Cell CycleCrystallography, X-RayModels, MolecularCell Cycle ProteinsEnzyme InhibitorsBinding SitesProtein BindingDrug DesignProtein ConformationMolecular StructureMolecular Sequence DataKineticsCell Cycle CheckpointsG1 PhaseMitosisS PhaseCyclinsCell DivisionMenstrual CycleG2 PhaseApoptosisCyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent Kinase Inhibitor p27Cell ProliferationRetinoblastoma ProteinG2 Phase Cell Cycle CheckpointsCell LineCell Line, TumorG0 PhaseCDC2 Protein KinaseDNA-Binding ProteinsPhosphorylationTumor Suppressor Protein p53G1 Phase Cell Cycle CheckpointsCyclin-Dependent Kinase 2DNA ReplicationAmino Acid SequenceProtein-Serine-Threonine KinasesCyclin D1Cyclin EDNA DamageNuclear ProteinsGenes, cdcFlow CytometryMutationCyclin AInterphaseTranscription FactorsBase SequenceSignal TransductionCyclin BCells, CulturedCyclin-Dependent Kinase 4Tumor Suppressor ProteinsDNAHeLa CellsTumor Cells, CulturedCDC2-CDC28 KinasesModels, BiologicalTranscription, GeneticRNA, MessengerSaccharomyces cerevisiaeEstrous Cyclecdc25 PhosphatasesCell NucleusGene Expression RegulationE2F Transcription FactorsTime FactorsCyclin B1Blotting, WesternCell DifferentiationSaccharomyces cerevisiae ProteinsCyclin DCell SurvivalCitric Acid CycleE2F1 Transcription FactorTransfectionBromodeoxyuridinePromoter Regions, GeneticProtein KinasesCarrier ProteinsS Phase Cell Cycle CheckpointsFungal ProteinsFibroblastsHistonesDown-RegulationRecombinant Fusion ProteinsAntineoplastic AgentsCyclin D3SchizosaccharomycesCyclin-Dependent Kinase Inhibitor ProteinsProto-Oncogene ProteinsProtein Structure, TertiaryGene Expression Regulation, NeoplasticRNA, Small InterferingProliferating Cell Nuclear AntigenM Phase Cell Cycle CheckpointsGene Expression ProfilingMicrotubule-Associated ProteinsRecombinant Proteins