Chloride channel protein 2 is a protein that in humans is encoded by the CLCN2 gene. Mutations of this gene have been found to cause leukoencephalopathy and Idiopathic generalised epilepsy (OMIM: 600699), although the latter claim has been disputed. CLCN2 contains a transmembrane region that is involved in chloride ion transport as well two intracellular copies of the CBS domain. From Wikipedia
