SerinePhosphorylationAmino Acid SequenceMolecular Sequence DataProtein KinasesPhosphoproteinsPhosphoserineCell LineProtein-Serine-Threonine KinasesBinding SitesTyrosineKineticsAmino AcidsMutagenesis, Site-DirectedSequence Homology, Amino AcidPhosphopeptidesEnzyme ActivationProtein Kinase CThreonineMutationProtein BindingPhosphoprotein PhosphatasesPeptide MappingProtein Structure, TertiaryBase SequenceRecombinant ProteinsAmino Acid SubstitutionSubstrate SpecificityProteinsCyclic AMP-Dependent Protein KinasesProtein Processing, Post-TranslationalSerine EndopeptidasesElectrophoresis, Polyacrylamide GelMolecular WeightSignal TransductionCells, CulturedOkadaic AcidProtein-Tyrosine KinasesPeptide FragmentsModels, MolecularCasein Kinase IIEnzyme InhibitorsCloning, MolecularTransfectionPhosphothreonineProtein ConformationPhosphotyrosineCalciumRecombinant Fusion ProteinsEthers, CyclicAmino Acid MotifsStructure-Activity RelationshipPhosphorus RadioisotopesTetradecanoylphorbol AcetateOxidative PhosphorylationSequence AlignmentBlotting, WesternCyclic AMPMembrane ProteinsPeptidesCOS CellsHeLa CellsEscherichia coliAdenosine TriphosphateCalcium-Calmodulin-Dependent Protein KinasesDNA-Binding ProteinsMass SpectrometryCarrier ProteinsCattleCell MembranePrecipitin TestsTrypsinProtein Phosphatase 2Mitogen-Activated Protein KinasesProto-Oncogene Proteins c-aktPhosphoamino AcidsIntracellular Signaling Peptides and ProteinsProto-Oncogene ProteinsImmunoblottingCasein KinasesAlanineCell NucleusProtein Kinase InhibitorsModels, BiologicalProtein Phosphatase 1IsoenzymesDNACysteineTumor Cells, CulturedOxazolesGlycogen Synthase Kinase 3CricetinaeDNA PrimersTime FactorsConserved SequenceImmunoprecipitationTranscription FactorsNuclear ProteinsBacterial ProteinsPhosphates