stability to the dystroglycan complex a structural component within muscle tissue . Duchenne muscular dystrophy is caused by a mutation of the dystrophin gene at locus Xp21. Citation: 1) http://www.forschungsportal.ch/unibe/abstracts/A_62193673.html 2) Louise V. B. Anderson; Katharine M. D. Bushby (2001). of DMD Muscular Dystrophy: Methods and Protocols (Methods in Molecular Medicine)