DNA Breaks, Double-StrandedDNA RepairDNA DamageDNAAntigens, NuclearDNA Breaks, Single-StrandedRecombination, GeneticDNA-Binding ProteinsAtaxia Telangiectasia Mutated ProteinsDNA-Activated Protein KinaseComet AssayDNA, Single-StrandedGamma RaysRad51 RecombinaseZinostatinRadiation, IonizingDNA End-Joining RepairCell Cycle ProteinsDNA BreaksDNA LigasesDNA ReplicationDNA HelicasesHistonesBase SequenceNuclear ProteinsMutationDNA Repair EnzymesMolecular Sequence DataProtein-Serine-Threonine KinasesTumor Suppressor ProteinsDose-Response Relationship, RadiationGenomic InstabilityPoly(ADP-ribose) PolymerasesRadiation ToleranceFicusinEndodeoxyribonucleasesGlycolatesNucleic Acid ConformationCell LinePlasmidsX-RaysEndonucleasesAtaxia TelangiectasiaChromosome BreakageExodeoxyribonucleasesUltraviolet RaysMeiosisHomologous RecombinationDeoxyribonucleases, Type II Site-SpecificMeiotic Prophase ICell CycleRec A RecombinasesSaccharomyces cerevisiae ProteinsEscherichia coliChromatinCell SurvivalSaccharomyces cerevisiaeMutagensPhleomycinsLinear Energy TransferHeLa CellsProtein BindingKineticsTelomereDNA Topoisomerases, Type IIRad52 DNA Repair and Recombination ProteinDNA, FungalCell Line, TumorRecQ HelicasesBleomycinDeoxyribonucleasesCell NucleusPhosphorylationDNA Polymerase betaModels, GeneticMethyl MethanesulfonateCricetinaeNucleic Acid DenaturationDNA, NeoplasmFibroblastsAmino Acid SequenceEnediynesChromosomal InstabilityDNA-Directed DNA PolymeraseSubstrate SpecificityProtein Structure, TertiaryModels, MolecularCheckpoint Kinase 2Tumor Suppressor Protein p53S PhaseChromosome PairingAdenovirus E4 ProteinsDNA, ViralAphidicolinPhthalazinesDNA, BacterialMitomycinNucleic Acid HeteroduplexesCross-Linking ReagentsOligonucleotides