ClinVar Miner

Submissions for variant NM_000152.5(GAA):c.971dup (p.Ser325fs)

dbSNP: rs2143852733
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
ClinGen Lysosomal Storage Disorder Variant Curation Expert Panel RCV001789729 SCV002032132 pathogenic Glycogen storage disease, type II 2024-03-06 reviewed by expert panel curation The NM_000152.5:c.971dupC (p.Ser325GlufsTer5) variant in GAA is a frameshift variant predicted to cause a premature stop codon in biologically-relevant-exon 6 out of 20, leading to nonsense mediated decay in a gene in which loss-of-function is an established disease mechanism (PVS1). One patient reported to have infantile-onset Pompe disease is compound heterozygous for the variant and a variant that has been classified as pathogenic by the ClinGen Lysosomal Diseases VCEP, c.1802C>T (p.Ser601Leu) (ClinVar Variation ID: 194154; SCV002032130.1); the phase is unconfirmed (PMID: 28394184) (PM3_Supporting). There is insufficient data to apply PP4. The variant is absent in gnomAD v2.1.1. (PM2_Supporting). In summary, this variant meets the criteria to be classified as pathogenic for Pompe disease. Initially, the variant was classified a likely pathogenic by the ClinGen Lysosomal Diseases VCEP on August 17, 2021, but it was reclassified as pathogenic on Jan 15, 2024, due to the application of PM3_Supporting. GAA-specific ACMG/AMP criteria met, as specified by the ClinGen Lysosomal Diseases Variant Curation Expert Panel (Specifications Version 2.0): PVS1, PM2_Supporting, PM3_Supporting. (Classification approved by the ClinGen Lysosomal Diseases Variant Curation Expert Panel on Feb 6, 2024).

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