13-32398634-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_StrongBP6_Very_Strong

The NM_000059.4(BRCA2):c.10121C>T(p.Thr3374Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000125 in 1,614,182 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 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. T3374A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00057 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000078 ( 1 hom. )

Consequence

BRCA2
NM_000059.4 missense

Scores

Clinical Significance

Benign reviewed by expert panel U:1B:16O:1

Conservation

PhyloP100: -0.210

Publications

20 publications found

Variant links:

COSMIC-nc: COSV66337402

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):

BRCA2-related cancer predisposition
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
breast-ovarian cancer, familial, susceptibility to, 2
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
Fanconi anemia complementation group D1
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), ClinGen, Ambry Genetics
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 -12 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.006697923).

BP6

Variant 13-32398634-C-T is Benign according to our data. Variant chr13-32398634-C-T is described in ClinVar as Benign. ClinVar VariationId is 51047.Status of the report is reviewed_by_expert_panel, 3 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000059.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
BRCA2	NM_000059.4	MANE Select	c.10121C>T	p.Thr3374Ile	missense	Exon 27 of 27	NP_000050.3	A0A7P0T9D7
BRCA2	NM_001432077.1		c.10121C>T	p.Thr3374Ile	missense	Exon 27 of 27	NP_001419006.1	A0A7P0T9D7
BRCA2	NM_001406720.1		c.10070C>T	p.Thr3357Ile	missense	Exon 27 of 27	NP_001393649.1	A0A8V8TPZ2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
BRCA2	ENST00000380152.8	TSL:5 MANE Select	c.10121C>T	p.Thr3374Ile	missense	Exon 27 of 27	ENSP00000369497.3	P51587
BRCA2	ENST00000544455.6	TSL:1	c.10121C>T	p.Thr3374Ile	missense	Exon 27 of 27	ENSP00000439902.1	P51587
BRCA2	ENST00000530893.7	TSL:1	c.9752C>T	p.Thr3251Ile	missense	Exon 27 of 27	ENSP00000499438.2	A0A590UJI7

Frequencies

GnomAD3 genomes

AF:

0.000572

AC:

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00203

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000259

AC:

AN:

251258

AF XY:

0.000177

show subpopulations

Gnomad AFR exome

AF:

0.00277

Gnomad AMR exome

AF:

0.000434

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.000653

GnomAD4 exome

AF:

0.0000780

AC:

114

AN:

1461862

Hom.:

Cov.:

AF XY:

0.0000729

AC XY:

AN XY:

727232

show subpopulations

African (AFR)

AF:

0.00257

AC:

AN:

33478

American (AMR)

AF:

0.000403

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111998

Other (OTH)

AF:

0.000149

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.454

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.000571

AC:

AN:

152320

Hom.:

Cov.:

AF XY:

0.000322

AC XY:

AN XY:

74490

show subpopulations

African (AFR)

AF:

0.00202

AC:

AN:

41568

American (AMR)

AF:

0.000131

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68020

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

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:

0.000358

Hom.:

Bravo

AF:

0.000812

ESP6500AA

AF:

0.00363

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000362

AC:

ClinVar

ClinVar submissions

Significance:Benign

Revision:reviewed by expert panel

View on ClinVar

Pathogenic

VUS

Benign

Condition

Breast-ovarian cancer, familial, susceptibility to, 2 (6)

Hereditary cancer-predisposing syndrome (3)

Hereditary breast ovarian cancer syndrome (2)

not provided (2)

not specified (3)

BRCA2-related disorder (1)

Breast and/or ovarian cancer (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.62

BayesDel_noAF

Benign

-0.67

CADD

Benign

(source)

DANN

Benign

0.96

Eigen

Benign

-0.99

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.089

M_CAP

Uncertain

0.14

MetaRNN

Benign

0.0067

MetaSVM

Benign

-0.92

PhyloP100

-0.21

PrimateAI

Benign

0.24

PROVEAN

Benign

-1.2

REVEL

Benign

0.010

Sift

Uncertain

0.0070

Sift4G

Uncertain

0.060

Vest4

0.072

MVP

0.73

MPC

0.15

ClinPred

0.032

GERP RS

1.5

gMVP

0.32

Mutation Taster

=98/2

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

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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

Computational scores

Splicing

Publications

Other links and lift over