Production of salidroside in metabolically engineered Escherichia coli.
Production of salidroside in metabolically engineered Escherichia coli.
复制标题
代谢工程大肠杆菌中红景天苷的生产
DOI:
10.1038/srep06640
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发表时间:
2014-10-17
影响因子:
4.6
通讯作者:
Ma Y
中科院分区:
文献类型:
--
作者:
Bai Y;Bi H;Zhuang Y;Liu C;Cai T;Liu X;Zhang X;Liu T;Ma Y
Salidroside (1) is the most important bioactive component of Rhodiola (also called as “Tibetan Ginseng”), which is a valuable medicinal herb exhibiting several adaptogenic properties. Due to the inefficiency of plant extraction and chemical synthesis, the supply of salidroside (1) is currently limited. Herein, we achieved unprecedented biosynthesis of salidroside (1) from glucose in a microorganism. First, the pyruvate decarboxylase ARO10 and endogenous alcohol dehydrogenases were recruited to convert 4-hydroxyphenylpyruvate (2), an intermediate of L-tyrosine pathway, to tyrosol (3) in Escherichia coli. Subsequently, tyrosol production was improved by overexpressing the pathway genes, and by eliminating competing pathways and feedback inhibition. Finally, by introducing Rhodiola-derived glycosyltransferase UGT73B6 into the above-mentioned recombinant strain, salidroside (1) was produced with a titer of 56.9 mg/L. Interestingly, the Rhodiola-derived glycosyltransferase, UGT73B6, also catalyzed the attachment of glucose to the phenol position of tyrosol (3) to form icariside D2 (4), which was not reported in any previous literatures.
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影响因子:
3.7
作者:
Lan X;Chang K;Zeng L;Liu X;Qiu F;Zheng W;Quan H;Liao Z;Chen M;Huang W;Liu W;Wang Q
通讯作者:
Wang Q
影响因子:
3.3
作者:
Ouyang, Jing-Feng;Lou, Jianguo;Hong, Dong-Sheng
通讯作者:
Hong, Dong-Sheng
影响因子:
6.1
作者:
Dudley, Jocelyn I.;Lekli, Istvan;Das, Dipak K.
通讯作者:
Das, Dipak K.
DOI:
10.1073/pnas.120163297
发表时间:
2000-06-06
影响因子:
11.1
作者:
Datsenko, KA;Wanner, BL
通讯作者:
Wanner, BL
影响因子:
4.4
作者:
Chavez-Bejar, Maria I.;Lara, Alvaro R.;Gosset, Guillermo
通讯作者:
Gosset, Guillermo