PrometaphaseCell CycleCell Cycle ProteinsMitosisCheckpoint Kinase 2Spindle ApparatusMetaphaseKinetochoresM Phase Cell Cycle CheckpointsCell Cycle CheckpointsProtein-Serine-Threonine KinasesG2 PhaseGenes, cdcProphaseAnaphaseG2 Phase Cell Cycle CheckpointsNocodazoleDNA DamageS PhaseChromosomesChromosome SegregationMicrotubulesCdc20 ProteinsProtein KinasesG1 PhaseNuclear ProteinsCyclin BCDC2 Protein KinaseHeLa CellsCyclin B1PhosphorylationAurora Kinase BAurora KinasesCell DivisionUbiquitin-Protein Ligase ComplexesAnaphase-Promoting Complex-CyclosomeMad2 ProteinsDNA ReplicationAtaxia Telangiectasia Mutated ProteinsCentromereS Phase Cell Cycle CheckpointsMeiosisInterphaseChromosomal Proteins, Non-HistoneDNA-Binding ProteinsHydroxyureaMicrotubule-Associated ProteinsMutationSecurinTelophaseCell LineSaccharomyces cerevisiae ProteinsCyclinsCell Line, TumorSchizosaccharomycesCentrosomeChromosomes, HumanSchizosaccharomyces pombe Proteinscdc25 PhosphatasesTumor Suppressor Protein p53Saccharomyces cerevisiaeModels, BiologicalTubulinApoptosisCyclin AMolecular Sequence DataMacropodidaeCyclin-Dependent Kinase Inhibitor p21Tumor Suppressor ProteinsSignal TransductionDNA RepairRNA InterferenceCell NucleusMicroscopy, FluorescenceChromatidsSalamandridaeKinesinG1 Phase Cell Cycle CheckpointsCell ProliferationProtein BindingRNA, Small InterferingCalcium-Binding ProteinsAmino Acid SequenceFungal ProteinsRetinoblastoma ProteinTime FactorsHistonesRepressor ProteinsMenstrual CycleDyneinsCell Nucleus DivisionCyclin-Dependent Kinase 2Cells, CulturedCell Nucleus ShapeCyclin-Dependent Kinase Inhibitor p27PhthalazinesOocytesFlow CytometryCytokinesisDNA