Ack1 (活化的Cdc42结合蛋白激酶1)

Ack1 (Activated Cdc42 kinase 1) is an enzyme that in humans is encoded by the TNK2 gene. Ack1 binds to multiple receptor tyrosine kinases e.g. EGFR, MERTK, AXL, HER2 and insulin receptor (IR). Ack1 also interacts with Cdc42Hs in its GTP-bound form and inhibits both the intrinsic and GTPase-activating protein (GAP)-stimulated GTPase activity of Cdc42Hs. Ack1 is a survival kinase and shown to be associated with tumor cell survival, proliferation, hormone-resistance and radiation resistance. Ack1 has emerged as a new cancer target and multiple small molecule inhibitors have been reported.