| 摘要 |
PURPOSE: A method for producing L-ribose by an enzyme reaction is provided to produce a large amount of L-ribose with high specificity. CONSTITUTION: A mutant mannose 6-phosphate isomerase of sequence number 2 is prepared by converting 17th amino acid residue of mannose 6-phosphate isomerase of sequence number 1, tryptophane(W) into glutamine(Q). A gene encoding the mannose 6-phosphate isomerase has a base of sequence number 3. A mutant mannose 6-phosphate isomerase of sequence number 4 is prepared by converting mannose 6-phosphate isomerase of sequence number 1, tryptopane(W) into glutamine(Q). A method for preparing ribose comprises a step of using L-ribulose as a substrate. The ribose is L-ribose. |
