label: mannotetraose 2-alpha-N-acetylglucosaminyltransferase activity
label_lc: mannotetraose 2-alpha-n-acetylglucosaminyltransferase activity
description: "Catalysis of the reaction: 1,3-alpha-D-mannosyl-1,2-alpha-D-mannosyl-1,2-alpha-D-mannosyl-D-mannose + UDP-N-acetyl-D-glucosamine = 1,3-alpha-D-mannosyl-1,2-(N-acetyl-alpha-D-glucosaminyl-alpha-D-mannosyl)-1,2-alpha-D-mannosyl-D-mannose + UDP."