Reaction on d-glucal by an inverting phosphorylase to synthesize derivatives of 2-deoxy-β-d-arabino-hexopyranosyl-(1→4)-d-glucose (2II-deoxycellobiose)
摘要:
Four derivatives of 2(11)-deoxycellobiose were synthesized from D-glucal and acceptor sugars (D-glucose, D-xylose, D-mannose, and 2-deoxy-D-arabino-hexose) using a cellobiose phosphorylase from Cellvibrio gilvus. The enzyme was found to be an effective catalyst to synthesize the beta-(1 -> 4) linkage of 2-dcoxy-D-arabhio-hexopyranoside. The acceptor specificity for the D-glucal reaction was identical to that for the alpha-D-glucose 1-phosphate reaction, but the activity Of (D)-glucal was approximately 500 times less than that Of alpha-D-glucose 1-phosphate, using 10 mM substrates. (c) 2006 Elsevier Ltd. All rights reserved.
Reaction on d-glucal by an inverting phosphorylase to synthesize derivatives of 2-deoxy-β-d-arabino-hexopyranosyl-(1→4)-d-glucose (2II-deoxycellobiose)
Four derivatives of 2(11)-deoxycellobiose were synthesized from D-glucal and acceptor sugars (D-glucose, D-xylose, D-mannose, and 2-deoxy-D-arabino-hexose) using a cellobiose phosphorylase from Cellvibrio gilvus. The enzyme was found to be an effective catalyst to synthesize the beta-(1 -> 4) linkage of 2-dcoxy-D-arabhio-hexopyranoside. The acceptor specificity for the D-glucal reaction was identical to that for the alpha-D-glucose 1-phosphate reaction, but the activity Of (D)-glucal was approximately 500 times less than that Of alpha-D-glucose 1-phosphate, using 10 mM substrates. (c) 2006 Elsevier Ltd. All rights reserved.