Abstract

Background: Phosphatidylinositol (PI) dependent kinase 1, PDK1, is a master kinase that activates other kinases important in cell growth and survival including members of the AKT, PKC, RSK and SGK families. PDK1 can interact with its substrates through both PI-dependent or PI-independent (PIF-mediated) mechanisms. SNS-510 is a potent, orally bioavailable inhibitor of active and inactive conformations of PDK1 and binds deep in the adaptive pocket. This interaction inhibits PI3K activity and perturbs the hydrophobic PIF-pocket, thereby affecting both PI-dependent and -independent pathways (Hansen Mol Cancer Ther 2015).

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