rs587782504
Variant summary
Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong
The NM_000465.4(BARD1):c.1932_1933del(p.Cys645Ter) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,613,874 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. V644V) has been classified as Likely benign.
Frequency
Consequence
NM_000465.4 frameshift
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 16 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
BARD1 | NM_000465.4 | c.1932_1933del | p.Cys645Ter | frameshift_variant | 10/11 | ENST00000260947.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
BARD1 | ENST00000260947.9 | c.1932_1933del | p.Cys645Ter | frameshift_variant | 10/11 | 1 | NM_000465.4 | P2 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152132Hom.: 0 Cov.: 32
GnomAD4 exome AF: 0.00000410 AC: 6AN: 1461742Hom.: 0 AF XY: 0.00000688 AC XY: 5AN XY: 727168
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152132Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74314
ClinVar
Submissions by phenotype
Familial cancer of breast Pathogenic:4
Pathogenic, criteria provided, single submitter | clinical testing | Baylor Genetics | Nov 14, 2023 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | MGZ Medical Genetics Center | Jun 03, 2022 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Myriad Genetics, Inc. | May 25, 2023 | This variant is considered pathogenic. This variant creates a termination codon and is predicted to result in premature protein truncation. - |
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Dec 18, 2023 | This sequence change creates a premature translational stop signal (p.Cys645*) in the BARD1 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in BARD1 are known to be pathogenic (PMID: 20077502, 21344236). This variant is present in population databases (rs587782504, gnomAD 0.007%). This premature translational stop signal has been observed in individual(s) with family history of breast cancer (PMID: 25452441, 26845104). ClinVar contains an entry for this variant (Variation ID: 142499). For these reasons, this variant has been classified as Pathogenic. - |
Hereditary cancer-predisposing syndrome Pathogenic:4
Likely pathogenic, criteria provided, single submitter | clinical testing | University of Washington Department of Laboratory Medicine, University of Washington | Nov 20, 2015 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Jun 21, 2022 | This variant deletes 2 nucleotides in exon 10 of the BARD1 gene, creating a frameshift and premature translation stop signal. This variant is expected to result in an absent or non-functional protein product. To our knowledge, this variant has been reported in individuals affected with breast and colorectal cancer in the literature (PMID: 25452441, 26845104, 29478780). This variant has been identified in 1/31408 chromosomes in the general population by the Genome Aggregation Database (gnomAD). Loss of BARD1 function is a known mechanism of disease (clinicalgenome.org). Based on the available evidence, this variant is classified as Pathogenic. - |
Pathogenic, criteria provided, single submitter | clinical testing | Ambry Genetics | Jun 10, 2014 | ​<span style="background-color: initial;">The c.1932_1933delAT pathogenic mutation, located in exon 10 of the BARD1 gene, results from a deletion of 2 nucleotides between positions 1932 and 1933, causing a translational frameshift with a predicted alternate stop codon. Since frameshifts are typically deleterious in nature, this alteration is interpreted as a disease-causing mutation (ACMG Recommendations for Standards for Interpretation and Reporting of Sequence Variations. Revision 2007. Genet Med. 2008;10:294). - |
Pathogenic, criteria provided, single submitter | research | Hauer Lab, Department Of Pediatric Oncology, Technical University Munich | - | ACMG/AMP, PVS1, PM2, PP5 - |
not provided Pathogenic:3
Likely pathogenic, criteria provided, single submitter | clinical testing | GeneDx | Aug 21, 2018 | This deletion of two nucleotides is denoted BARD1 c.1932_1933delAT at the cDNA level and p.Cys645Ter (C645X) at the protein level. The normal sequence, with the bases that are deleted in brackets, is AAGT[delAT]GTGA. The deletion creates a nonsense variant, which changes a Cysteine to a premature stop codon (TGT>TGA), and is predicted to cause loss of normal protein function through either protein truncation or nonsense-mediated mRNA decay. BARD1 c.1932_1933delATAT has been reported in an individual with triple negative breast cancer and in an individual with a family history of breast cancer (Couch 2015, Shirts 2016). This variant is considered likely pathogenic. - |
Likely pathogenic, criteria provided, single submitter | clinical testing | Institute of Human Genetics, FAU Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg | Sep 19, 2023 | This variant has been identified by standard clinical testing. Selected ACMG criteria: Likely pathogenic (I):PM2;PVS1 - |
Likely pathogenic, criteria provided, single submitter | clinical testing | Institute for Clinical Genetics, University Hospital TU Dresden, University Hospital TU Dresden | May 04, 2023 | PVS1, PM2_SUP - |
Malignant tumor of breast Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Women's Health and Genetics/Laboratory Corporation of America, LabCorp | Dec 05, 2022 | Variant summary: BARD1 c.1932_1933delAT (p.Cys645X) results in a premature termination codon, predicted to cause a truncation of the encoded protein or absence of the protein due to nonsense mediated decay, which are commonly known mechanisms for disease. Truncations downstream of this position have been classified as pathogenic by our laboratory. The variant allele was found at a frequency of 6.6e-06 in 150904 control chromosomes (gnomAD v3.1.2). c.1932_1933delAT has been reported in the literature in individuals affected with breast cancer or colorectal cancer (Couch_2015, Shirt_2016, AlDubayan_2018). These data indicate that the variant may be associated with disease. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Five ClinVar submitters have assessed the variant since 2014: two classified the variant as likely pathogenic and three as pathogenic. Based on the evidence outlined above, the variant was classified as likely pathogenic. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at