Amino AcidsSequence Homology, Amino AcidAmino Acid SequenceAmino Acid SubstitutionCloning, MolecularAmino Acids, EssentialAmino Acid Transport SystemsSequence AlignmentBase SequenceMutationAmino Acid MotifsEscherichia coliMolecular Sequence DataBinding SitesKineticsMutagenesis, Site-DirectedNeutral RedDNA, ComplementaryAmino Acids, AromaticSequence Homology, Nucleic AcidProtein ConformationPeptide FragmentsModels, MolecularRecombinant ProteinsLeucineAmino Acids, Branched-ChainAmino Acids, SulfurStructure-Activity RelationshipSubstrate SpecificityMolecular WeightProtein Structure, TertiaryDNAAmino Acids, NeutralProtein BindingPeptidesNeutral CeramidaseBacterial ProteinsCell LinePhylogenyRestriction MappingAlanineHydrogen-Ion ConcentrationElectrophoresis, Polyacrylamide GelSequence Analysis, DNAProteinsAmino Acid Transport Systems, BasicChromatography, High Pressure LiquidRecombinant Fusion ProteinsGenes, BacterialProtein Structure, SecondaryRNA, MessengerSpecies SpecificityPlasmidsCarrier ProteinsLysineConserved SequenceBiological TransportCattleIsoleucineDNA PrimersAmino Acids, BasicCodonTrypsinAmino Acids, DiaminoGlycineEvolution, MolecularGlutamineCyanogen BromideGenesArginineAmino Acid Transport System AOpen Reading FramesPhenylalanineValineAspartic AcidMethionineSaccharomyces cerevisiaeProtein BiosynthesisNitrogenTryptophanProlineNeutral GlycosphingolipidsPolymerase Chain ReactionSequence DeletionSequence AnalysisGene LibraryPoint MutationExcitatory Amino AcidsCysteineMutagenesisNeprilysinMembrane ProteinsEndopeptidasesHydrolysisTransfectionChromatography, GelRabbitsTranscription, GeneticMacromolecular SubstancesDNA, Bacterial