Cell CycleCell Cycle ProteinsDNA DamageGenes, cdcCheckpoint Kinase 2G2 PhaseCell Cycle CheckpointsMitosisProtein-Serine-Threonine KinasesS PhaseAtaxia Telangiectasia Mutated ProteinsProtein KinasesDNA RepairG1 PhaseG2 Phase Cell Cycle CheckpointsHydroxyureaSpindle ApparatusM Phase Cell Cycle CheckpointsDNA-Binding ProteinsNuclear ProteinsTumor Suppressor Protein p53DNA ReplicationGamma RaysTumor Suppressor ProteinsSaccharomyces cerevisiae ProteinsSchizosaccharomycesCyclinsMutationFungal ProteinsMad2 ProteinsSchizosaccharomyces pombe ProteinsCyclin-Dependent Kinase Inhibitor p21Saccharomyces cerevisiaecdc25 PhosphatasesPhosphorylationCell DivisionCDC2 Protein KinaseApoptosisRadiation, IonizingCyclin BAtaxia TelangiectasiaUltraviolet RaysChromosomal InstabilityGenes, FungalG1 Phase Cell Cycle CheckpointsMolecular Sequence DataRadiation ToleranceCell Line, TumorIntracellular Signaling Peptides and ProteinsRetinoblastoma ProteinCell LineGenomic InstabilitySignal TransductionCyclin B1HeLa CellsS Phase Cell Cycle CheckpointsCell ProliferationCyclin-Dependent Kinase 2DNA, FungalFlow CytometryNocodazoleFibroblastsModels, BiologicalBase SequenceDNA Breaks, Double-StrandedCyclin EGene DeletionHistonesCell NucleusDNACyclin-Dependent Kinase Inhibitor p27Tumor Cells, CulturedRepressor ProteinsCell SurvivalCDC28 Protein Kinase, S cerevisiaeCells, CulturedCDC2-CDC28 KinasesCyclin ABRCA1 ProteinAneuploidyMenstrual CycleGenes, p53Cyclin D1PhenotypeTime FactorsAmino Acid SequenceMimosineChromosomes, FungalNeoplasm ProteinsRNA, Small InterferingProtein BindingGene Expression Regulation, NeoplasticInterphaseKinetochoresMethyl MethanesulfonateCyclin-Dependent Kinase 4DNA Repair EnzymesBlotting, WesternAphidicolinAntineoplastic Agents