Cell CycleCell Cycle ProteinsGenes, cdcCheckpoint Kinase 2DNA DamageG2 PhaseCell Cycle CheckpointsMitosisProtein-Serine-Threonine KinasesAtaxia Telangiectasia Mutated ProteinsS PhaseMutationProtein KinasesDNA RepairG2 Phase Cell Cycle CheckpointsG1 PhasePoint MutationDNA-Binding ProteinsTumor Suppressor Protein p53HydroxyureaM Phase Cell Cycle CheckpointsNuclear ProteinsSpindle ApparatusTumor Suppressor ProteinsDNA ReplicationGamma RaysMutation, MissenseAtaxia TelangiectasiaSaccharomyces cerevisiae Proteinscdc25 PhosphatasesRadiation, IonizingPhosphorylationSchizosaccharomycesCyclinsCyclin-Dependent Kinase Inhibitor p21Saccharomyces cerevisiaeCDC2 Protein KinaseSchizosaccharomyces pombe ProteinsFungal ProteinsCyclin BUltraviolet RaysMolecular Sequence DataCell DivisionRadiation ToleranceChromosomal InstabilityApoptosisGenomic InstabilityCell LineG1 Phase Cell Cycle CheckpointsBase SequenceSignal TransductionCell Line, TumorCyclin B1HeLa CellsIntracellular Signaling Peptides and ProteinsS Phase Cell Cycle CheckpointsGenes, FungalFibroblastsNocodazoleDNA Breaks, Double-StrandedGenes, p53Retinoblastoma ProteinAmino Acid SequenceBRCA1 ProteinModels, BiologicalMad2 ProteinsDNAGene DeletionFrameshift MutationDNA, FungalPhenotypeCyclin-Dependent Kinase 2HistonesFlow CytometryProtein BindingTumor Cells, CulturedAllelesCell NucleusRepressor ProteinsCell ProliferationKinetochoresCells, CulturedDNA Repair EnzymesCell SurvivalCyclin EMethyl MethanesulfonateMimosineGerm-Line MutationCarrier ProteinsRNA, Small InterferingDNA PrimersCDC2-CDC28 KinasesCyclin-Dependent KinasesTranscription FactorsTransfectionNeoplasm ProteinsCaffeineMutagensCyclin AAphidicolin