ClinVar Miner

Submissions for variant NM_002103.5(GYS1):c.1475A>T (p.Asp492Val)

gnomAD frequency: 0.00001  dbSNP: rs949286022
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001208055 SCV001379427 uncertain significance Glycogen storage disease due to muscle and heart glycogen synthase deficiency 2021-08-26 criteria provided, single submitter clinical testing This sequence change replaces aspartic acid with valine at codon 492 of the GYS1 protein (p.Asp492Val). The aspartic acid residue is highly conserved and there is a large physicochemical difference between aspartic acid and valine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals affected with GYS1-related conditions. 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. 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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