rs747516635

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.4410A>C​(p.Ile1470Ile) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000621 in 1,610,150 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 0.000033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

BRCA2
NM_000059.4 synonymous

Scores

2

Clinical Significance

Likely benign reviewed by expert panel B:6

Conservation

PhyloP100: 0.860

Publications

0 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

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=-0.86).
BP6
Variant 13-32338765-A-C is Benign according to our data. Variant chr13-32338765-A-C is described in ClinVar as Likely_benign. ClinVar VariationId is 187580.Status of the report is reviewed_by_expert_panel, 3 stars.
BP7
Synonymous conserved (PhyloP=0.86 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

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BRCA2
NM_000059.4
MANE Select
c.4410A>Cp.Ile1470Ile
synonymous
Exon 11 of 27NP_000050.3
BRCA2
NM_001432077.1
c.4410A>Cp.Ile1470Ile
synonymous
Exon 11 of 27NP_001419006.1
BRCA2
NM_001406720.1
c.4410A>Cp.Ile1470Ile
synonymous
Exon 11 of 27NP_001393649.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BRCA2
ENST00000380152.8
TSL:5 MANE Select
c.4410A>Cp.Ile1470Ile
synonymous
Exon 11 of 27ENSP00000369497.3
BRCA2
ENST00000544455.6
TSL:1
c.4410A>Cp.Ile1470Ile
synonymous
Exon 11 of 27ENSP00000439902.1
BRCA2
ENST00000530893.7
TSL:1
c.4041A>Cp.Ile1347Ile
synonymous
Exon 11 of 27ENSP00000499438.2

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152200
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000121
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000241
AC:
6
AN:
248528
AF XY:
0.0000372
show subpopulations
Gnomad AFR exome
AF:
0.000313
Gnomad AMR exome
AF:
0.0000292
Gnomad ASJ exome
AF:
0.00
Gnomad EAS 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:
0.00000343
AC:
5
AN:
1457950
Hom.:
0
Cov.:
35
AF XY:
0.00000552
AC XY:
4
AN XY:
724552
show subpopulations
African (AFR)
AF:
0.000120
AC:
4
AN:
33386
American (AMR)
AF:
0.0000225
AC:
1
AN:
44482
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26070
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39628
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85216
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53314
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5754
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1109842
Other (OTH)
AF:
0.00
AC:
0
AN:
60258
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.455
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000329
AC:
5
AN:
152200
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74360
show subpopulations
African (AFR)
AF:
0.000121
AC:
5
AN:
41464
American (AMR)
AF:
0.00
AC:
0
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68014
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.515
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000186
Hom.:
0
Bravo
AF:
0.0000340

ClinVar

ClinVar submissions as Germline

Significance:Likely benign
Revision:reviewed by expert panel
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
2
not provided (2)
-
-
1
BRCA2-related disorder (1)
-
-
1
Breast-ovarian cancer, familial, susceptibility to, 2 (1)
-
-
1
Hereditary breast ovarian cancer syndrome (1)
-
-
1
Hereditary cancer-predisposing syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.86
CADD
Benign
2.6
DANN
Benign
0.68
PhyloP100
0.86

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

Other links and lift over

dbSNP: rs747516635; hg19: chr13-32912902; API