Sequence Analysis, DNAMolecular Sequence DataBase SequenceSequence Homology, Amino AcidAmino AcidsAmino Acid SequenceCloning, MolecularSequence AnalysisPhylogenySequence Homology, Nucleic AcidSequence AlignmentDNA, BacterialRNA, Ribosomal, 16SGenes, BacterialDNA, RibosomalAmino Acid SubstitutionRestriction MappingMutationPolymerase Chain ReactionEscherichia coliBacterial ProteinsDNA, ComplementaryDNAOpen Reading FramesSpecies SpecificitySequence Analysis, ProteinNucleic Acid HybridizationPlasmidsBase CompositionBinding SitesDNA PrimersRNA, MessengerMolecular WeightPeptide FragmentsGenesGenes, rRNAAmino Acids, EssentialRecombinant ProteinsAmino Acid MotifsMultigene FamilyGene LibraryConserved SequenceTranscription, GeneticElectrophoresis, Polyacrylamide GelGenetic VariationBacterial Typing TechniquesChromosome MappingAmino Acid Transport SystemsProtein ConformationBlotting, SouthernSequence HomologyCell LineMutagenesis, Site-DirectedKineticsModels, MolecularChromatography, High Pressure LiquidSubstrate SpecificityProtein Structure, TertiaryCodonRNA, BacterialEvolution, MolecularPhenotypeCattleBlotting, NorthernProteinsDNA Restriction EnzymesPeptidesStructure-Activity RelationshipProtein BindingDNA Mutational AnalysisGenetic Complementation TestExonsGenome, ViralRepetitive Sequences, Nucleic AcidDNA, Ribosomal SpacerPoint MutationTrypsinGenes, ViralCyanogen BromideDNA, ViralRecombinant Fusion ProteinsViral ProteinsDNA Transposable ElementsCarrier ProteinsDNA, FungalProtein BiosynthesisGene ExpressionSoil MicrobiologyOligonucleotide ProbesProtein Structure, SecondarySequence DeletionMutagenesis, InsertionalGenotypeCluster AnalysisAmino Acids, AromaticPromoter Regions, GeneticLeucineMembrane ProteinsGenomic LibrarySequence Analysis, RNA