rs1799943

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000059.4(BRCA2):​c.-26G>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.257 in 1,601,606 control chromosomes in the GnomAD database, including 55,659 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★★).

Frequency

Genomes: 𝑓 0.21 ( 3886 hom., cov: 33)
Exomes 𝑓: 0.26 ( 51773 hom. )

Consequence

BRCA2
NM_000059.4 5_prime_UTR

Scores

2

Clinical Significance

Benign reviewed by expert panel B:25O:1

Conservation

PhyloP100: 0.546
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 Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 13-32316435-G-A is Benign according to our data. Variant chr13-32316435-G-A is described in ClinVar as [Benign]. Clinvar id is 125965.Status of the report is reviewed_by_expert_panel, 3 stars. Variant chr13-32316435-G-A is described in Lovd as [Likely_benign]. Variant chr13-32316435-G-A is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.373 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BRCA2NM_000059.4 linkc.-26G>A 5_prime_UTR_variant Exon 2 of 27 ENST00000380152.8 NP_000050.3 P51587

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BRCA2ENST00000380152 linkc.-26G>A 5_prime_UTR_variant Exon 2 of 27 5 NM_000059.4 ENSP00000369497.3 P51587
BRCA2ENST00000530893 linkc.-391G>A 5_prime_UTR_variant Exon 2 of 27 1 ENSP00000499438.2 A0A590UJI7
BRCA2ENST00000614259.2 linkn.-26G>A upstream_gene_variant 2 ENSP00000506251.1 A0A7P0TAP7

Frequencies

GnomAD3 genomes
AF:
0.214
AC:
32462
AN:
152032
Hom.:
3894
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.106
Gnomad AMI
AF:
0.159
Gnomad AMR
AF:
0.190
Gnomad ASJ
AF:
0.281
Gnomad EAS
AF:
0.387
Gnomad SAS
AF:
0.281
Gnomad FIN
AF:
0.191
Gnomad MID
AF:
0.310
Gnomad NFE
AF:
0.266
Gnomad OTH
AF:
0.228
GnomAD3 exomes
AF:
0.246
AC:
61394
AN:
250044
Hom.:
7996
AF XY:
0.251
AC XY:
33947
AN XY:
135172
show subpopulations
Gnomad AFR exome
AF:
0.101
Gnomad AMR exome
AF:
0.191
Gnomad ASJ exome
AF:
0.270
Gnomad EAS exome
AF:
0.375
Gnomad SAS exome
AF:
0.285
Gnomad FIN exome
AF:
0.200
Gnomad NFE exome
AF:
0.258
Gnomad OTH exome
AF:
0.243
GnomAD4 exome
AF:
0.262
AC:
379895
AN:
1449454
Hom.:
51773
Cov.:
30
AF XY:
0.264
AC XY:
190683
AN XY:
721840
show subpopulations
Gnomad4 AFR exome
AF:
0.0975
Gnomad4 AMR exome
AF:
0.193
Gnomad4 ASJ exome
AF:
0.276
Gnomad4 EAS exome
AF:
0.423
Gnomad4 SAS exome
AF:
0.287
Gnomad4 FIN exome
AF:
0.199
Gnomad4 NFE exome
AF:
0.265
Gnomad4 OTH exome
AF:
0.259
GnomAD4 genome
AF:
0.213
AC:
32439
AN:
152152
Hom.:
3886
Cov.:
33
AF XY:
0.212
AC XY:
15766
AN XY:
74374
show subpopulations
Gnomad4 AFR
AF:
0.106
Gnomad4 AMR
AF:
0.189
Gnomad4 ASJ
AF:
0.281
Gnomad4 EAS
AF:
0.387
Gnomad4 SAS
AF:
0.279
Gnomad4 FIN
AF:
0.191
Gnomad4 NFE
AF:
0.266
Gnomad4 OTH
AF:
0.225
Alfa
AF:
0.258
Hom.:
11049
Bravo
AF:
0.207
Asia WGS
AF:
0.255
AC:
889
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:25Other:1
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

Breast-ovarian cancer, familial, susceptibility to, 2 Benign:10
May 29, 2002
Breast Cancer Information Core (BIC) (BRCA2)
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Sep 21, 2015
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Nov 03, 2014
Michigan Medical Genetics Laboratories, University of Michigan
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Feb 08, 2016
Fulgent Genetics, Fulgent Genetics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jul 07, 2023
KCCC/NGS Laboratory, Kuwait Cancer Control Center
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 12, 2015
Evidence-based Network for the Interpretation of Germline Mutant Alleles (ENIGMA)
Significance: Benign
Review Status: reviewed by expert panel
Collection Method: curation

Class 1 not pathogenic based on frequency >1% in an outbred sampleset. Frequency 0.3689 (Asian), 0.04878 (African), 0.2282 (European), derived from 1000 genomes (2012-04-30). -

Mar 17, 2011
Sharing Clinical Reports Project (SCRP)
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to rule this variant out of causing disease. Therefore, this variant is classified as benign. -

Oct 09, 2014
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
GreenArray Genomic Research & Solutions of Accurate Diagnostic Private Limited
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:6
-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

May 27, 2020
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Nov 01, 2017
GeneKor MSA
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Department of Pathology and Laboratory Medicine, Sinai Health System
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
Clinical Genetics Laboratory, Department of Pathology, Netherlands Cancer Institute
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

not provided Benign:3
-
Breakthrough Genomics, Breakthrough Genomics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Mar 03, 2015
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 32398771, 17945002, 23249957, 20352487, 22513257, 16760289) -

Apr 24, 2020
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Benign:2
Nov 19, 2014
Ambry Genetics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as 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. -

Mar 09, 2015
Color Diagnostics, LLC DBA Color Health
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary breast ovarian cancer syndrome Benign:2
Feb 04, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Apr 19, 2022
National Health Laboratory Service, Universitas Academic Hospital and University of the Free State
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Familial cancer of breast Benign:1Other:1
-
Genomic Research Center, Shahid Beheshti University of Medical Sciences
Significance: not provided
Review Status: no classification provided
Collection Method: literature only

- -

Feb 01, 2025
KCCC/NGS Laboratory, Kuwait Cancer Control Center
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Fanconi anemia complementation group D1 Benign:1
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
8.8
DANN
Benign
0.66

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs1799943; hg19: chr13-32890572; COSMIC: COSV61525225; COSMIC: COSV61525225; API