DNA Topoisomerases, Type IIDNA Topoisomerases, Type ITopoisomerase II InhibitorsAmsacrineDNA TopoisomerasesTopoisomerase I InhibitorsTopoisomerase InhibitorsTeniposideDNA, SuperhelicalDNADNA Topoisomerase IVDNA, CatenatedNovobiocinProscillaridinDNA GyraseEtoposideCatenanesCamptothecinEllipticinesNucleic Acid ConformationBase SequenceDNA DamageEscherichia coliMolecular Sequence DataPodophyllotoxinDNA, CircularRazoxaneIntercalating AgentsDNA CleavageDNA-Binding ProteinsEnzyme InhibitorsPlasmidsAntigens, NeoplasmDNA ReplicationEukaryotic CellsAntineoplastic AgentsSubstrate SpecificityAminoacridinesModels, MolecularCatalysis