Cell CycleDNA DamageCheckpoint Kinase 2Cell Cycle ProteinsG2 PhaseGenes, cdcCell Cycle CheckpointsAtaxia Telangiectasia Mutated ProteinsProtein-Serine-Threonine KinasesMitosisS PhaseProtein KinasesG2 Phase Cell Cycle CheckpointsDNA RepairM Phase Cell Cycle CheckpointsDNA ReplicationG1 PhaseDNA-Binding ProteinsHydroxyureaNuclear ProteinsTumor Suppressor Protein p53Tumor Suppressor Proteinscdc25 PhosphatasesPhosphorylationSaccharomyces cerevisiae ProteinsSpindle ApparatusSchizosaccharomycesGamma RaysRadiation, IonizingCDC2 Protein KinaseSchizosaccharomyces pombe ProteinsSaccharomyces cerevisiaeCyclin BMutationGenomic InstabilityS Phase Cell Cycle CheckpointsDNA Breaks, Double-StrandedUltraviolet RaysMethyl MethanesulfonateAtaxia TelangiectasiaCyclin-Dependent Kinase Inhibitor p21NocodazoleCyclinsRadiation ToleranceSignal TransductionCell DivisionApoptosisIntracellular Signaling Peptides and ProteinsFungal ProteinsKinetochoresHeLa CellsCyclin B1Cell Line, TumorCell LineChromosomal InstabilityG1 Phase Cell Cycle CheckpointsHistonesDNA, FungalModels, BiologicalBRCA1 ProteinFibroblastsMolecular Sequence DataDNACell NucleusFlow CytometryDNA Repair EnzymesNucleic Acid Synthesis InhibitorsRNA, Small InterferingCyclin-Dependent Kinase 2Chromosome SegregationMetaphaseDose-Response Relationship, RadiationRetinoblastoma ProteinProtein BindingCell SurvivalMutagensCaffeineAnaphaseChromosomal Proteins, Non-HistoneAphidicolinCdc20 ProteinsReplication Protein AExodeoxyribonucleasesAmino Acid SequenceCyclin-Dependent KinasesChromatinCell ProliferationTelomereTumor Cells, CulturedExonucleasesGenes, p53Cells, CulturedCyclin AHCT116 CellsCentrosomeRepressor ProteinsTime FactorsCarrier ProteinsRecombination, GeneticGenes, Fungal