Cell CycleCell Cycle ProteinsGenes, cdcDNA DamageCheckpoint Kinase 2G2 PhaseCell Cycle CheckpointsMitosisProtein-Serine-Threonine KinasesAtaxia Telangiectasia Mutated ProteinsCell AgingS PhaseMutationProtein KinasesDNA RepairG2 Phase Cell Cycle CheckpointsHydroxyureaTumor Suppressor Protein p53Spindle ApparatusDNA-Binding ProteinsNuclear ProteinsM Phase Cell Cycle CheckpointsG1 PhasePoint MutationDNA ReplicationGamma RaysTumor Suppressor ProteinsSaccharomyces cerevisiae ProteinsMad2 ProteinsSchizosaccharomycesFungal ProteinsSaccharomyces cerevisiaeMutation, MissenseCyclin-Dependent Kinase Inhibitor p21Schizosaccharomyces pombe ProteinsAtaxia TelangiectasiaRadiation, IonizingPhosphorylationChromosomal Instabilitycdc25 PhosphatasesUltraviolet RaysCyclinsMolecular Sequence DataGenes, FungalCDC2 Protein KinaseCell DivisionApoptosisCyclin BBase SequenceFibroblastsIntracellular Signaling Peptides and ProteinsCell LineRadiation ToleranceGenomic InstabilitySignal TransductionCell Line, TumorG1 Phase Cell Cycle CheckpointsGene DeletionRetinoblastoma ProteinDNA, FungalPhenotypeHeLa CellsCyclin B1Genes, p53S Phase Cell Cycle CheckpointsRepressor ProteinsModels, BiologicalNocodazoleDNA Breaks, Double-StrandedAllelesAmino Acid SequenceCell ProliferationDNABRCA1 ProteinCells, CulturedAneuploidyHistonesTelomereFlow CytometryFrameshift MutationCyclin-Dependent Kinase 2Cyclin-Dependent Kinase Inhibitor p16Cell NucleusProtein BindingNeoplasm ProteinsTumor Cells, CulturedChromosomes, FungalDNA PrimersCDC28 Protein Kinase, S cerevisiaeRNA, Small InterferingGene Expression Regulation, NeoplasticCell SurvivalKinetochoresCyclin ETranscription FactorsDNA Repair EnzymesCarrier ProteinsCyclin-Dependent KinasesTransfectionMethyl Methanesulfonate