Enhanced transglucosylation/hydrolysis ratio of mutants of Pyrococcus furiosus beta-glucosidase: effects of donor concentration, water content, and temperature on activity and selectivity in hexanol.

Abstract excerpt

The transglucosylation reaction catalyzed by wild-type beta-glucosidase CelB from hyperthermophilic Pyrococcus furiosus and active site mutants (M424K, F426Y, M424K/F426Y) was studied. The conversion of pentyl-beta-glucoside to hexyl-beta-glucoside in hexanol was used as a model transglucosylation reaction. Hydrolysis to glucose was a side reaction. The selectivity towards transglucosylation was quantified by the...

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