DNA DamageCheckpoint Kinase 2Cell Cycle ProteinsDNA RepairGenes, cdcM Phase Cell Cycle CheckpointsAtaxia Telangiectasia Mutated ProteinsProtein-Serine-Threonine KinasesG2 PhaseCell CycleMitosisCell Cycle CheckpointsComet AssayProtein KinasesS PhaseG2 Phase Cell Cycle CheckpointsSpindle ApparatusDNA-Binding ProteinsDNA ReplicationUltraviolet RaysNuclear ProteinsHydroxyureaTumor Suppressor Protein p53KinetochoresS Phase Cell Cycle CheckpointsSaccharomyces cerevisiae ProteinsDNA Breaks, Double-StrandedTumor Suppressor ProteinsPhosphorylationGamma RaysSchizosaccharomyces pombe ProteinsMutationMethyl MethanesulfonateSchizosaccharomycesGenomic InstabilitySaccharomyces cerevisiaeNocodazoleHistonescdc25 PhosphatasesApoptosisHeLa CellsCdc20 ProteinsSignal TransductionDNADeoxyguanosineG1 PhaseChromosome SegregationCell Line, TumorCDC2 Protein KinaseIntracellular Signaling Peptides and ProteinsMutagensCyclin BCell LineFungal ProteinsAnaphaseDNA, FungalOxidative StressRadiation ToleranceDose-Response Relationship, RadiationDNA Repair EnzymesChromosomal InstabilityCell SurvivalModels, BiologicalRadiation, IonizingChromosomal Proteins, Non-HistoneReplication Protein AProtein BindingRNA, Small InterferingChromatinMetaphaseRad51 RecombinaseBRCA1 ProteinCell NucleusAtaxia TelangiectasiaFibroblastsMolecular Sequence DataUbiquitin-Protein Ligase ComplexesAnaphase-Promoting Complex-CyclosomeCyclin-Dependent Kinase Inhibitor p21Nucleic Acid Synthesis InhibitorsAurora KinasesDNA HelicasesRNA InterferenceRecombination, GeneticCells, CulturedTelomereHCT116 CellsDNA BreaksExodeoxyribonucleasesRepressor ProteinsTime FactorsCell DivisionPoly(ADP-ribose) PolymerasesAmino Acid SequenceRecombinational DNA RepairCalcium-Binding ProteinsGene DeletionEndodeoxyribonucleasesCyclin B1Cell Aging