Muscular Dystrophy, Limb-Girdle, Autosomal Recessive 21, also known as lgmd2z, is related to autosomal recessive limb-girdle muscular dystrophy type 2z and autosomal recessive limb-girdle muscular dystrophy. An important gene associated with Muscular Dystrophy, Limb-Girdle, Autosomal Recessive 21 is POGLUT1 (Protein O-Glucosyltransferase 1). Affiliated tissues include skeletal muscle, and related phenotypes are limb-girdle muscular dystrophy and scapular winging