Cell CycleInterphaseCell Cycle ProteinsMitosisCell Cycle CheckpointsCell DivisionG1 PhaseS PhaseCell NucleusCyclinsMicrotubulesSpindle ApparatusG2 PhaseCDC2 Protein KinaseIn Situ Hybridization, FluorescenceMetaphaseChromosomesHeLa CellsCentrosomeNuclear ProteinsMenstrual CycleMolecular Sequence DataCell ProliferationCell LineApoptosisPhosphorylationProtein-Serine-Threonine KinasesCyclin BCyclin-Dependent Kinase Inhibitor p27DNA ReplicationRetinoblastoma ProteinTelophaseCyclin-Dependent Kinase Inhibitor p21ChromatinMicrotubule-Associated ProteinsG2 Phase Cell Cycle CheckpointsMutationDNA-Binding ProteinsCell Line, TumorTubulinSchizosaccharomycesModels, BiologicalCells, Culturedcdc25 PhosphatasesTumor Suppressor Protein p53Amino Acid SequenceTime FactorsCyclin-Dependent Kinase 2DNAGenes, cdcMicroscopy, FluorescenceG0 PhaseNocodazoleCyclin AG1 Phase Cell Cycle CheckpointsDNA DamageFlow CytometryTranscription FactorsSignal TransductionCell DifferentiationBase SequenceCyclin D1HistonesCell NucleolusCyclin B1Cyclin EProphaseBromodeoxyuridineCentriolesSchizosaccharomyces pombe ProteinsTumor Suppressor ProteinsTumor Cells, CulturedProtein BindingTranscription, GeneticCDC2-CDC28 KinasesSaccharomyces cerevisiaeFluorescent Antibody TechniqueCentromereNuclear EnvelopeFibroblastsRecombinant Fusion ProteinsCyclin-Dependent Kinase 4Chromosomal Proteins, Non-HistoneGene Expression RegulationRNA, MessengerCytoplasmChromosomes, HumanCell SurvivalProtein KinasesAnaphaseChromosome PositioningDrosophila ProteinsBlotting, WesternSaccharomyces cerevisiae ProteinsChromosome AberrationsEstrous CycleCytokinesisGreen Fluorescent ProteinsFungal ProteinsE2F Transcription Factors