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Intellectual disability v5.496 SNF8 Achchuthan Shanmugasundram Classified gene: SNF8 as Amber List (moderate evidence)
Intellectual disability v5.496 SNF8 Achchuthan Shanmugasundram Added comment: Comment on list classification: There are three unrelated cases with intellectual disability and hence this gene can be promoted to green rating in the next GMS review.
Intellectual disability v5.496 SNF8 Achchuthan Shanmugasundram Gene: snf8 has been classified as Amber List (Moderate Evidence).
Intellectual disability v5.495 SNF8 Achchuthan Shanmugasundram Tag Q1_24_promote_green tag was added to gene: SNF8.
Intellectual disability v5.495 SNF8 Achchuthan Shanmugasundram changed review comment from: PMID:38423010 reported nine individuals from six families presenting with a spectrum of neurodevelopmental/ neurodegenerative features caused by biallelic variants in SNF8. The phenotypic spectrum included four individuals with severe developmental and epileptic encephalopathy with leukoencephalopathy and early death in three of those cases. Two individuals died too young to develop epilepsy. 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 loss of function as the disease mechanism.
Sources: Literature; to: PMID:38423010 reported nine individuals from six families presenting with a spectrum of neurodevelopmental/ neurodegenerative features caused by biallelic variants in SNF8.

The phenotypic spectrum included four individuals with severe developmental and epileptic encephalopathy with leukoencephalopathy and early death in three of those cases. Two individuals died too young to develop epilepsy. 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 loss of function as the disease mechanism.

This gene has not yet been associated with any phenotypes either in OMIM or in Gene2Phenotype.
Sources: Literature
Intellectual disability v5.495 SNF8 Achchuthan Shanmugasundram gene: SNF8 was added
gene: SNF8 was added to Intellectual disability - microarray and sequencing. 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; intellectual disability, MONDO:0001071
Review for gene: SNF8 was set to GREEN
Added comment: PMID:38423010 reported nine individuals from six families presenting with a spectrum of neurodevelopmental/ neurodegenerative features caused by biallelic variants in SNF8. The phenotypic spectrum included four individuals with severe developmental and epileptic encephalopathy with leukoencephalopathy and early death in three of those cases. Two individuals died too young to develop epilepsy. 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 loss of function as the disease mechanism.
Sources: Literature