Cell CycleCell Cycle ProteinsCell DivisionGenes, cdcMitosisDNA DamageG2 PhaseCheckpoint Kinase 2Protein-Serine-Threonine KinasesCell Cycle CheckpointsMutationS PhaseProtein KinasesDNA ReplicationSpindle Apparatuscdc25 PhosphatasesAtaxia Telangiectasia Mutated ProteinsG1 PhaseSaccharomyces cerevisiaeHydroxyureaSchizosaccharomycesDNA-Binding ProteinsDNA RepairNuclear ProteinsCDC2 Protein KinaseSaccharomyces cerevisiae ProteinsFungal ProteinsG2 Phase Cell Cycle CheckpointsMolecular Sequence DataSchizosaccharomyces pombe ProteinsM Phase Cell Cycle CheckpointsCyclinsGenes, FungalPhosphorylationTumor Suppressor Protein p53Point MutationTumor Suppressor ProteinsGamma RaysCyclin BBase SequenceMad2 ProteinsModels, BiologicalMutation, MissenseAmino Acid SequenceCyclin B1HeLa CellsCell LineChromosomal InstabilityAtaxia TelangiectasiaCyclin-Dependent KinasesApoptosisDNA, FungalUltraviolet RaysSignal TransductionPhenotypeRadiation, IonizingCyclin-Dependent Kinase Inhibitor p21Cell NucleusCell Line, TumorRetinoblastoma ProteinCyclin-Dependent Kinase 2DNAIntracellular Signaling Peptides and ProteinsProtein BindingAllelesFibroblastsGenomic InstabilityRadiation ToleranceFlow CytometryCentrosomeGene DeletionCell ProliferationCyclin AG1 Phase Cell Cycle CheckpointsTime FactorsCdc20 ProteinsHistonesCells, CulturedUbiquitin-Protein Ligase ComplexesInterphaseAnaphase-Promoting Complex-CyclosomeCell Nucleus DivisionSequence Homology, Amino AcidRepressor ProteinsNocodazoleCaulobacter crescentusChromosome SegregationCarrier ProteinsTranscription FactorsCDC2-CDC28 KinasesTranscription, GeneticS Phase Cell Cycle CheckpointsTumor Cells, CulturedAsymmetric Cell DivisionGenes, p53DNA Breaks, Double-StrandedChromatinEscherichia coliChromosomesGene Expression Regulation