Cell Cycle ProteinsCheckpoint Kinase 2DNA DamageCell CycleGenes, cdcProtein-Serine-Threonine KinasesMitosisG2 PhaseCell Cycle CheckpointsDNA RepairProtein KinasesMad2 ProteinsSpindle ApparatusAtaxia Telangiectasia Mutated ProteinsM Phase Cell Cycle CheckpointsS PhaseSaccharomyces cerevisiae ProteinsDNA-Binding ProteinsSchizosaccharomyces pombe ProteinsNuclear ProteinsSchizosaccharomycesHydroxyureaSaccharomyces cerevisiaeDNA ReplicationFungal ProteinsG2 Phase Cell Cycle CheckpointsKinetochoresMutationG1 PhasePhosphorylationTumor Suppressor Protein p53Rad52 DNA Repair and Recombination ProteinGamma RaysTumor Suppressor ProteinsIntracellular Signaling Peptides and ProteinsDNA, FungalNocodazoleDNA Breaks, Double-StrandedChromosomal InstabilityRad51 RecombinaseMolecular Sequence DataUltraviolet RaysCdc20 ProteinsDNA Repair EnzymesRadiation, IonizingCyclin BCDC2 Protein Kinasecdc25 PhosphatasesGenomic InstabilityGenes, FungalHeLa CellsAtaxia TelangiectasiaCyclin-Dependent Kinase Inhibitor p21ApoptosisSignal TransductionCell DivisionProtein BindingCyclinsS Phase Cell Cycle CheckpointsCell Line, TumorRecombination, GeneticRepressor ProteinsChromosome SegregationCalcium-Binding ProteinsCell LineCyclin B1MetaphaseRadiation ToleranceAmino Acid SequenceMethyl MethanesulfonateAneuploidyG1 Phase Cell Cycle CheckpointsModels, BiologicalBase SequenceGene DeletionDNADNA HelicasesHistonesRNA, Small InterferingBRCA1 ProteinFibroblastsUbiquitin-Protein Ligase ComplexesExonucleasesAnaphase-Promoting Complex-CyclosomeAnaphaseMeiosisCarrier ProteinsCell NucleusPhenotypeChromosomal Proteins, Non-HistoneFlow CytometryCell ProliferationTumor Cells, CulturedCell SurvivalMicrotubulesRetinoblastoma ProteinChromosomes, FungalNeoplasm ProteinsEndonucleasesCells, Cultured