Cell CycleCell Cycle ProteinsGenes, cdcCheckpoint Kinase 2DNA DamageG2 PhaseCell Cycle CheckpointsMitosisProtein-Serine-Threonine KinasesAtaxia Telangiectasia Mutated ProteinsS PhaseProtein KinasesDNA RepairHydroxyureaG2 Phase Cell Cycle CheckpointsSpindle ApparatusM Phase Cell Cycle CheckpointsG1 PhaseDNA-Binding ProteinsNuclear ProteinsDNA ReplicationGamma RaysTumor Suppressor Protein p53Mad2 ProteinsSaccharomyces cerevisiae ProteinsSchizosaccharomycesTumor Suppressor ProteinsSchizosaccharomyces pombe ProteinsFungal ProteinsMutationSaccharomyces cerevisiaeAtaxia Telangiectasiacdc25 PhosphatasesChromosomal InstabilityRadiation, IonizingPhosphorylationCyclinsUltraviolet RaysCyclin-Dependent Kinase Inhibitor p21CDC2 Protein KinaseGenes, FungalCyclin BRadiation ToleranceCell DivisionIntracellular Signaling Peptides and ProteinsApoptosisGenomic InstabilityG1 Phase Cell Cycle CheckpointsMolecular Sequence DataCyclin B1DNA, FungalS Phase Cell Cycle CheckpointsCell LineNocodazoleSignal TransductionCell Line, TumorHeLa CellsDNA Breaks, Double-StrandedRetinoblastoma ProteinGene DeletionFibroblastsAneuploidyBase SequenceModels, BiologicalBRCA1 ProteinRepressor ProteinsCDC28 Protein Kinase, S cerevisiaeFlow CytometryCyclin-Dependent Kinase 2HistonesChromosomes, FungalGenes, p53KinetochoresDNAPhenotypeTumor Cells, CulturedCell ProliferationCell NucleusNeoplasm ProteinsCyclin EMimosineDNA Repair EnzymesMethyl MethanesulfonateCell SurvivalCells, CulturedCDC2-CDC28 KinasesCaffeineCyclin-Dependent KinasesProtein BindingCalcium-Binding ProteinsRNA, Small InterferingAmino Acid SequenceGene Expression Regulation, NeoplasticCyclin AAphidicolinAllelesNucleic Acid Synthesis InhibitorsPolyploidyTime FactorsCentrosome