Christianson Syndrome, also known as x-linked angelman-like syndrome, is related to angelman syndrome and complex partial epilepsy, and has symptoms including ataxia, ophthalmoplegia and sleep disturbances. An important gene associated with Christianson Syndrome is SLC9A6 (Solute Carrier Family 9 Member A6), and among its related pathways/superpathways are Transport of inorganic cations/anions and amino acids/oligopeptides and Fragile X syndrome. Affiliated tissues include eye and cerebellum, and related phenotypes are developmental regression and macrotia