ClinVar Miner

Submissions for variant NM_000335.4(SCN5A):c.4922G>A (p.Gly1641Glu) (rs199473624)

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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Ambry Genetics RCV000619189 SCV000737682 uncertain significance Cardiovascular phenotype 2016-08-12 criteria provided, single submitter clinical testing Lines of evidence used in support of classification: Insufficient evidence
Cardiovascular Biomedical Research Unit,Royal Brompton & Harefield NHS Foundation Trust RCV000058724 SCV000090244 not provided Brugada syndrome no assertion provided literature only This variant has been reported as associated with Brugada syndrome in the following publications (PMID:20129283). This is a literature report, and does not necessarily reflect the clinical interpretation of the Imperial College / Royal Brompton Cardiovascular Genetics laboratory.
Invitae RCV000058724 SCV000832209 uncertain significance Brugada syndrome 2018-04-23 criteria provided, single submitter clinical testing This sequence change replaces glycine with glutamic acid at codon 1642 of the SCN5A protein (p.Gly1642Glu). The glycine residue is highly conserved and there is a moderate physicochemical difference between glycine and glutamic acid. This variant is not present in population databases (ExAC no frequency). This variant was reported in an individual referred for long QT diagnostic testing (PMID: 20129283) ClinVar contains an entry for this variant (Variation ID: 67940). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. 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.

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