Cell CycleCell Cycle ProteinsDNA DamageGenes, cdcCheckpoint Kinase 2G2 PhaseCell Cycle CheckpointsMitosisProtein-Serine-Threonine KinasesAtaxia Telangiectasia Mutated ProteinsS PhaseProtein KinasesDNA RepairHydroxyureaG2 Phase Cell Cycle CheckpointsSpindle ApparatusM Phase Cell Cycle CheckpointsG1 PhaseDNA-Binding ProteinsNuclear ProteinsGamma RaysTumor Suppressor Protein p53DNA ReplicationMad2 ProteinsSaccharomyces cerevisiae ProteinsSchizosaccharomycesTumor Suppressor ProteinsSchizosaccharomyces pombe ProteinsFungal ProteinsMutationSaccharomyces cerevisiaeAtaxia TelangiectasiaRadiation, Ionizingcdc25 PhosphatasesUltraviolet RaysChromosomal InstabilityPhosphorylationCyclinsCyclin-Dependent Kinase Inhibitor p21CDC2 Protein KinaseGenes, FungalCyclin BRadiation ToleranceApoptosisIntracellular Signaling Peptides and ProteinsCell DivisionGenomic InstabilityG1 Phase Cell Cycle CheckpointsMolecular Sequence DataDNA, FungalCyclin B1S Phase Cell Cycle CheckpointsCell Line, TumorCell LineSignal TransductionDNA Breaks, Double-StrandedNocodazoleHeLa CellsFibroblastsRetinoblastoma ProteinGene DeletionBase SequenceAneuploidyBRCA1 ProteinModels, BiologicalFlow CytometryRepressor ProteinsHistonesCDC28 Protein Kinase, S cerevisiaeCyclin-Dependent Kinase 2Chromosomes, FungalGenes, p53DNACell NucleusCell ProliferationKinetochoresPhenotypeTumor Cells, CulturedCell SurvivalMethyl MethanesulfonateDNA Repair EnzymesNeoplasm ProteinsCyclin ECells, CulturedMimosineRNA, Small InterferingCDC2-CDC28 KinasesGene Expression Regulation, NeoplasticCyclin-Dependent KinasesCalcium-Binding ProteinsProtein BindingCaffeineAmino Acid SequenceDose-Response Relationship, RadiationCyclin AAphidicolinNucleic Acid Synthesis InhibitorsAllelesTime FactorsPolyploidy