Gene Variant Detail

Gene KIT
Variant L576P
Impact List missense
Protein Effect gain of function
Gene Variant Descriptions KIT L576P lies within the juxtamembrane domain (exon 11) of the Kit protein (PMID: 17372901). L576P confers a gain of function to Kit, as indicated by constitutive phosphorylation of Kit, and is transforming in cell culture (PMID: 17372901).
Associated Drug Resistance

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Transcript NM_000222
gDNA chr4:g.54727495T>C
cDNA c.1727T>C
Protein p.L576P
Source Database RefSeq
Genome Build GRCh38/hg38
Transcript gDNA cDNA Protein Source Database Genome Build
NM_000222 chr4:g.54727495T>C c.1727T>C p.L576P RefSeq GRCh38/hg38
XM_017008178 chr4:g.54727495T>C c.1727T>C p.L576P RefSeq GRCh38/hg38

Filtering

  • Case insensitive filtering will display rows where any text in any cell matches the filter term
  • Simple literal full or partial string matches
  • Separate multiple filter terms with a spaces, order doesn't matter (a b c and c b a are equivalent )
  • Filtering will only apply to rows that are already loaded on the page, filtering has no impact on query parameters
  • Use quotes to match a longer phrase which contains spaces "mtor c1483f"

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  • Generally, the default sort order for tables is set to be first column ascending, however, specific tables may set a different default sort order.
  • Click on any column header arrows to sort by that column
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Molecular Profile Protein Effect Treatment Approaches
KIT L576P gain of function KIT Inhibitor
KIT L576P KIT W557R
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
KIT L576P melanoma sensitive Nilotinib Phase II Actionable In a Phase II trial, Tasigna (nilotinib) resulted in an overall response rate of 26.2% (11/41) including three melanoma patients harboring KIT L576P demonstrating a partial response (PMID: 28327988). 28327988
KIT L576P Advanced Solid Tumor sensitive Axitinib Preclinical - Cell culture Actionable In a preclinical study, Inlyta (axitinib) inhibited KIT phosphorylation and proliferation of transformed cells expressing KIT L576P in culture (PMID: 31205508). 31205508
KIT L576P melanoma unknown Imatinib Case Reports/Case Series Actionable In a clinical case study, Gleevec (imatinib) treatment resulted in initial tumor reduction, but was followed by disease progression at all tumor sites in a patient with metastasized labial melanoma harboring KIT L576P (PMID: 20372153). 20372153
KIT L576P melanoma sensitive SEL201 Preclinical - Cell line xenograft Actionable In a preclinical study, SEL201 inhibited MNK pathway signaling and growth of melanoma cells harboring KIT L576P in culture, and suppressed tumor metastasis in xenograft models (PMID: 29035277). 29035277
KIT L576P melanoma sensitive Dasatinib Case Reports/Case Series Actionable In a clinical study, two patients with melanoma harboring KIT L576P, one who had progressed on Gleevec (imatinib), demonstrated initial clinical benefit following treatment with Sprycel (dasatinib); however, one patient progressed after 3 months, and the other patient progressed after 4 months of treatment (PMID: 19671763). 19671763
KIT L576P melanoma sensitive Dasatinib Preclinical - Cell culture Actionable In a preclinical study, Sprycel (dasatinib) inhibited MNK pathway activation and proliferation of melanoma cell lines harboring KIT L576P in culture (PMID: 29035277). 29035277
KIT L576P melanoma predicted - sensitive Bevacizumab + Sorafenib Case Reports/Case Series Actionable In a Phase I trial, a melanoma patient harboring KIT L576P demonstrated sensitivity to the combination treatment of Nexavar (sorafenib) and Avastin (bevacizumab), resulting in a partial response for 8 months (PMID: 25363205). 25363205
KIT L576P KIT W557R melanoma sensitive Nilotinib Phase II Actionable In a Phase II trial, Tasigna (nilotinib) resulted in an overall response rate of 26.2% (11/41) including a melanoma patient co-harboring KIT L576P and KIT W557R demonstrating a partial response and a progression free survival of 5.3 months and overall survival of 14.7 months when treated with Tasigna (nilotinib) (PMID: 28327988). 28327988