Nutritional RequirementsCulture MediaAmino AcidsNutritional Physiological PhenomenaNutritional SupportVitaminsThiamineInfant Nutritional Physiological PhenomenaPurinesSequence Homology, Amino AcidCaseinsTrace ElementsMutationAnimal Nutritional Physiological PhenomenaNitrogenEscherichia coliDietary ProteinsMolecular Sequence DataDietAmino Acid SequenceMethionineGlucoseNeisseria gonorrhoeaeEnergy IntakeAcetatesAmino Acid SubstitutionFermentationCloning, MolecularBacteriological TechniquesAmino Acids, EssentialBase SequenceAmino Acid Transport SystemsSequence AlignmentBinding SitesKineticsAmino Acid MotifsMutagenesis, Site-DirectedRecombinant ProteinsStructure-Activity RelationshipAmino Acids, SulfurCell LineProtein BindingDNA, ComplementaryModels, MolecularProtein Structure, TertiaryProtein ConformationPeptide FragmentsSequence Homology, Nucleic AcidAmino Acids, AromaticSubstrate SpecificityLeucineAmino Acids, Branched-ChainBacterial ProteinsDNAPeptidesRecombinant Fusion ProteinsMolecular WeightPlasmidsProteinsRNA, MessengerRestriction MappingLysineGenes, BacterialPhylogenySequence Analysis, DNACarrier ProteinsElectrophoresis, Polyacrylamide GelAlanineDNA PrimersSpecies SpecificitySaccharomyces cerevisiaeCattleIsoleucineConserved SequenceTranscription, GeneticProtein Structure, SecondaryBiological TransportMutagenesisProtein BiosynthesisTransfectionMembrane ProteinsChromatography, High Pressure LiquidSequence DeletionDNA-Binding ProteinsPhenylalanineAmino Acid Transport Systems, BasicGenesCodonValineGlycineGlutamineArginineAmino Acids, BasicTrypsinPolymerase Chain ReactionCells, CulturedTranscription FactorsOpen Reading FramesTime FactorsPoint Mutation