D inositol 3 phosphate glycosyltransferase

D-inositol-3-phosphate glycosyltransferase (EC 2.4.1.250, mycothiol glycosyltransferases, MshA) is an enzyme with systematic name UDP-N-acetyl-D-glucosamine:1D-myo-inositol 3-phosphate alpha-D-glycosyltransferase. This enzyme catalyses the following chemical reaction

UDP-N-acetyl-D-glucosamine + 1D-myo-inositol 3-phosphate ⇌ 1-O-(2-acetamido-2-deoxy-alpha-D-glucopyranosyl)-1D-myo-inositol 3-phosphate + UDP

This enzyme catalyses the first dedicated reaction in the biosynthesis of mycothiol.