Checkpoint Kinase 2S PhaseS Phase Cell Cycle CheckpointsCell Cycle ProteinsAtaxia Telangiectasia Mutated ProteinsGenes, cdcProtein-Serine-Threonine KinasesDNA DamageDNA ReplicationG2 PhaseHydroxyureaCell CycleProtein KinasesMitosisNaphthalimidesM Phase Cell Cycle CheckpointsRadiation, Ionizingcdc25 PhosphatasesDNA-Binding ProteinsSaccharomyces cerevisiae ProteinsNuclear ProteinsTumor Suppressor ProteinsChromosomal Proteins, Non-HistoneDNA RepairSaccharomyces cerevisiaeAphidicolinAtaxia TelangiectasiaPhosphorylationCell Cycle CheckpointsG1 PhaseSpindle ApparatusReplication OriginMutationKinetochoresDNA, FungalG2 Phase Cell Cycle CheckpointsHeLa CellsModels, BiologicalSchizosaccharomyces pombe ProteinsNocodazoleSchizosaccharomycesCell LineCdc20 ProteinsCell Line, TumorChromosome SegregationAnaphaseCDC2 Protein KinaseCyclin BFungal ProteinsMetaphaseGenomic InstabilityTumor Suppressor Protein p53Anaphase-Promoting Complex-CyclosomeUbiquitin-Protein Ligase ComplexesAurora KinasesDNA Breaks, Double-StrandedChromosomal InstabilityMethyl MethanesulfonateGamma RaysIntracellular Signaling Peptides and ProteinsUltraviolet RaysSignal TransductionCyclin B1Calcium-Binding ProteinsAurora Kinase BMeiosisMicrotubulesRepressor ProteinsSecurinHistonesChromosomesG1 Phase Cell Cycle CheckpointsReplication Protein ARNA, Small InterferingAneuploidyProtein BindingMolecular Sequence DataCell DivisionSaccharomycetalesApoptosisCentrosomeNucleic Acid Synthesis InhibitorsCyclin-Dependent Kinase Inhibitor p21PrometaphaseXenopus ProteinsRadiation ToleranceChromatinChromatidsExodeoxyribonucleasesPolyploidyRNA InterferenceGene Expression Regulation, FungalGenes, FungalAmino Acid SequenceCarrier ProteinsCaffeineCyclinsCell NucleusGene DeletionDNA Helicases