Cerebellar NucleiCell Cycle ProteinsCell CycleCell NucleusCyclin-Dependent Kinase Inhibitor p27Cyclin DCyclinsCyclin D1Cyclin-Dependent KinasesCyclin-Dependent Kinase 4Cyclin-Dependent Kinase Inhibitor p21Cyclin D2G1 PhaseRetinoblastoma ProteinCyclin B1Proliferating Cell Nuclear AntigenCell DivisionCyclin BCell ProliferationCyclin EMitosisS PhaseE2F1 Transcription FactorCyclin-Dependent Kinase 2Cyclin D3Cyclin ACDC2 Protein KinaseTumor Suppressor ProteinsCDC2-CDC28 KinasesApoptosisCell Cycle CheckpointsE2F Transcription FactorsCells, CulturedKi-67 AntigenTumor Suppressor Protein p53Microtubule-Associated ProteinsPhosphorylationCell Line, TumorProtein-Serine-Threonine KinasesCyclin-Dependent Kinase Inhibitor p16Gene Expression RegulationDNA-Binding ProteinsImmunohistochemistryFlow CytometrySignal TransductionBlotting, WesternTranscription FactorsCell DifferentiationDNAProto-Oncogene ProteinsTime FactorsCell SurvivalDown-RegulationEnzyme InhibitorsRNA, MessengerMutationMenstrual CycleG2 PhaseNeuronscis-trans-IsomerasesRats, Sprague-DawleyMolecular Sequence DataCell LineG2 Phase Cell Cycle CheckpointsNuclear ProteinsMice, KnockoutG0 PhaseG1 Phase Cell Cycle CheckpointsTumor Cells, CulturedAmino Acid SequenceDNA ReplicationProtein BindingGenes, cdcDNA DamageCarrier ProteinsInterphaseTransfectionGene Expression