Cell CycleCell Cycle ProteinsGenes, cdcDNA DamageCheckpoint Kinase 2G2 PhaseCell Cycle CheckpointsMitosisProtein-Serine-Threonine KinasesS PhaseAtaxia Telangiectasia Mutated ProteinsProtein KinasesG1 PhaseG2 Phase Cell Cycle CheckpointsDNA RepairHydroxyureaSpindle ApparatusM Phase Cell Cycle CheckpointsDNA-Binding ProteinsNuclear ProteinsTumor Suppressor Protein p53DNA ReplicationGamma RaysTumor Suppressor ProteinsSaccharomyces cerevisiae ProteinsCyclinsSchizosaccharomycesMutationMad2 ProteinsFungal ProteinsCyclin-Dependent Kinase Inhibitor p21Schizosaccharomyces pombe ProteinsSaccharomyces cerevisiaecdc25 PhosphatasesCell DivisionPhosphorylationCDC2 Protein KinaseCyclin BAtaxia TelangiectasiaRadiation, IonizingApoptosisChromosomal InstabilityUltraviolet RaysG1 Phase Cell Cycle CheckpointsGenes, FungalMolecular Sequence DataRetinoblastoma ProteinRadiation ToleranceCell Line, TumorIntracellular Signaling Peptides and ProteinsCyclin B1Cell LineGenomic InstabilitySignal TransductionS Phase Cell Cycle CheckpointsHeLa CellsCyclin-Dependent Kinase 2Cell ProliferationDNA, FungalNocodazoleFlow CytometryFibroblastsBase SequenceModels, BiologicalCyclin EDNA Breaks, Double-StrandedGene DeletionCyclin-Dependent Kinase Inhibitor p27Cell NucleusTumor Cells, CulturedHistonesRepressor ProteinsCDC28 Protein Kinase, S cerevisiaeDNACDC2-CDC28 KinasesCyclin AMenstrual CycleAneuploidyCell SurvivalBRCA1 ProteinCyclin D1Cells, CulturedGenes, p53PhenotypeMimosineChromosomes, FungalNeoplasm ProteinsAmino Acid SequenceGene Expression Regulation, NeoplasticInterphaseRNA, Small InterferingProtein BindingKinetochoresTime FactorsCyclin-Dependent Kinase 4AphidicolinCyclin-Dependent KinasesCentrosomeTranscription FactorsAntineoplastic Agents