Sensitivity and SpecificitySubstrate Specificitysrc Homology DomainsSequence Homology, Amino AcidBinding SitesProtein BindingMolecular Sequence DataRecombinant Fusion ProteinsProtein Interaction Domains and MotifsSequence AlignmentProtein ConformationAntibody SpecificityRecombinant ProteinsAmino Acid SequenceMutagenesis, Site-DirectedCloning, MolecularBase SequenceProtein Structure, SecondaryCrystallography, X-RayModels, MolecularKineticsStructure-Activity RelationshipAmino Acid MotifsSpecies SpecificityEscherichia coliDNA-Binding ProteinsPDZ DomainsCarrier ProteinsDimerizationMembrane ProteinsTransfectionTranscription FactorsPeptide FragmentsConserved SequenceMutationDNAPhosphorylationSignal TransductionBacterial ProteinsPeptidesAdaptor Proteins, Signal TransducingDNA PrimersLigandsSequence DeletionCell LineAmino Acid SubstitutionDNA, ComplementaryMutagenesisCell MembraneProtein FoldingPlasmidsTwo-Hybrid System TechniquesNuclear ProteinsSaccharomyces cerevisiaeHeLa CellsTranscription, GeneticPhosphoproteinsPolymerase Chain ReactionElectrophoresis, Polyacrylamide GelPoint MutationProtein Structure, QuaternaryTyrosineEpitopesCatalysisPhylogenyCytoplasmCricetinaeNuclear Magnetic Resonance, BiomolecularModels, BiologicalOrgan SpecificityAntibodies, MonoclonalProtein-Tyrosine KinasesProtein MultimerizationHydrolysisGlutathione TransferaseProtein TransportCercopithecus aethiopsCells, CulturedCattleRNA, MessengerReproducibility of ResultsProlineEnzyme ActivationMagnetic Resonance SpectroscopyCHO CellsRepressor ProteinsCircular DichroismPrecipitin TestsSurface Plasmon ResonanceCysteineEscherichia coli ProteinsBlotting, WesternPromoter Regions, GeneticDrosophila ProteinsProtein Structure, TertiaryFungal ProteinsMolecular WeightZinc FingersEnzyme-Linked Immunosorbent AssayIntracellular Signaling Peptides and Proteins