13-32340868-G-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6_Very_StrongBP7

The ENST00000530893.7(BRCA2):c.6144G>T(p.Val2048Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000112 in 152,342 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★★). Synonymous variant affecting the same amino acid position (i.e. V2048V) has been classified as Benign.

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000041 ( 1 hom. )

Failed GnomAD Quality Control

Consequence

BRCA2
ENST00000530893.7 synonymous

Scores

Clinical Significance

Likely benign reviewed by expert panel U:1B:16

Conservation

PhyloP100: -0.864

Publications

69 publications found

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 Gene-Disease associations (from GenCC):

breast-ovarian cancer, familial, susceptibility to, 2
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), ClinGen
Fanconi anemia complementation group D1
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen, G2P
pancreatic cancer, susceptibility to, 2
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
sarcoma
Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
hereditary breast ovarian cancer syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Fanconi anemia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
medulloblastoma
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

BRCA2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.89).

BP6

Variant 13-32340868-G-T is Benign according to our data. Variant chr13-32340868-G-T is described in ClinVar as Likely_benign. ClinVar VariationId is 182290.Status of the report is reviewed_by_expert_panel, 3 stars.

BP7

Synonymous conserved (PhyloP=-0.864 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000530893.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
BRCA2	NM_000059.4	MANE Select	c.6513G>T	p.Val2171Val	synonymous	Exon 11 of 27	NP_000050.3
BRCA2	NM_001432077.1		c.6513G>T	p.Val2171Val	synonymous	Exon 11 of 27	NP_001419006.1
BRCA2	NM_001406720.1		c.6513G>T	p.Val2171Val	synonymous	Exon 11 of 27	NP_001393649.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
BRCA2	ENST00000380152.8	TSL:5 MANE Select	c.6513G>T	p.Val2171Val	synonymous	Exon 11 of 27	ENSP00000369497.3
BRCA2	ENST00000544455.6	TSL:1	c.6513G>T	p.Val2171Val	synonymous	Exon 11 of 27	ENSP00000439902.1
BRCA2	ENST00000530893.7	TSL:1	c.6144G>T	p.Val2048Val	synonymous	Exon 11 of 27	ENSP00000499438.2

Frequencies

GnomAD3 genomes

AF:

0.000105

AC:

AN:

152224

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000338

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:

0.00316

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000501

AC:

AN:

239596

AF XY:

0.0000540

show subpopulations

Gnomad AFR exome

AF:

0.000379

Gnomad AMR exome

AF:

0.0000316

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000362

Gnomad OTH exome

AF:

0.000173

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000414

AC:

AN:

1448166

Hom.:

Cov.:

AF XY:

0.0000597

AC XY:

AN XY:

719734

show subpopulations

African (AFR)

AF:

0.000863

AC:

AN:

32448

American (AMR)

AF:

0.0000727

AC:

AN:

41240

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25530

East Asian (EAS)

AF:

0.00

AC:

AN:

39572

South Asian (SAS)

AF:

0.0000484

AC:

AN:

82642

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53152

Middle Eastern (MID)

AF:

0.000352

AC:

AN:

5674

European-Non Finnish (NFE)

AF:

0.00000812

AC:

AN:

1108152

Other (OTH)

AF:

0.000234

AC:

AN:

59756

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.478

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000112

AC:

AN:

152342

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74498

show subpopulations

African (AFR)

AF:

0.000361

AC:

AN:

41566

American (AMR)

AF:

0.00

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10630

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68034

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

15838

ClinVar

ClinVar submissions as Germline

Significance:Likely benign

Revision:reviewed by expert panel

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (4)

Hereditary cancer-predisposing syndrome (3)

Breast-ovarian cancer, familial, susceptibility to, 2 (2)

Hereditary breast ovarian cancer syndrome (2)

not specified (2)

BRCA2-related disorder (1)

Breast and/or ovarian cancer (1)

Familial cancer of breast (1)

Malignant tumor of breast (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.89

CADD

Benign

0.097

(source)

DANN

Benign

0.54

PhyloP100

-0.86

Mutation Taster

=100/0

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

ClinVar submissions as Germline

Computational scores

Splicing

Publications

Other links and lift over