DNA DamageCell CycleCell Cycle ProteinsDNA RepairGenes, cdcCheckpoint Kinase 2G2 PhaseCell Cycle CheckpointsProtein-Serine-Threonine KinasesAtaxia Telangiectasia Mutated ProteinsMitosisS PhaseDNA-Binding ProteinsProtein KinasesUltraviolet RaysNuclear ProteinsHydroxyureaGamma RaysDNA ReplicationG2 Phase Cell Cycle CheckpointsTumor Suppressor Protein p53DNA Breaks, Double-StrandedSpindle ApparatusMutationTumor Suppressor ProteinsM Phase Cell Cycle CheckpointsSaccharomyces cerevisiae ProteinsG1 PhaseSaccharomyces cerevisiaeSchizosaccharomycesDNA Repair EnzymesSchizosaccharomyces pombe ProteinsFungal ProteinsGenomic InstabilityRadiation, IonizingMad2 ProteinsPhosphorylationRadiation ToleranceAtaxia TelangiectasiaApoptosiscdc25 PhosphatasesChromosomal InstabilityComet AssayCyclin-Dependent Kinase Inhibitor p21DNAGenes, FungalMolecular Sequence DataMethyl MethanesulfonateCyclinsCDC2 Protein KinaseIntracellular Signaling Peptides and ProteinsCell LineDNA, FungalCell Line, TumorCyclin BHeLa CellsCell DivisionSignal TransductionHistonesFibroblastsBRCA1 ProteinBase SequenceRecombination, GeneticModels, BiologicalG1 Phase Cell Cycle CheckpointsGene DeletionMutagensCell SurvivalS Phase Cell Cycle CheckpointsDose-Response Relationship, RadiationRad51 RecombinaseCell NucleusCyclin B1NocodazoleDNA HelicasesCells, CulturedDNA End-Joining RepairFlow CytometryDNA-Activated Protein KinaseEndonucleasesDNA GlycosylasesProtein BindingRetinoblastoma ProteinGenes, p53PhenotypeCell ProliferationEndodeoxyribonucleasesPoly(ADP-ribose) PolymerasesTime FactorsChromosomes, FungalTumor Cells, CulturedRepressor ProteinsAmino Acid SequenceDNA Mismatch RepairAneuploidyRNA, Small InterferingDNA LigasesBase Pair MismatchCyclin-Dependent Kinase 2Neoplasm Proteins