Cell CycleCell Cycle ProteinsCell Cycle CheckpointsG1 PhaseCyclin-Dependent Kinase 2CyclinsCyclin-Dependent Kinase 4S PhaseMitosisCyclin-Dependent KinasesCDC2 Protein KinaseCDC2-CDC28 KinasesCell DivisionCyclin-Dependent Kinase Inhibitor p27G2 PhaseCyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent Kinase 5Cyclin EProtein-Serine-Threonine KinasesPhosphorylationMenstrual CycleApoptosisCell ProliferationCyclin-Dependent Kinase 6Cyclin D1G2 Phase Cell Cycle CheckpointsRetinoblastoma ProteinCell Line, TumorCyclin BG0 PhaseG1 Phase Cell Cycle CheckpointsTumor Suppressor Protein p53Tumor Suppressor ProteinsDNA ReplicationCell LineCyclin DMolecular Sequence Datacdc25 PhosphatasesDNA-Binding ProteinsDNA DamageNuclear ProteinsGenes, cdcCyclin B1InterphaseSignal TransductionFlow CytometryHeLa CellsCell NucleusMutationCyclin ACells, CulturedE2F Transcription FactorsTranscription FactorsTumor Cells, CulturedCyclin D3Time FactorsModels, BiologicalTranscription, GeneticRNA, MessengerAmino Acid SequenceGene Expression RegulationCyclin-Dependent Kinase Inhibitor p16Saccharomyces cerevisiaeCyclin-Dependent Kinase Inhibitor ProteinsProto-Oncogene ProteinsEstrous CycleProtein BindingE2F1 Transcription FactorBlotting, WesternCell DifferentiationMicrotubule-Associated ProteinsProtein KinasesBase SequenceSaccharomyces cerevisiae ProteinsDNACell SurvivalS Phase Cell Cycle CheckpointsBromodeoxyuridineCyclin D2TransfectionDown-RegulationEnzyme InhibitorsCyclin-Dependent Kinase 9FibroblastsCitric Acid CycleRNA, Small InterferingAntineoplastic AgentsProliferating Cell Nuclear AntigenHistonesSchizosaccharomycesGene Expression Regulation, NeoplasticTranscription Factor DP1Fungal ProteinsPurinesCarrier ProteinsM Phase Cell Cycle CheckpointsRNA InterferenceKinetinPromoter Regions, GeneticEnzyme Activation