Cell CycleCell Cycle ProteinsMitosisCell Cycle CheckpointsCDC2 Protein KinaseS PhaseG2 PhaseCheckpoint Kinase 2DNA DamageProtein-Serine-Threonine Kinasescdc25 PhosphatasesCyclin BGenes, cdcEmbryo, NonmammalianAtaxia Telangiectasia Mutated ProteinsCyclinsG1 PhaseG2 Phase Cell Cycle CheckpointsXenopus ProteinsXenopusTumor Suppressor Protein p53Cyclin-Dependent Kinase 2Protein KinasesDNA RepairOvumDNA-Binding ProteinsTumor Suppressor ProteinsCell DivisionNuclear ProteinsDNA ReplicationCyclin-Dependent Kinase Inhibitor p21OocytesFertilizationMolecular Sequence DataCyclin-Dependent KinasesPhosphorylationM Phase Cell Cycle CheckpointsNotochordXenopus laevisApoptosisGamma RaysHydroxyureaSpindle ApparatusAtaxia TelangiectasiaRadiation, IonizingSignal TransductionMutationG1 Phase Cell Cycle CheckpointsCell LineCell Line, TumorCyclin B1Retinoblastoma ProteinRadiation ToleranceEmbryonic InductionSaccharomyces cerevisiae ProteinsHeLa CellsGenomic InstabilitySchizosaccharomycesCell ProliferationS Phase Cell Cycle CheckpointsNeural TubeGene Expression Regulation, DevelopmentalNocodazoleFibroblastsSaccharomyces cerevisiaeTranscription FactorsModels, BiologicalCell DifferentiationFlow CytometryCell NucleusUltraviolet RaysSchizosaccharomyces pombe ProteinsCells, CulturedDNAHistonesTumor Cells, CulturedCyclin ECyclin ADNA Breaks, Double-StrandedCyclin-Dependent Kinase Inhibitor p27Amino Acid SequenceCell SurvivalFungal ProteinsHedgehog ProteinsChromosomal InstabilityChick EmbryoCDC2-CDC28 KinasesGrowth PlateTime FactorsMenstrual CycleBase SequenceBRCA1 ProteinCyclin D1ProteinsEmbryo, MammalianGenes, p53InterphaseProtein BindingRNA, Small InterferingMimosine