ClinVar Miner

Submissions for variant NM_000059.3(BRCA2):c.(?_-1)_67+?del

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000119178 SCV000153910 pathogenic Hereditary breast ovarian cancer syndrome 2015-09-02 criteria provided, single submitter clinical testing This variant is a gross deletion of the genomic region encompassing exon 2 of the BRCA2 gene. The 3' boundary is likely confined to the intronic region between exons 2 and 3; the 5' end of this event is unknown as it extends beyond the assayed region for this gene and it may encompass additional genes. This deletion removes exon 2 and the canonical translation initiation codon from the BRCA2 mRNA. It is therefore predicted to result in an absent protein product. In addition, four different variants involving the canonical initiation codon (c.2T>A, c.2T>C, c.2T>G, c.3G>A) in exon 2 have been reported in patients with hereditary breast and/or ovarian cancer (PMID: 24607278, 24156927, 14647210, 18182601), indicating that this start site is critical for translation of a functional BRCA2 protein. A similar gross deletion of BRCA2 exon 2 has been reported in a relatively large percentage (~1.8%) of Spanish families with hereditary breast and/or ovarian cancer (PMID: 17063271). For these reasons, this variant has been classified as Pathogenic.

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