ClinVar Miner

Submissions for variant NM_007294.4(BRCA1):c.5561T>C (p.Leu1854Pro)

dbSNP: rs80356996
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Total submissions: 8
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Ambry Genetics RCV000571563 SCV000661107 likely pathogenic Hereditary cancer-predisposing syndrome 2024-05-21 criteria provided, single submitter clinical testing The p.L1854P variant (also known as c.5561T>C), located in coding exon 22 of the BRCA1 gene, results from a T to C substitution at nucleotide position 5561. The leucine at codon 1854 is replaced by proline, an amino acid with similar properties. Protein functional assays have demonstrated that this alteration is non-functional (Findlay GM et al. Nature, 2018 10;562:217-222; Fernandes VC et al. J Biol Chem, 2019 04;294:5980-5992; Lee MS et al. Cancer Res., 2010 Jun;70:4880-90; Adamovich AI et al. Am J Hum Genet 2022 Apr;109(4):618-630). This alteration was also detected in 1/1664 individuals diagnosed with breast and/or ovarian cancer (Zhang Y et al. BMC Cancer, 2022 Aug;22:842).This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. This variant is considered to be rare based on population cohorts in the Genome Aggregation Database (gnomAD). Based on the majority of available evidence to date, this variant is likely to be pathogenic.
Labcorp Genetics (formerly Invitae), Labcorp RCV001326885 SCV001517938 uncertain significance Hereditary breast ovarian cancer syndrome 2021-12-17 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. Experimental studies are conflicting or provide insufficient evidence to determine the effect of this variant on BRCA1 function (PMID: 20516115, 30209399). Advanced modeling of experimental studies (such as gene expression, population dynamics, functional pathways, and cell-cycle effects in cell culture) performed at Invitae indicates that this missense variant is expected to disrupt BRCA1 protein function. ClinVar contains an entry for this variant (Variation ID: 55631). 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 leucine, which is neutral and non-polar, with proline, which is neutral and non-polar, at codon 1854 of the BRCA1 protein (p.Leu1854Pro).
Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital RCV003493430 SCV004242791 likely pathogenic not provided 2025-03-04 criteria provided, single submitter clinical testing
GeneDx RCV003493430 SCV005081126 likely pathogenic not provided 2023-12-07 criteria provided, single submitter clinical testing In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Not observed at significant frequency in large population cohorts (gnomAD); Also known as 5680T>C; This variant is associated with the following publications: (PMID: 30765603, 35196514, 29884841, 32377563, 35918668, 20516115, 28781887, 30209399, 35665744, 25348405, 31131967)
Sharing Clinical Reports Project (SCRP) RCV000083223 SCV000115297 uncertain significance Breast-ovarian cancer, familial, susceptibility to, 1 2012-02-07 no assertion criteria provided clinical testing
Breast Cancer Information Core (BIC) (BRCA1) RCV000083223 SCV000145579 uncertain significance Breast-ovarian cancer, familial, susceptibility to, 1 2003-12-23 no assertion criteria provided clinical testing
Brotman Baty Institute, University of Washington RCV000083223 SCV001242158 not provided Breast-ovarian cancer, familial, susceptibility to, 1 no assertion provided in vitro
Center for Precision Medicine, Meizhou People's Hospital RCV002250547 SCV002520768 uncertain significance Familial cancer of breast no assertion criteria provided literature only

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