NOVEL KETOSE 3-EPIMERASE
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United States of America
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Dec 23, 2021
app pub date -
Nov 21, 2019
filing date -
Nov 21, 2019
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To provide a ketose 3-epimerase that can be used in the food industry and is highly safe, highly active, and heat resistant, a microorganism that produces this enzyme, and a method of producing a ketose. The present invention provides a ketose 3-epimerase that can be obtained from a microorganism belonging to the genus Arthrobacter, has a molecular mass of about 36 kDa as measured by SDS-PAGE, and has the following substrate specificities (A) and (B): (A) having an activity of epimerizing position 3 of a D- or L-ketose and preparing a D- or L-ketose corresponding thereto, and (B) having the highest epimerization activity on position 3 of D-allulose, among D- or L-ketohexoses.
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