ClinVar Miner

Submissions for variant NM_000059.4(BRCA2):c.4490T>G (p.Val1497Gly)

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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Ambry Genetics RCV002328622 SCV002639670 uncertain significance Hereditary cancer-predisposing syndrome 2022-07-02 criteria provided, single submitter clinical testing The p.V1497G variant (also known as c.4490T>G), located in coding exon 10 of the BRCA2 gene, results from a T to G substitution at nucleotide position 4490. The valine at codon 1497 is replaced by glycine, an amino acid with dissimilar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.
Labcorp Genetics (formerly Invitae), Labcorp RCV003094728 SCV003198908 uncertain significance Hereditary breast ovarian cancer syndrome 2024-09-17 criteria provided, single submitter clinical testing This sequence change replaces valine, which is neutral and non-polar, with glycine, which is neutral and non-polar, at codon 1497 of the BRCA2 protein (p.Val1497Gly). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with BRCA2-related conditions. ClinVar contains an entry for this variant (Variation ID: 1740971). 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 BRCA2 protein function with a negative predictive value of 95%. 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.
University of Washington Department of Laboratory Medicine, University of Washington RCV002328622 SCV003850551 likely benign Hereditary cancer-predisposing syndrome 2023-03-23 criteria provided, single submitter curation Missense variant in a coldspot region where missense variants are very unlikely to be pathogenic (PMID:31911673).

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