Harnessing the Periplasm of Bacterial Cells To Develop Biocatalysts for the Biosynthesis of Highly Pure Chemicals

Although biocatalytic transformation has shown great promise in chemical synthesis, there remain significant challenges in controlling high selectivity without the formation of undesirable by-products. For instance, few attempts to construct biocatalysts for de novo synthesis of pure flavin mononucl...

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Main Authors: Yang, Yun, Wu, Yichao, Hu, Yidan, Wang, Hua, Guo, Lin, Fredrickson, James K., Cao, Bin
Other Authors: Atomi, Haruyuki
Format: Journal Article
Language:English
Published: 2018
Subjects:
Online Access:https://hdl.handle.net/10356/87209
http://hdl.handle.net/10220/44390
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author Yang, Yun
Wu, Yichao
Hu, Yidan
Wang, Hua
Guo, Lin
Fredrickson, James K.
Cao, Bin
author2 Atomi, Haruyuki
author_facet Atomi, Haruyuki
Yang, Yun
Wu, Yichao
Hu, Yidan
Wang, Hua
Guo, Lin
Fredrickson, James K.
Cao, Bin
author_sort Yang, Yun
collection NTU
description Although biocatalytic transformation has shown great promise in chemical synthesis, there remain significant challenges in controlling high selectivity without the formation of undesirable by-products. For instance, few attempts to construct biocatalysts for de novo synthesis of pure flavin mononucleotide (FMN) have been successful, due to riboflavin (RF) accumulating in the cytoplasm and being secreted with FMN. To address this problem, we show here a novel biosynthesis strategy, compartmentalizing the final FMN biosynthesis step in the periplasm of an engineered Escherichia coli strain. This construct is able to overproduce FMN with high specificity (92.4% of total excreted flavins). Such a biosynthesis approach allows isolation of the final biosynthesis step from the cytoplasm to eliminate undesirable by-products, providing a new route to develop biocatalysts for the synthesis of high-purity chemicals.
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spelling ntu-10356/872092020-09-21T11:35:51Z Harnessing the Periplasm of Bacterial Cells To Develop Biocatalysts for the Biosynthesis of Highly Pure Chemicals Yang, Yun Wu, Yichao Hu, Yidan Wang, Hua Guo, Lin Fredrickson, James K. Cao, Bin Atomi, Haruyuki School of Civil and Environmental Engineering Singapore Centre for Environmental Life Sciences Engineering Periplasm Biosynthesis Although biocatalytic transformation has shown great promise in chemical synthesis, there remain significant challenges in controlling high selectivity without the formation of undesirable by-products. For instance, few attempts to construct biocatalysts for de novo synthesis of pure flavin mononucleotide (FMN) have been successful, due to riboflavin (RF) accumulating in the cytoplasm and being secreted with FMN. To address this problem, we show here a novel biosynthesis strategy, compartmentalizing the final FMN biosynthesis step in the periplasm of an engineered Escherichia coli strain. This construct is able to overproduce FMN with high specificity (92.4% of total excreted flavins). Such a biosynthesis approach allows isolation of the final biosynthesis step from the cytoplasm to eliminate undesirable by-products, providing a new route to develop biocatalysts for the synthesis of high-purity chemicals. MOE (Min. of Education, S’pore) 2018-02-02T08:50:09Z 2019-12-06T16:37:17Z 2018-02-02T08:50:09Z 2019-12-06T16:37:17Z 2017 Journal Article Yang, Y., Wu, Y., Hu, Y., Wang, H., Guo, L., Fredrickson, J. K., et al. (2017). Harnessing the Periplasm of Bacterial Cells To Develop Biocatalysts for the Biosynthesis of Highly Pure Chemicals. Applied and Environmental Microbiology, 84(1), e01693-17-. 0099-2240 https://hdl.handle.net/10356/87209 http://hdl.handle.net/10220/44390 10.1128/AEM.01693-17 en Applied and Environmental Microbiology © 2017 American Society for Microbiology. This paper was published in Applied and Environmental Microbiology and is made available as an electronic reprint (preprint) with permission of American Society for Microbiology. The published version is available at: [http://dx.doi.org/10.1128/AEM.01693-17]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. 11 p. application/pdf
spellingShingle Periplasm
Biosynthesis
Yang, Yun
Wu, Yichao
Hu, Yidan
Wang, Hua
Guo, Lin
Fredrickson, James K.
Cao, Bin
Harnessing the Periplasm of Bacterial Cells To Develop Biocatalysts for the Biosynthesis of Highly Pure Chemicals
title Harnessing the Periplasm of Bacterial Cells To Develop Biocatalysts for the Biosynthesis of Highly Pure Chemicals
title_full Harnessing the Periplasm of Bacterial Cells To Develop Biocatalysts for the Biosynthesis of Highly Pure Chemicals
title_fullStr Harnessing the Periplasm of Bacterial Cells To Develop Biocatalysts for the Biosynthesis of Highly Pure Chemicals
title_full_unstemmed Harnessing the Periplasm of Bacterial Cells To Develop Biocatalysts for the Biosynthesis of Highly Pure Chemicals
title_short Harnessing the Periplasm of Bacterial Cells To Develop Biocatalysts for the Biosynthesis of Highly Pure Chemicals
title_sort harnessing the periplasm of bacterial cells to develop biocatalysts for the biosynthesis of highly pure chemicals
topic Periplasm
Biosynthesis
url https://hdl.handle.net/10356/87209
http://hdl.handle.net/10220/44390
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