Cell Cycle ProteinsCheckpoint Kinase 2Cell CycleDNA DamageGenes, cdcCell Cycle CheckpointsG2 PhaseProtein-Serine-Threonine KinasesMitosisDNA RepairAtaxia Telangiectasia Mutated ProteinsS PhaseDNA-Binding ProteinsProtein KinasesSaccharomyces cerevisiae ProteinsNuclear ProteinsSchizosaccharomyces pombe ProteinsSpindle ApparatusMad2 ProteinsSchizosaccharomycesRad52 DNA Repair and Recombination ProteinM Phase Cell Cycle CheckpointsG2 Phase Cell Cycle CheckpointsSaccharomyces cerevisiaeDNA ReplicationG1 PhaseKinetochoresTumor Suppressor Protein p53PhosphorylationFungal ProteinsMutationRad51 RecombinaseTumor Suppressor ProteinsDNA Repair EnzymesMolecular Sequence DataHydroxyureaDNA Breaks, Double-StrandedGamma RaysRadiation, IonizingNocodazoleCdc20 ProteinsAmino Acid SequenceCyclin BCDC2 Protein KinaseAtaxia TelangiectasiaGenomic Instabilitycdc25 PhosphatasesCyclin-Dependent Kinase Inhibitor p21Recombination, GeneticHeLa CellsIntracellular Signaling Peptides and ProteinsDNA, FungalCyclinsProtein BindingUltraviolet RaysCell DivisionApoptosisRadiation ToleranceCyclin B1Signal TransductionMetaphaseCell LineChromosomal InstabilityDNACell Line, TumorSequence Homology, Amino AcidDNA HelicasesChromosome SegregationG1 Phase Cell Cycle CheckpointsMethyl MethanesulfonateModels, BiologicalExonucleasesBRCA1 ProteinHistonesMeiosisRepressor ProteinsS Phase Cell Cycle CheckpointsFibroblastsCarrier ProteinsBase SequenceCell NucleusEndonucleasesFlow CytometryChromosomal Proteins, Non-HistoneRetinoblastoma ProteinUbiquitin-Protein Ligase ComplexesCalcium-Binding ProteinsRecombinational DNA RepairRNA, Small InterferingAnaphase-Promoting Complex-CyclosomeCell SurvivalTumor Cells, CulturedCell ProliferationMicrotubulesAnaphasePrometaphaseCyclin-Dependent Kinase 2Genes, FungalEndodeoxyribonucleasesReplication Protein A