rs80358932

Positions:

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBP6_Very_Strong

The NM_000059.4(BRCA2):c.7052C>G(p.Ala2351Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000719 in 1,613,572 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A2351S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000071 ( 1 hom. )

Consequence

BRCA2
NM_000059.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts U:1B:22O:1

Conservation

PhyloP100: 0.00500

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 -12 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.007881105).

BP6

Variant 13-32354905-C-G is Benign according to our data. Variant chr13-32354905-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 38081.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-32354905-C-G is described in Lovd as [Likely_benign]. Variant chr13-32354905-C-G is described in Lovd as [Benign].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BRCA2	NM_000059.4 linkuse as main transcript	c.7052C>G	p.Ala2351Gly	missense_variant	14/27	ENST00000380152.8	NP_000050.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BRCA2	ENST00000380152.8 linkuse as main transcript	c.7052C>G	p.Ala2351Gly	missense_variant	14/27	5	NM_000059.4	ENSP00000369497	A2

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

152178

Hom.:

Cov.:

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:

0.00212

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.000156

AC:

AN:

250774

Hom.:

AF XY:

0.000155

AC XY:

AN XY:

135624

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00207

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000712

AC:

104

AN:

1461276

Hom.:

Cov.:

AF XY:

0.0000729

AC XY:

AN XY:

726932

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00209

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.000315

GnomAD4 genome

AF:

0.0000788

AC:

AN:

152296

Hom.:

Cov.:

AF XY:

0.0000806

AC XY:

AN XY:

74468

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00212

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.0000945

ExAC

AF:

0.000132

AC:

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Uncertain:1Benign:22Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:7

Benign, criteria provided, single submitter	clinical testing	Quest Diagnostics Nichols Institute San Juan Capistrano	Jul 31, 2023	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Nov 25, 2020	This variant is associated with the following publications: (PMID: 21990134, 20104584, 21990165, 28664449, 27658390, 24728327, 16949048, 21218378, 18824701, 17100994, 18006916, 21520273, 28222693, 27124784, 27150160, 21120943, 18779604, 26435481, 29731985, 28678401, 27907908, 29020732, 30415210, 28111427, 30093976, 31131967, 31825140) -
Benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Mar 21, 2016	Variant Summary: The BRCA2 variant of interest causes a missense change involving a non-conserved nucleotide with 2/4 in silico programs predicting a "benign" outcome (SNPs&Go not captured here due to low reliability index), although these predictions have yet to be functionally assessed. The variant of interest was observed in a large, broad control population, ExAC with an allele frequency of 16/120976 (1/7561), predominantly in the East Asian cohort, 15/8648 (1/577), which significantly exceeds the maximal expected allele frequency for a pathogenic BRCA2 variant of 1/1333, therefore suggesting the variant of interest is a common polymorphism found in population(s) of East Asian origin. The variant of interest has been reported in affected individuals via publicatins, predominantly in those of Asian decent, although limited information is provided (i.e. lack of co-occurrence and co-segregation information being provided). The variant of interest has been reported by multiple reputable databases/clinical laboratories as "likely benign/benign." Additionally, the BIC database reports one individual with a pathogenic BRCA2 co-occurrence, c.1103C>A (p.Ser368Ter). Therefore, taking all lines of evidence into consideration, the variant of interest is classified as benign. -
Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics Laboratory, Department of Pathology, Netherlands Cancer Institute	-	- -
Likely benign, no assertion criteria provided	clinical testing	Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)	-	- -
Likely benign, no assertion criteria provided	clinical testing	Mayo Clinic Laboratories, Mayo Clinic	Feb 20, 2017	- -
Likely benign, no assertion criteria provided	clinical testing	Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+	-	- -

Breast-ovarian cancer, familial, susceptibility to, 2

Uncertain:1Benign:5

Likely benign, no assertion criteria provided	clinical testing	Pathway Genomics	Jul 24, 2014	- -
Benign, no assertion criteria provided	clinical testing	Sharing Clinical Reports Project (SCRP)	May 01, 2012	- -
Uncertain significance, no assertion criteria provided	clinical testing	Breast Cancer Information Core (BIC) (BRCA2)	May 29, 2002	- -
Likely benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Apr 27, 2017	This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -
Likely benign, criteria provided, single submitter	clinical testing	Genome Diagnostics Laboratory, University Medical Center Utrecht	Oct 09, 2014	- -
Likely benign, criteria provided, single submitter	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	Sep 21, 2015	- -

Hereditary cancer-predisposing syndrome

Benign:3

Likely benign, criteria provided, single submitter	curation	Sema4, Sema4	Jul 13, 2021	- -
Likely benign, criteria provided, single submitter	clinical testing	Ambry Genetics	Aug 14, 2018	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. -
Benign, criteria provided, single submitter	clinical testing	Color Diagnostics, LLC DBA Color Health	Dec 02, 2015	- -

not specified

Benign:2Other:1

not provided, no classification provided	reference population	ITMI	Sep 19, 2013	- -
Benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Dec 05, 2016	- -
Likely benign, criteria provided, single submitter	clinical testing	Genetic Services Laboratory, University of Chicago	Aug 27, 2019	- -

Breast and/or ovarian cancer

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario

Apr 19, 2021

- -

Fanconi anemia complementation group D1

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Apr 27, 2017

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Malignant tumor of breast

Benign:1

Benign, no assertion criteria provided

clinical testing

Department of Pathology and Laboratory Medicine, Sinai Health System

- -

Familial cancer of breast

Benign:1

Likely benign, no assertion criteria provided

literature only

Center for Precision Medicine, Meizhou People's Hospital

- -

Hereditary breast ovarian cancer syndrome

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 31, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.24

CADD

Benign

DANN

Uncertain

0.98

Eigen

Benign

-0.36

Eigen_PC

Benign

-0.44

FATHMM_MKL

Benign

0.11

M_CAP

Uncertain

0.10

MetaRNN

Benign

0.0079

T;T

MetaSVM

Benign

-0.76

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.20

PROVEAN

Benign

-1.1

N;N

REVEL

Uncertain

0.41

Sift

Uncertain

0.011

D;D

Sift4G

Benign

0.082

T;T

Vest4

0.21

MutPred

0.19

Gain of disorder (P = 0.0561);Gain of disorder (P = 0.0561);

MVP

0.88

MPC

0.059

ClinPred

0.072

GERP RS

2.0

gMVP

0.17

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