rs80359218

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP6

The NM_000059.4(BRCA2):​c.9454G>A​(p.Glu3152Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000123 in 1,461,802 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

BRCA2
NM_000059.4 missense

Scores

11
5

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:8

Conservation

PhyloP100: 3.79
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 Likely_benign. Variant got -1 ACMG points.

BP6
Variant 13-32394886-G-A is Benign according to our data. Variant chr13-32394886-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 52838.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=7, Uncertain_significance=3}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BRCA2NM_000059.4 linkc.9454G>A p.Glu3152Lys missense_variant Exon 25 of 27 ENST00000380152.8 NP_000050.3 P51587

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BRCA2ENST00000380152.8 linkc.9454G>A p.Glu3152Lys missense_variant Exon 25 of 27 5 NM_000059.4 ENSP00000369497.3 P51587
BRCA2ENST00000530893.7 linkc.9085G>A p.Glu3029Lys missense_variant Exon 25 of 27 1 ENSP00000499438.2 A0A590UJI7
BRCA2ENST00000614259.2 linkn.*1512G>A non_coding_transcript_exon_variant Exon 24 of 26 2 ENSP00000506251.1 A0A7P0TAP7
BRCA2ENST00000614259 linkn.*1512G>A 3_prime_UTR_variant Exon 24 of 25 2 ENSP00000506251.1 A0A7P0TAP7

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000557
AC:
14
AN:
251250
Hom.:
0
AF XY:
0.0000442
AC XY:
6
AN XY:
135780
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000405
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000123
AC:
18
AN:
1461802
Hom.:
0
Cov.:
31
AF XY:
0.0000110
AC XY:
8
AN XY:
727196
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.000358
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:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.0000227
ExAC
AF:
0.0000659
AC:
8

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:4Benign:8
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:2Benign:2
Dec 14, 2020
Mayo Clinic Laboratories, Mayo Clinic
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

May 25, 2022
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Nov 03, 2017
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 25382762, 17899372, 19043619, 31131967, 29394989, 29884841) -

Jan 28, 2022
Revvity Omics, Revvity
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Breast-ovarian cancer, familial, susceptibility to, 2 Uncertain:1Benign:2
May 29, 2002
Breast Cancer Information Core (BIC) (BRCA2)
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Jul 10, 2023
All of Us Research Program, National Institutes of Health
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jul 25, 2012
Sharing Clinical Reports Project (SCRP)
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Uncertain:1Benign:2
Aug 09, 2021
Sema4, Sema4
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: curation

- -

Jun 21, 2017
Color Diagnostics, LLC DBA Color Health
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Aug 03, 2018
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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. -

not specified Benign:1
Feb 06, 2023
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: BRCA2 c.9454G>A (p.Glu3152Lys) results in a conservative amino acid change located in the BRCA2, OB3 domain of 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 5.6e-05 in 251250 control chromosomes, predominantly at a frequency of 0.00041 within the Latino subpopulation in the gnomAD database. This frequency is not significantly higher than expected for a pathogenic variant in BRCA2 causing Hereditary Breast And Ovarian Cancer Syndrome (5.6e-05 vs 0.00075), allowing no conclusion about variant significance. To our knowledge, no occurrence of c.9454G>A in individuals affected with Hereditary Breast And Ovarian Cancer Syndrome has been reported. The variant was reported to have similar HDR activity compared to wild-type in three independently published studies, evidence supporting no damaging effect of this variant (Hart_2018, Guidugli_2018, Richardson_2021). HDR assays qualify as a recognized gold standard on the basis of updated guidance provided by the ClinGen Sequence Variant Interpretation (SVI) working group. Seven clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation, five classify as likely benign while two classify as VUS. Based on the evidence outlined above, the variant was classified as likely benign. -

Hereditary breast ovarian cancer syndrome Benign:1
Jan 29, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.0064
T
BayesDel_noAF
Uncertain
0.080
CADD
Benign
23
DANN
Uncertain
1.0
Eigen
Uncertain
0.32
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Uncertain
0.91
D
M_CAP
Uncertain
0.20
D
MetaRNN
Uncertain
0.52
D;D
MetaSVM
Uncertain
0.33
D
PrimateAI
Benign
0.42
T
PROVEAN
Benign
-0.98
N;N
REVEL
Uncertain
0.63
Sift
Uncertain
0.0030
D;D
Sift4G
Uncertain
0.0080
D;D
Vest4
0.54
MutPred
0.54
Gain of ubiquitination at E3152 (P = 0.0138);Gain of ubiquitination at E3152 (P = 0.0138);
MVP
0.93
MPC
0.13
ClinPred
0.54
D
GERP RS
4.1
gMVP
0.57

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: rs80359218; hg19: chr13-32969023; API