ClinVar Miner

Submissions for variant NM_000152.5(GAA):c.258del (p.Asn87fs)

dbSNP: rs761317813
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
ClinGen Lysosomal Storage Disorder Variant Curation Expert Panel RCV000666694 SCV002032143 likely pathogenic Glycogen storage disease, type II 2024-04-05 reviewed by expert panel curation The NM_000152.5:c.258del (p.Asn87ThrfsTer55) variant in GAA is a frameshift variant predicted to cause a premature stop codon in biologically-relevant-exon 2 of 20, leading to nonsense mediated decay in a gene in which loss-of-function is an established disease mechanism (PVS1). This variant is absent in gnomAD v2.1.1. (PM2_Supporting). To our knowledge, this variant has not been reported in the literature in patients with Pompe disease. There is a ClinVar entry for this variant (Variation ID:551592). In summary, this variant meets the criteria to be classified as likely pathogenic for Pompe disease. The classification of this variant has been upgraded from Variant of Uncertain Significance to likely pathogenic based on the recommendations of the ClinGen Sequence Variant Interpretation Working Group, that a variant meeting PVS1 and PM2_Supporting is classified as Likely Pathogenic (https://clinicalgenome.org/site/assets/files/5182/pm2_-_svi_recommendation_-_approved_sept2020.pdf ). The classification was first approved by the ClinGen Lysosomal Diseases Variant Curation Expert Panel on September 7, 2021. Since then, the data for this variant have been re-evaluated - no new data were identified. The classification of likely pathogenic was reapproved on April 5, 2024. GAA-specific ACMG/AMP criteria met, as specified by the ClinGen Lysosomal Diseases Variant Curation Expert Panel (Specifications Version 2.0): PVS1, PM2_Supporting.
Counsyl RCV000666694 SCV000791033 likely pathogenic Glycogen storage disease, type II 2017-04-19 criteria provided, single submitter clinical testing
Baylor Genetics RCV000666694 SCV004197893 pathogenic Glycogen storage disease, type II 2022-10-10 criteria provided, single submitter clinical testing

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