13-32340092-T-C
Variant summary
Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4_ModerateBP6
The NM_000059.4(BRCA2):āc.5737T>Cā(p.Cys1913Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000285 in 1,613,828 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_000059.4 missense
Scores
Clinical Significance
Conservation
Genome browser will be placed here
ACMG classification
Verdict is Likely_benign. Variant got -3 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
BRCA2 | ENST00000380152.8 | c.5737T>C | p.Cys1913Arg | missense_variant | Exon 11 of 27 | 5 | NM_000059.4 | ENSP00000369497.3 | ||
BRCA2 | ENST00000530893.7 | c.5368T>C | p.Cys1790Arg | missense_variant | Exon 11 of 27 | 1 | ENSP00000499438.2 | |||
BRCA2 | ENST00000614259.2 | n.5737T>C | non_coding_transcript_exon_variant | Exon 10 of 26 | 2 | ENSP00000506251.1 |
Frequencies
GnomAD3 genomes AF: 0.0000460 AC: 7AN: 152212Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000159 AC: 4AN: 250954Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135684
GnomAD4 exome AF: 0.0000267 AC: 39AN: 1461616Hom.: 0 Cov.: 46 AF XY: 0.0000316 AC XY: 23AN XY: 727094
GnomAD4 genome AF: 0.0000460 AC: 7AN: 152212Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2AN XY: 74358
ClinVar
Submissions by phenotype
Breast-ovarian cancer, familial, susceptibility to, 2 Uncertain:2Benign:1
- -
- -
- -
not provided Uncertain:2Benign:1
- -
The BRCA2 c.5737T>C (p.Cys1913Arg) variant has been reported in the published literature in individuals with breast and/or ovarian cancer (PMID: 32772980 (2020), 16683254 (2006), 26689913 (2015), 33471991 (2021), see also LOVD (http://databases.lovd.nl/shared/genes/BRCA2)). This variant has also been identified in reportedly healthy individuals (PMID: 33471991 (2021), see also LOVD (http://databases.lovd.nl/shared/genes/BRCA2)). In addition, this variant has been reported to be located in a region of the BRCA2 gene that is tolerant to missense sequence changes (PMID: 31911673 (2020)). The frequency of this variant in the general population, 0.000039 (5/128832 chromosomes (Genome Aggregation Database, http://gnomad.broadinstitute.org)), is uninformative in the assessment of its pathogenicity. Analysis of this variant using bioinformatics tools for the prediction of the effect of amino acid changes on protein structure and function yielded predictions that this variant is benign. Based on the available information, we are unable to determine the clinical significance of this variant. -
This variant is associated with the following publications: (PMID: 16683254, 26689913) -
Hereditary cancer-predisposing syndrome Benign:3
Missense variant in a coldspot region where missense variants are very unlikely to be pathogenic (PMID:31911673). -
- -
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Familial cancer of breast Uncertain:1
- -
not specified Benign:1
Variant summary: BRCA2 c.5737T>C (p.Cys1913Arg) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 1.6e-05 in 250954 control chromosomes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.5737T>C has been reported in the literature in individuals affected with Breast Cancer (Moghadasi_2013, Lu_2015, Nguyen-Dumont_2020). These report(s) do not provide unequivocal conclusions about association of the variant with Hereditary Breast And Ovarian Cancer Syndrome. At least one co-occurrence with another pathogenic variant has been reported in the BIC database (BRCA1 c.213-12A>G), providing supporting evidence for a benign role. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 26689913, 31409081, 23231788, 32772980). ClinVar contains an entry for this variant (Variation ID: 37992). Based on the evidence outlined above, the variant was classified as likely benign. -
Hereditary breast ovarian cancer syndrome Benign:1
- -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at