Cell CycleCell Cycle ProteinsCell Cycle CheckpointsCell DivisionG1 PhaseMitosisS PhaseCyclinsMolecular Sequence DataG2 PhaseMenstrual CycleCell ProliferationApoptosisCyclin-Dependent Kinase Inhibitor p27Retinoblastoma ProteinCyclin-Dependent Kinase Inhibitor p21G2 Phase Cell Cycle CheckpointsMutationModels, BiologicalDNA ReplicationCDC2 Protein KinaseProtein-Serine-Threonine KinasesBase SequenceCell Line, TumorAmino Acid SequenceTumor Suppressor Protein p53Cell LineG0 PhaseSignal TransductionTime FactorsPhosphorylationDNA-Binding ProteinsG1 Phase Cell Cycle CheckpointsInterphaseGenes, cdcCyclin-Dependent Kinase 2Transcription FactorsCell DifferentiationCyclin D1Nuclear ProteinsCells, CulturedFlow CytometrySaccharomyces cerevisiaeDNA DamageCyclin ECell NucleusCyclin BCyclin ATumor Suppressor ProteinsDNABromodeoxyuridineCyclin-Dependent Kinase 4RNA, MessengerTranscription, GeneticGene Expression RegulationHeLa CellsCDC2-CDC28 KinasesTumor Cells, CulturedSaccharomyces cerevisiae Proteinscdc25 PhosphatasesPhenotypeEstrous CycleCell SurvivalPhylogenySchizosaccharomycesE2F Transcription FactorsFungal ProteinsProtein BindingCyclin B1Blotting, WesternCitric Acid CycleGene Expression ProfilingStem CellsSpindle ApparatusCyclin DProtein KinasesFibroblastsE2F1 Transcription FactorKineticsBacteriaSequence Homology, Amino AcidCulture MediaCaulobacter crescentusHistonesGene Expression Regulation, DevelopmentalBacterial ProteinsDrosophila ProteinsMicrotubule-Associated ProteinsS Phase Cell Cycle CheckpointsTransfectionCarrier ProteinsPromoter Regions, GeneticAntineoplastic AgentsRNA InterferenceDown-RegulationGene ExpressionRecombinant Fusion ProteinsSequence AlignmentCentrosomeCyclin-Dependent Kinase Inhibitor Proteins