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Intellectual disability syndromic and non-syndromic v1.287 SCN3B Zornitza Stark Marked gene: SCN3B as ready
Intellectual disability syndromic and non-syndromic v1.287 SCN3B Zornitza Stark Gene: scn3b has been classified as Amber List (Moderate Evidence).
Intellectual disability syndromic and non-syndromic v1.287 SCN3B Zornitza Stark Classified gene: SCN3B as Amber List (moderate evidence)
Intellectual disability syndromic and non-syndromic v1.287 SCN3B Zornitza Stark Gene: scn3b has been classified as Amber List (Moderate Evidence).
Intellectual disability syndromic and non-syndromic v1.252 SCN3B Sarah Milton gene: SCN3B was added
gene: SCN3B was added to Intellectual disability syndromic and non-syndromic. Sources: Literature
Mode of inheritance for gene: SCN3B was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SCN3B were set to PMID: 40879121
Phenotypes for gene: SCN3B were set to Neurodevelopmental disorder, MONDO:0700092, SCN3B-related
Review for gene: SCN3B was set to AMBER
Added comment: SCN3B Encodes b3 auxiliary subunit of the sodium channel.

4 affected individuals from 2 consanguineous families reported in PMID: 40879121 with biallelic variants in this gene with neurodevelopmental phenotypes. Presentation included GDD, ID of variable severity, autism, seizures.
One variant was nonsense, one canonical splice site in the penultimate exon.

No homozygous LOF variants in gnomAD v4.

Some functional studies performed with loss of function of channel demonstrated for one variant.
Sources: Literature