Checkpoint Kinase 2Cell CycleCell Cycle ProteinsGenes, cdcDNA DamageProtein-Serine-Threonine KinasesProtein KinasesG2 PhaseCell Cycle CheckpointsMitosisAtaxia Telangiectasia Mutated ProteinsS PhaseM Phase Cell Cycle CheckpointsHydroxyureaSpindle ApparatusG2 Phase Cell Cycle CheckpointsDNA RepairDNA ReplicationDNA-Binding ProteinsNuclear ProteinsPhosphorylationSaccharomyces cerevisiae ProteinsSchizosaccharomycesG1 Phasecdc25 PhosphatasesSchizosaccharomyces pombe ProteinsMutationTumor Suppressor ProteinsTumor Suppressor Protein p53CDC2 Protein KinaseSaccharomyces cerevisiaeGamma RaysDisease ProgressionFungal ProteinsRadiation, IonizingIntracellular Signaling Peptides and ProteinsUltraviolet RaysCyclin BS Phase Cell Cycle CheckpointsApoptosisCell Line, TumorSignal TransductionCyclin-Dependent Kinase Inhibitor p21Chromosomal InstabilityMad2 ProteinsCell DivisionAtaxia TelangiectasiaCyclinsGenomic InstabilityMolecular Sequence DataNocodazoleHeLa CellsProtein Kinase InhibitorsKinetochoresGenes, FungalCell LineRadiation ToleranceDNA, FungalDNA Breaks, Double-StrandedModels, BiologicalPhosphatidylinositol 3-KinasesCyclin-Dependent KinasesHistonesCyclin B1G1 Phase Cell Cycle CheckpointsProtein BindingFibroblastsMethyl MethanesulfonateRNA, Small InterferingGene DeletionBase SequenceCell ProliferationCyclin-Dependent Kinase 2Flow CytometryCell NucleusAmino Acid SequenceMAP Kinase Signaling SystemCell SurvivalTumor Cells, CulturedEnzyme ActivationCdc20 ProteinsRetinoblastoma ProteinRepressor ProteinsDNABRCA1 ProteinCDC2-CDC28 KinasesBlotting, WesternPhenotypeAneuploidyProtein-Tyrosine KinasesRNA InterferenceCDC28 Protein Kinase, S cerevisiaeChromosome SegregationCells, CulturedTime FactorsTransfectionCaffeineNucleic Acid Synthesis InhibitorsAntineoplastic AgentsAurora Kinases