Cell CycleCell Cycle ProteinsGenes, cdcCheckpoint Kinase 2DNA DamageG2 PhaseCell Cycle CheckpointsMitosisProtein-Serine-Threonine KinasesAtaxia Telangiectasia Mutated ProteinsS PhaseProtein KinasesDNA RepairHydroxyureaSpindle ApparatusG2 Phase Cell Cycle CheckpointsM Phase Cell Cycle CheckpointsG1 PhaseDNA-Binding ProteinsNuclear ProteinsDNA ReplicationTumor Suppressor Protein p53Gamma RaysMad2 ProteinsSaccharomyces cerevisiae ProteinsMutationSchizosaccharomycesTumor Suppressor ProteinsFungal ProteinsSchizosaccharomyces pombe ProteinsSaccharomyces cerevisiaeAtaxia TelangiectasiaChromosomal Instabilitycdc25 PhosphatasesRadiation, IonizingPhosphorylationUltraviolet RaysCyclinsCyclin-Dependent Kinase Inhibitor p21CDC2 Protein KinaseGenes, FungalCyclin BGenomic InstabilityMolecular Sequence DataRadiation ToleranceCell DivisionIntracellular Signaling Peptides and ProteinsApoptosisG1 Phase Cell Cycle CheckpointsCell LineDNA, FungalCyclin B1Cell Line, TumorSignal TransductionS Phase Cell Cycle CheckpointsBase SequenceHeLa CellsNocodazoleDNA Breaks, Double-StrandedGene DeletionFibroblastsRetinoblastoma ProteinModels, BiologicalDrug StabilityAneuploidyRepressor ProteinsBRCA1 ProteinFlow CytometryCDC28 Protein Kinase, S cerevisiaeCyclin-Dependent Kinase 2HistonesChromosomes, FungalDNAPhenotypeAmino Acid SequenceProtein StabilityGenes, p53Cell NucleusKinetochoresCell ProliferationTumor Cells, CulturedProtein BindingNeoplasm ProteinsCyclin ECell SurvivalCells, CulturedDNA Repair EnzymesMethyl MethanesulfonateMimosineRNA, Small InterferingTime FactorsCDC2-CDC28 KinasesGene Expression Regulation, NeoplasticCalcium-Binding ProteinsCyclin-Dependent KinasesEnzyme StabilityAllelesCaffeineCyclin AAphidicolin