ClinVar Miner

Submissions for variant NM_007294.4(BRCA1):c.3149G>C (p.Ser1050Thr)

dbSNP: rs1597865440
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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 RCV001018812 SCV001180091 uncertain significance Hereditary cancer-predisposing syndrome 2025-01-23 criteria provided, single submitter clinical testing The p.S1050T variant (also known as c.3149G>C), located in coding exon 9 of the BRCA1 gene, results from a G to C substitution at nucleotide position 3149. The serine at codon 1050 is replaced by threonine, an amino acid with similar properties. This variant was detected in 1 of 1197 individuals diagnosed with breast cancer who underwent genetic testing (Abdel-Razeq H et al. Front Oncol, 2022 Mar;12:673094). This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear.
Labcorp Genetics (formerly Invitae), Labcorp RCV001873312 SCV002124591 uncertain significance Hereditary breast ovarian cancer syndrome 2023-04-14 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 BRCA1 protein function. ClinVar contains an entry for this variant (Variation ID: 822994). This variant has not been reported in the literature in individuals affected with BRCA1-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces serine, which is neutral and polar, with threonine, which is neutral and polar, at codon 1050 of the BRCA1 protein (p.Ser1050Thr).
University of Washington Department of Laboratory Medicine, University of Washington RCV001018812 SCV003847366 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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