Cell CycleProtein Inhibitors of Activated STATCell Cycle ProteinsGenes, cdcCheckpoint Kinase 2DNA DamageG2 PhaseCell Cycle CheckpointsMitosisProtein-Serine-Threonine KinasesAtaxia Telangiectasia Mutated ProteinsS PhaseProtein KinasesDNA RepairHydroxyureaG2 Phase Cell Cycle CheckpointsSpindle ApparatusM Phase Cell Cycle CheckpointsDNA-Binding ProteinsG1 PhaseNuclear ProteinsDNA ReplicationGamma RaysTumor Suppressor Protein p53Mad2 ProteinsSchizosaccharomycesSaccharomyces cerevisiae ProteinsTumor Suppressor ProteinsMutationSchizosaccharomyces pombe ProteinsFungal ProteinsSaccharomyces cerevisiaeAtaxia TelangiectasiaPhosphorylationcdc25 PhosphatasesChromosomal InstabilityRadiation, IonizingCyclinsCyclin-Dependent Kinase Inhibitor p21Ultraviolet RaysIntracellular Signaling Peptides and ProteinsCDC2 Protein Kinase5-Lipoxygenase-Activating Protein InhibitorsMolecular Sequence DataGenes, FungalCyclin BApoptosisRadiation ToleranceCell DivisionGenomic InstabilitySignal TransductionCell LineG1 Phase Cell Cycle CheckpointsCell Line, TumorCyclin B1DNA, FungalHeLa CellsS Phase Cell Cycle CheckpointsNocodazoleBase SequenceProtein BindingDNA Breaks, Double-StrandedModels, BiologicalRetinoblastoma ProteinAmino Acid SequenceFibroblastsGene DeletionAneuploidyCell NucleusBRCA1 ProteinCarrier ProteinsRepressor ProteinsCDC28 Protein Kinase, S cerevisiaeFlow CytometryCyclin-Dependent Kinase 2Cells, CulturedTumor Cells, CulturedCell ProliferationHistonesChromosomes, FungalEnzyme InhibitorsGenes, p53SUMO-1 ProteinKinetochoresRNA, Small InterferingPhenotypeDNASmall Ubiquitin-Related Modifier ProteinsNeoplasm ProteinsCyclin EMimosineMethyl MethanesulfonateDNA Repair EnzymesCell SurvivalCDC2-CDC28 KinasesProteinsSumoylationCyclin-Dependent KinasesCalcium-Binding ProteinsGene Expression Regulation, Neoplastic