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| Gene | PDGFRB |
| Variant | R849_D850delinsH |
| Impact List | indel |
| Protein Effect | gain of function - predicted |
| Gene Variant Descriptions | PDGFRB R849_D850delinsH results in a deletion of two amino acids in the protein kinase domain of the Pdgfrb protein from amino acids 849 to 850, combined with the insertion of a histidine (H) at the same site (UniProt.org). R849_D850delinsH results in constitutive Pdgfrb activity and is associated with resistance in a reporter assay (PMID: 39580648), and therefore, is predicted to lead to a gain of Pdgfrb protein function. |
| Associated Drug Resistance | |
| Category Variants Paths |
PDGFRB mutant PDGFRB act mut PDGFRB R849_D850delinsH |
| Transcript | NM_002609.4 |
| gDNA | chr5:g.150120926_150120928delCTC |
| cDNA | c.2546_2548delGAG |
| Protein | p.R849_D850delinsH |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_002609.4 | chr5:g.150120926_150120928delCTC | c.2546_2548delGAG | p.R849_D850delinsH | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| PDGFRB R849_D850delinsH | Advanced Solid Tumor | predicted - resistant | Imatinib | Preclinical - Biochemical | Actionable | In a preclinical study, PDGFRB R849_D850delinsH demonstrated resistance to inhibition of Pdgrb activity by Gleevec (imatinib) in a reporter assay in cultured cells (PMID: 39580648). | 39580648 |
| PDGFRB R849_D850delinsH | Advanced Solid Tumor | predicted - sensitive | Dasatinib | Preclinical - Biochemical | Actionable | In a preclinical study, Sprycel (dasatinib) treatment inhibited Pdgfrb activity in a reporter assay in a cell line expressing PDGFRB R849_D850delinsH (PMID: 39580648). | 39580648 |