Muscular Dystrophy-Dystroglycanopathy , Type a, 13, also known as muscular dystrophy-dystroglycanopathy , type a13, is related to congenital muscular dystrophy-dystroglycanopathy type a13 and walker-warburg syndrome, and has symptoms including muscle spasticity and seizures. An important gene associated with Muscular Dystrophy-Dystroglycanopathy , Type a, 13 is B4GAT1 (Beta-1,4-Glucuronyltransferase 1), and among its related pathways/superpathways are Glycosaminoglycan metabolism and O-linked glycosylation of mucins. Affiliated tissues include eye and brain, and related phenotypes are seizure and ventriculomegaly