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):​c.5737T>C​(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

Genomes: š‘“ 0.000046 ( 0 hom., cov: 33)
Exomes š‘“: 0.000027 ( 0 hom. )

Consequence

BRCA2
NM_000059.4 missense

Scores

1
15

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:7

Conservation

PhyloP100: -0.582
Variant links:
Genes affected
BRCA2 (HGNC:1101): (BRCA2 DNA repair associated) Inherited mutations in BRCA1 and this gene, BRCA2, confer increased lifetime risk of developing breast or ovarian cancer. Both BRCA1 and BRCA2 are involved in maintenance of genome stability, specifically the homologous recombination pathway for double-strand DNA repair. The largest exon in both genes is exon 11, which harbors the most important and frequent mutations in breast cancer patients. The BRCA2 gene was found on chromosome 13q12.3 in human. The BRCA2 protein contains several copies of a 70 aa motif called the BRC motif, and these motifs mediate binding to the RAD51 recombinase which functions in DNA repair. BRCA2 is considered a tumor suppressor gene, as tumors with BRCA2 mutations generally exhibit loss of heterozygosity (LOH) of the wild-type allele. [provided by RefSeq, May 2020]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.10982159).
BP6
Variant 13-32340092-T-C is Benign according to our data. Variant chr13-32340092-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 37992.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=5, Benign=1, Uncertain_significance=3}. Variant chr13-32340092-T-C is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BRCA2NM_000059.4 linkc.5737T>C p.Cys1913Arg missense_variant Exon 11 of 27 ENST00000380152.8 NP_000050.3 P51587

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BRCA2ENST00000380152.8 linkc.5737T>C p.Cys1913Arg missense_variant Exon 11 of 27 5 NM_000059.4 ENSP00000369497.3 P51587
BRCA2ENST00000530893.7 linkc.5368T>C p.Cys1790Arg missense_variant Exon 11 of 27 1 ENSP00000499438.2 A0A590UJI7
BRCA2ENST00000614259.2 linkn.5737T>C non_coding_transcript_exon_variant Exon 10 of 26 2 ENSP00000506251.1 A0A7P0TAP7

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152212
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000103
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
250954
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135684
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000353
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000267
AC:
39
AN:
1461616
Hom.:
0
Cov.:
46
AF XY:
0.0000316
AC XY:
23
AN XY:
727094
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000333
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152212
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74358
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000582
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.000109
EpiControl
AF:
0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:5Benign:7
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Breast-ovarian cancer, familial, susceptibility to, 2 Uncertain:2Benign:1
Aug 16, 2000
Breast Cancer Information Core (BIC) (BRCA2)
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Sep 09, 2016
Counsyl
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

May 01, 2012
Sharing Clinical Reports Project (SCRP)
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

not provided Uncertain:2Benign:1
Feb 06, 2017
Mayo Clinic Laboratories, Mayo Clinic
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Jan 15, 2024
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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. -

Mar 25, 2021
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 16683254, 26689913) -

Hereditary cancer-predisposing syndrome Benign:3
Mar 23, 2023
University of Washington Department of Laboratory Medicine, University of Washington
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: curation

Missense variant in a coldspot region where missense variants are very unlikely to be pathogenic (PMID:31911673). -

Mar 08, 2017
Color Diagnostics, LLC DBA Color Health
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Apr 30, 2018
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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
Jun 07, 2022
Genetics and Molecular Pathology, SA Pathology
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:1
Jan 15, 2025
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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
Jan 29, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.085
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
0.050
DANN
Benign
0.36
Eigen
Benign
-1.6
Eigen_PC
Benign
-1.7
FATHMM_MKL
Benign
0.036
N
M_CAP
Benign
0.027
D
MetaRNN
Benign
0.11
T;T
MetaSVM
Benign
-0.99
T
PrimateAI
Benign
0.24
T
PROVEAN
Uncertain
-2.9
D;D
REVEL
Benign
0.29
Sift
Benign
0.41
T;T
Sift4G
Benign
0.34
T;T
Vest4
0.22
MVP
0.68
MPC
0.026
ClinPred
0.068
T
GERP RS
-11
gMVP
0.12

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs80358799; hg19: chr13-32914229; API