13-32337580-T-C

Variant names:

Variant summary

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

The NM_000059.4(BRCA2):c.3225T>C(p.Ser1075Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000181 in 1,599,536 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 (★★★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

BRCA2
NM_000059.4 synonymous

Scores

Clinical Significance

Likely benign reviewed by expert panel U:1B:15

Conservation

PhyloP100: -0.411

Publications

6 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):

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: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
Fanconi anemia complementation group D1
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Ambry Genetics, ClinGen, Labcorp Genetics (formerly Invitae)
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 13-32337580-T-C is Benign according to our data. Variant chr13-32337580-T-C is described in ClinVar as Likely_benign. ClinVar VariationId is 184180.Status of the report is reviewed_by_expert_panel, 3 stars.

BP7

Synonymous conserved (PhyloP=-0.411 with no splicing effect.

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.3225T>C	p.Ser1075Ser	synonymous	Exon 11 of 27	NP_000050.3	A0A7P0T9D7
BRCA2	NM_001432077.1		c.3225T>C	p.Ser1075Ser	synonymous	Exon 11 of 27	NP_001419006.1	A0A7P0T9D7
BRCA2	NM_001406720.1		c.3225T>C	p.Ser1075Ser	synonymous	Exon 11 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.3225T>C	p.Ser1075Ser	synonymous	Exon 11 of 27	ENSP00000369497.3	P51587
BRCA2	ENST00000544455.6	TSL:1	c.3225T>C	p.Ser1075Ser	synonymous	Exon 11 of 27	ENSP00000439902.1	P51587
BRCA2	ENST00000530893.7	TSL:1	c.2856T>C	p.Ser952Ser	synonymous	Exon 11 of 27	ENSP00000499438.2	A0A590UJI7

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.000479

GnomAD2 exomes

AF:

0.0000248

AC:

AN:

241590

AF XY:

0.0000230

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000619

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000361

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000173

AC:

AN:

1447326

Hom.:

Cov.:

AF XY:

0.0000195

AC XY:

AN XY:

718210

show subpopulations

African (AFR)

AF:

0.0000306

AC:

AN:

32722

American (AMR)

AF:

0.0000945

AC:

AN:

42314

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25534

East Asian (EAS)

AF:

0.00

AC:

AN:

39476

South Asian (SAS)

AF:

0.00

AC:

AN:

83658

European-Finnish (FIN)

AF:

0.0000188

AC:

AN:

53130

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5688

European-Non Finnish (NFE)

AF:

0.0000163

AC:

AN:

1105120

Other (OTH)

AF:

0.0000168

AC:

AN:

59684

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.501

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:

0.0000263

AC:

AN:

152210

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74364

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41470

American (AMR)

AF:

0.00

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5202

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:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68024

Other (OTH)

AF:

0.000479

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.412

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.:

Bravo

AF:

0.0000227

EpiCase

AF:

0.0000546

EpiControl

AF:

0.0000593

ClinVar

ClinVar submissions as Germline

Significance:Likely benign

Revision:reviewed by expert panel

View on ClinVar

Pathogenic

VUS

Benign

Condition

Breast-ovarian cancer, familial, susceptibility to, 2 (4)

not provided (3)

Hereditary breast ovarian cancer syndrome (2)

Hereditary cancer-predisposing syndrome (2)

not specified (2)

BRCA2-related cancer predisposition (1)

Breast and/or ovarian cancer (1)

Fanconi anemia complementation group D1 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.89

CADD

Benign

0.54

(source)

DANN

Benign

0.48

PhyloP100

-0.41

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