ClinVar Miner

Submissions for variant NM_000059.4(BRCA2):c.1306A>C (p.Lys436Gln)

dbSNP: rs2137469924
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001942686 SCV002133138 uncertain significance Hereditary breast ovarian cancer syndrome 2021-10-28 criteria provided, single submitter clinical testing 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. 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 not expected to disrupt BRCA2 protein function. This variant has not been reported in the literature in individuals affected with BRCA2-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces lysine, which is basic and polar, with glutamine, which is neutral and polar, at codon 436 of the BRCA2 protein (p.Lys436Gln).
Ambry Genetics RCV002386625 SCV002689950 uncertain significance Hereditary cancer-predisposing syndrome 2020-06-15 criteria provided, single submitter clinical testing The p.K436Q variant (also known as c.1306A>C), located in coding exon 9 of the BRCA2 gene, results from an A to C substitution at nucleotide position 1306. The lysine at codon 436 is replaced by glutamine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. 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.
University of Washington Department of Laboratory Medicine, University of Washington RCV002386625 SCV003849989 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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