发明授权
US5484716A Process for producing L-tryptophan by a Corynebacterium strain having
decreased phosphoenolpyruvate carboxylase activity
失效
通过具有降低的磷酸烯醇丙酮酸羧化酶活性的棒状杆菌菌株产生L-色氨酸的方法
- 专利标题： Process for producing L-tryptophan by a Corynebacterium strain having decreased phosphoenolpyruvate carboxylase activity
- 专利标题（中）： 通过具有降低的磷酸烯醇丙酮酸羧化酶活性的棒状杆菌菌株产生L-色氨酸的方法
-
申请号： US130995申请日： 1993-10-04
-
公开(公告)号： US5484716A公开(公告)日： 1996-01-16
- 发明人: Ryoichi Katsumata , Kuniki Kino
- 申请人： Ryoichi Katsumata , Kuniki Kino
- 申请人地址： JPX Tokyo
- 专利权人： Kyowa Hakko Kogyo Co., Ltd.
- 当前专利权人： Kyowa Hakko Kogyo Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX63-51358 19880304; JPX63-241688 19880927
- 主分类号： C12P13/22
- IPC分类号： C12P13/22 ; C12R1/13 ; C12R1/15
摘要：
The invention relates to a bacterial process for producing L-tryptophan, L-tyrosine or L-phenylalanine. The process utilizes a coryneform glutamic acid-producing bacterium being capable of producing L-tryptophan, L-tyrosine or L-phenylalanine and also decreased or lacked in phosphoenolpyruvate carboxylase activity. The mutant strain is then cultured in order to accumulate the amino acid in a medium and the amino acid is recovered therefrom.
公开/授权文献
- US4312706A Spacer grid assembly and locking mechanism 公开/授权日：1982-01-26
信息查询
