Cell CycleGenes, cdcCell Cycle ProteinsCell Line, TumorTumor Cells, CulturedNeoplasmsG2 PhaseDNA DamageCheckpoint Kinase 2Cell Cycle CheckpointsMitosisProtein-Serine-Threonine KinasesS PhaseG1 PhaseAtaxia Telangiectasia Mutated ProteinsTumor Suppressor Protein p53Protein KinasesCyclinsDNA-Binding ProteinsG2 Phase Cell Cycle CheckpointsDNA RepairCell DivisionNuclear ProteinsDNA ReplicationHydroxyureaSpindle ApparatusTumor Suppressor ProteinsMutationM Phase Cell Cycle Checkpointscdc25 PhosphatasesCyclin-Dependent Kinase Inhibitor p21Cell ProliferationSaccharomyces cerevisiae ProteinsCDC2 Protein KinaseApoptosisMolecular Sequence DataFungal ProteinsSaccharomyces cerevisiaeGamma RaysPhosphorylationSchizosaccharomycesCell LineSignal TransductionMad2 ProteinsBase SequenceGenes, FungalSchizosaccharomyces pombe ProteinsRetinoblastoma ProteinGene Expression Regulation, NeoplasticRadiation, IonizingCyclin BAtaxia TelangiectasiaChromosomal InstabilityUltraviolet RaysRNA, MessengerHeLa CellsCyclin ARadiation ToleranceGene Expression ProfilingG1 Phase Cell Cycle CheckpointsGene Expression RegulationModels, BiologicalRepressor ProteinsCyclin EFlow CytometryTranscription FactorsTranscription, GeneticIntracellular Signaling Peptides and ProteinsNeoplasm ProteinsCells, CulturedCell SurvivalCyclin D1Genomic InstabilityAmino Acid SequenceTime FactorsPromoter Regions, GeneticPhenotypeCyclin B1FibroblastsCyclin-Dependent KinasesHistonesDNAOligonucleotide Array Sequence AnalysisProtein BindingS Phase Cell Cycle CheckpointsAntineoplastic AgentsCyclin-Dependent Kinase 2RNA, Small InterferingCell NucleusNocodazoleGene DeletionDNA, FungalGenes, p53Down-RegulationBlotting, WesternE2F Transcription FactorsTransfectionReverse Transcriptase Polymerase Chain ReactionTumor Markers, BiologicalGene Expression