发明授权
US5595906A Corynebacterium strain for producing L-tryptophan decreased in
phosphoenolpyruvate carboxylase activity
失效
用于产生L-色氨酸的棒状杆菌菌株磷酸烯醇丙酮酸羧化酶活性降低
- 专利标题： Corynebacterium strain for producing L-tryptophan decreased in phosphoenolpyruvate carboxylase activity
- 专利标题（中）： 用于产生L-色氨酸的棒状杆菌菌株磷酸烯醇丙酮酸羧化酶活性降低
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申请号： US429472申请日： 1995-04-27
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公开(公告)号： US5595906A公开(公告)日： 1997-01-21
- 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 ; C12N1/20
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.
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