Cell CycleCell Cycle ProteinsGenes, cdcCheckpoint Kinase 2DNA DamageG2 PhaseCell Cycle CheckpointsMitosisProtein-Serine-Threonine KinasesAtaxia Telangiectasia Mutated ProteinsS PhaseProtein KinasesDNA RepairHydroxyureaG2 Phase Cell Cycle CheckpointsSpindle ApparatusM Phase Cell Cycle CheckpointsG1 PhaseDNA-Binding ProteinsNuclear ProteinsDNA ReplicationGamma RaysTumor Suppressor Protein p53Mad2 ProteinsSchizosaccharomycesSaccharomyces cerevisiae ProteinsTumor Suppressor ProteinsSchizosaccharomyces pombe ProteinsFungal ProteinsMutationSaccharomyces cerevisiaeAtaxia Telangiectasiacdc25 PhosphatasesChromosomal InstabilityRadiation, IonizingCyclinsCyclin-Dependent Kinase Inhibitor p21PhosphorylationUltraviolet RaysCDC2 Protein KinaseGenes, FungalCyclin BRadiation ToleranceCell DivisionIntracellular Signaling Peptides and ProteinsApoptosisGenomic InstabilityG1 Phase Cell Cycle CheckpointsMolecular Sequence DataCyclin B1DNA, FungalS Phase Cell Cycle CheckpointsNocodazoleCell Line, TumorSignal TransductionCell LineDNA Breaks, Double-StrandedHeLa CellsRetinoblastoma ProteinFibroblastsGene DeletionAneuploidyBase SequenceBRCA1 ProteinRepressor ProteinsModels, BiologicalCDC28 Protein Kinase, S cerevisiaeFlow CytometryCyclin-Dependent Kinase 2HistonesChromosomes, FungalGenes, p53KinetochoresPhenotypeTumor Cells, CulturedCell ProliferationCell NucleusDNANeoplasm ProteinsCyclin EMimosineMethyl MethanesulfonateDNA Repair EnzymesCell SurvivalCDC2-CDC28 KinasesCyclin-Dependent KinasesCalcium-Binding ProteinsGene Expression Regulation, NeoplasticRNA, Small InterferingCells, CulturedCaffeineCyclin AAphidicolinAmino Acid SequenceProtein BindingAllelesNucleic Acid Synthesis InhibitorsPolyploidyCentrosomeCyclin-Dependent Kinase Inhibitor p27