Proliferating Cell Nuclear AntigenCell Cycle ProteinsCell CycleReplication Protein CDNA DamageCheckpoint Kinase 2Genes, cdcG2 PhaseCell Cycle CheckpointsMitosisProtein-Serine-Threonine KinasesDNA RepairAtaxia Telangiectasia Mutated ProteinsProtein KinasesS PhaseM Phase Cell Cycle CheckpointsDNA-Binding ProteinsSaccharomyces cerevisiae ProteinsSpindle ApparatusG2 Phase Cell Cycle CheckpointsSchizosaccharomyces pombe ProteinsSchizosaccharomycesNuclear ProteinsDNA ReplicationHydroxyureaSaccharomyces cerevisiaeFungal ProteinsG1 PhaseRad52 DNA Repair and Recombination ProteinMutationGamma RaysTumor Suppressor Protein p53Rad51 RecombinaseTumor Suppressor ProteinsPhosphorylationDNA Repair EnzymesDNA, Fungalcdc25 PhosphatasesDNA Breaks, Double-StrandedRadiation, IonizingUltraviolet RaysChromosomal InstabilityIntracellular Signaling Peptides and ProteinsMad2 ProteinsAtaxia TelangiectasiaCDC2 Protein KinaseCyclin BGenes, FungalS Phase Cell Cycle CheckpointsCyclin-Dependent Kinase Inhibitor p21CyclinsMolecular Sequence DataGenomic InstabilityKinetochoresNocodazoleRecombination, GeneticRadiation ToleranceCell DivisionApoptosisG1 Phase Cell Cycle CheckpointsCyclin B1HeLa CellsSignal TransductionExonucleasesCell LineCell Line, TumorProtein BindingDNAMethyl MethanesulfonateGene DeletionDNA HelicasesModels, BiologicalAneuploidyFibroblastsRepressor ProteinsAmino Acid SequenceBRCA1 ProteinHistonesBase SequenceRecombinational DNA RepairRetinoblastoma ProteinFlow CytometryCDC28 Protein Kinase, S cerevisiaeCdc20 ProteinsCyclin-Dependent Kinase 2EndonucleasesChromosome SegregationCell NucleusEndodeoxyribonucleasesPhenotypeCalcium-Binding ProteinsMeiosisMetaphaseChromosomes, FungalGenes, p53RNA, Small InterferingCell SurvivalTumor Cells, CulturedCell ProliferationCaffeine