DNA Breaks, Double-StrandedDNA RepairDNA DamageAntigens, NuclearDNA-Activated Protein KinaseAtaxia Telangiectasia Mutated ProteinsDNA-Binding ProteinsDNADNA End-Joining RepairRadiation, IonizingRecombination, GeneticGamma RaysCell Cycle ProteinsZinostatinRad51 RecombinaseHistonesNuclear ProteinsComet AssayDNA Repair EnzymesProtein-Serine-Threonine KinasesTumor Suppressor ProteinsRadiation ToleranceGenomic InstabilityDNA LigasesDose-Response Relationship, RadiationDNA HelicasesGlycolatesDNA Breaks, Single-StrandedMutationDNA, Single-StrandedDNA ReplicationPoly(ADP-ribose) PolymerasesAtaxia TelangiectasiaCell LineChromatinCell CycleLinear Energy TransferEndodeoxyribonucleasesChromosome BreakageMutagensX-RaysPhosphorylationBase SequenceMolecular Sequence DataExodeoxyribonucleasesCell Line, TumorSaccharomyces cerevisiae ProteinsTelomereCell SurvivalRecQ HelicasesMeiosisUltraviolet RaysPlasmidsChromosomal InstabilityHeLa CellsSaccharomyces cerevisiaeVDJ RecombinasesBleomycinProtein BindingFibroblastsCheckpoint Kinase 2Cell NucleusCricetinaeDNA BreaksTumor Suppressor Protein p53Deoxyribonucleases, Type II Site-SpecificCHO CellsG2 PhaseNucleic Acid ConformationS PhaseEndonucleasesCricetulusChromosomal Proteins, Non-HistoneDNA, NeoplasmProtein Structure, TertiaryHomologous RecombinationModels, GeneticFicusinKineticsIntracellular Signaling Peptides and ProteinsApoptosisCells, CulturedTime FactorsBlotting, WesternAmino Acid SequenceModels, BiologicalMethyl MethanesulfonateMeiotic Prophase IRad52 DNA Repair and Recombination ProteinRNA, Small InterferingDNA, FungalEscherichia coliPhleomycinsDNA Topoisomerases, Type IISignal TransductionFluorescent Antibody TechniqueAntineoplastic AgentsMice, KnockoutChromosome PairingNucleic Acid Denaturation