Cell CycleCell Cycle ProteinsApoptosisG1 PhaseCyclinsCell Cycle CheckpointsS PhaseMitosisCell DivisionG2 PhaseTumor Suppressor Protein p53Cell ProliferationCyclin-Dependent Kinase Inhibitor p27Retinoblastoma ProteinCell Line, TumorCyclin-Dependent Kinase Inhibitor p21Signal TransductionPhosphorylationCaspasesCell LineMolecular Sequence DataCDC2 Protein KinaseProtein-Serine-Threonine KinasesCaspase 3Cyclin-Dependent KinasesDNA-Binding ProteinsGenes, cdcApoptosis Regulatory ProteinsCyclin-Dependent Kinase 2Cyclin ACyclin D1Proto-Oncogene Proteins c-bcl-2Tumor Cells, CulturedRNA, MessengerCell SurvivalTranscription FactorsInhibitor of Apoptosis ProteinsCells, CulturedFlow CytometryGene Expression RegulationHeLa CellsNuclear ProteinsDNA DamageTumor Suppressor ProteinsBase SequenceCyclin EE2F Transcription FactorsTranscription, GeneticGene Expression ProfilingBlotting, WesternG1 Phase Cell Cycle CheckpointsTransfectionMutationCell NucleusG0 Phasecdc25 PhosphatasesCyclin BAmino Acid SequenceCyclin-Dependent Kinase Inhibitor ProteinsInterphaseDown-RegulationCyclin-Dependent Kinase 4CDC2-CDC28 KinasesProto-Oncogene ProteinsE2F1 Transcription FactorModels, BiologicalDNA ReplicationGene Expression Regulation, NeoplasticTime FactorsCaulobacter crescentusCell DifferentiationEnzyme ActivationDNA FragmentationProtein BindingRNA, Small InterferingAntineoplastic AgentsReverse Transcriptase Polymerase Chain Reactionbcl-2-Associated X ProteinEnzyme InhibitorsIn Situ Nick-End LabelingCarrier ProteinsPromoter Regions, GeneticOligonucleotide Array Sequence AnalysisSaccharomyces cerevisiaeFibroblastsRetinoblastoma-Binding Protein 1Transcription Factor DP1HistonesCyclin B1Gene ExpressionProtein KinasesMicrotubule-Associated ProteinsSaccharomyces cerevisiae ProteinsRNA InterferenceUp-RegulationX-Linked Inhibitor of Apoptosis ProteinProliferating Cell Nuclear AntigenCyclin DGamma RaysDNA