rs80358645

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The NM_000059.4(BRCA2):​c.3962A>G​(p.Asp1321Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000167 in 1,433,154 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

BRCA2
NM_000059.4 missense

Scores

1
15

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:8

Conservation

PhyloP100: 1.80
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 -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.1315169).
BP6
Variant 13-32338317-A-G is Benign according to our data. Variant chr13-32338317-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 51574.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=7, Uncertain_significance=2}. Variant chr13-32338317-A-G is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BRCA2NM_000059.4 linkc.3962A>G p.Asp1321Gly 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.3962A>G p.Asp1321Gly missense_variant Exon 11 of 27 5 NM_000059.4 ENSP00000369497.3 P51587
BRCA2ENST00000530893.7 linkc.3593A>G p.Asp1198Gly missense_variant Exon 11 of 27 1 ENSP00000499438.2 A0A590UJI7
BRCA2ENST00000614259.2 linkn.3962A>G non_coding_transcript_exon_variant Exon 10 of 26 2 ENSP00000506251.1 A0A7P0TAP7

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000221
AC:
5
AN:
225896
Hom.:
0
AF XY:
0.0000163
AC XY:
2
AN XY:
122698
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:
0.0000475
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000167
AC:
24
AN:
1433154
Hom.:
0
Cov.:
35
AF XY:
0.0000155
AC XY:
11
AN XY:
710824
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000218
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Alfa
AF:
0.0000283
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.00000825
AC:
1

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:8
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:2Benign:1
Jun 03, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Feb 25, 2015
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is denoted BRCA2 c.3962A>G at the cDNA level, p.Asp1321Gly (D1321G) at the protein level, and results in the change of an Aspartic Acid to a Glycine (GAT>GGT). Using alternate nomenclature, this variant would be defined as BRCA2 4190A>G. This variant has not, to our knowledge, been published in the literature as pathogenic or benign. BRCA2 Asp1321Gly was not observed in approximately 6,500 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in these populations. Since Aspartic Acid and Glycine differ in polarity, charge, size or other properties, this is considered a non-conservative amino acid substitution. BRCA2 Asp1321Gly occurs at a position that is moderately conserved across species and is not located in a known functional domain (UniProt, Borg 2010). In silico analyses predict that this variant is unlikely to alter protein structure or function. Based on currently available information, it is unclear whether BRCA2 Asp1321Gly is pathogenic or benign. We consider it to be a variant of uncertain significance. -

Nov 03, 2021
Institute for Clinical Genetics, University Hospital TU Dresden, University Hospital TU Dresden
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Breast-ovarian cancer, familial, susceptibility to, 2 Uncertain:1Benign:2
Feb 05, 2024
All of Us Research Program, National Institutes of Health
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Mar 02, 2020
BRCAlab, Lund University
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Dec 23, 2003
Breast Cancer Information Core (BIC) (BRCA2)
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Benign:3
Dec 08, 2022
Color Diagnostics, LLC DBA Color Health
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Mar 23, 2023
University of Washington Department of Laboratory Medicine, University of Washington
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: curation

Missense variant in a coldspot region where missense variants are very unlikely to be pathogenic (PMID:31911673). -

Nov 11, 2024
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
Mar 04, 2025
Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary breast ovarian cancer syndrome Benign:1
Dec 20, 2024
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
0.088
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.36
CADD
Benign
16
DANN
Benign
0.95
Eigen
Benign
-0.78
Eigen_PC
Benign
-0.78
FATHMM_MKL
Benign
0.29
N
M_CAP
Benign
0.053
D
MetaRNN
Benign
0.13
T;T
MetaSVM
Benign
-0.90
T
PrimateAI
Benign
0.27
T
PROVEAN
Uncertain
-4.0
D;D
REVEL
Benign
0.22
Sift
Benign
0.12
T;T
Sift4G
Benign
0.24
T;T
Vest4
0.41
MutPred
0.26
Loss of stability (P = 0.0026);Loss of stability (P = 0.0026);
MVP
0.76
MPC
0.025
ClinPred
0.046
T
GERP RS
1.8
gMVP
0.11

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: rs80358645; hg19: chr13-32912454; API