Cell CycleCell Cycle ProteinsCell DivisionGenes, cdcMitosisDNA DamageG2 PhaseCheckpoint Kinase 2Protein-Serine-Threonine KinasesCell Cycle CheckpointsS PhaseProtein KinasesDNA ReplicationSpindle Apparatuscdc25 PhosphatasesAtaxia Telangiectasia Mutated ProteinsG1 PhaseMutationHydroxyureaSchizosaccharomycesSaccharomyces cerevisiaeDNA-Binding ProteinsNuclear ProteinsCDC2 Protein KinaseDNA RepairSaccharomyces cerevisiae ProteinsFungal ProteinsG2 Phase Cell Cycle CheckpointsM Phase Cell Cycle CheckpointsSchizosaccharomyces pombe ProteinsCyclinsMolecular Sequence DataPhosphorylationTumor Suppressor Protein p53Genes, FungalTumor Suppressor ProteinsGamma RaysCyclin BMad2 ProteinsHeimlich ManeuverCyclin B1Base SequenceApoptosisChromosomal InstabilityCyclin-Dependent KinasesHeLa CellsAtaxia TelangiectasiaCell LineCyclin-Dependent Kinase Inhibitor p21Radiation, IonizingSignal TransductionUltraviolet RaysDNA, FungalCell NucleusAmino Acid SequenceCell Line, TumorRetinoblastoma ProteinCyclin-Dependent Kinase 2PhenotypeIntracellular Signaling Peptides and ProteinsFlow CytometryFibroblastsCell ProliferationDNARadiation ToleranceGenomic InstabilityCentrosomeCyclin AG1 Phase Cell Cycle CheckpointsProtein BindingCdc20 ProteinsHistonesInterphaseTime FactorsUbiquitin-Protein Ligase ComplexesCells, CulturedCell Nucleus DivisionAnaphase-Promoting Complex-CyclosomeNocodazoleCaulobacter crescentusChromosome SegregationGene DeletionRepressor ProteinsCDC2-CDC28 KinasesTumor Cells, CulturedS Phase Cell Cycle CheckpointsAllelesAsymmetric Cell DivisionOncogenesTranscription, GeneticRNA, Small InterferingAneuploidyChromatinGene Expression RegulationDNA Breaks, Double-StrandedTranscription FactorsCarrier ProteinsSequence Homology, Amino AcidChromosomesRNA Interference