G2 PhaseCell CycleCell Cycle ProteinsGenes, cdcCheckpoint Kinase 2DNA DamageCell Cycle CheckpointsMitosisProtein-Serine-Threonine KinasesAtaxia Telangiectasia Mutated ProteinsS PhaseG2 Phase Cell Cycle CheckpointsProtein KinasesDNA RepairG1 PhaseTumor Suppressor Protein p53M Phase Cell Cycle CheckpointsHydroxyureaSpindle ApparatusDNA-Binding ProteinsNuclear ProteinsGamma RaysTumor Suppressor ProteinsDNA ReplicationAtaxia Telangiectasiacdc25 PhosphatasesRadiation, IonizingCyclinsCyclin-Dependent Kinase Inhibitor p21PhosphorylationSchizosaccharomycesSaccharomyces cerevisiae ProteinsCDC2 Protein KinaseMutationCyclin BSchizosaccharomyces pombe ProteinsSaccharomyces cerevisiaeFungal ProteinsRadiation ToleranceCell DivisionChromosomal InstabilityUltraviolet RaysApoptosisGenomic InstabilityG1 Phase Cell Cycle CheckpointsCyclin B1S Phase Cell Cycle CheckpointsNocodazoleCell Line, TumorSignal TransductionCell LineIntracellular Signaling Peptides and ProteinsDNA Breaks, Double-StrandedHeLa CellsRetinoblastoma ProteinMolecular Sequence DataMad2 ProteinsFibroblastsGenes, FungalBRCA1 ProteinModels, BiologicalFlow CytometryCyclin-Dependent Kinase 2HistonesGenes, p53DNA, FungalKinetochoresTumor Cells, CulturedCell ProliferationCell NucleusDNACyclin EGene DeletionMimosineBase SequenceMethyl MethanesulfonateDNA Repair EnzymesCell SurvivalRepressor ProteinsCDC2-CDC28 KinasesCyclin-Dependent KinasesRNA, Small InterferingCells, CulturedCaffeineCyclin AAphidicolinAmino Acid SequenceProtein BindingPhenotypeNucleic Acid Synthesis InhibitorsPolyploidyCentrosomeCyclin-Dependent Kinase Inhibitor p27MetaphaseThioguanineDose-Response Relationship, RadiationBlastulaNeoplasm ProteinsHCT116 CellsCyclin D1