Cell CycleCell Cycle ProteinsCell DivisionCell Cycle CheckpointsG1 PhaseCell ProliferationS PhaseMitosisCyclinsApoptosisCell Line, TumorG2 PhaseCyclin-Dependent Kinase Inhibitor p21Menstrual CycleCyclin-Dependent Kinase Inhibitor p27Retinoblastoma ProteinSignal TransductionTumor Cells, CulturedCell LinePhosphorylationG2 Phase Cell Cycle CheckpointsMolecular Sequence DataProtein-Serine-Threonine KinasesTumor Suppressor Protein p53G0 PhaseCell Growth ProcessesCyclin D1Cells, CulturedDNA-Binding ProteinsG1 Phase Cell Cycle CheckpointsCDC2 Protein KinaseRNA, MessengerCyclin-Dependent Kinase 2Flow CytometryDNA ReplicationTumor Suppressor ProteinsTranscription FactorsCyclin EMutationNuclear ProteinsCell SurvivalDNA DamageCyclin ABlotting, WesternGenes, cdcCyclin-Dependent Kinase 4Cyclin BInterphaseCell NucleusTranscription, GeneticTime FactorsBase SequenceTransfectionAmino Acid SequenceGene Expression Regulation, NeoplasticGene Expression RegulationSaccharomyces cerevisiaeHeLa CellsCell DifferentiationModels, BiologicalAntineoplastic AgentsCDC2-CDC28 KinasesDown-RegulationDNARNA, Small InterferingE2F Transcription FactorsSaccharomyces cerevisiae Proteinscdc25 PhosphatasesFibroblastsProtein BindingCyclin B1Protein KinasesEstrous CycleCyclin DE2F1 Transcription FactorProto-Oncogene ProteinsBromodeoxyuridineRNA InterferenceEnzyme InhibitorsGene ExpressionReverse Transcriptase Polymerase Chain ReactionGrowth InhibitorsDose-Response Relationship, DrugPromoter Regions, GeneticFungal ProteinsGene Expression ProfilingCarrier ProteinsCitric Acid CycleMice, NudeCell Transformation, NeoplasticKineticsProto-Oncogene Proteins c-mycSchizosaccharomycesEnzyme ActivationS Phase Cell Cycle Checkpoints3T3 CellsMicrotubule-Associated ProteinsProliferating Cell Nuclear AntigenHistonesRecombinant Fusion Proteins