ClinVar Miner

Submissions for variant NM_007294.4(BRCA1):c.4675+3A>C

dbSNP: rs80358082
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Quest Diagnostics Nichols Institute San Juan Capistrano RCV000985422 SCV001133593 uncertain significance not provided 2019-06-29 criteria provided, single submitter clinical testing
Invitae RCV002550590 SCV003227598 uncertain significance Hereditary breast ovarian cancer syndrome 2022-08-03 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. Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. ClinVar contains an entry for this variant (Variation ID: 801080). 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 falls in intron 14 of the BRCA1 gene. It does not directly change the encoded amino acid sequence of the BRCA1 protein. It affects a nucleotide within the consensus splice site.
Ambry Genetics RCV003338890 SCV004058490 uncertain significance Hereditary cancer-predisposing syndrome 2023-09-14 criteria provided, single submitter clinical testing The c.4675+3A>C intronic variant results from an A to C substitution 3 nucleotides after coding exon 13 in the BRCA1 gene. This nucleotide position is highly conserved in available vertebrate species. In silico splice site analysis predicts that this alteration will weaken the native splice donor site and may result in the creation or strengthening of a novel splice donor site. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

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