| abstract |
(57) Abstract: A protein according to the following (a) or (b): (A) a protein comprising the amino acid sequence represented by SEQ ID NO: 1; (B) an amino acid sequence represented by SEQ ID NO: 1 including an amino acid sequence in which one or more amino acid residues have been deleted, substituted, added or inserted, and GDP-4-keto-6-deoxy-D-mannose A protein having -3,5-epimerase-4-reductase activity. [Effect] According to the present invention, GDP-L- which is essential for adding fucose having a very important function in a sugar chain. Fucose can be efficiently produced in large quantities. |