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| Gene | KIT |
| Variant | P551_E554del |
| Impact List | deletion |
| Protein Effect | gain of function - predicted |
| Gene Variant Descriptions | KIT P551_E554del results in the deletion of 4 amino acids in the juxtamembrane domain (exon 11) of the Kit protein from amino acids 551 to 554 (PMID: 16226710). P551_E554del has not been characterized, however similar Kit exon 11 deletions are activating (PMID: 9438854, PMID: 15365079), and therefore, is predicted to lead to a gain of Kit protein function. |
| Associated Drug Resistance | |
| Category Variants Paths |
KIT mutant KIT act mut KIT exon 11 del KIT P551_E554del KIT mutant KIT exon11 KIT exon 11 del KIT P551_E554del |
| Transcript | NM_000222.3 |
| gDNA | chr4:g.54727419_54727430del12 |
| cDNA | c.1651_1662del12 |
| Protein | p.P551_E554delPMYE |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_000222.2 | chr4:g.54727419_54727430del12 | c.1651_1662del12 | p.P551_E554delPMYE | RefSeq | GRCh38/hg38 |
| XM_017008178 | chr4:g.54727419_54727430del12 | c.1651_1662del12 | p.P551_E554delPMYE | RefSeq | GRCh38/hg38 |
| XM_017008179.1 | chr4:g.54727428_54727439del12 | c.1651_1662del12 | p.E551_W554delEVQW | RefSeq | GRCh38/hg38 |
| NM_001385285.1 | chr4:g.54727419_54727430del12 | c.1651_1662del12 | p.P551_E554delPMYE | RefSeq | GRCh38/hg38 |
| XM_017008179 | chr4:g.54727428_54727439del12 | c.1651_1662del12 | p.E551_W554delEVQW | RefSeq | GRCh38/hg38 |
| XM_017008180 | chr4:g.54727433_54727444del12 | c.1653_1664del12 | p.Q552_V555delQWKV | RefSeq | GRCh38/hg38 |
| NM_000222.3 | chr4:g.54727419_54727430del12 | c.1651_1662del12 | p.P551_E554delPMYE | RefSeq | GRCh38/hg38 |
| XM_005265741.1 | chr4:g.54727416_54727427del12 | c.1651_1662del12 | p.K551_Y554delKPMY | RefSeq | GRCh38/hg38 |
| XM_005265742 | chr4:g.54727428_54727439del12 | c.1651_1662del12 | p.E551_W554delEVQW | RefSeq | GRCh38/hg38 |
| NM_001385288.1 | chr4:g.54727428_54727439del12 | c.1651_1662del12 | p.E551_W554delEVQW | RefSeq | GRCh38/hg38 |
| NM_000222 | chr4:g.54727419_54727430del12 | c.1651_1662del12 | p.P551_E554delPMYE | RefSeq | GRCh38/hg38 |
| XM_005265742.3 | chr4:g.54727428_54727439del12 | c.1651_1662del12 | p.E551_W554delEVQW | RefSeq | GRCh38/hg38 |
| XM_017008178.1 | chr4:g.54727419_54727430del12 | c.1651_1662del12 | p.P551_E554delPMYE | RefSeq | GRCh38/hg38 |
| XM_017008180.1 | chr4:g.54727433_54727444del12 | c.1653_1664del12 | p.Q552_V555delQWKV | RefSeq | GRCh38/hg38 |
| NM_001385290.1 | chr4:g.54727416_54727427del12 | c.1651_1662del12 | p.K551_Y554delKPMY | RefSeq | GRCh38/hg38 |
| NM_001385292.1 | chr4:g.54727428_54727439del12 | c.1651_1662del12 | p.E551_W554delEVQW | RefSeq | GRCh38/hg38 |
| NM_001385286.1 | chr4:g.54727433_54727444del12 | c.1653_1664del12 | p.Q552_V555delQWKV | RefSeq | GRCh38/hg38 |
| NM_001385284.1 | chr4:g.54727416_54727427del12 | c.1651_1662del12 | p.K551_Y554delKPMY | RefSeq | GRCh38/hg38 |
| NM_001093772.2 | chr4:g.54727433_54727444del12 | c.1653_1664del12 | p.Q552_V555delQWKV | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| KIT P551_E554del | Advanced Solid Tumor | sensitive | Ponatinib | Preclinical | Actionable | In a preclinical study, transformed cells expressing KIT P551_E554del demonstrated sensitivity to treatment with Iclusig (ponatinib) in culture, resulting in reduced cell viability (PMID: 25239608). | 25239608 |
| KIT P551_E554del | Advanced Solid Tumor | resistant | Sunitinib | Preclinical | Actionable | In a preclinical study, transformed cells expressing KIT P551_E554del were resistant to treatment with Sutent (sunitinib) in culture (PMID: 25239608). | 25239608 |
| KIT P551_E554del | Advanced Solid Tumor | resistant | Imatinib | Preclinical | Actionable | In a preclinical study, transformed cells expressing KIT P551_E554del were resistant to treatment with Gleevec (imatinib) in culture (PMID: 25239608). | 25239608 |
| KIT P551_E554del | Advanced Solid Tumor | resistant | Regorafenib | Preclinical | Actionable | In a preclinical study, transformed cells expressing KIT P551_E554del were resistant to treatment with Stivarga (regorafenib) in culture (PMID: 25239608). | 25239608 |