Cell CycleCell DifferentiationCell Cycle ProteinsCell DivisionCells, CulturedSignal TransductionCell LineCell ProliferationCell Cycle CheckpointsTranscription FactorsRNA, MessengerMolecular Sequence DataApoptosisGene Expression RegulationG1 PhaseDNA-Binding ProteinsCell Line, TumorGene ExpressionGene Expression Regulation, DevelopmentalBase SequenceTransfectionMitosisCyclinsS PhaseMutationMice, TransgenicReverse Transcriptase Polymerase Chain ReactionPhosphorylationStem CellsTumor Cells, CulturedNuclear ProteinsBlotting, WesternImmunohistochemistryTranscription, GeneticPhenotypePromoter Regions, GeneticAmino Acid SequenceFlow CytometryProtein-Serine-Threonine KinasesDown-RegulationUp-RegulationTime FactorsCyclin-Dependent Kinase Inhibitor p21Tumor Suppressor Protein p53Retinoblastoma ProteinCyclin-Dependent Kinase Inhibitor p27Mice, Inbred C57BLModels, BiologicalRNA, Small InterferingGene Expression Regulation, NeoplasticG2 PhaseCell SurvivalCell NucleusProtein BindingProto-Oncogene ProteinsGene Expression ProfilingCell LineageEmbryonic Stem CellsCyclin D1Menstrual CycleMice, KnockoutTrans-ActivatorsRepressor ProteinsCarrier ProteinsRNA InterferenceHomeodomain ProteinsSex DifferentiationTumor Suppressor ProteinsDNA PrimersG0 PhaseHeLa CellsTretinoinRecombinant Fusion ProteinsMembrane ProteinsFibroblastsG2 Phase Cell Cycle CheckpointsDNACyclin ENeoplasm ProteinsNeuronsCyclin-Dependent Kinase 2Gene Knockdown TechniquesCDC2 Protein KinaseG1 Phase Cell Cycle CheckpointsOligonucleotide Array Sequence AnalysisRecombinant ProteinsDNA DamageEnzyme ActivationBromodeoxyuridineIn Situ HybridizationDNA ReplicationEmbryo, MammalianCyclin AEpithelial CellsCyclin-Dependent Kinase 4Cell Transformation, NeoplasticEnzyme InhibitorsCloning, MolecularSaccharomyces cerevisiaeProteins