Checkpoint Kinase 2Cell CycleCell Cycle ProteinsProtein-Serine-Threonine KinasesProtein KinasesDNA DamageGenes, cdcCell Cycle CheckpointsMitosisM Phase Cell Cycle CheckpointsG2 PhaseAtaxia Telangiectasia Mutated ProteinsS PhasePhosphorylationG2 Phase Cell Cycle CheckpointsSpindle ApparatusDNA ReplicationHydroxyureacdc25 PhosphatasesSaccharomyces cerevisiae ProteinsCDC2 Protein KinaseSchizosaccharomyces pombe ProteinsS Phase Cell Cycle CheckpointsSchizosaccharomycesNuclear ProteinsKinetochoresG1 PhaseDNA-Binding ProteinsMutationSaccharomyces cerevisiaeProtein Kinase InhibitorsTumor Suppressor ProteinsDNA RepairNocodazoleSignal TransductionIntracellular Signaling Peptides and ProteinsPhosphatidylinositol 3-KinasesTumor Suppressor Protein p53Cell Line, TumorHeLa CellsApoptosisCyclin BCell DivisionMAP Kinase Signaling SystemCdc20 ProteinsRadiation, IonizingFungal ProteinsChromosome SegregationCell LineMolecular Sequence DataProtein BindingModels, BiologicalAurora KinasesCyclin-Dependent Kinase Inhibitor p21CyclinsDNA Breaks, Double-StrandedRNA, Small InterferingMethyl MethanesulfonateUltraviolet RaysProtein-Tyrosine KinasesHistonesDNA, FungalGenomic InstabilityCyclin-Dependent KinasesEnzyme ActivationAmino Acid SequenceGamma RaysCell ProliferationCalcium-Calmodulin-Dependent Protein KinasesCell NucleusAnaphaseRNA InterferenceBlotting, WesternCyclin-Dependent Kinase 2Cell SurvivalCyclin B1CDC2-CDC28 KinasesUbiquitin-Protein Ligase ComplexesChromosomal Proteins, Non-HistoneMeiosisAnaphase-Promoting Complex-CyclosomeFlow Cytometrysrc-Family KinasesDNAProtein Structure, TertiaryG1 Phase Cell Cycle CheckpointsMetaphaseTransfectionGene Expression Regulation, FungalFibroblastsTumor Cells, CulturedTime Factorsp38 Mitogen-Activated Protein KinasesCarrier ProteinsCells, CulturedReplication Protein ABase SequenceProtein Kinase CTranscription FactorsNucleic Acid Synthesis Inhibitors