Nucleic Acid ConformationDNAPolydeoxyribonucleotidesBase PairingNucleic Acid DenaturationBase SequenceModels, MolecularMolecular Sequence DataProtein Structure, SecondaryCircular DichroismHydrogen BondingDNA, SuperhelicalOligodeoxyribonucleotidesThermodynamicsMagnetic Resonance SpectroscopyBase CompositionPhysicochemical PhenomenaDNA Breaks, Double-StrandedAmino Acid SequenceChemistry, PhysicalBiophysical PhenomenaOsmolar ConcentrationHelix (Snails)Models, ChemicalPeptidesDNA-Binding ProteinsDNA RepairBinding SitesKineticsTemperatureIntercalating AgentsProtein BindingDNA DamagePoly A-UPoly dA-dTOligonucleotidesX-Ray DiffractionDNA-Activated Protein KinaseOsmium TetroxideAntigens, NuclearAtaxia Telangiectasia Mutated ProteinsMutationDNA, B-FormDNA, Single-StrandedHistonesProflavineProtein ConformationCrystallography, X-RayEscherichia coliRadiation, IonizingDNA End-Joining RepairBiophysicsProtein Structure, TertiaryDNA HelicasesGamma RaysEthidiumRecombination, GeneticPolynucleotidesModels, StructuralCell Cycle ProteinsPlasmidsRNAMathematicsDNA ReplicationStatic ElectricityStructure-Activity RelationshipNuclear ProteinsSpectrophotometry, UltravioletZinostatinNuclear Magnetic Resonance, BiomolecularNucleic Acid HeteroduplexesRad51 RecombinaseSolutionsChromatinCrystallographyDNA, CircularCrystallizationProtein-Serine-Threonine KinasesAdenineTumor Suppressor ProteinsCross-Linking ReagentsGenomic InstabilityRadiation ToleranceGuanineDose-Response Relationship, RadiationMolecular ConformationDrug StabilityComputer SimulationDiethyl PyrocarbonateModels, GeneticMicroscopy, Atomic ForceDNA Repair EnzymesAcridinesDNA Topoisomerases, Type IINucleosomesPoly TGramicidinMolecular StructureDNA LigasesNucleic Acid Renaturation