Cell CycleCell Cycle ProteinsDNA DamageGenes, cdcCheckpoint Kinase 2G2 PhaseCell Cycle CheckpointsDNA RepairMitosisProtein-Serine-Threonine KinasesAtaxia Telangiectasia Mutated ProteinsS PhaseProtein KinasesDNA-Binding ProteinsDNA Breaks, Double-StrandedDNA ReplicationHydroxyureaNuclear ProteinsGamma RaysG2 Phase Cell Cycle CheckpointsSpindle ApparatusM Phase Cell Cycle CheckpointsG1 PhaseTumor Suppressor Protein p53MutationTumor Suppressor ProteinsSaccharomyces cerevisiae ProteinsRadiation, IonizingSchizosaccharomycesAtaxia TelangiectasiaSaccharomyces cerevisiaeMad2 ProteinsSchizosaccharomyces pombe ProteinsFungal ProteinsUltraviolet RaysChromosomal InstabilityPhosphorylationDNARadiation ToleranceMolecular Sequence Datacdc25 PhosphatasesGenomic InstabilityGenes, FungalBase SequenceCyclinsCyclin-Dependent Kinase Inhibitor p21CDC2 Protein KinaseApoptosisCyclin BIntracellular Signaling Peptides and ProteinsCell DivisionCell LineDNA, FungalCell Line, TumorHeLa CellsHistonesG1 Phase Cell Cycle CheckpointsSignal TransductionRecombination, GeneticFibroblastsGene DeletionCyclin B1DNA Repair EnzymesDNA-Activated Protein KinaseS Phase Cell Cycle CheckpointsModels, BiologicalNocodazoleBRCA1 ProteinCell NucleusDose-Response Relationship, RadiationCell SurvivalRetinoblastoma ProteinFlow CytometryProtein BindingAneuploidyMethyl MethanesulfonateRad51 RecombinaseRepressor ProteinsAmino Acid SequencePhenotypeCells, CulturedChromosomes, FungalCell ProliferationTumor Cells, CulturedCyclin-Dependent Kinase 2CDC28 Protein Kinase, S cerevisiaeGenes, p53RNA, Small InterferingDNA HelicasesExonucleasesAphidicolinChromatinChromosome BreakageTime FactorsKinetochoresMutagensComet AssayDNA PrimersNeoplasm ProteinsModels, Genetic