ClinVar Miner

Submissions for variant NM_000334.4(SCN4A):c.3185G>A (p.Arg1062His)

gnomAD frequency: 0.00004  dbSNP: rs769704334
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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001341210 SCV001535066 uncertain significance Hyperkalemic periodic paralysis 2024-12-31 criteria provided, single submitter clinical testing This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 1062 of the SCN4A protein (p.Arg1062His). This variant is present in population databases (rs769704334, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with SCN4A-related conditions. ClinVar contains an entry for this variant (Variation ID: 1037973). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt SCN4A protein function with a negative predictive value of 95%. 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.
GeneDx RCV001751668 SCV001986846 uncertain significance not provided 2020-07-09 criteria provided, single submitter clinical testing In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge
Revvity Omics, Revvity RCV001751668 SCV003818740 uncertain significance not provided 2019-04-02 criteria provided, single submitter clinical testing
Fulgent Genetics, Fulgent Genetics RCV005023062 SCV005651760 uncertain significance Potassium-aggravated myotonia; Paramyotonia congenita of Von Eulenburg; Hypokalemic periodic paralysis, type 2; Hyperkalemic periodic paralysis; Congenital myasthenic syndrome 16; Congenital myopathy 22A, classic; Congenital myopathy 22B, severe fetal 2024-03-19 criteria provided, single submitter clinical testing

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