NM_000059.4:c.10045A>G

Variant names:

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_ModerateBP6_Very_Strong

The NM_000059.4(BRCA2):c.10045A>G(p.Thr3349Ala) variant causes a missense change. The variant allele was found at a frequency of 0.0000601 in 1,614,034 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 Benign (★★★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000057 ( 0 hom. )

Consequence

BRCA2
NM_000059.4 missense

Scores

Clinical Significance

Benign reviewed by expert panel U:1B:17

Conservation

PhyloP100: 6.42

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.15431306).

BP6

Variant 13-32398558-A-G is Benign according to our data. Variant chr13-32398558-A-G is described in ClinVar as [Benign]. Clinvar id is 37719.Status of the report is reviewed_by_expert_panel, 3 stars. Variant chr13-32398558-A-G is described in Lovd as [Benign].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BRCA2	NM_000059.4 link	c.10045A>G	p.Thr3349Ala	missense_variant	Exon 27 of 27	ENST00000380152.8	NP_000050.3	P51587

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
BRCA2	ENST00000380152.8 link	c.10045A>G	p.Thr3349Ala	missense_variant	Exon 27 of 27	5	NM_000059.4	ENSP00000369497.3	P51587
BRCA2	ENST00000530893.7 link	c.9676A>G	p.Thr3226Ala	missense_variant	Exon 27 of 27	1		ENSP00000499438.2	A0A590UJI7
BRCA2	ENST00000614259.2 link	n.*2103A>G		non_coding_transcript_exon_variant	Exon 26 of 26	2		ENSP00000506251.1	A0A7P0TAP7
BRCA2	ENST00000614259.2 link	n.*2103A>G		3_prime_UTR_variant	Exon 26 of 26	2		ENSP00000506251.1	A0A7P0TAP7

Frequencies

GnomAD3 genomes

AF:

0.0000920

AC:

AN:

152196

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000524

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:

0.0000588

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000112

AC:

AN:

251090

Hom.:

AF XY:

0.000103

AC XY:

AN XY:

135728

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000550

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:

0.0000440

Gnomad OTH exome

AF:

0.000654

GnomAD4 exome

AF:

0.0000568

AC:

AN:

1461838

Hom.:

Cov.:

AF XY:

0.0000564

AC XY:

AN XY:

727210

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000470

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000504

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.0000920

AC:

AN:

152196

Hom.:

Cov.:

AF XY:

0.0000941

AC XY:

AN XY:

74360

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.000524

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.0000555

Hom.:

Bravo

AF:

0.000166

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000494

AC:

ClinVar

Significance: Benign

Submissions summary: Uncertain:1Benign:17

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Breast-ovarian cancer, familial, susceptibility to, 2

Uncertain:1Benign:4

Dec 01, 2023

All of Us Research Program, National Institutes of Health

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jan 08, 2008

Sharing Clinical Reports Project (SCRP)

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

May 29, 2002

Breast Cancer Information Core (BIC) (BRCA2)

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Aug 10, 2015

Evidence-based Network for the Interpretation of Germline Mutant Alleles (ENIGMA)

Significance: Benign

Review Status: reviewed by expert panel

Collection Method: curation

IARC class based on posterior probability from multifactorial likelihood analysis, thresholds for class as per Plon et al. 2008 (PMID: 18951446). Class 1 based on posterior probability = 0.0000000919 -

May 28, 2019

Mendelics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not specified

Benign:5

Mar 04, 2025

Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Sep 28, 2020

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.10045A>G (p.Thr3349Ala) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 0.00012 in 251290 control chromosomes. This frequency is not significantly higher than expected for a pathogenic variant in BRCA2 causing Hereditary Breast And Ovarian Cancer Syndrome (0.00012 vs 0.00075), allowing no conclusion about variant significance. c.10045A>G has been reported in the literature in individuals affected with Hereditary Breast and Ovarian Cancer without strong evidence of causality. One patient with the variant showed retention of the wild-type allele and loss of the allele harbouring the variant, suggesting the variant is not deleterious (Osorio_2002). Multifactorial models that incorporate family history, co-segregation, co-occurrence, and tumor pathology has predicted the variant to be likely neutral (Easton_2007, Lindor_2012). Multiple publications report experimental evidence evaluating an impact on protein function: splicing is not affected (Houdayer_2012) and HDR and cell survival assays show no difference from WT controls (Mesman_2018), altogether suggesting the variant has no effect on protein function. Seven clinical diagnostic laboratories and one expert panel (ENIGMA) have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All submitters classified the variant as benign (n=3)/likely benign (n=5). Several submitters cite overlapping evidence utilized in the context of this evaluation. Based on the evidence outlined above, the variant was classified as benign. -

Mar 28, 2016

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Likely benign

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: ExAC: 5/11516 Latino; ClinVar: 4 B/LB, 1 VUS -

Clinical Genetics Laboratory, Department of Pathology, Netherlands Cancer Institute

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome

Benign:4

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. -

Feb 04, 2016

Vantari Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Feb 03, 2021

Sema4, Sema4

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: curation

- -

Jun 08, 2015

Color Diagnostics, LLC DBA Color Health

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Benign:2

May 05, 2023

Quest Diagnostics Nichols Institute San Juan Capistrano

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Oct 24, 2019

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 25637381, 21120943, 26420498, 10755399, 18403564, 22505045, 24323938, 21520273, 20104584, 12955716, 11979449, 25682074, 25348012, 17924331, 21990134, 29988080, 32123317) -

Breast neoplasm

Benign:1

Jun 01, 2014

CSER _CC_NCGL, University of Washington

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: research

- -

Hereditary breast ovarian cancer syndrome

Benign:1

Jan 30, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.79

BayesDel_addAF

Benign

-0.076

BayesDel_noAF

Uncertain

0.010

CADD

Uncertain

DANN

Uncertain

1.0

Eigen

Pathogenic

0.76

Eigen_PC

Pathogenic

0.74

FATHMM_MKL

Pathogenic

0.98

M_CAP

Benign

0.080

MetaRNN

Benign

0.15

T;T

MetaSVM

Benign

-1.1

PrimateAI

Benign

0.44

PROVEAN

Benign

-1.4

N;N

REVEL

Uncertain

0.35

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0

D;D

Vest4

0.46

MPC

0.16

ClinPred

0.12

GERP RS

5.7

gMVP

0.63

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over