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| Gene | PDGFRB |
| Variant | R561C |
| Impact List | missense |
| Protein Effect | gain of function |
| Gene Variant Descriptions | PDGFRB R561C lies within the cytoplasmic domain of the Pdgfrb protein (UniProt.org). R561C results in constitutive phosphorylation of Pdgfrb, activation of downstream signaling (PMID: 33509954, PMID: 26455322), and is transforming in cell culture (PMID: 26455322). |
| Associated Drug Resistance | |
| Category Variants Paths |
PDGFRB mutant PDGFRB act mut PDGFRB R561C |
| Transcript | NM_002609.4 |
| gDNA | chr5:g.150125571G>A |
| cDNA | c.1681C>T |
| Protein | p.R561C |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_002609.3 | chr5:g.150125571G>A | c.1681C>T | p.R561C | RefSeq | GRCh38/hg38 |
| NM_002609.4 | chr5:g.150125571G>A | c.1681C>T | p.R561C | RefSeq | GRCh38/hg38 |
| XM_011537659 | chr5:g.150125571G>A | c.1681C>T | p.R561C | RefSeq | GRCh38/hg38 |
| XM_011537658 | chr5:g.150125571G>A | c.1681C>T | p.R561C | RefSeq | GRCh38/hg38 |
| NM_002609 | chr5:g.150125571G>A | c.1681C>T | p.R561C | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| PDGFRB R561C | Advanced Solid Tumor | sensitive | Imatinib | Preclinical - Cell culture | Actionable | In a preclinical study, Gleevec (imatinib) inhibited PDGFRB downstream signaling and proliferation of transformed cells expressing PDGFRB R561C in culture (PMID: 26455322). | 26455322 |
| PDGFRB R561C | Advanced Solid Tumor | sensitive | Nilotinib | Preclinical - Cell culture | Actionable | In a preclinical study, Tasigna (nilotinib) inhibited PDGFRB downstream signaling and proliferation of transformed cells expressing PDGFRB R561C in culture (PMID: 26455322). | 26455322 |
| PDGFRB R561C | Advanced Solid Tumor | sensitive | Ponatinib | Preclinical - Cell culture | Actionable | In a preclinical study, Iclusig (ponatinib) inhibited PDGFRB downstream signaling and proliferation of transformed cells expressing PDGFRB R561C in culture (PMID: 26455322). | 26455322 |