TelluriumAtaxia TelangiectasiaAtaxia Telangiectasia Mutated ProteinsTelangiectasisAtaxiaCerebellar AtaxiaTelangiectasia, Hereditary HemorrhagicFriedreich AtaxiaTumor Suppressor ProteinsCell Cycle ProteinsSpinocerebellar AtaxiasSyndromeProtein-Serine-Threonine KinasesRetinal TelangiectasisGait AtaxiaDNA-Binding ProteinsDNA DamageRadiation, IonizingCheckpoint Kinase 2DNA RepairGamma RaysRadiation ToleranceDNA Breaks, Double-StrandedTumor Suppressor Protein p53DNA-Activated Protein KinasePhosphorylationMutationEpistaxisPyronesArteriovenous MalformationsActivin Receptors, Type IINuclear ProteinsHistonesFibroblastsNijmegen Breakage SyndromeIron-Binding ProteinsDose-Response Relationship, RadiationCell CycleCREST SyndromeCell LineStreptonigrinMicrocephalySignal TransductionProtein KinasesHeterozygoteDNA ReplicationDown SyndromeG2 PhaseChromosome BreakageMetabolic Syndrome XPhenotypeChromosome AberrationsCerebellumPedigreeMachado-Joseph DiseaseApoptosisUltraviolet RaysX-RaysInfrared RaysCells, CulturedCell Line, TumorNucleic Acid Synthesis InhibitorsGenes, cdcMutation, MissenseReplication Protein ATrinucleotide Repeat ExpansionDNA Repair EnzymesGenomic InstabilityCell Line, TransformedCell SurvivalS PhaseLymphocytesHomozygoteMice, KnockoutChromosome DisordersImmunologic Deficiency SyndromesDNAG2 Phase Cell Cycle CheckpointsTrinucleotide RepeatsMolecular Sequence DataTelomereAphidicolinProteinsTelomeric Repeat Binding Protein 2Chromosomes, Human, Pair 11Abnormalities, MultipleHeLa CellsDNA Mutational AnalysisHydroxyureaCell Cycle CheckpointsNephrotic SyndromeMorpholinesBase SequenceAlkylating AgentsComet AssayCaffeineBleomycinCardiac Output, HighActivin Receptors, Type ISerine