IUBMB Enzyme Nomenclature

EC 2.4.1.182

Accepted name: lipid-A-disaccharide synthase

Reaction: UDP-2,3-bis(3-hydroxytetradecanoyl)glucosamine + 2,3-bis(3-hydroxytetradecanoyl)-β-D-glucosaminyl 1-phosphate = UDP + 2,3-bis(3-hydroxytetradecanoyl)-D-glucosaminyl-(1→6)-β-D-2,3-bis(3-hydroxytetradecanoyl)-β-D-glucosaminyl 1-phosphate

Systematic name: UDP-2,3-bis(3-hydroxytetradecanoyl)glucosamine:2,3-bis-(3-hydroxytetradecanoyl)-β-D-glucosaminyl-1-phosphate 2,3-bis(3-hydroxytetradecanoyl)-glucosaminyltransferase

Comments: Involved with EC 2.3.1.129 (acyl-[acyl-carrier-protein]—UDP-N-acetylglucosamine O-acyltransferase) and EC 2.7.1.130 (tetraacyldisaccharide 4'-kinase) in the biosynthesis of the phosphorylated glycolipid, Lipid A, in the outer membrane of Escherichia coli.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 105843-81-0

References:

1. Crowell, D.N., Reznikoff, W.S. and Raetz, C.R.H. Nucleotide sequence of the Escherichia coli gene for lipid A disaccharide synthase. J. Bacteriol. 169 (1987) 5727-5734. [PMID: 2824445]

2. Ray, B.L., Painter, G. and Raetz, C.R.H. The biosynthesis of gram-negative endotoxin. Formation of lipid A disaccharides from monosaccharide precursors in extracts of Escherichia coli. J. Biol. Chem. 259 (1984) 4852-4859.

[EC 2.4.1.182 created 1990]


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