Additional dystrophin fragment in Becker muscular dystrophy may result from proteolytic cleavage at deletion junctions.
Beggs, AH, Hoffman, and Kunkel. 1992. “Additional Dystrophin Fragment in Becker Muscular Dystrophy May Result from Proteolytic Cleavage at Deletion Junctions.”. Am J Med Genet 44 (3): 378-81.