ID 2.4.1.143 DE alpha-1,6-mannosyl-glycoprotein 2-beta-N-acetylglucosaminyltransferase. AN acetylglucosaminyltransferase II. AN alpha-1,6-mannosyl-glycoprotein beta-1,2-N-acetylglucosaminyltransferase. AN GlcNAc-T II. AN GnTII. AN N-acetylglucosaminyltransferase II. AN N-glycosyl-oligosaccharide-glycoprotein N-acetylglucosaminyltransferase AN II. AN uridine diphosphoacetylglucosamine-alpha-1,6-mannosylglycoprotein beta-1- AN 2-N-acetylglucosaminyltransferase. AN uridine diphosphoacetylglucosamine-alpha-D-mannoside beta1-2- AN acetylglucosaminyltransferase. AN uridine diphosphoacetylglucosamine-mannoside AN alpha1->6-acetylglucosaminyltransferase. CA N(4)-{beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-beta- CA D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-L-asparaginyl-[protein] CA + UDP-N-acetyl-alpha-D-glucosamine = H(+) + N(4)-{beta-D-GlcNAc-(1->2)- CA alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man- CA (1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-L-asparaginyl-[protein] + UDP. CC -!- The enzyme, found in plants and animals, participates in the CC processing of N-glycans in the Golgi apparatus. CC -!- Its activity initiates the synthesis of the second antenna of CC di-antennary complex N-glycans. CC -!- While the natural substrate (produced by EC 3.2.1.114) is described CC here, the minimal substrate recognized by the enzyme is alpha-D-Man- CC (1->6)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)]-beta-D-Man-R. CC -!- Formerly EC 2.4.1.51. DR Q9FT88, MGAT2_ARATH; Q10469, MGAT2_HUMAN; Q921V5, MGAT2_MOUSE; DR O19071, MGAT2_PIG ; Q09326, MGAT2_RAT ; //