Cell CycleCell Cycle ProteinsGenes, cdcDNA DamageCheckpoint Kinase 2G2 PhaseGenomic InstabilityCell Cycle CheckpointsMitosisProtein-Serine-Threonine KinasesAtaxia Telangiectasia Mutated ProteinsDNA RepairS PhaseProtein KinasesDNA-Binding ProteinsSpindle ApparatusHydroxyureaNuclear ProteinsM Phase Cell Cycle CheckpointsDNA ReplicationG2 Phase Cell Cycle CheckpointsMutationTumor Suppressor Protein p53G1 PhaseTumor Suppressor ProteinsSaccharomyces cerevisiae ProteinsGamma RaysMad2 ProteinsSchizosaccharomycesMolecular Sequence DataChromosomal InstabilitySaccharomyces cerevisiaeSchizosaccharomyces pombe ProteinsDrug StabilityFungal ProteinsRadiation, IonizingAtaxia TelangiectasiaUltraviolet RaysPhosphorylationcdc25 PhosphatasesProtein StabilityCyclin-Dependent Kinase Inhibitor p21Base SequenceCDC2 Protein KinaseCyclinsCyclin BGenes, FungalDNA Breaks, Double-StrandedRadiation ToleranceCell LineApoptosisIntracellular Signaling Peptides and ProteinsCell DivisionEnzyme StabilityHeLa CellsCell Line, TumorS Phase Cell Cycle CheckpointsDNAFibroblastsDNA, FungalHistonesAmino Acid SequenceSignal TransductionGene DeletionG1 Phase Cell Cycle CheckpointsModels, BiologicalBRCA1 ProteinCyclin B1AneuploidyProtein BindingNocodazolePhenotypeRepressor ProteinsRNA StabilityCell NucleusRetinoblastoma ProteinFlow CytometryCyclin-Dependent Kinase 2Genes, p53DNA Repair EnzymesCells, CulturedCell ProliferationRNA, Small InterferingMethyl MethanesulfonateTelomereKinetochoresTumor Cells, CulturedChromosomes, FungalCell SurvivalRecombination, GeneticNeoplasm ProteinsCDC28 Protein Kinase, S cerevisiaePolyploidyChromatinModels, GeneticAllelesChromosome AberrationsGene Expression Regulation, NeoplasticTime FactorsDNA Primers