rs35029074

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_000059.4(BRCA2):​c.6323G>A​(p.Arg2108His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00126 in 1,608,966 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2108C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0024 ( 2 hom., cov: 33)
Exomes 𝑓: 0.0011 ( 2 hom. )

Consequence

BRCA2
NM_000059.4 missense

Scores

15

Clinical Significance

Benign reviewed by expert panel U:1B:36

Conservation

PhyloP100: 0.0720
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 Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0033438802).
BP6
Variant 13-32340678-G-A is Benign according to our data. Variant chr13-32340678-G-A is described in ClinVar as [Benign]. Clinvar id is 38037.Status of the report is reviewed_by_expert_panel, 3 stars. Variant chr13-32340678-G-A is described in Lovd as [Likely_benign]. Variant chr13-32340678-G-A is described in Lovd as [Benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4_exome allele frequency = 0.00114 (1661/1456724) while in subpopulation AFR AF= 0.00688 (227/33010). AF 95% confidence interval is 0.00614. There are 2 homozygotes in gnomad4_exome. There are 757 alleles in male gnomad4_exome subpopulation. Median coverage is 46. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 2 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BRCA2NM_000059.4 linkc.6323G>A p.Arg2108His missense_variant Exon 11 of 27 ENST00000380152.8 NP_000050.3 P51587

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BRCA2ENST00000380152.8 linkc.6323G>A p.Arg2108His missense_variant Exon 11 of 27 5 NM_000059.4 ENSP00000369497.3 P51587
BRCA2ENST00000530893.7 linkc.5954G>A p.Arg1985His missense_variant Exon 11 of 27 1 ENSP00000499438.2 A0A590UJI7
BRCA2ENST00000614259.2 linkn.6323G>A non_coding_transcript_exon_variant Exon 10 of 26 2 ENSP00000506251.1 A0A7P0TAP7

Frequencies

GnomAD3 genomes
AF:
0.00243
AC:
370
AN:
152124
Hom.:
2
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00647
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00196
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00100
Gnomad OTH
AF:
0.000956
GnomAD3 exomes
AF:
0.00116
AC:
286
AN:
245876
Hom.:
3
AF XY:
0.000992
AC XY:
132
AN XY:
133104
show subpopulations
Gnomad AFR exome
AF:
0.00825
Gnomad AMR exome
AF:
0.000960
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000683
Gnomad FIN exome
AF:
0.0000465
Gnomad NFE exome
AF:
0.00105
Gnomad OTH exome
AF:
0.000504
GnomAD4 exome
AF:
0.00114
AC:
1661
AN:
1456724
Hom.:
2
Cov.:
46
AF XY:
0.00104
AC XY:
757
AN XY:
724506
show subpopulations
Gnomad4 AFR exome
AF:
0.00688
Gnomad4 AMR exome
AF:
0.000991
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000471
Gnomad4 FIN exome
AF:
0.0000188
Gnomad4 NFE exome
AF:
0.00116
Gnomad4 OTH exome
AF:
0.00155
GnomAD4 genome
AF:
0.00244
AC:
371
AN:
152242
Hom.:
2
Cov.:
33
AF XY:
0.00223
AC XY:
166
AN XY:
74438
show subpopulations
Gnomad4 AFR
AF:
0.00648
Gnomad4 AMR
AF:
0.00196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000386
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00100
Gnomad4 OTH
AF:
0.000946
Alfa
AF:
0.000960
Hom.:
0
Bravo
AF:
0.00291
TwinsUK
AF:
0.00135
AC:
5
ALSPAC
AF:
0.00130
AC:
5
ESP6500AA
AF:
0.00681
AC:
30
ESP6500EA
AF:
0.00151
AC:
13
ExAC
AF:
0.00127
AC:
154
EpiCase
AF:
0.00136
EpiControl
AF:
0.00172

ClinVar

Significance: Benign
Submissions summary: Uncertain:1Benign:36
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

Breast-ovarian cancer, familial, susceptibility to, 2 Uncertain:1Benign:11
Jul 28, 2017
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 02, 2014
Counsyl
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: literature only

- -

Mar 08, 2018
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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. -

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 = 0.000000000000372 -

-
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Apr 21, 2016
Michigan Medical Genetics Laboratories, University of Michigan
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jul 24, 2014
Pathway Genomics
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

- -

Sep 21, 2015
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jul 07, 2023
KCCC/NGS Laboratory, Kuwait Cancer Control Center
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Oct 10, 2012
Sharing Clinical Reports Project (SCRP)
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

May 28, 2019
Mendelics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:10
Dec 23, 2013
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Apr 18, 2017
Cancer Genetics and Genomics Laboratory, British Columbia Cancer Agency
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

May 11, 2016
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: 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: ClinVar: Ben by expert panel -

-
Department of Pathology and Laboratory Medicine, Sinai Health System
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

The p.Arg2108His variant has been reported in the literature in 14/19788 proband chromosomes in individuals with breast cancer, prostate cancer and cutaneous melanoma (Borg_2010, Caux-Moncoutier_2009, Caux-Moncoutier_2011,de Sanjose_2003, Diez_2003, Gomez-Garcia_2005, Kote-Jarai_2011, Lindor_2012, Monnerat_2007). It was not, however, found in any of the 100 control chromosomes tested. It is listed in the dbSNP database as coming from a "clinical source" (ID#:rs35029074) with a global minor allele frequency (MAF) of 0.001 (1000 Genomes), increasing the likelihood that this is a low frequency benign variant. The variant was also identified in the LOVD (X2), UMD (X68), Exome server, BIC (X127) and BOCs databases; in the latter database it was classified as a benign variant with an ACMG 5 designation. In the UMD database, this variant has been identified in nine individuals with a second pathogenic in BRCA1 [c.6078dup (p.Arg2027LysfsX22), c.1440_1441delCA (p.Ile481SerfsX32)] and BRCA2 [c.IVS16+6T>C (c.4986+6T>C), c.442_4357del (p.Glu149TyrfsX2), c.4485_4675del (p.Ser1496GlyfsX14), c.2679_2682delGAAA (p.Lys893AsnfsX106)], thereby increasing the likelihood that this variant does not have clinical significance. This residue is not conserved in mammals and the variant amino acid Histidine (His) is present in chicken at this position, increasing the likelihood that an alteration to this residue may not have functional significance. Computational analyses (PolyPhen, SIFT, AlignGVGD) do not predict any effect on the protein function, however, this information is not predictive enough to assume pathogenicity. In summary, based on the above information, this variant is classified as benign. -

Dec 11, 2014
Eurofins Ntd Llc (ga)
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Aug 07, 2018
Genetic Services Laboratory, University of Chicago
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

- -

Mar 04, 2025
Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Clinical Genetics Laboratory, Department of Pathology, Netherlands Cancer Institute
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

not provided Benign:4
Feb 20, 2017
Mayo Clinic Laboratories, Mayo Clinic
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Jun 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

BRCA2: BP4, BS2 -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Oct 22, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Benign:4
Dec 08, 2017
True Health Diagnostics
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

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. -

Mar 23, 2020
Sema4, Sema4
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: curation

- -

Mar 09, 2015
Color Diagnostics, LLC DBA Color Health
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary breast ovarian cancer syndrome Benign:3
Nov 01, 2021
Genetics Program, Instituto Nacional de Cancer
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: research

- -

Apr 19, 2022
National Health Laboratory Service, Universitas Academic Hospital and University of the Free State
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Feb 04, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Breast and/or ovarian cancer Benign:1
Jan 05, 2016
CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Fanconi anemia complementation group D1 Benign:1
Mar 08, 2018
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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. -

Breast neoplasm Benign:1
Jun 01, 2014
CSER _CC_NCGL, University of Washington
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: research

- -

BRCA2-related disorder Benign:1
May 23, 2019
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.072
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.17
CADD
Benign
9.2
DANN
Benign
0.95
Eigen
Benign
-0.80
Eigen_PC
Benign
-0.79
FATHMM_MKL
Benign
0.15
N
MetaRNN
Benign
0.0033
T;T
MetaSVM
Benign
-0.89
T
PrimateAI
Benign
0.21
T
PROVEAN
Benign
-0.24
N;N
REVEL
Benign
0.20
Sift
Benign
0.15
T;T
Sift4G
Benign
0.15
T;T
Vest4
0.32
MVP
0.83
MPC
0.027
ClinPred
0.0025
T
GERP RS
2.8
gMVP
0.21

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: rs35029074; hg19: chr13-32914815; COSMIC: COSV104430671; API