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Metabolic engineering of Escherichia coli to produce (2S, 3R, 4S)-4-hydroxyisoleucine
被引:58
作者:
Smirnov, Sergey V.
[1
]
Kodera, Tomohiro
[2
]
Samsonova, Natalya N.
[1
]
Kotlyarova, Veronika A.
[1
]
Rushkevich, Natalya Yu
[1
]
Kivero, Alexander D.
[1
]
Sokolov, Pavel M.
[1
]
Hibi, Makoto
[3
]
Ogawa, Jun
[3
]
Shimizu, Sakayu
[3
]
机构:
[1] Ajinomoto Genet Res Inst, Moscow 117545, Russia
[2] Ajinomoto Co Inc, Inst Life Sci, Kawasaki Ku, Kawasaki, Kanagawa 2108681, Japan
[3] Kyoto Univ, Div Appl Life Sci, Grad Sch Agr, Sakyo Ku, Kyoto 6068502, Japan
关键词:
4-Hydroxyisoleucine;
Diabetes;
Dioxygenase;
Biotransformation;
Escherichia coli;
AMINO-ACID;
4-HYDROXYISOLEUCINE;
IDENTIFICATION;
ALDOLASE;
GENES;
D O I:
10.1007/s00253-010-2772-3
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:
The stereo-specific l-isoleucine-4-hydroxylase (l-isoleucine dioxygenase (IDO)) was cloned and expressed in an Escherichia coli 2 Delta strain lacking the activities of alpha-ketoglutarate dehydrogenase (EC 1.2.4.2), isocitrate liase (EC 4.1.3.1), and isocitrate dehydrogenase kinase/phosphatase (EC 2.7.11.5). The 2 Delta strain could not grow in a minimal-salt/glucose/glycerol medium due to the blockage of TCA during succinate synthesis. The IDO activity in the 2 Delta strain was able to "shunt" destroyed TCA, thereby coupling l-isoleucine hydroxylation and cell growth. Using this strain, we performed the direct biotransformation of l-isoleucine into 4-HIL with an 82% yield.
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页码:719 / 726
页数:8
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