Cell CycleCell Cycle ProteinsCell Cycle CheckpointsCell DivisionG1 PhaseMitosisApoptosisS PhaseCell ProliferationCyclinsCell Line, TumorMolecular Sequence DataSignal TransductionCell LineMutationTranscription FactorsRNA, MessengerDNA-Binding ProteinsG2 PhaseCells, CulturedPhosphorylationTransfectionTumor Suppressor Protein p53Protein-Serine-Threonine KinasesGene ExpressionCyclin-Dependent Kinase Inhibitor p27Cyclin-Dependent Kinase Inhibitor p21Nuclear ProteinsGene Expression RegulationBase SequenceRetinoblastoma ProteinMenstrual CycleCell DifferentiationBlotting, WesternAmino Acid SequenceCyclin D1Mice, TransgenicTumor Cells, CulturedGene Expression Regulation, NeoplasticTime FactorsG2 Phase Cell Cycle CheckpointsCell NucleusModels, BiologicalTranscription, GeneticFlow CytometryHeLa CellsImmunohistochemistryCDC2 Protein KinasePromoter Regions, GeneticReverse Transcriptase Polymerase Chain ReactionProtein BindingG0 PhaseDNA ReplicationRNA, Small InterferingCyclin ETumor Suppressor ProteinsUp-RegulationPhenotypeCyclin-Dependent Kinase 2Saccharomyces cerevisiaeCell SurvivalDown-RegulationG1 Phase Cell Cycle CheckpointsDNA DamageProto-Oncogene ProteinsInterphaseGenes, cdcCyclin ACarrier ProteinsCyclin BRNA InterferenceSaccharomyces cerevisiae ProteinsCyclin-Dependent Kinase 4Recombinant Fusion ProteinsDNABromodeoxyuridineFibroblastsGene Expression ProfilingFungal ProteinsCDC2-CDC28 KinasesGene Expression Regulation, Developmentalcdc25 PhosphatasesE2F Transcription FactorsDNA PrimersRepressor ProteinsMembrane ProteinsMicrotubule-Associated ProteinsMice, Inbred C57BLNeoplasm ProteinsE2F1 Transcription FactorSchizosaccharomycesAntineoplastic AgentsProtein KinasesCyclin B1Cloning, MolecularEnzyme InhibitorsSequence Homology, Amino AcidEnzyme ActivationRecombinant ProteinsMicroscopy, Fluorescence