ClinVar Miner

Submissions for variant NM_000157.4(GBA):c.509G>T (p.Arg170Leu) (rs80356763)

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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
OMIM RCV000004574 SCV000024748 pathogenic Gaucher disease, perinatal lethal 2000-03-01 no assertion criteria provided literature only
GeneReviews RCV000020155 SCV000040482 pathologic Gaucher disease 2011-02-01 no assertion criteria provided curation Converted during submission to Pathogenic.
Broad Institute Rare Disease Group, Broad Institute RCV000020155 SCV001422953 likely pathogenic Gaucher disease 2020-01-13 no assertion criteria provided curation The p.Arg170Leu variant in GBA has been reported in 2 individuals with Gaucher disease, segregated with disease in 2 affected relatives from 1 family (PMID: 10685993), and has been identified in 0.003% (1/34592) of Latino chromosomes by the Genome Aggregation Database (gnomAD,; dbSNP rs80356763). Although this variant has been seen in the general population, its frequency is low enough to be consistent with a recessive carrier frequency. This variant has also been reported in ClinVar (VariationID: 4329) as pathogenic by OMIM. Computational prediction tools and conservation analyses suggest that this variant may impact the protein, though this information is not predictive enough to determine pathogenicity. One additional pathogenic variant, resulting in a different amino acid change at the same position, p.Arg170Cys, has been reported in association with disease in the literature and ClinVar, supporting that a change at this position may not be tolerated (PMID: 29602947, 23430543, 27008851, 17427031, 20946052, 27922757, 22623374, 20880730; VariationID: 93453). The presence of this variant in 2 affected homozygotes increases the likelihood that the p.Arg170Leu variant is pathogenic (PMID: 10685993). The phenotype of an individual homozygous for this variant is highly specific for Gaucher disease based on extremely low residual enzyme activity, consistent with disease (PMID: 10685993). In summary, although additional studies are required to fully establish its clinical significance, this variant is likely pathogenic. ACMG/AMP Criteria applied: PM2, PM5, PM3, PP3, PP4 (Richards 2015).

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