Sarah Leigh changed review comment from: Comment on mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown from BOTH monoallelic and biallelic, autosomal or pseudoautosomal, while the strength of the evidence is reviewed.; to: Comment on mode of inheritance: The mode of inheritance has been reverted to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown from BOTH monoallelic and biallelic, autosomal or pseudoautosomal, while the strength of the evidence is reviewed.
Sarah Leigh Added comment: Comment on mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown from BOTH monoallelic and biallelic, autosomal or pseudoautosomal, while the strength of the evidence is reviewed.
Sarah Leigh Mode of inheritance for gene: SCN8A was changed from BOTH monoallelic and biallelic, autosomal or pseudoautosomal to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Helen Lord reviewed gene: SCN8A: Rating: GREEN; Mode of pathogenicity: None; Publications: 31625145; Phenotypes: ; Mode of inheritance: BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
Arina Puzriakova Phenotypes for gene: SCN8A were changed from ?Cognitive impairment with or without cerebellar ataxia,614306; Epileptic encephalopathy, early infantile,614558; Seizures, benign familial infantile,617080 to Developmental and epileptic encephalopathy 13, OMIM:614558; Seizures, benign familial infantile, 5, OMIM:617080; ?Myoclonus, familial, 2, OMIM:618364
Sarah Leigh Added comment: Comment on mode of pathogenicity: Based on report in PMID 31625145, reporting biallelic loss of function SCN8A variants in three cases in two families with severe developmental and epileptic encephalopathy. This differs from the previosly reported gain of function, monoallelic variants (PMID 24194747;22365152).
Sarah Leigh Added comment: Comment on mode of pathogenicity: Based on report in PMID 31625145, reporting biallelic loss of function SCN8A variants in three cases in two families with severe developmental and epileptic encephalopathy.
Sarah Leigh Added comment: Comment on mode of inheritance: Based on report in PMID 31625145, reporting biallelic loss of function SCN8A variants in three cases in two families with severe developmental and epileptic encephalopathy.
Sarah Leigh Mode of inheritance for gene: SCN8A was changed from MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Sarah Leigh Phenotypes for gene: SCN8A were changed from Cognitive impairment with or without cerebellar ataxia; Intellectual disability; Epileptic encephalopathy, early infantile, 13 to ?Cognitive impairment with or without cerebellar ataxia,614306; Epileptic encephalopathy, early infantile,614558; Seizures, benign familial infantile,617080
Sarah Leigh Publications for gene: SCN8A were set to Trudeau et al (2004) J Med Genet 43: 527_530; O'Brien and Meisler (2013) Frontiers in Genet 4(213): 1-9; Veeramah et al (2012) Am J Hum Genet 90: 502_510
Zornitza Stark reviewed gene: SCN8A: Rating: GREEN; Mode of pathogenicity: Other; Publications: 31625145; Phenotypes: Epileptic encephalopathy, early infantile, 13, MIM# 614558, dominant and recessive; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal; Current diagnostic: yes
Tracy Lester reviewed gene: SCN8A: Rating: GREEN; Mode of pathogenicity: ; Publications: 22365152, 24194747 ; Phenotypes: ?Cognitive impairment with or without cerebellar ataxia,614306, Epileptic encephalopathy, early infantile,614558, Seizures, benign familial infantile,617080; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted