Patent 7125704 was granted and assigned to Mitsui Chemicals on October, 2006 by the United States Patent and Trademark Office.
A novel gluconate dehydratase derived from Achromobacter xylosoxidans and a gene encoding the gluconate dehydratase are provided. By reacting the gluconate dehydratase or a transformed cell containing the gene with an aldonic acid, the corresponding 2-keto-3-deoxyaldonic acid can be efficiently produced.