rs80358932
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.7052C>G(p.Ala2351Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000719 in 1,613,572 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A2351T) has been classified as Likely benign.
Frequency
Consequence
NM_000059.4 missense
Scores
Clinical Significance
Conservation
Publications
- breast-ovarian cancer, familial, susceptibility to, 2Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), ClinGen
- Fanconi anemia complementation group D1Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen, G2P
- pancreatic cancer, susceptibility to, 2Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
- sarcomaInheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
- hereditary breast ovarian cancer syndromeInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- Fanconi anemiaInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- medulloblastomaInheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
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ACMG classification
Our verdict: Benign. The variant received -12 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| BRCA2 | ENST00000380152.8 | c.7052C>G | p.Ala2351Gly | missense_variant | Exon 14 of 27 | 5 | NM_000059.4 | ENSP00000369497.3 | ||
| BRCA2 | ENST00000530893.7 | c.6683C>G | p.Ala2228Gly | missense_variant | Exon 14 of 27 | 1 | ENSP00000499438.2 | |||
| BRCA2 | ENST00000614259.2 | n.7052C>G | non_coding_transcript_exon_variant | Exon 13 of 26 | 2 | ENSP00000506251.1 |
Frequencies
GnomAD3 genomes AF: 0.0000789 AC: 12AN: 152178Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.000156 AC: 39AN: 250774 AF XY: 0.000155 show subpopulations
GnomAD4 exome AF: 0.0000712 AC: 104AN: 1461276Hom.: 1 Cov.: 31 AF XY: 0.0000729 AC XY: 53AN XY: 726932 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000788 AC: 12AN: 152296Hom.: 0 Cov.: 32 AF XY: 0.0000806 AC XY: 6AN XY: 74468 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Benign:8
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Variant Summary: The BRCA2 variant of interest causes a missense change involving a non-conserved nucleotide with 2/4 in silico programs predicting a "benign" outcome (SNPs&Go not captured here due to low reliability index), although these predictions have yet to be functionally assessed. The variant of interest was observed in a large, broad control population, ExAC with an allele frequency of 16/120976 (1/7561), predominantly in the East Asian cohort, 15/8648 (1/577), which significantly exceeds the maximal expected allele frequency for a pathogenic BRCA2 variant of 1/1333, therefore suggesting the variant of interest is a common polymorphism found in population(s) of East Asian origin. The variant of interest has been reported in affected individuals via publicatins, predominantly in those of Asian decent, although limited information is provided (i.e. lack of co-occurrence and co-segregation information being provided). The variant of interest has been reported by multiple reputable databases/clinical laboratories as "likely benign/benign." Additionally, the BIC database reports one individual with a pathogenic BRCA2 co-occurrence, c.1103C>A (p.Ser368Ter). Therefore, taking all lines of evidence into consideration, the variant of interest is classified as benign. -
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This variant is associated with the following publications: (PMID: 21990134, 20104584, 21990165, 28664449, 27658390, 24728327, 16949048, 21218378, 18824701, 17100994, 18006916, 21520273, 28222693, 27124784, 27150160, 21120943, 18779604, 26435481, 29731985, 28678401, 27907908, 29020732, 30415210, 28111427, 30093976, 31131967, 31825140) -
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Breast-ovarian cancer, familial, susceptibility to, 2 Uncertain:1Benign:5
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This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -
Hereditary cancer-predisposing syndrome Benign:3
This alteration is classified as likely 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. -
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not specified Benign:1Other:1
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Breast and/or ovarian cancer Benign:1
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Fanconi anemia complementation group D1 Benign:1
This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -
Malignant tumor of breast Benign:1
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Familial cancer of breast Benign:1
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Hereditary breast ovarian cancer syndrome Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at