Cell CycleCell Cycle ProteinsGenes, cdcCheckpoint Kinase 2DNA DamageG2 PhaseCell Cycle CheckpointsMitosisProtein-Serine-Threonine KinasesAtaxia Telangiectasia Mutated ProteinsCell Line, TumorS PhaseProtein KinasesDNA RepairTumor Suppressor Protein p53HydroxyureaG2 Phase Cell Cycle CheckpointsSpindle ApparatusM Phase Cell Cycle CheckpointsDNA-Binding ProteinsG1 PhaseTumor Suppressor ProteinsNuclear ProteinsGamma RaysDNA ReplicationTumor Cells, CulturedMutationMad2 ProteinsSchizosaccharomycesSaccharomyces cerevisiae ProteinsFungal ProteinsSchizosaccharomyces pombe ProteinsCell DivisionPhosphorylationRadiation, IonizingSaccharomyces cerevisiaeAtaxia TelangiectasiaChromosomal InstabilityApoptosiscdc25 PhosphatasesCyclin-Dependent Kinase Inhibitor p21CyclinsUltraviolet RaysRadiation ToleranceCDC2 Protein KinaseCyclin BGenes, FungalCell LineMolecular Sequence DataSignal TransductionIntracellular Signaling Peptides and ProteinsGenomic InstabilityCell ProliferationG1 Phase Cell Cycle CheckpointsNeoplasm ProteinsFlow CytometryBase SequenceNeoplasmsHeLa CellsFibroblastsCell SurvivalCyclin B1Retinoblastoma ProteinGene Expression Regulation, NeoplasticDNA, FungalS Phase Cell Cycle CheckpointsGene DeletionModels, BiologicalNocodazoleGenes, p53DNA Breaks, Double-StrandedAntineoplastic AgentsPhenotypeRepressor ProteinsAneuploidyBRCA1 ProteinRNA, Small InterferingCells, CulturedCell NucleusTumor Markers, BiologicalCyclin-Dependent Kinase 2HistonesDNATime FactorsTransfectionCDC28 Protein Kinase, S cerevisiaeGenes, Tumor SuppressorNeoplasms, ExperimentalBlotting, WesternChromosomes, FungalRNA, MessengerAmino Acid SequenceProtein BindingCyclin EDelirium, Dementia, Amnestic, Cognitive DisordersTumor BurdenHCT116 CellsDNA Repair EnzymesDNA PrimersColonic Neoplasms