ClinVar Miner

Submissions for variant NM_000023.4(SGCA):c.293G>C (p.Arg98Pro)

dbSNP: rs137852621
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Eurofins Ntd Llc (ga) RCV000280379 SCV000335204 uncertain significance not provided 2015-09-04 criteria provided, single submitter clinical testing
Labcorp Genetics (formerly Invitae), Labcorp RCV001379322 SCV001577108 pathogenic Autosomal recessive limb-girdle muscular dystrophy type 2D 2024-04-19 criteria provided, single submitter clinical testing This sequence change replaces arginine, which is basic and polar, with proline, which is neutral and non-polar, at codon 98 of the SGCA protein (p.Arg98Pro). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with clinical features of limb-girdle muscular dystrophy (Invitae). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 283227). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt SGCA protein function with a positive predictive value of 95%. This variant disrupts the p.Arg98 amino acid residue in SGCA. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 7668821, 8069911, 22095924, 27120200). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. For these reasons, this variant has been classified as Pathogenic.

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