Cell CycleCell Cycle ProteinsMitosisS PhaseCell Cycle CheckpointsCell LineMolecular Sequence DataG1 PhaseInterphaseDNA-Binding ProteinsHeLa CellsCell DivisionMutationBase SequenceCDC2 Protein KinaseG2 PhaseReplication Protein ACyclinsProtein-Serine-Threonine KinasesCell NucleusDNA DamageNuclear ProteinsSpindle ApparatusPhosphorylationDNA, ViralSaccharomyces cerevisiaeAmino Acid SequencePlasmidsViral ProteinsDNATranscription, GeneticSaccharomyces cerevisiae ProteinsApoptosisRNA, ViralNocodazoleCells, CulturedCyclin BDNA Replication TimingMeiosisCell Line, TumorCell ProliferationG2 Phase Cell Cycle CheckpointsProtein BindingChromosomesCentrosomeDNA HelicasesRetinoblastoma ProteinTime FactorsRepliconMenstrual CycleTelophaseSchizosaccharomycesHydroxyureaCyclin-Dependent Kinase Inhibitor p27DNA RepairCyclin-Dependent Kinase Inhibitor p21Flow CytometryReplication Protein CTranscription FactorsGenes, cdcModels, BiologicalChromatinCyclin-Dependent Kinase 2Cyclin B1Tumor Suppressor Protein p53DNA ReplicationG0 PhaseProliferating Cell Nuclear AntigenSignal TransductionRNA, MessengerFungal ProteinsSchizosaccharomyces pombe ProteinsHistonesCyclin AProtein KinasesGenome, ViralMicrotubulesTumor Cells, CulturedBromodeoxyuridineRecombination, GeneticTransfectionCyclin ETumor Suppressor ProteinsGene Expression Regulation, ViralDNA, FungalEscherichia coliMetaphaseHIV-1AphidicolinGene Expression RegulationAnaphaseKineticsRNA InterferenceMicroscopy, FluorescenceRecombinant Fusion Proteinscdc25 PhosphatasesFibroblastsBlotting, WesternRNA, Small InterferingG1 Phase Cell Cycle Checkpoints