发明名称 |
L-CYSTEINE PRODUCING BACTERIA AND METHOD FOR PRODUCING L-CYSTEINE |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a new method for producing L-cysteine by clarifying an enzyme supporting cysteine desulfhydrase activity of a bacterial strain of genus Escherichia and its gene and using the gene for breeding of the L-cysteine-producing bacterial strain. Ž<P>SOLUTION: The MalY regulatory protein (MalY) gene of an Escherichia strain is modified to give a strain having L-cysteine productivity and lowered or eliminated cysteine desulfhydrase activity. The modified strain is cultured in a medium to form and accumulate L-cysteine in the medium and the L-cysteine is separated from the medium, thus L-cysteine is produced. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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申请公布号 |
JP2010099086(A) |
申请公布日期 |
2010.05.06 |
申请号 |
JP20100008022 |
申请日期 |
2010.01.18 |
申请人 |
AJINOMOTO CO INC |
发明人 |
TAKAGI HIROSHI;NAKAMORI SHIGERU;WADA MASARU;MORI HIROSADA |
分类号 |
C12N1/21;C12N15/09;C12P13/12 |
主分类号 |
C12N1/21 |
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