Protein-Serine-Threonine KinasesCheckpoint Kinase 2Cell CycleM Phase Cell Cycle CheckpointsG2 Phase Cell Cycle CheckpointsS Phase Cell Cycle CheckpointsCell Cycle ProteinsG1 Phase Cell Cycle CheckpointsMitosisG2 PhaseDNA DamageCell Cycle CheckpointsGenes, cdcProtein KinasesS PhaseAtaxia Telangiectasia Mutated ProteinsG1 PhaseMad2 ProteinsSpindle ApparatusPhosphorylationCyclic GMP-Dependent Protein KinasesKinetochorescdc25 PhosphatasesCDC2 Protein KinaseNocodazoleTumor Suppressor Protein p53DNA-Binding ProteinsNuclear ProteinsDNA RepairHydroxyureaDNA ReplicationCdc20 ProteinsCell Line, TumorTumor Suppressor ProteinsApoptosisHeLa CellsSaccharomyces cerevisiae ProteinsCyclin-Dependent Kinase Inhibitor p21Cell DivisionCyclin BMutationChromosomal InstabilitySignal TransductionCyclin B1SchizosaccharomycesSchizosaccharomyces pombe ProteinsRadiation, IonizingCyclinsSaccharomyces cerevisiaeGamma RaysChromosome SegregationCell LineGenomic InstabilityCyclin-Dependent KinasesCell ProliferationProtein Kinase InhibitorsFlow CytometryAtaxia TelangiectasiaRNA, Small InterferingUltraviolet RaysRadiation ToleranceFungal ProteinsCell SurvivalModels, BiologicalAnaphaseCyclin-Dependent Kinase 2Molecular Sequence DataHistonesAntimitotic AgentsUbiquitin-Protein Ligase ComplexesAurora KinasesAnaphase-Promoting Complex-CyclosomeIntracellular Signaling Peptides and ProteinsCalcium-Binding ProteinsProtein BindingDNA Breaks, Double-StrandedFibroblastsChromosomal Proteins, Non-HistoneRetinoblastoma ProteinTumor Cells, CulturedRepressor ProteinsCells, CulturedBlotting, WesternMetaphasePhosphatidylinositol 3-KinasesAneuploidyCell NucleusAmino Acid SequencePolyploidyG0 PhaseEnzyme ActivationCyclin-Dependent Kinase Inhibitor p27Antineoplastic AgentsMethyl MethanesulfonateProtein-Tyrosine KinasesAurora Kinase BRNA InterferenceMicrotubulesCyclin EEnzyme Inhibitors