Disclosed herein are compositions and methods for treatment of muscle dysfunction, including diabetes. In addition, the invention relates to therapeutic compositions comprising nucleotides and/or polypeptides of the invention in combination with a pharmaceutically acceptable carrier, wherein the composition facilitates the treatment of skeletal muscle disorders. Moreover, the invention relates to the treatment and/or prevention of pathological conditions associated with altered intracellular Ca2+ regulation and disrupted membrane structure that occurs when the expression levels of MG29 are reduced.
