Amino Acid SubstitutionAmino Acid SequenceMolecular Sequence DataAmino AcidsSequence Homology, Amino AcidMutagenesis, Site-DirectedBase SequenceMutationHydrophobic and Hydrophilic InteractionsStructure-Activity RelationshipBinding SitesModels, MolecularCloning, MolecularProtein ConformationSequence AlignmentEscherichia coliProtein Structure, TertiaryPoint MutationProtein Structure, SecondarySubstrate SpecificityProtein BindingKineticsRecombinant ProteinsPeptidesLeucineAmino Acid MotifsCell LineBacterial ProteinsMutagenesisDNA Mutational AnalysisPeptide FragmentsIsoleucineCodonAmino Acids, NeutralRecombinant Fusion ProteinsSequence Homology, Nucleic AcidConserved SequenceDNAPhylogenyAlaninePhenylalaninePlasmidsDNA PrimersMolecular WeightMembrane ProteinsElectrophoresis, Polyacrylamide GelMutation, MissenseDNA, ComplementarySequence Analysis, DNAProteinsProtein Sorting SignalsPolymerase Chain ReactionRestriction MappingProtein FoldingCircular DichroismCell MembraneEvolution, MolecularCOS CellsViral ProteinsTransfectionEnzyme StabilityHydrolysisGenetic VariationSequence DeletionValineEndopeptidasesSpecies SpecificityGenes, BacterialCarrier ProteinsGlutamineViral Envelope ProteinsOligopeptidesSolubilityChromatography, High Pressure LiquidSaccharomyces cerevisiaeCattleCricetinaeCatalysisTemperatureEscherichia coli ProteinsConsensus SequenceArginineGenesCercopithecus aethiopsTryptophanBiological TransportProtein EngineeringDNA-Binding ProteinsDNA, BacterialHydrogen-Ion ConcentrationProtein Processing, Post-TranslationalPhenotypeRNA, MessengerAllelesTranscription, GeneticCrystallography, X-RayMacromolecular SubstancesAmino Acids, EssentialTrypsinProtein Precursors