D-SORBITOL DEHYDROGENASE, GENES THEREOF AND USE OF THE SAME

摘要

Three subunits constituting D-sorbitol dehydrogenase (SLDH); genes encoding them; a process for producing SLDH by culturing cells transformed by expression vectors containing promoter genes appropriate for expressing the above genes and the above-mentioned genes; and a process for producing L-sorbose or 2-keto-L-gulonic acid (2KLGA) by using the above culture. This process permits 2KLGA as a precursor of L-ascorbic acid to be easily produced in a large amount.