DNA DamageDNA Mutational AnalysisDNA RepairComet AssayUltraviolet RaysDeoxyguanosineMutationMolecular Sequence DataBase SequenceMutagensCell Cycle ProteinsDNA-Binding ProteinsDNAGamma RaysDNA ReplicationAmino Acid SequenceCell CycleMutagenesis, Site-DirectedEscherichia coliAtaxia Telangiectasia Mutated ProteinsApoptosisBinding SitesCell LineTumor Suppressor Protein p53Protein BindingProtein Structure, TertiaryMutagenesisProtein-Serine-Threonine KinasesCheckpoint Kinase 2Nuclear ProteinsTumor Suppressor ProteinsModels, MolecularSequence Homology, Amino AcidDNA Breaks, Double-StrandedOxidative StressPhosphorylationSaccharomyces cerevisiaeHistonesHeLa CellsTranscription FactorsTranscription, GeneticAmino Acid SubstitutionPoint MutationSaccharomyces cerevisiae ProteinsSignal TransductionConserved SequenceStructure-Activity RelationshipMethyl MethanesulfonatePromoter Regions, GeneticPlasmidsTransfectionSequence AlignmentBacterial ProteinsAmino Acid MotifsGenomic InstabilityCell Line, TumorSequence DeletionG2 PhaseProtein KinasesRecombinant ProteinsRecombinant Fusion ProteinsCell NucleusCells, CulturedDNA PrimersHydrogen PeroxideCell SurvivalGene DeletionDNA Repair EnzymesDose-Response Relationship, RadiationDNA AdductsDNA GlycosylasesMutation, MissenseNucleic Acid ConformationReactive Oxygen SpeciesPhenotypeModels, BiologicalProtein ConformationDNA BreaksEscherichia coli ProteinsRadiation ToleranceFibroblastsCloning, MolecularPoly(ADP-ribose) PolymerasesGenes, cdcCell Cycle CheckpointsCarrier ProteinsS PhaseIntracellular Signaling Peptides and ProteinsDNA Breaks, Single-StrandedMitosisKineticsRad51 RecombinaseRepressor ProteinsProtein Structure, SecondaryGene Expression RegulationDNA HelicasesBlotting, WesternSerineRNA, MessengerFungal Proteins