rs80359090

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP6

The NM_000059.4(BRCA2):​c.8432A>G​(p.Asp2811Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000991 in 1,613,870 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes š‘“: 0.000010 ( 0 hom. )

Consequence

BRCA2
NM_000059.4 missense

Scores

2
10
4

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:7B:3

Conservation

PhyloP100: 4.07
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 -1 ACMG points.

BP6
Variant 13-32370502-A-G is Benign according to our data. Variant chr13-32370502-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 52585.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=5}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BRCA2NM_000059.4 linkc.8432A>G p.Asp2811Gly missense_variant Exon 19 of 27 ENST00000380152.8 NP_000050.3 P51587

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BRCA2ENST00000380152.8 linkc.8432A>G p.Asp2811Gly missense_variant Exon 19 of 27 5 NM_000059.4 ENSP00000369497.3 P51587
BRCA2ENST00000530893.7 linkc.8063A>G p.Asp2688Gly missense_variant Exon 19 of 27 1 ENSP00000499438.2 A0A590UJI7
BRCA2ENST00000614259.2 linkn.*490A>G non_coding_transcript_exon_variant Exon 18 of 26 2 ENSP00000506251.1 A0A7P0TAP7
BRCA2ENST00000614259 linkn.*490A>G 3_prime_UTR_variant Exon 18 of 25 2 ENSP00000506251.1 A0A7P0TAP7

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152180
Hom.:
0
Cov.:
32
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251384
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135874
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000103
AC:
15
AN:
1461690
Hom.:
0
Cov.:
31
AF XY:
0.0000124
AC XY:
9
AN XY:
727166
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000126
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152180
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74340
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000688
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:7Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Uncertain:2
Jun 17, 2022
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: BRCA2 c.8432A>G (p.Asp2811Gly) 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 8e-06 in 251384 control chromosomes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.8432A>G has been reported in the literature in an individual affected with early onset breast cancer (Malone_2000). This report does not provide unequivocal conclusions about association of the variant with Hereditary Breast And Ovarian Cancer Syndrome. Several publications have used a variety of in silico modelling tools to predict the impact of the variant on protein function and have classified it as having a neutral or likely benign effect (e.g. Karchin_2008, Padilla_2019, Cline_2019). For example, a recent report from the CAGI5 (fifth Critical Assessment of Genome Interpretation) Challenge has classified this variant as likely benign in a prediction protocol that includes assessment of the impact of this variant on splicing and protein function using four sets of predictors (Padilla_2019). This classification was also supported by consensus from six prediction teams in a second publication, also as part of the CAGI5 ENIGMA Challenge (Cline_2019). Five clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014. Two laboratories classified the variant as likely benign and three as VUS. . Based on the evidence outlined above, the variant was classified as VUS-possibly benign. -

Jun 16, 2016
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant identified in a genome or exome case(s) and assessed due to predicted null impact of the variant or pathogenic assertions in the literature or databases. Disclaimer: This variant has not undergone full assessment. The following are preliminary notes: Reported in 1 paper; ClinVar: 1 VUS -

not provided Uncertain:2
Jul 03, 2024
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The BRCA2 c.8432A>G (p.Asp2811Gly) variant has been reported in the published literature in an individual with breast cancer (PMIDs: 10717622 (2000)). Multifactorial studies have suggested that this variant is likely to be neutral (PMIDs: 19043619 (2008), 31131967 (2019, and 31294896 (2019)). The frequency of this variant in the general population, 0.000008 (2/251384 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 damaging. Based on the available information, we are unable to determine the clinical significance of this variant. -

Aug 19, 2024
Mayo Clinic Laboratories, Mayo Clinic
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Breast-ovarian cancer, familial, susceptibility to, 2 Uncertain:1Benign:1
May 29, 2002
Breast Cancer Information Core (BIC) (BRCA2)
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Aug 23, 2023
All of Us Research Program, National Institutes of Health
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
Apr 21, 2016
Color Diagnostics, LLC DBA Color Health
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jun 16, 2023
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.D2811G variant (also known as c.8432A>G), located in coding exon 18 of the BRCA2 gene, results from an A to G substitution at nucleotide position 8432. The aspartic acid at codon 2811 is replaced by glycine, an amino acid with similar properties. This alteration was reported in a woman with breast cancer from a population based case-control study (Malone KE et al. Cancer 2000 Mar; 88(6):1393-402). Of note, this alteration is also known as 8660A>G in published literature. This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

BRCA2-related disorder Uncertain:1
Aug 09, 2024
PreventionGenetics, part of Exact Sciences
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

The BRCA2 c.8432A>G variant is predicted to result in the amino acid substitution p.Asp2811Gly. This variant was reported in an individual with breast cancer (Malone et al. 2000. PubMed ID: 10717622). This variant is reported in 0.0054% of alleles in individuals of East Asian descent in gnomAD, and has conflicting interpretations of pathogenicity in ClinVar ranging from likely benign to uncertain (https://www.ncbi.nlm.nih.gov/clinvar/variation/52585/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Hereditary breast ovarian cancer syndrome Benign:1
Jan 19, 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
0.15
BayesDel_addAF
Pathogenic
0.18
D
BayesDel_noAF
Pathogenic
0.19
CADD
Uncertain
25
DANN
Uncertain
1.0
Eigen
Uncertain
0.52
Eigen_PC
Uncertain
0.52
FATHMM_MKL
Uncertain
0.91
D
M_CAP
Uncertain
0.22
D
MetaRNN
Uncertain
0.72
D;D
MetaSVM
Uncertain
-0.27
T
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-1.8
N;N
REVEL
Uncertain
0.57
Sift
Uncertain
0.0020
D;D
Sift4G
Uncertain
0.011
D;D
Vest4
0.81
MutPred
0.75
Loss of stability (P = 0.0149);Loss of stability (P = 0.0149);
MVP
0.91
MPC
0.18
ClinPred
0.89
D
GERP RS
5.2
gMVP
0.57

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: rs80359090; hg19: chr13-32944639; API