glucose 1-phosphate 、
2-deoxy-2-(sulfoamino)-D-glucopyranose sodium salt 在
E
. coli K-12 Glc-1-P uridylyltransferase 、 E
. coli UDP-galactose-4-epimerase 、 Neisseria meningitidis β1-4-galactosyltransferase encoded by lgtB gene 、 Pasteurella multocida inorganic pyrophosphatase 、 uridine 5’-(hydrogen triphosphate) 、 magnesium chloride 作用下,
以74%的产率得到Galβ1-4GlcNS