Accepted name: pseudaminic acid synthase
Reaction: phosphoenolpyruvate + 2,4-bis(acetylamino)-2,4,6-trideoxy-β-L-altropyranose + H2O = 5,7-bis(acetylamino)-3,5,7,9-tetradeoxy-L-glycero-α-L-manno-2-nonulopyranosonic acid + phosphate
Glossary: pseudaminic acid = 5,7-bis(acetylamino)-3,5,7,9-tetradeoxy-L-glycero-α-L-manno-2-nonulopyranosonic acid
Other name(s): PseI; NeuB3
Systematic name: phosphoenolpyruvate:2,4-bis(acetylamino)-2,4,6-trideoxy-β-L-altropyranose transferase (phosphate-hydrolysing, 2,7-acetylamino-transfering, 2-carboxy-2-oxoethyl-forming)
Comments: The enzyme requires a divalent metal ion, the highest activity values are observed in the presence of Mn2+ and Co2+ (10 mM).
1.  Chou, W.K., Dick, S., Wakarchuk, W.W. and Tanner, M.E. Identification and characterization of NeuB3 from Campylobacter jejuni as a pseudaminic acid synthase. J. Biol. Chem. 280 (2005) 35922–35928. [PMID: 16120604]
[EC created 2011]