DNA Topoisomerases, Type IDNA Topoisomerases, Type IIDNA TopoisomerasesTopoisomerase II InhibitorsTopoisomerase InhibitorsTopoisomerase I InhibitorsDNA, SuperhelicalEscherichia coli ProteinsEscherichia coliProscillaridinAmsacrineDNA, CatenatedDNA GyraseCatenanesDNA Topoisomerase IVTeniposideDNANovobiocinMolecular Sequence DataNucleic Acid ConformationEscherichia coli InfectionsPlasmidsBase SequenceDNA, BacterialAmino Acid SequenceCamptothecinModels, MolecularEukaryotic CellsBacterial ProteinsEscherichia coli O157DNA, CircularDNA ReplicationSubstrate SpecificityBinding SitesCatalysisKineticsGenes, BacterialMutationCloning, MolecularDNA-Binding ProteinsDNA DamageEnzyme InhibitorsAdenosine TriphosphateSaccharomyces cerevisiaeEscherichia coli K12EscherichiaDNA CleavageAntineoplastic AgentsRecombinant ProteinsGene Expression Regulation, BacterialQuinolonesAdhesins, Escherichia coliEllipticinesCollagen Type IIAminoacridinesFluoroquinolonesOperonSequence Homology, Amino AcidCrithidiaAnti-Bacterial AgentsAnti-Infective AgentsProtein BindingElectrophoresis, Polyacrylamide GelChromosomes, BacterialRNA, BacterialDNA, KinetoplastAminocoumarinsRecombination, GeneticTranscription, GeneticProtein ConformationTemperatureMolecular WeightBacterial Outer Membrane ProteinsColiphagesMutagenesis, Site-DirectedGenesIntercalating AgentsProtein Structure, TertiaryMicrobial Sensitivity TestsStructure-Activity RelationshipNaphthyridinesDrug Resistance, MicrobialGenetic Complementation TestRestriction MappingAdenosine TriphosphatasesEtoposideSequence AlignmentDNA PrimersAntigens, NeoplasmRecombinasesHydrolysisEnterotoxigenic Escherichia coliMutagenesisIndenesDNA RepairCattle4-QuinolonesCrystallography, X-RayShiga-Toxigenic Escherichia coliElectrophoresis, Agar Gel