ClinVar Miner

Submissions for variant NM_001330260.2(SCN8A):c.1730C>A (p.Pro577Gln)

dbSNP: rs373820887
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000817525 SCV000958091 uncertain significance Early infantile epileptic encephalopathy with suppression bursts 2022-12-02 criteria provided, single submitter clinical testing In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. 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 not expected to disrupt SCN8A protein function. ClinVar contains an entry for this variant (Variation ID: 660352). This variant has not been reported in the literature in individuals affected with SCN8A-related conditions. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This sequence change replaces proline, which is neutral and non-polar, with glutamine, which is neutral and polar, at codon 577 of the SCN8A protein (p.Pro577Gln).

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