Tetrahedron Letters p. 7967 - 7970 (1997)
Update date:2022-08-04
Topics:
Li, Jun
Wang, Peng G.
β-Galactosidase activities from the recombinant thermophilic CLONEZYME(TM) glycosidase library were screened at 70°C for catalysis of a transgalactosylation from o-nitrophenyl-β-galactopyranoside to N-acetylglucosamine. Three thermophilic glycosidases (Gly001-06, -07 and -09) were found to produce predominantly the β(1-4)-linked isomer, Gal β(1-4)GlcNAc with up to 61% yield and less than 10% of the hydrolysis side reaction product. Thus, commercial recombinant thermophilic enzyme libraries constitute a novel class of biocatalysts for preparative organic synthesis.
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