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| Gene | PALB2 |
| Variant | L947S |
| Impact List | missense |
| Protein Effect | loss of function |
| Gene Variant Descriptions | PALB2 L947S lies within WD repeat 2 of the Palb2 protein (UniProt.org). L947S confers a loss of function to the Palb2 protein as demonstrated by decreased protein stability, Brca2 binding, recruitment to DNA damage sites, and Rad51 foci formation and intensity, and impaired homology-directed DNA repair activity compared to wild-type Palb2 in cultured cells (PMID: 31586400, PMID: 31757951). |
| Associated Drug Resistance | |
| Category Variants Paths |
PALB2 mutant PALB2 inact mut PALB2 L947S |
| Transcript | NM_024675.4 |
| gDNA | chr16:g.23623125A>G |
| cDNA | c.2840T>C |
| Protein | p.L947S |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| XM_017023672.2 | chr16:g.23623125A>G | c.2840T>C | p.L947S | RefSeq | GRCh38/hg38 |
| XM_017023672 | chr16:g.23623125A>G | c.2840T>C | p.L947S | RefSeq | GRCh38/hg38 |
| XM_017023673 | chr16:g.23623125A>G | c.2840T>C | p.L947S | RefSeq | GRCh38/hg38 |
| NM_001407299.1 | chr16:g.23623125A>G | c.2840T>C | p.L947S | RefSeq | GRCh38/hg38 |
| NM_024675.3 | chr16:g.23623125A>G | c.2840T>C | p.L947S | RefSeq | GRCh38/hg38 |
| XM_017023673.2 | chr16:g.23623125A>G | c.2840T>C | p.L947S | RefSeq | GRCh38/hg38 |
| NM_001407300.1 | chr16:g.23614086A>G | c.2840T>C | p.L947S | RefSeq | GRCh38/hg38 |
| NM_001407301.1 | chr16:g.23623125A>G | c.2840T>C | p.L947S | RefSeq | GRCh38/hg38 |
| NM_024675 | chr16:g.23623125A>G | c.2840T>C | p.L947S | RefSeq | GRCh38/hg38 |
| NM_024675.4 | chr16:g.23623125A>G | c.2840T>C | p.L947S | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| PALB2 L947S | osteosarcoma | sensitive | Olaparib | Preclinical - Cell culture | Actionable | In a preclinical study, osteosarcoma cells expressing PALB2 L947S were sensitive to treatment with Lynparza (olaparib), demonstrating decreased cell growth in culture (PMID: 31586400). | 31586400 |
| PALB2 L947S | Advanced Solid Tumor | sensitive | Olaparib | Preclinical - Cell culture | Actionable | In a preclinical study, cells expressing PALB2 L947S were sensitive to treatment with Lynparza (olaparib), demonstrating decreased cell growth in culture (PMID: 31586400). | 31586400 |
| PALB2 L947S | Advanced Solid Tumor | sensitive | Olaparib | Preclinical - Cell culture | Actionable | In a preclinical study, Lynparza (olaparib) treatment decreased viability of cells expressing PALB2 L947S in culture (PMID: 31757951). | 31757951 |