Cell CycleCell Cycle ProteinsCell Cycle CheckpointsG1 PhaseSpheroids, CellularCell DivisionMitosisS PhaseCyclinsVolvoxMolecular Sequence DataApoptosisMenstrual CycleModels, BiologicalCell ProliferationG2 PhaseSignal TransductionCyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent Kinase Inhibitor p27DictyosteliumMutationRetinoblastoma ProteinCell Line, TumorG2 Phase Cell Cycle CheckpointsCell LineAmino Acid SequenceProtein-Serine-Threonine KinasesPhosphorylationMyxococcus xanthusG0 PhaseCDC2 Protein KinaseDNA-Binding ProteinsDNA ReplicationTranscription FactorsG1 Phase Cell Cycle CheckpointsTumor Suppressor Protein p53Tumor Cells, CulturedCyclin-Dependent Kinase 2DNA DamageFlow CytometryCell DifferentiationNuclear ProteinsTime FactorsCyclin D1Cells, CulturedBase SequenceCyclin EGenes, cdcSaccharomyces cerevisiaeCell NucleusCell SurvivalCyclin AInterphaseRNA, MessengerGene Expression RegulationMorphogenesisCyclin BTumor Suppressor ProteinsTranscription, GeneticCyclin-Dependent Kinase 4PhenotypeHeLa CellsCDC2-CDC28 KinasesCaenorhabditis elegansGene Expression Regulation, DevelopmentalSaccharomyces cerevisiae ProteinsFungal ProteinsDNAEstrous Cyclecdc25 PhosphatasesCell AggregationE2F Transcription FactorsBlotting, WesternProtein BindingProtein KinasesSequence Homology, Amino AcidCyclin B1Antineoplastic AgentsGene Expression ProfilingDrosophila ProteinsFibroblastsCyclin DMicroscopy, FluorescenceCitric Acid CycleHistonesRNA InterferenceBromodeoxyuridineE2F1 Transcription FactorSchizosaccharomycesCell CommunicationDown-RegulationPromoter Regions, GeneticPhylogenyTransfectionCarrier ProteinsS Phase Cell Cycle CheckpointsGene ExpressionDrosophila melanogasterBiological EvolutionGene Expression Regulation, Fungal