Amino Acid SequenceAmino AcidsMolecular Sequence DataMutagenesis, Site-DirectedBinding SitesModels, MolecularProtein ConformationSequence Homology, Amino AcidKineticsBase SequenceCloning, MolecularHydrophobic and Hydrophilic InteractionsAmino Acid SubstitutionStructure-Activity RelationshipProtein Structure, SecondaryEscherichia coliProtein Structure, TertiarySequence AlignmentSubstrate SpecificityProtein BindingMutationPeptidesRecombinant ProteinsPeptide FragmentsAmino Acid MotifsLeucineMolecular WeightBacterial ProteinsRecombinant Fusion ProteinsSequence Homology, Nucleic AcidDNA, ComplementaryCell LineElectrophoresis, Polyacrylamide GelAmino Acids, NeutralIsoleucineDNAConserved SequenceCircular DichroismMembrane ProteinsProtein Sorting SignalsRestriction MappingPoint MutationMutagenesisPhenylalanineChromatography, High Pressure LiquidAlanineCell MembraneProteinsProtein FoldingPlasmidsHydrolysisCattleEndopeptidasesGenes, BacterialDNA PrimersOligopeptidesHydrogen-Ion ConcentrationTrypsinCOS CellsSolubilityCarrier ProteinsTryptophanCatalysisSequence DeletionCodonTransfectionGlutamineProtein Processing, Post-TranslationalEnzyme StabilityDNA Mutational AnalysisCrystallography, X-RayBiological TransportSaccharomyces cerevisiaeSpecies SpecificityGenesRNA, MessengerPhylogenyArginineCarboxypeptidasesConsensus SequenceProtein PrecursorsMacromolecular SubstancesEscherichia coli ProteinsTemperatureGene LibraryMagnetic Resonance SpectroscopyViral ProteinsValineLysineCysteineGlycoproteinsCricetinaeOpen Reading FramesCyanogen BromidePolymerase Chain ReactionAmino Acids, EssentialDNA-Binding ProteinsDNA, BacterialChromatography, GelSerine Endopeptidases