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| Intellectual disability - microarray and sequencing v5.523 | FRYL | Arina Puzriakova Classified gene: FRYL as Amber List (moderate evidence) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Intellectual disability - microarray and sequencing v5.523 | FRYL | Arina Puzriakova Added comment: Comment on list classification: Rating Amber as overall the evidence is borderline. Only one recent study (PMID:38479391) has reported an disease association for FRYL, with variable phenotypes and results from functional studies, as well as variants in other genes in several cases. Additional studies are required to conclusively corroborate causality (added watchlist tag). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Intellectual disability - microarray and sequencing v5.523 | FRYL | Arina Puzriakova Gene: fryl has been classified as Amber List (Moderate Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Intellectual disability - microarray and sequencing v5.522 | FRYL |
Arina Puzriakova gene: FRYL was added gene: FRYL was added to Intellectual disability - microarray and sequencing. Sources: Literature watchlist tags were added to gene: FRYL. 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 Review for gene: FRYL was set to AMBER Added comment: New association linking this gene to disease which is not yet listed in OMIM or Gene2Phenotype. There are no sequence variants in Decipher and ClinVar shows only a single pathogenic frameshift variant (c.1224del, p.Lys409fs) for FRYL-associated neurodevelopmental disorder, amongst multiple SNVs which are mostly missense VUS or B/LB. Pan et al., 2024 (PMID: 38479391) reported 14 individuals with heterozygous variant in FRYL who presented with DD/ID, dysmorphic features, and other congenital anomalies in multiple systems. Except for DD/ID which was the only universal feature, observed phenotypes were variable and nonspecific. Variants were confirmed de novo in all except one individual (duo testing excluded paternal inheritance although it was present at low frequency in gnomAD). Variant types include missense (5), fs/stop-gain (8) and canonical splice (1). Modelling 4/5 patient missense variants using flies showed that only one serves as a severe LoF variant, two others behave as partial LoF variants, and one variant had no functional impact (only variant not confirmed as de novo indicating this is a VUS). Four individuals also had P/LP variants in other genes (SF3B4, DHCR7, SLC6A19, SDHA) which could at least partially explain their phenotypes, and a further four harboured additional VUSs. Sources: Literature |
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| Intellectual disability - microarray and sequencing v3.298 | FRY | Arina Puzriakova Publications for gene: FRY were set to 21937992 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Intellectual disability - microarray and sequencing v3.297 | FRY | Arina Puzriakova Classified gene: FRY as Amber List (moderate evidence) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Intellectual disability - microarray and sequencing v3.297 | FRY | Arina Puzriakova Gene: fry has been classified as Amber List (Moderate Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Intellectual disability - microarray and sequencing v3.0 | FRY | Zornitza Stark reviewed gene: FRY: Rating: AMBER; Mode of pathogenicity: None; Publications: 31487712, 27457812, 21937992; Phenotypes: Intellectual disability; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Intellectual disability - microarray and sequencing v2.588 | ZNF462 |
Konstantinos Varvagiannis gene: ZNF462 was added gene: ZNF462 was added to Intellectual disability. Sources: Literature,Radboud University Medical Center, Nijmegen Mode of inheritance for gene: ZNF462 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: ZNF462 were set to 28513610; 29427787; 14564155; 12825074 Phenotypes for gene: ZNF462 were set to Ptosis; Prominent metopic ridge; Craniosynostosis; Global developmental delay; Intellectual disability; Autistic behavior Penetrance for gene: ZNF462 were set to unknown Review for gene: ZNF462 was set to AMBER gene: ZNF462 was marked as current diagnostic Added comment: Weiss et al. (PMID: 28513610) report on 8 individuals (from 6 unrelated families) with heterozygous pathogenic variants affecting ZNF462. Frequent features included ptosis metopic ridging, craniosynostosis, dysgenesis of corpus callosum. DD (with or without ASD) was a feature in 4 (4/8), one of whom was reported to present mild ID. 4 LoF mutations as well as 2 9q31.2 deletions spanning also other genes are reported [NM_021224.4]: Fam. 1 - c.3787C>T p.(Arg1263*) (familial) - Normal development in all 3 family members Fam. 2 - c.2979_2980delinsA p.(Val994Trpfs*147) (de novo) - DD Fam. 3 - c.4263delA p.(Glu1422Serfs*6) (de novo) - DD Fam. 4 - Chr9:g.(108940763-110561397)del (hg19) (de novo) - Normal development Fam. 5- Chr9:g(108464368-110362345)del (hg19) (de novo) - DD with mild ID Fam. 6 - c.5145delC p.(Tyr1716Thrfs*28) (de novo) - DD There were no expression/functional studies performed although haploinsufficiency can be presumed based on these variants (ZNF462 has a pLI of 1 in ExAC). ----------- Cosemans et al. (PMID: 29427787) report on an individual investigated - among others - for mild ID and ASD. This individual harbored a de novo (complex) translocation disrupting ZNF462 and KLF12. As this subject presented similar features to those reported by Weiss et al. (eg. craniofacial anomalies, abn. development, ASD) and given that KLF12 is not associated with any disorder, the phenotype of this individual was thought to be secondary to disruption of ZNF462. Details on this patient - before delineation of the translocation breakpoints - were provided previously by Fryns and Hendrickx ( PMID:9297446). ----------- Cited by the previous article, a further case of ZNF462 disruption due to translocation was previously published in the literature (same individual - Talisetti et al. PMID: 14564155 / Ramocki et al. PMID: 12825074). Profound ID was among the features of this individual although the translocation disrupted also a further ID gene (ASXL2). ----------- In ClinVar 8 variants have been submitted as pathogenic/likely pathogenic although a phenotype is provided only for 3 variants published by Weiss et al.(submitting lab participating in PMID: 28513610 / SCV000494060.1 corresp. to Fam.1 / SCV000494061.1 - Fam.2 / SCV000494062.1 - Fam. 3). ----------- Several individuals with de novo coding variants in ZNF462 have been reported in the context of larger cohorts (some with ID as a principal feature). http://denovo-db.gs.washington.edu/denovo-db/QueryVariantServlet?searchBy=Gene&target=ZNF462 ----------- In Decipher apart from the DDD study participants DDD4K.03663 and DDD4K.03792 (appearing in the denovo-db) with LoF and abnormality of the nervous system, several further individuals have been submitted. 2 of these subjects, harbored a de novo LoF (submitted as pathogenic) and had ID as a feature. ---------- ZNF462 is included in the DD panel of G2P, associated with Craniofacial anomalies, corpus callosum dysgenesis, ptosis, and developmental delay [Disease confidence: probable / Global DD (but not ID) among the phenotypes assigned to this entry]. This gene is not associated with any phenotype in OMIM. ---------- ZNF462 is included in gene panels for ID offered by diagnostic laboratories (incl. Radboudumc). ---------- As a result this gene can be considered for inclusion in the ID panel probably as amber (or green if the current evidence is thought to be sufficient). Sources: Literature, Radboud University Medical Center, Nijmegen |
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