Ataxia-Telangiectasia, also known as ataxia telangiectasia, is related to nijmegen breakage syndrome and telangiectasis, and has symptoms including back pain, cerebellar ataxia and headache. An important gene associated with Ataxia-Telangiectasia is ATM (ATM Serine/Threonine Kinase), and among its related pathways/superpathways are Gene expression (Transcription) and Infectious disease. The drugs Clonidine and Polyestradiol phosphate have been mentioned in the context of this disorder. Affiliated tissues include skin and eye, and related phenotypes are abnormality of eye movement and nystagmus