Checkpoint Kinase 2Cell CycleCell Cycle ProteinsGenes, cdcDNA DamageProtein-Serine-Threonine KinasesProtein KinasesG2 PhaseCell Cycle CheckpointsMitosisAtaxia Telangiectasia Mutated ProteinsS PhaseM Phase Cell Cycle CheckpointsHydroxyureaSpindle ApparatusDNA RepairG2 Phase Cell Cycle CheckpointsDNA ReplicationDNA-Binding ProteinsNuclear ProteinsSaccharomyces cerevisiae ProteinsPhosphorylationMutationSchizosaccharomycescdc25 PhosphatasesSchizosaccharomyces pombe ProteinsG1 PhaseTumor Suppressor ProteinsTumor Suppressor Protein p53Saccharomyces cerevisiaeCDC2 Protein KinaseGamma RaysFungal ProteinsRadiation, IonizingIntracellular Signaling Peptides and ProteinsUltraviolet RaysS Phase Cell Cycle CheckpointsCyclin BChromosomal InstabilityGenomic InstabilityApoptosisMolecular Sequence DataMad2 ProteinsCyclin-Dependent Kinase Inhibitor p21Signal TransductionCell Line, TumorAtaxia TelangiectasiaCell DivisionNocodazoleCyclinsHeLa CellsKinetochoresProtein Kinase InhibitorsGenes, FungalCell LineDNA, FungalRadiation ToleranceDNA Breaks, Double-StrandedModels, BiologicalPhosphatidylinositol 3-KinasesProtein BindingHistonesCyclin-Dependent KinasesGene DeletionBase SequenceMethyl MethanesulfonateG1 Phase Cell Cycle CheckpointsCyclin B1FibroblastsAmino Acid SequenceRNA, Small InterferingCell NucleusBRCA1 ProteinMAP Kinase Signaling SystemCyclin-Dependent Kinase 2DNACell SurvivalCdc20 ProteinsFlow CytometryEnzyme ActivationRepressor ProteinsCell ProliferationTumor Cells, CulturedCDC2-CDC28 KinasesAneuploidyRetinoblastoma ProteinCDC28 Protein Kinase, S cerevisiaeProtein-Tyrosine KinasesChromosome SegregationRNA InterferencePhenotypeBlotting, WesternCells, CulturedNucleic Acid Synthesis InhibitorsCaffeineProtein Structure, TertiaryTransfectionAurora KinasesHCT116 CellsTime Factors