SerinePhosphorylationAmino Acid SequenceMolecular Sequence DataPhosphoserinePeptidyl-Dipeptidase ABinding SitesMutagenesis, Site-DirectedCell LineProtein KinasesProtein-Serine-Threonine KinasesTyrosineBase SequencePhosphoproteinsThreonineMutationKineticsEnzyme ActivationProtein BindingSerine EndopeptidasesSequence Homology, Amino AcidProtein Structure, TertiaryRecombinant ProteinsPeptide MappingPhosphopeptidesProtein Kinase CSubstrate SpecificityCells, CulturedMalate DehydrogenaseTransfectionCasein Kinase IICyclic AMP-Dependent Protein KinasesProtein Processing, Post-TranslationalProtein-Tyrosine KinasesAmino Acid SubstitutionModels, MolecularCloning, MolecularOxidative PhosphorylationPeptide FragmentsSignal TransductionDNA-Binding ProteinsProtein ConformationGene Expression Regulation, EnzymologicElectrophoresis, Polyacrylamide GelEnzyme InhibitorsPolymorphism, GeneticPhosphotyrosinePhosphothreonineCOS CellsRecombinant Fusion ProteinsBlotting, WesternStructure-Activity RelationshipSequence AlignmentPhosphoprotein PhosphatasesAmino AcidsTranscription FactorsHeLa CellsEscherichia coliProto-Oncogene Proteins c-aktProteinsMolecular WeightPrecipitin TestsPhosphoamino AcidsAmino Acid MotifsTranscription, GeneticSerine ProteasesMitogen-Activated Protein KinasesSerine Proteinase InhibitorsPeptidesCalcium-Calmodulin-Dependent Protein KinasesRNA, MessengerDNA PrimersCysteineProto-Oncogene ProteinsAlanineTrypsinCasein KinasesCell NucleusDNAIntracellular Signaling Peptides and ProteinsImmunoblottingCattleMembrane ProteinsCarrier ProteinsIsoenzymesGene Deletion14-3-3 ProteinsImmunoprecipitationGene Expression RegulationCell MembraneGenotypeGlycogen Synthase Kinase 3CalciumOkadaic AcidNuclear ProteinsProtein Structure, SecondaryAdenosine TriphosphateCatalysisTetradecanoylphorbol AcetateTime Factors