M Phase Cell Cycle CheckpointsG2 Phase Cell Cycle CheckpointsCell CycleG2 PhaseS Phase Cell Cycle CheckpointsG1 Phase Cell Cycle CheckpointsEmbryonic Stem CellsAllyl CompoundsCell Cycle ProteinsCell Cycle CheckpointsIsothiocyanatesMitosisDNA DamageS PhaseCheckpoint Kinase 2Cell Line, TumorG1 PhaseApoptosisCell ProliferationGenes, cdcAtaxia Telangiectasia Mutated ProteinsProtein-Serine-Threonine KinasesCell DivisionStem CellsTumor Suppressor Protein p53Phosphorylationcdc25 PhosphatasesProtein KinasesFlow CytometryCDC2 Protein KinaseDNA-Binding ProteinsCyclin-Dependent Kinase Inhibitor p21DNA RepairCyclinsCyclin B1Cell LineTumor Suppressor ProteinsNuclear ProteinsDNA ReplicationCyclin BGamma RaysCell DifferentiationSignal TransductionRadiation, IonizingHydroxyureaAtaxia TelangiectasiaSpindle ApparatusCells, CulturedRetinoblastoma ProteinHeLa CellsPluripotent Stem CellsMutationRadiation ToleranceG0 PhaseCyclin-Dependent Kinase 2Cell SurvivalCyclin-Dependent KinasesEmbryo, MammalianFibroblastsCyclin-Dependent Kinase Inhibitor p27Genomic InstabilityNocodazoleCyclin ECyclin D1Ultraviolet RaysSaccharomyces cerevisiae ProteinsHistonesTumor Cells, CulturedModels, BiologicalRNA, Small InterferingMolecular Sequence DataSaccharomyces cerevisiaeBlotting, WesternTranscription FactorsSchizosaccharomycesCell NucleusDNA Breaks, Double-StrandedSchizosaccharomyces pombe ProteinsDNAAntineoplastic Agents, PhytogenicCyclin-Dependent Kinase 4Antineoplastic AgentsStem Cell TransplantationChromosomal InstabilityMimosineInterphaseFungal ProteinsOctamer Transcription Factor-3Time FactorsBase SequenceBRCA1 ProteinCyclin AProtein BindingGene Expression RegulationAmino Acid SequenceAphidicolinCDC2-CDC28 KinasesChromatinGenes, p53Kinetochores