IUBMB Enzyme Nomenclature


Accepted name: UDP-N-acetyl-3-dehydro-α-D-glucosamine 3-aminotranferase

Reaction: UDP-3-acetamido-2-amino-2,3-dideoxy-α-D-glucopyranose + 2-oxoglutarate = UDP-N-acetyl-3-dehydro-α-D-glucosamine + L-glutamate

Other name(s): gnnB (gene name)

Systematic name: UDP-3-acetamido-2-amino-2,3-dideoxy-α-D-glucopyranose:2-oxoglutarate aminotransferase

Comments: This bacterial enzyme participates, together with EC, UDP-N-acetylglucosamine 3-dehydrogenase, in the synthesis of 2,3-diamino-2,3-dideoxy-D-glucopyranose, a component of lipid A in some species.

Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number:


1. Sweet, C.R., Ribeiro, A.A. and Raetz, C.R. Oxidation and transamination of the 3"-position of UDP-N-acetylglucosamine by enzymes from Acidithiobacillus ferrooxidans. Role in the formation of lipid a molecules with four amide-linked acyl chains. J. Biol. Chem. 279 (2004) 25400-25410. [PMID: 15044494]

[EC created 2021]

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