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| Gene | CSF1R |
| Variant | W450_E456del |
| Impact List | deletion |
| Protein Effect | gain of function |
| Gene Variant Descriptions | CSF1R W450_E456del results in a deletion of seven amino acids within the Ig-like C2 type domain 5 of the Csf1r protein (UniProt.org). W450_E456del confers a gain of function to the Csf1r protein, resulting in cytokine-independent cell growth and increased Mek/Erk signaling in culture (PMID: 31768065). |
| Associated Drug Resistance | |
| Category Variants Paths |
CSF1R mutant CSF1R act mut CSF1R W450_E456del |
| Transcript | NM_001288705.3 |
| gDNA | chr5:g.150070015_150070035del21 |
| cDNA | c.1348_1368del21 |
| Protein | p.W450_E456delWDDPYPE |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_005211.4 | chr5:g.150070015_150070035del21 | c.1348_1368del21 | p.W450_E456delWDDPYPE | RefSeq | GRCh38/hg38 |
| NM_001288705.2 | chr5:g.150070015_150070035del21 | c.1348_1368del21 | p.W450_E456delWDDPYPE | RefSeq | GRCh38/hg38 |
| NM_001288705.3 | chr5:g.150070015_150070035del21 | c.1348_1368del21 | p.W450_E456delWDDPYPE | RefSeq | GRCh38/hg38 |
| NM_001375320.1 | chr5:g.150070015_150070035del21 | c.1348_1368del21 | p.W450_E456delWDDPYPE | RefSeq | GRCh38/hg38 |
| NM_001288705 | chr5:g.150070015_150070035del21 | c.1348_1368del21 | p.W450_E456delWDDPYPE | RefSeq | GRCh38/hg38 |
| NM_005211 | chr5:g.150070015_150070035del21 | c.1348_1368del21 | p.W450_E456delWDDPYPE | RefSeq | GRCh38/hg38 |
| NM_001375321.1 | chr5:g.150061539_150061559del21 | c.1349_1369del21 | p.E450_L456delEATAFGL | RefSeq | GRCh38/hg38 |
| NM_001349736.1 | chr5:g.150070015_150070035del21 | c.1348_1368del21 | p.W450_E456delWDDPYPE | RefSeq | GRCh38/hg38 |
| NM_005211.3 | chr5:g.150070015_150070035del21 | c.1348_1368del21 | p.W450_E456delWDDPYPE | RefSeq | GRCh38/hg38 |
| NM_001349736.2 | chr5:g.150070015_150070035del21 | c.1348_1368del21 | p.W450_E456delWDDPYPE | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| CSF1R W450_E456del | Advanced Solid Tumor | sensitive | Pexidartinib | Preclinical - Cell culture | Actionable | In a preclinical study, transformed cells expressing CSF1R W450_E456del demonstrated sensitivity to treatment with Turalio (pexidartinib) in culture (PMID: 31768065). | 31768065 |
| CSF1R W450_E456del | Advanced Solid Tumor | sensitive | BLZ945 | Preclinical - Cell culture | Actionable | In a preclinical study, transformed cells expressing CSF1R W450_E456del demonstrated sensitivity to treatment with BLZ945 in culture (PMID: 31768065). | 31768065 |