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Gene | BARD1 |
Variant | L44R |
Impact List | missense |
Protein Effect | loss of function |
Gene Variant Descriptions | BARD1 L44R lies within the BRCA1-interacting region of the Bard1 protein (UniProt.org). L44R confers a loss of function on the Bard1 protein, as demonstrated by loss of homology-directed DNA repair activity and loss of Brca1 binding in cell culture (PMID: 11773071, PMID: 30925164). |
Associated Drug Resistance | |
Category Variants Paths |
BARD1 mutant BARD1 inact mut BARD1 L44R |
Transcript | NM_000465.4 |
gDNA | chr2:g.214809439A>C |
cDNA | c.131T>G |
Protein | p.L44R |
Source Database | RefSeq |
Genome Build | GRCh38/hg38 |
Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
---|---|---|---|---|---|
NM_000465 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
NM_001282543.1 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
NM_001282543 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
XM_017004614.2 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
NM_001282549.1 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
NM_001282548.1 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
NM_001282545.1 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
NM_001282543.2 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
XM_017004613 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
XM_017004613.1 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
XM_017004613.2 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
NM_001282549 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
XM_047445350.1 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
XM_017004614 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
NM_001282548 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
NM_001282545 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
XM_017004614.1 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
NM_000465.3 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
NM_001282545.2 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
NM_000465.4 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
NM_001282548.2 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
NM_001282549.2 | chr2:g.214809439A>C | c.131T>G | p.L44R | RefSeq | GRCh38/hg38 |
Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
---|---|---|---|---|---|---|---|
BARD1 inact mut | prostate cancer | sensitive | Olaparib | Guideline | Actionable | Lynparza (olaparib) is included in guidelines as second-line therapy post androgen receptor-directed therapy for patients with metastatic castration-resistant prostate cancer harboring pathogenic mutations in BARD1 (NCCN.org). | detail... |
BARD1 inact mut | prostate cancer | sensitive | Olaparib | FDA approved - On Companion Diagnostic | Actionable | In a Phase III trial (PROfound) that supported FDA approval, Lynparza (olaparib) treatment significantly improved median imaging-based progression-free survival (5.8 vs 3.5 mo, HR 0.49, p<0.001) compared to control in patients with metastatic castration-resistant prostate cancer who progressed on hormone therapy and harbored deleterious or suspected deleterious mutations in homologous recombination repair genes, including BARD1 (PMID: 32343890; NCT02987543). | detail... 32343890 detail... |
BARD1 inact mut | colorectal cancer | predicted - sensitive | Veliparib | Preclinical - Cell culture | Actionable | In a preclinical study, a colorectal cancer cell line over expressing the BARD1-beta splice variant, which results in decreased Brca1 function, demonstrated sensitivity to treatment with Veliparib (ABT-888) in culture, resulting in increased apoptotic activity (PMID: 27197561). | 27197561 |
BARD1 mutant | breast cancer | no benefit | Olaparib | Case Reports/Case Series | Actionable | In a Phase II trial (TBCRC 048), Lynparza (olaparib) treatment did not result in an objective response in a patient with metastatic breast cancer harboring a germline mutation in BARD1 (PMID: 33119476; NCT03344965). | 33119476 |