Rats, Mutant StrainsAscorbic Acid DeficiencyMutationEscherichia coliBacterial ProteinsMolecular Sequence DataGenes, BacterialGenetic Complementation TestPhenotypeGene Expression Regulation, BacterialVirulenceAmino Acid SequenceSequence Analysis, DNAGene DeletionMutant ProteinsPlasmidsMutagenesis, InsertionalCloning, MolecularSpecies SpecificityDNA, BacterialMice, Mutant StrainsCulture MediaBase SequenceTemperatureFungal ProteinsMutagenesis, Site-DirectedSequence Homology, Amino AcidEscherichia coli ProteinsDrug Resistance, MicrobialOperonMice, Inbred StrainsRNA, Ribosomal, 16SAnti-Bacterial AgentsDNA Transposable ElementsSaccharomyces cerevisiae ProteinsChromosome MappingCell LineKineticsDNA, RibosomalPolymerase Chain ReactionSalmonella typhimuriumRNA, BacterialTranscription, GeneticVirulence FactorsMicrobial Sensitivity TestsDNA PrimersRestriction MappingBacterial AdhesionGenotypeBacterial Typing TechniquesRecombination, GeneticSaccharomyces cerevisiaeSequence AlignmentBacterial Outer Membrane ProteinsAllelesAmino Acid SubstitutionGenesProtein Binding