catalytic activity:ATP + a protein = ADP + a phosphoprotein. ,function:Phosphorylates and activates not only PKB/AKT , but also PKA , PKC-zeta , RPS6KA1 and RPS6KB1. May play a general role in signaling processes and in development (By similarity) . Isoform 3 is catalytically inactive. ,PTM:Phosphorylated on tyrosine and serine/threonine. Phosphorylation on Ser-241 in the activation loop is required for full activity. PDK1 itself can autophosphorylate Ser-241 , leading to its own activation. ,similarity:Belongs to the protein kinase superfamily. ,similarity:Belongs to the protein kinase superfamily. AGC Ser/Thr protein kinase family. PDK1 subfamily. ,similarity:Contains 1 PH domain. ,similarity:Contains 1 protein kinase domain. ,subcellular location:Membrane-associated after cell stimulation leading to its translocation. Tyrosine phosphorylation seems to occur only at the plasma membrane. ,subunit:Interacts with TUSC4. ,tissue specificity:Appears to be expressed ubiquitously. ,
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