has participant has participant hydron UDP-N-acetyl-alpha-D-glucosamine(2-) UDP(3-) N(4)-{beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-Asn residue N(4)-{beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAcl-(1->4)-beta-D-GlcNAc}-Asn residue acetylglucosaminyltransferase activity alpha-1,6-mannosylglycoprotein 2-beta-N-acetylglucosaminyltransferase activity catalytic activity, acting on a glycoprotein