Cell CycleCell Cycle ProteinsCheckpoint Kinase 2Genes, cdcMitosisDNA DamageG2 PhaseCell Cycle CheckpointsS PhaseM Phase Cell Cycle CheckpointsProtein-Serine-Threonine KinasesHydroxyureaG1 PhaseProtein KinasesSchizosaccharomycesDNA ReplicationAtaxia Telangiectasia Mutated ProteinsSpindle ApparatusNuclear ProteinsDNA-Binding ProteinsSchizosaccharomyces pombe ProteinsMutationCDC2 Protein KinaseG2 Phase Cell Cycle Checkpointscdc25 PhosphatasesCyclinsSaccharomyces cerevisiae ProteinsDNA RepairPhosphorylationKinetochoresTumor Suppressor Protein p53Molecular Sequence DataFungal ProteinsCyclin BCell DivisionTumor Suppressor ProteinsSaccharomyces cerevisiaeNocodazoleGamma RaysHeLa CellsSignal TransductionS Phase Cell Cycle CheckpointsCyclin-Dependent Kinase Inhibitor p21Chromosome SegregationCell LineAmino Acid SequenceRadiation, IonizingApoptosisChromosomal InstabilityBase SequenceAnaphaseCell Line, TumorCell NucleusRepressor ProteinsTranscription FactorsMad2 ProteinsModels, BiologicalProtein BindingDNA, FungalTranscription, GeneticUltraviolet RaysCell ProliferationNucleic Acid Synthesis InhibitorsHistonesGenes, FungalGene Expression RegulationCyclin-Dependent Kinase 2DNAMeiosisCarrier Proteins14-3-3 ProteinsGene Expression Regulation, FungalRadiation ToleranceChromatinBRCA1 ProteinRNA, Small InterferingExonucleasesChromosomesCdc20 ProteinsG1 Phase Cell Cycle CheckpointsTime FactorsFlow CytometryRNA InterferenceDNA Breaks, Double-StrandedSequence Homology, Amino AcidCells, CulturedTumor Cells, CulturedAtaxia TelangiectasiaIntracellular Signaling Peptides and ProteinsGene DeletionCyclin D1Retinoblastoma ProteinCyclin B1PhenotypeCell SurvivalRNA, MessengerMenstrual CycleDose-Response Relationship, RadiationGene Expression ProfilingMicrotubules