... AM,van Lint J & Burgering BM (1998) Essential role forprotein kinase B (PKB) in insulin-induced glycogensynthase kinase 3 inactivation. Characterization of dominant-negative mutant of PKB. ... S6 kinase; PDK1, phosphoinositide-dependent protein kinase-1; PKA, protein kinase A; PKB, protein kinase B; PKC,protein kinase C; p-Ser, phospho-serine; PtdIns3K, phosphatidylinositol 3 kinase; ... myelin basic protein and casein. Interestingly,TSSK3 showed maximal in vitro kinase activity at 30 °C, in keeping with itbeing testis specific. Sequence comparison indicated the existence of...