EC 5.1.3.26     
Accepted name: N-acetyl-α-D-glucosaminyl-diphospho-ditrans,octacis-undecaprenol 4-epimerase
Reaction: N-acetyl-α-D-glucosaminyl-diphospho-ditrans,octacis-undecaprenol = N-acetyl-α-D-galactosaminyl-diphospho-ditrans,octacis-undecaprenol
Other name(s): GlcNAc-P-P-Und epimerase; GlcNAc-P-P-Und 4-epimerase; gne (gene name)
Systematic name: N-acetyl-α-D-glucosaminyl-diphospho-ditrans,octacis-undecaprenol 4-epimerase
Comments: The enzyme is involved in biosynthesis of the repeating tetrasaccharide unit of the O-antigen produced by some Gram-negative bacteria.
References:
1.  Rush, J.S., Alaimo, C., Robbiani, R., Wacker, M. and Waechter, C.J. A novel epimerase that converts GlcNAc-P-P-undecaprenol to GalNAc-P-P-undecaprenol in Escherichia coli O157. J. Biol. Chem. 285 (2010) 1671–1680. [PMID: 19923219]
[EC 5.1.3.26 created 2013]