Cell CycleS Phase Cell Cycle CheckpointsG2 Phase Cell Cycle CheckpointsM Phase Cell Cycle CheckpointsG1 Phase Cell Cycle CheckpointsCell Cycle ProteinsMitosisG2 PhaseCell Cycle CheckpointsDNA DamageS PhaseCheckpoint Kinase 2G1 PhaseProtein-Serine-Threonine KinasesGenes, cdcSpindle ApparatusAtaxia Telangiectasia Mutated ProteinsCDC2 Protein Kinasecdc25 PhosphatasesProtein KinasesTumor Suppressor Protein p53PhosphorylationCyclin BDisease ProgressionHeLa CellsCell Line, TumorCyclin B1Cell DivisionCyclin-Dependent Kinase Inhibitor p21Nuclear ProteinsDNA RepairDNA-Binding ProteinsApoptosisTumor Suppressor ProteinsCell ProliferationCentrosomeDNA ReplicationKinetochoresMetaphaseGamma RaysMutationSignal TransductionAtaxia TelangiectasiaNocodazoleHydroxyureaRadiation, IonizingRNA, Small InterferingRetinoblastoma ProteinCdc20 ProteinsFlow CytometryChromosome SegregationChromosomal InstabilityCyclin-Dependent Kinase 2AnaphaseUbiquitin-Protein Ligase ComplexesRadiation ToleranceG0 PhaseAurora KinasesSaccharomyces cerevisiae ProteinsAnaphase-Promoting Complex-CyclosomeCyclin-Dependent KinasesSchizosaccharomycesCell SurvivalCyclin-Dependent Kinase Inhibitor p27Cyclin D1RNA InterferenceSchizosaccharomyces pombe ProteinsSaccharomyces cerevisiaeCyclin EGenomic InstabilityMolecular Sequence DataHistonesUltraviolet RaysFibroblastsInterphaseModels, BiologicalBlotting, WesternCell NucleusTumor Cells, CulturedCyclin AMicrotubulesCells, CulturedProtein BindingAurora Kinase BFungal ProteinsChromosomal Proteins, Non-HistoneCyclin-Dependent Kinase 4Amino Acid SequenceDNA Breaks, Double-StrandedCytokinesisChromosomesAntineoplastic AgentsTime FactorsAntineoplastic Agents, PhytogenicProto-Oncogene ProteinsCell Nucleus DivisionDNAMicrotubule-Associated ProteinsMimosineGene Expression Regulation, Neoplastic