IUBMB Enzyme Nomenclature


Accepted name: α-1,6-mannosyl-glycoprotein 4-β-N-acetylglucosaminyltransferase

Reaction: UDP-N-acetyl-D-glucosamine + 2,6-bis(N-acetyl-β-D-glucosaminyl)-α-D-mannosyl-R = UDP + 2,4,6-tris(N-acetyl-β-D-glucosaminyl)-α-D-mannosyl-R

For diagram click here.

Other name(s): N-acetylglucosaminyltransferase VI; N-glycosyl-oligosaccharide-glycoprotein N-acetylglucosaminyltransferase VI; uridine diphosphoacetylglucosamine-glycopeptide β-1→4-acetylglucosaminyltransferase VI; mannosyl-glycoprotein β-1,4-N-acetylglucosaminyltransferase

Systematic name: UDP-N-acetyl-D-glucosamine:2,6-bis(N-acetyl-β-D-glucosaminyl)-α-D-mannosyl-glycoprotein 4-β-N-acetyl-D-glucosaminyltransferase

Comments: R represents the remainder of the N-linked oligosaccharide in the glycoprotein acceptor (click here for diagram).

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 119699-68-2


1. Brockhausen, I., Hull, E., Hindsgaul, O., Schachter, H., Shah, R.N., Michnick, S.W. and Carver, J.P. Control of glycoprotein synthesis. Detection and characterization of a novel branching enzyme from hen oviduct, UDP-N-acetylglucosamine:GlcNAc β1-6 (GlcNAc β1-2)Man α-R (GlcNAc to Man) β-4-N-acetylglucosaminyltransferase VI. J. Biol. Chem. 264 (1989) 11211-11221. [PMID: 2525556]

2. Taguchi, T., Ogawa, T., Inoue, S., Inoue, Y., Sakamoto, Y., Korekane, H., and Taniguchi, N. Purification and characterization of UDP-GlcNAc:GlcNAcβ1-6(GlcNAcβ1-2)Manα1-R [GlcNAc to Man]-β1,4-N-acetylglucosaminyltransferase VI from hen oviduct. J. Biol. Chem. 275 (2000) 32598-32602. [PMID: 10903319]

[EC created 1992, modified 2001]

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