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| Gene | KIT |
| Variant | P551_V555delinsTL |
| Impact List | indel |
| Protein Effect | gain of function - predicted |
| Gene Variant Descriptions | KIT P551_V555delinsTL results in a deletion of five amino acids in the juxtamembrane domain (exon 11) of the Kit protein from amino acids 551 to 555, combined with the insertion of a threonine (T) and a leucine (L) at the same site (PMID: 12879016). P551_V555delinsTL 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_V555delinsTL KIT mutant KIT exon11 KIT exon 11 del KIT P551_V555delinsTL |
| Transcript | NM_000222.3 |
| gDNA | chr4:g.54727419_54727433delinsACACTT |
| cDNA | c.1651_1665delinsACACTT |
| Protein | p.P551_V555delinsTL |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_000222.2 | chr4:g.54727419_54727433delinsACACTT | c.1651_1665delinsACACTT | p.P551_V555delinsTL | RefSeq | GRCh38/hg38 |
| XM_017008178.1 | chr4:g.54727419_54727433delinsACACTT | c.1651_1665delinsACACTT | p.P551_V555delinsTL | RefSeq | GRCh38/hg38 |
| NM_000222.3 | chr4:g.54727419_54727433delinsACACTT | c.1651_1665delinsACACTT | p.P551_V555delinsTL | RefSeq | GRCh38/hg38 |
| NM_000222 | chr4:g.54727419_54727433delinsACACTT | c.1651_1665delinsACACTT | p.P551_V555delinsTL | RefSeq | GRCh38/hg38 |
| XM_017008178 | chr4:g.54727419_54727433delinsACACTT | c.1651_1665delinsACACTT | p.P551_V555delinsTL | RefSeq | GRCh38/hg38 |
| NM_001385285.1 | chr4:g.54727419_54727433delinsACACTT | c.1651_1665delinsACACTT | p.P551_V555delinsTL | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| KIT P551_V555delinsTL | gastrointestinal stromal tumor | sensitive | Sorafenib | Preclinical - Pdx | Actionable | In a preclinical study, Nexavar (sorafenib) inhibited Erk signaling, induced apoptosis, resulted in tumor growth inhibition in patient derived xenograft models of gastrointestinal stromal tumor harboring KIT P551_V555delinsTL (PMID: 19139124). | 19139124 |