Arina Puzriakova changed review comment from: SCN8A is associated with a range of phenotypes including epilepsy, neurodevelopmental defects, and movement disorders. Some individuals with deleterious SCN8A variants develop ataxia - at least 14 individuals with ataxia reported in literature (see publications list). Variable age of onset including both childhood-onset and adult-onset cases. Mouse Scn8a mutants exhibit movement disorders including ataxia, tremor and dystonia.; to: SCN8A is associated with a range of phenotypes including epilepsy, neurodevelopmental defects, and movement disorders. Some individuals with deleterious SCN8A variants develop ataxia - at least 14 individuals with ataxia reported in literature (see publications list). Variable age of onset - mostly during childhood but adult-onset cases have also been described. Mouse Scn8a mutants exhibit movement disorders including ataxia, tremor and dystonia.
Arina Puzriakova Added comment: Comment on list classification: Upgraded from Red to Green - there is now a sufficient number of unrelated cases (>3) presenting ataxia in association with variants in the gene, supported by an animal model.
Arina Puzriakova Phenotypes for gene: SCN8A were changed from Cognitive impairment with or without cerebellar ataxia, 614306 to Cognitive impairment with or without cerebellar ataxia, OMIM:614306; Developmental and epileptic encephalopathy 13, OMIM:614558