ClinVar Miner

Submissions for variant NM_021957.4(GYS2):c.1334C>T (p.Thr445Met)

gnomAD frequency: 0.00001  dbSNP: rs776104371
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001224406 SCV001396598 uncertain significance Glycogen storage disorder due to hepatic glycogen synthase deficiency 2022-10-08 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 expected to disrupt GYS2 protein function. ClinVar contains an entry for this variant (Variation ID: 952317). This missense change has been observed in individual(s) with glycogen storage disease type 0 (PMID: 16337419, 18341095). This variant is present in population databases (rs776104371, gnomAD 0.003%). This sequence change replaces threonine, which is neutral and polar, with methionine, which is neutral and non-polar, at codon 445 of the GYS2 protein (p.Thr445Met).

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