Cell CycleCell Cycle ProteinsMitosisDisease ProgressionSpindle ApparatusG2 PhaseProtein-Serine-Threonine KinasesCheckpoint Kinase 2S PhaseG1 PhaseCell Cycle CheckpointsM Phase Cell Cycle CheckpointsCyclin BDNA DamageCell DivisionCDC2 Protein KinasePhosphorylationHeLa CellsGenes, cdcCyclinsNuclear ProteinsKinetochoresCell ProliferationCell Line, TumorCentrosomeUbiquitin-Protein Ligase ComplexesProtein KinasesMetaphaseAnaphase-Promoting Complex-CyclosomeCdc20 Proteinscdc25 PhosphatasesAnaphaseChromosome SegregationApoptosisAurora KinasesRetinoblastoma ProteinSignal TransductionCyclin-Dependent KinasesMutationCyclin-Dependent Kinase Inhibitor p27Cyclin ADNA-Binding ProteinsCyclin B1G2 Phase Cell Cycle CheckpointsCyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent Kinase 2Cell LineRNA, Small InterferingCyclin D1DNA ReplicationNocodazoleRNA InterferenceMolecular Sequence DataCyclin ESaccharomyces cerevisiae ProteinsTumor Suppressor Protein p53Microtubule-Associated ProteinsTumor Suppressor ProteinsCytokinesisSchizosaccharomycesMicrotubulesSaccharomyces cerevisiaeAurora Kinase BProtein BindingSchizosaccharomyces pombe ProteinsCDC2-CDC28 KinasesCell NucleusCell Nucleus DivisionInterphaseE2F Transcription FactorsCyclin-Dependent Kinase 4Amino Acid SequenceModels, BiologicalProto-Oncogene ProteinsCells, CulturedTime FactorsFlow CytometryS Phase Cell Cycle CheckpointsBlotting, WesternAtaxia Telangiectasia Mutated ProteinsE2F1 Transcription FactorTranscription FactorsG0 PhaseChromosomal Proteins, Non-HistoneHydroxyureaCell SurvivalFungal ProteinsHistonesTumor Cells, CulturedTransfectionMad2 ProteinsG1 Phase Cell Cycle CheckpointsChromosomal InstabilityGene Expression Regulation, NeoplasticAurora Kinase ARNA, MessengerFibroblastsCyclin DGene Expression RegulationPrometaphase