作者:Oliver Schwardt、Gan‐Pan Gao、Tamara Visekruna、Said Rabbani、Ernst Gassmann、Beat Ernst
DOI:10.1081/car-120030021
日期:2004.12.26
Recombinant rat alpha(2-->3)-sialyltransferase (ST3Gal III, EC 2.4.99.6) was expressed from baculovirus infected Sf 9 insect cells in preparative amounts. In order to elucidate substrate tolerances of ST3Gal III, the natural type I and type II substrates 21 and 22 as well as several non-natural sugars were investigated. The non-natural Gal-beta(1 --> 3)Gal-(N) (type III) disaccharides 11, 13, and 16 turned out to be surprisingly good substrates for ST3Gal III. All sialylations were run in preparative scale and kinetic parameters (V-max and K-m) were determined.