Protein ConformationAmino AcidsSequence Homology, Amino AcidAmino Acid SequenceAmino Acid SubstitutionMolecular ConformationMolecular Sequence DataCloning, MolecularBinding SitesProtein BindingProtein Structure, TertiaryProtein Structure, SecondaryMutationKineticsEscherichia coliSequence AlignmentAmino Acids, EssentialStructure-Activity RelationshipMutagenesis, Site-DirectedAmino Acid MotifsAmino Acid Transport SystemsCrystallography, X-RayRecombinant ProteinsCircular DichroismPeptide FragmentsPeptidesDNABase SequenceMagnetic Resonance SpectroscopySubstrate SpecificityDNA, ComplementaryBacterial ProteinsProteinsProtein FoldingAmino Acids, AromaticSequence Homology, Nucleic AcidCell LineLeucineThermodynamicsMolecular WeightModels, MolecularAmino Acids, Branched-ChainElectrophoresis, Polyacrylamide GelRecombinant Fusion ProteinsAmino Acids, SulfurAlanineCattleHydrogen BondingPlasmidsLysineConserved SequenceRestriction MappingHydrogen-Ion ConcentrationTemperatureSequence Analysis, DNATrypsinTryptophanSolutionsDNA PrimersModels, ChemicalPhylogenyRNA, MessengerCarrier ProteinsPoint MutationLigandsCysteineMolecular StructureChromatography, High Pressure LiquidProlineNuclear Magnetic Resonance, BiomolecularGenes, BacterialMacromolecular SubstancesDimerizationSpecies SpecificityCatalytic DomainGlycineMutagenesisCatalysisArgininePolymerase Chain ReactionIsoleucineSaccharomyces cerevisiaeAmino Acid Transport Systems, BasicHydrolysisSpectrometry, FluorescenceBiological TransportCodonSequence DeletionMembrane ProteinsProtein DenaturationProtein Structure, QuaternaryPhenylalanineAmino Acids, BasicTranscription, GeneticAspartic AcidTransfectionComputer SimulationPolymorphism, Single-Stranded ConformationalProtein BiosynthesisEpitopes