Cell Cycle ProteinsCheckpoint Kinase 2DNA DamageCell CycleGenes, cdcSchizosaccharomycesSchizosaccharomyces pombe ProteinsMitosisProtein-Serine-Threonine KinasesG2 PhaseDNA RepairCell Cycle CheckpointsSaccharomyces cerevisiae ProteinsProtein KinasesAtaxia Telangiectasia Mutated ProteinsSpindle ApparatusHydroxyureaMad2 ProteinsDNA-Binding ProteinsM Phase Cell Cycle CheckpointsFungal ProteinsS PhaseNuclear ProteinsRad52 DNA Repair and Recombination ProteinSaccharomyces cerevisiaeDNA ReplicationGamma RaysMutationDNA, FungalG2 Phase Cell Cycle CheckpointsKinetochoresGenes, FungalG1 PhaseUltraviolet RaysMolecular Sequence DataPhosphorylationTumor Suppressor Protein p53DNA Repair EnzymesDNA Breaks, Double-StrandedTumor Suppressor ProteinsIntracellular Signaling Peptides and ProteinsNocodazoleRad51 RecombinaseChromosomal InstabilityRadiation, IonizingCdc20 ProteinsCDC2 Protein KinaseCyclin BRecombination, GeneticAmino Acid SequenceGenomic Instabilitycdc25 PhosphatasesDNA HelicasesAtaxia TelangiectasiaHeLa CellsCyclin-Dependent Kinase Inhibitor p21S Phase Cell Cycle CheckpointsProtein BindingChromosome SegregationCell DivisionCyclinsExodeoxyribonucleasesMethyl MethanesulfonateMetaphaseBase SequenceRadiation ToleranceCyclin B1Calcium-Binding ProteinsApoptosisSignal TransductionRepressor ProteinsGene DeletionMeiosisCell LineDNACell Line, TumorG1 Phase Cell Cycle CheckpointsSequence Homology, Amino AcidAneuploidyModels, BiologicalDose-Response Relationship, RadiationHistonesChromosomes, FungalExonucleasesBRCA1 ProteinAnaphaseUbiquitin-Protein Ligase ComplexesAnaphase-Promoting Complex-CyclosomeEndonucleasesChromosomal Proteins, Non-HistoneCell NucleusFibroblastsReplication Protein APhenotypeRecombinational DNA RepairSaccharomycetalesRNA, Small InterferingFlow CytometryCarrier ProteinsEndodeoxyribonucleases