Cell CycleCell Cycle ProteinsCheckpoint Kinase 2Disease ProgressionS PhaseMitosisCell Cycle CheckpointsG2 PhaseGenes, cdcG1 PhaseM Phase Cell Cycle CheckpointsProtein-Serine-Threonine KinasesDNA DamageG2 Phase Cell Cycle CheckpointsProtein KinasesSpindle ApparatusCyclinsCell DivisionPhosphorylationDNA ReplicationNuclear ProteinsDNA-Binding ProteinsCDC2 Protein KinaseAtaxia Telangiectasia Mutated ProteinsCell ProliferationCell Line, TumorCyclin-Dependent KinasesRetinoblastoma ProteinCyclin BS Phase Cell Cycle CheckpointsSignal TransductionKinetochoresApoptosiscdc25 PhosphatasesCyclin-Dependent Kinase Inhibitor p21Saccharomyces cerevisiae ProteinsMutationCyclin-Dependent Kinase 2Tumor Suppressor ProteinsCyclin-Dependent Kinase Inhibitor p27Tumor Suppressor Protein p53HydroxyureaSchizosaccharomycesCyclin D1Saccharomyces cerevisiaeSchizosaccharomyces pombe ProteinsNocodazoleCell LineHeLa CellsCyclin ECyclin B1Cyclin AMolecular Sequence DataDNA RepairCDC2-CDC28 KinasesFlow CytometryCdc20 ProteinsE2F Transcription FactorsChromosome SegregationCyclin-Dependent Kinase 4Fungal ProteinsModels, BiologicalUbiquitin-Protein Ligase ComplexesTranscription FactorsRNA, Small InterferingG1 Phase Cell Cycle CheckpointsE2F1 Transcription FactorAnaphase-Promoting Complex-CyclosomeAnaphaseCells, CulturedTime FactorsTumor Cells, CulturedCell NucleusProtein BindingG0 PhaseBlotting, WesternAmino Acid SequenceCell SurvivalMetaphaseGene Expression Regulation, NeoplasticRNA InterferenceIntracellular Signaling Peptides and ProteinsRNA, MessengerHistonesAurora KinasesFibroblastsGene Expression RegulationDNAGenomic InstabilityCarrier ProteinsDown-RegulationTransfectionCyclin DBase SequenceInterphaseRepressor ProteinsTranscription, GeneticGamma RaysAntineoplastic AgentsCentrosome