Cell CycleCell Cycle ProteinsDNA DamageGenes, cdcMitosisCheckpoint Kinase 2G2 PhaseCell Cycle CheckpointsProtein-Serine-Threonine KinasesAtaxia Telangiectasia Mutated ProteinsS PhaseProtein KinasesSpindle ApparatusDNA RepairG2 Phase Cell Cycle CheckpointsHydroxyureaM Phase Cell Cycle CheckpointsNuclear ProteinsDNA-Binding ProteinsG1 PhaseDNA ReplicationGamma RaysTumor Suppressor Protein p53Saccharomyces cerevisiae ProteinsSchizosaccharomycesMad2 ProteinsMutationTumor Suppressor ProteinsSchizosaccharomyces pombe ProteinsFungal ProteinsCDC2 Protein KinaseSaccharomyces cerevisiaePhosphorylationUltraviolet Rayscdc25 PhosphatasesChromosomal InstabilityAtaxia TelangiectasiaRadiation, IonizingCyclin BCyclinsApoptosisGenes, FungalCell DivisionCyclin-Dependent Kinase Inhibitor p21NocodazoleIntracellular Signaling Peptides and ProteinsHeLa CellsRadiation ToleranceCell LineGenomic InstabilityMolecular Sequence DataCyclin B1Cell Line, TumorG1 Phase Cell Cycle CheckpointsSignal TransductionDNA, FungalCell SurvivalDNA Breaks, Double-StrandedInterphaseFibroblastsS Phase Cell Cycle CheckpointsModels, BiologicalBase SequenceGene DeletionRetinoblastoma ProteinCell NucleusAneuploidyFlow CytometryCells, CulturedHistonesKinetochoresCentrosomeRepressor ProteinsDNACDC28 Protein Kinase, S cerevisiaeBRCA1 ProteinCyclin-Dependent Kinase 2Cell ProliferationMetaphaseChromosomes, FungalTumor Cells, CulturedPhenotypeTime FactorsCell DeathGenes, p53Amino Acid SequenceNeoplasm ProteinsRNA, Small InterferingProtein BindingCyclin EPolyploidyMethyl MethanesulfonateCyclin-Dependent KinasesDose-Response Relationship, RadiationChromosomesDNA Repair EnzymesMicrotubulesCalcium-Binding ProteinsCyclin AMimosine