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Gene | KIT |
Variant | D820N |
Impact List | missense |
Protein Effect | unknown |
Gene Variant Descriptions | KIT D820N lies within the protein kinase domain of the Kit protein (UniProt.org). D820N has been identified as a secondary mutation associated with imatinib-resistance (PMID: 18628470), but has not been biochemically characterized and therefore, its effect on Kit protein function is unknown (PubMed, Nov 2024). |
Associated Drug Resistance | Y |
Category Variants Paths |
KIT mutant KIT exon17 KIT D820N |
Transcript | NM_000222.3 |
gDNA | chr4:g.54733166G>A |
cDNA | c.2458G>A |
Protein | p.D820N |
Source Database | RefSeq |
Genome Build | GRCh38/hg38 |
Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
---|---|---|---|---|---|
NM_001385290.1 | chr4:g.54733166G>A | c.2458G>A | p.D820N | RefSeq | GRCh38/hg38 |
NM_000222.2 | chr4:g.54733166G>A | c.2458G>A | p.D820N | RefSeq | GRCh38/hg38 |
XM_005265741 | chr4:g.54733166G>A | c.2458G>A | p.D820N | RefSeq | GRCh38/hg38 |
XM_005265741.1 | chr4:g.54733166G>A | c.2458G>A | p.D820N | RefSeq | GRCh38/hg38 |
NM_000222 | chr4:g.54733166G>A | c.2458G>A | p.D820N | RefSeq | GRCh38/hg38 |
NM_000222.3 | chr4:g.54733166G>A | c.2458G>A | p.D820N | RefSeq | GRCh38/hg38 |
Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
---|---|---|---|---|---|---|---|
KIT D820N | gastrointestinal stromal tumor | predicted - resistant | Imatinib | Case Reports/Case Series | Actionable | In a clinical study, KIT D820N was identified as a secondary mutation in the metastatic lesions from a gastrointestinal stromal tumor patient whose disease progressed on Gleevec (imatinib) (PMID: 18628470). | 18628470 |