rs80359150

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4BP6_Very_Strong

The NM_000059.4(BRCA2):​c.8972G>A​(p.Arg2991His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000385 in 1,611,694 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000040 ( 0 hom. )

Consequence

BRCA2
NM_000059.4 missense

Scores

2
8
6

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts U:1B:10

Conservation

PhyloP100: 7.22
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 -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.35748103).
BP6
Variant 13-32379768-G-A is Benign according to our data. Variant chr13-32379768-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 38200.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BRCA2NM_000059.4 linkc.8972G>A p.Arg2991His missense_variant Exon 23 of 27 ENST00000380152.8 NP_000050.3 P51587

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BRCA2ENST00000380152.8 linkc.8972G>A p.Arg2991His missense_variant Exon 23 of 27 5 NM_000059.4 ENSP00000369497.3 P51587
BRCA2ENST00000530893.7 linkc.8603G>A p.Arg2868His missense_variant Exon 23 of 27 1 ENSP00000499438.2 A0A590UJI7
BRCA2ENST00000614259.2 linkn.*1030G>A non_coding_transcript_exon_variant Exon 22 of 26 2 ENSP00000506251.1 A0A7P0TAP7
BRCA2ENST00000614259 linkn.*1030G>A 3_prime_UTR_variant Exon 22 of 25 2 ENSP00000506251.1 A0A7P0TAP7

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152002
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000656
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000837
AC:
21
AN:
250784
Hom.:
0
AF XY:
0.0000811
AC XY:
11
AN XY:
135556
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000405
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000404
AC:
59
AN:
1459692
Hom.:
0
Cov.:
31
AF XY:
0.0000482
AC XY:
35
AN XY:
726280
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.000335
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000928
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000279
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152002
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74254
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000656
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000491
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000494
AC:
6
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Benign/Likely benign
Submissions summary: Uncertain:1Benign:10
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Breast-ovarian cancer, familial, susceptibility to, 2 Uncertain:1Benign:2
Dec 23, 2003
Breast Cancer Information Core (BIC) (BRCA2)
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Sep 01, 2023
Department of Medical and Surgical Sciences, University of Bologna
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

BS1(Strong)+BS3(Strong) according to ACMG/AMP classification guidelines specified for BRCA1 & BRCA2 (Classification Criteria V1.0.0 2023-09-08 - https://cspec.genome.network/cspec/ui/svi/affiliation/50087) (PMID: 38160042) -

Jan 05, 2012
Sharing Clinical Reports Project (SCRP)
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Benign:3
Mar 29, 2019
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. -

Jun 09, 2021
Sema4, Sema4
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: curation

- -

Oct 29, 2015
Color Diagnostics, LLC DBA Color Health
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:2
Oct 21, 2021
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: BRCA2 c.8972G>A (p.Arg2991His) results in a non-conservative amino acid change in the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 8.4e-05 in 250784 control chromosomes, predominantly at a frequency of 0.00041 within the Latino subpopulation in the gnomAD database. This frequency is not significantly higher than expected for a pathogenic variant in BRCA2 causing Hereditary Breast And Ovarian Cancer Syndrome (8.4e-05 vs 0.00075), allowing no conclusion about variant significance. c.8972G>A has been reported in the literature in individuals affected with Hereditary Breast And Ovarian Cancer Syndrome (Zuntini_2018, Dorling_2021, Guo_2020), without strong evidence for causality. These reports do not provide unequivocal conclusions about association of the variant with Hereditary Breast And Ovarian Cancer Syndrome. Co-occurrences with other pathogenic variants have been reported from publicly available databses (BRCA2 c.5645C>A, p.Ser1882X; BRCA2 c.9924C>G, p.Tyr3308X), providing supporting evidence for a benign role. Two independent studies showed the variant to have functional HDR activity (Guidugli_2018, Richardson_2021) and one study reported the variant to have no impact on splicing (Whiley_2010). Six clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. Five labs classified the variant as likely bening/benign while one classified as VUS. Based on the evidence outlined above, the variant was classified as benign. -

Jan 24, 2020
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary breast ovarian cancer syndrome Benign:2
Aug 26, 2021
St. Jude Molecular Pathology, St. Jude Children's Research Hospital
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The BRCA2 c.8972G>A (p.Arg2991His) missense change has a maximum subpopulation frequency of 0.040% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org/variant/13-32953905-G-A). In silico tools are not in agreement about effect of this variant on protein function, however in vitro functional studies have shown that this variant results in an activity comparable to the wild type in homology-directed DNA repair (HDR) assays (BS3; PMID: 29394989). This variant has been reported in two women older than 70 years of age who have never had cancer (BS2_supporting; https://whi.color.com/variant/13-32953905-G-A). It has also been reported in an individual with breast or ovarian cancer (PMID: 30254663). In summary, this variant meets criteria to be classified as likely benign based on the ACMG/AMP criteria: BS3, BS2_supporting. -

Jan 17, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:1
May 10, 2021
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 19043619, 17899372, 20507642, 22632462, 26554728, 29394989, 30254663, 29884841, 33609447) -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.079
T
BayesDel_noAF
Uncertain
-0.030
CADD
Pathogenic
28
DANN
Uncertain
1.0
Eigen
Uncertain
0.54
Eigen_PC
Uncertain
0.55
FATHMM_MKL
Pathogenic
0.99
D
M_CAP
Uncertain
0.19
D
MetaRNN
Benign
0.36
T;T
MetaSVM
Uncertain
-0.13
T
PrimateAI
Benign
0.35
T
PROVEAN
Benign
-1.3
N;N
REVEL
Uncertain
0.51
Sift
Uncertain
0.0020
D;D
Sift4G
Pathogenic
0.0
D;D
Vest4
0.50
MVP
0.89
MPC
0.17
ClinPred
0.33
T
GERP RS
4.8
gMVP
0.59

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
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: rs80359150; hg19: chr13-32953905; COSMIC: COSV101204253; COSMIC: COSV101204253; API