Ataxia TelangiectasiaAtaxia Telangiectasia Mutated ProteinsTelangiectasisTelangiectasia, Hereditary HemorrhagicProtein-Serine-Threonine KinasesAtaxiaCell Cycle ProteinsTumor Suppressor ProteinsCerebellar AtaxiaDNA-Binding ProteinsDNA DamageRetinal TelangiectasisFriedreich AtaxiaProtein KinasesCheckpoint Kinase 2PhosphorylationSpinocerebellar AtaxiasDNA RepairPhosphatidylinositol 3-KinasesRadiation, IonizingMutationGamma RaysGait AtaxiaCell CycleRad52 DNA Repair and Recombination ProteinRadiation ToleranceSignal TransductionMAP Kinase Signaling SystemDNA Breaks, Double-StrandedNuclear ProteinsDNA-Activated Protein KinaseCDC2 Protein KinaseCell LineMolecular Sequence DataTumor Suppressor Protein p53Protein Kinase InhibitorsHistonesEpistaxisPyronesFibroblastsActivin Receptors, Type IIAmino Acid SequenceCalcium-Calmodulin-Dependent Protein KinasesArteriovenous MalformationsS PhaseCyclin-Dependent KinasesDNA ReplicationG2 PhaseEnzyme Activationsrc-Family KinasesIntracellular Signaling Peptides and ProteinsApoptosisDose-Response Relationship, RadiationCell Line, TumorCells, CulturedDNA Repair EnzymesHeLa CellsNijmegen Breakage SyndromeProtein BindingBase SequenceSerineUltraviolet RaysMAP Kinase Kinase KinasesStreptonigrinProtein-Tyrosine KinasesMitosisDNAJNK Mitogen-Activated Protein KinasesCell NucleusCREST SyndromeCell SurvivalMitogen-Activated Protein Kinase KinasesReplication Protein AProtein Kinase CBlotting, WesternMice, KnockoutSaccharomyces cerevisiae ProteinsPhenotypeProteinsSequence Homology, Amino AcidGenes, cdcImmunoblottingChromosome Breakagep38 Mitogen-Activated Protein KinasesThreonineX-RaysMorpholinesCyclic AMP-Dependent Protein KinasesCell Line, TransformedNucleic Acid Synthesis InhibitorsTransfectionMicrocephalyRNA InterferenceHeterozygoteMitogen-Activated Protein Kinase 1Recombination, GeneticCell DivisionChromosome AberrationsProtein Structure, TertiaryGenomic Instability