Mutations in dystrophin are associated with a spectrum of clinical phenotypes, grouped as “dystrophinopathies” including Duchenne muscular dystrophy (DMD), Becker muscular dystrophy (BMD), and X-linked dilated cardiomyopathy (XLDCM) [13, 14]. The gene discussed is DMD; the disease is neuromuscular disease caused by qualitative or quantitative defects of dystrophin.