Cell CycleCell Cycle ProteinsGenes, cdcAllelesCheckpoint Kinase 2DNA DamageG2 PhaseCell Cycle CheckpointsMitosisProtein-Serine-Threonine KinasesAtaxia Telangiectasia Mutated ProteinsMutationS PhaseProtein KinasesDNA RepairHydroxyureaSpindle ApparatusG2 Phase Cell Cycle CheckpointsDNA-Binding ProteinsM Phase Cell Cycle CheckpointsNuclear ProteinsPoint MutationG1 PhaseTumor Suppressor Protein p53DNA ReplicationGamma RaysSaccharomyces cerevisiae ProteinsFungal ProteinsSchizosaccharomycesTumor Suppressor ProteinsMad2 ProteinsSaccharomyces cerevisiaeMutation, MissenseSchizosaccharomyces pombe ProteinsMolecular Sequence DataAtaxia TelangiectasiaChromosomal Instabilitycdc25 PhosphatasesPhosphorylationRadiation, IonizingGenes, FungalUltraviolet RaysCyclinsBase SequenceCyclin-Dependent Kinase Inhibitor p21CDC2 Protein KinaseCyclin BCell DivisionIntracellular Signaling Peptides and ProteinsRadiation ToleranceApoptosisGenomic InstabilityCell LineGene DeletionPhenotypeDNA, FungalG1 Phase Cell Cycle CheckpointsSignal TransductionCell Line, TumorHeLa CellsCyclin B1Amino Acid SequenceGenotypeS Phase Cell Cycle CheckpointsFibroblastsGenes, p53NocodazoleDNARepressor ProteinsDNA Breaks, Double-StrandedRetinoblastoma ProteinModels, BiologicalBRCA1 ProteinFrameshift MutationAneuploidyDNA PrimersChromosomes, FungalCDC28 Protein Kinase, S cerevisiaeHistonesFlow CytometryProtein BindingCyclin-Dependent Kinase 2Neoplasm ProteinsTumor Cells, CulturedCell NucleusCell ProliferationModels, GeneticCells, CulturedKinetochoresDNA Repair EnzymesCell SurvivalGene Expression Regulation, NeoplasticGerm-Line MutationMethyl MethanesulfonateCarrier ProteinsCyclin ETranscription FactorsMimosineCalcium-Binding ProteinsRNA, Small Interfering