申请人:Kyowa Hakko Kogyo Co., Ltd.
公开号:US04183786A1
公开(公告)日:1980-01-15
A process for converting glycine to L-serine is effected by the use of an aqueous medium containing glycine and microbial cells of a mutant belonging to the genus Nocardia. The mutant is capable of converting glycine to L-serine and has no or lowered ability to decompose L-serine and/or a resistance to at least one metabolic antagonist selected from those of glycine, serine, methionine, glutamine, histidine, leucine, isoleucine, valine, purine, pyrimidine or folic acid. The L-serine is accumulated in the aqueous medium and is recovered therefrom.
将甘氨酸转化为L-丝氨酸的过程是通过使用含有甘氨酸和属于诺卡氏菌属的突变菌微生物细胞的水介质实现的。该突变菌能够将甘氨酸转化为L-丝氨酸,并且具有不分解L-丝氨酸和/或对甘氨酸、丝氨酸、甲硫氨酸、谷氨酰胺、组氨酸、亮氨酸、异亮氨酸、缬氨酸、嘌呤、嘧啶或叶酸等代谢拮抗物中至少一种具有抗性的能力。L-丝氨酸在水介质中积累并从中回收。