ClinVar Miner

Submissions for variant NM_000152.5(GAA):c.1804A>G (p.Thr602Ala)

dbSNP: rs781484283
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Broad Center for Mendelian Genomics, Broad Institute of MIT and Harvard RCV001249048 SCV001422993 likely pathogenic Glycogen storage disease, type II 2020-01-22 criteria provided, single submitter curation The p.Thr602Ala variant in GAA has been reported in one individual with glycogen storage disease II (PMID: 22644586) and has been identified in 0.001% (1/111482) of European (non-Finnish) chromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstitute.org; dbSNP rs781484283). Although this variant has been seen in the general population, its frequency is low enough to be consistent with a recessive carrier frequency. In vitro functional studies using cells transfected with the variant provide some evidence that the p.Thr602Ala variant may impact protein function (PMID: 22644586). However, these types of assays may not accurately represent biological function. Computational prediction tools and conservation analyses suggest that this variant may impact the protein, though this information is not predictive enough to determine pathogenicity. In summary, although additional studies are required to fully establish its clinical significance, this variant is likely pathogenic. ACMG/AMP Criteria applied: PS3, PM2, PP3 (Richards 2015).

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