rs786201573
Variant summary
Our verdict is Benign. The variant received -9 ACMG points: 2P and 11B. PM2BP4_ModerateBP6_Very_StrongBP7
The NM_000465.4(BARD1):c.2091A>T(p.Ala697Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,880 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 (★★). Synonymous variant affecting the same amino acid position (i.e. A697A) has been classified as Likely benign.
Frequency
Consequence
NM_000465.4 synonymous
Scores
Clinical Significance
Conservation
Publications
- breast cancerInheritance: AD Classification: DEFINITIVE Submitted by: G2P
- hereditary breast carcinomaInheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen
- familial ovarian cancerInheritance: AD Classification: LIMITED Submitted by: ClinGen
- hereditary nonpolyposis colon cancerInheritance: AD Classification: LIMITED Submitted by: ClinGen
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ACMG classification
Our verdict: Benign. The variant received -9 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| BARD1 | NM_000465.4 | c.2091A>T | p.Ala697Ala | synonymous_variant | Exon 11 of 11 | ENST00000260947.9 | NP_000456.2 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| BARD1 | ENST00000260947.9 | c.2091A>T | p.Ala697Ala | synonymous_variant | Exon 11 of 11 | 1 | NM_000465.4 | ENSP00000260947.4 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD4 exome AF: 0.00000274 AC: 4AN: 1461880Hom.: 0 Cov.: 32 AF XY: 0.00000413 AC XY: 3AN XY: 727242 show subpopulations
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Benign:2
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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. -
Familial cancer of breast Benign:2
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This variant is considered benign. This variant is a silent/synonymous amino acid change and it is not expected to impact splicing. -
Malignant tumor of breast Uncertain:1
The BARD1 p.Ala697= variant was not identified in the literature nor was it identified in the Cosmic, MutDB, or Zhejiang University databases. The variant was identified in dbSNP (ID: rs786201573) as "With Likely benign allele", and in ClinVar (classified as likely benign by Ambry Genetics, Invitae). The variant was not identified in the following control databases: the 1000 Genomes Project, the NHLBI GO Exome Sequencing Project, the Exome Aggregation Consortium (August 8th 2016), or the Genome Aggregation Database (Feb 27, 2017). The p.Ala697= variant is not expected to have clinical significance because it does not result in a change of amino acid and is not located in a known consensus splice site. The variant occurs outside of the splicing consensus sequence but 4 of 4 in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) predict a greater than 10% chance that a cryptic splice site located at this loci is lost due to this variation. However, this information is not predictive enough to assume pathogenicity. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time. This variant is classified as a variant of uncertain significance. -
Breast and/or ovarian cancer Benign:1
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BARD1-related disorder Benign:1
This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at