Checkpoint Kinase 2Cell Cycle ProteinsGenes, cdcDNA DamageMitosisCell CycleG2 PhaseM Phase Cell Cycle CheckpointsHydroxyureaS PhaseProtein-Serine-Threonine KinasesSchizosaccharomycesProtein KinasesSchizosaccharomyces pombe ProteinsAtaxia Telangiectasia Mutated ProteinsCell Cycle CheckpointsSpindle ApparatusDNA ReplicationNuclear ProteinsDNA-Binding ProteinsKinetochoresDNA RepairMutationSaccharomyces cerevisiae Proteinscdc25 PhosphatasesG1 PhaseFungal ProteinsCDC2 Protein KinasePhosphorylationMolecular Sequence DataNocodazoleGamma RaysTumor Suppressor Protein p53Chromosome SegregationG2 Phase Cell Cycle CheckpointsChromosomal InstabilityRadiation, IonizingSaccharomyces cerevisiaeExonucleasesCyclin BAnaphaseTumor Suppressor ProteinsMad2 ProteinsS Phase Cell Cycle CheckpointsHeLa CellsAmino Acid SequenceUltraviolet RaysSignal TransductionRepressor ProteinsDNA, FungalCyclinsNucleic Acid Synthesis InhibitorsBase SequenceBRCA1 ProteinMeiosisGenes, Fungal14-3-3 ProteinsProtein BindingRadiation ToleranceDNA Breaks, Double-StrandedCell LineCdc20 ProteinsCell NucleusAtaxia TelangiectasiaChromosomesCarrier ProteinsHistonesChromatinGene Expression Regulation, FungalModels, BiologicalTranscription FactorsTranscription, GeneticGene DeletionSequence Homology, Amino AcidDose-Response Relationship, RadiationIntracellular Signaling Peptides and ProteinsDNACell DivisionGene Expression RegulationCalcium-Binding ProteinsRNA, Small InterferingCell Line, TumorCyclin-Dependent Kinase Inhibitor p21RNA InterferencePhenotypeCaffeineApoptosisCyclin-Dependent KinasesDNA Repair EnzymesProtein Structure, TertiaryMicrotubulesGenomic InstabilityMetaphaseMethyl MethanesulfonateProliferating Cell Nuclear AntigenTime FactorsMutagenesisGene Expression ProfilingAnaphase-Promoting Complex-CyclosomeUbiquitin-Protein Ligase Complexes