ClinVar Miner

Submissions for variant NM_001330260.2(SCN8A):c.4397A>G (p.Asn1466Ser)

dbSNP: rs587777723
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000685228 SCV000812701 pathogenic Early infantile epileptic encephalopathy with suppression bursts 2022-11-29 criteria provided, single submitter clinical testing For these reasons, this variant has been classified as Pathogenic. This variant disrupts the p.Asn1466 amino acid residue in SCN8A. Other variant(s) that disrupt this residue have been observed in individuals with SCN8A-related conditions (PMID: 24888894, 31054490), which suggests that this may be a clinically significant amino acid residue. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt SCN8A protein function. ClinVar contains an entry for this variant (Variation ID: 565622). This missense change has been observed in individual(s) with clinical features of SCN8A-related conditions (Invitae). In at least one individual the variant was observed to be de novo. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces asparagine, which is neutral and polar, with serine, which is neutral and polar, at codon 1466 of the SCN8A protein (p.Asn1466Ser).

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