chr13-32337458-G-T

Variant names:

Variant summary

Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong

The NM_000059.4(BRCA2):c.3103G>T(p.Glu1035*) variant causes a stop gained change. The variant allele was found at a frequency of 0.00000496 in 1,612,512 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

BRCA2
NM_000059.4 stop_gained

Scores

Clinical Significance

Pathogenic reviewed by expert panel P:21

Conservation

PhyloP100: 7.02

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 Pathogenic. Variant got 16 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

PP5

Variant 13-32337458-G-T is Pathogenic according to our data. Variant chr13-32337458-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 51400.Status of the report is reviewed_by_expert_panel, 3 stars. Variant chr13-32337458-G-T is described in Lovd as [Pathogenic]. Variant chr13-32337458-G-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BRCA2	NM_000059.4 link	c.3103G>T	p.Glu1035*	stop_gained	Exon 11 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.3103G>T	p.Glu1035*	stop_gained	Exon 11 of 27	5	NM_000059.4	ENSP00000369497.3	P51587
BRCA2	ENST00000530893.7 link	c.2734G>T	p.Glu912*	stop_gained	Exon 11 of 27	1		ENSP00000499438.2	A0A590UJI7
BRCA2	ENST00000614259.2 link	n.3103G>T		non_coding_transcript_exon_variant	Exon 10 of 26	2		ENSP00000506251.1	A0A7P0TAP7

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152110

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000401

AC:

AN:

249486

Hom.:

AF XY:

0.00000742

AC XY:

AN XY:

134848

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000886

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1460402

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

726448

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000540

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152110

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74296

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:21

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Breast-ovarian cancer, familial, susceptibility to, 2

Pathogenic:6

Feb 20, 2004

Breast Cancer Information Core (BIC) (BRCA2)

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Apr 22, 2016

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

Significance: Pathogenic

Review Status: reviewed by expert panel

Collection Method: curation

Variant allele predicted to encode a truncated non-functional protein. -

Dec 11, 2019

HudsonAlpha Institute for Biotechnology, HudsonAlpha Institute for Biotechnology

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: research

- -

Sep 06, 2016

Counsyl

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Dec 03, 2013

Sharing Clinical Reports Project (SCRP)

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Oct 02, 2015

Consortium of Investigators of Modifiers of BRCA1/2 (CIMBA), c/o University of Cambridge

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Hereditary breast ovarian cancer syndrome

Pathogenic:4

Jan 31, 2014

Research Molecular Genetics Laboratory, Women's College Hospital, University of Toronto

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: research

- -

Jul 24, 2017

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant summary: The BRCA2 c.3103G>T (p.Glu1035X) variant (legacy name 3331G>T) results in a premature termination codon, predicted to cause a truncated or absent BRCA2 protein due to nonsense mediated decay, which are commonly known mechanisms for disease. Truncations downstream of this position have been classified as pathogenic by our laboratory (e.g. p.Gln1063X, p.Gln1129X, and p.Arg2520X). This variant is absent in 120800 control chromosomes from ExAC. This variant has been reported in several HBOC patients in literature (Malone_2006, Ramus_2007, Conner_2014, Tung_2015, Ellingson_2015, Susswein_2015, Meric-Bernstam_2016). In addition, several clinical diagnostic laboratories/reputable databases have classified this variant as pathogenic. Taken together, this variant is classified as pathogenic. -

Dec 28, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change creates a premature translational stop signal (p.Glu1035*) in the BRCA2 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in BRCA2 are known to be pathogenic (PMID: 20104584). This variant is present in population databases (rs80358556, gnomAD 0.0009%). This premature translational stop signal has been observed in individual(s) with breast and/or ovarian cancer and glioblastoma (PMID: 16912212, 17688236, 26296701, 26681312, 26787237). ClinVar contains an entry for this variant (Variation ID: 51400). For these reasons, this variant has been classified as Pathogenic. -

Oct 14, 2019

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.Glu1035X variant in BRCA2 has been reported in at least 8 individuals with BRCA2-related cancers (Ramus 2007, Tung 2015, Meric-Bernstam 2016, Susswein 2016, BIC database). It has also been identified in 1/112890 European chromosomes by gnomAD (http://gnomad.broadinstitute.org); however, this frequency is low enough to be consistent with the frequency of hereditary breast and ovarian cancer (HBOC) in the general population. This variant leads to a premature termination codon at position 1035, which is predicted to lead to a truncated or absent protein. Loss of function of the BRCA2 gene is an established disease mechanism in autosomal dominant hereditary breast and ovarian cancer syndrome (HBOC). Additionally, this variant was classified as Pathogenic on Apr 22, 2016 by the ClinGen-approved ENIGMA expert panel (Variation ID: 51400). In summary, this variant meets criteria to be classified as pathogenic for autosomal dominant HBOC. ACMG/AMP Criteria applied: PVS1, PM2, PS4_Moderate. -

not provided

Pathogenic:3

Apr 30, 2021

Revvity Omics, Revvity

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Apr 12, 2022

GeneDx

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Nonsense variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss-of-function is a known mechanism of disease; Observed in individuals with BRCA2-related cancers (Ramus 2007, Ellingson 2015, Borazanci 2020); Not observed at a significant frequency in large population cohorts (gnomAD); Truncating variants in this gene are considered pathogenic by a well-established clinical consortium and/or database; Also known as 3331G>T; This variant is associated with the following publications: (PMID: 17688236, 27150160, 28152038, 30720243, 26296701, 24333842, 26787237, 25186627, 25525159, 26681312, 26786923, 16912212, 29446198, 31391296, 33372952, 30787465, 33087929) -

Nov 25, 2020

Quest Diagnostics Nichols Institute San Juan Capistrano

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This nonsense variant causes the premature termination of BRCA2 protein synthesis, and is described in online databases as being pathogenic (ClinVar (http://www.ncbi.nlm.nih.gov/clinvar/), BRCA Exchange (http://brcaexchange.org/), EmVClass (http://www.egl-eurofins.com/emvclass/)). In addition, it has been reported in the published literature in multiple families and individuals affected with breast and/or ovarian cancer (PMIDs: 16912212 (2006), 17688236 (2007), 25186627 (2015), 26296701 (2015), and 26681312 (2015)), as well as an individual with glioblastoma (PMID: 26787237 (2016)). The frequency of this variant in the general population is consistent with pathogenicity. Based on the available information, this variant is classified as pathogenic. -

Hereditary cancer-predisposing syndrome

Pathogenic:3

Aug 12, 2024

Color Diagnostics, LLC DBA Color Health

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant changes 1 nucleotide in exon 11 of the BRCA2 gene, creating a premature translation stop signal. This variant is expected to result in an absent or non-functional protein product. This variant has been detected in at least eight individuals affected with breast and ovarian cancer (PMID: 16912212, 17688236, 24333842, 25186627, 26296701, 26681312, 33471991, 34680387; Leiden Open Variation Database DB-ID BRCA2_002557; Color internal data) and one individual each affected with glioblastoma (PMID: 26787237) and prostate cancer (PMID: 33599307). A multifactorial analysis has reported a likelihood ratio based on personal and family history of 52.467 from log(LR)=1.719887733 (PMID: 31853058). This variant has been identified in 1/249486 chromosomes in the general population by the Genome Aggregation Database (gnomAD). Loss of BRCA2 function is a known mechanism of disease (clinicalgenome.org). Based on the available evidence, this variant is classified as Pathogenic. -

Dec 01, 2017

True Health Diagnostics

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Apr 27, 2022

Ambry Genetics

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.E1035* pathogenic mutation (also known as c.3103G>T), located in coding exon 10 of the BRCA2 gene, results from a G to T substitution at nucleotide position 3103. This changes the amino acid from a glutamic acid to a stop codon within coding exon 10. This mutation has been reported in multiple patients with breast and/or ovarian cancer (Malone KE et al. Cancer Res. 2006 Aug;66:8297-308; Ramus SJ et al. Hum. Mutat. 2007 Dec;28(12):1207-15; Tung N et al. Cancer 2015 Jan;121:25-33; Ellingson MS et al. Breast Cancer Res. Treat. 2015 Sep;153:435-43; Susswein LR et al. Genet. Med. 2016 Aug;18:823-32). It has also been reported in an individual with glioblastoma who had a family history of breast cancer (Meric-Bernstam F et al. Ann. Oncol. 2016 May;27:795-800). In addition to the clinical data presented in the literature, this alteration is expected to result in loss of function by premature protein truncation or nonsense-mediated mRNA decay. As such, this alteration is interpreted as a disease-causing mutation. -

not specified

Pathogenic:1

Oct 12, 2016

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

BRCA2-related cancer predisposition

Pathogenic:1

Aug 31, 2024

All of Us Research Program, National Institutes of Health

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant changes 1 nucleotide in exon 11 of the BRCA2 gene, creating a premature translation stop signal. This variant is expected to result in an absent or non-functional protein product. This variant has been detected in at least eight individuals affected with breast and ovarian cancer (PMID: 16912212, 17688236, 24333842, 25186627, 26296701, 26681312, 33471991, 34680387; Leiden Open Variation Database DB-ID BRCA2_002557; Color internal data) and one individual each affected with glioblastoma (PMID: 26787237) and prostate cancer (PMID: 33599307). This variant has been identified in 1/249486 chromosomes in the general population by the Genome Aggregation Database (gnomAD). Loss of BRCA2 function is a known mechanism of disease (clinicalgenome.org). Based on the available evidence, this variant is classified as Pathogenic. -

BRCA2-related disorder

Pathogenic:1

Mar 28, 2024

PreventionGenetics, part of Exact Sciences

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: clinical testing

The BRCA2 c.3103G>T variant is predicted to result in premature protein termination (p.Glu1035*). This variant has predominantly been reported in individuals with personal and family histories of ovarian and breast cancer. However, it has also been reported in a single individual with glioblastoma and a family history of breast cancer (Ramus et al. 2007. PubMed ID: 17688236, Table S1; Tung et al. 2014. PubMed ID: 25186627, Supplement; Susswein et al. 2015. PubMed ID: 26681312, Table S1; Meric-Bernstam et al. 2016. PubMed ID: 26787237, Table S3; Rebbeck et al. 2018. PubMed ID: 29446198, Table S1). This variant is reported in 1 of ~249,000 alleles in gnomAD and is interpreted as pathogenic in ClinVar (https://www.ncbi.nlm.nih.gov/clinvar/variation/51400/). Nonsense variants in BRCA2 are expected to be pathogenic. This variant is interpreted as pathogenic. -

Rhabdomyosarcoma

Pathogenic:1

Sep 01, 2020

Human Genome Sequencing Center Clinical Lab, Baylor College of Medicine

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: provider interpretation

- -

Familial cancer of breast

Pathogenic:1

Mar 19, 2024

Baylor Genetics

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.62

BayesDel_noAF

Pathogenic

0.66

CADD

Pathogenic

DANN

Uncertain

1.0

Eigen

Pathogenic

1.1

Eigen_PC

Pathogenic

0.96

FATHMM_MKL

Pathogenic

0.99

Vest4

0.83

GERP RS

5.3

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