SerineProtein IsoformsPhosphorylationAmino Acid SequenceMolecular Sequence DataPhosphoserineCell LineMutagenesis, Site-DirectedProtein KinasesBinding SitesProtein-Serine-Threonine KinasesTyrosineProtein BindingPhosphoproteinsEnzyme ActivationThreonineKineticsMutationBase SequenceProtein Structure, TertiarySerine EndopeptidasesRecombinant ProteinsProtein Kinase CSequence Homology, Amino AcidPeptide MappingPhosphopeptidesSubstrate SpecificityCells, CulturedIsoenzymesTransfectionProtein Processing, Post-TranslationalCyclic AMP-Dependent Protein KinasesModels, MolecularCasein Kinase IIAmino Acid SubstitutionProtein-Tyrosine KinasesBlotting, WesternElectrophoresis, Polyacrylamide GelPeptide FragmentsEnzyme InhibitorsSignal TransductionOxidative PhosphorylationCOS CellsProtein ConformationRecombinant Fusion ProteinsCloning, MolecularStructure-Activity RelationshipPhosphotyrosinePhosphothreonineSequence AlignmentDNA-Binding ProteinsHeLa CellsPhosphoprotein PhosphatasesMolecular WeightAmino AcidsPrecipitin TestsProteinsProto-Oncogene Proteins c-aktAmino Acid MotifsImmunoblottingMembrane ProteinsMitogen-Activated Protein KinasesPeptidesCarrier ProteinsPhosphoamino AcidsCalcium-Calmodulin-Dependent Protein KinasesSerine ProteasesProto-Oncogene ProteinsCattleCell MembraneEscherichia coliRNA, MessengerSerine Proteinase InhibitorsCysteine14-3-3 ProteinsCalciumIntracellular Signaling Peptides and ProteinsTrypsinCasein KinasesDNA PrimersAlanineImmunoprecipitationProtein TransportCell Line, TumorTranscription FactorsDNA, ComplementaryTetradecanoylphorbol AcetateCell NucleusCricetinaeCatalysisGlycogen Synthase Kinase 3Protein Structure, SecondaryAdenosine TriphosphateModels, BiologicalMass SpectrometryOkadaic AcidTumor Cells, CulturedTranscription, GeneticPhosphatidylinositol 3-KinasesNuclear Proteins