BRCA1 ProteinGenes, BRCA1Checkpoint Kinase 2BRCA2 ProteinCell CycleGenes, BRCA2Cell Cycle ProteinsGenes, cdcDNA DamageProtein-Serine-Threonine KinasesProtein KinasesG2 PhaseMitosisCell Cycle CheckpointsAtaxia Telangiectasia Mutated ProteinsS PhaseMutationM Phase Cell Cycle CheckpointsDNA RepairHydroxyureaSpindle ApparatusG2 Phase Cell Cycle CheckpointsDNA-Binding ProteinsNuclear ProteinsDNA ReplicationSaccharomyces cerevisiae ProteinsPhosphorylationTumor Suppressor ProteinsSchizosaccharomycesTumor Suppressor Protein p53Schizosaccharomyces pombe Proteinscdc25 PhosphatasesG1 PhaseSaccharomyces cerevisiaeGamma RaysCDC2 Protein KinaseFungal ProteinsRadiation, IonizingPoint MutationIntracellular Signaling Peptides and ProteinsUltraviolet RaysMolecular Sequence DataCell Line, TumorGenomic InstabilityMutation, MissenseSignal TransductionS Phase Cell Cycle CheckpointsCyclin BApoptosisChromosomal InstabilityAtaxia TelangiectasiaCyclin-Dependent Kinase Inhibitor p21Cell LineMad2 ProteinsHeLa CellsCell DivisionGenes, FungalCyclinsBase SequenceNocodazoleDNA Breaks, Double-StrandedProtein Kinase InhibitorsKinetochoresRadiation ToleranceDNA, FungalGene DeletionProtein BindingGerm-Line MutationModels, BiologicalAmino Acid SequencePhosphatidylinositol 3-KinasesHistonesBreast NeoplasmsFibroblastsCyclin-Dependent KinasesRNA, Small InterferingMethyl MethanesulfonatePhenotypeG1 Phase Cell Cycle CheckpointsDNACyclin B1Cell NucleusAllelesNeoplasm ProteinsTumor Cells, CulturedRepressor ProteinsProtein Structure, TertiaryCell SurvivalTranscription FactorsEnzyme ActivationMAP Kinase Signaling SystemCell ProliferationTransfectionGenes, p53Cyclin-Dependent Kinase 2Carrier ProteinsBlotting, WesternFlow CytometryCdc20 ProteinsRad51 Recombinase