ClinVar Miner

Submissions for variant NM_007294.3(BRCA1):c.3752G>A (p.Cys1251Tyr) (rs879254079)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000236428 SCV000293383 uncertain significance not provided 2015-11-03 criteria provided, single submitter clinical testing This variant is denoted BRCA1 c.3752G>A at the cDNA level, p.Cys1251Tyr (C1251Y) at the protein level, and results in the change of a Cysteine to a Tyrosine (TGT>TAT). Using alternate nomenclature, this variant would be defined as BRCA1 3871G>A. This variant has not, to our knowledge, been published in the literature as pathogenic or benign. BRCA1 Cys1251Tyr was not observed in approximately 6,500 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, suggesting it is not a common benign variant in these populations. Since Cysteine and Tyrosine differ in polarity, charge, size or other properties, this is considered a non-conservative amino acid substitution. BRCA1 Cys1251Tyr occurs at a position that is not conserved and is not located in a known functional domain (UniProt). In silico analyses predict that this variant is unlikely to alter protein structure or function. Based on currently available evidence, it is unclear whether BRCA1 Cys1251Tyr is a pathogenic or benign variant. We consider it to be a variant of uncertain significance.

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