2.6.1.92	medicine	the enzyme is involved biosynthesis of 5,7-bis(acetylamino)-3,5,7,9-tetradeoxy-L-glycero-alpha-L-manno-2-nonulopyranosonic acid (pseudaminic acid). Helicobacter pylori flagellin is heavily glycosylated with pseudaminic acid. The glycosylation process is essential for assembly of functional flagellar filaments and consequent bacterial motility. Because motility is a key virulence factor for this and other important pathogens, the pseudaminic acid biosynthetic pathway offers potential for novel therapeutic targets	715485