Cell CycleMitosisCell Cycle ProteinsCell Cycle CheckpointsG1 PhaseS PhaseCell DivisionG2 PhaseCyclinsCDC2 Protein KinaseInterphaseMenstrual CycleCyclin BApoptosisProtein-Serine-Threonine KinasesCell ProliferationG2 Phase Cell Cycle CheckpointsSpindle ApparatusCyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent Kinase Inhibitor p27Retinoblastoma ProteinPhosphorylationHeLa CellsNuclear ProteinsDNA ReplicationCell Line, TumorCell LineGenes, cdcG0 PhaseTumor Suppressor Protein p53Molecular Sequence DataCyclin-Dependent Kinase 2Cyclin ACell NucleusG1 Phase Cell Cycle CheckpointsDNA Damagecdc25 PhosphatasesDNA-Binding ProteinsCyclin B1Cyclin ECyclin D1MutationFlow CytometryCentrosomeSignal TransductionTumor Suppressor ProteinsSchizosaccharomycesSaccharomyces cerevisiaeCyclin-Dependent Kinase 4Cells, CulturedCDC2-CDC28 KinasesMicrotubulesModels, BiologicalTime FactorsTranscription FactorsAmino Acid SequenceSaccharomyces cerevisiae ProteinsNocodazoleTumor Cells, CulturedMicrotubule-Associated ProteinsProtein KinasesUbiquitin-Protein Ligase ComplexesFungal ProteinsEstrous CycleDNAE2F Transcription FactorsRNA, MessengerM Phase Cell Cycle CheckpointsTranscription, GeneticAnaphase-Promoting Complex-CyclosomeGene Expression RegulationMetaphaseBase SequenceChromosome SegregationAnaphaseTelophaseBromodeoxyuridineCell DifferentiationSchizosaccharomyces pombe ProteinsProtein BindingCell SurvivalBlotting, WesternHistonesCyclin DChromosomesE2F1 Transcription FactorS Phase Cell Cycle CheckpointsAurora KinasesCitric Acid CycleKinetochoresCyclin-Dependent Kinase Inhibitor ProteinsRNA InterferenceMicroscopy, FluorescenceRNA, Small InterferingTransfectionFibroblastsDown-RegulationAntineoplastic AgentsRecombinant Fusion ProteinsCytokinesis