Cell CycleCell Cycle ProteinsCell Cycle CheckpointsG1 PhaseS PhaseMitosisCyclinsCell DivisionMenstrual CycleG2 PhaseApoptosisCyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent Kinase Inhibitor p27Retinoblastoma ProteinCell ProliferationG2 Phase Cell Cycle CheckpointsMolecular Sequence DataG0 PhaseCDC2 Protein KinaseCell Line, TumorTumor Suppressor Protein p53G1 Phase Cell Cycle CheckpointsPhosphorylationCyclin-Dependent Kinase 2Cell LineProtein-Serine-Threonine KinasesCyclin D1DNA-Binding ProteinsDNA ReplicationCyclin EGenes, cdcDNA DamageCyclin AInterphaseFlow CytometryNuclear ProteinsCyclin BProtein BindingCyclin-Dependent Kinase 4Signal TransductionTranscription FactorsMutationTumor Suppressor ProteinsAmino Acid SequenceCells, CulturedCDC2-CDC28 KinasesHeLa CellsTumor Cells, CulturedEstrous Cyclecdc25 PhosphatasesCell NucleusBase SequenceModels, BiologicalDNAE2F Transcription FactorsRNA, MessengerSaccharomyces cerevisiaeTranscription, GeneticTime FactorsGene Expression RegulationCyclin B1Cell DifferentiationCyclin DBlotting, WesternCell SurvivalCitric Acid CycleSaccharomyces cerevisiae ProteinsE2F1 Transcription FactorBromodeoxyuridineKineticsProtein KinasesS Phase Cell Cycle CheckpointsTransfectionFibroblastsDown-RegulationFungal ProteinsHistonesCyclin D3Promoter Regions, GeneticAntineoplastic AgentsCyclin-Dependent Kinase Inhibitor ProteinsSchizosaccharomyces