ClinVar Miner

Submissions for variant NM_000232.5(SGCB):c.274A>G (p.Ile92Val)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV005202797 SCV005832955 uncertain significance Autosomal recessive limb-girdle muscular dystrophy type 2E 2024-09-17 criteria provided, single submitter clinical testing This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 92 of the SGCB protein (p.Ile92Val). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with SGCB-related conditions. Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt SGCB protein function with a negative predictive value of 80%. This variant disrupts the p.Ile92 amino acid residue in SGCB. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 15938573, 16524571, 22095924, 25862795). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

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