ClinVar Miner

Submissions for variant NM_007294.3(BRCA1):c.550T>A (p.Ser184Thr) (rs1064795269)

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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000479099 SCV000570917 uncertain significance not provided 2016-07-07 criteria provided, single submitter clinical testing This variant is denoted BRCA1 c.550T>A at the cDNA level, p.Ser184Thr (S184T) at the protein level, and results in the change of a Serine to a Threonine (TCT>ACT). Using alternate nomenclature, this variant would be defined as BRCA1 669T>A. This variant has been observed in at least one individual with early onset breast cancer (Keshavarzi 2012). BRCA1 Ser184Thr 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 Serine and Threonine share similar properties, this is considered a conservative amino acid substitution. BRCA1 Ser184Thr occurs at a position that is conserved across species and is located in the binding domain of BRD7 and MB2 (myc binding) (Wang 1998, Harte 2010). In silico analyses are inconsistent regarding the effect this variant may have on protein structure and function. Based on currently available evidence, it is unclear whether BRCA1 Ser184Thr is a pathogenic or benign variant. We consider it to be a variant of uncertain significance.
Ambry Genetics RCV000572274 SCV000661084 uncertain significance Hereditary cancer-predisposing syndrome 2017-12-12 criteria provided, single submitter clinical testing Lines of evidence used in support of classification: Insufficient evidence
Color RCV000572274 SCV000683329 uncertain significance Hereditary cancer-predisposing syndrome 2018-07-04 criteria provided, single submitter clinical testing

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