Cell CycleApoptosisCell Cycle ProteinsG2 PhaseCell Cycle CheckpointsS PhaseG1 PhaseDNA DamageG2 Phase Cell Cycle CheckpointsCheckpoint Kinase 2MitosisGenes, cdcProtein-Serine-Threonine KinasesAtaxia Telangiectasia Mutated ProteinsG1 Phase Cell Cycle CheckpointsTumor Suppressor Protein p53Cyclin-Dependent Kinase Inhibitor p21Cell DivisionCell Line, TumorCyclinsProtein Kinasescdc25 PhosphatasesPhosphorylationDNA-Binding ProteinsCDC2 Protein KinaseDNA RepairTumor Suppressor ProteinsCell ProliferationM Phase Cell Cycle CheckpointsCyclin B1DNA ReplicationNuclear ProteinsS Phase Cell Cycle CheckpointsSignal TransductionFlow CytometryRetinoblastoma ProteinCell LineGamma RaysCyclin BCell SurvivalHydroxyureaG0 PhaseHeLa CellsCyclin-Dependent Kinase 2Radiation, IonizingCyclin-Dependent Kinase Inhibitor p27Ataxia TelangiectasiaMutationTumor Cells, CulturedSpindle ApparatusCyclin D1Radiation ToleranceCyclin ECells, CulturedBlotting, WesternRNA, Small InterferingSaccharomyces cerevisiae ProteinsFibroblastsCyclin-Dependent KinasesSaccharomyces cerevisiaeAntineoplastic AgentsMolecular Sequence DataGenomic InstabilityModels, BiologicalUltraviolet RaysCell NucleusCyclin-Dependent Kinase 4SchizosaccharomycesNocodazoleDNAAntineoplastic Agents, PhytogenicHistonesSchizosaccharomyces pombe ProteinsInterphaseTime FactorsTranscription FactorsCyclin ACDC2-CDC28 KinasesCaspasesFungal ProteinsGene Expression Regulation, NeoplasticDNA Breaks, Double-StrandedEnzyme ActivationMimosineCaspase 3Genes, p53Protein BindingAmino Acid Sequencebcl-2-Associated X ProteinTransfectionProto-Oncogene Proteins c-bcl-2Chromosomal InstabilityDose-Response Relationship, DrugApoptosis Regulatory ProteinsEnzyme InhibitorsProto-Oncogene ProteinsIntracellular Signaling Peptides and ProteinsRNA, MessengerMenstrual CycleCarrier Proteins