Gene Variant Detail

Gene KIT
Variant V559A
Impact List missense
Protein Effect gain of function
Gene Variant Descriptions KIT V559A lies within the juxtamembrane domain (exon 11) of the Kit protein (PMID: 15837988). V559A results in constitutive phosphorylation of Kit and increased Mapk and Akt activation in patient samples and cultured cells (PMID: 15837988, PMID: 19047099).
Associated Drug Resistance

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"

Sorting

  • 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
  • Hold down the Shift key and click multiple columns to sort by more than one column, be sure to set ascending or descending order for a given column, before moving on to the next column.

Transcript NM_000222
gDNA chr4:g.54727444T>C
cDNA c.1676T>C
Protein p.V559A
Source Database RefSeq
Genome Build GRCh38/hg38
Transcript gDNA cDNA Protein Source Database Genome Build
XM_017008178 chr4:g.54727444T>C c.1676T>C p.V559A RefSeq GRCh38/hg38
NM_000222 chr4:g.54727444T>C c.1676T>C p.V559A 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"

Sorting

  • 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
  • Hold down the Shift key and click multiple columns to sort by more than one column, be sure to set ascending or descending order for a given column, before moving on to the next column.

Molecular Profile Protein Effect Treatment Approaches
KIT V559A gain of function KIT Inhibitor
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
KIT V559A melanoma predicted - sensitive Imatinib Case Reports/Case Series Actionable In a clinical case study, Gleevec (imatinib) treatment in a patient with metastatic melanoma resulted in regression of the lung metastasis, which harbored KIT V559A; however, neither the primary tumor or lymph node metastasis responded, which had wild-type KIT (PMID: 19812602). 19812602
KIT V559A gastrointestinal stromal tumor predicted - resistant Imatinib Case Reports/Case Series Actionable In a clinical study, KIT V559A was identified as a secondary mutation in a patient with gastrointestinal stromal tumor who developed resistance to Gleevec (imatinib) (PMID: 18488160). 18488160
KIT V559A 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 V559A in culture (PMID: 31205508). 31205508
KIT V559A melanoma sensitive Nilotinib Case Reports/Case Series Actionable In a Phase II trial, Tasigna (nilotinib) resulted in an overall response rate of 26.2% (11/41), including a melanoma patient harboring KIT V559A demonstrating a partial response and progression-free survival of 19.4 months and overall survival of 32.9 months (PMID: 28327988). 28327988