13-32340384-T-G

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The NM_000059.4(BRCA2):c.6029T>G(p.Val2010Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000684 in 1,461,582 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V2010I) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

BRCA2
NM_000059.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:9B:2

Conservation

PhyloP100: -0.272

Publications

17 publications found

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]

BRCA2 Gene-Disease associations (from GenCC):

breast-ovarian cancer, familial, susceptibility to, 2
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), ClinGen
Fanconi anemia complementation group D1
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen, G2P
pancreatic cancer, susceptibility to, 2
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
sarcoma
Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
hereditary breast ovarian cancer syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Fanconi anemia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
medulloblastoma
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

BRCA2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.08078781).

BP6

Variant 13-32340384-T-G is Benign according to our data. Variant chr13-32340384-T-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 51991.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BRCA2	NM_000059.4 link	c.6029T>G	p.Val2010Gly	missense_variant	Exon 11 of 27	ENST00000380152.8	NP_000050.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein
BRCA2	ENST00000380152.8 link	c.6029T>G	p.Val2010Gly	missense_variant	Exon 11 of 27	5	NM_000059.4	ENSP00000369497.3
BRCA2	ENST00000530893.7 link	c.5660T>G	p.Val1887Gly	missense_variant	Exon 11 of 27	1		ENSP00000499438.2
BRCA2	ENST00000614259.2 link	n.6029T>G		non_coding_transcript_exon_variant	Exon 10 of 26	2		ENSP00000506251.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000199

AC:

AN:

250814

AF XY:

0.0000295

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000272

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000684

AC:

AN:

1461582

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727086

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33468

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26128

East Asian (EAS)

AF:

0.000252

AC:

AN:

39656

South Asian (SAS)

AF:

0.00

AC:

AN:

86248

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53380

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111834

Other (OTH)

AF:

0.00

AC:

AN:

60380

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

ExAC

AF:

0.0000330

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:9Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Breast-ovarian cancer, familial, susceptibility to, 2

Uncertain:4

May 31, 2023

All of Us Research Program, National Institutes of Health

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This missense variant replaces valine with glycine at codon 2010 of the BRCA2 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has been reported in individuals affected with breast cancer or prostate cancer, and has been reported in several unaffected individuals (PMID: 18779604, 24249303, 27658390, 29215753, 31214711, 32980694). In 2 large breast cancer case-control studies conducted in Japan and by the BRIDGES consortium, this variant was reported in 5/7051 female cases and 9/11241 female controls (OR=0.885632780741425 (0.2-2.9)) (PMID: 30287823), and in 2/60466 cases and 4/53461 controls (OR=0.442 (95%CI 0.081 to 2.414); p-value=0.429) (PMID: 33471991), respectively. This variant has been identified in 5/250814 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.

May 29, 2002

Breast Cancer Information Core (BIC) (BRCA2)

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

Mar 10, 2016

Counsyl

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com.

Aug 24, 2012

Sharing Clinical Reports Project (SCRP)

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

Hereditary cancer-predisposing syndrome

Uncertain:1Benign:2

May 09, 2023

Color Diagnostics, LLC DBA Color Health

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This missense variant replaces valine with glycine at codon 2010 of the BRCA2 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has been reported in individuals with a personal or family history of breast or ovarian cancer and in two individuals affected with esophageal cancer (PMID: 9133456,18779604, 24249303, 27658390, 29176636, 29215753, 31396961, 35681111). This variant has also been detected in breast, pancreatic, and prostate cancer case-control studies in which disease association could not be established (PMID: 30287823, 31214711, 32980694, 33471991; Leiden Open Variation Database DB-ID BRCA2_002250). This variant has been identified in 5/250814 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.

Jul 25, 2024

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 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).

not provided

Uncertain:2

Feb 04, 2020

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Observed in individuals with breast and other cancers (Inoue 1997, Kurian 2008, Haffty 2009, Lu 2015, Nakamura 2015, Yoon 2017, Momozawa 2018, So 2019); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Also known as c.6257T>G; This variant is associated with the following publications: (PMID: 29338689, 18779604, 30415210, 30287823, 9133456, 24249303, 19491284, 26689913, 27658390, 30725392, 29215753, 31131967, 31822803, 29176636)

Apr 12, 2019

Quest Diagnostics Nichols Institute San Juan Capistrano

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Hereditary breast ovarian cancer syndrome

Uncertain:2

Jul 02, 2018

Mendelics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Dec 26, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces valine, which is neutral and non-polar, with glycine, which is neutral and non-polar, at codon 2010 of the BRCA2 protein (p.Val2010Gly). This variant is present in population databases (rs80358839, gnomAD 0.03%). This missense change has been observed in individual(s) with a personal and/or family history of breast and/or ovarian cancer, stomach adenocarcinoma (PMID: 18779604, 19491284, 26689913, 27124784, 27658390, 29176636, 29215753, 30287823, 31907386). ClinVar contains an entry for this variant (Variation ID: 51991). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt BRCA2 protein function with a negative predictive value of 95%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.085

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.41

CADD

Benign

7.1

(source)

DANN

Benign

0.70

DEOGEN2

Benign

0.0

.;.

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.071

LIST_S2

Benign

0.0

.;.

M_CAP

Benign

0.073

MetaRNN

Benign

0.081

T;T

MetaSVM

Benign

-0.91

MutationAssessor

Benign

0.0

.;.

PhyloP100

-0.27

PrimateAI

Benign

0.22

PROVEAN

Uncertain

-4.1

D;D

REVEL

Benign

0.19

Sift

Benign

0.094

T;T

Sift4G

Benign

0.34

T;T

Vest4

0.23

ClinPred

0.024

GERP RS

1.7

gMVP

0.23

Mutation Taster

=77/23

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over