Jl. Viladot et al., EXPEDITIOUS SYNTHESIS OF A NEW HEXASACCHARIDE USING TRANSGLYCOSYLATION REACTION CATALYZED BY BACILLUS (1-]3),(1-]4)-BETA-D-GLUCAN 4-GLUCANOHYDROLASE, Carbohydrate research, 311(1-2), 1998, pp. 95-99
Enzymatic hydrolysis of barley (1-->3),(1-->4)-beta-D-glucan using a r
ecombinant (1-->3),(1-->4)-beta-glucanase from Bacillus licheniformis
gives Glc beta 4Glc beta 3Glc isolated after acetylation in 49% yield.
Conventional treatment produced the corresponding beta-fluoride which
was carefully de-O-acetylated. A transglycosylation reaction with thi
s substrate, catalyzed by the title enzyme, gave Glc beta 4Glc beta 3G
lc beta 4Glc beta 4Glc beta 3Glc in 20% yield. (C) 1998 Elsevier Scien
ce Ltd. All rights reserved.