QuinolonesEscherichia coli ProteinsDrug ResistanceDrug Resistance, BacterialDrug Resistance, MicrobialDrug Resistance, ViralDrug Resistance, NeoplasmEscherichia coliAnti-Infective AgentsFluoroquinolonesDrug Resistance, Multiple4-QuinolonesEscherichia coli InfectionsDNA GyraseMicrobial Sensitivity TestsAnti-Bacterial AgentsMutationCiprofloxacinBacterial ProteinsDNA Topoisomerase IVMolecular Sequence DataDrug Resistance, Multiple, BacterialGenes, BacterialDNA, BacterialPlasmidsBase SequenceNalidixic AcidAmino Acid SequenceNorfloxacinOfloxacinEscherichia coli O157NaphthyridinesDNA Topoisomerases, Type IICloning, MolecularDrug Resistance, FungalGene Expression Regulation, BacterialSequence Analysis, DNAConjugation, GeneticQuinolinesEscherichia coli K12Antitubercular AgentsEscherichiaPolymerase Chain ReactionDisease ResistanceDrug Resistance, Multiple, ViralP-GlycoproteinTopoisomerase II InhibitorsEnterobacteriaceaeVascular ResistanceGenotypeOperonKineticsLevofloxacinR Factorsbeta-LactamasesAza CompoundsAdhesins, Escherichia coliPseudomonas aeruginosaTuberculosis, Multidrug-ResistantFleroxacinStreptomycinAntineoplastic AgentsPhenotypeMembrane Transport ProteinsMultidrug Resistance-Associated ProteinsBacterial Outer Membrane ProteinsAnti-HIV AgentsMycobacterium tuberculosisStaphylococcus aureusPenicillin ResistanceEnoxacinEnterobacteriaceae InfectionsChromosomes, BacterialChloramphenicolRecombinant ProteinsATP-Binding Cassette TransportersSequence Homology, Amino AcidCulture MediaHIV-1TetracyclineRNA, BacterialGenetic Complementation TestHIV ProteaseAntimalarialsTetracycline ResistanceRifampinKlebsiella pneumoniaeBacteriaGram-Negative BacteriaBinding SitesStreptococcus pneumoniaeHIV Reverse TranscriptaseHIV InfectionsDNA PrimersGenesColiphagesModels, MolecularCell Line, TumorCarrier ProteinsGenes, MDR