Uridine diphospho-N-acetylglucosamine:polypeptide beta-N-acetylglucosaminyltransferase may refer to: * Protein O-GlcNAc transferase, an enzyme * Protein N-acetylglucosaminyltransferase, an enzyme This set index page lists enzyme articles associated with the same name. If an internal link led you here, you may wish to change the link to point directly to the intended article.