DNA DamageDNA RepairPeptide FragmentsComet AssayAtaxia Telangiectasia Mutated ProteinsUltraviolet RaysCell Cycle ProteinsMolecular Sequence DataDNA-Binding ProteinsDNADeoxyguanosineCheckpoint Kinase 2Tumor Suppressor Protein p53Base SequencePolymorphism, Restriction Fragment LengthProtein-Serine-Threonine KinasesDNA Breaks, Double-StrandedImmunoglobulin Fab FragmentsAmino Acid SequenceOxidative StressCell CycleTumor Suppressor ProteinsGamma RaysMutationApoptosisNuclear ProteinsDNA ReplicationCell LineMethyl MethanesulfonateMutagensHistonesImmunoglobulin FragmentsGenomic InstabilityG2 PhasePhosphorylationCell Line, TumorProtein BindingCloning, MolecularCell SurvivalDose-Response Relationship, RadiationCells, CulturedDNA AdductsDNA Repair EnzymesEscherichia coliHeLa CellsPlasmidsProtein KinasesHydrogen PeroxideReactive Oxygen SpeciesSignal TransductionPoly(ADP-ribose) PolymerasesDNA BreaksRadiation ToleranceSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsCell Cycle CheckpointsGenes, cdcDNA Breaks, Single-StrandedCell NucleusDNA GlycosylasesFibroblastsRad51 RecombinaseDNA, BacterialPolymerase Chain ReactionTranscription, GeneticTime FactorsS PhaseBinding SitesMitosisBRCA1 ProteinRecombination, GeneticProtein Structure, TertiaryDNA Restriction EnzymesChromatinMicronucleus TestsCell AgingModels, BiologicalDNA, FungalBlotting, WesternHydroxyureaIntracellular Signaling Peptides and ProteinsKineticsX-RaysOxidation-ReductionAntioxidantsDNA-Activated Protein KinaseAlkylating AgentsDNA HelicasesDNA PrimersG2 Phase Cell Cycle CheckpointsReplication Protein AGene Expression RegulationRestriction MappingRecombinant ProteinsCell DeathEndonucleasesMolecular WeightRNA, MessengerRecombinational DNA RepairRNA, Small Interfering