Cell CycleCell Cycle ProteinsCell Cycle CheckpointsG1 PhaseCell DivisionS PhaseMitosisCell ProliferationCyclinsApoptosisMenstrual CycleG2 PhaseCell DifferentiationSignal TransductionCells, CulturedCyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent Kinase Inhibitor p27Retinoblastoma ProteinStem CellsG2 Phase Cell Cycle CheckpointsMolecular Sequence DataCell LineFlow CytometryModels, BiologicalG0 PhaseCDC2 Protein KinaseCell Line, TumorGene Expression RegulationG1 Phase Cell Cycle CheckpointsTumor Suppressor Protein p53Transcription FactorsMutationCyclin-Dependent Kinase 2Protein-Serine-Threonine KinasesCyclin D1PhosphorylationTime FactorsDNA ReplicationStathminCyclin ETumor Cells, CulturedAmino Acid SequenceGenes, cdcDNA DamageRNA, MessengerCyclin AInterphaseDNA-Binding ProteinsCyclin BTrinitrobenzenesCyclin-Dependent Kinase 4Nuclear ProteinsTransfectionTumor Suppressor ProteinsMeristemCDC2-CDC28 KinasesEstrous Cyclecdc25 PhosphatasesCell NucleusLymphocyte ActivationT-LymphocytesProtein BindingE2F Transcription FactorsHeLa CellsCyclin B1Saccharomyces cerevisiaePhenotypeTranscription, GeneticMice, Inbred C57BLB-LymphocytesCyclin DGene ExpressionDNACitric Acid CycleHematopoietic Stem CellsT-Lymphocytes, RegulatoryBase SequenceCell SurvivalBromodeoxyuridineMice, KnockoutE2F1 Transcription FactorSaccharomyces cerevisiae ProteinsBlotting, WesternS Phase Cell Cycle CheckpointsProtein KinasesHematopoiesisCoculture TechniquesMice, Inbred BALB CDown-RegulationCyclin D3Adult Stem CellsCyclin-Dependent Kinase Inhibitor ProteinsLymphocyte CooperationFibroblastsAntineoplastic AgentsFungal ProteinsSchizosaccharomycesHistonesMice, TransgenicM Phase Cell Cycle Checkpoints