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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 v1.1566 | 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 v1.1401 | PLA2G16 |
Lauren Rogers changed review comment from: 7 patients from 4 unrelated consanguineous families with homozygous loss of function PTC variants. Features: 4/7 metabolic features, 6/7 neurological/skeletal features, 3/7 Psychomotor retardation/intellectual disability, 5/7 demyelinating peripheral neuropathy. Null mouse and patient derived white adipose tissue showed enrichment of arachidonic acid-containing membrane phospholipids and a strong decrease in PPARγ. CRISPR–Cas9-mediated PLAAT3 inactivation in human adipose stem cells induced insulin resistance, altered adipocyte diferentiation with decreased lipid droplet formation and reduced the expression of adipogenic and mature adipocyte markers, including PPARγ. Sources: Literature; to: 7 patients from 4 unrelated consanguineous families with homozygous loss of function PTC variants. Features: 4/7 metabolic features, 6/7 neurological/skeletal features, 3/7 Psychomotor retardation/intellectual disability, 5/7 demyelinating peripheral neuropathy. Null mouse and patient derived white adipose tissue showed enrichment of arachidonic acid-containing membrane phospholipids and a strong decrease in PPARγ. CRISPR–Cas9-mediated PLAAT3 inactivation in human adipose stem cells induced insulin resistance, altered adipocyte differentiation with decreased lipid droplet formation and reduced the expression of adipogenic and mature adipocyte markers, including PPARγ. Sources: Literature |
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| Mendeliome v1.1401 | PLA2G16 |
Lauren Rogers gene: PLA2G16 was added gene: PLA2G16 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PLA2G16 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: PLA2G16 were set to PMID: 37919452 Phenotypes for gene: PLA2G16 were set to Lipodystrophy (MONDO:0006573) Review for gene: PLA2G16 was set to GREEN Added comment: 7 patients from 4 unrelated consanguineous families with homozygous loss of function PTC variants. Features: 4/7 metabolic features, 6/7 neurological/skeletal features, 3/7 Psychomotor retardation/intellectual disability, 5/7 demyelinating peripheral neuropathy. Null mouse and patient derived white adipose tissue showed enrichment of arachidonic acid-containing membrane phospholipids and a strong decrease in PPARγ. CRISPR–Cas9-mediated PLAAT3 inactivation in human adipose stem cells induced insulin resistance, altered adipocyte diferentiation with decreased lipid droplet formation and reduced the expression of adipogenic and mature adipocyte markers, including PPARγ. Sources: Literature |
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| Mendeliome v1.1381 | KDR |
Zornitza Stark edited their review of gene: KDR: Added comment: PMID 34113005: Exome sequencing in a family with two siblings affected by ToF revealed biallelic missense variants in KDR. Studies in knock-in mice and in HEK 293T cells identified embryonic lethality for one variant when occurring in the homozygous state, and a significantly reduced VEGFR2 phosphorylation for both variants. Rare variant burden analysis conducted in a set of 1,569 patients of European descent with ToF identified a 46-fold enrichment of protein-truncating variants (PTVs) in TOF cases compared to controls (P = 7 × 10-11). At this stage MOI unclear and insufficient evidence for either MOI.; Changed publications: 31980491, 29650961, 18931684, 34113005; Changed phenotypes: Pulmonary hypertension, Haemangioma, capillary infantile, somatic 602089, Tetralogy of Fallot, MONDO:0008542; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal |
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| Mendeliome v1.715 | SRPRA |
Zornitza Stark gene: SRPRA was added gene: SRPRA was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SRPRA was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SRPRA were set to 36223592 Phenotypes for gene: SRPRA were set to Schwachman-Diamond syndrome MONDO:0009833, SRPA-related Review for gene: SRPRA was set to AMBER Added comment: De novo variant; zebrafish model. Schwachman-Diamond like. 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 v1.318 | 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 v1.264 | COL9A3 | Zornitza Stark Phenotypes for gene: COL9A3 were changed from Epiphyseal dysplasia, multiple, 3, with or without myopathy, MIM# 600969; Stickler syndrome AR; Deafness AD; Peripheral vitreoretinal degeneration and retinal detachment, AD to Epiphyseal dysplasia, multiple, 3, with or without myopathy, MIM# 600969; Stickler syndrome, type VI, MIM# 620022; Deafness AD; Peripheral vitreoretinal degeneration and retinal detachment, AD | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.134 | PIK3C2B |
Krithika Murali gene: PIK3C2B was added gene: PIK3C2B was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PIK3C2B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: PIK3C2B were set to PMID:35786744 Phenotypes for gene: PIK3C2B were set to familial partial epilepsy - MONDO#0017704 Review for gene: PIK3C2B was set to AMBER Added comment: No OMIM gene disease association. Gozzelino et al.(2022) Brain - report enrichment of ultra-rare PIK3C2B variants in focal epilepsy cohorts, including one variant shown to be de novo (G1294Q). Segregation data not provided for all cases. The p.G1345S variant was inherited from an affected father. The p.K584* variant was inherited from an unaffected father suggesting incomplete penetrance. Functional studies supported a LoF mechanism and mouse model studies suggestive of mTORC1 pathway hyperactivation. Sources: Literature |
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| Mendeliome v1.130 | CHMP3 | Zornitza Stark Marked gene: CHMP3 as ready | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.130 | CHMP3 | Zornitza Stark Gene: chmp3 has been classified as Amber List (Moderate Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.130 | CHMP3 | Zornitza Stark Classified gene: CHMP3 as Amber List (moderate evidence) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.130 | CHMP3 | Zornitza Stark Gene: chmp3 has been classified as Amber List (Moderate Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 v1.34 | TRIM47 |
Zornitza Stark gene: TRIM47 was added gene: TRIM47 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: TRIM47 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: TRIM47 were set to 35511193 Phenotypes for gene: TRIM47 were set to Genetic cerebral small vessel disease MONDO:0018787 Review for gene: TRIM47 was set to RED Added comment: GWAS data: Combined evidence from summary-based Mendelian randomization studies and profiling of human loss-of-function allele carriers showed an inverse relation between TRIM47 expression in the brain and blood vessels and extensive small vessel disease severity. Observed significant enrichment of Trim47 in isolated brain vessel preparations compared to total brain fraction in mice, in line with the literature showing Trim47 enrichment in brain endothelial cells at single cell level. Functional evaluation of TRIM47 by small interfering RNAs-mediated knockdown in human brain endothelial cells showed increased endothelial permeability, an important hallmark of cerebral small vessel disease pathology. Sources: Literature |
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| Mendeliome v0.13301 | CHMP4B | Ain Roesley Marked gene: CHMP4B as ready | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13301 | CHMP4B | Ain Roesley Gene: chmp4b has been classified as Green List (High Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13301 | CHMP4B | Ain Roesley Phenotypes for gene: CHMP4B were changed from to Cataract 31, multiple types MIM#605387 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13300 | CHMP4B | Ain Roesley Publications for gene: CHMP4B were set to | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13300 | CHMP4B | Ain Roesley Mode of inheritance for gene: CHMP4B was changed from Unknown to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13299 | CHMP4B | Ain Roesley reviewed gene: CHMP4B: Rating: GREEN; Mode of pathogenicity: None; Publications: 34722561, 17701905, 10682967, 30078984; Phenotypes: Cataract 31, multiple types MIM#605387; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13299 | CHM | Ain Roesley Marked gene: CHM as ready | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13299 | CHM | Ain Roesley Gene: chm has been classified as Green List (High Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13299 | CHM | Ain Roesley Publications for gene: CHM were set to | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13299 | CHM | Ain Roesley Phenotypes for gene: CHM were changed from to Choroideremia MIM#303100 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13299 | CHM | Ain Roesley Mode of inheritance for gene: CHM was changed from Unknown to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.13298 | CHM | Ain Roesley reviewed gene: CHM: Rating: GREEN; Mode of pathogenicity: None; Publications: 20301511; Phenotypes: Choroideremia MIM#303100; Mode of inheritance: X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males); Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12859 | SGCD |
Samantha Ayres edited their review of gene: SGCD: Added comment: Variants identified in multiple cases of cardiomyopathy, however most are too common in the general population to explain the disease. First described in the literature with potential association to cardiomyopathy in 2000 (Tsubata et al 10974018). Case-control study by Mazzarotto et al 2020, did not identify enrichment of SGCD in DCM cohort. Animal models demonstrate mild cardiomyopathy phenotype. Curated as 'limited' gene-disease association by ClinGen; Changed rating: RED; Changed publications: 10974018, 31983221, 23695275; Changed phenotypes: Cardiomyopathy, dilated, 1L, MIM#606685, dilated cardiomyopathy MONDO:0005021; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted |
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| Mendeliome v0.12610 | SPG7 |
Zornitza Stark changed review comment from: SPG7 mutations most often lead to spastic paraparesis (HSP) and/or hereditary cerebellar ataxia (HCA), frequently with mixed phenotypes. Well established for bi-allelic variants. Enrichment of mono-allelic variants reported in a couple of cohorts, although a recent one suggests digenic inheritance.; to: SPG7 mutations most often lead to spastic paraparesis (HSP) and/or hereditary cerebellar ataxia (HCA), frequently with mixed phenotypes. Well established for bi-allelic variants. Enrichment of mono-allelic variants reported in a couple of cohorts, although a recent one suggests digenic inheritance. Association with OA: 7 families reported for AD OA, including 5 missense and 2 frameshift variants, PMID 32548275 |
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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 v0.8834 | RNF220 |
Zornitza Stark gene: RNF220 was added gene: RNF220 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RNF220 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: RNF220 were set to 33964137; 10881263 Phenotypes for gene: RNF220 were set to Leukodystrophy; CNS hypomyelination; Ataxia; Intellectual disability; Sensorineural hearing impairment; Elevated hepatic transaminases; Hepatic fibrosis; Dilated cardiomyopathy; Spastic paraplegia; Dysarthria; Abnormality of the corpus callosum Review for gene: RNF220 was set to GREEN Added comment: Sferra et al (2021 - PMID: 33964137) provide extensive evidence that biallelic RNF220 mutations cause a disorder characterized by hypomyelinating leukodystrophy, ataxia (9/9 - onset 1-5y), borderline intellectual functioning (3/9) / intellectual disability (5/9 - in most cases mild), sensorineural deafness (9/9) with complete hearing loss in the first decade of life, hepatopathy (9/9) with associated periportal fibrosis, and dilated cardiomyopathy (9/9) which was fatal. Other neurologic manifestations apart from ataxia incl. hyperreflexia (8/8), spastic paraplegia (9/9), dysarthria (9/9), peripheral neuropathy (4/9), seizures in one case (1/9). Upon brain MRI there was thin corpus callosum (9/9) or cerebellar atrophy in some (2/9). The authors identified homozygosity for 2 recurrent missense RNF220 variants in affected members belonging to these 5 broad consanguineous pedigrees (7 families), namely NM_018150.4:c.1094G>A / p.Arg365Gly in 4 Roma families in the context of a shared haplotype (/founder effect) as well as c.1088G>A / p.Arg363Gly in a large pedigree from southern Italy initially reported by Leuzzi et al (2000 - PMID: 10881263). Extensive segregation analyses were carried out including several affected and unaffected members. RNF220 encodes ring finger protein 220, which functions as an E3 ubiquitin ligase. Previous studies have shown among others a role in modulation of Sonic hedgehog/GLI signaling and cerebellar development Evidence for the role of RNF220 included relevant expression, localization within the cell, interaction partners (lamin B1, 20S proteasome), similarities with other laminopathies in terms of phenotype, etc : *RNF220 has a relevant expression pattern in CNS (based on qRT-PCR analyses in human brain, cerebellum, cerebral cortex / mRNA levels in human fetal CNS with higher expression in cerebellum, spinal cord and cortex / previous GTEx data / protein levels in mouse CNS) *The protein displays nuclear localization based on iPSC cells differentiated to motor neurons (also supported by data from the Human Protein Atlas). Transfection of COS-1 cells demonstrated localization primarily to the nucleus (as also previously demonstrated in HEK293T cells) in vesicle like structures with ASF2/SF2 colocalization suggesting enrichment in nuclear speckles. There was also partial co-distribution with the 20S proteasome. R363Q and R365Q additionally coalesced in the cytoplasm forming protein aggregates/inclusions. *Immunofluorescence studies in patient fibroblasts also confirmed abnormal increase of the protein in the cytoplasm and increased fluorescence with the 20S proteasome. *Proteomic identification of RNF220-interacting proteins in transfected HEK293T cells demonstrated enrichment for all members of the lamin protein family (incl . lamin B1, AC, B2). *RNAi-mediated downregulation of RNF222 in Drosophila suggested altered subcellular localization and accumulation of the fly orthologue for human lamin B1. *Immunoprecipitation of lamin B1 from the nuclear matrix of cerebellar cells suggested significant interaction of endogenous lamin B1 with RNF220, while transfection studies in HEK293T cells for wt/mt suggested reduced binding to endogenous lamin B1 for RNF220 mt compared to wt (more prominent for R365Q). RNF220 mutants also reduced ubiquitination of nuclear lamin B1 compared to wt. *Patient fibroblasts immunostained with different nuclear envelope markers displayed abnormal nuclear shapes with multiple invaginations and lobulations, findings also observed in laminopathies. Sources: Literature |
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| Mendeliome v0.8214 | SBDS | Zornitza Stark Phenotypes for gene: SBDS were changed from to Shwachman-Diamond syndrome, MIM# 260400 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8212 | SBDS | Zornitza Stark reviewed gene: SBDS: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Shwachman-Diamond syndrome, MIM# 260400; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8165 | RNU12 |
Bryony Thompson gene: RNU12 was added gene: RNU12 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RNU12 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: RNU12 were set to 34085356; 27863452 Phenotypes for gene: RNU12 were set to CDAGS syndrome MIM#603116; Craniosynostosis, Delayed closure of the fontanelles, cranial defects, clavicular hypoplasia, Anal and Genitourinary malformations, and Skin manifestations Review for gene: RNU12 was set to GREEN Added comment: 5 CDAGS syndrome families with biallelic variants all including NC_000022.10:g.43011402C>T and another variant on the second allele. Whole transcriptome sequencing analysis of patient lymphoblastoid cells identified differentially expressed genes, and differential alternative splicing analysis indicated there was an enrichment of alternative splicing events. Also, limited evidence for an association with cerebellar ataxia with a single large consanguineous family reported with a homozygous variant. Sources: Literature |
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| Mendeliome v0.8029 | EFL1 | Zornitza Stark Phenotypes for gene: EFL1 were changed from to Shwachman-Diamond syndrome 2, MIM# 617941 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8026 | EFL1 | Zornitza Stark reviewed gene: EFL1: Rating: GREEN; Mode of pathogenicity: None; Publications: 28331068, 31151987; Phenotypes: Shwachman-Diamond syndrome 2, MIM# 617941; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7926 | COL9A3 | Zornitza Stark Phenotypes for gene: COL9A3 were changed from Epiphyseal dysplasia, multiple, 3, with or without myopathy, MIM# 600969; Stickler syndrome; Deafness to Epiphyseal dysplasia, multiple, 3, with or without myopathy, MIM# 600969; Stickler syndrome AR; Deafness AD; Peripheral vitreoretinal degeneration and retinal detachment, AD | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7891 | COL9A3 | Kristin Rigbye reviewed gene: COL9A3: Rating: GREEN; Mode of pathogenicity: None; Publications: 33633367; Phenotypes: Epiphyseal dysplasia, multiple, 3, with or without myopathy, AD, MIM# 600969, Stickler syndrome, AR, Deafness, AD, Peripheral vitreoretinal degeneration and retinal detachment, AD; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6365 | CHMP1A | Zornitza Stark Marked gene: CHMP1A as ready | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6365 | CHMP1A | Zornitza Stark Gene: chmp1a has been classified as Green List (High Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6365 | CHMP1A | Zornitza Stark Phenotypes for gene: CHMP1A were changed from to Pontocerebellar hypoplasia, type 8, MIM# 614961 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6364 | CHMP1A | Zornitza Stark Publications for gene: CHMP1A were set to | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6363 | CHMP1A | Zornitza Stark Mode of inheritance for gene: CHMP1A was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6362 | CHMP1A | Zornitza Stark reviewed gene: CHMP1A: Rating: GREEN; Mode of pathogenicity: None; Publications: 23023333; Phenotypes: Pontocerebellar hypoplasia, type 8, MIM# 614961; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5315 | ZFHX4 |
Bryony Thompson changed review comment from: PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio study from the Deciphering Developmental Disorders study. 16 de novo variants (5 frameshift, 5 missense, 4 stopgain, 2 synonymous) identified in ~10,000 cases with developmental disorders (no other phenotype info provided). Sources: Literature; to: PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio study from the Deciphering Developmental Disorders study. 16 de novo variants (5 frameshift, 5 missense, 4 stopgain, 2 synonymous) identified in ~10,000 cases with developmental disorders (no other phenotype info provided). PMID: 24038936 - a single case with developmental delay, macrocephaly, ventriculomegaly, hypermetropia, recurrent infections, dysmorphism and a de novo deletion of the last 7 exons of the gene. Sources: Literature |
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| Mendeliome v0.5315 | ZFHX4 |
Bryony Thompson gene: ZFHX4 was added gene: ZFHX4 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ZFHX4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ZFHX4 were set to 33057194 Phenotypes for gene: ZFHX4 were set to Developmental disorders Added comment: PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio study from the Deciphering Developmental Disorders study. 16 de novo variants (5 frameshift, 5 missense, 4 stopgain, 2 synonymous) identified in ~10,000 cases with developmental disorders (no other phenotype info provided). Sources: Literature |
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| Mendeliome v0.5313 | UPF1 |
Bryony Thompson gene: UPF1 was added gene: UPF1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: UPF1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: UPF1 were set to 33057194 Phenotypes for gene: UPF1 were set to Developmental disorders Review for gene: UPF1 was set to AMBER Added comment: PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio study from the Deciphering Developmental Disorders study. 16 de novo variants (1 frameshift, 11 missense, 4 synonymous) identified in ~10,000 cases with developmental disorders (no other phenotype info provided). Sources: Literature |
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| Mendeliome v0.5311 | U2AF2 |
Bryony Thompson gene: U2AF2 was added gene: U2AF2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: U2AF2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: U2AF2 were set to 33057194 Phenotypes for gene: U2AF2 were set to Developmental disorders Review for gene: U2AF2 was set to AMBER Added comment: PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio study from the Deciphering Developmental Disorders study. 10 de novo variants (1 in-frame, 8 missense, 1 synoymous) identified in ~10,000 cases with developmental disorders (no other phenotype info provided). Sources: Literature |
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| Mendeliome v0.5304 | SRRM2 |
Bryony Thompson gene: SRRM2 was added gene: SRRM2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SRRM2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SRRM2 were set to 33057194 Phenotypes for gene: SRRM2 were set to Developmental disorders Review for gene: SRRM2 was set to AMBER Added comment: PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio study from the Deciphering Developmental Disorders study. 28 de novo variants (11 frameshift, 7 missense, 1 splice acceptor, 5 stopgain, 4 synonymous) identified in ~10,000 cases with developmental disorders (no other phenotype info provided). Sources: Literature |
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| Mendeliome v0.5302 | SPEN |
Bryony Thompson gene: SPEN was added gene: SPEN was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SPEN was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SPEN were set to 33057194 Phenotypes for gene: SPEN were set to Developmental disorders Review for gene: SPEN was set to AMBER Added comment: PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio study from the Deciphering Developmental Disorders study. 25 de novo variants (6 frameshift, 1 in-frame, 7 missense, 8 stopgain, 3 synonymous) identified in ~10,000 cases with developmental disorders (no other phenotype info provided). Sources: Literature |
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| Mendeliome v0.5300 | SATB1 |
Bryony Thompson gene: SATB1 was added gene: SATB1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SATB1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SATB1 were set to 33057194 Phenotypes for gene: SATB1 were set to Developmental disorders Review for gene: SATB1 was set to AMBER Added comment: PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio study from the Deciphering Developmental Disorders study. 12 de novo (2 frameshift, 7 missense, 1 stopgain, 2 synonymous) identified in ~10,000 cases with developmental disorders (no other phenotype info provided). Sources: Literature |
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| Mendeliome v0.5298 | RAB14 |
Bryony Thompson gene: RAB14 was added gene: RAB14 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RAB14 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: RAB14 were set to 33057194 Phenotypes for gene: RAB14 were set to Developmental disorders Review for gene: RAB14 was set to AMBER Added comment: PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio study from the Deciphering Developmental Disorders study. 8 de novo variants (1 in-frame, 7 missense) identified in ~10,000 cases with developmental disorders (no other phenotype info provided). Sources: Literature |
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| Mendeliome v0.5296 | PSMC5 |
Bryony Thompson gene: PSMC5 was added gene: PSMC5 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PSMC5 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: PSMC5 were set to 33057194 Phenotypes for gene: PSMC5 were set to Developmental disorders Review for gene: PSMC5 was set to AMBER Added comment: PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio study from the Deciphering Developmental Disorders study. 10 de novo variants (1 in-frame, 9 missense) identified in ~10,000 cases with developmental disorders (no other phenotype info provided). Sources: Literature |
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| Mendeliome v0.5295 | PRPF8 |
Bryony Thompson Added comment: Comment on phenotypes: Established Retinitis pigmentosa gene. PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio study from the Deciphering Developmental Disorders study. 29 de novo variants (2 frameshift, 19 missense, 1 stopgain, 7 synonymous) identified in ~10,000 cases with developmental disorders (no other phenotype info provided). |
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| Mendeliome v0.5290 | MSL2 |
Bryony Thompson gene: MSL2 was added gene: MSL2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MSL2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: MSL2 were set to 31332282; 33057194 Phenotypes for gene: MSL2 were set to Developmental disorders; autism Review for gene: MSL2 was set to AMBER Added comment: PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio study from the Deciphering Developmental Disorders study. 13 de novo variants (9 frameshift, 4 missense) identified in ~10,000 cases with developmental disorders (no other phenotype info provided). PMID: 31332282 - candidate gene in a single autism study, with recurrent de novo variants in a potential oligogenic model Sources: Literature |
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| Mendeliome v0.5288 | MMGT1 |
Bryony Thompson gene: MMGT1 was added gene: MMGT1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MMGT1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: MMGT1 were set to 33057194 Phenotypes for gene: MMGT1 were set to Developmental disorders Review for gene: MMGT1 was set to AMBER Added comment: PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio study from the Deciphering Developmental Disorders study. 3 de novo missense identified in ~10,000 cases with developmental disorders (no other phenotype info provided). Sources: Literature |
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| Mendeliome v0.5286 | MIB1 |
Bryony Thompson Added comment: Comment on phenotypes: Established congenital cardiac disease gene. PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio study from the Deciphering Developmental Disorders study. 11 de novo variants (1 frameshift, 2 missense, 2 splice acceptor, 1 splice donor, 5 stopgain) identified in ~10,000 cases with developmental disorders (no other phenotype info provided). |
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| Mendeliome v0.5284 | MFN2 |
Bryony Thompson Added comment: Comment on phenotypes: Established cause of hereditary neuropathy. PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio study from the Deciphering Developmental Disorders study. 9 de novo variants (8 missense, 1 synonymous) identified in ~10,000 cases with developmental disorders (no other phenotype info provided). |
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| Mendeliome v0.5282 | KCNK3 |
Bryony Thompson Added comment: Comment on phenotypes: Established pulmonary hypertension gene. PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio study from the Deciphering Developmental Disorders study. 8 de novo variants (7 missense, 1 synonymous) identified in ~10,000 cases with developmental disorders (no other phenotype info provided). |
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| Mendeliome v0.5279 | HNRNPD |
Bryony Thompson gene: HNRNPD was added gene: HNRNPD was added to Mendeliome. Sources: Literature Mode of inheritance for gene: HNRNPD was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: HNRNPD were set to 33057194 Phenotypes for gene: HNRNPD were set to Developmental disorders Review for gene: HNRNPD was set to AMBER Added comment: PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio study from the Deciphering Developmental Disorders study. 8 de novo variants (5 frameshift, 1 missense, 1 splice acceptor, 1 synonymous) identified in ~10,000 cases with developmental disorders (no other phenotype info provided). Sources: Literature |
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| Mendeliome v0.5234 | GIGYF1 |
Bryony Thompson gene: GIGYF1 was added gene: GIGYF1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: GIGYF1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: GIGYF1 were set to 33057194 Phenotypes for gene: GIGYF1 were set to Developmental disorder Review for gene: GIGYF1 was set to AMBER Added comment: PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio study from the Deciphering Developmental Disorders study. 14 de novo variants (4 frameshift, 5 missense, 1 splice donor, 3 stopgain, 1 synonymous) identified in ~10,000 cases with developmental disorders (no other phenotype info provided). Sources: Literature |
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| Mendeliome v0.5232 | FBXW7 |
Bryony Thompson gene: FBXW7 was added gene: FBXW7 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: FBXW7 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: FBXW7 were set to 33057194 Phenotypes for gene: FBXW7 were set to Developmental disorder Review for gene: FBXW7 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. 12 de novo missense and 1 de novo synonymous variant identified in ~10,000 cases with developmental disorders (no other phenotype info provided) 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 v0.5212 | DDX23 |
Bryony Thompson gene: DDX23 was added gene: DDX23 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: DDX23 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: DDX23 were set to 33057194 Phenotypes for gene: DDX23 were set to Developmental disorder Review for gene: DDX23 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. 6 de novo missense identified in ~10,000 cases with developmental disorders (no other phenotype info provided) Sources: Literature |
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| 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 v0.5208 | ARHGAP35 |
Bryony Thompson gene: ARHGAP35 was added gene: ARHGAP35 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ARHGAP35 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ARHGAP35 were set to 33057194 Phenotypes for gene: ARHGAP35 were set to Developmental disorder Review for gene: ARHGAP35 was set to AMBER Added comment: Has been identified as a gene with significant de novo enrichment in a large trio developmental disorder study. 16 de novo variants (3 frameshift, 2 in-frame, 10 missense, 1 stopgain) identified in ~10,000 cases with developmental disorders (no other phenotype info provided). Sources: Literature |
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| Mendeliome v0.5207 | AP2S1 |
Bryony Thompson Added comment: Comment on phenotypes: Established hypercalcaemia gene. PMID: 33057194 - Has been identified as a gene with significant de novo enrichment in a large trio developmental disorder study. 5 de novo missense identified in ~10,000 cases with developmental disorders (no other phenotype info provided) |
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| 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 v0.3732 | 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 v0.3643 | 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 v0.2795 | COL10A1 | Zornitza Stark Phenotypes for gene: COL10A1 were changed from to Metaphyseal chondrodysplasia, Schmid type, MIM#156500 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2792 | COL10A1 | Zornitza Stark reviewed gene: COL10A1: Rating: GREEN; Mode of pathogenicity: None; Publications: 15880705, 31633898; Phenotypes: Metaphyseal chondrodysplasia, Schmid type, MIM#156500; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 v0.2463 | ATOH7 | Zornitza Stark Phenotypes for gene: ATOH7 were changed from to Persistent hyperplastic primary vitreous, autosomal recessive, MIM# 221900; microphthalmia; cataract; glaucoma; congenital retinal nonattachment | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2392 | ATOH7 | Paul De Fazio reviewed gene: ATOH7: Rating: GREEN; Mode of pathogenicity: None; Publications: 22068589, 22645276, 31696227, 11493566, 11493566; Phenotypes: microphthalmia, cataract, glaucoma, congenital retinal nonattachment; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.0 | CHMP4B |
Zornitza Stark gene: CHMP4B was added gene: CHMP4B was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services Mode of inheritance for gene: CHMP4B was set to Unknown |
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| Mendeliome v0.0 | CHMP1A |
Zornitza Stark gene: CHMP1A was added gene: CHMP1A was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services Mode of inheritance for gene: CHMP1A was set to Unknown |
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| Mendeliome v0.0 | CHM |
Zornitza Stark gene: CHM was added gene: CHM was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services Mode of inheritance for gene: CHM was set to Unknown |
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