PhosphopeptidesPeptide MappingPhosphorylationAmino Acid SequenceCaseinsPhosphoproteinsPhosphoserineMolecular Sequence DataPhosphothreonineProtein KinasesTrypsinSerineTitaniumProteomicsMass SpectrometryHafniumPhosphotyrosinePeptide FragmentsTandem Mass SpectrometryZirconiumsrc Homology DomainsChromatography, LiquidBinding SitesTyrosineRibosomal Protein S6ThreonineProteomeCasein KinasesSpectrometry, Mass, Electrospray IonizationSubstrate SpecificitySpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationPhosphoamino AcidsGentisatesChromatography, High Pressure LiquidGalliumPhosphorus RadioisotopesKineticsChromatography, AffinityElectrophoresis, Gel, Two-DimensionalProtein Kinase CElectrophoresis, Polyacrylamide GelPeptidesProtein-Tyrosine KinasesProtein BindingMolecular WeightCell LineSalivary Proline-Rich ProteinsProto-Oncogene Proteins pp60(c-src)PhosphotransferasesProtein-Serine-Threonine KinasesDynamin IIIPhosphatesMutagenesis, Site-DirectedPhosphoprotein PhosphatasesCation Exchange ResinsCalcium-Calmodulin-Dependent Protein KinasesTrifluoroacetic AcidProteinsReceptor, InsulinIsotope LabelingSignal TransductionAmino Acid Motifs14-3-3 ProteinsProline-Directed Protein KinasesRecombinant Fusion ProteinsRecombinant ProteinsProtein Tyrosine PhosphatasesEnzyme ActivationCasein Kinase IICDC2 Protein KinaseTetradecanoylphorbol AcetateGRB2 Adaptor ProteinIonsCattleHeLa CellsPrecipitin TestsAmino AcidsCyclic AMP-Dependent Protein KinasesAmino Acids, BasicSequence Homology, Amino AcidProtein Structure, TertiaryIon Exchange ResinsMacromolecular SubstancesProtein Processing, Post-TranslationalGlutathione TransferaseProto-Oncogene ProteinsAdaptor Proteins, Signal TransducingShc Signaling Adaptor ProteinsChromatography, Ion ExchangeHSP20 Heat-Shock ProteinsConsensus SequenceChemical PrecipitationProtein Tyrosine Phosphatase, Non-Receptor Type 11Cyclic AMPReceptors, Platelet-Derived Growth FactorRabbitsProtein Tyrosine Phosphatase, Non-Receptor Type 6Cells, CulturedMutationIntracellular Signaling Peptides and Proteins