Cell CycleCell Cycle ProteinsCell DivisionGenes, cdcCell DifferentiationMitosisDNA DamageG2 PhaseCheckpoint Kinase 2Protein-Serine-Threonine KinasesCell Cycle CheckpointsS PhaseProtein KinasesDNA ReplicationSpindle Apparatuscdc25 PhosphatasesMutationAtaxia Telangiectasia Mutated ProteinsDNA-Binding ProteinsG1 PhaseHydroxyureaNuclear ProteinsSchizosaccharomycesSaccharomyces cerevisiaeCDC2 Protein KinaseDNA RepairMolecular Sequence DataSaccharomyces cerevisiae ProteinsFungal ProteinsG2 Phase Cell Cycle CheckpointsCyclinsPhosphorylationSchizosaccharomyces pombe ProteinsM Phase Cell Cycle CheckpointsSignal TransductionTumor Suppressor ProteinsTumor Suppressor Protein p53Genes, FungalCell LineModels, BiologicalGamma RaysCells, CulturedCyclin BBase SequenceMad2 ProteinsApoptosisCell ProliferationPhenotypeAmino Acid SequenceCell NucleusCyclin-Dependent KinasesCyclin B1Transcription FactorsCyclin-Dependent Kinase Inhibitor p21Flow CytometryHeLa CellsCell Line, TumorChromosomal InstabilityAtaxia TelangiectasiaRadiation, IonizingGene Expression RegulationUltraviolet RaysRetinoblastoma ProteinDNA, FungalTime FactorsRNA, MessengerIntracellular Signaling Peptides and ProteinsCyclin-Dependent Kinase 2DNAProtein BindingFibroblastsRepressor ProteinsHistonesTumor Cells, CulturedTranscription, GeneticCyclin ARadiation ToleranceInterphaseCentrosomeGenomic InstabilityG1 Phase Cell Cycle CheckpointsGene Expression Regulation, DevelopmentalGene DeletionCdc20 ProteinsStem CellsRNA, Small InterferingUbiquitin-Protein Ligase ComplexesCarrier ProteinsCell SurvivalChromatinBlotting, WesternAnaphase-Promoting Complex-CyclosomeCell Nucleus DivisionCaulobacter crescentusRNA InterferenceNocodazoleTransfectionGene ExpressionChromosome SegregationSequence Homology, Amino Acid