PhenylalanineAspartic AcidPhenylalanine HydroxylasePhenylalanine Ammonia-LyaseAspartic Acid ProteasesAspartic Acid EndopeptidasesPhenylketonuriasAmino Acid SequenceAmino AcidsMolecular Sequence DataMutagenesis, Site-DirectedAsparagineBinding SitesMutationKineticsTyrosinePhenylpyruvic AcidsBase SequenceAmino Acid SubstitutionPepstatinsModels, MolecularStructure-Activity RelationshipProtein ConformationEscherichia coliSubstrate SpecificityGlutamatesRecombinant ProteinsAmmonia-LyasesAlanineIsoaspartic AcidHistidineHydrogen-Ion ConcentrationCathepsin ESequence Homology, Amino AcidGlycineLeucineTryptophanCloning, MolecularPrephenate DehydrataseCatalysisSerinePoint MutationPepsin ABiopterinPeptidesProtein BindingProtein Structure, TertiaryPterinsSequence AlignmentPeptide FragmentsCarbon IsotopesCatalytic DomainLysinePhosphorylationEndopeptidasesCell LineElectrophoresis, Polyacrylamide GelGlutamic AcidThreonineProtein Structure, SecondaryAmino Acids, AromaticMolecular WeightOligopeptidesAspartate-tRNA LigaseCathepsin DConserved SequencePhenylalanine-tRNA LigasePhenylketonuria, MaternalHydro-LyasesChromatography, High Pressure LiquidFencloninep-FluorophenylalanineBacterial ProteinsLiverHydrolysisStereoisomerismTrypsinProtease InhibitorsValineIsoleucineChromatography, PaperPlasmidsTransfectionChorismate MutaseCarbohydratesProlineMutation, MissenseDNA PrimersArginineEnzyme StabilityCrystallography, X-RayMutagenesisChromatography, GelChemistryChemical PhenomenaCircular DichroismHydrogen BondingRecombinant Fusion ProteinsMethionineCattle