Involvement of the yciW gene in L-cysteine and L-methionine metabolism in Escherichia coli

被引:26
|
作者
Kawano, Yusuke [1 ]
Ohtsu, Iwao [1 ]
Tamakoshi, Ai [1 ]
Shiroyama, Maeka [1 ]
Tsuruoka, Ai [1 ]
Saiki, Kyohei [1 ]
Takumi, Kazuhiro [2 ]
Nonaka, Gen [2 ]
Nakanishi, Tsuyoshi [3 ]
Hishiki, Takako [4 ]
Suematsu, Makoto [4 ]
Takagi, Hiroshi [1 ]
机构
[1] Nara Inst Sci & Technol, Grad Sch Biol Sci, Nara 6300192, Japan
[2] Ajinomoto Co Inc, Res Inst Biosci Prod & Fine Chem, Kawasaki, Kanagawa 2108681, Japan
[3] Shimadzu Co, MS Business Unit, Nakagyo Ku, Kyoto 6048511, Japan
[4] Keio Univ, Sch Med, Dept Biochem, Shinjyuku Ku, Tokyo 1608582, Japan
基金
日本学术振兴会;
关键词
Escherichia coli; L-Cysteine; Metabolome analysis; Monobromobimane; yciW gene; SULFUR METABOLISM; ENHANCEMENT; BIOLOGY; PATHWAY;
D O I
10.1016/j.jbiosc.2014.08.012
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
We here analyzed a sulfur index of Escherichia coli using LC-MS/MS combined with thiol-specific derivatization by monobromobimane. The obtained sulfur index was then applied to evaluate the L-cysteine producer. E. coli cells overexpressing the yciW gene, a novel Cys regulon, accumulated L-homocysteine, suggesting that YciW is involved in L-methionine biosynthesis. (C) 2014, The Society for Biotechnology, Japan. All rights reserved.
引用
收藏
页码:310 / 313
页数:4
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