Substrate SpecificityAvian ProteinsKineticsStructure-Activity RelationshipMolecular Sequence DataAmino Acid SequenceBinding SitesCatalysisModels, MolecularHydrolysisProtein BindingEscherichia coliCatalytic DomainHydrogen-Ion ConcentrationRecombinant ProteinsCrystallography, X-RayProtein ConformationProtein Structure, TertiaryBase SequencePhosphorylationSequence Homology, Amino AcidMutagenesis, Site-DirectedMutationOxidation-ReductionBacterial ProteinsCloning, MolecularAdenosine TriphosphateMolecular StructureModels, ChemicalEnzyme ActivationElectrophoresis, Polyacrylamide GelCell LineStereoisomerismMolecular WeightSequence AlignmentSubstrate CyclingIsoenzymesEscherichia coli ProteinsEndopeptidasesTemperatureCattlePeptidesChromatography, High Pressure LiquidOligopeptidesAmino AcidsEnzyme StabilitySaccharomyces cerevisiaeBiological TransportEnzyme InhibitorsModels, BiologicalLiverAmino Acid Substitution