: PMID: 35604360 - 14 heterozygous variants were observed in 16 unrelated individuals referred for intellectual disability. Majority of the variants 9/14 were PTCs in the last exon and predicted to escape NMD. Functional studies of selected variants and shRNA knock down studies showed mislocalisation and abnormal protein function. |
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| Mendeliome v1.34 | HEATR3 |
Chern Lim gene: HEATR3 was added gene: HEATR3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: HEATR3 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: HEATR3 were set to PMID: 35213692 Phenotypes for gene: HEATR3 were set to Bone marrow failure, short stature, facial and acromelic dysmorphic features, and mild intellectual disability Review for gene: HEATR3 was set to GREEN gene: HEATR3 was marked as current diagnostic Added comment: PMID: 35213692: - 4 unrelated individuals with biallelic HEATR3 variants (missense and splice site variants), exhibiting bone marrow failure, short stature, facial and acromelic dysmorphic features, and mild intellectual disability. - Functional analysis showed HEATR3 variants destabilised the protein, resulting in a reduction of nuclear uL18 and impaired ribosome biogenesis. Sources: Literature |
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| Mendeliome v0.14650 | ADD1 |
Chirag Patel gene: ADD1 was added gene: ADD1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ADD1 was set to BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal Publications for gene: ADD1 were set to PMID: 34906466 Phenotypes for gene: ADD1 were set to Intellectual disability, corpus callosum dysgenesis, and ventriculomegaly; no OMIM # Review for gene: ADD1 was set to GREEN Added comment: 4 unrelated individuals affected by ID and/or complete or partial agenesis of corpus callosum, and enlarged lateral ventricles. WES found loss-of-function variants - 1 recessive missense variant and 3 de novo variants. The recessive variant is associated with ACC and enlarged lateral ventricles, and the de novo variants were associated with complete or partial agenesis of corpus callosum, mild ID and attention deficit. Human variants impair ADD1 protein expression and/or dimerization with ADD2. Add1 knockout mice recapitulate corpus callosum dysgenesis and ventriculomegaly phenotypes. Three adducin genes (ADD1, ADD2, and ADD3) encode cytoskeleton proteins that are critical for osmotic rigidity and cell shape. ADD1, ADD2, and ADD3 form heterodimers (ADD1/ADD2, ADD1/ADD3), which further form heterotetramers. Adducins interconnect spectrin and actin filaments to form polygonal scaffolds beneath the cell membranes and form ring-like structures in neuronal axons. Adducins regulate mouse neural development, but their function in the human brain is unknown Sources: Literature |
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| 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 v0.14256 | 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. |
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| 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. |
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| Mendeliome v0.14219 | FUT1 | Bryony Thompson Added comment: Comment on list classification: Biallelic loss of function variants produce the Bombay blood group, which is a recessive H-deficient red blood cell phenotype. Bombay and para-Bombay individuals display no apparent deleterious phenotype except in circumstances requiring blood transfusion. No evidence for Mendelian disease associated with this gene. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.14217 | FUT1 | Bryony Thompson Added comment: Comment on list classification: Biallelic loss of function variants cause Bombay phenotype, which is a recessive H-deficient red blood cell phenotype. Bombay and para-Bombay individuals display no apparent deleterious phenotype except in circumstances requiring blood transfusion. No evidence for Mendelian disease associated with this gene. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| Mendeliome v0.14181 | TLR7 | Zornitza Stark changed review comment from: Four affected individuals from two unrelated families and some functional data.; to: Immunodeficiency: Four affected individuals from two unrelated families and some functional data. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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) |
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| Mendeliome v0.14180 | MOV10L1 |
Zornitza Stark gene: MOV10L1 was added gene: MOV10L1 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: MOV10L1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: MOV10L1 were set to 35476666; 20534472 Phenotypes for gene: MOV10L1 were set to Spermatogenic failure 73, MIM#619878 Review for gene: MOV10L1 was set to AMBER Added comment: Two unrelated individuals and a mouse model. Sources: Expert list |
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| Mendeliome v0.14020 | FGFR3 |
Bryony Thompson changed review comment from: FGFR3 has many well-established gene-disease associations with various skeletal dysplasia phenotypes. Gain-of-function is the main mechanism of disease for these disorders, except camptodactyly-tall stature-scoliosis-hearing loss syndrome where bialellic loss-of-function is the expected mechanism of disease. Specific monoallelic variants cause different phenotypes: >99% achondroplasia is caused by variants leading to the missense change p.Gly380Arg; Cysteine substitutions and stop-loss protein elongation variants are highly specific for Thanatophoric dysplasia (TD) type 1; p.Lys650Glu is associated with TD type 2; p.Ala391Glu causes Crouzon syndrome with acanthosis nigricans; and p.Pro250Arg causes Muenke syndrome.; to: FGFR3 has many well-established gene-disease associations with various skeletal dysplasia phenotypes. Gain-of-function is the main mechanism of disease for these disorders, except camptodactyly-tall stature-scoliosis-hearing loss syndrome (CATSHL syndrome, see separate curation below). Specific monoallelic variants cause different phenotypes: >99% achondroplasia is caused by variants leading to the missense change p.Gly380Arg; Cysteine substitutions and stop-loss protein elongation variants are highly specific for Thanatophoric dysplasia (TD) type 1; p.Lys650Glu is associated with TD type 2; p.Ala391Glu causes Crouzon syndrome with acanthosis nigricans; and p.Pro250Arg causes Muenke syndrome. Moderate evidence for CATSHL syndrome, AD & AR: PMID: 8630492, 17033969, 27139183, 24864036, 32641982 - 2 apparently unrelated families segregating the same missense, p.Arg621His. One consanguineous family with 2 affected brothers with homozygous p.Thr546Lys. Heterozygous individuals in the family were unaffected. No functional assays were conducted for either missense to demonstrate loss of function. Null mouse and zebrafish models are similar to the human CATSHL syndrome phenotype. |
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| Mendeliome v0.14020 | GUCA1B |
Zornitza Stark changed review comment from: Single founder variant identified in several Japanese individuals.; to: Single founder variant identified in several Japanese individuals. No other P/LP variants in ClinVar. |
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| 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 v0.13791 | CTR9 |
Dean Phelan gene: CTR9 was added gene: CTR9 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CTR9 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: CTR9 were set to PMID: 35499524 Phenotypes for gene: CTR9 were set to Neurodevelopmental disorder (MONDO:0700092), CTR9 related; Intellectual disability (MONDO:0001071); hypotonia (HP:0001252); joint hyperlaxity (HP:0001388); speech delay; coordination problems; tremor (HP:0001337); autism spectrum disorder (MONDO:0005258) Review for gene: CTR9 was set to GREEN Added comment: PMID: 35499524 - Thirteen individuals with variables degrees of intellectual disability, hypotonia, joint hyperlaxity, speech delay, coordination problems, tremor, autism spectrum disorder. Mild dysmorphism and cardiac anomalies were less frequent. Eleven of the variants were shown to be de novo. Sources: Literature |
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| 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 |
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| Mendeliome v0.13784 | DROSHA |
Lucy Spencer gene: DROSHA was added gene: DROSHA was added to Mendeliome. Sources: Literature Mode of inheritance for gene: DROSHA was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: DROSHA were set to 35405010 Phenotypes for gene: DROSHA were set to Neurodevelopmental disorder (MONDO#0700092), DROSHA-related Review for gene: DROSHA was set to AMBER Added comment: 2 individuals with profound intellectual disability, epilepsy, white matter atrophy, microcephaly, and dysmorphic features, who carry damaging de novo heterozygous variants in DROSHA. Both variants are missense, absent from gnomad. Both individuals noted to have Rett-like features. Functional studies in patient fibroblasts showed one of the missense altered the expression of mature miRNA. Fruit fly models with homozygous LOF variants die during larval stages. introduction of the missense seen in the patients was able to partially rescue this phenotype suggesting LOF is not the mechanism. Sources: Literature |
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| Mendeliome v0.13784 | KCNH5 |
Elena Savva gene: KCNH5 was added gene: KCNH5 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: KCNH5 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: KCNH5 were set to https://www.medrxiv.org/content/10.1101/2022.04.26.22274147v1 Phenotypes for gene: KCNH5 were set to Neurodevelopmental disorders Mode of pathogenicity for gene: KCNH5 was set to Other Review for gene: KCNH5 was set to GREEN Added comment: Happ (2022), preprint: Screen of 893 patients with DEE found 17 patients with missense variants (16/17 de novo, 1/17 inherited). GOF mechanism suggested. Patient phenotypes included focal/generalized seizures, Cognitive outcome for the ten individuals >5 years ranged from normal (3/10) to mild (3/10), moderate (2/10), severe (1/10) and profound (1/10) intellectual disability (ID) p.Arg327His (7 probands), p.Arg333His (4 probands) were recurring Sources: Literature |
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| Mendeliome v0.13782 | STX1A |
Ain Roesley changed review comment from: Preprint: 8 individuals - 2x hom (related) and 6x hets (all de novo except 1x unknown) 7 unrelated since the 2 siblings share similar features: 7/7 ID, 7/7 motor delay, 4/7 epilepsy, 5/7 neonatal hypotonia 2/7 regression, 2/7 ASD excluding 1 with features but did not meet criteria Sources: Literature; to: Preprint: https://www.medrxiv.org/content/10.1101/2022.04.20.22274073v1 8 individuals - 2x hom (related) and 6x hets (all de novo except 1x unknown) 7 unrelated since the 2 siblings share similar features: 7/7 ID, 7/7 motor delay, 4/7 epilepsy, 5/7 neonatal hypotonia 2/7 regression, 2/7 ASD excluding 1 with features but did not meet criteria Sources: Literature |
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| 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 |
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| Mendeliome v0.13778 | STX1A |
Ain Roesley gene: STX1A was added gene: STX1A was added to Mendeliome. Sources: Literature Mode of inheritance for gene: STX1A was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Review for gene: STX1A was set to GREEN gene: STX1A was marked as current diagnostic Added comment: Preprint: 8 individuals - 2x hom (related) and 6x hets (all de novo except 1x unknown) 7 unrelated since the 2 siblings share similar features: 7/7 ID, 7/7 motor delay, 4/7 epilepsy, 5/7 neonatal hypotonia 2/7 regression, 2/7 ASD excluding 1 with features but did not meet criteria Sources: Literature |
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| 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. |
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| 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. |
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| 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). |
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| 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). |
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| Mendeliome v0.13619 | LIPT2 | Zornitza Stark commented on gene: LIPT2: Three individuals from two unrelated families, functional data. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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). |
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| Mendeliome v0.13443 | ENTPD1 | Zornitza Stark commented on gene: ENTPD1: PMID 35471564: 27 individuals from 17 families published, expanding the phenotype to a complex neurodevelopmental disorder characterised by ID, white matter abnormalities and spastic paraplegia. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13422 | TUBA8 | Zornitza Stark edited their review of gene: TUBA8: Added comment: Mono-allelic variants and macrothrombocytopaenia: 6 unrelated individuals with missense variants found in a large cohort of blood donors, some functional data. Individuals were generally asymptomatic.; Changed rating: AMBER; Changed publications: 34704371; Changed phenotypes: Macrothrombocytopaenia, isolated, 2, autosomal dominant, MIM# 619840; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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. |
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| 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 |
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| Mendeliome v0.13297 | PDGFRA |
Krithika Murali changed review comment from: ?Suitability for Incidentalome versus Mendeliome based on adult age of diagnosis in reported cases. --- 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. --- 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. -- 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. --- 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. -- Gain of function somatic variants associated with sporadic GIST. Somatic chromosomal rearrangements resulting in PDGFRA and FIP1L1 gene fusion associated with idiopathic hypereosinophilic syndrome. |
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| 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. |
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| 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. |
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| 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. |
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| 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 |
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| 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 |
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| 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 v0.12731 | CACNA2D1 |
Michelle Torres gene: CACNA2D1 was added gene: CACNA2D1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CACNA2D1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CACNA2D1 were set to 35293990 Phenotypes for gene: CACNA2D1 were set to developmental and epileptic encephalopathy disorder MONDO:0100062 CACNA2D1-related Review for gene: CACNA2D1 was set to GREEN Added comment: PMID 35293990: WES of 2x unrelated individuals with early-onset developmental epileptic encephalopathy, microcephaly, severe hypotonia, absent speech, spasticity, choreiform movements, orofacial dyskinesia, and 2 cortical visual impairment, corpus callosum hypoplasia and progressive volume loss. Patient 2 also had a tiny patent foramen ovale. Patient 1 is homozygous for p.(Ser275Asnfs*13). mRNA and protein expression were reduced to ~10% of WT in fibroblasts Patient 2 is cHet for p.(Leu9Alafs*5) and p.(Gly209Asp). mRNA expression in patients fibroblasts was similar to controls, and protein expression reduced to 31-38%. Functional of the p.(Gly209Asp) showed impaired localization and mutagenesis showed complete loss of channel function. Sources: Literature |
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| 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 |
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| Mendeliome v0.12722 | SLC35B2 |
Melanie Marty changed review comment from: 2 x individuals with homozygous variants (c.1218_1220del and c.1224_1225del) in SLC35B2. Phenotypes included pre- and postnatal growth retardation, scoliosis, severe motor and intellectual disabilities and hypomyelinating leukodystrophy. Functional analysis on patient cells showed that the variants result in a decreased expression of mRNA and affect protein subcellular localization leading to functional impairment of the protein. Sources: Literature; to: 2 x individuals with homozygous variants (c.1218_1220del and c.1224_1225del) in SLC35B2. Phenotypes included pre- and postnatal growth retardation, scoliosis, severe motor and intellectual disabilities and hypomyelinating leukodystrophy. Functional analysis on patient cells showed that the variants result in a decreased expression of mRNA and affect protein subcellular localization leading to functional impairment of the protein. Sources: Literature |
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| 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 |
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| Mendeliome v0.12714 | SLC35B2 |
Melanie Marty gene: SLC35B2 was added gene: SLC35B2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SLC35B2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SLC35B2 were set to PMID: 35325049 Phenotypes for gene: SLC35B2 were set to chondrodysplasia with hypomyelinating leukodystrophy, intellectual disability Review for gene: SLC35B2 was set to AMBER Added comment: 2 x individuals with homozygous variants (c.1218_1220del and c.1224_1225del) in SLC35B2. Phenotypes included pre- and postnatal growth retardation, scoliosis, severe motor and intellectual disabilities and hypomyelinating leukodystrophy. Functional analysis on patient cells showed that the variants result in a decreased expression of mRNA and affect protein subcellular localization leading to functional impairment of the protein. Sources: Literature |
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| Mendeliome v0.12711 | MDFIC |
Belinda Chong gene: MDFIC was added gene: MDFIC was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MDFIC was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: MDFIC were set to 35235341 Phenotypes for gene: MDFIC were set to Central conducting lymphatic anomaly with lymphedema Review for gene: MDFIC was set to GREEN Added comment: Central conducting lymphatic anomaly (CCLA), characterized by the dysfunction of core collecting lymphatic vessels including the thoracic duct and cisterna chyli, and presenting as chylothorax, pleural effusions, chylous ascites, and lymphedema, is a severe disorder often resulting in fetal or perinatal demise. Seven individuals with CCLA from six independent families. Clinical manifestations of affected fetuses and children included nonimmune hydrops fetalis (NIHF), pleural and pericardial effusions, and lymphedema. Generation of a mouse model of human MDFIC truncation variants revealed that homozygous mutant mice died perinatally exhibiting chylothorax. Sources: Literature |
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| 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 |
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| 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. |
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| 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 |
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| 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 |
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| Mendeliome v0.12378 | TAMM41 |
Bryony Thompson gene: TAMM41 was added gene: TAMM41 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: TAMM41 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: TAMM41 were set to 35321494; 29253589 Phenotypes for gene: TAMM41 were set to inborn mitochondrial metabolism disorder MONDO:0004069; hypotonia; developmental delay; myopathy; ptosis Review for gene: TAMM41 was set to GREEN Added comment: Three unrelated individuals with mitochondrial disease that share clinical features, including lethargy at birth, hypotonia, developmental delay, myopathy, and ptosis with biallelic variants. Tissue-specific observations on OXPHOS were identified, cardiolipin levels were unchanged in subject fibroblasts but significantly decreased in the skeletal muscle of affected individuals. The missense variants identified were defective in yeast models. In an in vitro cell model knockdown of TAMM41 resulted in decreased mitochondrial CDP diacylglycerol synthase activity, decreased cardiolipin levels and a decrease in oxygen consumption. Sources: Literature |
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| 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 |
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| Mendeliome v0.12071 | ACER3 | Zornitza Stark edited their review of gene: ACER3: Added comment: Additional publication (Dehvani et al., 2021; PMID: 34281620) detailing three further unrelated cases, each with novel homozygous variants in the ACER3 gene. All individuals displayed features of progressive leukoencephalopathy, developmental delay, hypotonia, appendicular spasticity, and dystonia. Early development is apparently normal followed by symptoms of stagnation and neurologic regression (onset within first year of life).; Changed rating: GREEN; Changed publications: 32816236, 26792856, 34281620; Changed phenotypes: Leukodystrophy, progressive, early childhood-onset, MIM:617762 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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). |
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| 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. |
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| 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 v0.11792 | SUZ12 | Zornitza Stark changed review comment from: More than 10 unrelated individuals reported.; to: More than 10 unrelated individuals reported, ID and overgrowth. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11770 | C2CD6 |
Zornitza Stark gene: C2CD6 was added gene: C2CD6 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: C2CD6 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: C2CD6 were set to 34919125; 34998468; 31985809 Phenotypes for gene: C2CD6 were set to Spermatogenic failure 68 , MIM# 619805 Review for gene: C2CD6 was set to AMBER Added comment: Single individual and two mouse models. Sources: Expert list |
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| 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 |
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| Mendeliome v0.11754 | ADAMTS10 |
Zornitza Stark changed review comment from: Mild intellectual disability is described in around 10% of affected individuals. 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 Sources: Expert list |
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| 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 |
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| 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. |
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| 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 |
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| 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 v0.11320 | 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. |
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| 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. |
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| Mendeliome v0.11286 | KIF5A |
Zornitza Stark edited their review of gene: KIF5A: Added comment: Neonatal intractable myoclonus is a severe neurologic disorder characterized by the onset of intractable myoclonic seizures soon after birth. Affected infants have intermittent apnea, abnormal eye movements, pallor of the optic nerve, and lack of developmental progress. Brain imaging shows a progressive leukoencephalopathy. At least 3 unrelated individuals with de novo LoF variants. SPG10/CMT: variants are generally in the motor domain.; Changed publications: 30057544, 29892902, 28902413, 26403765, 25695920, 25008398, 27463701, 27414745; Changed phenotypes: Neuropathy, Spastic paraplegia 10, autosomal dominant, MIM# 604187, Myoclonus, intractable, neonatal, MIM# 617235 |
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| 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 |
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| 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 |
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| Mendeliome v0.11114 | OPDM4 |
Bryony Thompson STR: OPDM4 was added STR: OPDM4 was added to Mendeliome. Sources: Literature Mode of inheritance for STR: OPDM4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for STR: OPDM4 were set to 35148830 Phenotypes for STR: OPDM4 were set to Oculopharyngodistal myopathy MONDO:0025193 Review for STR: OPDM4 was set to GREEN STR: OPDM4 was marked as clinically relevant Added comment: 5'UTR repeat upstream of RILPL1. Analyses suggest that toxic RNA gain-of-function is the mechanism of disease for the repeat expansion. Distribution of CGG repeat units in RILPL1 ranged from 9 to 16 among 200 normal controls. The size of the CGG repeat ranged from 139 to 197 (169.91 ± 21.82) repeats in 11 unrelated individuals with OPDM. Segregation evidence from 1 family, with 2 affected individuals with the repeat expansion and 1 individual with essential tremor but not OPDM and 86 repeats (intermediate). Sources: Literature |
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| Mendeliome v0.11109 | HIST1H4E |
Paul De Fazio changed review comment from: 17 patients identified with de novo missense variants affecting Lys31, Pro32, Arg35, Leu37, Arg40 (recurrent), Arg45 (recurrent), Tyr98 (recurrent). All individuals had ID/dev delay. Additional phenotypes in some but not all individuals included epilepsy, hypotonia, facial dysmorphism. Most had reduced birth length, OFC, weight (-1 to -3SD). A zebrafish model has developmental defects. Sources: Literature; to: HGNC recognised gene: H4C5 17 patients identified with de novo missense variants affecting Lys31, Pro32, Arg35, Leu37, Arg40 (recurrent), Arg45 (recurrent), Tyr98 (recurrent). All individuals had ID/dev delay. Additional phenotypes in some but not all individuals included epilepsy, hypotonia, facial dysmorphism. Most had reduced birth length, OFC, weight (-1 to -3SD). A zebrafish model has developmental defects. Sources: Literature |
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| Mendeliome v0.11107 | HIST1H4C |
Paul De Fazio changed review comment from: 6 additional individuals with ID and dev delay. All variants were de novo. Lys92 (Lys91 in H4 nomenclature) and Pro33 (Pro32) were the only variants identified. Additional phenotypes in some but not all patients included hypotonia, facial dysmorphisms, conductive hearing loss. Most had reduced birth length, OFC, weight (-1 to -2.5SD). A zebrafish model has developmental defects.; to: HGNC recognised gene: H4C3 6 additional individuals with ID and dev delay. All variants were de novo. Lys92 (Lys91 in H4 nomenclature) and Pro33 (Pro32) were the only variants identified. Additional phenotypes in some but not all patients included hypotonia, facial dysmorphisms, conductive hearing loss. Most had reduced birth length, OFC, weight (-1 to -2.5SD). A zebrafish model has developmental defects. |
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| Mendeliome v0.11103 | HIST1H4E |
Paul De Fazio gene: HIST1H4E was added gene: HIST1H4E was added to Mendeliome. Sources: Literature Mode of inheritance for gene: HIST1H4E was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: HIST1H4E were set to 35202563 Phenotypes for gene: HIST1H4E were set to Neurodevelopmental disorder, HIST1H4E-related MONDO:0700092 Review for gene: HIST1H4E was set to GREEN gene: HIST1H4E was marked as current diagnostic Added comment: 17 patients identified with de novo missense variants affecting Lys31, Pro32, Arg35, Leu37, Arg40 (recurrent), Arg45 (recurrent), Tyr98 (recurrent). All individuals had ID/dev delay. Additional phenotypes in some but not all individuals included epilepsy, hypotonia, facial dysmorphism. Most had reduced birth length, OFC, weight (-1 to -3SD). A zebrafish model has developmental defects. Sources: Literature |
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| Mendeliome v0.11103 | HIST1H4D |
Paul De Fazio gene: HIST1H4D was added gene: HIST1H4D was added to Mendeliome. Sources: Literature Mode of inheritance for gene: HIST1H4D was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: HIST1H4D were set to 35202563 Phenotypes for gene: HIST1H4D were set to Neurodevelopmental disorder, HIST1H4D-related MONDO:0700092 Review for gene: HIST1H4D was set to AMBER gene: HIST1H4D was marked as current diagnostic Added comment: Single individual described with a de novo missense variant Arg41His (Arg40 in H4 nomenclature). Apart from language delay and moderate ID, phenotypes included facial dysmorphisms and cochlear abnormalities and arhinencephaly on MRI. Hearing was normal. Birth length, OFC, weight were all reduced (-2 to -2.5SD). A zebrafish model has developmental defects. Sources: Literature |
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| Mendeliome v0.11097 | NAV2 | Alison Yeung Added comment: Comment when marking as ready: Single reported individual. Functional studies and mouse model supportive evidence. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11095 | NRCAM |
Ee Ming Wong gene: NRCAM was added gene: NRCAM was added to Mendeliome. Sources: Literature Mode of inheritance for gene: NRCAM was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NRCAM were set to PMID: 35108495 Phenotypes for gene: NRCAM were set to neurodevelopmental disorder, MONDO:0700092 Penetrance for gene: NRCAM were set to unknown Review for gene: NRCAM was set to GREEN gene: NRCAM was marked as current diagnostic Added comment: -Ten individuals from 8 families with developmental delay/intellectual disability, hypotonia, peripheral neuropathy, and/or spasticity. - Affected individuals are biallelic for missense and/or LoF variants which are mainly in the fibronectin type III (Fn-III) domain - Zebrafish mutants lacking the third Fn-III domain displayed significantly altered swimming behavior compared to wild-type larvae (p < 0.03) and a trend toward increased amounts of alpha-tubulin fibers in the dorsal telencephalon, demonstrating an alteration in white matter tracts and projections Sources: Literature |
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| Mendeliome v0.11092 | CRLS1 |
Michelle Torres gene: CRLS1 was added gene: CRLS1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CRLS1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CRLS1 were set to 35147173 Phenotypes for gene: CRLS1 were set to Mitochondrial disease MONDO:0044970 CRLS1-related Added comment: - Three families (4 individuals) with cardiolipin deficiency. - Two families (one consanguineous with 2 affected siblings) with homozygous the p.(Ile109Asn) had infantile progressive encephalopathy, bull’s eye maculopathy, auditory neuropathy, diabetes insipidus, autonomic instability, cardiac defects and early death. - The fourth individual cHet p.(Ala172Asp) and p.(Leu217Phe) presented with chronic encephalopathy with neurodevelopmental regression, congenital nystagmus with decreased vision, sensorineural hearing loss, failure to thrive and acquired microcephaly. - Functional studies on patient cells showed increased levels of the substrate of CRLS1 and impaired mitochondrial morphology and biogenesis Sources: Literature |
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| Mendeliome v0.11092 | ZBTB7A |
Daniel Flanagan gene: ZBTB7A was added gene: ZBTB7A was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: ZBTB7A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ZBTB7A were set to 34515416; 31645653 Phenotypes for gene: ZBTB7A were set to Macrocephaly, neurodevelopmental delay, lymphoid hyperplasia, and persistent fetal hemoglobin (MIM#619769) Review for gene: ZBTB7A was set to GREEN Added comment: PMID: 34515416. Monoallelic ZBTB7A variants identified in 12 individuals from 11 families, with macrocephaly (11/12), some degree of ID (12/12), autistic features (7/12) and hypertrophy of pharyngeal lymphoid tissue (12/12). Variants included LoF variants and missense, 8 variants were de novo. PMID: 31645653. De novo ZBTB7A missense identified in a boy with macrocephaly, intellectual disability, and sleep apnea. Sources: Expert list |
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| 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 |
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| 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 |
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| Mendeliome v0.11078 | AP3D1 | Zornitza Stark edited their review of gene: AP3D1: Added comment: Now four affected individuals from two unrelated families, with a mouse model that recapitulates the human phenotype.; Changed rating: GREEN; Changed publications: 26744459, 9697856, 30472485; Changed phenotypes: Hermansky-Pudlak syndrome 10, MIM# 617050, Oculocutaneous albinism, Severe neutropaenia, Recurrent infections, Seizures, Hearing loss, Neurodevelopmental delay | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11071 | CHKA |
Konstantinos Varvagiannis gene: CHKA was added gene: CHKA was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CHKA was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CHKA were set to 35202461 Phenotypes for gene: CHKA were set to Abnormal muscle tone; Global developmental delay; Intellectual disability; Seizures; Microcephaly; Abnormality of movement; Abnormality of nervous system morphology; Short stature Penetrance for gene: CHKA were set to Complete Review for gene: CHKA was set to GREEN Added comment: Klöckner (2022 - PMID: 35202461) describe the phenotype of 6 individuals (from 5 unrelated families) harboring biallelic CHKA variants. Shared features incl. abnormal muscle tone(6/6 - hypertonia or hypotonia, 3/6 each), DD/ID (6/6,severe in 4, severe/profound in 2), epilepsy (6/6 - onset: infancy - 3y2m | epileptic spasms or GS at onset), microcephaly (6/6), movement disorders (3/6 - incl. dyskinesia, rigidity, choreoatetotic movements). 2/5 individuals exhibited MRI abnormalities, notably hypomyelination. Short stature was observed in 4/6. Eventual previous genetic testing was not discussed. Exome sequencing (quattro ES for 2 sibs, trio ES for 1 individual, singleton for 3 probands) revealed biallelic CHKA variants in all affected individuals. Sanger sequencing was performed for confirmation and segregation studies. Other variants (in suppl.) were not deemed to be causative for the neurodevelopmental phenotype. 3 different missense, 1 start-loss and 1 truncating variant were identified, namely (NM_0012772.2): - c.421C>T/p.(Arg141Trp) [3 hmz subjects from 2 consanguineous families], - c.580C>T/p.Pro194Ser [1 hmz individual born to consanguineous parents], - c.2T>C/p.(Met1?) [1 hmz individual born to related parents], - c.14dup/p.(Cys6Leufs*19) in trans with c.1021T>C/p.(Phe341Leu) in 1 individual. CHKA encodes choline kinase alpha, an enzyme catalyzing the first step of phospholipid synthesis in the Kennedy pathway. The pathway is involved in de novo synthesis of glycerophospholipids, phosphatidylcholine and phosphatidylethanolamine being the most abundant in eukaryotic membranes. CHKA with its paralog (CHKB) phosphorylates either choline or ethanolamine to phosphocholine or phosphoethanolamine respectively with conversion of ATP to ADP. As the authors comment, biallelic pathogenic variants in CHKB cause a NDD with muscular dystrophy, hypotonia, ID, microcephaly and structural mitochondrial anomalies (MIM 602541). [Prominent mitochondrial patterning was observed in a single muscle biopsy available from an individual with biallelic CHKA variants]. Other disorders of the Kennedy pathway (due to biallelic PCYT2, SELENOI, PCYT1A variants) present with overlapping features incl. variable DD/ID (no-severe), microcephaly, seizures, visual impairment etc. CHKA variants were either absent or observed once in gnomAD, affected highly conserved AAs with multiple in silico predictions in favor of a deleterious effect. In silico modeling suggests structural effects for several of the missense variants (Arg141Trp, Pro194Ser presumably affect ADP binding, Phe341 lying close to the binding site of phosphocholine). Each of the missense variants was expressed in yeast cells and W. Blot suggested expression at the expected molecular weight at comparative levels. The 3 aforementioned variants exhibited reduced catalytic activity (20%, 15%, 50% respectively). NMD is thought to underly the deleterious effect of the frameshift one (not studied). The start-loss variant is expected to result in significantly impaired expression and protein function as eventual utilization of the next possible start codon - occurring at position 123 - would remove 26% of the protein. Chka(-/-) is embryonically lethal in mice, suggesting that complete loss is not compatible with life. Reduction of choline kinase activity by 30% in heterozygous mice did not appear to result in behavioral abnormalities although this was not studied in detail (PMID cited: 18029352). Finally, screening of 1566 mouse lines identified 198 genes whose disruption yields neuroanatomical phenotypes, Chka(+/-) mice being among these (PMID cited: 31371714). There is no associated phenotype in OMIM, Gene2Phenotype or SysID. Overall this gene can be considered for inclusion in the ID and epilepsy panes with green or amber rating (>3 individuals, >3 variants, variant studies, overlapping phenotype of disorders belonging to the same pathway, etc). Consider also inclusion in the microcephaly panel (where available this seemed to be of postnatal onset). Sources: Literature |
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| Mendeliome v0.11040 | C17orf53 |
Zornitza Stark gene: C17orf53 was added gene: C17orf53 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: C17orf53 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: C17orf53 were set to 34707299; 31467087 Phenotypes for gene: C17orf53 were set to Primary ovarian insufficiency Review for gene: C17orf53 was set to AMBER Added comment: PMID: 34707299. Homozygous LOF variant in individual with primary ovarian insufficiency PMID: 31467087. Mice with targeted mutations in Hrob are infertile due to depletion of germ cells. Sources: Expert Review |
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| 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 |
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| 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 | FUZ |
Ain Roesley gene: FUZ was added gene: FUZ was added to Mendeliome. Sources: Literature Mode of inheritance for gene: FUZ was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: FUZ were set to 21840926 Phenotypes for gene: FUZ were set to {Neural tube defects, susceptibility to} MIM#182940 Penetrance for gene: FUZ were set to unknown Review for gene: FUZ was set to RED gene: FUZ was marked as current diagnostic Added comment: Spina bifida cohort. Negative for VANGL1 and VANGL2, only FUZ was sequenced. Variants identified in 5 individuals. Arg404Gln (39 hets in gnomAD) and Asp354Tyr (6 hets in gnomAD). These variants are listed as risk factor in ClinVar Pro39Ser (absent in gnomAD) was de novo by parental sanger and showed reduced cell mobility on scratch assays. 2 other variants Gly140Glu and Ser142Thr were deemed non-causative due to poor in silicos and conservation Finally, hom KO mouse models were done to prove neural tube defects Sources: Literature |
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| Mendeliome v0.10953 | FGF17 |
Ain Roesley changed review comment from: 31200363; 1x individual 31748124 3x unrelated individuals. 1 has p.48_52del and another variant in OTUD4 (no current mendelian disease association), 1x with Pro120Leu (5 hets in gnomAD) and 1x with Lys191Arg (55 hets in gnomad) 23643382 3x unrelated individuals, including 1 large consanguineous 10-generation French Canadian family. In this large family, 3 other variants in FGFR1, HS6ST1, and FLRT3 were identified. None of the other affecteds carried the FGF17 variant Summary: 3x individuals with convincing evidence; to: PMID:31200363; 1x individual PMID:31748124 3x unrelated individuals. 1 has p.48_52del and another variant in OTUD4 (no current mendelian disease association), 1x with Pro120Leu (5 hets in gnomAD) and 1x with Lys191Arg (55 hets in gnomad) PMID:23643382 3x unrelated individuals, including 1 large consanguineous 10-generation French Canadian family. In this large family, 3 other variants in FGFR1, HS6ST1, and FLRT3 were identified. None of the other affecteds carried the FGF17 variant Summary: 3x individuals with convincing evidence |
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| 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. |
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| 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 |
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| Mendeliome v0.10938 | THUMPD1 |
Chern Lim changed review comment from: Broly, M. et al. (2022), AJHG: - 13 individuals from 8 families, loss of function variants (PTVs, one missense, one single AA del). - Common phenotypic findings included global developmental delay, speech delay, moderate to severe intellectual deficiency, behavioral abnormalities such as angry outbursts, facial dysmorphism and ophthalmological abnormalities. Sources: Other; to: Broly, M. et al. (2022), AJHG: - 13 individuals from 8 families, biallelic loss of function variants (PTVs, one missense, one single AA del). - Common phenotypic findings included global developmental delay, speech delay, moderate to severe intellectual deficiency, behavioral abnormalities such as angry outbursts, facial dysmorphism and ophthalmological abnormalities. Sources: Other |
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| Mendeliome v0.10938 | THUMPD1 |
Chern Lim changed review comment from: Broly, M. et al. (2022): - 13 individuals from 8 families, loss of function variants (PTVs, one missense, one single AA del). - Common phenotypic findings included global developmental delay, speech delay, moderate to severe intellectual deficiency, behavioral abnormalities such as angry outbursts, facial dysmorphism and ophthalmological abnormalities. Sources: Other; to: Broly, M. et al. (2022), AJHG: - 13 individuals from 8 families, loss of function variants (PTVs, one missense, one single AA del). - Common phenotypic findings included global developmental delay, speech delay, moderate to severe intellectual deficiency, behavioral abnormalities such as angry outbursts, facial dysmorphism and ophthalmological abnormalities. Sources: Other |
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| Mendeliome v0.10938 | THUMPD1 |
Chern Lim changed review comment from: Broly, M. et al. (2022) manuscript accepted in AJHG: - 13 individuals from 8 families, loss of function variants (PTVs, one missense, one single AA del). - Common phenotypic findings included global developmental delay, speech delay, moderate to severe intellectual deficiency, behavioral abnormalities such as angry outbursts, facial dysmorphism and ophthalmological abnormalities. Sources: Other; to: Broly, M. et al. (2022): - 13 individuals from 8 families, loss of function variants (PTVs, one missense, one single AA del). - Common phenotypic findings included global developmental delay, speech delay, moderate to severe intellectual deficiency, behavioral abnormalities such as angry outbursts, facial dysmorphism and ophthalmological abnormalities. Sources: Other |
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| Mendeliome v0.10938 | THUMPD1 |
Chern Lim gene: THUMPD1 was added gene: THUMPD1 was added to Mendeliome. Sources: Other Mode of inheritance for gene: THUMPD1 was set to BIALLELIC, autosomal or pseudoautosomal Phenotypes for gene: THUMPD1 were set to Syndromic form of intellectual disability associated with developmental delay, behavioral abnormalities, hearing loss and facial dysmorphism, AR Review for gene: THUMPD1 was set to GREEN gene: THUMPD1 was marked as current diagnostic Added comment: Broly, M. et al. (2022) manuscript accepted in AJHG: - 13 individuals from 8 families, loss of function variants (PTVs, one missense, one single AA del). - Common phenotypic findings included global developmental delay, speech delay, moderate to severe intellectual deficiency, behavioral abnormalities such as angry outbursts, facial dysmorphism and ophthalmological abnormalities. Sources: Other |
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| 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 |
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| Mendeliome v0.10849 | SEZ6 |
Paul De Fazio gene: SEZ6 was added gene: SEZ6 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SEZ6 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SEZ6 were set to 34135477 Phenotypes for gene: SEZ6 were set to Nonsyndromic genetic hearing loss MONDO:0019497, SEZ6-related Review for gene: SEZ6 was set to RED gene: SEZ6 was marked as current diagnostic Added comment: Homozygous missense variant p.(Val698Ile) identified in 4 affected individuals from a single consanguineous Pakistani family by WES. 5 other genotyped unaffected individuals were heterozygous or homozygous wild-type. Variant is in gnomad (36 hets, 0 hom). RNA expression studies show the gene is expressed in the mouse inner ear, but no functional studies were performed on the variant (in silico analysis only). Sources: Literature |
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| Mendeliome v0.10844 | ATP5O |
Ain Roesley gene: ATP5O was added gene: ATP5O was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ATP5O was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ATP5O were set to 34954817 Phenotypes for gene: ATP5O were set to mitochondrial disease, ATP5F1E-related MONDO:0044970 Penetrance for gene: ATP5O were set to Complete Review for gene: ATP5O was set to RED gene: ATP5O was marked as current diagnostic Added comment: Now known as ATP5PO (HGNC) 1 compound het individual with dev delay, muscular hypotonia, ID, dystonia, seizures and neurologic regression Sources: Literature |
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| Mendeliome v0.10844 | BAP1 |
Anna Ritchie changed review comment from: 11 de novo germline heterozygous missense BAP1 variants associated with a rare syndromic neurodevelopmental disorder. Functional analysis showed that most of the variants cannot rescue the consequences of BAP1 inactivation, suggesting a loss-of-function mechanism. All affected individuals harboring a de novo BAP1 variant had DD or ID (11/11) characterized notably by speech (11/ 11) and motor delay (6/11). Most of them had hypotonia (7/11), seizures (6/11), and abnormal behavior (8/10), including autism spectrum disorder, attention deficit hyperactivity disorder, and hypersensitivity. Almost all individuals showed dysmorphic facial features (10/11), and more than half (6/11) had skeletal mal- formations (involving the hands [4/11], feet [3/11], or spine [2/11],). Most of the individuals had growth failure (9/11), including four individuals with a very short stature. Sources: Literature; to: 11 de novo germline heterozygous missense BAP1 variants associated with a rare syndromic neurodevelopmental disorder. Functional analysis showed that most of the variants cannot rescue the consequences of BAP1 inactivation, suggesting a loss-of-function mechanism. All affected individuals harboring a de novo BAP1 variant had DD or ID (11/11) characterized notably by speech (11/ 11) and motor delay (6/11). Most of them had hypotonia (7/11), seizures (6/11), and abnormal behavior (8/10), including autism spectrum disorder, attention deficit hyperactivity disorder, and hypersensitivity. Almost all individuals showed dysmorphic facial features (10/11), and more than half (6/11) had skeletal malformations (involving the hands [4/11], feet [3/11], or spine [2/11]). Most of the individuals had growth failure (9/11), including four individuals with a very short stature. Sources: Literature |
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| Mendeliome v0.10844 | BAP1 |
Anna Ritchie changed review comment from: 11 de novo germline heterozygous missense BAP1 variants associated with a rare syndromic neurodevelopmental disorder. Functional analysis showed that most of the variants cannot rescue the consequences of BAP1 inactivation, suggesting a loss-of-function mechanism. Patients phenotypes also included developmental delay, speech and motor delay, seizures, hypotonia, abnormal behaviour, autism, attention deficit hyperactivity disorder, and hypersensitivity. Sources: Literature; to: 11 de novo germline heterozygous missense BAP1 variants associated with a rare syndromic neurodevelopmental disorder. Functional analysis showed that most of the variants cannot rescue the consequences of BAP1 inactivation, suggesting a loss-of-function mechanism. All affected individuals harboring a de novo BAP1 variant had DD or ID (11/11) characterized notably by speech (11/ 11) and motor delay (6/11). Most of them had hypotonia (7/11), seizures (6/11), and abnormal behavior (8/10), including autism spectrum disorder, attention deficit hyperactivity disorder, and hypersensitivity. Almost all individuals showed dysmorphic facial features (10/11), and more than half (6/11) had skeletal mal- formations (involving the hands [4/11], feet [3/11], or spine [2/11],). Most of the individuals had growth failure (9/11), including four individuals with a very short stature. Sources: Literature |
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| 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 |
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| 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 |
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| Mendeliome v0.10835 | MAN2C1 |
Michelle Torres gene: MAN2C1 was added gene: MAN2C1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MAN2C1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: MAN2C1 were set to 35045343 Phenotypes for gene: MAN2C1 were set to neurodevelopmental disorder MONDO:0700092 MAN2C1-related Review for gene: MAN2C1 was set to GREEN Added comment: Six individuals from four different families, including two fetuses, exhibiting dysmorphic facial features, congenital anomalies such as tongue hamartoma, variable degrees of intellectual disability, and brain anomalies including polymicrogyria, interhemispheric cysts, hypothalamic hamartoma, callosal anomalies, and hypoplasia of brainstem and cerebellar vermis. Variants include PTC and missense. Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 v0.10637 | 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 |
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| Mendeliome v0.10570 | CRACR2A | Zornitza Stark Added comment: Comment when marking as ready: Single individual. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| Mendeliome v0.10553 | DNHD1 |
Daniel Flanagan gene: DNHD1 was added gene: DNHD1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: DNHD1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DNHD1 were set to 34932939 Phenotypes for gene: DNHD1 were set to Male infertility due to sperm motility disorder (MONDO:0018395) Review for gene: DNHD1 was set to GREEN Added comment: Biallelic DNHD1 variants identified in 8 unrelated probands with asthenoteratozoospermia, reduced sperm motility and abnormal sperm morphology. DNHD1 knockout mice were infertile and had significantly reduced sperm concentration and motility rates, consistent with human individuals. Sources: Literature |
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| 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 |
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| 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. |
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| Mendeliome v0.10510 | NAA20 |
Zornitza Stark gene: NAA20 was added gene: NAA20 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: NAA20 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NAA20 were set to 34230638 Phenotypes for gene: NAA20 were set to Intellectual disability; Microcephaly; Neurodevelopmental disorder MONDO:0700092 Review for gene: NAA20 was set to GREEN Added comment: 2 consanguineous families with 5 affected individuals with developmental delay, intellectual disability, and microcephaly (-2-4SD). Exome and genome sequencing identified 2 different homozygous variants in NAA20 gene (p.Met54Val and p.Ala80Val), and segregated with affected individuals. N-terminal acetyltransferases modify proteins by adding an acetyl moiety to the first amino acid and are vital for protein and cell function. The NatB complex acetylates 20% of the human proteome and is composed of the catalytic subunit NAA20 and the auxiliary subunit NAA25. Both NAA20-M54V and NAA20-A80V were impaired in their capacity to form a NatB complex with NAA25, and in vitro acetylation assays revealed reduced catalytic activities toward different NatB substrates. Sources: Literature |
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| 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). |
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| Mendeliome v0.10415 | SETBP1 |
Zornitza Stark changed review comment from: GoF variants cause Schinzel-Giedion syndrome, whereas LoF variants cause SETBP1-haploinsufficiency syndrome, over 40 individuals reviewed in PMID 34807554.; to: GoF variants cause Schinzel-Giedion syndrome, a severe multi-system disorder characterized by recognizable facial characteristics, severe-profound intellectual disability, intractable epilepsy, cortical visual impairment, deafness, and congenital anomalies such as cardiac defects, urogenital defects, and bone abnormalities. Causative pathogenic variants are clustered within a 12-base pair hot spot region in exon 4. LoF variants cause SETBP1-haploinsufficiency syndrome, characterized by hypotonia and mild motor developmental delay; intellectual abilities ranging from normal to severe disability; speech and language disorder; behavioral problems (most commonly attention/concentration deficits and hyperactivity, impulsivity), and refractive errors and strabismus. Over 40 individuals reviewed in PMID 34807554. |
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| 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 |
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| 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). |
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| 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 v0.10250 | 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. |
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| 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 |
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| 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 |
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| Mendeliome v0.10194 | CHRNA3 |
Zornitza Stark changed review comment from: Five individuals from three unrelated families.; to: Five individuals from three unrelated families. Onset is in utero or early childhood. Affected individuals have impaired neuronal bladder and ureteral innervation causing coordination defects that result in secondary structural defects of the renal system, including hydronephrosis, vesicoureteral reflux (VUR), and small kidneys, that may result in chronic kidney disease as well as recurrent urinary tract infections (UTIs). Surgical treatment of VUR is not effective. Most individuals also have additional autonomic features, most commonly impaired pupillary reflex and sometimes orthostatic hypotension. |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.10054 | MMP15 |
Zornitza Stark gene: MMP15 was added gene: MMP15 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MMP15 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: MMP15 were set to 33875846 Phenotypes for gene: MMP15 were set to Cholestasis; Congenital heart disease Review for gene: MMP15 was set to AMBER Added comment: Three individuals from two families with bi-allelic variants and very similar phenotype including rare combination of symtoms (Alagille-like) cholestasis with hepatomegaly and congenital heart disease. Sources: Literature |
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| 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 |
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| 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. |
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| 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 |
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| 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 |
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| Mendeliome v0.10013 | ARPC4 |
Bryony Thompson gene: ARPC4 was added gene: ARPC4 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ARPC4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ARPC4 were set to DOI:https://doi.org/10.1016/j.xhgg.2021.100072 Phenotypes for gene: ARPC4 were set to Microcephaly; mild motor delays; significant speech impairment Review for gene: ARPC4 was set to GREEN Added comment: 7 affected individuals from 6 families (gonadal mosaicism was confirmed in the mother of the 2 affected siblings) with a recurrent missense variant (NM_005718.4:c.472C>T; p.R158C). The variant was associated with a decreased amount of F-actin in cells from two affected individuals. Sources: Literature |
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| Mendeliome v0.9979 | SMAD2 | Melanie Marty changed review comment from: 9 individuals from 5 families with wide spectrum of autosomal dominant aortic and arterial aneurysmal disease combined with connective tissue disease similar to Marfan syndrome and Loeys-Dietz syndrome.; to: 10 individuals from 5 families with wide spectrum of autosomal dominant aortic and arterial aneurysmal disease combined with connective tissue disease similar to Marfan syndrome and Loeys-Dietz syndrome. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| 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 |
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| 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. |
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| Mendeliome v0.9774 | SPATA5L1 | Zornitza Stark changed review comment from: Note some of the affected individuals had isolated deafness, hence two OMIM phenotypes have been associated with this gene. All were of Ashkenazi Jewish origin, and had the p.Ile466Met founder variant, either hmz or compound het with another variant.; to: Note some of the affected individuals had isolated deafness, hence two OMIM phenotypes have been associated with this gene. All were of Ashkenazi Jewish origin, and had the p.Ile466Met founder variant, compound het with another variant. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9774 | SPATA5L1 | Zornitza Stark edited their review of gene: SPATA5L1: Added comment: Note some of the affected individuals had isolated deafness, hence two OMIM phenotypes have been associated with this gene. All were of Ashkenazi Jewish origin, and had the p.Ile466Met founder variant, either hmz or compound het with another variant.; Changed publications: 34626583; Changed phenotypes: Neurodevelopmental disorder with hearing loss and spasticity, MIM# 619616, Deafness, autosomal recessive 119, MIM# 619615 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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. |
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| 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. |
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| 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 |
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| 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. |
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| 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 |
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| 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 v0.9581 | 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 |
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| Mendeliome v0.9569 | KIAA0391 |
Lucy Spencer changed review comment from: Four unrelated families with multisystem disease associated with bi-allelic variants in PRORP. Affected individuals presented with variable phenotypes comprising sensorineural hearing loss, primary ovarian insufficiency, developmental delay, and brain white matter changes. -1 consanguineous family with homozygous missense in 3 affected sisters, het parents unaffected. Siblings had profound bilateral SNHL in infancy. In teens developed primary amenorrhea/Perrault syndrome, and hypergonadotropic hypogonadism. -1 unrelated male with compound het missense, each inherited from an unaffected parent. Hearing loss noted at 3, diagnosed at 5. -1 unrelated male compound het for a missense and a frameshift. appendicular hypertonia in infancy, mild dysmorphism. Severe global dev delay at 20 months. Normal hearing at 18 months, but at 3 years had bilateral SNHL. -an affected mother and her 2 affected children (son and daughter), homozygous for a missense. Father is heterozygous and unaffected. Son has psychotic disorder, autistic traits. Sister had intrauterine growth retardation, global developmental delay, and seizures in the first years of life. Mother presented with retrobulbar optic neuritis and tonic pupil at 39 years of age, then with asthenia, myalgias, memory loss, and frequent headaches. All variants are in p.400s. Sources: Literature; to: Four unrelated families with multisystem disease associated with bi-allelic variants in PRORP. Affected individuals presented with variable phenotypes comprising sensorineural hearing loss, primary ovarian insufficiency, developmental delay, and brain white matter changes. -1 consanguineous family with homozygous missense in 3 affected sisters, het parents unaffected. Siblings had profound bilateral SNHL in infancy. In teens developed primary amenorrhea/Perrault syndrome, and hypergonadotropic hypogonadism. -1 unrelated male with compound het missense, each inherited from an unaffected parent. Hearing loss noted at 3, diagnosed at 5. -1 unrelated male compound het for a missense and a frameshift. appendicular hypertonia in infancy, mild dysmorphism. Severe global dev delay at 20 months. Normal hearing at 18 months, but at 3 years had bilateral SNHL. -an affected mother and her 2 affected children (son and daughter), homozygous for a missense. Father is heterozygous and unaffected. Son has psychotic disorder, autistic traits. Sister had intrauterine growth retardation, global developmental delay, and seizures in the first years of life. Mother presented with retrobulbar optic neuritis and tonic pupil at 39 years of age, then with asthenia, myalgias, memory loss, and frequent headaches. All variants are in p.400s. Sources: Literature |
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| Mendeliome v0.9567 | KIAA0391 |
Lucy Spencer gene: KIAA0391 was added gene: KIAA0391 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: KIAA0391 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: KIAA0391 were set to PMID: 34715011 Added comment: Four unrelated families with multisystem disease associated with bi-allelic variants in PRORP. Affected individuals presented with variable phenotypes comprising sensorineural hearing loss, primary ovarian insufficiency, developmental delay, and brain white matter changes. -1 consanguineous family with homozygous missense in 3 affected sisters, het parents unaffected. Siblings had profound bilateral SNHL in infancy. In teens developed primary amenorrhea/Perrault syndrome, and hypergonadotropic hypogonadism. -1 unrelated male with compound het missense, each inherited from an unaffected parent. Hearing loss noted at 3, diagnosed at 5. -1 unrelated male compound het for a missense and a frameshift. appendicular hypertonia in infancy, mild dysmorphism. Severe global dev delay at 20 months. Normal hearing at 18 months, but at 3 years had bilateral SNHL. -an affected mother and her 2 affected children (son and daughter), homozygous for a missense. Father is heterozygous and unaffected. Son has psychotic disorder, autistic traits. Sister had intrauterine growth retardation, global developmental delay, and seizures in the first years of life. Mother presented with retrobulbar optic neuritis and tonic pupil at 39 years of age, then with asthenia, myalgias, memory loss, and frequent headaches. All variants are in p.400s. Sources: Literature |
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| Mendeliome v0.9566 | MLIP |
Michelle Torres gene: MLIP was added gene: MLIP was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MLIP was set to BIALLELIC, autosomal or pseudoautosomal Phenotypes for gene: MLIP were set to 34581780 Review for gene: MLIP was set to GREEN Added comment: PMID: 34581780: 7 individuals with 6 families with truncating (one splice that also resulted in a frameshift variant) biallelic variants (used NM_1281746). In 3 patients patients’ skeletal muscle, these variants were shown to cause reduction overall RNA expression levels of the predominant MLIP isoform. Patients presented with a consistent phenotype characterized by mild muscle weakness, exercise-induced muscle pain, variable susceptibility to episodes of rhabdomyolysis, and persistent basal elevated serum creatine kinase levels. Sources: Literature |
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| 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 |
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| Mendeliome v0.9563 | SPRED2 |
Dean Phelan gene: SPRED2 was added gene: SPRED2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SPRED2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SPRED2 were set to PMID: 34626534 Phenotypes for gene: SPRED2 were set to developmental delay; intellectual disability; cardiac defects; short stature; skeletal anomalies; a typical facial gestalt Review for gene: SPRED2 was set to GREEN Added comment: PMID: 34626534 Homozygosity for three different variants c.187C>T (p.Arg63∗), c.299T>C (p.Leu100Pro), and c.1142_1143delTT (p.Leu381Hisfs∗95) were identified in four subjects from three families. All variants severely affected protein stability, causing accelerated degradation, and variably perturbed SPRED2 functional behaviour. The clinical phenotype of the four affected individuals included developmental delay, intellectual disability, cardiac defects, short stature, skeletal anomalies, and a typical facial gestalt as major features, without the occurrence of the distinctive skin signs characterizing Legius syndrome. Sources: Literature |
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| Mendeliome v0.9563 | KPNA3 |
Ain Roesley gene: KPNA3 was added gene: KPNA3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: KPNA3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: KPNA3 were set to 34564892 Phenotypes for gene: KPNA3 were set to infantile onsetHereditary Spastic Paraplegia Penetrance for gene: KPNA3 were set to Complete Review for gene: KPNA3 was set to GREEN gene: KPNA3 was marked as current diagnostic Added comment: 8 affecteds from 5 families with infantile-onset pure HSP all missense variants, in vitro functional demonstrated reduced cargo binding Noted that 1 individual had 2 de novo missense in the gene and though 1 is less deleterious than the other in the functional assays, authors were not able to rule out either one as a VUS Sources: Literature |
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| 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 |
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| 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. |
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| Mendeliome v0.9437 | IFT74 | Zornitza Stark edited their review of gene: IFT74: Added comment: Limited evidence for association with spermatogenic failure: two unrelated individuals with same homozygous missense variant.; Changed publications: 27486776, 32144365, 33531668, 33689014; Changed phenotypes: Bardet-Biedl syndrome 20, MIM# 617119, Joubert syndrome, Spermatogenic failure 58, MIM# 619585 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9383 | KCNQ1OT1 |
Zornitza Stark gene: KCNQ1OT1 was added gene: KCNQ1OT1 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: KCNQ1OT1 was set to MONOALLELIC, autosomal or pseudoautosomal, maternally imprinted (paternal allele expressed) Publications for gene: KCNQ1OT1 were set to 22205991; 15372379; 23511928; 30794780; 29377879; 10220444; 32447323; 33177595; 29047350 Phenotypes for gene: KCNQ1OT1 were set to Beckwith-Wiedemann syndrome OMIM:130650; Russell-Silver Syndrome Review for gene: KCNQ1OT1 was set to AMBER Added comment: Limited evidence that isolated intragenic variation in KCNQ1OT1 is definitively associated with a phenotype. KCNQ1OT1 encodes the regulatory antisense non-coding RNA KCNQ1OT1 (KCNQ1 overlapping) and is located within the KCNQ1OT1:TSS DMR (imprinting control region 2; IC2) at 11p15.5. IC2 is located within KCNQ1 intron 10. KCNQ1OT1 is maternally imprinted and paternally expressed. On the paternal chromosome, KCNQ1OT1 is transcribed and represses in cis the flanking imprinted genes, including the growth inhibitor CDKN1C, which is normally transcribed from the maternal allele. In 50% of the BWS patients, loss of methylation (LOM) of IC2 leads to biallelic expression of KCNQ1OT1 and biallelic silencing of CDKN1C (PMID 30635621). Expression is increased in BWS due to IC2 epimutations or paternal UPD. Single nucleotide variants within KCNQ1OT1 have not been definitively associated with human disease. A heterozygous maternally inherited non-coding variant was identified in an individual with isolated omphalocele. This variant was shown to alter the methylation pattern of the imprinted allele (PMID 29047350). Eggerman et al (PMID 32447323) described a 132 base pair deletion within KCNQ1OT1 associated with growth retardation in the case of paternal but not maternal transmission. This intragenic deletion did not affect IC2 methylation. Microdeletions of IC2 involving KCNQ1OT1 on the paternal allele have been identified in a small number of patients with Russell-Silver syndrome. Similarly, microdeletions of IC2 involving KCNQ1OT1 on the maternal allele have been identified in a small number of patients with BWS. These deletions also variably involve KCNQ1 or CDKN1C. LoF in CDKN1C is a known cause of BWS. There is some evidence to suggest that disruption of KCNQ1 prevents maternal methylation at IC2 (PMID 30778172). Sources: Expert Review |
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| 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 |
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| 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 |
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| Mendeliome v0.9355 | SLC4A3 |
Daniel Flanagan gene: SLC4A3 was added gene: SLC4A3 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: SLC4A3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SLC4A3 were set to PMID: 29167417; 34557911 Phenotypes for gene: SLC4A3 were set to Short QT syndrome Review for gene: SLC4A3 was set to AMBER Added comment: Moderate evidence for autosomal dominant short QT syndrome 1 by ClinGen /gene curation expert panel (PMID: 34557911). A single missense variant (absent gnomAD) identified in two SQTS families. In family 1, it segregated with SQTS (QTc<370ms) in 23 carriers, and 19 non-carriers had a QTc>370ms. In family 2, it segregated in 4 individuals. Experimental evidence from in vitro and zebrafish models suggests reduced membrane localization of the mutated protein leads to intracellular alkalinization and shortening of the cardiomyocyte action potential duration. ClinGen expert panel was divided between strong (4 votes) and moderate (5 votes). Sources: Expert Review |
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| 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 |
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| 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 |
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| Mendeliome v0.9297 | ABHD16A |
Lucy Spencer gene: ABHD16A was added gene: ABHD16A was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ABHD16A was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ABHD16A were set to PMID: 34587489 Phenotypes for gene: ABHD16A were set to Spastic paraplegia Review for gene: ABHD16A was set to GREEN Added comment: 11 individuals from 6 families with a complicated form of hereditary spastic paraplegia who carry bi-allelic deleterious variants in ABHD16A. Affected individuals present with a similar phenotype consisting of global developmental delay/intellectual disability, progressive spasticity affecting the upper and lower limbs, and corpus callosum and white matter anomalies. Immunoblot analysis on extracts from fibroblasts from four affected individuals demonstrated little to no ABHD16A protein levels compared to controls. In 5 of the families the affected members were homozygous, 3 of these families were consanguineous. 2 families have the same variant- both families are French-Canadian. 4 missense variants, 1 frameshift, 1 nonsense. From PMID: 34587489 Sources: Literature |
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| Mendeliome v0.9297 | WLS |
Teresa Zhao changed review comment from: - We identified homozygous mutations in 10 affected persons from 5 unrelated families. - Patients had multiorgan defects, including microcephal, facial dysmorphism, foot syndactyly, renal agenesis, alopecia, iris coloboma, and heart defects. - The mutations affected WLS protein stability and Wnt signaling. Knock-in mice showed tissue and cell vulnerability consistent with Wnt-signaling intensity and individual and collective functions of Wnts in embryogenesis. Sources: Literature; to: - Homozygous mutations in 10 affected persons from 5 unrelated families. - Patients had multiorgan defects, including microcephal, facial dysmorphism, foot syndactyly, renal agenesis, alopecia, iris coloboma, and heart defects. - The mutations affected WLS protein stability and Wnt signaling. Knock-in mice showed tissue and cell vulnerability consistent with Wnt-signaling intensity and individual and collective functions of Wnts in embryogenesis. Sources: Literature |
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| Mendeliome v0.9297 | WLS |
Teresa Zhao gene: WLS was added gene: WLS was added to Mendeliome. Sources: Literature Mode of inheritance for gene: WLS was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: WLS were set to PMID: 34587386 Phenotypes for gene: WLS were set to Syndromic structural birth defects Review for gene: WLS was set to GREEN Added comment: - We identified homozygous mutations in 10 affected persons from 5 unrelated families. - Patients had multiorgan defects, including microcephal, facial dysmorphism, foot syndactyly, renal agenesis, alopecia, iris coloboma, and heart defects. - The mutations affected WLS protein stability and Wnt signaling. Knock-in mice showed tissue and cell vulnerability consistent with Wnt-signaling intensity and individual and collective functions of Wnts in embryogenesis. Sources: Literature |
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| 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 v0.9252 | MAOB |
Zornitza Stark gene: MAOB was added gene: MAOB was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: MAOB was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: MAOB were set to 31700678 Phenotypes for gene: MAOB were set to Cerebral palsy Review for gene: MAOB was set to RED Added comment: Variants identified in 2 unrelated individuals with CP (with same variant also identified in unaffected monozygotic twin). Sources: Expert Review |
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| 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 |
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| 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 |
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| Mendeliome v0.9232 | ALG10 |
Zornitza Stark gene: ALG10 was added gene: ALG10 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ALG10 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ALG10 were set to 33798445 Phenotypes for gene: ALG10 were set to Progressive myoclonus epilepsy; CDG Review for gene: ALG10 was set to RED Added comment: Single individual with homozygous variant identified in a progressive myoclonus epilepsy cohort. Sources: Literature |
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| 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 |
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| 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 |
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| 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 v0.9162 | 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 |
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| Mendeliome v0.9157 | COL14A1 |
Zornitza Stark gene: COL14A1 was added gene: COL14A1 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: COL14A1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: COL14A1 were set to 22972947 Phenotypes for gene: COL14A1 were set to Punctate palmoplantar keratoderma type 1B Review for gene: COL14A1 was set to RED Added comment: 4 affected individuals and 2 unaffected controls from one Chinese PPPK family where disease locus was mapped at 8q24.13-8q24.21 by previous linkage analysis. Exome sequencing analysis identified a heterozygous variant in COL14A1 gene (c.4505C>T (p.Pro1502Leu)). The variant was shared by 4 affected individuals, but not 2 controls of the family. Sanger sequencing confirmed this variant in another four cases from this family. Variant was absent in the normal controls of this family as well as 676 unrelated normal controls and 781 patients with other disease. The missense substitution occurs at a highly conserved amino acid residue across multiple species. Sources: Expert Review |
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| Mendeliome v0.9082 | UBE2U |
Ee Ming Wong changed review comment from: - one missense UBE2U variant identified in one family with four other affected individuals (includes proband) - in silico analyses predicts the UBE2U variant to be damaging - no functional - another STUM missense variant identified in the same family predicted to be benign - additional clinical assessment indicated that the family shared some systemic dysmorphisms and learning disabilities similar to RIDDLE syndrome Sources: Literature; to: - one missense UBE2U variant identified in one family with five affected individuals (includes proband) - in silico analyses predicts the UBE2U variant to be damaging - no functional - another STUM missense variant identified in the same family predicted to be benign - additional clinical assessment indicated that the family shared some systemic dysmorphisms and learning disabilities similar to RIDDLE syndrome Sources: Literature |
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| Mendeliome v0.9075 | UBE2U |
Ee Ming Wong gene: UBE2U was added gene: UBE2U was added to Mendeliome. Sources: Literature Mode of inheritance for gene: UBE2U was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: UBE2U were set to PMID: 33776059 Phenotypes for gene: UBE2U were set to Retinoschisis; cataracts; learning disabilities; developmental delay Penetrance for gene: UBE2U were set to Complete Review for gene: UBE2U was set to RED gene: UBE2U was marked as current diagnostic Added comment: - one missense UBE2U variant identified in one family with four other affected individuals (includes proband) - in silico analyses predicts the UBE2U variant to be damaging - no functional - another STUM missense variant identified in the same family predicted to be benign - additional clinical assessment indicated that the family shared some systemic dysmorphisms and learning disabilities similar to RIDDLE syndrome Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.8987 | FAME2 |
Bryony Thompson STR: FAME2 was added STR: FAME2 was added to Mendeliome. Sources: Literature Mode of inheritance for STR: FAME2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for STR: FAME2 were set to 11701600; 24114805; 31664034 Phenotypes for STR: FAME2 were set to Epilepsy, familial adult myoclonic, 2 MIM#607876 Review for STR: FAME2 was set to GREEN STR: FAME2 was marked as clinically relevant Added comment: NM_020151.3(STARD7):c.291-1572ATTTT[X]ATTTC[X] 158 affected individuals from 22 unrelated families with familial adult myoclonic epilepsy with a heterozygous 5-bp repeat expansion (ATTTC)n in intron 1. Affected individuals had variable expansion of an endogenous (ATTTT)n repeat in addition to the insertion of an abnormal (ATTTC)n repeat, similar molecular finding in other forms of FAME. RNA sequencing from patient derived fibroblasts shows no accumulation of the AUUUU or AUUUC repeat sequences and no effect on STARD7 gene expression, suggesting ATTTC expansions may cause FAME irrespective of the genomic locus involved. Sources: Literature |
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| 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 |
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| 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. |
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| 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. |
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| 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 |
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| 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 |
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| 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 |
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| 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. |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.8824 | PLXNA2 |
Zornitza Stark gene: PLXNA2 was added gene: PLXNA2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PLXNA2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PLXNA2 were set to 34327814 Phenotypes for gene: PLXNA2 were set to Intellectual disability; Abnormality of the face; Failure to thrive; Abnormal heart morphology Review for gene: PLXNA2 was set to AMBER Added comment: Altuame et al (2021 - PMID: 34327814) describe 3 individuals from 2 consanguineous Arab families with biallelic PLXNA2 variants. The index patient from the 1st family presented with CHD (hypoplastic right ventricle, ASD), DD and moderate ID (IQ of 40), failure to thrive as well as some dysmorphic features (obtuse mandibular angle, mild overbite, synophrys with downslanting p-f, strabismus, etc). There were additional features (eg. postaxial polydactyly) which were found in other affected and unaffected family members. Exome sequencing with autozygome analysis revealed homozygosity for a PLXNA2 stopgain variant (NM_025179:c.3603C>A / p.(Cys1201*)). Sanger confirmation was carried out and segregation analyses confirmed carrier status of the unaffected parents and a sib as well as a brother homozygous for the same variant. Clinical evaluation of the latter, following this finding revealed borderline intellectual functioning, ADHD, failure to thrive. There was no mandibular anomaly or overbite and no clinical evidence of CHD (no echo performed). The index patient from the 2nd consanguineous family was evaluated for ID (IQ of 63), with previous borderline motor development, ADHD and some dysmorphic features (obtuse mandibular angle and overbite). There was no clinical evidence of CHD (no echo performed). Exome sequencing with autozygosity mapping revealed a homozygous missense PLXNA2 variant (c.3073G>A / p.(Asp1025Asn), present only once in gnomAD (htz), with rather non-concordant in silico predictions SIFT 0.22, PolyPhen 0.682 and CADD 23.5. The aa was however highly conserved. Segregation analysis confirmed carrier state of the parents and 2 unaffected sibs, with a 3rd sib homozygous for the wt allele. As the authors discuss: *PLXNA2 belongs to the plexin family of genes, encoding transmbembrane proteins functioning as semaphorin receptors. It has predominant expression in neural tissue. The protein is thought to bind semaphorin-3A, -3C or -5 followed by plexin A2 dimerization, activation of its GTPase-activating protein domain, negative regulation of Rap1B GTPase and initiation of a signal transduction cascade mediating axonal repulsion/guidance, dendritic guidance, neuronal migration. *Murine Plxna2 knockout models display structural brain defects. In addition they display congenital heart defects incl. persistent truncus arteriosus and interrupted aortic arch. *Rare CNVs in adult humans with tetralogy of Fallot have suggested a potential role of PLXNA2 in cardiac development and CHD. *Expression and the role of PLXNA2 in human chondrocytes as well as a GWAS in 240 japanese patients with mandibular prognathism where PLXNA2 was suggested as a susceptibility locus. Overall, the authors recognize some common features (as for cognitive functioning, some dysmorphic features incl. obtuse mandibular angle and overbite in 2 unrelated subjects, failure to thrive 3/3) and provide plausible explanations for the variability / discordance of others eg: - Cyanotic heart disease explaining discordance in cognitive outcome among sibs - Incomplete penetrance for CHD (and/or ID or mandibular anomaly) as for few AR disorders and/or - Additional pathogenic variants possibly explaining the CHD in the first subject. There is no associated phenotype in OMIM or G2P. SysID includes PLXNA2 among the candidate ID genes. Sources: Literature |
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| 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 |
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| 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 |
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| 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. |
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| 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 |
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| 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 |
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| Mendeliome v0.8671 | RGS10 |
Zornitza Stark gene: RGS10 was added gene: RGS10 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RGS10 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: RGS10 were set to 34315806; 34339853 Phenotypes for gene: RGS10 were set to Immunodeficiency; short stature Review for gene: RGS10 was set to RED Added comment: Three affected siblings with short stature and immunodeficiency and segregating biallelic variants in RGS10 (c.489_491del:p.E163del and c.G511T:p.A171S). The affected individuals had recurrent infections, hypergammaglobulinaemia, profoundly reduced lymphocyte chemotaxis, abnormal lymph node architecture, and short stature due to growth hormone deficiency. Limited functional data presented. Further experimental data linking RGS10 to immune function presented in PMID 34339853. Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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. |
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| 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 |
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| Mendeliome v0.8600 | AP1G1 |
Danielle Ariti gene: AP1G1 was added gene: AP1G1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: AP1G1 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: AP1G1 were set to 34102099 Phenotypes for gene: AP1G1 were set to Neurodevelopmental disorder (NDD); Intellectual Disability; Epilepsy Mode of pathogenicity for gene: AP1G1 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: AP1G1 was set to GREEN Added comment: Two bi-allelic homozygous missense variants were found in two distinct families with Italian and Pakistani origins; homozygous missense variants. Eight de novo heterozygous variants were identified in nine isolated affected individuals from nine families; including five missense, two frameshift, and one intronic variant that disrupts the canonical splice acceptor site. Knocking out AP1G1 Zebrafish model resulted in severe developmental abnormalities and increased lethality. All individuals had neurodevelopmental disorder (NDD) including global developmental delay and ID, which varied in severity from mild to severe. Sources: Literature |
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| Mendeliome v0.8598 | SPTBN1 |
Belinda Chong changed review comment from: PMID: 34211179 - Heterozygous SPTBN1 variants in 29 individuals with developmental, language and motor delays; mild to severe intellectual disability; autistic features; seizures; behavioral and movement abnormalities; hypotonia; and variable dysmorphic facial features. - Show that these SPTBN1 variants lead to effects that affect βII-spectrin stability, disrupt binding to key molecular partners, and disturb cytoskeleton organization and dynamics. PMID: 33847457 - Common features include global developmental delays, intellectual disability, and behavioral disturbances. Autistic features (4/6) and epilepsy (2/7) or abnormal electroencephalogram without overt seizures (1/7) were present in a subset. - identified seven unrelated individuals with heterozygous SPTBN1 variants: two with de novo missense variants and five with predicted loss-of-function variants (found to be de novo in two, while one was inherited from a mother with a history of learning disabilities). - Identification of loss-of-function variants suggests a haploinsufficiency mechanism, but additional functional studies are required to fully elucidate disease pathogenesis. Sources: Literature; to: PMID: 34211179 - Heterozygous SPTBN1 variants in 29 individuals with developmental, language and motor delays; mild to severe intellectual disability; autistic features; seizures (9/29); behavioral and movement abnormalities; hypotonia; and variable dysmorphic facial features. - Show that these SPTBN1 variants lead to effects that affect βII-spectrin stability, disrupt binding to key molecular partners, and disturb cytoskeleton organization and dynamics. PMID: 33847457 - Common features include global developmental delays, intellectual disability, and behavioral disturbances. Autistic features (4/6) and epilepsy (2/7) or abnormal electroencephalogram without overt seizures (1/7) were present in a subset. - identified seven unrelated individuals with heterozygous SPTBN1 variants: two with de novo missense variants and five with predicted loss-of-function variants (found to be de novo in two, while one was inherited from a mother with a history of learning disabilities). - Identification of loss-of-function variants suggests a haploinsufficiency mechanism, but additional functional studies are required to fully elucidate disease pathogenesis. Sources: Literature |
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| Mendeliome v0.8586 | TP73 |
Ee Ming Wong changed review comment from: - Seven individuals from five unrelated families homozygous for TP73 variants (includes 1x large deletion, 1x splice variant, 1x frameshift and 2x nonsense variants) - Epithelial cells from TP73 variant carriers showed reduced number of ciliated cells and shortened cilia resulting in abnormal ciliary clearance of the airways compared to healthy controls; to: - Seven individuals from five unrelated families homozygous for TP73 variants (includes 1x large deletion, 1x splice variant, 1x frameshift and 2x nonsense variants) - In vitro ciliogenesis experiments demonstrated that epithelial cells from TP73 variant carriers had reduced number of ciliated cells and shortened cilia resulting in abnormal ciliary clearance of the airways compared to healthy controls |
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| Mendeliome v0.8586 | SPTBN1 |
Belinda Chong gene: SPTBN1 was added gene: SPTBN1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SPTBN1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: SPTBN1 were set to PMID: 34211179; PMID: 33847457 Phenotypes for gene: SPTBN1 were set to Neurodevelopmental Syndrome Review for gene: SPTBN1 was set to GREEN Added comment: PMID: 34211179 - Heterozygous SPTBN1 variants in 29 individuals with developmental, language and motor delays; mild to severe intellectual disability; autistic features; seizures; behavioral and movement abnormalities; hypotonia; and variable dysmorphic facial features. - Show that these SPTBN1 variants lead to effects that affect βII-spectrin stability, disrupt binding to key molecular partners, and disturb cytoskeleton organization and dynamics. PMID: 33847457 - Common features include global developmental delays, intellectual disability, and behavioral disturbances. Autistic features (4/6) and epilepsy (2/7) or abnormal electroencephalogram without overt seizures (1/7) were present in a subset. - identified seven unrelated individuals with heterozygous SPTBN1 variants: two with de novo missense variants and five with predicted loss-of-function variants (found to be de novo in two, while one was inherited from a mother with a history of learning disabilities). - Identification of loss-of-function variants suggests a haploinsufficiency mechanism, but additional functional studies are required to fully elucidate disease pathogenesis. Sources: Literature |
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| Mendeliome v0.8586 | EDEM3 |
Michelle Torres gene: EDEM3 was added gene: EDEM3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: EDEM3 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: EDEM3 were set to 34143952 Phenotypes for gene: EDEM3 were set to EDEM3-congenital disorder of glycosylation Review for gene: EDEM3 was set to GREEN Added comment: PMID: 34143952: 7 families (11 individuals) with 6x PTV and 2x missense variants with neurodevelopmental delay and variable facial dysmorphisms. The unaffected parents were all heterozygous carriers. Functional show LoF of EDEM3 enzymatic activity. Sources: Literature |
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| 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 |
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| 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 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 |
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| 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 |
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| 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. --- 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 |
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| Mendeliome v0.8449 | ZNF148 |
Natalie Tan gene: ZNF148 was added gene: ZNF148 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ZNF148 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ZNF148 were set to PMID: 27964749 Phenotypes for gene: ZNF148 were set to Global developmental delay, absent or hypoplastic corpus callosum, and dysmorphic facies; MIM#617260 Review for gene: ZNF148 was set to GREEN Added comment: Four unrelated individuals with de novo heterozygous nonsense or frameshift mutations (all resulting in premature termination codons in the last exon of ZNF148, predicted to escape nonsense-mediated mRNA decay and result in expression of a truncated protein). Phenotype characterised by underdevelopment of the corpus callosum, mild to moderate developmental delay and ID, variable microcephaly or mild macrocephaly, short stature, feeding problems, facial dysmorphisms, and cardiac and renal malformations. No functional studies to date. Sources: Literature |
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| Mendeliome v0.8449 | RAC3 |
Natalie Tan gene: RAC3 was added gene: RAC3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RAC3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: RAC3 were set to PMID: 30293988; 29276006 Phenotypes for gene: RAC3 were set to Neurodevelopmental disorder with structural brain anomalies and dysmorphic facies, MIM#618577 Review for gene: RAC3 was set to GREEN Added comment: Multiple unrelated individuals with heterozygous missense variants and a concordant phenotype (severe intellectual disability with brain malformations). No functional studies to date. Sources: Literature |
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| 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 |
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| 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. |
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| Mendeliome v0.8335 | LINGO4 |
Laura Raiti gene: LINGO4 was added gene: LINGO4 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: LINGO4 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: LINGO4 were set to PMID: 33098801 Phenotypes for gene: LINGO4 were set to Developmental Delay, Intellectual disability, speech disorder Review for gene: LINGO4 was set to GREEN Added comment: 3 unrelated individuals 1 x individual compound heterozygous for 2x missense variants: c.679C>A; c.1262G>A p.Leu227Met; p.Arg421Gln comp het. Phenotype: infancy-onset generalized dystonia; DD/hypo, ID, speech disorder (isolated plus non-MD symptoms) NDD 1 x individual homozygous for missense variant: c.679C>A p.Leu227Met Phenotype: DD/hypo, ID, speech disorder 1 x individual homozygous for missense variant: c.1673G>A p.Ser558Asn Phenotype: DD/hypo, ID, speech disorder Sources: Literature |
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| Mendeliome v0.8335 | ARFGEF3 |
Laura Raiti gene: ARFGEF3 was added gene: ARFGEF3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ARFGEF3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ARFGEF3 were set to PMID: 33098801 Phenotypes for gene: ARFGEF3 were set to Dystonia Review for gene: ARFGEF3 was set to GREEN Added comment: 3 x unrelated individuals 1 x de novo missense variant: c.6212T>C p.Met2071Thr, phenotype: infancy-onset generalized dystonia (isolated) 1x stop-gain variant c.1773T>G p.Tyr591* (inherited from mosaic mother), phenotype: infancy-onset generalized dystonia (isolated) 1 x de novo missense variant (Gene Matcher) c.250A>C p.Met84Leu childhood-onset generalized dystonia (isolated) Sources: Literature |
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| Mendeliome v0.8335 | IMPDH2 |
Laura Raiti gene: IMPDH2 was added gene: IMPDH2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: IMPDH2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: IMPDH2 were set to PMID: 33098801 Phenotypes for gene: IMPDH2 were set to Dystonia Review for gene: IMPDH2 was set to GREEN Added comment: 6 unrelated individuals 1x individual in a dystonia cohort index case with infancy-onset dystonia and other neurological manifestations with a de-novo missense variant, c.338G>A (p.Gly113Glu) in IMPDH2, predicted to disrupt an invariant residue within the cystathionine-β-synthase (CBS) domain pair of the encoded protein. IMPDH2 encodes IMPDH2, a key enzyme in the purine biosynthetic pathway, expressed throughout the brain and not linked previously to any human Mendelian condition. 1x individual with a de-novo substitution, c.337G>A (p.Gly113Arg), was found in in-house whole-exome sequencing data from 500 individuals with neurodevelopmental disorders. Through GeneMatcher, de novo variants identified: 3 x missense: c.729G>C (p.Gln243His), c.619G>C (p.Gly207Arg), and c.619G>A (p.Gly207Arg) 1 x deletion: c.478_480delTCC (p.Ser160del) The six variants were predicted to be deleterious and none of them seen in control databases. All affected conserved amino acids and resided in and around the cystathionine-β-synthase domain pair. The described variants are situated in and around the CBS domain pair, a regulatory element in which clustering of pathogenic missense variants has already been shown for the homologue of IMPDH2, IMPDH1. The variant carriers shared similar neurodevelopmental phenotypes. Apart from the dystonia cohort index case, one participant had evidence of dystonic posturing. Modelling of the variants on 3D protein structures revealed spatial clustering near specific functional sites, predicted to result in deregulation of IMPDH2 activity. Additionally, thermal-shift assays showed that the c.619G>A (p.Gly207Arg) variant, identified as within the CBS domain pair, and c.729G>C (p.Gln243His), which is in close vicinity, affected the stability or folding behaviour of IMPDH2. Sources: Literature |
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| 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. |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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). |
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| 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 |
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| 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. |
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| 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 |
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| 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. |
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| 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 |
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| 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 |
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| 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 v0.8086 | 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 |
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| 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 |
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| 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 |
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| 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 v0.8009 | IFT74 | Zornitza Stark edited their review of gene: IFT74: Added comment: PMID 33531668: Identified IFT74 as a JBTS-associated gene in 3 unrelated families through WES. All the affected individuals carried truncated variants and shared one missense variant (p.Q179E) found only in East Asians. The expression of the human p.Q179E-IFT74 variant displayed compromised rescue effects in zebrafish ift74 morphants. Attenuated ciliogenesis; altered distribution of IFT proteins and ciliary membrane proteins, including ARL13B, INPP5E, and GPR161; and disrupted hedgehog signaling were observed in patient fibroblasts with IFT74 variants.; Changed publications: 27486776, 32144365, 33531668; Changed phenotypes: Bardet-Biedl syndrome 20, MIM# 617119, Joubert syndrome | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.8002 | SEMA3F |
Zornitza Stark gene: SEMA3F was added gene: SEMA3F was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SEMA3F was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SEMA3F were set to 33495532 Phenotypes for gene: SEMA3F were set to Hypogonadotropic hypogonadism Review for gene: SEMA3F was set to GREEN Added comment: Screened 216 patients with Idiopathic hypogonadotropic hypogonadism by exome sequencing. Identified 10 individuals from 7 families with heterozygous SEMA3F missense variants. In 4 of the kindreds, there was at least one more gene known to be associated with IHH (oligogenecity). Provide unequivocal human embryonic data showing the expression of SEMA3F along the developing human GnRH migratory pathway. SEMA3Fs harboring the P452T, T29M, and T724M missense variants showed impaired SEMA3F secretion in whole cell lysates. Sources: Literature |
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| Mendeliome v0.8000 | PLXNA3 |
Zornitza Stark gene: PLXNA3 was added gene: PLXNA3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PLXNA3 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females Publications for gene: PLXNA3 were set to 33495532 Phenotypes for gene: PLXNA3 were set to Hypogonadotropic hypogonadism Review for gene: PLXNA3 was set to GREEN Added comment: Screened 216 patients with Idiopathic hypogonadotropic hypogonadism by exome sequencing. Identified 7 individuals from 5 families with hemizygous PLXNA3 missense variants. In 2 of the kindreds, there was at least one more gene known to be associated with IHH (oligogenecity). Data provided with evidence that PLXNA3, a key component of the SEMA3F holoreceptor complex,31 is expressed by the human GnRH and olfactory/vomeronasal systems. S646P variant showed PLXNA3 localization exclusively in the ER, indicating that the variant S646P disrupts cell surface localization of PLXNA3. Sources: Literature |
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| 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 v0.7986 | RELN |
Ee Ming Wong edited their review of gene: RELN: Added comment: - Six affected individuals carrying missense variants in RELN including 1. Two individuals with compound heterozygous variants - One of the variants has 26 homozygotes in gnomAD and therefore pathogenicity of this variant is in question - LoF demonstrated for three of the variants (reduced RELN secretion), except for p.Y1821H which demonstrated an apparently increased RELN secretion (GoF) 2. Two brothers carrying the maternally inherited variant (mother apparently healthy) - LoF demonstrated for these variants 3. Two individuals de novo for RELN variants - Dominant negative demonstrated for these variants where secretion of WT-RELN was impaired when co-transfected with mutant constructs in HEK293T cells; Changed rating: AMBER; Changed publications: Riva et al bioRxiv (pre-print, not peer-reviewed); Changed phenotypes: Pachygyria, Polymicrogyria, Heterotopia; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal |
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| 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 |
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| Mendeliome v0.7946 | FOXP1 | Zornitza Stark changed review comment from: At least 5 unrelated individuals reported.; to: At least 30 unrelated individuals reported. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7912 | 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 |
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| 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 |
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| Mendeliome v0.7891 | LTBP1 |
Chern Lim gene: LTBP1 was added gene: LTBP1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: LTBP1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: LTBP1 were set to 33991472 Phenotypes for gene: LTBP1 were set to cutis laxa syndrome Review for gene: LTBP1 was set to GREEN gene: LTBP1 was marked as current diagnostic Added comment: PMID:33991472 - Premature truncating variants in multiple affected individuals from 4 unrelated consanguineous families. - Affected individuals present with connective tissue features (cutis laxa and inguinal hernia), craniofacial dysmorphology, variable heart defects, and prominent skeletal features (craniosynostosis, short stature, brachydactyly, and syndactyly). - Functional studies done on patient fibroblasts and zebrafish models. Sources: Literature |
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| Mendeliome v0.7891 | PGM2L1 |
Chern Lim gene: PGM2L1 was added gene: PGM2L1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PGM2L1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PGM2L1 were set to 33979636 Phenotypes for gene: PGM2L1 were set to severe developmental and speech delay, dysmorphic facial features, ear anomalies, high arched palate, strabismus, hypotonia, and keratosis pilaris Review for gene: PGM2L1 was set to GREEN gene: PGM2L1 was marked as current diagnostic Added comment: PMID: 33979636: - Hom/chet PTVs in 4 unrelated individuals. All four affected individuals had severe developmental and speech delay, dysmorphic facial features, ear anomalies, high arched palate, strabismus, hypotonia, and keratosis pilaris. Early obesity and seizures were present in three individuals. - Studies on patient fibroblasts and cell lines indicated that PGM2L1 deficiency causes a decrease, but not a disappearance, of the sugar bisphosphates needed for the formation of NDP-sugars and that there is no evidence that this leads to a glycosylation defect. Sources: Literature |
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| 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. ------ 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 |
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| 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 |
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| Mendeliome v0.7706 | RAB11B | Zornitza Stark commented on gene: RAB11B: NDAGSCW is a neurodevelopmental disorder characterized by severely delayed psychomotor development apparent from infancy. Affected individuals have delayed and difficulty walking, intellectual disability, absent speech, and variable additional features, including hip dysplasia, tapering fingers, and seizures. Brain imaging shows decreased cortical white matter, often with decreased cerebellar white matter, thin corpus callosum, and thin brainstem. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.7618 | LEMD2 |
Zornitza Stark changed review comment from: Recurrent de novo variant in both individuals; to: Recurrent de novo variant in both individuals p.Ser479Phe. |
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| 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. |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.7541 | FBXO31 | Zornitza Stark edited their review of gene: FBXO31: Added comment: PMIDs 33675180; 32989326: three unrelated individuals with de novo missense variant, (p.Asp334Asn) and spastic-dystonic CP.; Changed rating: GREEN; Changed publications: 24623383, 33675180, 32989326; Changed phenotypes: Mental retardation, autosomal recessive 45, MIM#615979, Spastic-dystonic cerebral palsy, de novo dominant; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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. |
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| Mendeliome v0.7470 | NEPRO |
Chern Lim gene: NEPRO was added gene: NEPRO was added to Mendeliome. Sources: Literature Mode of inheritance for gene: NEPRO was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NEPRO were set to 26633546; 29620724; 31250547 Phenotypes for gene: NEPRO were set to Anauxetic dysplasia 3, MIM618853 Review for gene: NEPRO was set to AMBER Added comment: PMIDs 26633546, 29620724: 2 families with the same homozygous missense variant, haplotype analysis confirmed the founder nature of the variant. PMID 31250547: 1 family with homozygous novel missense All 5 affected individuals have severe short stature, brachydactyly, skin laxity, joint hypermobility, and joint dislocations. They also have short metacarpals, broad middle phalanges, and metaphyseal irregularities. No functional studies. Sources: Literature |
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| 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." |
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| 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 |
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| 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 |
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| 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 |
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| 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. |
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| Mendeliome v0.7363 | LIG3 |
Zornitza Stark changed review comment from: Three unrelated families and functional data. Sources: Literature; to: Seven individuals from three unrelated families and functional data, variable ages of onset from early childhood to late adolescence. Sources: Literature |
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| 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 |
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| 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 |
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| Mendeliome v0.7347 | DNAJB13 | Zornitza Stark changed review comment from: Additional individual identified by VCGS laboratory, homozygous LoF variant.; to: Additional individual identified by VCGS laboratory, homozygous LoF variant and PCD. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7347 | DNAJB13 | Zornitza Stark changed review comment from: Additional individual identified by VCGS laboratory.; to: Additional individual identified by VCGS laboratory, homozygous LoF variant. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7347 | DNAJB13 | Zornitza Stark edited their review of gene: DNAJB13: Added comment: Additional individual identified by VCGS laboratory.; Changed rating: GREEN | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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). |
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| 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 |
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| 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 v0.7191 | 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 |
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| Mendeliome v0.7191 | PLCH1 |
Arina Puzriakova gene: PLCH1 was added gene: PLCH1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PLCH1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PLCH1 were set to 33820834 Phenotypes for gene: PLCH1 were set to Holoprosencephaly spectrum; Severe developmental delay; Brain malformations Review for gene: PLCH1 was set to AMBER Added comment: PLCH1 is currently not associated with any phenotype in OMIM (last edited on 16/06/2009) or Gene2Phenotype. - PMID: 33820834 (2021) - Two sibling pairs from two unrelated families with a holoprosencephaly spectrum phenotype and different homozygous PLCH1 variants (c.2065C>T, p.Arg689* and c.4235delA, p.Cys1079ValfsTer16, respectively). One family presented with congenital hydrocephalus, epilepsy, significant developmental delay and a monoventricle or fused thalami; while sibs from the second family had alobar holoprosencephaly and cyclopia. 3/4 individuals also displayed a cleft palate and congenital heart disease. Human embryo immunohistochemistry showed PLCH1 to be expressed in the notorcord, developing spinal cord (in a ventral to dorsal gradient), dorsal root ganglia, cerebellum and dermatomyosome. Sources: Literature |
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| Mendeliome v0.7182 | UBE4A |
Zornitza Stark gene: UBE4A was added gene: UBE4A was added to Mendeliome. Sources: Literature Mode of inheritance for gene: UBE4A was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: UBE4A were set to 33420346 Phenotypes for gene: UBE4A were set to Intellectual disability and global developmental delay Review for gene: UBE4A was set to GREEN Added comment: 8 individuals, from 4 unrelated families, with syndromic intellectual disability and global developmental delay (other clinical features included hypotonia, short stature, seizures, and behaviour disorder. Exome sequencing identified biallelic loss-of-function variants in UBE4A in the 4 families, with variants segregating with disease and parents carriers. They demonstrated that UBE4A loss-of-function variants reduced RNA expression and protein levels in clinical samples. Mice generated to mimic patient-specific Ube4a loss-of-function variant exhibited muscular and neurological/behavioural abnormalities, some of which are suggestive of the clinical abnormalities seen in the affected individuals. Sources: Literature |
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| 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 |
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| Mendeliome v0.7133 | IDUA | Zornitza Stark Phenotypes for gene: IDUA were changed from Mucopolysaccharidosis Ih (MIM#607014); Mucopolysaccharidosis Ih/s (MIM#607015); Mucopolysaccharidosis Is (MIM#6070) to Mucopolysaccharidosis Ih (MIM#607014); Mucopolysaccharidosis Ih/s (MIM#607015); Mucopolysaccharidosis Is (MIM#6070); Mucopolysaccharidosis type 1, MONDO:0001586 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7132 | IDUA | Zornitza Stark reviewed gene: IDUA: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Mucopolysaccharidosis type 1, MONDO:0001586; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7127 | VWA1 |
Melanie Marty gene: VWA1 was added gene: VWA1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: VWA1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: VWA1 were set to 33459760; 33693694; 33559681 Phenotypes for gene: VWA1 were set to Hereditary motor neuropathy Review for gene: VWA1 was set to GREEN Added comment: Six different truncating variants identified in 15 affected individuals from six families (biallelic inheritance). Disease manifested in childhood or adulthood with proximal and distal muscle weakness predominantly of the lower limbs. Myopathological and neurophysiological findings were indicative of combined neurogenic and myopathic pathology. Early childhood foot deformity was frequent, but no sensory signs were observed. An additional 17 individuals from 15 families with hereditary motor neuropathy were identified. A 10-bp repeat expansion at the end of exon 1 was observed in 14 families and was homozygous in 10 of them. This mutation, c.62_71dup [p.Gly25Argfs*74], leads to a frameshift that results in a reduction in VWA1 transcript levels via nonsense-mediated decay. Sources: Literature |
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| Mendeliome v0.7121 | CLDN11 |
Melanie Marty gene: CLDN11 was added gene: CLDN11 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CLDN11 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: CLDN11 were set to 33313762 Phenotypes for gene: CLDN11 were set to Hypomyelinating leukodystrophy Review for gene: CLDN11 was set to GREEN Added comment: In three unrelated individuals with early-onset spastic movement disorder, expressive speech disorder and eye abnormalities including hypermetropia, 2 different heterozygous de novo stop-loss variants were identified. One of the variants did not lead to a loss of CLDN11 expression on RNA level in fibroblasts indicating this transcript is not subject to nonsense-mediated decay and most likely translated into an extended protein. Sources: Literature |
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| 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 |
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| 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 |
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| 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 v0.7004 | PRIM1 |
Zornitza Stark changed review comment from: - PMID: 33060134 (2020) - From a cohort of 220 families with microcephalic dwarfism spectrum disorders (OFC ≤−4 SD; height ≤−2 SD), three families (4 individuals) were identified with the same homozygous intronic variant (c.638+36C>G) in PRIM1. This variant was present in gnomAD in 2 individuals across all populations, but only in a heterozygous state. Haplotype analysis indicated that all three families share a distant common ancestor - i.e. confirmed founder variant. Authors subsequently identified a single individual with compound heterozygous PRIM1 variants (c.103+1G>T, c.901T>C) from the DDD study, who also presented microcephaly and short stature (OFC ≤−3 SD; height ≤−3 SD). Clinical overlap was evident in all 5 individuals, presenting extreme pre- and postnatal growth restriction, severe microcephaly (OFC −6.0 ± 1.5 SD) with simplified gyri appearance, hypothyroidism, hypo/agammaglobulinaemia, and lymphopaenia accompanied by intermittent anaemia/thrombocytopaenia. All had chronic respiratory symptoms, and four died in early childhood from respiratory or GI infections. Functional studies demonstrated reduced PRIM1 protein levels, replication fork defects and prolonged S-phase duration in PRIM1-deficient cells. The resulting delay to the cell cycle and inability to sustain sufficient cell proliferation provides a likely mechanism for the presenting phenotype. Sources: Literature; to: - PMID: 33060134 (2020) - From a cohort of 220 families with microcephalic dwarfism spectrum disorders (OFC ≤−4 SD; height ≤−2 SD), three families (4 individuals) were identified with the same homozygous intronic variant (c.638+36C>G) in PRIM1. This variant was present in gnomAD in 2 individuals across all populations, but only in a heterozygous state. Haplotype analysis indicated that all three families share a distant common ancestor - i.e. confirmed founder variant. Authors subsequently identified a single individual with compound heterozygous PRIM1 variants (c.103+1G>T, c.901T>C) from the DDD study, who also presented microcephaly and short stature (OFC ≤−3 SD; height ≤−3 SD). Clinical overlap was evident in all 5 individuals, presenting extreme pre- and postnatal growth restriction, severe microcephaly (OFC −6.0 ± 1.5 SD) with simplified gyri appearance, hypothyroidism, hypo/agammaglobulinaemia, and lymphopaenia accompanied by intermittent anaemia/thrombocytopaenia. All had chronic respiratory symptoms, and four died in early childhood from respiratory or GI infections. Functional studies demonstrated reduced PRIM1 protein levels, replication fork defects and prolonged S-phase duration in PRIM1-deficient cells. The resulting delay to the cell cycle and inability to sustain sufficient cell proliferation provides a likely mechanism for the presenting phenotype. Sources: Literature |
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| Mendeliome v0.7003 | PRIM1 |
Zornitza Stark changed review comment from: - PMID: 33060134 (2020) - From a cohort of 220 families with microcephalic dwarfism spectrum disorders (OFC ≤−4 SD; height ≤−2 SD), three families (4 individuals) were identified with the same homozygous intronic variant (c.638+36C>G) in PRIM1. This variant was present in gnomAD in 2 individuals across all populations, but only in a heterozygous state. Haplotype analysis indicated that all three families share a distant common ancestor - i.e. confirmed founder variant. Authors subsequently identified a single individual with compound heterozygous PRIM1 variants (c.103+1G>T, c.901T>C) from the DDD study, who also presented microcephaly and short stature (OFC ≤−3 SD; height ≤−3 SD). Clinical overlap was evident in all 5 individuals, presenting extreme pre- and postnatal growth restriction, severe microcephaly (OFC −6.0 ± 1.5 SD) with simplified gyri appearance, hypothyroidism, hypo/agammaglobulinemia, and lymphopenia accompanied by intermittent anaemia/thrombocytopaenia. All had chronic respiratory symptoms, and four died in early childhood from respiratory or GI infections. Functional studies demonstrated reduced PRIM1 protein levels, replication fork defects and prolonged S-phase duration in PRIM1-deficient cells. The resulting delay to the cell cycle and inability to sustain sufficient cell proliferation provides a likely mechanism for the presenting phenotype. Sources: Literature; to: - PMID: 33060134 (2020) - From a cohort of 220 families with microcephalic dwarfism spectrum disorders (OFC ≤−4 SD; height ≤−2 SD), three families (4 individuals) were identified with the same homozygous intronic variant (c.638+36C>G) in PRIM1. This variant was present in gnomAD in 2 individuals across all populations, but only in a heterozygous state. Haplotype analysis indicated that all three families share a distant common ancestor - i.e. confirmed founder variant. Authors subsequently identified a single individual with compound heterozygous PRIM1 variants (c.103+1G>T, c.901T>C) from the DDD study, who also presented microcephaly and short stature (OFC ≤−3 SD; height ≤−3 SD). Clinical overlap was evident in all 5 individuals, presenting extreme pre- and postnatal growth restriction, severe microcephaly (OFC −6.0 ± 1.5 SD) with simplified gyri appearance, hypothyroidism, hypo/agammaglobulinaemia, and lymphopaenia accompanied by intermittent anaemia/thrombocytopaenia. All had chronic respiratory symptoms, and four died in early childhood from respiratory or GI infections. Functional studies demonstrated reduced PRIM1 protein levels, replication fork defects and prolonged S-phase duration in PRIM1-deficient cells. The resulting delay to the cell cycle and inability to sustain sufficient cell proliferation provides a likely mechanism for the presenting phenotype. Sources: Literature |
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| Mendeliome v0.7003 | PRIM1 |
Zornitza Stark changed review comment from: - PMID: 33060134 (2020) - From a cohort of 220 families with microcephalic dwarfism spectrum disorders (OFC ≤−4 SD; height ≤−2 SD), three families (4 individuals) were identified with the same homozygous intronic variant (c.638+36C>G) in PRIM1. This variant was present in gnomAD in 2 individuals across all populations, but only in a heterozygous state. Haplotype analysis indicated that all three families share a distant common ancestor - i.e. confirmed founder variant. Authors subsequently identified a single individual with compound heterozygous PRIM1 variants (c.103+1G>T, c.901T>C) from the DDD study, who also presented microcephaly and short stature (OFC ≤−3 SD; height ≤−3 SD). Clinical overlap was evident in all 5 individuals, presenting extreme pre- and postnatal growth restriction, severe microcephaly (OFC −6.0 ± 1.5 SD) with simplified gyri appearance, hypothyroidism, hypo/agammaglobulinemia, and lymphopenia accompanied by intermittent anaemia/thrombocytopenia. All had chronic respiratory symptoms, and four died in early childhood from respiratory or GI infections. Functional studies demonstrated reduced PRIM1 protein levels, replication fork defects and prolonged S-phase duration in PRIM1-deficient cells. The resulting delay to the cell cycle and inability to sustain sufficient cell proliferation provides a likely mechanism for the presenting phenotype. Sources: Literature; to: - PMID: 33060134 (2020) - From a cohort of 220 families with microcephalic dwarfism spectrum disorders (OFC ≤−4 SD; height ≤−2 SD), three families (4 individuals) were identified with the same homozygous intronic variant (c.638+36C>G) in PRIM1. This variant was present in gnomAD in 2 individuals across all populations, but only in a heterozygous state. Haplotype analysis indicated that all three families share a distant common ancestor - i.e. confirmed founder variant. Authors subsequently identified a single individual with compound heterozygous PRIM1 variants (c.103+1G>T, c.901T>C) from the DDD study, who also presented microcephaly and short stature (OFC ≤−3 SD; height ≤−3 SD). Clinical overlap was evident in all 5 individuals, presenting extreme pre- and postnatal growth restriction, severe microcephaly (OFC −6.0 ± 1.5 SD) with simplified gyri appearance, hypothyroidism, hypo/agammaglobulinemia, and lymphopenia accompanied by intermittent anaemia/thrombocytopaenia. All had chronic respiratory symptoms, and four died in early childhood from respiratory or GI infections. Functional studies demonstrated reduced PRIM1 protein levels, replication fork defects and prolonged S-phase duration in PRIM1-deficient cells. The resulting delay to the cell cycle and inability to sustain sufficient cell proliferation provides a likely mechanism for the presenting phenotype. Sources: Literature |
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| Mendeliome v0.7003 | PRIM1 |
Zornitza Stark gene: PRIM1 was added gene: PRIM1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PRIM1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PRIM1 were set to 33060134 Phenotypes for gene: PRIM1 were set to Microcephalic primordial dwarfism, MONDO:0017950 Review for gene: PRIM1 was set to AMBER Added comment: - PMID: 33060134 (2020) - From a cohort of 220 families with microcephalic dwarfism spectrum disorders (OFC ≤−4 SD; height ≤−2 SD), three families (4 individuals) were identified with the same homozygous intronic variant (c.638+36C>G) in PRIM1. This variant was present in gnomAD in 2 individuals across all populations, but only in a heterozygous state. Haplotype analysis indicated that all three families share a distant common ancestor - i.e. confirmed founder variant. Authors subsequently identified a single individual with compound heterozygous PRIM1 variants (c.103+1G>T, c.901T>C) from the DDD study, who also presented microcephaly and short stature (OFC ≤−3 SD; height ≤−3 SD). Clinical overlap was evident in all 5 individuals, presenting extreme pre- and postnatal growth restriction, severe microcephaly (OFC −6.0 ± 1.5 SD) with simplified gyri appearance, hypothyroidism, hypo/agammaglobulinemia, and lymphopenia accompanied by intermittent anaemia/thrombocytopenia. All had chronic respiratory symptoms, and four died in early childhood from respiratory or GI infections. Functional studies demonstrated reduced PRIM1 protein levels, replication fork defects and prolonged S-phase duration in PRIM1-deficient cells. The resulting delay to the cell cycle and inability to sustain sufficient cell proliferation provides a likely mechanism for the presenting phenotype. Sources: Literature |
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| Mendeliome v0.6924 | CD4 | Zornitza Stark changed review comment from: Single individual reported, functional data, emerging gene.; to: Two individuals reported, functional data. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6909 | 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 v0.6893 | IPO8 |
Zornitza Stark gene: IPO8 was added gene: IPO8 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: IPO8 was set to BIALLELIC, autosomal or pseudoautosomal Phenotypes for gene: IPO8 were set to Loeys-Dietz syndrome-like; cardiovascular, neurologic, skeletal and immunologic abnormalities Review for gene: IPO8 was set to AMBER Added comment: 12 individuals from 9 unrelated families in a cohort submitted for publication with bi-allelic IPO8 variants. Variants were nonsense/splice and some missense. Patients displayed a phenotype reminiscent of Loeys Dietz syndrome that variably combined cardiovascular, neurologic, skeletal and immunologic abnormalities along with dysmorphic features. Western blot on patient cells (4 individuals) showed reduced IPO8 expression. Disruption of IPO8 homologue in zebrafish associated with cardiac anomalies. Transcriptome analysis in zebrafish showed that IPO8-deficient zebrafish had abnormal TGFbeta pathway expression. Sources: Expert Review |
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| Mendeliome v0.6891 | DDB1 | Zornitza Stark edited their review of gene: DDB1: Added comment: 8 individuals with de novo missense variants and varying degrees of intellectual disability, hypotonia, and some malformations, brachydactyly and syndactyly. Functional evidence of abnormal DNA repair in patient lymphoblasts.; Changed publications: 33743206 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6837 | SCA17 |
Bryony Thompson STR: SCA17 was added STR: SCA17 was added to Mendeliome. Sources: Expert list Mode of inheritance for STR: SCA17 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for STR: SCA17 were set to 20301611; 29325606 Phenotypes for STR: SCA17 were set to Spinocerebellar ataxia 17 MIM#607136 Review for STR: SCA17 was set to GREEN STR: SCA17 was marked as clinically relevant Added comment: NM_003194.4:c.172_174[X] Mechanism of disease expected to be gain of function Normal: ≤ 40 CAG/CAA repeats Reduced-penetrance: 41-48 CAG/CAA repeats, individual may or may not develop symptoms. Full-penetrance: ≥49 CAG/CAA repeats Sources: Expert list |
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| 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 v0.6793 | 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 |
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| 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 |
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| 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 |
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| 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 v0.6589 | SIAH1 |
Arina Puzriakova gene: SIAH1 was added gene: SIAH1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SIAH1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: SIAH1 were set to 32430360 Phenotypes for gene: SIAH1 were set to Developmental delay; Infantile hypotonia; Dysmorphic features; Laryngomalacia Review for gene: SIAH1 was set to GREEN Added comment: - PMID: 32430360 (2021) - Five unrelated individuals with shared features of developmental delay, infantile hypotonia, dysmorphic features and laryngomalacia. All had speech delay and where cognitive assessment was age appropriate individuals exhibited learning difficulties. Trio WES revealed distinct de novo variants in SIAH1. In vitro assays demonstrated that SIAH1 mutants induce loss of Wnt stimulatory activity. Sources: Literature |
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| Mendeliome v0.6582 | SYCP2L |
Arina Puzriakova gene: SYCP2L was added gene: SYCP2L was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SYCP2L was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SYCP2L were set to 32303603 Phenotypes for gene: SYCP2L were set to Premature ovarian insufficiency Review for gene: SYCP2L was set to AMBER Added comment: - PMID: 32303603 (2021) - Two unrelated individuals with premature ovarian insufficiency and homozygous variants (c.150_151del (p.Ser52Profs*7), c.999A>G (p.Ile333Met)) in SYCP2L. In vitro assays revealed that mutant SYCP2L proteins induced mislocalisation and reduced expression. Sycp2l knockout mice exhibit accelerated reproductive ageing. Sources: Literature |
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| 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 |
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| Mendeliome v0.6556 | ACSL5 |
Zornitza Stark gene: ACSL5 was added gene: ACSL5 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ACSL5 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ACSL5 were set to 33191500 Phenotypes for gene: ACSL5 were set to severe FTT (no OMIM #) Review for gene: ACSL5 was set to RED Added comment: 6 individuals of a large consanguineous family presented in the neonatal period with recurrent vomiting and diarrhea, leading to severe FTT. Autozygosity mapping and WES identified homozygous variant (c.1358C>A:p.(Thr453Lys) in ACSL5. Segregated with affected individuals. Functional in vitro analysis of the ACSL5 variant by immunofluorescence, western blotting and enzyme assay suggested that Thr453Lys is a loss‐of‐function mutation without any remaining activity. Affected individuals were treated with total parenteral nutrition or medium‐chain triglyceride‐based formula restricted in long‐chain triglycerides. They responded well and follow up suggests that treatment is only required during early life. Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.6526 | APOO |
Arina Puzriakova gene: APOO was added gene: APOO was added to Mendeliome. Sources: Literature Mode of inheritance for gene: APOO 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: APOO were set to 32439808 Phenotypes for gene: APOO were set to Developmental delay; Lactic acidosis; Muscle weakness; Hypotonia; Repetitive infections; Cognitive impairment; Autistic behaviour Review for gene: APOO was set to RED Added comment: - PMID: 32439808 (2021) - Three generation family with c.350T>C variant in APOO, encoding a component of the MICOS complex which plays a role in maintaining inner mitochondrial membrane architecture. Phenotypes include fatigue and muscle weakness (6/8), learning difficulties and cognitive impairment (4/8), and increased blood lactate (2/8). Four individuals were asymptomatic carriers, including one male (authors indicate variability in female carriers was due to skewed X-inactivation, although skewing studies were inconclusive in some cases). Variability in clinical presentation suggests reduced penetrance or possible contribution of additional factors. Functional studies showed altered MICOS assembly and abnormalities in mitochondria ultrastructure in patient-derived fibroblasts. Knockdown studies in Drosophila and yeast demonstrated mitochondrial structural and functional deficiencies. Sources: Literature |
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| Mendeliome v0.6501 | PCBD1 |
Michelle Torres edited their review of gene: PCBD1: Added comment: PMID: 24848070: one consanguineous family with early-onset nonautoimmune diabetes. The individual with early onset is biallelic, and 3 other carriers had later onset diabetes. In addition, 3 other patients with mild neonatal hyperphenylalaninemia with features similar to dominantly inherited HNF1A-diabetes. PMID: 24204001: 2 out 3 patients with hypomagnesemia and renal magnesium wasting associated to biallelic PCBD1 variants developed MODY; Changed phenotypes: MODY, Hyperphenylalaninemia, BH4-deficient, D 264070 |
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| 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 v0.6494 | PCBD1 |
Michelle Torres changed review comment from: PMID: 24848070: one consanguineous family with early-onset nonautoimmune diabetes. The individual with early onset is biallelic, and 3 other carriers had later onset diabetes. In addition, 3 other patients with mild neonatal hyperphenylalaninemia with features similar to dominantly inherited HNF1A-diabetes. PMID: 24204001: 2 out 3 patients with hypomagnesemia and renal magnesium wasting associated to biallelic PCBD1 variants developed MODY; to: PMID: 24848070: one consanguineous family with early-onset nonautoimmune diabetes. The individual with early onset is biallelic, and 3 other carriers had later onset diabetes. In addition, 3 other patients with mild neonatal hyperphenylalaninemia with features similar to dominantly inherited HNF1A-diabetes. PMID: 24204001: 2 out 3 patients with hypomagnesemia and renal magnesium wasting associated to biallelic PCBD1 variants developed MODY |
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| Mendeliome v0.6490 | PCBD1 |
Michelle Torres changed review comment from: PMID: 24848070: one consanguineous family with early-onset nonautoimmune diabetes with features similar to dominantly inherited HNF1A-diabetes. The individual with early onset is biallelic, and 3 other carriers had later onset diabetes. PMID: 24204001: 2 out 3 patients with hypomagnesemia and renal magnesium wasting associated to biallelic PCBD1 variants developed MODY; to: PMID: 24848070: one consanguineous family with early-onset nonautoimmune diabetes. The individual with early onset is biallelic, and 3 other carriers had later onset diabetes. In addition, 3 other patients with mild neonatal hyperphenylalaninemia with features similar to dominantly inherited HNF1A-diabetes. PMID: 24204001: 2 out 3 patients with hypomagnesemia and renal magnesium wasting associated to biallelic PCBD1 variants developed MODY |
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| 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 |
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| Mendeliome v0.6419 | ASCC3 |
Bryony Thompson gene: ASCC3 was added gene: ASCC3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ASCC3 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ASCC3 were set to 21937992; https://doi.org/10.1016/j.xhgg.2021.100024 Phenotypes for gene: ASCC3 were set to Neuromuscular syndrome; congenital myopathy Review for gene: ASCC3 was set to GREEN Added comment: 11 individuals from 7 unrelated families with homozygous (missense) or compound heterozygous variants (missense with a presumed LoF variant or 2 missense, no biallelic LoF) with a neurologic phenotype that ranges from severe developmental delay to muscle fatigue. Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| 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 v0.6221 | DDX58 | Zornitza Stark edited their review of gene: DDX58: Added comment: Prasov et al. 2021 (PMID: 33495304) - A heterozygous DDX58 variant (c.1529A>T) was identified in 5 individuals from 2 unrelated families from different ethnic backgrounds. Phenotypes varied with some being severely affected by systemic features and others solely with glaucoma.Functional analysis demonstrated the variant confers a dominant gain-of-function effect on interferon activity.; Changed mode of pathogenicity: Other; Changed publications: 25620203, 33495304 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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. |
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| 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 |
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| Mendeliome v0.6195 | DNAJC30 |
Zornitza Stark gene: DNAJC30 was added gene: DNAJC30 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: DNAJC30 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DNAJC30 were set to 33465056 Phenotypes for gene: DNAJC30 were set to Leber Hereditary Optic Neuropathy Review for gene: DNAJC30 was set to GREEN Added comment: 33 individuals from 29 families had homozygous DNAJC30 missense variants. Three different variants identified (one responsible for most cases). All three variants absent from gnomAD. Incomplete penetrance and male predominance in affected individuals both typical of LHON due to mtDNA mutations. All 3 variants in the J domain of the protein. Functional evidence. Sources: Literature |
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| 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 |
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| Mendeliome v0.6187 | PIGF |
Paul De Fazio changed review comment from: The same homozygous missense variant identified in 2 individuals from different families from the same region of India. Individuals had a phenotype similar to DOORS syndrome without deafness. Impaired glycosylphosphatidylinositol (GPI) biosynthesis was demonstrated. Rated Red as the two families are likely to be related (founder mutation?). Sources: Literature; to: The same homozygous missense variant identified in 2 individuals from different families from the same region of India. Individuals had a phenotype similar to DOORS syndrome without deafness - only one of the two had seizures (GTCS), the other was 14mo and noted to have tonic posturing. Impaired glycosylphosphatidylinositol (GPI) biosynthesis was demonstrated by flow cytometry and a rescue assay. Alkaline phosphatase in both individuals was normal. Rated Red as the two families are likely to be related (founder mutation?). Sources: Literature |
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| Mendeliome v0.6187 | PIGF |
Paul De Fazio changed review comment from: The same missense variant identified in 2 individuals from different families from the same region of India. Individuals had a phenotype similar to DOORS syndrome without deafness. Impaired glycosylphosphatidylinositol (GPI) biosynthesis was demonstrated. Rated Red as the two families are likely to be related (founder mutation?). Sources: Literature; to: The same homozygous missense variant identified in 2 individuals from different families from the same region of India. Individuals had a phenotype similar to DOORS syndrome without deafness. Impaired glycosylphosphatidylinositol (GPI) biosynthesis was demonstrated. Rated Red as the two families are likely to be related (founder mutation?). Sources: Literature |
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| Mendeliome v0.6187 | PIGF |
Paul De Fazio changed review comment from: Identified in 2 individuals with a phenotype similar to DOORS (syndrome Sources: Literature; to: The same missense variant identified in 2 individuals from different families from the same region of India. Individuals had a phenotype similar to DOORS syndrome without deafness. Impaired glycosylphosphatidylinositol (GPI) biosynthesis was demonstrated. Rated Red as the two families are likely to be related (founder mutation?). Sources: Literature |
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| Mendeliome v0.6187 | PIGF |
Paul De Fazio gene: PIGF was added gene: PIGF was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PIGF was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PIGF were set to 33386993 Phenotypes for gene: PIGF were set to Glycosylphosphatidylinositol\ deficiency, onychodystrophy, osteodystrophy, intellectual disability, and seizures Review for gene: PIGF was set to RED gene: PIGF was marked as current diagnostic Added comment: Identified in 2 individuals with a phenotype similar to DOORS (syndrome Sources: Literature |
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| 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 |
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| Mendeliome v0.6184 | HIRA |
Paul De Fazio gene: HIRA was added gene: HIRA was added to Mendeliome. Sources: Literature Mode of inheritance for gene: HIRA was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: HIRA were set to 33417013; 28135719; 25363760 Phenotypes for gene: HIRA were set to Neurodevelopmental disorder Review for gene: HIRA was set to GREEN gene: HIRA was marked as current diagnostic Added comment: Two unrelated patients with different de novo loss of function variants identified in PMID 33417013: Individual 1: intragenic deletion, phenotype included psychomotor retardation, ID, growth retardation, microcephaly, and facial features reminiscent of 22q deletion syndrome. Individual 2: canonical splice variant, phenotype mostly confined to ASD Another two de novo variants were identified in the literature by the authors of that paper, one stop-gain (DDD study, PMID 28135719) and one missense (large autism cohort, PMID 25363760). PMID 33417013 also showed that HIRA knockdown in mice results in neurodevelopmental abnormalities. Rated Green due to 4 unrelated individuals (albeit 2 in large cohort studies) and a mouse model. NB: HIRA is within the common 22q deletion region. Sources: Literature |
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| Mendeliome v0.6181 | CFAP47 | Zornitza Stark Added comment: Comment when marking as ready: 3-4 unrelated individuals and animal model. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6179 | EYA3 |
Paul De Fazio gene: EYA3 was added gene: EYA3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: EYA3 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: EYA3 were set to 33475861 Phenotypes for gene: EYA3 were set to Oculo-auriculo-vertebral spectrum (OAVS) Review for gene: EYA3 was set to RED gene: EYA3 was marked as current diagnostic Added comment: 3 individuals with OAVS from two unrelated families with the same missense variant, p.(Asn358Ser). Variant has 20 heterozygotes in gnomAD. Unaffected carriers in both families were also identified - unknown if incomplete penetrance or nonsegregation. Functional studies indicate the variant increases protein half life, and gene knockdown in zebrafish had an effect on craniofacial development. Rated Red due to both families sharing the variant and uncertainty about incomplete penetrance versus nonsegregation. Sources: Literature |
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| Mendeliome v0.6178 | HEY2 |
Zornitza Stark gene: HEY2 was added gene: HEY2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: HEY2 was set to BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal Publications for gene: HEY2 were set to 32820247 Phenotypes for gene: HEY2 were set to congenital heart defects and thoracic aortic aneurysms Review for gene: HEY2 was set to RED Added comment: A very large family affected by CHD and familial thoracic aortic aneurysms. Trio genome sequencing was carried out in an index patient with critical CHD, and family members had either exome or Sanger sequencing. Identified homozygous loss-of-function variant (c.318_319delAG, p.G108*) in HEY2 in 3 individuals in family with critical CHD, whereas the 20 heterozygous carriers show a spectrum of CVDs (CHD and FTAA, but varying expressivity and incomplete penetrance). Other studies show that knockout of HEY2 in mice results in cardiovascular defects (CVDs), including septal defects, cardiomyopathy, a thin-walled aorta, and valve anomalies. Sources: Literature |
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| Mendeliome v0.6174 | OTUD5 |
Zornitza Stark gene: OTUD5 was added gene: OTUD5 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: OTUD5 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females Publications for gene: OTUD5 were set to 33131077 Phenotypes for gene: OTUD5 were set to X-linked severe neurodevelopmental delay, hydrocephalus, and early lethality Review for gene: OTUD5 was set to RED Added comment: 13 male patients from a single family with three generations affected. Patients presented prenatally or during the neonatal period with IUGR, ventriculomegaly, hydrocephalus, hypotonia, congenital heart defects, hypospadias, and severe neurodevelopmental delay. The disease is typically fatal during infancy, mainly due to sepsis (pneumonias). Female carriers are asymptomatic. WGS in four individuals identified a unique candidate variant in the OTUD5 gene (NM_017602.3:c.598G > A, p.Glu200Lys). The variant cosegregated with the disease in 10 tested individuals. No functional studies. Sources: Literature |
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| Mendeliome v0.6171 | CFAP47 |
Hazel Phillimore gene: CFAP47 was added gene: CFAP47 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CFAP47 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: CFAP47 were set to PMID: 33472045 Phenotypes for gene: CFAP47 were set to asthenoteratozoospermia; morphological abnormalities of the flagella (MMAF) Review for gene: CFAP47 was set to AMBER Added comment: CFAP47 also known as CXorf22. 3 different missense variants in 3 unrelated Chinese individuals with asthenoteratozoospermia associated with morphological abnormalities of the flagella (MMAF). Immunoblotting and immunofluorescence showed reduced levels of CFAP47 in spermatozoa in all 3 men. A separate asthenoteratozoospermia cohort showed 1 individual with CNV including whole gene deletion of CFAP47. Mouse model (with frameshift variants generated (via CRISPR-Cas9 technology) were sterile and presented with reduced sperm motility and abnormal flagellar morphology. Sources: Literature |
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| 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 |
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| Mendeliome v0.6149 | NOS1AP |
Zornitza Stark edited their review of gene: NOS1AP: Added comment: Nephrotic syndrome type 22 (NPHS22) is an autosomal recessive renal disease characterized by onset of progressive kidney dysfunction in infancy. Affected individuals usually present with edema associated with hypoproteinemia, proteinuria, and microscopic hematuria. Renal biopsy shows effacement of the podocyte foot processes, glomerulosclerosis, and thickening of the glomerular basement membrane. The disease is steroid-resistant and progressive, resulting in end-stage renal disease usually necessitating kidney transplant. Two unrelated families and animal model. No PMID yet: https://advances.sciencemag.org/content/7/1/eabe1386; Changed rating: GREEN; Changed phenotypes: Nephrotic syndrome, type 22, MIM# 619155; Changed mode of inheritance: BIALLELIC, autosomal or pseudoautosomal |
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| 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 |
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| 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 |
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| 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 |
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| 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 v0.6018 | 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.6012 | UBR7 |
Zornitza Stark gene: UBR7 was added gene: UBR7 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: UBR7 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: UBR7 were set to 33340455 Phenotypes for gene: UBR7 were set to Intellectual disability; epilepsy; hypothyroidism; congenital anomalies; dysmorphic features Review for gene: UBR7 was set to GREEN Added comment: Seven individuals from 6 unrelated families. All had developmental delay, and all males had urogenital anomalies, namely cryptorchidism in 5/6 and small penis in 1/6. Six individuals had seizures and hypotonia. Hypothyroidism was present in 4/7 individuals, and ptosis was noted in 6/7 individuals. Five individuals exhibited cardiac abnormalities: two had ventricular septal defect, one had atrial septal defect, one had a patent ductus arteriosus requiring surgery, and the other had a patent ductus arteriosus and a patent foramen ovale that both closed spontaneously. Five individuals had short stature (height < 3rd percentile). Physical examination revealed various dysmorphic features, including prominent forehead (3/7), hypertelorism (4/7), telecanthus (1/7), epicanthus(1/7), downslanting palpebral fissures (3/7), thick eyebrow (1/7), low-set ears (3/7), long philtrum (2/7), unilateral single transverse palmar crease (1/7), and hypertrichosis (1/7). Sources: Literature |
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| Mendeliome v0.5914 | RNU7-1 |
Ee Ming Wong changed review comment from: - 16 affected individuals from 11 families - - Compared to control fibroblasts, patient fibroblasts were enriched for misprocessed forms of replication-dependent histone (RDH) mRNAs Sources: Literature; to: - 16 affected individuals from 11 families - Compared to control fibroblasts, patient fibroblasts were enriched for misprocessed forms of replication-dependent histone (RDH) mRNAs Sources: Literature |
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| Mendeliome v0.5914 | RNU7-1 |
Ee Ming Wong gene: RNU7-1 was added gene: RNU7-1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RNU7-1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: RNU7-1 were set to PMID: 33230297 Phenotypes for gene: RNU7-1 were set to PMID: 33230297 Review for gene: RNU7-1 was set to GREEN gene: RNU7-1 was marked as current diagnostic Added comment: - 16 affected individuals from 11 families - - Compared to control fibroblasts, patient fibroblasts were enriched for misprocessed forms of replication-dependent histone (RDH) mRNAs Sources: Literature |
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| Mendeliome v0.5914 | RPL3L |
Elena Savva gene: RPL3L was added gene: RPL3L was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RPL3L was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: RPL3L were set to PMID: 32514796; 32870709 Phenotypes for gene: RPL3L were set to Neonatal dilated cardiomyopathy Review for gene: RPL3L was set to GREEN Added comment: PMID: 32514796 - 5 hom/chet individuals from three independent families who presented with severe neonatal dilated cardiomyopathy. Unaffected sibs were either carriers of a single variant or homozygous wildtype. PMID: 32870709 - 1 hom patient w/ neonatal DCM Sources: Literature |
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| 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 |
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| 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 v0.5718 | 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. |
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| 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. |
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| Mendeliome v0.5652 | BMP15 | Zornitza Stark commented on gene: BMP15: Only affects females, variants inherited from asymptomatic fathers. Over 50 individuals reported. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.5605 | FRA12A |
Bryony Thompson STR: FRA12A was added STR: FRA12A was added to Mendeliome. Sources: Other 5'UTR tags were added to STR: FRA12A. Mode of inheritance for STR: FRA12A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for STR: FRA12A were set to 17236128 Phenotypes for STR: FRA12A were set to Mental retardation, FRA12A type MIM#136630 Review for STR: FRA12A was set to AMBER Added comment: NM_173602.2:c.-137CGG[X] All individuals expressing FRA12A had CGG-repeat expansion. The length of the expanded allele in 3 unaffected FRA12A carriers was 650–850 bp. In the two affected patients from 2 families with FRA12A, the length of the expanded allele was ∼1,050-1,150 bp. 70 controls used to determine the "normal" repeat range. Sources: Other |
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| Mendeliome v0.5601 | CANVAS_ACAGG |
Bryony Thompson changed review comment from: A novel RFC1 repeat expansion motif, (ACAGG)exp, identified in three affected individuals from 2 families in an Asian-Pacific cohort for CANVAS. Southern blot was used to identify the repeat was ~1000kb in one of the cases, equivalent to ~1000 repeats. Sources: Literature; to: A novel RFC1 repeat expansion motif, (ACAGG)exp, identified homozygous in three affected individuals from 2 families in an Asian-Pacific cohort for CANVAS. Southern blot was used to identify the repeat was ~1000kb in one of the cases, equivalent to ~1000 repeats. Sources: Literature |
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| Mendeliome v0.5600 | CANVAS_ACAGG |
Bryony Thompson STR: CANVAS_ACAGG was added STR: CANVAS_ACAGG was added to Mendeliome. Sources: Literature Mode of inheritance for STR: CANVAS_ACAGG was set to BIALLELIC, autosomal or pseudoautosomal Publications for STR: CANVAS_ACAGG were set to 33103729 Phenotypes for STR: CANVAS_ACAGG were set to Cerebellar ataxia, neuropathy, and vestibular areflexia syndrome; fasciculations; elevated serum creatine kinase levels; denervation Review for STR: CANVAS_ACAGG was set to AMBER Added comment: A novel RFC1 repeat expansion motif, (ACAGG)exp, identified in three affected individuals from 2 families in an Asian-Pacific cohort for CANVAS. Southern blot was used to identify the repeat was ~1000kb in one of the cases, equivalent to ~1000 repeats. Sources: Literature |
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| 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 v0.5579 | EMC10 |
Zornitza Stark gene: EMC10 was added gene: EMC10 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: EMC10 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: EMC10 were set to 32869858 Phenotypes for gene: EMC10 were set to Intellectual disability Review for gene: EMC10 was set to RED Added comment: Homozygous variants of EMC1 are associated with GDD, scoliosis, and cerebellar atrophy, indicating the relevance of this pathway for neurogenetic disorders. One Saudi family with 2 affected individuals with mild ID, speech delay, and GDD. WES and Sanger sequencing revealed a homozygous splice acceptor site variant (c.679‐1G>A) in EMC10 . Variant segregated within the family. RT‐qPCR showed a substantial decrease in the relative EMC10 gene expression in the patients. Sources: Literature |
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| Mendeliome v0.5577 | FBXO28 |
Zornitza Stark gene: FBXO28 was added gene: FBXO28 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: FBXO28 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: FBXO28 were set to 33280099 Phenotypes for gene: FBXO28 were set to Developmental and epileptic encephalopathy Review for gene: FBXO28 was set to GREEN Added comment: Nine new individuals with FBXO28 pathogenic variants (four missense, including one recurrent, three nonsense, and one frameshift) and all 10 known cases reviewed to delineate the phenotypic spectrum. All had epilepsy and 9 of 10 had DEE, including infantile spasms (3) and a progressive myoclonic epilepsy (1). Median age at seizure onset was 22.5 months (range 8 months to 5 years). Nine of 10 patients had intellectual disability, which was profound in six of nine and severe in three of nine. Movement disorders occurred in eight of 10 patients, six of 10 had hypotonia, four of 10 had acquired microcephaly, and five of 10 had dysmorphic features. Sources: Literature |
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| 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 |
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| Mendeliome v0.5567 | VPS4A |
Kristin Rigbye changed review comment from: PMID: 33186543 - 2x de novo hetorozygous missense variants in the AAA (large ATPase) domain. 1x homozygous missense in the MIT domain (milder phenotype and unaffected parents). Demonstrated defective CD71 trafficking in all 3 patients. PMID: 33186545 - 6x probands with de novo missense variants in the AAA domain. 5 of the variants were at amino acid position 284 (changes to Trp and Gly). Demonstrated that the variants had a dominant-negative effect on VPS4A function. "The six probands with de novo substitutions affecting Glu206 or Arg284 had a consistent phenotype characterized by severe DD, profound ID, and dystonia. Children were very delayed in establishing head control and none achieved independent walking. Other common findings were cerebellar hypoplasia (five individuals out of six, the other showing uncharacterized severe cerebral atrophy) with a variable degree of corpus callosum hypoplasia. One individual also had bilateral polymicrogyria. Epilepsy was present in three and dystonia in five subjects. Eye involvement was also a common finding, including congenital cataract, retinal dystrophy, and in one case congenital Leber amaurosis. Four individuals were diagnosed with hepatosplenomegaly and/or steatosis. Three subjects had anemia, which was characterized as dyserythropoietic in two. Severe feeding difficulties were present in four individuals, requiring assisted feeding in three. Two had sensorineural deafness. Severe growth retardation, generally for all parameters, was present in most cases. Notably, severe microcephaly (typically with Z scores < −5) was universal. Overall, the disorder seems to have a poor prognosis as two affected individuals died in childhood or early adult life." Sources: Literature; to: PMID: 33186543 - 2x de novo hetorozygous missense variants in the AAA (large ATPase) domain. 1x homozygous missense in the MIT domain (milder phenotype and unaffected parents - possibly just a simple LoF mechanism for AR inheritance). Demonstrated defective CD71 trafficking in all 3 patients. PMID: 33186545 - 6x probands with de novo missense variants in the AAA domain. 5 of the variants were at amino acid position 284 (changes to Trp and Gly). Demonstrated that the variants had a dominant-negative effect on VPS4A function. "The six probands with de novo substitutions affecting Glu206 or Arg284 had a consistent phenotype characterized by severe DD, profound ID, and dystonia. Children were very delayed in establishing head control and none achieved independent walking. Other common findings were cerebellar hypoplasia (five individuals out of six, the other showing uncharacterized severe cerebral atrophy) with a variable degree of corpus callosum hypoplasia. One individual also had bilateral polymicrogyria. Epilepsy was present in three and dystonia in five subjects. Eye involvement was also a common finding, including congenital cataract, retinal dystrophy, and in one case congenital Leber amaurosis. Four individuals were diagnosed with hepatosplenomegaly and/or steatosis. Three subjects had anemia, which was characterized as dyserythropoietic in two. Severe feeding difficulties were present in four individuals, requiring assisted feeding in three. Two had sensorineural deafness. Severe growth retardation, generally for all parameters, was present in most cases. Notably, severe microcephaly (typically with Z scores < −5) was universal. Overall, the disorder seems to have a poor prognosis as two affected individuals died in childhood or early adult life." |
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| Mendeliome v0.5567 | VPS4A |
Elena Savva changed review comment from: Comment when marking as ready: PMID: 33186543 - 2x de novo hetorozygous missense variants in the AAA (large ATPase) domain. 1x homozygous missense in the MIT domain (milder phenotype and unaffected parents). Demonstrated defective CD71 trafficking in all 3 patients. PMID: 33186545 - 6x probands with de novo missense variants in the AAA domain. 5 of the variants were at amino acid position 284 (changes to Trp and Gly). Demonstrated that the variants had a dominant-negative effect on VPS4A function. "The six probands with de novo substitutions affecting Glu206 or Arg284 had a consistent phenotype characterized by severe DD, profound ID, and dystonia. Children were very delayed in establishing head control and none achieved independent walking. Other common findings were cerebellar hypoplasia (five individuals out of six, the other showing uncharacterized severe cerebral atrophy) with a variable degree of corpus callosum hypoplasia. One individual also had bilateral polymicrogyria. Epilepsy was present in three and dystonia in five subjects. Eye involvement was also a common finding, including congenital cataract, retinal dystrophy, and in one case congenital Leber amaurosis. Four individuals were diagnosed with hepatosplenomegaly and/or steatosis. Three subjects had anemia, which was characterized as dyserythropoietic in two. Severe feeding difficulties were present in four individuals, requiring assisted feeding in three. Two had sensorineural deafness. Severe growth retardation, generally for all parameters, was present in most cases. Notably, severe microcephaly (typically with Z scores < −5) was universal. Overall, the disorder seems to have a poor prognosis as two affected individuals died in childhood or early adult life."; to: PMID: 33186543 - 2x de novo hetorozygous missense variants in the AAA (large ATPase) domain. 1x homozygous missense in the MIT domain (milder phenotype and unaffected parents). Demonstrated defective CD71 trafficking in all 3 patients. Comment when marking as ready: PMID: 33186543 - 2x de novo hetorozygous missense variants in the AAA (large ATPase) domain. 1x homozygous missense in the MIT domain (milder phenotype and unaffected parents). Demonstrated defective CD71 trafficking in all 3 patients. PMID: 33186545 - 6x probands with de novo missense variants in the AAA domain. 5 of the variants were at amino acid position 284 (changes to Trp and Gly). Demonstrated that the variants had a dominant-negative effect on VPS4A function. "The six probands with de novo substitutions affecting Glu206 or Arg284 had a consistent phenotype characterized by severe DD, profound ID, and dystonia. Children were very delayed in establishing head control and none achieved independent walking. Other common findings were cerebellar hypoplasia (five individuals out of six, the other showing uncharacterized severe cerebral atrophy) with a variable degree of corpus callosum hypoplasia. One individual also had bilateral polymicrogyria. Epilepsy was present in three and dystonia in five subjects. Eye involvement was also a common finding, including congenital cataract, retinal dystrophy, and in one case congenital Leber amaurosis. Four individuals were diagnosed with hepatosplenomegaly and/or steatosis. Three subjects had anemia, which was characterized as dyserythropoietic in two. Severe feeding difficulties were present in four individuals, requiring assisted feeding in three. Two had sensorineural deafness. Severe growth retardation, generally for all parameters, was present in most cases. Notably, severe microcephaly (typically with Z scores < −5) was universal. Overall, the disorder seems to have a poor prognosis as two affected individuals died in childhood or early adult life." |
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| Mendeliome v0.5567 | VPS4A | Elena Savva Added comment: Comment when marking as ready: PMID: 33186543 - 2x de novo hetorozygous missense variants in the AAA (large ATPase) domain. 1x homozygous missense in the MIT domain (milder phenotype and unaffected parents). Demonstrated defective CD71 trafficking in all 3 patients. PMID: 33186545 - 6x probands with de novo missense variants in the AAA domain. 5 of the variants were at amino acid position 284 (changes to Trp and Gly). Demonstrated that the variants had a dominant-negative effect on VPS4A function. "The six probands with de novo substitutions affecting Glu206 or Arg284 had a consistent phenotype characterized by severe DD, profound ID, and dystonia. Children were very delayed in establishing head control and none achieved independent walking. Other common findings were cerebellar hypoplasia (five individuals out of six, the other showing uncharacterized severe cerebral atrophy) with a variable degree of corpus callosum hypoplasia. One individual also had bilateral polymicrogyria. Epilepsy was present in three and dystonia in five subjects. Eye involvement was also a common finding, including congenital cataract, retinal dystrophy, and in one case congenital Leber amaurosis. Four individuals were diagnosed with hepatosplenomegaly and/or steatosis. Three subjects had anemia, which was characterized as dyserythropoietic in two. Severe feeding difficulties were present in four individuals, requiring assisted feeding in three. Two had sensorineural deafness. Severe growth retardation, generally for all parameters, was present in most cases. Notably, severe microcephaly (typically with Z scores < −5) was universal. Overall, the disorder seems to have a poor prognosis as two affected individuals died in childhood or early adult life." | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 v0.5558 | VPS4A |
Kristin Rigbye gene: VPS4A was added gene: VPS4A was added to Mendeliome. Sources: Literature Mode of inheritance for gene: VPS4A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: VPS4A were set to PMID: 33186543; 33186545 Phenotypes for gene: VPS4A were set to Neurodevelopmental disorder Review for gene: VPS4A was set to GREEN Added comment: PMID: 33186543 - 2x de novo hetorozygous missense variants in the AAA (large ATPase) domain. 1x homozygous missense in the MIT domain (milder phenotype and unaffected parents). Demonstrated defective CD71 trafficking in all 3 patients. PMID: 33186545 - 6x probands with de novo missense variants in the AAA domain. 5 of the variants were at amino acid position 284 (changes to Trp and Gly). Demonstrated that the variants had a dominant-negative effect on VPS4A function. "The six probands with de novo substitutions affecting Glu206 or Arg284 had a consistent phenotype characterized by severe DD, profound ID, and dystonia. Children were very delayed in establishing head control and none achieved independent walking. Other common findings were cerebellar hypoplasia (five individuals out of six, the other showing uncharacterized severe cerebral atrophy) with a variable degree of corpus callosum hypoplasia. One individual also had bilateral polymicrogyria. Epilepsy was present in three and dystonia in five subjects. Eye involvement was also a common finding, including congenital cataract, retinal dystrophy, and in one case congenital Leber amaurosis. Four individuals were diagnosed with hepatosplenomegaly and/or steatosis. Three subjects had anemia, which was characterized as dyserythropoietic in two. Severe feeding difficulties were present in four individuals, requiring assisted feeding in three. Two had sensorineural deafness. Severe growth retardation, generally for all parameters, was present in most cases. Notably, severe microcephaly (typically with Z scores < −5) was universal. Overall, the disorder seems to have a poor prognosis as two affected individuals died in childhood or early adult life." Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.5553 | KDM4B |
Kristin Rigbye gene: KDM4B was added gene: KDM4B was added to Mendeliome. Sources: Literature Mode of inheritance for gene: KDM4B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: KDM4B were set to PMID: 33232677 Phenotypes for gene: KDM4B were set to Global developmental delay, intellectual disability and neuroanatomical defects Review for gene: KDM4B was set to GREEN Added comment: Nine individuals with mono-allelic de novo or inherited variants in KDM4B. All individuals presented with dysmorphic features and global developmental delay (GDD) with language and motor skills most affected. Three individuals had a history of seizures, and four had anomalies on brain imaging ranging from agenesis of the corpus callosum with hydrocephalus to cystic formations, abnormal hippocampi, and polymicrogyria. In a knockout mouse the total brain volume was significantly reduced with decreased size of the hippocampal dentate gyrus, partial agenesis of the corpus callosum, and ventriculomegaly. Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 v0.5473 | TMEM218 |
Bryony Thompson gene: TMEM218 was added gene: TMEM218 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: TMEM218 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: TMEM218 were set to https://doi.org/10.1016/j.xhgg.2020.100016; 25161209 Phenotypes for gene: TMEM218 were set to Joubert syndrome; retinal dystrophy; polycystic kidneys; occipital encephalocele Review for gene: TMEM218 was set to GREEN Added comment: 11 cases in 6 families with homozygous or compound heterozygous missense and nonsense (1) variants, with a Joubert/Meckel syndrome phenotype. Clinical features included the molar tooth sign (N=2), occipital encephalocele (N=5, all fetuses), retinal dystrophy (N=4, all living individuals), polycystic kidneys (N=2), and polydactyly (N=2), without liver involvement. A null mouse model had nephronophthisis and retinal degeneration. No OMIM entry. Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| 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 v0.5389 | 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 v0.5351 | 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.5276 | PLXND1 |
Zornitza Stark gene: PLXND1 was added gene: PLXND1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PLXND1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: PLXND1 were set to 26068067 Phenotypes for gene: PLXND1 were set to Möbius syndrome Review for gene: PLXND1 was set to GREEN Added comment: De novo variants in 3 unrelated individuals with Moebius syndrome with some functional evidence. Sources: Literature |
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| Mendeliome v0.5272 | PRKG2 |
Arina Puzriakova gene: PRKG2 was added gene: PRKG2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PRKG2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PRKG2 were set to 33106379 Phenotypes for gene: PRKG2 were set to Acromesomelic dysplasia Review for gene: PRKG2 was set to GREEN Added comment: - PMID: 33106379 (2020) - Distinct homozygous variants in PRKG2 identified in two unrelated individuals, both with a skeletal dysplasia associated with severe short stature due to acromesomelic limb shortening, brachydactyly, mild to moderate platyspondyly and progressively increasing metaphyseal alterations of the long bones. Functional studies showed both variants result in NMD and disrupt the downstream MAPK signalling pathway in response to FGF2. The role of cGKII, encoded by PRKG2, in skeletal growth has been established in several animal models (references provided in paper). Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 v0.5210 | ATP6V0A1 |
Bryony Thompson gene: ATP6V0A1 was added gene: ATP6V0A1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ATP6V0A1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ATP6V0A1 were set to 30842224; 33057194 Phenotypes for gene: ATP6V0A1 were set to Developmental disorder; Rett syndrome-like Review for gene: ATP6V0A1 was set to AMBER Added comment: PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio developmental disorder study. 11 de novo missense identified in ~10,000 cases with developmental disorders (no other phenotype info provided). PMID: 30842224 - identified a de novo missense variant in a single individual with atypical Rett syndrome phenotype Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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. |
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| 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 v0.5050 | 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 |
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| 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 |
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| 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 v0.4874 | 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.4837 | BSND |
Zornitza Stark changed review comment from: Some individuals with severe Bartter syndrome have been described as having intellectual disability, whereas others with milder symptoms have normal intellect. Sources: Expert list; to: Well established gene-disease association. Sources: Expert list |
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| 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 |
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| 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 v0.4789 | THOC1 |
Melanie Marty changed review comment from: Missense variant identified and segregated with adult-onset hearing loss in 9 affected family members. 12 unaffected individuals also tested. Functional studies showed THOC1 was expressed in mouse and zebrafish hair cells. Furthermore, thoc1 deficiency caused the reduction of hair cell numbers in zebrafish and in mouse it induced hair cell apoptosis. Sources: Literature; to: Missense variant identified and segregated with adult-onset hearing loss in 9 affected family members. 12 unaffected individuals also tested. Functional studies showed THOC1 was expressed in mouse and zebrafish hair cells. Furthermore, thoc1 deficiency caused the reduction of hair cell numbers in zebrafish and the hypomorphic thoc1 in mouse induced hair cell apoptosis. Sources: Literature |
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| Mendeliome v0.4786 | THOC1 |
Melanie Marty changed review comment from: Missense variant identified and segregated with adult-onset hearing loss in 9 affected family members. 12 unaffected individuals also tested. Functional studies showed THOC1 was expressed in mouse and zebrafish hair cells. Furthermore, thoc1 deficiency caused the reduction of hair cell numbers in zebrafish and the induced hair cell apoptosis. Sources: Literature; to: Missense variant identified and segregated with adult-onset hearing loss in 9 affected family members. 12 unaffected individuals also tested. Functional studies showed THOC1 was expressed in mouse and zebrafish hair cells. Furthermore, thoc1 deficiency caused the reduction of hair cell numbers in zebrafish and in mouse it induced hair cell apoptosis. Sources: Literature |
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| Mendeliome v0.4783 | THOC1 |
Melanie Marty changed review comment from: Missense variant identified and segregated with adulthood-onset hearing loss in 9 affected family members. 12 unaffected individuals also tested. Functional studies showed THOC1 was expressed in mouse and zebrafish hair cells. Furthermore, thoc1 deficiency caused the reduction of hair cell numbers in zebrafish and the induced hair cell apoptosis. Sources: Literature; to: Missense variant identified and segregated with adult-onset hearing loss in 9 affected family members. 12 unaffected individuals also tested. Functional studies showed THOC1 was expressed in mouse and zebrafish hair cells. Furthermore, thoc1 deficiency caused the reduction of hair cell numbers in zebrafish and the induced hair cell apoptosis. Sources: Literature |
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| 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 |
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| 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 |
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| Mendeliome v0.4782 | THOC1 |
Melanie Marty gene: THOC1 was added gene: THOC1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: THOC1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: THOC1 were set to 32776944 Phenotypes for gene: THOC1 were set to Nonsyndromic hearing loss Review for gene: THOC1 was set to AMBER Added comment: Missense variant identified and segregated with adulthood-onset hearing loss in 9 affected family members. 12 unaffected individuals also tested. Functional studies showed THOC1 was expressed in mouse and zebrafish hair cells. Furthermore, thoc1 deficiency caused the reduction of hair cell numbers in zebrafish and the induced hair cell apoptosis. Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.4747 | HPDL |
Zornitza Stark commented on gene: HPDL: 17 individuals from 13 families, with a spectrum of neurologic impairment ranging from a severe congenital form without any neurological development (n = 2/17, 12%) to infantile-onset presentations (n = 10/17, 59%) with moderate to severe neurodevelopmental issues, partly with a pathology reminiscent of mitochondrial disease (Leigh-like syndrome), to juvenile-onset spastic paraplegia (n = 5/17, 29%). Frequently observed clinical findings included chronic progression of neurological signs (n = 16/17, 94%), motor developmental delay (n = 12/17, 71%), intellectual impairment (n = 11/17, 65%), microcephaly (n = 9/16, 56%), and seizures/epilepsy (n = 9/17, 53%). Other relevant clinical findings were visual disturbances/strabismus (n = 9/17, 53%) and loss of developmental milestones (n = 6/17, 35%). Acute central respiratory failure leading to life-threatening events requiring partly mechanically assisted ventilation occurred in half of individuals with infantile presentation (n = 5/10, 50%), respectively one third of all individuals (n = 5/17, 29%). Demyelinating neuropathy was present in three individuals (n = 3/11, 27%), with reduced sensory nerve conduction velocity (NCV) in all and severely reduced motor NCV in one. |
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| 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. |
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| 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 v0.4647 | 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. |
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| 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. |
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| Mendeliome v0.4548 | KIAA1161 | Zornitza Stark edited their review of gene: KIAA1161: Added comment: In a cohort study comprising 435 individuals with primary brain calcification, 38 individuals identified with mono-allelic variants in this gene, in addition to 14 with bi-allelic variants. Clinical and imaging penetrance of individuals with bi-allelic variants were 100%, whereas among individuals with heterozygous variants, penetrance of imaging phenotype was reduced to 73.7% (28 of 38) and clinical penetrance was much lower. Most (34 of 38) remained asymptomatic whereas 4 had symptoms of uncertain clinical significance (nonspecific depression, epilepsy and late-onset parkinsonism). Compared with individuals with biallelic MYORG variants, individuals with heterozygous variants had brain calcifications with much lower calcification scores (P < 2e-16). HGNC approved name is MYORG.; Changed publications: 30656188, 30649222, 30460687, 29910000, 31951047; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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. |
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| 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 |
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| 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). --- 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 v0.4395 | SQSTM1 | Zornitza Stark changed review comment from: Four unrelated families, presenting feature of this progressive neurological disorder was ataxia.; to: Nine individuals from four unrelated families. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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. |
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| 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 v0.4380 | KCNA2 | Zornitza Stark commented on gene: KCNA2: Review of 23 affected individuals in PMID 29050392: some variants are LoF and others GoF, and some genotype-phenotype correlations made. The main differences were (i) predominant focal (loss-of-function) versus generalized (gain-of-function) seizures and corresponding epileptic discharges with prominent sleep activation in most cases with loss-of-function mutations; (ii) more severe epilepsy, developmental problems and ataxia, and atrophy of the cerebellum or even the whole brain in about half of the patients with gain-of-function mutations; and (iii) most severe early-onset phenotypes, occasionally with neonatal onset epilepsy and developmental impairment, as well as generalised and focal seizures and EEG abnormalities for patients with gain- and loss-of-function mutations. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| 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 v0.4304 | 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 |
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| 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 |
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| 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 v0.4249 | 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 v0.4229 | 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: Association study (PMID 32330418) found enrichment of non-coding and LoF TET2 variants in cohort of individuals with early onset dementia, unclear if this is monogenic or polygenic contribution.; to: Mono-allelic variants: Association study (PMID 32330418) found enrichment of non-coding and LoF TET2 variants in cohort of individuals with early onset dementia, unclear if this is monogenic or polygenic contribution. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.4134 | TRAPPC2L |
Arina Puzriakova gene: TRAPPC2L was added gene: TRAPPC2L was added to Mendeliome. Sources: Literature Mode of inheritance for gene: TRAPPC2L was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: TRAPPC2L were set to 30120216; 32843486 Phenotypes for gene: TRAPPC2L were set to Encephalopathy, progressive, early-onset, with episodic rhabdomyolysis, 618331 Review for gene: TRAPPC2L was set to AMBER Added comment: 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 |
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| 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 |
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| 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 v0.4091 | 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 | NOTCH3 |
Eleanor Williams gene: NOTCH3 was added gene: NOTCH3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: NOTCH3 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: NOTCH3 were set to 31960911 Phenotypes for gene: NOTCH3 were set to CADASIL Review for gene: NOTCH3 was set to AMBER Added comment: PMID: 31960911 - Gravesteijn et al 2020 - describe a family with a unique cysteine-altering NOTCH3 variant in exon 9 in 5 individuals, which is predicted to cause natural exon 9 skipping. This mimics the therapeutic NOTCH3 cysteine correction approach and allows the effect of cysteine corrective exon skipping on NOTCH3 protein aggregation and disease severity in humans to be studied. In this family the CADASIL phenotype was mild. Note this gene is rated green on the Neurodegenerative disorders - adult onset panel in the Genomics England instance of PanelApp https://panelapp.genomicsengland.co.uk/panels/474/gene/NOTCH3/ Sources: Literature |
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| Mendeliome v0.4091 | TRPM7 | Eleanor Williams commented on gene: TRPM7: PMID: 31423533 - Cartwright et al 2020 - functional studies on four heterozygous nonsynonymous variants that were observed in TRPM7 in four individual cases of unexplained still birth which were screened for variants in 35 candidate genes in PMID: 29874177 (Munroe et al 2018). TRPM7 is a ubiquitously expressed ion channel known to regulate cardiac development and repolarization in mice. They found two variants in TRPM7, p.G179V and p.T860M, reduce ion channel current expression, which in the case of p.T860M is likely due to rapid degradation mediated by the proteasome. In addition, the p.R494Q TRPM7 variant significantly increases TRPM7 ion channel current, in a cell-type specific manner. They believe that TRPM7 may play a key role in ensuring correct cardiac development of the fetus. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| 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 |
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| 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 v0.3872 | 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.3817 | KRT17 | Zornitza Stark changed review comment from: Also known as Jackson-Lawler type, the main clinical features are nail dystrophy, palmoplantar keratoderma, oral leucokeratosis and cysts. PMID: 31823354; - cohort of 815 individuals, 134 patients had variants in KRT17 - approx 61.8% presented with palmar keratoderma and approx 82.8% with plantar keratoderma; to: Also known as Jackson-Lawler type, the main clinical features are nail dystrophy, palmoplantar keratoderma, oral leucokeratosis and cysts. PMID: 31823354; - cohort of 815 individuals, 134 patients had variants in KRT17 - approx 61.8% presented with palmar keratoderma and approx 82.8% with plantar keratoderma. Steatocystoma multiplex is an allelic disorder. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.3745 | DSG3 |
Zornitza Stark gene: DSG3 was added gene: DSG3 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: DSG3 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DSG3 were set to 30528827 Phenotypes for gene: DSG3 were set to Mucosal blistering Review for gene: DSG3 was set to RED Added comment: One individual with recurrent blisters and erosions in the oral mucosa since birth homozygous for p(.R287*). Sources: Expert list |
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| 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 |
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| Mendeliome v0.3728 | SGK3 |
Zornitza Stark gene: SGK3 was added gene: SGK3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SGK3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SGK3 were set to 31821448 Phenotypes for gene: SGK3 were set to Hypophosphatemic rickets Review for gene: SGK3 was set to RED Added comment: 5 individuals from one family where a splice site variant segregated with disease. Sources: Literature |
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| 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 v0.3675 | 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 |
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| 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 |
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| Mendeliome v0.3669 | C3orf52 |
Zornitza Stark gene: C3orf52 was added gene: C3orf52 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: C3orf52 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: C3orf52 were set to 32336749 Phenotypes for gene: C3orf52 were set to Localized hypotrichosis Review for gene: C3orf52 was set to AMBER Added comment: 2 families with 4 individuals with localised hypotrichosis and homozygous variants in C3ORF52. C3ORF52 was found to be coexpressed with lipase H in the inner root sheath of the hair follicle and the two proteins were found to directly interact. The LAH-causing variants were associated with decreased C3ORF52 expression and resulted in markedly reduced lipase H–mediated 2-acyl-lysophosphatidic acid (LPA) biosynthesis. Same pathway as two other genes for localised hypotrichosis (LIPH and LPAR6) Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.3539 | LARS |
Zornitza Stark Added comment: Comment when marking as ready: Lenz et al (2020 - PMID: 32699352) review the phenotype of 25 affected individuals from 15 families. Seizures occurred in 19/24 and were commonly associated with infections. Encephalopathic episodes (in 13 patients) accompanied by seizures up to status epilepticus occurred independently of hepatic decompensation. In addition 22/24 presented with neurodevelopmental delay. The authors comment that cognitive impairment was present in 13/17 individuals (mild-severe) whereas most presented with learning disabilities. These patients will most likely investigated for their liver disease (although presentation was highly variable and/or very mild in few). The gene encodes a cytoplasmic amino-acyl tRNA synthetase (ARS) with neurologic manifestations observed in almost all patients (and seizures / DD and ID common to other disorders due to mutations in other genes encoding for ARSs). Please note that the HGNC approved symbol for this gene is LARS1. |
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| 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 |
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| 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 v0.3327 | 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 v0.3278 | PYCR1 |
Dean Phelan changed review comment from: Aortopathy/Connective tissue review Variants in this gene are associated with Cutis Laxa: Cutis laxa type 2 (ARCL2, [MIM 219200]) is an autosomal-recessive multisystem disorder with prominent connective-tissue features characterized by the appearance of premature aging, particularly wrinkled and lax skin with reduced elasticity. GEL PanelApp: Green in EDS panel - clinical features overlapping EDS Cutis laxa, autosomal recessive, type IIIB (ARCL3B) PMID: 19648921,4076251, 22052856 Cutis laxa, autosomal recessive, type IIB (ARCL2B) PMID: 19576563, 19648921, 9648921, 22052856, 28294978 AR PMID: 27756598: a homozygous mutation in PYCR1 segregating in the family with the affected individuals with complex connective tissue disorder and severe intellectual disability.; to: Aortopathy/Connective tissue review Variants in this gene are associated with Cutis Laxa: Cutis laxa type 2 (ARCL2, [MIM 219200]) is an autosomal-recessive multisystem disorder with prominent connective-tissue features characterized by the appearance of premature aging, particularly wrinkled and lax skin with reduced elasticity. GEL PanelApp: Green in EDS panel - clinical features overlapping EDS Cutis laxa, autosomal recessive, type IIIB (ARCL3B) PMID: 19648921,4076251, 22052856 Cutis laxa, autosomal recessive, type IIB (ARCL2B) PMID: 19576563, 19648921, 9648921, 22052856, 28294978 AR PMID: 27756598: a homozygous mutation in PYCR1 segregating in the family with the affected individuals with complex connective tissue disorder and severe intellectual disability. |
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| 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 |
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| 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 |
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| Mendeliome v0.3264 | DNMBP |
Seb Lunke gene: DNMBP was added gene: DNMBP was added to Mendeliome. Sources: Literature Mode of inheritance for gene: DNMBP was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DNMBP were set to 30290152 Phenotypes for gene: DNMBP were set to congenital cataract Review for gene: DNMBP was set to GREEN gene: DNMBP was marked as current diagnostic Added comment: Multiple individuals from three independent large consanguineous families with bilateral infantile cataracts. Seperate hom nonsense variants. Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.3241 | BTG4 |
Ain Roesley gene: BTG4 was added gene: BTG4 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: BTG4 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: BTG4 were set to PMID: 32502391 Phenotypes for gene: BTG4 were set to Zygotic cleavage failure (ZCF) Penetrance for gene: BTG4 were set to unknown Added comment: PMID: 32502391 - 4 affecteds from 4 families including 3 consanguineous families. 3 PTVs + 1 splice. - in vitro assays in HELA cells showed all PTVs had complete loss of protein. The missense variant had abolished interaction with CNOT7 - In vivo studies further demonstrated that the process of maternal mRNA decay was disrupted in the zygotes of the affected individuals, which provides a mechanistic explanation for the phenotype of ZCF Sources: Literature |
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| Mendeliome v0.3239 | RAP1GDS1 |
Zornitza Stark gene: RAP1GDS1 was added gene: RAP1GDS1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RAP1GDS1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: RAP1GDS1 were set to 32431071 Phenotypes for gene: RAP1GDS1 were set to Intellectual disability; dysmorphic features Review for gene: RAP1GDS1 was set to AMBER Added comment: Four individuals from two consanguineous families, same homozygous splice site variant detected. Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 | 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.3196 | EXOC7 |
Zornitza Stark gene: EXOC7 was added gene: EXOC7 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: EXOC7 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: EXOC7 were set to 32103185 Phenotypes for gene: EXOC7 were set to brain atrophy; seizures; developmental delay; microcephaly Review for gene: EXOC7 was set to GREEN Added comment: 4 families with 8 affected individuals with brain atrophy, seizures, and developmental delay, and in more severe cases microcephaly and infantile death. Four novel homozygous or comp.heterozygous variants found in EXOC7, which segregated with disease in the families. They showed that EXOC7, a member of the mammalian exocyst complex, is highly expressed in developing human cortex. In addition, a zebrafish model of Exoc7 deficiency recapitulates the human disorder with increased apoptosis and decreased progenitor cells during telencephalon development, suggesting that the brain atrophy in human cases reflects neuronal degeneration. Sources: Literature |
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| 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 v0.3051 | TRIM69 |
Zornitza Stark gene: TRIM69 was added gene: TRIM69 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: TRIM69 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: TRIM69 were set to 22105173 Phenotypes for gene: TRIM69 were set to Susceptibility to herpes simplex encephalitis Review for gene: TRIM69 was set to RED Added comment: One individual with bi-allelic and one individual with mono-allelic variants in this gene described. Sources: Expert list |
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| 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 |
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| Mendeliome v0.3014 | DSCR3 |
Zornitza Stark gene: DSCR3 was added gene: DSCR3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: DSCR3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: DSCR3 were set to 31845315 Phenotypes for gene: DSCR3 were set to Intellectual disability, no OMIM # yet Review for gene: DSCR3 was set to RED Added comment: 1 family/2 cousins with cognitive impairment, growth failure, skeletal abnormalities, and distinctive facial features. Both shared the homozygous nonsense variant c.178G>T (p.Glu60*) in the VPS26C gene. This gene encodes VPS26C, a member of the retriever integral membrane protein recycling pathway. The nature of the variant which is predicted to result in loss‐of‐function, expression studies revealing significant reduction in the mutant transcript, and the co‐segregation of the homozygous variant with the phenotype in two affected individuals. Sources: Literature |
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| 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 |
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| 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 v0.2956 | RIMS2 |
Paul De Fazio changed review comment from: Biallelic LoF variants segregate with Syndromic Congenital Cone-Rod Synaptic Disease in 7 individuals across 4 families. Some functional studies related to insulin secretion but they are non-significant. Sources: Literature; to: Biallelic LoF variants segregate with Syndromic Congenital Cone-Rod Synaptic Disease in 7 individuals across 4 families. Some functional studies related to insulin secretion but they are non-significant. Several individuals had autism. One had night blindness. Sources: Literature |
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| Mendeliome v0.2953 | SOX6 |
Paul De Fazio changed review comment from: 6 LoF, 4 missense, and 6 intragenic deletion variants identified in individuals with a neurodevelopmental syndrome, however the number of families is unclear to me (paper says 19 individuals from 17 families). 12 were de novo. Sources: Literature; to: 6 LoF, 4 missense, and 6 intragenic deletion variants identified in individuals with a neurodevelopmental syndrome. Paper says 19 individuals from 17 families. 12 were de novo. Sources: Literature |
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| Mendeliome v0.2952 | SOX6 |
Paul De Fazio changed review comment from: 6 LoF, 4 missense, and 6 intragenic deletion variants identified in individuals with a neurodevelopmental syndrome, however the number of families is unclear to me. Sources: Literature; to: 6 LoF, 4 missense, and 6 intragenic deletion variants identified in individuals with a neurodevelopmental syndrome, however the number of families is unclear to me (paper says 19 individuals from 17 families). 12 were de novo. Sources: Literature |
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| Mendeliome v0.2949 | SOX6 |
Paul De Fazio changed review comment from: 6 LoF and 4 missense variants identified in individuals with a neurodevelopmental syndrome, however the number of families is unclear to me. Sources: Literature; to: 6 LoF, 4 missense, and 6 intragenic deletion variants identified in individuals with a neurodevelopmental syndrome, however the number of families is unclear to me. Sources: Literature |
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| Mendeliome v0.2943 | SOX6 |
Paul De Fazio gene: SOX6 was added gene: SOX6 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SOX6 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SOX6 were set to 32442410 Phenotypes for gene: SOX6 were set to ADHD; Craniosynostosis; Osteochondromas Added comment: 6 LoF and 4 missense variants identified in individuals with a neurodevelopmental syndrome, however the number of families is unclear to me. Sources: Literature |
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| Mendeliome v0.2943 | RIMS2 |
Paul De Fazio changed review comment from: Segregates with Syndromic Congenital Cone-Rod Synaptic Disease in 7 individuals across 4 families. Some functional studies related to insulin secretion but they are non-significant. Sources: Literature; to: Biallelic LoF variants segregate with Syndromic Congenital Cone-Rod Synaptic Disease in 7 individuals across 4 families. Some functional studies related to insulin secretion but they are non-significant. Sources: Literature |
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| Mendeliome v0.2943 | RIMS2 |
Paul De Fazio gene: RIMS2 was added gene: RIMS2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RIMS2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: RIMS2 were set to 32470375 Review for gene: RIMS2 was set to GREEN Added comment: Segregates with Syndromic Congenital Cone-Rod Synaptic Disease in 7 individuals across 4 families. Some functional studies related to insulin secretion but they are non-significant. Sources: Literature |
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| Mendeliome v0.2940 | SORD |
Seb Lunke gene: SORD was added gene: SORD was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SORD was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SORD were set to 32367058 Phenotypes for gene: SORD were set to isolated hereditary neuropathy Review for gene: SORD was set to GREEN gene: SORD was marked as current diagnostic Added comment: 45 individuals from 38 families across multiple ancestries carrying the nonsense c.757delG (p.Ala253GlnfsTer27) variant in SORD, in either a homozygous or compound heterozygous state Sources: Literature |
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| 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 |
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| 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 v0.2842 | 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. |
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| 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 |
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| 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 |
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| Mendeliome v0.2787 | TET2 | Zornitza Stark edited their review of gene: TET2: Added comment: Association study (PMID 32330418) found enrichment of non-coding and LoF TET2 variants in cohort of individuals with early onset dementia, unclear if this is monogenic or polygenic contribution.; Changed publications: 30890702, 31827242, 32330418 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 v0.2634 | 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 |
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| 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 |
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| Mendeliome v0.2626 | RAMP2 |
Zornitza Stark gene: RAMP2 was added gene: RAMP2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RAMP2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: RAMP2 were set to 31000793 Phenotypes for gene: RAMP2 were set to Primary open angle glaucoma Review for gene: RAMP2 was set to AMBER Added comment: Six variants identified in 16 of 4763 POAG patients from large cohorts; none identified in 10,953 control individuals. Some functional data. Sources: Literature |
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| 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 |
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| Mendeliome v0.2620 | POLR3GL |
Paul De Fazio gene: POLR3GL was added gene: POLR3GL was added to Mendeliome. Sources: Literature Mode of inheritance for gene: POLR3GL was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: POLR3GL were set to 31089205; 31695177 Phenotypes for gene: POLR3GL were set to endosteal hyperostosis; oligodontia; growth retardation; facial dysmorphisms; lipodystrophy Review for gene: POLR3GL was set to AMBER gene: POLR3GL was marked as current diagnostic Added comment: Biallelic canonical splice variants were identified in monozygotic twins and another individual with similar phenotypes from 2 unrelated families. Variants were inherited from carrier parents. RNA studies confirmed exon skipping occurs in all affected individuals. A separate study identified a homozygous nonsense variant in an individual with features of Neonatal progeroid syndrome/Wiedemann–Rautenstrauch syndrome. Quantitative PCR showed reduction in mRNA suggestive of NMD. Sources: Literature |
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| Mendeliome v0.2611 | PDGFRB |
Ee Ming Wong changed review comment from: - > 3 unrelated families - Functional studies on patient fibroblasts, HeLa and HEK293 cells harbouring mutant constructs demonstrate constitutive tyrosine kinase activation (gain of function) compared with WT constructs; to: - > 3 unrelated individuals diagnosed with Penttinen syndrome - Functional studies on patient fibroblasts, HeLa and HEK293 cells harbouring mutant constructs demonstrate constitutive tyrosine kinase activation (gain of function) compared with WT constructs |
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| Mendeliome v0.2598 | WDR83OS |
Ee Ming Wong gene: WDR83OS was added gene: WDR83OS was added to Mendeliome. Sources: Literature Mode of inheritance for gene: WDR83OS was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: WDR83OS were set to PMID: 30250217 Phenotypes for gene: WDR83OS were set to Cholestasis Review for gene: WDR83OS was set to RED Added comment: - 1 consanguineous family with 3 affected individuals found to carry a homozygous splice site variant in WDR83OS - The variant results in an aberrant truncated RNA transcript as demonstrated by RT-PCR Sources: Literature |
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| Mendeliome v0.2592 | LSR |
Ee Ming Wong gene: LSR was added gene: LSR was added to Mendeliome. Sources: Literature Mode of inheritance for gene: LSR was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: LSR were set to PMID: 30250217 Phenotypes for gene: LSR were set to transient neonatal cholestasis; intellectual disability; short stature Review for gene: LSR was set to RED Added comment: 1 individual from 1 consanguineous family carrying a homozygous missense variant in LSR Sources: Literature |
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| 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 |
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| Mendeliome v0.2581 | LRRC32 |
Zornitza Stark gene: LRRC32 was added gene: LRRC32 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: LRRC32 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: LRRC32 were set to 30976112 Phenotypes for gene: LRRC32 were set to Intellectual disability; cleft palate; proliferative retinopathy Review for gene: LRRC32 was set to AMBER Added comment: Three individuals from two consanguineous families segregated the same homozygous bi-allelic variant, c.1630C>T; p.(Arg544Ter), shared haplotype indicative of founder effect. Mouse model has cleft palate and neonatal death. Sources: Literature |
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| Mendeliome v0.2556 | THG1L |
Zornitza Stark changed review comment from: Five individuals from two Ashkenazi Jewish families with same homozygous missense variant, and another family ascertained through a large microcephaly cohort, also with SCA. Sources: Literature; to: Four Ashkenazi Jewish families with same homozygous missense variant, and another family ascertained through a large microcephaly cohort, also with SCA. A carrier rate of 0.8%, but no THG1L V55A homozygotes, was found in a cohort of 3,232 unrelated Ashkenazi Jewish individuals, and no homozygotes found in Exac or gnomAD. Sources: Literature |
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| Mendeliome v0.2554 | THG1L |
Zornitza Stark gene: THG1L was added gene: THG1L was added to Mendeliome. Sources: Literature Mode of inheritance for gene: THG1L was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: THG1L were set to 27307223; 31168944; 30214071 Phenotypes for gene: THG1L were set to Spinocerebellar ataxia, autosomal recessive 28, MIM# 618800 Review for gene: THG1L was set to AMBER Added comment: Five individuals from two Ashkenazi Jewish families with same homozygous missense variant, and another family ascertained through a large microcephaly cohort, also with SCA. Sources: Literature |
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| 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 |
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| 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 |
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| 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 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 |
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| Mendeliome v0.2440 | GFAP | Paul De Fazio changed review comment from: Many (>20) de novo individuals described with Alexander disease. Three forms of disease are described with decreasing severity: infant-onset, juveline-onset, and adult-onset. Later-onset cases are more phenotypically heterogeneous.; to: Many (>10) de novo individuals described with Alexander disease. Three forms of disease are described with decreasing severity: infant-onset, juveline-onset, and adult-onset. Later-onset cases are more phenotypically heterogeneous. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2440 | GFAP | Paul De Fazio changed review comment from: Many (>10) de novo individuals described with Alexander disease. Three forms of disease are described with decreasing severity: infant-onset, juveline-onset, and adult-onset. Later-onset cases are more phenotypically heterogeneous.; to: Many (>20) de novo individuals described with Alexander disease. Three forms of disease are described with decreasing severity: infant-onset, juveline-onset, and adult-onset. Later-onset cases are more phenotypically heterogeneous. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| Mendeliome v0.2439 | POLR1B |
Paul De Fazio changed review comment from: 6 individuals with Treacher-Collins syndrome described: 3 with de novo variants, one inherited from a mosaic father, and two inherited from affected mothers. Knockdown in zebrafish mimics the phenotype. Sources: Literature; to: 6 individuals with Treacher-Collins syndrome described: 3 with de novo variants, one inherited from a mosaic father, and two inherited from affected mothers. Knockdown in zebrafish mimics the phenotype. Sources: Literature |
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| Mendeliome v0.2439 | POLR1B |
Paul De Fazio gene: POLR1B was added gene: POLR1B was added to Mendeliome. Sources: Literature Mode of inheritance for gene: POLR1B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: POLR1B were set to 31649276 Phenotypes for gene: POLR1B were set to bilateral malar and mandibular hypoplasia; microtia; coloboma; downslanting palpebral fissures; conductive deafness; cleft palate; heart malformations Review for gene: POLR1B was set to AMBER gene: POLR1B was marked as current diagnostic Added comment: 6 individuals with Treacher-Collins syndrome described: 3 with de novo variants, one inherited from a mosaic father, and two inherited from affected mothers. Knockdown in zebrafish mimics the phenotype. Sources: Literature |
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| Mendeliome v0.2418 | TBX6 |
Alison Yeung Added comment: Comment when marking as ready: Biallelic variants associated with spondylocostal dysostosis in >3 unrelated individuals Mouse model recapitulates phenotype |
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| Mendeliome v0.2383 | GFAP | Paul De Fazio changed review comment from: Many (>10) de novo individuals described with Alexander disease. Three forms of disease are described with decreasing severity: infant-onset, juveline-onset, and adult-onset. Later-onset cases are more phenotypically heterogeneous.; to: Many (>10) de novo individuals described with Alexander disease. Three forms of disease are described with decreasing severity: infant-onset, juveline-onset, and adult-onset. Later-onset cases are more phenotypically heterogeneous. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2383 | GFAP | Paul De Fazio changed review comment from: Many (>10) de novo individuals described with Alexander disease. Three forms of disease are described with decreasing severity: infant-onset, juveline-onset, and adult-onset. Later-onset cases are more phenotypically heterogeneous.; to: Many (>10) de novo individuals described with Alexander disease. Three forms of disease are described with decreasing severity: infant-onset, juveline-onset, and adult-onset. Later-onset cases are more phenotypically heterogeneous. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| Mendeliome v0.2365 | SAMD12 |
Melanie Marty gene: SAMD12 was added gene: SAMD12 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SAMD12 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SAMD12 were set to 30194086; 29507423 Phenotypes for gene: SAMD12 were set to Epilepsy, familial adult myoclonic, 1 601068 Review for gene: SAMD12 was set to GREEN Added comment: Repeat expansions of intronic TTTCA and TTTTA motifs within SAMD12 have been identified in over 50 Japanese and Chinese families. Most families with affected individuals were heterozygous however 4 patients from 3 families had homozygous repeat expansions, which was associated with a more severe phenotype. Western blot analysis showed decreased levels of the protein in patient brains. Sources: Literature |
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| Mendeliome v0.2362 | SYCP2 |
Zornitza Stark gene: SYCP2 was added gene: SYCP2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SYCP2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SYCP2 were set to 32092049; 31866047 Phenotypes for gene: SYCP2 were set to Male infertility Review for gene: SYCP2 was set to GREEN Added comment: Four individuals and a zebrafish model. Sources: Literature |
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| 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 |
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| 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 v0.2360 | 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 |
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| 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 |
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| 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 v0.2213 | SOX11 |
Zornitza Stark changed review comment from: Heterozygous variant in a patient with Coffin-Siris like syndrome and small kidney; but also rare variants identified in a non-syndromic CAKUT cohort with some functional data. Sources: Expert list; to: Coffin-Siris syndrome: two individuals with de novo mono-allelic missense variants in this gene, mouse model. CAKUT: Heterozygous variant in a patient with Coffin-Siris like syndrome and small kidney; but also rare variants identified in a non-syndromic CAKUT cohort with some functional data. Sources: Expert list |
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| 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 v0.2200 | 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.2171 | ERAL1 |
Zornitza Stark gene: ERAL1 was added gene: ERAL1 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: ERAL1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ERAL1 were set to 28449065 Phenotypes for gene: ERAL1 were set to Perrault syndrome 6, MIM# 617565 Review for gene: ERAL1 was set to AMBER Added comment: Three individuals from same small geographical location with homozygous missense variant in this gene, functional data. Sources: Expert list |
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| 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 v0.2013 | 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 |
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| 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 |
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| Mendeliome v0.1995 | ALPI |
Zornitza Stark gene: ALPI was added gene: ALPI was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: ALPI was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ALPI were set to 29567797 Phenotypes for gene: ALPI were set to Inflammatory bowel disease Review for gene: ALPI was set to AMBER Added comment: Two unrelated individuals, some functional data. Sources: Expert list |
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| 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 |
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| 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 v0.1987 | IRAK1 |
Zornitza Stark gene: IRAK1 was added gene: IRAK1 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: IRAK1 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females Publications for gene: IRAK1 were set to 28069966 Phenotypes for gene: IRAK1 were set to Susceptibility to bacterial infections Review for gene: IRAK1 was set to RED Added comment: Single individual with MECP2 and IRAK1 deletion, died in infancy, immunological phenotype not fully elucidated. In vitro studies. Sources: Expert list |
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| Mendeliome v0.1985 | DBR1 |
Zornitza Stark gene: DBR1 was added gene: DBR1 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: DBR1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DBR1 were set to 29474921 Phenotypes for gene: DBR1 were set to Viral infections of the brainstem Review for gene: DBR1 was set to GREEN Added comment: Seven individuals from three unrelated families with viral brainstem encephalitis and bi-allelic hypomorphic variants. Sources: Expert list |
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| Mendeliome v0.1982 | POLR3C |
Zornitza Stark gene: POLR3C was added gene: POLR3C was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: POLR3C was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: POLR3C were set to 28783042 Phenotypes for gene: POLR3C were set to Severe VZV infection Review for gene: POLR3C was set to AMBER Added comment: One individual with POLR3C variant and another individual with both POL3RA and POL3RC variants. Sources: Expert list |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.1964 | SPPL2A |
Zornitza Stark gene: SPPL2A was added gene: SPPL2A was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: SPPL2A was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SPPL2A were set to 30127434 Phenotypes for gene: SPPL2A were set to Susceptibility to mycobacteria and Salmonella Review for gene: SPPL2A was set to AMBER Added comment: Three individuals from two unrelated consanguineous family with two different homozygous splice site variants, functional data. Sources: Expert list |
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| 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 |
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| 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 |
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| Mendeliome v0.1950 | TNFRSF9 |
Zornitza Stark gene: TNFRSF9 was added gene: TNFRSF9 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: TNFRSF9 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: TNFRSF9 were set to 30872117; 31501153 Phenotypes for gene: TNFRSF9 were set to EBV lymphoproliferation; B-cell lymphoma; Chronic active EBV infection Review for gene: TNFRSF9 was set to GREEN Added comment: Six unrelated individuals, two with same homozygous G109S missense variant, functional data. Sources: Expert list |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.1917 | LIG1 |
Zornitza Stark gene: LIG1 was added gene: LIG1 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: LIG1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: LIG1 were set to 30395541 Phenotypes for gene: LIG1 were set to Combined immunodeficiency; Lymphopaenia; Hypogammaglobulinaemia; Recurrent bacterial and viral infections; Growth retardation; Sun sensitivity, radiation sensitivity; Macrocytosis Review for gene: LIG1 was set to GREEN Added comment: Five individuals from three families. Sources: Expert list |
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| 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 |
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| 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 |
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| 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 v0.1890 | NEK10 |
Zornitza Stark gene: NEK10 was added gene: NEK10 was added to Mendeliome. Sources: NHS GMS Mode of inheritance for gene: NEK10 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NEK10 were set to 31959991 Phenotypes for gene: NEK10 were set to Primary ciliary dyskinesia; bronchiectasis Review for gene: NEK10 was set to GREEN Added comment: Nine individuals from 5 unrelated families, some functional data. Sources: NHS GMS |
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| 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 |
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| Mendeliome v0.1886 | ADARB1 |
Zornitza Stark gene: ADARB1 was added gene: ADARB1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ADARB1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ADARB1 were set to 32220291 Phenotypes for gene: ADARB1 were set to Intellectual disability; microcephaly; seizures Review for gene: ADARB1 was set to GREEN Added comment: Four unrelated individuals with bi-allelic variants in this gene. Sources: Literature |
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| Mendeliome v0.1857 | CHD3 | Zornitza Stark Added comment: Comment when marking as ready: Over 30 unrelated individuals reported. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1845 | AGTPBP1 |
Zornitza Stark gene: AGTPBP1 was added gene: AGTPBP1 was added to Mendeliome. Sources: NHS GMS Mode of inheritance for gene: AGTPBP1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: AGTPBP1 were set to 30420557 Phenotypes for gene: AGTPBP1 were set to Early onset cerebellar atrophy, developmental delay, and feeding and respiratory difficulties, severe motor neuronopathy; Neurodegeneration, childhood-onset, with cerebellar atrophy, 618276 Review for gene: AGTPBP1 was set to GREEN Added comment: Thirteen individuals with bi-allelic variants in this gene, complex neurological phenotype of dev delay/ID, cerebellar atrophy and neuropathy, severe progressive course in six. Sources: NHS GMS |
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| Mendeliome v0.1841 | EIF2AK2 |
Zornitza Stark gene: EIF2AK2 was added gene: EIF2AK2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: EIF2AK2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: EIF2AK2 were set to 32197074 Phenotypes for gene: EIF2AK2 were set to Intellectual disability; white matter abnormalities; ataxia; regression with febrile illness Review for gene: EIF2AK2 was set to GREEN Added comment: Eight individuals with de novo variants and complex neurodevelopmental phenotype. Sources: Literature |
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| 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 |
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| Mendeliome v0.1838 | NOVA2 |
Zornitza Stark gene: NOVA2 was added gene: NOVA2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: NOVA2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: NOVA2 were set to 32197073 Phenotypes for gene: NOVA2 were set to Intellectual disability; autism; hypotonia; spasticity; ataxia Mode of pathogenicity for gene: NOVA2 was set to Other Review for gene: NOVA2 was set to GREEN Added comment: Six individuals with de novo frameshift variants resulting in C-terminal extension suggesting partial LoF as mechanism. Sources: Literature |
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| 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 v0.1801 | 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 v0.1690 | 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.1636 | NUDT2 |
Zornitza Stark gene: NUDT2 was added gene: NUDT2 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: NUDT2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NUDT2 were set to 27431290; 30059600 Phenotypes for gene: NUDT2 were set to Muscular hypotonia; Global developmental delay; Intellectual disability Review for gene: NUDT2 was set to AMBER Added comment: 7 affected individuals from 4 Saudi families, with same homozygous truncating variant. Sources: Expert list |
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| 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 |
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| Mendeliome v0.1553 | TMEM94 |
Zornitza Stark gene: TMEM94 was added gene: TMEM94 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: TMEM94 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: TMEM94 were set to 30526868 Phenotypes for gene: TMEM94 were set to Intellectual developmental disorder with cardiac defects and dysmorphic facies, MIM#618316 Review for gene: TMEM94 was set to GREEN Added comment: 10 individuals from 6 unrelated families. Sources: Expert list |
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| 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 |
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| Mendeliome v0.1443 | ARSG |
Zornitza Stark gene: ARSG was added gene: ARSG was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: ARSG was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ARSG were set to 29300381; 20679209; 25452429; 26975023 Phenotypes for gene: ARSG were set to Usher syndrome, type IV, MIM# 618144 Review for gene: ARSG was set to RED Added comment: Atypical late-onset RP/HL phenotype described in 5 individuals from three Yemenite Jewish families. Same homozygous missense variant identified in all, founder effect. Animal models associated with neuronal ceroid lipofuscinosis. Sources: Expert list |
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| 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 |
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| Mendeliome v0.1301 | IDUA | Zornitza Stark Marked gene: IDUA as ready | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1301 | IDUA | Zornitza Stark Gene: idua has been classified as Green List (High Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1301 | IDUA | Zornitza Stark Phenotypes for gene: IDUA were changed from to Mucopolysaccharidosis Ih (MIM#607014); Mucopolysaccharidosis Ih/s (MIM#607015); Mucopolysaccharidosis Is (MIM#6070) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1300 | IDUA | Zornitza Stark Publications for gene: IDUA were set to | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1299 | IDUA | Zornitza Stark Mode of inheritance for gene: IDUA was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1289 | IDUA | Crystle Lee reviewed gene: IDUA: Rating: GREEN; Mode of pathogenicity: None; Publications: PMID: 28752568, 12865757; Phenotypes: Mucopolysaccharidosis Ih (MIM#607014), Mucopolysaccharidosis Ih/s (MIM#607015), Mucopolysaccharidosis Is (MIM#6070); Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 v0.1025 | 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.975 | IKZF5 |
Zornitza Stark gene: IKZF5 was added gene: IKZF5 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: IKZF5 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: IKZF5 were set to 31217188 Phenotypes for gene: IKZF5 were set to Thrombocytopaenia Review for gene: IKZF5 was set to GREEN Added comment: Five unrelated individuals with missense variants in this gene. Two de novo, three segregated with disease Sources: Expert Review |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.912 | DHPS |
Zornitza Stark gene: DHPS was added gene: DHPS was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: DHPS was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DHPS were set to 30661771 Phenotypes for gene: DHPS were set to Neurodevelopmental disorder with seizures and speech and walking impairment, MIM#618480 Review for gene: DHPS was set to GREEN gene: DHPS was marked as current diagnostic Added comment: 5 individuals from 4 unrelated families with biallelic pathogenic variants in DHPS, note one variant is recurrent (c.518A>G or p.Asn173Ser). The phenotype consisted of DD/ID (5/5), tone abnormalities (hypotonia/hypertonia/spasticity - 5/5), seizures (5/5 - in one case though unclear staring spells) with EEG abnormalities (5/5). Additionally most individuals displayed behavioral issues, or some common facial features Sources: Expert list |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.797 | TET3 |
Zornitza Stark gene: TET3 was added gene: TET3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: TET3 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: TET3 were set to 31928709 Phenotypes for gene: TET3 were set to Intellectual disability; dysmorphic features; abnormal growth; movement disorders Review for gene: TET3 was set to GREEN Added comment: Eleven individuals from 8 families described. Mono-allelic frameshift and nonsense variants occur throughout the coding region. Mono-allelic and bi-allelic missense variants localize to conserved residues; all but one such variant occur within the catalytic domain, and most display hypomorphic function in an assay of catalytic activity. Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.684 | TRIM28 |
Zornitza Stark gene: TRIM28 was added gene: TRIM28 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: TRIM28 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: TRIM28 were set to 30694527 Phenotypes for gene: TRIM28 were set to Wilm's tumour Review for gene: TRIM28 was set to GREEN Added comment: Eleven individuals with germline variants identified; plus one somatic. Exome sequencing on eight tumor DNA samples from six individuals showed loss-of-heterozygosity (LOH) of the TRIM28-locus by mitotic recombination in seven tumors, suggesting that TRIM28 functions as a tumor suppressor gene in Wilms tumor development. Sources: Literature |
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| Mendeliome v0.679 | DEF6 |
Zornitza Stark gene: DEF6 was added gene: DEF6 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: DEF6 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DEF6 were set to 31308374 Phenotypes for gene: DEF6 were set to Systemic autoimmunity Review for gene: DEF6 was set to AMBER Added comment: Three individuals from two families, some functional data. Sources: Literature |
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| 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 |
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| 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 |
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| Mendeliome v0.660 | AIMP2 |
Zornitza Stark gene: AIMP2 was added gene: AIMP2 was added to Mendeliome_VCGS. Sources: Expert list Mode of inheritance for gene: AIMP2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: AIMP2 were set to 29215095 Phenotypes for gene: AIMP2 were set to Leukodystrophy, hypomyelinating, 17 618006 Review for gene: AIMP2 was set to RED Added comment: Two apparently unrelated consanguineous families, however same homozygous variant identified in both. Affected individuals had early-onset multifocal seizures, spasticity, poor overall growth, and microcephaly (up to -10 SD). Brain imaging showed multiple abnormalities, including cerebral and cerebellar atrophy, thin corpus callosum, abnormal signals in the basal ganglia, and features suggesting hypo- or demyelination Sources: Expert list |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.624 | TRPM3 |
Zornitza Stark gene: TRPM3 was added gene: TRPM3 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: TRPM3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: TRPM3 were set to 31278393 Phenotypes for gene: TRPM3 were set to Intellectual disability; epilepsy Review for gene: TRPM3 was set to GREEN Added comment: 8 unrelated individuals with de novo variants in this gene. Recurrent variant p.(Val837Met) identified in 7/8. Sources: Literature |
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| 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 |
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| 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 |
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| Mendeliome v0.608 | NEUROD2 |
Zornitza Stark gene: NEUROD2 was added gene: NEUROD2 was added to Mendeliome_VCGS. Sources: Expert list Mode of inheritance for gene: NEUROD2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: NEUROD2 were set to 30323019 Phenotypes for gene: NEUROD2 were set to Epileptic encephalopathy, early infantile, 72, MIM# 618374 Review for gene: NEUROD2 was set to GREEN Added comment: Two unrelated individuals with de novo missense variants in this gene, animal model. Sources: Expert list |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.541 | NADSYN1 |
Zornitza Stark gene: NADSYN1 was added gene: NADSYN1 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: NADSYN1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NADSYN1 were set to 31883644 Phenotypes for gene: NADSYN1 were set to Multiple congenital abnormalities; absent kidneys; cardiac; limb; vertebral Review for gene: NADSYN1 was set to GREEN Added comment: Five individuals from four unrelated families. Sources: Literature |
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| Mendeliome v0.540 | PPP1R12A | Zornitza Stark Added comment: Comment when marking as ready: Now published, 12 individuals, upgraded to Green. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 |
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| Mendeliome v0.417 | NDUFAF8 |
Zornitza Stark gene: NDUFAF8 was added gene: NDUFAF8 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: NDUFAF8 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NDUFAF8 were set to 31866046 Phenotypes for gene: NDUFAF8 were set to Leigh syndrome Review for gene: NDUFAF8 was set to GREEN Added comment: Three unrelated individuals with bi-allelic variants in this gene; functional data. Beware recurrent deep intronic splicing variant. Sources: Literature |
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| Mendeliome v0.415 | EEF1B2 |
Zornitza Stark gene: EEF1B2 was added gene: EEF1B2 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: EEF1B2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: EEF1B2 were set to 31845318; 21937992 Phenotypes for gene: EEF1B2 were set to Intellectual disability Review for gene: EEF1B2 was set to AMBER Added comment: 5 individuals from two unrelated families described in the literature so far, no functional data but gene belongs to a family implicated in neurodevelopmental disorders. Sources: Literature |
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| 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 |
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| 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 |
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| Mendeliome v0.346 | SLC12A2 |
Zornitza Stark gene: SLC12A2 was added gene: SLC12A2 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: SLC12A2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SLC12A2 were set to 30740830 Phenotypes for gene: SLC12A2 were set to Kilquist syndrome; deafness; intellectual disability; dysmorphic features; absent salivation Review for gene: SLC12A2 was set to AMBER Added comment: Single individual with bi-alllelic deletion described; mouse model recapitulated the phenotype. Sources: Literature |
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| Mendeliome v0.338 | DEGS1 |
Zornitza Stark gene: DEGS1 was added gene: DEGS1 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: DEGS1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DEGS1 were set to 30620338; 30620337 Phenotypes for gene: DEGS1 were set to Leukodystrophy, hypomyelinating, 18, MIM#618404 Review for gene: DEGS1 was set to GREEN Added comment: 20 individuals from 14 unrelated families. Sources: Literature |
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| 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 |
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| Mendeliome v0.331 | VAMP2 |
Zornitza Stark gene: VAMP2 was added gene: VAMP2 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: VAMP2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: VAMP2 were set to 30929742 Phenotypes for gene: VAMP2 were set to Intellectual disability; Autism Review for gene: VAMP2 was set to GREEN Added comment: 5 unrelated patients with heterozygous de novo mutations in VAMP2, presenting with a neurodevelopmental disorder characterized by axial hypotonia, intellectual disability, and autistic features. Affected individuals carrying de novo non-synonymous variants involving the C-terminal region presented a more severe phenotype with additional neurological features, including central visual impairment, hyperkinetic movement disorder, and epilepsy or electroencephalography abnormalities. Reconstituted fusion involving a lipid-mixing assay indicated impairment in vesicle fusion as one of the possible associated disease mechanisms. Sources: Literature |
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| Mendeliome v0.313 | SCAMP5 |
Zornitza Stark gene: SCAMP5 was added gene: SCAMP5 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: SCAMP5 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SCAMP5 were set to 31439720 Phenotypes for gene: SCAMP5 were set to Intellectual disability; seizures; autism Mode of pathogenicity for gene: SCAMP5 was set to Other Review for gene: SCAMP5 was set to GREEN Added comment: 2 unrelated individuals with ASD, ID and seizures, with the same heterozygous de novo variant in SCAMP5 (p.Gly302Trp). Western blot analysis of proteins overexpressed in the Drosophila fat body showed strongly reduced levels of the SCAMP p.Gly302Trp protein compared with the wild-type protein, indicating that the mutant either reduced expression or increased turnover of the protein. The expression of the fly homologue of the human SCAMP5 p.Gly180Trp mutation caused similar eye and neuronal phenotypes as the expression of SCAMP RNAi, suggesting a dominant-negative effect. Sources: Literature |
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| Mendeliome v0.311 | PPP2CA |
Zornitza Stark gene: PPP2CA was added gene: PPP2CA was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: PPP2CA was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: PPP2CA were set to 30595372 Phenotypes for gene: PPP2CA were set to Neurodevelopmental disorder and language delay with or without structural brain abnormalities; OMIM #618354 Review for gene: PPP2CA was set to GREEN Added comment: 15 unrelated patients with a neurodevelopmental disorder with de novo heterozygous PPP2CA mutations, and 1 with partial deletion of PPP2CA. Functional studies showed complete PP2A dysfunction in 4 individuals with seemingly milder ID, hinting at haploinsufficiency. Ten other individuals showed mutation-specific biochemical distortions, including poor expression, altered binding to the A subunit and specific B-type subunits, and impaired phosphatase activity and C-terminal methylation. Sources: Literature |
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| 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 |
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| 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 v0.303 | 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 |
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| 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 |
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| Mendeliome v0.299 | PAK1 |
Zornitza Stark gene: PAK1 was added gene: PAK1 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: PAK1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: PAK1 were set to 31504246; 30290153 Phenotypes for gene: PAK1 were set to Intellectual developmental disorder with macrocephaly, seizures, and speech delay; OMIM #618158 Review for gene: PAK1 was set to GREEN Added comment: 2 unrelated individuals with de novo PAK1 mutations, with developmental delay, secondary macrocephaly, seizures, and ataxic gait. Enhanced phosphorylation of the PAK1 targets JNK and AKT shown in fibroblasts of one subject and of c-JUN in those of both subjects compared with control subjects. In fibroblasts of the 2 affected individuals, they observed a trend toward enhanced PAK1 kinase activity. By using co-immunoprecipitation and size-exclusion chromatography, they observed a significantly reduced dimerization for both PAK1 mutants compared with wild-type PAK1. 4 unrelated individuals with intellectual disability, macrocephaly and seizures, with de novo heterozygous missense variants in PAK1. Sources: Literature |
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| Mendeliome v0.287 | MACROD2 |
Zornitza Stark gene: MACROD2 was added gene: MACROD2 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: MACROD2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: MACROD2 were set to 31055587 Phenotypes for gene: MACROD2 were set to intellectual disability; dysmorphic features; microcephaly Review for gene: MACROD2 was set to RED Added comment: 1 family with a few affected with microcephaly, ID, dysmorphic features, and polydactyly. Deletion of chromosome 20p12.1 involving the MACROD2 gene was found in several members of the family. qRT-PCR showed higher levels of a MACROD2 mRNA isoform in the individuals carrying the deletion. Sources: Literature |
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| Mendeliome v0.285 | LSS |
Zornitza Stark gene: LSS was added gene: LSS was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: LSS was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: LSS were set to 30723320 Phenotypes for gene: LSS were set to Cataract 44, OMIM #616509; Hypotrichosis 14, OMIM #618275; Intellectual disability Review for gene: LSS was set to GREEN Added comment: Expanded the phenotypic spectrum of LSS to a recessive neuroectodermal syndrome formerly named alopecia with mental retardation (APMR) syndrome. Ten APMR individuals from 6 unrelated families with biallelic variants in LSS. Quantification of cholesterol and its precursors did not reveal noticeable imbalance. Sources: Literature |
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| Mendeliome v0.284 | LSM1 |
Zornitza Stark gene: LSM1 was added gene: LSM1 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: LSM1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: LSM1 were set to 31010896 Phenotypes for gene: LSM1 were set to intellectual disability; congenital abnormalities Review for gene: LSM1 was set to RED Added comment: 1 family with 2 siblings with global DD, multiple congenital anomalies, and abnormal eye movements, with homozygous splice variant in LSM1. Segregated with the phenotype in the family. Expression studies revealed absence of expression of the canonical isoform in the affected individuals. The Lsm1 knockout mice have a partially overlapping phenotype that affects the brain, heart, and eye. Sources: Literature |
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| Mendeliome v0.282 | LMAN2L |
Zornitza Stark gene: LMAN2L was added gene: LMAN2L was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: LMAN2L was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: LMAN2L were set to 31020005; 26566883 Phenotypes for gene: LMAN2L were set to Mental retardation, autosomal recessive, 52; OMIM #616887 Review for gene: LMAN2L was set to AMBER Added comment: 1 consanguineous family with 7 individuals with ID and epilepsy, with homozygous LMAN2L missense mutation. Segregated with disease in family, and unaffected family members were heterozygous variant carriers. No functional studies. 1 non-consanguineous family with 4 affected with heterozygous frameshift LMAN2L mutation. Segregates in family. Mutation eliminates LMAN2L's endoplasmic reticulum retention signal and mislocalizes the protein from that compartment to the plasma membrane. Sources: Literature |
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| Mendeliome v0.281 | KDM3B |
Zornitza Stark gene: KDM3B was added gene: KDM3B was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: KDM3B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: KDM3B were set to 30929739 Phenotypes for gene: KDM3B were set to Intellectual disability; dysmorphic features; short stature Review for gene: KDM3B was set to GREEN Added comment: 14 unrelated individuals and 3 affected parents with varying degrees of ID, DD, short stature, dysmorphism, and de novo or inherited pathogenic variants in KDM3B. No functional studies. Sources: Literature |
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| Mendeliome v0.271 | FRY |
Zornitza Stark gene: FRY was added gene: FRY was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: FRY was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: FRY were set to 31487712; 27457812; 21937992 Phenotypes for gene: FRY were set to Intellectual disability Review for gene: FRY was set to AMBER Added comment: 1 patient with ID/DD and a novel homozygous deletion involving FRY gene identified by genomic SNP microarray. No functional evidence. 2 consanguineous families with 6 affected individuals with ID, and homozygous mutations of FRY. No functional evidence. Sources: Literature |
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| Mendeliome v0.269 | FBXL3 |
Zornitza Stark gene: FBXL3 was added gene: FBXL3 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: FBXL3 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: FBXL3 were set to 30481285 Phenotypes for gene: FBXL3 were set to Intellectual developmental disorder with short stature, facial anomalies, and speech defects; OMIM #606220 Review for gene: FBXL3 was set to GREEN Added comment: Three unrelated families, multiple affected individuals. Sources: Literature |
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| Mendeliome v0.268 | ETS1 |
Zornitza Stark gene: ETS1 was added gene: ETS1 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: ETS1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ETS1 were set to 31160359 Phenotypes for gene: ETS1 were set to Intellectual disability Review for gene: ETS1 was set to RED Added comment: Single individual with de novo truncating variant in this gene; gene is Jacobsen syndrome critical region. Sources: Literature |
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| 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 |
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| 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 |
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| 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 |
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| Mendeliome v0.247 | CDK8 |
Zornitza Stark gene: CDK8 was added gene: CDK8 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: CDK8 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: CDK8 were set to 30905399 Phenotypes for gene: CDK8 were set to Intellectual disability; dysmorphism; congenital abnormalities; seizures Review for gene: CDK8 was set to GREEN Added comment: 12 unrelated individuals, missense variants demonstrated as de novo in 10. All variants localize to the ATP-binding pocket of the kinase domain. Sources: Literature |
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| Mendeliome v0.237 | SMARCC2 |
Zornitza Stark gene: SMARCC2 was added gene: SMARCC2 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: SMARCC2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SMARCC2 were set to 30580808 Phenotypes for gene: SMARCC2 were set to Coffin-Siris syndrome 8; OMIM #618362 Review for gene: SMARCC2 was set to GREEN Added comment: 15 individuals with variable degrees of neurodevelopmental delay, growth retardation, prominent speech impairment, hypotonia, feeding difficulties, behavioral abnormalities, and dysmorphic features. Sources: Literature |
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| Mendeliome v0.235 | SMARCD1 |
Zornitza Stark gene: SMARCD1 was added gene: SMARCD1 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: SMARCD1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SMARCD1 were set to 30879640 Phenotypes for gene: SMARCD1 were set to Intellectual disability; dysmorphic features Review for gene: SMARCD1 was set to GREEN Added comment: 5 individuals with heterozygous SMARCD1 variants (4 de novo, 1 unk), and developmental delay, intellectual disability, hypotonia, feeding difficulties, dysmorphisms, and small hands and feet. Sources: Literature |
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| Mendeliome v0.233 | BRSK2 |
Zornitza Stark gene: BRSK2 was added gene: BRSK2 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: BRSK2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: BRSK2 were set to 30879638 Phenotypes for gene: BRSK2 were set to Intellectual disability; autism Review for gene: BRSK2 was set to GREEN Added comment: Nine unrelated individuals with heterozygous variants in this gene; six confirmed de novo (parents available). Sources: Literature |
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| Mendeliome v0.229 | BCL11B |
Zornitza Stark gene: BCL11B was added gene: BCL11B was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: BCL11B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: BCL11B were set to 29985992 Phenotypes for gene: BCL11B were set to Intellectual developmental disorder with dysmorphic facies, speech delay, and T-cell abnormalities, MIM# 618092 Review for gene: BCL11B was set to GREEN Added comment: Nine unrelated individuals, all but one with de novo variants in this gene and syndromic ID/immunodeficiency. Most variants located in the last exon (exon 4) and are predicted to escape nonsense-mediated mRNA decay. Sources: Literature |
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| Mendeliome v0.224 | APC2 |
Zornitza Stark gene: APC2 was added gene: APC2 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: APC2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: APC2 were set to 31585108 Phenotypes for gene: APC2 were set to Cortical dysplasia, complex, with other brain malformations 10, MIM#618677 Review for gene: APC2 was set to GREEN Added comment: 12 individuals from 8 unrelated families; intellectual disability, seizures, cortical dysplasia including posterior to anterior predominant pattern of lissencephaly, heterotopias, paucity of white matter, thin corpus callosum. Sources: Literature |
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| 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 |
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| Mendeliome v0.219 | SELENOI | Zornitza Stark Phenotypes for gene: SELENOI were changed from to developmental delay; spasticity; periventricular white mater abnormalities; peripheral neuropathy; seizures; bifid uvula in some affected individuals; microcephaly | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.216 | SELENOI | Zornitza Stark reviewed gene: SELENOI: Rating: AMBER; Mode of pathogenicity: None; Publications: 28052917; Phenotypes: developmental delay, spasticity, periventricular white mater abnormalities, peripheral neuropathy, seizures, bifid uvula in some affected individuals, microcephaly; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.206 | OXR1 |
Zornitza Stark gene: OXR1 was added gene: OXR1 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: OXR1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: OXR1 were set to 31785787 Phenotypes for gene: OXR1 were set to Intellectual disability; seizures; cerebellar atrophy Review for gene: OXR1 was set to GREEN Added comment: Five individuals from three families. Sources: Literature |
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| 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 |
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| 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 |
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| Mendeliome v0.140 | ERMARD | Zornitza Stark Added comment: Comment when marking as ready: Single affected individual described in heterozygous missense in this gene; rest of evidence is based on cytogenetic data. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.0 | IDUA |
Zornitza Stark gene: IDUA was added gene: IDUA was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services Mode of inheritance for gene: IDUA was set to Unknown |
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