Muscular Dystrophy-Dystroglycanopathy , Type B, 4, also known as mddgb4, is related to congenital muscular dystrophy-dystroglycanopathy a7 and congenital myopathy 10a, severe variant. An important gene associated with Muscular Dystrophy-Dystroglycanopathy , Type B, 4 is FKTN (Fukutin), and among its related pathways/superpathways are O-linked glycosylation of mucins and Defective DPM3 causes DPM3-CDG. Affiliated tissues include brain, and related phenotypes are elevated circulating creatine kinase concentration and motor delay