Cell CycleDNA DamageS Phase Cell Cycle CheckpointsG2 Phase Cell Cycle CheckpointsG1 Phase Cell Cycle CheckpointsM Phase Cell Cycle CheckpointsCell Cycle ProteinsG2 PhaseCell Cycle CheckpointsCheckpoint Kinase 2S PhaseG1 PhaseAtaxia Telangiectasia Mutated ProteinsProtein-Serine-Threonine KinasesGenes, cdcMitosisDNA RepairTumor Suppressor Protein p53Protein KinasesDNA-Binding Proteinscdc25 PhosphatasesPhosphorylationApoptosisCyclin-Dependent Kinase Inhibitor p21Tumor Suppressor ProteinsCell Line, TumorCDC2 Protein KinaseGamma RaysCell DivisionCyclinsNuclear ProteinsDNA ReplicationUltraviolet RaysCyclin B1Signal TransductionHydroxyureaAtaxia TelangiectasiaCell ProliferationCell LineRadiation, IonizingRadiation ToleranceMutationHeLa CellsCyclin BGenomic InstabilityFlow CytometrySpindle ApparatusRetinoblastoma ProteinCell SurvivalDNA Breaks, Double-StrandedSaccharomyces cerevisiae ProteinsCyclin-Dependent Kinase 2G0 PhaseFibroblastsHistonesSaccharomyces cerevisiaeComet AssayCyclin-Dependent KinasesDNACells, CulturedTumor Cells, CulturedCyclin D1Cyclin-Dependent Kinase Inhibitor p27SchizosaccharomycesModels, BiologicalRNA, Small InterferingCyclin EMolecular Sequence DataNocodazoleBlotting, WesternCell NucleusSchizosaccharomyces pombe ProteinsBRCA1 ProteinMethyl MethanesulfonateChromosomal InstabilityAntineoplastic AgentsDose-Response Relationship, RadiationFungal ProteinsDNA Repair EnzymesAntineoplastic Agents, PhytogenicProtein BindingCyclin-Dependent Kinase 4Genes, p53Intracellular Signaling Peptides and ProteinsTime FactorsTranscription FactorsAmino Acid SequenceMutagensMimosineGene Expression Regulation, NeoplasticInterphaseChromatinDose-Response Relationship, DrugAphidicolinCDC2-CDC28 KinasesAllyl CompoundsBase SequenceNucleic Acid Synthesis InhibitorsRNA InterferenceCyclin A