DNA Topoisomerases, Type IDNA Topoisomerases, Type IIDNA TopoisomerasesTopoisomerase II InhibitorsTopoisomerase InhibitorsTopoisomerase I InhibitorsDNA, SuperhelicalProscillaridinAmsacrineDNA, CatenatedHydrogenCatenanesDNA GyraseDNA Topoisomerase IVHydrogen BondingTeniposideHydrogen PeroxideDNANovobiocinNucleic Acid ConformationHydrogen SulfideEscherichia coliCamptothecinModels, MolecularEukaryotic CellsMolecular Sequence DataDNA, CircularCatalysisBase SequencePlasmidsDNA ReplicationBinding SitesEnzyme InhibitorsDNA DamageSubstrate SpecificityDNA-Binding ProteinsAmino Acid SequenceSaccharomyces cerevisiaeKineticsDNA, BacterialAdenosine TriphosphateAntineoplastic AgentsDNA CleavageEllipticinesCollagen Type IIAminoacridinesQuinolonesCrithidiaFluoroquinolonesDNA, KinetoplastAminocoumarinsIntercalating AgentsMutationAnti-Infective AgentsEtoposideNaphthyridinesAntigens, NeoplasmIndenesProtein ConformationProtein BindingCrystallography, X-RayHydrogen CyanideMolecular StructureRecombinases4-QuinolonesProtein Structure, TertiaryModels, ChemicalStructure-Activity RelationshipSulfolobusElectrophoresis, Agar GelTriterpenesRecombinant ProteinsBacterial Proteins