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| Gene | KIT |
| Variant | N822I |
| Impact List | missense |
| Protein Effect | gain of function |
| Gene Variant Descriptions | KIT N822I lies within the tyrosine kinase domain 2 of the Kit protein (PMID: 17555444). N822I results in constitutive Kit phosphorylation, is transforming in cell culture, and confers resistance to imatinib (PMID: 21689725). |
| Associated Drug Resistance | Y |
| Category Variants Paths |
KIT mutant KIT act mut KIT N822I KIT mutant KIT exon17 KIT N822I |
| Transcript | NM_000222.3 |
| gDNA | chr4:g.54733173A>T |
| cDNA | c.2465A>T |
| Protein | p.N822I |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_000222.3 | chr4:g.54733173A>T | c.2465A>T | p.N822I | RefSeq | GRCh38/hg38 |
| NM_001385290.1 | chr4:g.54733173A>T | c.2465A>T | p.N822I | RefSeq | GRCh38/hg38 |
| XM_005265741.1 | chr4:g.54733173A>T | c.2465A>T | p.N822I | RefSeq | GRCh38/hg38 |
| NM_000222 | chr4:g.54733173A>T | c.2465A>T | p.N822I | RefSeq | GRCh38/hg38 |
| XM_005265741 | chr4:g.54733173A>T | c.2465A>T | p.N822I | RefSeq | GRCh38/hg38 |
| NM_000222.2 | chr4:g.54733173A>T | c.2465A>T | p.N822I | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| KIT N822I | Advanced Solid Tumor | resistant | Imatinib | Preclinical - Cell culture | Actionable | In a preclinical study, transformed cells expressing KIT N822I demonstrated resistance to Gleevec (imatinib) in culture (PMID: 21689725). | 21689725 |
| KIT N822I | Advanced Solid Tumor | sensitive | Dasatinib | Preclinical - Cell culture | Actionable | In a preclinical study, Sprycel (dasatinib) inhibited growth and induced apoptosis of transformed cells expressing KIT N822I in culture (PMID: 21689725). | 21689725 |