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ENZYME

ENZYME entry: EC 2.4.1.155

PURL: https://purl.expasy.org/enzyme/EC/2.4.1.155
Accepted Name
alpha-1,6-mannosyl-glycoprotein 6-beta-N-acetylglucosaminyltransferase
Alternative Name(s)
alpha-1,3(6)-mannosylglycoprotein beta-1,6-N- acetylglucosaminyltransferase
alpha-mannoside beta-1,6-N-acetylglucosaminyltransferase
GlcNAc-T V
GnTV
N-acetylglucosaminyltransferase V
UDP-N-acetylglucosamine:alpha-mannoside-beta1,6 N-acetylglucosaminyltransferase
uridine diphosphoacetylglucosamine-alpha-mannoside beta1->6-acetylglucosaminyltransferase
Reaction catalysed
N(4)-{beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-L-asparaginyl-[protein] + UDP-N-acetyl-alpha-D-glucosamine = N(4)-{beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-L-asparaginyl-[protein] + UDP + H(+)
Comment(s)
  • The enzyme, found in vertebrates, participates in the processing of N-glycans in the Golgi apparatus.
  • It catalyzes the addition of N-acetylglucosamine in beta 1-6 linkage to the alpha-linked mannose of biantennary N-linked oligosaccharides, and thus enables the synthesis of tri- and tetra-antennary complexes.
Cross-references
BRENDA2.4.1.155
EC2PDB2.4.1.155
ExplorEnz2.4.1.155
KEGG Ligand Database for Enzyme Nomenclature2.4.1.155
IUBMB Enzyme Nomenclature2.4.1.155
MEDLINEFind literature relating to 2.4.1.155
MetaCyc2.4.1.155
Rhea expert-curated reactions2.4.1.155
UniProtKB/Swiss-Prot
Q9NDH7, GLY2_CAEELP97259, MGT5A_CRIGRQ09328, MGT5A_HUMAN
Q8R4G6, MGT5A_MOUSEQ08834, MGT5A_RATQ3V5L5, MGT5B_HUMAN
Q765H6, MGT5B_MOUSE

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