Cell CycleCell Cycle ProteinsCell DivisionGenes, cdcMitosisDNA DamageG2 PhaseCheckpoint Kinase 2Cell Cycle CheckpointsProtein-Serine-Threonine KinasesS PhaseDNA ReplicationG1 PhaseProtein KinasesSpindle Apparatuscdc25 PhosphatasesAtaxia Telangiectasia Mutated ProteinsMutationCyclinsHydroxyureaSchizosaccharomycesCDC2 Protein KinaseDNA-Binding ProteinsSaccharomyces cerevisiaeCyclin-Dependent Kinase Inhibitor p21Nuclear ProteinsDNA RepairTumor Suppressor ProteinsSaccharomyces cerevisiae ProteinsFungal ProteinsG2 Phase Cell Cycle CheckpointsCyclin-Dependent Kinase Inhibitor p27Tumor Suppressor Protein p53M Phase Cell Cycle CheckpointsSchizosaccharomyces pombe ProteinsPhosphorylationCyclin-Dependent KinasesMolecular Sequence DataGenes, FungalGamma RaysCyclin BMad2 ProteinsApoptosisModels, BiologicalRetinoblastoma ProteinHeLa CellsSignal TransductionCyclin B1Cell ProliferationCell Line, TumorChromosomal InstabilityCell NucleusBase SequenceAtaxia TelangiectasiaCyclin-Dependent Kinase 2Cell LineRadiation, IonizingDNA, FungalUltraviolet RaysG1 Phase Cell Cycle CheckpointsPhenotypeCyclin AAmino Acid SequenceIntracellular Signaling Peptides and ProteinsFlow CytometryFibroblastsCells, CulturedProtein BindingTime FactorsRadiation ToleranceCentrosomeGenomic InstabilityMimosineDNACdc20 ProteinsCyclin-Dependent Kinase 4CDC2-CDC28 KinasesHistonesUbiquitin-Protein Ligase ComplexesInterphaseCell Nucleus DivisionAnaphase-Promoting Complex-CyclosomeNocodazoleTumor Cells, CulturedCyclin-Dependent Kinase Inhibitor p16Caulobacter crescentusChromosome SegregationCyclin ERNA, Small InterferingCarrier ProteinsGene DeletionCyclin D1S Phase Cell Cycle CheckpointsTranscription, GeneticTranscription FactorsGene Expression RegulationRNA InterferenceCyclin-Dependent Kinase Inhibitor p18Asymmetric Cell DivisionCell Survival