Cell CycleCell Cycle ProteinsCheckpoint Kinase 2S PhaseG1 PhaseMitosisCell Cycle CheckpointsDisease ProgressionG2 PhaseProtein-Serine-Threonine KinasesCyclinsCyclin-Dependent KinasesGenes, cdcDNA DamageCyclin-Dependent Kinase 2Cell DivisionM Phase Cell Cycle CheckpointsPhosphorylationCDC2 Protein KinaseCyclin-Dependent Kinase Inhibitor p27Cell ProliferationCyclin-Dependent Kinase Inhibitor p21Retinoblastoma ProteinCyclin-Dependent Kinase 4G2 Phase Cell Cycle CheckpointsCyclin D1Protein KinasesCyclin ECell Line, TumorCDC2-CDC28 KinasesNuclear ProteinsApoptosisDNA ReplicationCyclin BDNA-Binding ProteinsSpindle ApparatusSignal Transductioncdc25 PhosphatasesTumor Suppressor ProteinsTumor Suppressor Protein p53MutationCell LineCyclin ASaccharomyces cerevisiae ProteinsCyclin B1E2F Transcription FactorsHeLa CellsMolecular Sequence DataS Phase Cell Cycle CheckpointsE2F1 Transcription FactorAtaxia Telangiectasia Mutated ProteinsSaccharomyces cerevisiaeG0 PhaseFlow CytometryTranscription FactorsHydroxyureaSchizosaccharomycesCyclin DCells, CulturedG1 Phase Cell Cycle CheckpointsSchizosaccharomyces pombe ProteinsKinetochoresNocodazoleTumor Cells, CulturedCell NucleusRNA, Small InterferingModels, BiologicalProtein BindingBlotting, WesternAmino Acid SequenceTime FactorsUbiquitin-Protein Ligase ComplexesCyclin-Dependent Kinase 6Fungal ProteinsGene Expression RegulationCell SurvivalDNA RepairRNA, MessengerAnaphase-Promoting Complex-CyclosomeDown-RegulationTransfectionProto-Oncogene ProteinsInterphaseTranscription Factor DP1Gene Expression Regulation, NeoplasticTranscription, GeneticFibroblastsDNABase SequenceRNA InterferenceCarrier ProteinsMicrotubule-Associated ProteinsHistonesChromosome SegregationEnzyme InhibitorsCdc20 ProteinsAnaphaseRetinoblastoma-Binding Protein 1BromodeoxyuridineCentrosome