DNA, CircularDNA Breaks, Single-StrandedDNA, Single-StrandedDNA DamageNucleic Acid Renaturationtert-ButylhydroperoxideDeoxycytosine NucleotidesNucleic Acid DenaturationCircular DichroismComet AssayMicroscopy, ElectronGenome, MitochondrialDNACentrifugation, Density GradientExtrachromosomal InheritanceDNA, MitochondrialDNA, ViralDNA RepairPoly(ADP-ribose) PolymerasesDeoxyribonucleasesNucleic Acid ConformationBase SequenceMolecular Sequence DataDNA ReplicationPlasmidsDNA Restriction EnzymesCell SurvivalElectrophoresis, Agar GelMolecular WeightEscherichia coliEndonucleasesNucleic Acid HybridizationRecombination, GeneticRepetitive Sequences, Nucleic AcidDNA, BacterialTritiumRNA, RibosomalCell Adhesion MoleculesBase CompositionCell LinePhylogenyAmino Acid SequenceProtein ConformationModels, MolecularProtein BindingBinding SitesProtein Structure, SecondarySmall Molecule LibrariesKineticsSpectrophotometry, UltravioletSpectrometry, FluorescenceProtein Structure, TertiaryProtein DenaturationPeptidesRecombinant ProteinsStructure-Activity RelationshipProtein FoldingThermodynamicsCells, CulturedSignal TransductionTemperatureMolecular StructureNeural Cell Adhesion MoleculesPeptide FragmentsMagnetic Resonance SpectroscopyMutationCloning, MolecularMolecular ConformationMuscle, SmoothCrystallography, X-RayElectrophoresis, Polyacrylamide GelLigandsAntibodies, MonoclonalIntercellular Adhesion Molecule-1Hydrogen-Ion ConcentrationBacterial ProteinsCell AdhesionModels, BiologicalMembrane ProteinsMacromolecular SubstancesSequence Homology, Amino AcidWaterCattleDNA, SuperhelicalRNAAntigens, CDCell MembraneProteinsMice, Inbred C57BLRNA, MessengerTransfectionT-LymphocytesRecombinant Fusion ProteinsDimerizationMembrane GlycoproteinsSolutionsTime FactorsHistocompatibility Antigens Class IHistocompatibility Antigens Class IIHydrogen Bonding