This paper describes the study of 3‘-phosphoadenosine-5‘-phosphosulfate (PAPS) regeneration from
3‘-phosphoadenosine-5‘-phosphate (PAP) for use in practical syntheses of carbohydrate sulfates
which are catalyzed by sulfotransferases. Among the regeneration systems, the one with
recombinant aryl sulfotransferase proved to be the most practical. This regeneration system was
coupled with a sulfotransferase-catalyzed reaction, using a recombinant Nod factor sulfotransferase,
for the synthesis of various oligosaccharide sulfates that were further glycosylated using glycosyltransferases