Cell CycleGenes, cdcCell Cycle ProteinsG2 PhaseDNA DamageCheckpoint Kinase 2Cell Cycle CheckpointsMitosisProtein-Serine-Threonine KinasesS PhaseG1 PhaseAtaxia Telangiectasia Mutated ProteinsProtein KinasesCyclinsG2 Phase Cell Cycle CheckpointsDNA RepairDNA-Binding ProteinsHydroxyureaDNA ReplicationNuclear ProteinsSpindle ApparatusTumor Suppressor Protein p53M Phase Cell Cycle Checkpointscdc25 PhosphatasesCyclin-Dependent Kinase Inhibitor p21Saccharomyces cerevisiae ProteinsCell DivisionCDC2 Protein KinaseFungal ProteinsMutationSaccharomyces cerevisiaeGamma RaysTumor Suppressor ProteinsSchizosaccharomycesMad2 ProteinsMolecular Sequence DataGenes, FungalSchizosaccharomyces pombe ProteinsPhosphorylationApoptosisCell ProliferationRetinoblastoma ProteinCyclin BCell Line, TumorAtaxia TelangiectasiaRadiation, IonizingChromosomal InstabilityCell LineBase SequenceUltraviolet RaysCyclin AG1 Phase Cell Cycle CheckpointsSignal TransductionCyclin EHeLa CellsRepressor ProteinsGene Expression RegulationRadiation ToleranceIntracellular Signaling Peptides and ProteinsModels, BiologicalCyclin B1Gene Expression ProfilingTranscription, GeneticTranscription FactorsGenomic InstabilityCyclin-Dependent KinasesHistonesCyclin D1S Phase Cell Cycle CheckpointsGene Expression Regulation, NeoplasticCyclin-Dependent Kinase 2Tumor Cells, CulturedRNA, MessengerAmino Acid SequenceDNADNA, FungalNocodazoleFlow CytometryCells, CulturedFibroblastsPromoter Regions, GeneticCyclin B2PhenotypeE2F Transcription FactorsProtein BindingOligonucleotide Array Sequence AnalysisDNA Breaks, Double-StrandedGene DeletionCyclin-Dependent Kinase Inhibitor p27Cell NucleusTime FactorsCDC28 Protein Kinase, S cerevisiaeCDC2-CDC28 KinasesMenstrual CycleAneuploidyCell SurvivalBRCA1 ProteinGenes, p53RNA, Small InterferingMimosine