Amino Acid SequenceAmino AcidsSerineMolecular Sequence DataSequence Homology, Amino AcidCloning, MolecularBase SequenceMutagenesis, Site-DirectedAmino Acid SubstitutionBinding SitesModels, MolecularSequence AlignmentEscherichia coliProtein ConformationMutationKineticsStructure-Activity RelationshipProtein Structure, TertiaryRecombinant ProteinsPeptide FragmentsProtein BindingSubstrate SpecificitySerine EndopeptidasesProtein Structure, SecondaryDNA, ComplementaryPeptidesAmino Acid MotifsBacterial ProteinsSequence Homology, Nucleic AcidLysineCell LineArginine KinaseRecombinant Fusion ProteinsMolecular WeightDNAConserved SequenceElectrophoresis, Polyacrylamide GelTrypsinCysteineRestriction MappingArginine VasopressinPlasmidsAlanineChromatography, High Pressure LiquidDNA PrimersGenes, BacterialCyanogen BromideCatalysisAmino Acids, EssentialAmino Acid Transport SystemsPoint MutationCattleMutagenesisProteinsAspartic AcidHistidineSerine Proteinase InhibitorsLeucinePhosphorylationHydrogen-Ion ConcentrationCircular DichroismRNA, MessengerCarrier ProteinsHydrolysisCatalytic DomainSequence Analysis, DNASpecies SpecificityPhylogenyCrystallography, X-RayTransfectionGlycineSerine ProteasesSequence DeletionProtein Processing, Post-TranslationalAmino Acids, BasicSaccharomyces cerevisiaeThreonineMembrane ProteinsChymotrypsinPeptide MappingProlineTryptophanAmino Acids, AromaticArginineCodonMagnetic Resonance SpectroscopyCOS CellsMacromolecular SubstancesEndopeptidasesGlutamineSequence AnalysisOrnithineEnzyme StabilityIsoleucineGenesPolymerase Chain ReactionProtein PrecursorsCell MembraneChromatography, GelGene Library