Cell CycleCell Cycle ProteinsGenes, cdcDNA DamageCheckpoint Kinase 2G2 PhaseProtein-Serine-Threonine KinasesCell Cycle CheckpointsMitosisAtaxia Telangiectasia Mutated ProteinsDNA RepairS PhaseProtein KinasesCell BiologyNuclear ProteinsDNA-Binding ProteinsSaccharomyces cerevisiae ProteinsHydroxyureaG2 Phase Cell Cycle CheckpointsSpindle ApparatusM Phase Cell Cycle CheckpointsSaccharomyces cerevisiaeG1 PhaseModels, BiologicalDNA ReplicationGamma RaysTumor Suppressor Protein p53Mad2 ProteinsPhosphorylationSchizosaccharomycesTumor Suppressor ProteinsSchizosaccharomyces pombe ProteinsFungal ProteinsMutationSignal TransductionApoptosisAtaxia Telangiectasiacdc25 PhosphatasesChromosomal InstabilityRadiation, IonizingCyclinsCyclin-Dependent Kinase Inhibitor p21Ultraviolet RaysCDC2 Protein KinaseGenes, FungalCyclin BRadiation ToleranceMolecular BiologyCell DivisionIntracellular Signaling Peptides and ProteinsProtein BindingGenomic InstabilityG1 Phase Cell Cycle CheckpointsMolecular Sequence DataCyclin B1Models, GeneticDNA, FungalS Phase Cell Cycle CheckpointsNocodazoleCell Line, TumorCell LineDNA Breaks, Double-StrandedHeLa CellsRetinoblastoma ProteinFibroblastsGene DeletionAneuploidyProtein Structure, TertiaryBase SequenceBRCA1 ProteinRepressor ProteinsCDC28 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 SequenceAlleles