DNA, SuperhelicalNucleic Acid ConformationDNA, CircularBase SequenceMolecular Sequence DataDNA Topoisomerases, Type IEthidiumDNAPlasmidsOsmium TetroxideDNA, ViralDNA, BacterialElectrophoresis, Agar GelSimian virus 40Cloning, MolecularSequence Analysis, DNAEscherichia coliAmino Acid SequenceBase CompositionGenomic LibraryEndonucleasesPolymerase Chain ReactionSingle-Strand Specific DNA and RNA EndonucleasesDeoxyribonucleasesGenomic InstabilityRestriction MappingNucleic Acid DenaturationColiphagesNucleic Acid HybridizationHistonesGenomicsTranscription, GeneticDNA Restriction EnzymesPhylogenyGenesCarbodiimidesDNA, Single-StrandedNucleosomesComparative Genomic HybridizationDeoxyribonucleoproteinsGenomePolydeoxyribonucleotidesBlotting, SouthernBromosuccinimideOsmolar ConcentrationMutationChromosome MappingExonsGenome, HumanDNA ReplicationKineticsSodium ChlorideChromatinRepetitive Sequences, Nucleic AcidSequence Homology, Nucleic AcidDeoxyribonuclease BamHITyrothricinCentrifugation, Density GradientGenomic IslandsPromoter Regions, GeneticDNA Topoisomerases, Type IIProtein BindingNucleoproteinsGenome, BacterialBinding SitesIntronsNovobiocinBacterial ProteinsMicroscopy, Electron