rs9590940
Variant summary
Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2
The NM_000059.4(BRCA2):c.8460A>C(p.Val2820Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00215 in 1,613,722 control chromosomes in the GnomAD database, including 65 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★★).
Frequency
Consequence
NM_000059.4 synonymous
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -21 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
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BRCA2 | ENST00000380152.8 | c.8460A>C | p.Val2820Val | synonymous_variant | Exon 19 of 27 | 5 | NM_000059.4 | ENSP00000369497.3 | ||
BRCA2 | ENST00000530893.7 | c.8091A>C | p.Val2697Val | synonymous_variant | Exon 19 of 27 | 1 | ENSP00000499438.2 | |||
BRCA2 | ENST00000614259.2 | n.*518A>C | non_coding_transcript_exon_variant | Exon 18 of 26 | 2 | ENSP00000506251.1 | ||||
BRCA2 | ENST00000614259 | n.*518A>C | 3_prime_UTR_variant | Exon 18 of 25 | 2 | ENSP00000506251.1 |
Frequencies
GnomAD3 genomes AF: 0.0112 AC: 1701AN: 152166Hom.: 34 Cov.: 32
GnomAD3 exomes AF: 0.00311 AC: 781AN: 251400Hom.: 15 AF XY: 0.00240 AC XY: 326AN XY: 135880
GnomAD4 exome AF: 0.00121 AC: 1766AN: 1461438Hom.: 31 Cov.: 31 AF XY: 0.00105 AC XY: 761AN XY: 727078
GnomAD4 genome AF: 0.0112 AC: 1699AN: 152284Hom.: 34 Cov.: 32 AF XY: 0.0109 AC XY: 812AN XY: 74476
ClinVar
Submissions by phenotype
not specified Benign:10
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The p.Val2820Val variant is not expected to have clinical significance because it does not result in a change of amino acid, is not located near a splice site, is not well conserved and is recorded as a common polymorphism in public databases. dbSNPID: rs9590940. In particular it is observed at a frequency as high as 4% in A.A population from the EPS server. Myriad reports this variant as a polymorphism (personal communication) and the UMD database recorded this variant 37x and it co-occurred with a second pathogenic variant in either BRCA1 or 2 seven times. In summary, this variant is classified as benign. -
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Breast-ovarian cancer, familial, susceptibility to, 2 Uncertain:1Benign:6
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This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
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Class 1 not pathogenic based on frequency >1% in an outbred sampleset. Frequency 0.04675 (African), derived from 1000 genomes (2012-04-30). -
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Hereditary breast ovarian cancer syndrome Benign:4
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not provided Benign:2
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Familial cancer of breast Benign:2
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Hereditary cancer-predisposing syndrome Benign:2
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This alteration is classified as 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. -
Medulloblastoma;C0346153:Familial cancer of breast;C0376358:Malignant tumor of prostate;C1838457:Fanconi anemia complementation group D1;C2675520:Breast-ovarian cancer, familial, susceptibility to, 2;C2751641:Glioma susceptibility 3;C3150546:Pancreatic cancer, susceptibility to, 2;CN033288:Wilms tumor 1 Benign:1
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Fanconi anemia complementation group D1 Benign:1
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at