UDP-glucose:glycoprotein glucosyltransferase (UGGT) is a 170 kDa lumenal endoplasmic reticulum (ER) resident protein that catalyzes monoglucosylation of high mannose oligosaccharides. UGGT catalyzes the transfer of glucose from UDP-glucose to Man7-9GlcNAc2-moiety of unfolded glycoproteins in a Ca2+ dependent reaction. UGGT binds unfolded glycoprotein via two elements on its substrate: a N-acetylglucosamine unit on the oligosaccharide and hydrophobic amino acids that are exposed in the denatured conformation. It is postulated that UGGT serves as a sensor that is able to distinguish between folded and denatured protein in the ER.
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Protein Aliases: RUGT; UDP--Glc:glycoprotein glucosyltransferase; UDP-glucose ceramide glucosyltransferase-like 1; UDP-glucose glycoprotein: glucosyltransferase UGGT; UDP-glucose:glycoprotein glucosyltransferase; UDP-glucose:glycoprotein glucosyltransferase 1; UGT1
Gene Aliases: 0910001L17Rik; A930007H10Rik; AA589501; AI414429; AI448372; C820010P03Rik; GT; HUGT1; rUGT1; UGCGL1; UGGT; UGGT1; UGT1; UGTR