Sequence Homology, Amino AcidAmino Acid SequenceAmino AcidsSequence Homology, Nucleic AcidMolecular Sequence DataCloning, MolecularBase SequenceSequence AlignmentAmino Acid SubstitutionSequence HomologyEscherichia coliDNA, ComplementaryBinding SitesDNAModels, MolecularMutationRestriction MappingProtein Structure, TertiaryGenesProtein ConformationRecombinant ProteinsAmino Acids, EssentialGenes, BacterialSequence Analysis, DNAAmino Acid MotifsBacterial ProteinsPhylogenyPeptide FragmentsProtein BindingAmino Acid Transport SystemsPlasmidsSpecies SpecificityMolecular WeightMutagenesis, Site-DirectedRNA, MessengerKineticsSubstrate SpecificityCell LineNucleic Acid HybridizationConserved SequenceProteinsStructure-Activity RelationshipOpen Reading FramesPeptidesRecombinant Fusion ProteinsDNA Restriction EnzymesCarrier ProteinsGene LibraryDNA, BacterialProtein Structure, SecondaryElectrophoresis, Polyacrylamide GelDNA PrimersTranscription, GeneticPolymerase Chain ReactionMultigene FamilySaccharomyces cerevisiaeCattleAmino Acids, AromaticLeucineStructural Homology, ProteinAmino Acids, Branched-ChainMembrane ProteinsBlotting, NorthernAmino Acids, SulfurTrypsinCyanogen BromideChromosome MappingChromatography, High Pressure LiquidTransfectionsrc Homology DomainsCodonBlotting, SouthernViral ProteinsSequence AnalysisGene ExpressionPlant ProteinsProtein BiosynthesisGenes, ViralSequence Analysis, ProteinDNA-Binding ProteinsProblem SolvingAlanineSequence DeletionMacromolecular SubstancesBiological EvolutionGenetic Complementation TestEvolution, MolecularMutagenesisRepetitive Sequences, Nucleic AcidFungal ProteinsLysineBiological TransportCOS CellsCrystallography, X-RayGenes, FungalChickensRNARabbitsCysteineTranscription Factors