Cell CycleCell Cycle ProteinsCell DivisionGenes, cdcMitosisDNA DamageG2 PhaseCheckpoint Kinase 2Protein-Serine-Threonine KinasesCell Cycle CheckpointsS PhaseProtein KinasesDNA ReplicationSpindle Apparatuscdc25 PhosphatasesAtaxia Telangiectasia Mutated ProteinsMutationG1 PhaseHydroxyureaSchizosaccharomycesSaccharomyces cerevisiaeDNA RepairDNA-Binding ProteinsCDC2 Protein KinaseNuclear ProteinsFungal ProteinsSaccharomyces cerevisiae ProteinsG2 Phase Cell Cycle CheckpointsM Phase Cell Cycle CheckpointsSchizosaccharomyces pombe ProteinsCyclinsMolecular Sequence DataGenes, FungalPhosphorylationTumor Suppressor ProteinsTumor Suppressor Protein p53Gamma RaysCyclin BMad2 ProteinsModels, BiologicalSignal TransductionCyclin B1Base SequenceChromosomal InstabilityApoptosisCyclin-Dependent KinasesAtaxia TelangiectasiaHeLa CellsRadiation, IonizingCyclin-Dependent Kinase Inhibitor p21DNA, FungalAmino Acid SequenceUltraviolet RaysCell NucleusPhenotypeCell LineCell Line, TumorCyclin-Dependent Kinase 2Retinoblastoma ProteinIntracellular Signaling Peptides and ProteinsFlow CytometryRadiation ToleranceCell ProliferationCentrosomeGenomic InstabilityCyclin AG1 Phase Cell Cycle CheckpointsDNAFibroblastsCdc20 ProteinsTime FactorsHistonesUbiquitin-Protein Ligase ComplexesProtein BindingInterphaseCell Nucleus DivisionAnaphase-Promoting Complex-CyclosomeCells, CulturedGene DeletionNocodazoleCaulobacter crescentusChromosome SegregationAllelesRepressor ProteinsCDC2-CDC28 KinasesS Phase Cell Cycle CheckpointsAsymmetric Cell DivisionSequence Homology, Amino AcidTranscription FactorsGene Expression RegulationTranscription, GeneticDNA Breaks, Double-StrandedCarrier ProteinsRNA, Small InterferingChromatinAneuploidyTumor Cells, CulturedChromosomesRNA InterferenceCyclin-Dependent Kinase Inhibitor p27