Acceptor Specificity of Cyclodextrin Glycosyltransferase fromBacillus stearothermophilusand Synthesis of α-D-GlucosylO-β-D-galactosyl-(1→4)-β-D-glucoside
Acceptor Specificity of Cyclodextrin Glycosyltransferase from<i>Bacillus stearothermophilus</i>and Synthesis of α-<scp>D</scp>-Glucosyl<i>O</i>-β-<scp>D</scp>-galactosyl-(1→4)-β-<scp>D</scp>-glucoside
Bacillus stearothermophilus CGTase had a wider acceptor specificity than Bacillus macerans CGTase did and produced large amounts of transfer products of various acceptors such as D-galactose, D-mannose, D-fructose, D- and L-arabinose, d- and L-fucose, L-rhamnose, D-glucosamine, and lactose, which were inefficient acceptors for B. macerans CGTase. The main component of the smallest transfer products of lactose was assumed to be α-D-glucosyl O-β-D-galactosyl-(l→4)-β-D-glucoside.