Cell CycleCyclin D1Cyclin ACyclin ECyclin BCell Cycle ProteinsCyclin B1Cyclin D3Cyclin D2Cyclin A1CyclinsCyclin DCyclin-Dependent KinasesCyclin A2G1 PhaseCyclin-Dependent Kinase 2Cyclin GS PhaseCyclin G1Cell Cycle CheckpointsCyclin-Dependent Kinase 4CDC2-CDC28 KinasesMitosisCDC2 Protein KinaseCyclin-Dependent Kinase Inhibitor p27Retinoblastoma ProteinCyclin CCell DivisionCyclin-Dependent Kinase Inhibitor p21G2 PhaseCyclin B2PhosphorylationCyclin HCell ProliferationCyclin-Dependent Kinase 6Cyclin G2Cyclin TApoptosisProtein-Serine-Threonine KinasesCell Line, TumorG0 PhaseTumor Suppressor Proteinscdc25 PhosphatasesMenstrual CycleTumor Suppressor Protein p53Cell LineDNA ReplicationE2F Transcription FactorsG2 Phase Cell Cycle CheckpointsNuclear ProteinsDNA-Binding ProteinsGenes, cdcCell NucleusTumor Cells, CulturedMolecular Sequence DataSignal TransductionTranscription FactorsHeLa CellsRNA, MessengerInterphaseG1 Phase Cell Cycle CheckpointsFlow CytometryDNA DamageCells, CulturedMutationAmino Acid SequenceMicrotubule-Associated ProteinsCyclin-Dependent Kinase Inhibitor ProteinsOncogene ProteinsE2F1 Transcription FactorGene Expression RegulationProtein KinasesProtein BindingTranscription, GeneticCyclin-Dependent Kinase Inhibitor p16Proto-Oncogene ProteinsCDC28 Protein Kinase, S cerevisiaeBlotting, WesternBase SequenceModels, BiologicalTime FactorsDown-RegulationProliferating Cell Nuclear AntigenKinetinEnzyme InhibitorsSaccharomyces cerevisiaeTransfectionSaccharomyces cerevisiae ProteinsCyclin IGene Expression Regulation, NeoplasticTranscription Factor DP1PurinesCell DifferentiationDNAUbiquitin-Protein Ligase ComplexesFibroblastsRetinoblastoma-Like Protein p107Promoter Regions, GeneticRetinoblastoma-Binding Protein 1Genes, bcl-1