Cell CycleCell Cycle ProteinsGenes, cdcCheckpoint Kinase 2DNA DamageMitosisG2 PhaseProtein-Serine-Threonine KinasesCell Cycle CheckpointsSpindle ApparatusMad2 ProteinsM Phase Cell Cycle CheckpointsProtein KinasesAtaxia Telangiectasia Mutated ProteinsS PhaseDNA RepairHydroxyureaSaccharomyces cerevisiae ProteinsNuclear ProteinsEukaryotic CellsDNA ReplicationSchizosaccharomyces pombe ProteinsG2 Phase Cell Cycle CheckpointsSchizosaccharomycesDNA-Binding ProteinsKinetochoresSaccharomyces cerevisiaeG1 PhaseFungal ProteinsMutationPhosphorylationTumor Suppressor Protein p53Gamma RaysTumor Suppressor ProteinsMolecular Sequence DataNocodazoleCdc20 ProteinsChromosomal InstabilityCDC2 Protein KinaseRadiation, IonizingCyclin BUltraviolet RaysHeLa Cellscdc25 PhosphatasesIntracellular Signaling Peptides and ProteinsGenomic InstabilityGenes, FungalAtaxia TelangiectasiaDNA, FungalCyclin-Dependent Kinase Inhibitor p21CyclinsS Phase Cell Cycle CheckpointsChromosome SegregationCell DivisionAmino Acid SequenceSignal TransductionMetaphaseCalcium-Binding ProteinsCyclin B1ApoptosisCell LineRepressor ProteinsDNA Breaks, Double-StrandedModels, BiologicalProtein BindingBase SequenceRadiation ToleranceCell Line, TumorAneuploidyHistonesG1 Phase Cell Cycle CheckpointsGene DeletionCell NucleusMethyl MethanesulfonateUbiquitin-Protein Ligase ComplexesChromosomal Proteins, Non-HistoneAnaphase-Promoting Complex-CyclosomeAnaphaseDNAFibroblastsCarrier ProteinsBRCA1 ProteinMicrotubulesRNA, Small InterferingSequence Homology, Amino AcidFlow CytometryPhenotypeChromosomes, FungalRetinoblastoma ProteinChromatinCDC28 Protein Kinase, S cerevisiaePrometaphaseCell SurvivalCyclin-Dependent Kinase 2Protein Structure, TertiaryCentrosomeAurora KinasesChromosomesTumor Cells, CulturedNeoplasm Proteins