Overproduction of α-Lipoic Acid by Gene Manipulated Escherichia coli.

Alpha-lipoic acid (LA) is an important enzyme cofactor widely used by organisms and is also a natural antioxidant for the treatment of pathologies driven by low levels of endogenous antioxidants. In order to establish a safer and more efficient process for LA production, we developed a new biologica...

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Main Authors: Yirong Sun, Wenbin Zhang, Jincheng Ma, Hongshen Pang, Haihong Wang
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2017-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC5222372?pdf=render
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author Yirong Sun
Wenbin Zhang
Jincheng Ma
Hongshen Pang
Haihong Wang
author_facet Yirong Sun
Wenbin Zhang
Jincheng Ma
Hongshen Pang
Haihong Wang
author_sort Yirong Sun
collection DOAJ
description Alpha-lipoic acid (LA) is an important enzyme cofactor widely used by organisms and is also a natural antioxidant for the treatment of pathologies driven by low levels of endogenous antioxidants. In order to establish a safer and more efficient process for LA production, we developed a new biological method for LA synthesis based on the emerging knowledge of lipoic acid biosynthesis. We first cloned the lipD gene, which encodes the lipoyl domain of the E2 subunit of pyruvate dehydrogenase, allowing high levels of LipD production. Plasmids containing genes for the biosynthesis of LA were subsequently constructed utilizing various vectors and promotors to produce high levels of LA. These plasmids were transformed into the Escherichia coli strain BL21. Octanoic acid (OA) was used as the substrate for LA synthesis. One transformant, YS61, which carried lipD, lplA, and lipA, produced LA at levels over 200-fold greater than the wild-type strain, showing that LA could be produced efficiently in E. coli using genetic engineering methods.
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spelling doaj.art-9f0f6d3a6b904d5ead6b0415aedd16892022-12-21T22:28:05ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01121e016936910.1371/journal.pone.0169369Overproduction of α-Lipoic Acid by Gene Manipulated Escherichia coli.Yirong SunWenbin ZhangJincheng MaHongshen PangHaihong WangAlpha-lipoic acid (LA) is an important enzyme cofactor widely used by organisms and is also a natural antioxidant for the treatment of pathologies driven by low levels of endogenous antioxidants. In order to establish a safer and more efficient process for LA production, we developed a new biological method for LA synthesis based on the emerging knowledge of lipoic acid biosynthesis. We first cloned the lipD gene, which encodes the lipoyl domain of the E2 subunit of pyruvate dehydrogenase, allowing high levels of LipD production. Plasmids containing genes for the biosynthesis of LA were subsequently constructed utilizing various vectors and promotors to produce high levels of LA. These plasmids were transformed into the Escherichia coli strain BL21. Octanoic acid (OA) was used as the substrate for LA synthesis. One transformant, YS61, which carried lipD, lplA, and lipA, produced LA at levels over 200-fold greater than the wild-type strain, showing that LA could be produced efficiently in E. coli using genetic engineering methods.http://europepmc.org/articles/PMC5222372?pdf=render
spellingShingle Yirong Sun
Wenbin Zhang
Jincheng Ma
Hongshen Pang
Haihong Wang
Overproduction of α-Lipoic Acid by Gene Manipulated Escherichia coli.
PLoS ONE
title Overproduction of α-Lipoic Acid by Gene Manipulated Escherichia coli.
title_full Overproduction of α-Lipoic Acid by Gene Manipulated Escherichia coli.
title_fullStr Overproduction of α-Lipoic Acid by Gene Manipulated Escherichia coli.
title_full_unstemmed Overproduction of α-Lipoic Acid by Gene Manipulated Escherichia coli.
title_short Overproduction of α-Lipoic Acid by Gene Manipulated Escherichia coli.
title_sort overproduction of α lipoic acid by gene manipulated escherichia coli
url http://europepmc.org/articles/PMC5222372?pdf=render
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AT hongshenpang overproductionofalipoicacidbygenemanipulatedescherichiacoli
AT haihongwang overproductionofalipoicacidbygenemanipulatedescherichiacoli