Deletion of Trp-557 and Lys-558 in the juxtamembrane domain of the c-kit protooncogene is associated with metastatic behavior of gastrointestinal stromal tumors.

Abstract excerpt

Gastrointestinal stromal tumors (GISTs) typically express high levels of the Kit-receptor. The majority of GISTs carry mutations in the c-kit protooncogene clustering in exon 11. The significance of c-kit mutations for the biological behavior of GISTs is still under discussion. We evaluated 55 sporadic GISTs with available follow-up data for c-kit mutations in the juxtamembrane domain and detected mutations in 35...

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