ClinVar Miner

Submissions for variant NM_000352.6(ABCC8):c.4123G>A (p.Gly1375Arg)

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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 RCV003322257 SCV004026512 uncertain significance Hyperinsulinemic hypoglycemia, familial, 1 2023-08-16 criteria provided, single submitter curation The p.Gly1375Arg variant in ABCC8 has been previously reported in 2 individuals with hyperinsulinemic hypoglycemia (PMID: 20685672, Kapoor et al. 2010 thesis), and has been seen in 0.003% (1/29240) of Latino/Admixed American chromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstitute.org; dbSNP: rs866198779). Although this variant has been seen in the general population in a heterozygous state, its frequency is low enough to be consistent with a recessive carrier frequency. Of the 2 affected individuals, 1 of those were homozygous, which increases the likelihood that the p.Gly1375Arg variant is pathogenic (Kapoor et al. 2010 thesis). 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, the clinical significance of the p.Gly1375Arg variant is uncertain. ACMG/AMP Criteria applied: PP3, PM2_supporting, PM3_supporting (Richards 2015).

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