IUBMB Enzyme Nomenclature


Accepted name: UDP-N-acetylglucosamine 6-dehydrogenase

Reaction: UDP-N-acetyl-α-D-glucosamine + 2 NAD+ + H2O = UDP-2-acetamido-2-deoxy-α-D-glucuronate + 2 NADH + 2 H+

For diagram of reaction click here.

Other name(s): uridine diphosphoacetylglucosamine dehydrogenase; UDP-acetylglucosamine dehydrogenase; UDP-2-acetamido-2-deoxy-D-glucose:NAD oxidoreductase; UDP-GlcNAc dehydrogenase; WbpA; WbpO

Systematic name: UDP-N-acetyl-α-D-glucosamine:NAD+ 6-oxidoreductase

Comments: This enzyme participates in the biosynthetic pathway for UDP-α-D-ManNAc3NAcA (UDP-2,3-diacetamido-2,3-dideoxy-α-D-mannuronic acid), an important precursor of B-band lipopolysaccharide.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 9054-83-5


1. Fan, D.-F., John, C.E., Zalitis, J. and Feingold, D.S. UDPacetylglucosamine dehydrogenase from Achromobacter georgiopolitanum. Arch. Biochem. Biophys. 135 (1969) 45-49. [PMID: 4312076]

2. Miller, W.L., Wenzel, C.Q., Daniels, C., Larocque, S., Brisson, J.R. and Lam, J.S. Biochemical characterization of WbpA, a UDP-N-acetyl-D-glucosamine 6-dehydrogenase involved in O-antigen biosynthesis in Pseudomonas aeruginosa PAO1. J. Biol. Chem. 279 (2004) 37551-37558. [PMID: 15226302]

[EC created 1972, modified 2012]

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