2-DEOXY-SCYLLO-INOSOSE REDUCTASE

摘要

[Problem] The purpose of the present invention is to produce (-)-vibo-quercitol with high efficiency by a simple process. Particularly, it is intended to utilize an enzyme capable of converting 2-deoxy-scyllo-inosose to (-)-vibo-quercitol directly. [Solution] A 2-deoxy-scyllo-inosose reductase which is originated from a microorganism capable of utilizing (-)-vibo-quercitol and has the properties (a) to (c): (a) the enzyme has a catalytic activity of converting 2-deoxy-scyllo-inosose to (-)-vibo-quercitol; (b) the activity of the enzyme becomes maximum at a pH value of 7.0 to 9.0; and (c) a polypeptide moiety in the enzyme has a molecular mass of about 36 kDa as measured by SDS-polyacrylamide electrophoresis.