Cell CycleCell Cycle ProteinsCheckpoint Kinase 2Cell Cycle CheckpointsMitosisGenes, cdcM Phase Cell Cycle CheckpointsDNA DamageG2 PhaseS PhaseProtein-Serine-Threonine KinasesG2 Phase Cell Cycle CheckpointsG1 PhaseSpindle ApparatusProtein KinasesDNA ReplicationAtaxia Telangiectasia Mutated ProteinsNuclear ProteinsCell DivisionS Phase Cell Cycle CheckpointsPhosphorylationDNA-Binding ProteinsMutationTumor Suppressor Protein p53KinetochoresHydroxyureaCell Line, TumorCyclinsApoptosisCDC2 Protein KinaseSaccharomyces cerevisiae ProteinsTumor Suppressor ProteinsSchizosaccharomycesDNA RepairCyclin BCyclin-Dependent Kinase Inhibitor p21Schizosaccharomyces pombe ProteinsNocodazoleCell ProliferationSignal Transductioncdc25 PhosphatasesSaccharomyces cerevisiaeHeLa CellsEarly Detection of CancerMolecular Sequence DataG1 Phase Cell Cycle CheckpointsCell LineModels, BiologicalRetinoblastoma ProteinFlow CytometryRNA, Small InterferingCdc20 ProteinsBreast NeoplasmsGene Expression Regulation, NeoplasticNeoplasmsCell SurvivalAntineoplastic AgentsCyclin B1Chromosome SegregationFungal ProteinsBlotting, WesternCyclin-Dependent Kinase Inhibitor p27RNA, MessengerProstatic NeoplasmsMenstrual CycleCyclin-Dependent Kinase 2Tumor Cells, CulturedCell NucleusColonic NeoplasmsLung NeoplasmsNeoplasm ProteinsOvarian NeoplasmsTranscription FactorsRNA InterferenceUbiquitin-Protein Ligase ComplexesAnaphaseProtein BindingCyclin D1Anaphase-Promoting Complex-CyclosomeGenomic InstabilityIntracellular Signaling Peptides and ProteinsAmino Acid SequenceGamma RaysRadiation, IonizingTime FactorsHistonesDNACyclin EGene Expression ProfilingDown-RegulationCyclin ABase SequenceMice, NudeReverse Transcriptase Polymerase Chain ReactionAurora KinasesG0 PhaseMetaphaseTransfectionCells, CulturedUltraviolet Rays