Protein SPhosphorylationRibosomal Protein S6Protein S DeficiencySerineAmino Acid SequenceMolecular Sequence DataPhosphopeptidesProtein KinasesRibosomal ProteinsPhosphoserineThreoninePhosphoproteinsProtein-Serine-Threonine KinasesTyrosineCell LinePeptide MappingBinding SitesEnzyme ActivationPhosphothreonineCyclic AMP-Dependent Protein KinasesProtein BindingProtein Kinase CMutationRibosomal Protein S6 KinasesCasein Kinase IIMutagenesis, Site-DirectedProtein-Tyrosine KinasesKineticsRecombinant ProteinsCells, CulturedProtein Processing, Post-TranslationalSignal TransductionTransfectionOxidative PhosphorylationProtein Structure, TertiaryPhosphotyrosineBase SequenceProtein CAntibodies, Phospho-SpecificEnzyme InhibitorsMass SpectrometryBlotting, WesternCOS CellsProto-Oncogene Proteins c-aktComplement Inactivator ProteinsSubstrate SpecificityRecombinant Fusion ProteinsPhosphoprotein PhosphatasesCalcium-Calmodulin-Dependent Protein KinasesPeptide FragmentsCDC2 Protein KinaseRibosomal Protein S6 Kinases, 90-kDaElectrophoresis, Polyacrylamide GelMitogen-Activated Protein KinasesRibosomal Protein S6 Kinases, 70-kDaHeLa CellsSequence Homology, Amino AcidAmino Acid SubstitutionCarrier ProteinsIntracellular Signaling Peptides and ProteinsGlycogen Synthase Kinase 3Proto-Oncogene ProteinsPrecipitin TestsProteinsImmunoprecipitationDNA-Binding ProteinsImmunoblottingCell Cycle ProteinsAmino Acid Motifs14-3-3 Proteinssrc-Family KinasesCalciumCasein KinasesAdaptor Proteins, Signal TransducingPhosphatidylinositol 3-KinasesCell Line, TumorMitogen-Activated Protein Kinase 1Nuclear ProteinsCell NucleusCattleModels, BiologicalTrypsin3T3 CellsTetradecanoylphorbol AcetateTranscription FactorsMolecular WeightMitogen-Activated Protein Kinase 3Cyclic AMPProtein TransportEscherichia coliMAP Kinase Signaling SystemPhosphotransferasesPhosphorus RadioisotopesPeptidesMembrane ProteinsIsoenzymesMitosisCloning, MolecularExtracellular Signal-Regulated MAP Kinases