Cell CycleG2 Phase Cell Cycle CheckpointsS Phase Cell Cycle CheckpointsG1 Phase Cell Cycle CheckpointsCell Cycle ProteinsM Phase Cell Cycle CheckpointsG2 PhaseCell Cycle CheckpointsS PhaseG1 PhaseDNA DamageCheckpoint Kinase 2Cell Line, TumorMitosisGenes, cdcProtein-Serine-Threonine KinasesAtaxia Telangiectasia Mutated ProteinsTumor Suppressor Protein p53Cell DivisionApoptosisCyclin-Dependent Kinase Inhibitor p21CyclinsPhosphorylationProtein KinasesTumor Suppressor ProteinsTumor Cells, Culturedcdc25 PhosphatasesCell ProliferationDNA-Binding ProteinsDNA RepairCDC2 Protein KinaseCell LineCyclin B1Flow CytometryNuclear ProteinsDNA ReplicationSignal TransductionMenstrual CycleRetinoblastoma ProteinMutationGamma RaysCyclin BHydroxyureaG0 PhaseRadiation, IonizingCell SurvivalHeLa CellsCyclin-Dependent Kinase 2Time FactorsCyclin-Dependent Kinase Inhibitor p27Ataxia TelangiectasiaRadiation ToleranceSpindle ApparatusCyclin D1Models, BiologicalMolecular Sequence DataCells, CulturedCyclin EFibroblastsAntineoplastic AgentsBlotting, WesternCell NucleusRNA, Small InterferingDNASaccharomyces cerevisiae ProteinsCyclin-Dependent KinasesUltraviolet RaysGenomic InstabilitySaccharomyces cerevisiaeRNA, MessengerCyclin-Dependent Kinase 4Gene Expression Regulation, NeoplasticSchizosaccharomycesNocodazoleNeoplasmsBase SequenceHistonesAmino Acid SequenceInterphaseTranscription FactorsSchizosaccharomyces pombe ProteinsDose-Response Relationship, DrugCyclin AGenes, p53Antineoplastic Agents, PhytogenicTransfectionCDC2-CDC28 KinasesFungal ProteinsGene Expression RegulationChromosomal InstabilityDNA Breaks, Double-StrandedNeoplasm ProteinsMimosineProtein BindingPhenotypeBRCA1 ProteinReverse Transcriptase Polymerase Chain ReactionImmunohistochemistryTranscription, GeneticTumor Markers, Biological