Cell CycleCell Cycle ProteinsCell Cycle CheckpointsG2 PhaseCheckpoint Kinase 2DNA DamageGenes, cdcMitosisS PhaseAtaxia Telangiectasia Mutated ProteinsProtein-Serine-Threonine KinasesG1 PhaseG2 Phase Cell Cycle CheckpointsTumor Suppressor Protein p53DNA RepairProtein KinasesTumor Suppressor ProteinsDNA-Binding ProteinsCyclinsCyclin-Dependent Kinase Inhibitor p21DNA ReplicationNuclear ProteinsM Phase Cell Cycle Checkpointscdc25 PhosphatasesCell DivisionPhosphorylationCDC2 Protein KinaseGamma RaysNotochordHydroxyureaCyclin BAtaxia TelangiectasiaApoptosisRadiation, IonizingSpindle ApparatusG1 Phase Cell Cycle CheckpointsSignal TransductionMutationRetinoblastoma ProteinRadiation ToleranceCell Line, TumorCell LineCyclin B1Saccharomyces cerevisiae ProteinsGenomic InstabilitySchizosaccharomycesS Phase Cell Cycle CheckpointsNeural TubeHeLa CellsSaccharomyces cerevisiaeEmbryonic InductionCyclin-Dependent Kinase 2Cell ProliferationNocodazoleFlow CytometryMolecular Sequence DataUltraviolet RaysSchizosaccharomyces pombe ProteinsFibroblastsModels, BiologicalCyclin ETranscription FactorsDNA Breaks, Double-StrandedCyclin-Dependent Kinase Inhibitor p27Cell NucleusTumor Cells, CulturedFungal ProteinsHistonesHedgehog ProteinsChromosomal InstabilityDNACDC2-CDC28 KinasesGrowth PlateCyclin AMenstrual CycleCells, CulturedCell SurvivalCell DifferentiationBRCA1 ProteinCyclin D1Genes, p53Amino Acid SequenceMimosineGene Expression Regulation, DevelopmentalHepatocyte Nuclear Factor 3-betaBone PlatesTime FactorsInterphaseRNA, Small InterferingProtein BindingProteinsKinetochoresIntracellular Signaling Peptides and ProteinsCentral Nervous SystemCyclin-Dependent Kinase 4Base SequenceNervous SystemAphidicolinCyclin-Dependent KinasesCentrosome