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Combined enhancement of the propionyl-CoA metabolic pathway for efficient androstenedione production in Mycolicibacterium neoaurum
BACKGROUND: The production of androstenedione (AD) from phytosterols by Mycolicibacterium neoaurum is a multi-step biotransformation process, which requires degradation of sterol side chains, accompanied by the production of propionyl-CoA. However, the transient production of large amounts of propio...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9585753/ https://www.ncbi.nlm.nih.gov/pubmed/36266684 http://dx.doi.org/10.1186/s12934-022-01942-x |
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author | Su, Zhenhua Zhang, Zhenjian Yu, Jian Yuan, Congcong Shen, Yanbing Wang, Jianxin Su, Liqiu Wang, Min |
author_facet | Su, Zhenhua Zhang, Zhenjian Yu, Jian Yuan, Congcong Shen, Yanbing Wang, Jianxin Su, Liqiu Wang, Min |
author_sort | Su, Zhenhua |
collection | PubMed |
description | BACKGROUND: The production of androstenedione (AD) from phytosterols by Mycolicibacterium neoaurum is a multi-step biotransformation process, which requires degradation of sterol side chains, accompanied by the production of propionyl-CoA. However, the transient production of large amounts of propionyl-CoA can accumulate intracellularly to produce toxic effects and severely inhibit AD production. RESULTS: In the present study, the intracellular propionyl-CoA concentration was effectively reduced and the productivity of the strain was improved by enhancing the cytosolic methyl-branched lipid synthesis pathway and increasing the expression level of nat operator gene, respectively. Subsequently, the application of a pathway combination strategy, combined and the inducible regulation strategy, further improved AD productivity with a maximum AD conversion rate of 96.88%, an increase of 13.93% over the original strain. CONCLUSIONS: Overall, we provide a new strategy for reducing propionyl-CoA stress during biotransformation for the production of AD and other steroidal drugs using phytosterols. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12934-022-01942-x. |
format | Online Article Text |
id | pubmed-9585753 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-95857532022-10-22 Combined enhancement of the propionyl-CoA metabolic pathway for efficient androstenedione production in Mycolicibacterium neoaurum Su, Zhenhua Zhang, Zhenjian Yu, Jian Yuan, Congcong Shen, Yanbing Wang, Jianxin Su, Liqiu Wang, Min Microb Cell Fact Research BACKGROUND: The production of androstenedione (AD) from phytosterols by Mycolicibacterium neoaurum is a multi-step biotransformation process, which requires degradation of sterol side chains, accompanied by the production of propionyl-CoA. However, the transient production of large amounts of propionyl-CoA can accumulate intracellularly to produce toxic effects and severely inhibit AD production. RESULTS: In the present study, the intracellular propionyl-CoA concentration was effectively reduced and the productivity of the strain was improved by enhancing the cytosolic methyl-branched lipid synthesis pathway and increasing the expression level of nat operator gene, respectively. Subsequently, the application of a pathway combination strategy, combined and the inducible regulation strategy, further improved AD productivity with a maximum AD conversion rate of 96.88%, an increase of 13.93% over the original strain. CONCLUSIONS: Overall, we provide a new strategy for reducing propionyl-CoA stress during biotransformation for the production of AD and other steroidal drugs using phytosterols. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12934-022-01942-x. BioMed Central 2022-10-20 /pmc/articles/PMC9585753/ /pubmed/36266684 http://dx.doi.org/10.1186/s12934-022-01942-x Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
spellingShingle | Research Su, Zhenhua Zhang, Zhenjian Yu, Jian Yuan, Congcong Shen, Yanbing Wang, Jianxin Su, Liqiu Wang, Min Combined enhancement of the propionyl-CoA metabolic pathway for efficient androstenedione production in Mycolicibacterium neoaurum |
title | Combined enhancement of the propionyl-CoA metabolic pathway for efficient androstenedione production in Mycolicibacterium neoaurum |
title_full | Combined enhancement of the propionyl-CoA metabolic pathway for efficient androstenedione production in Mycolicibacterium neoaurum |
title_fullStr | Combined enhancement of the propionyl-CoA metabolic pathway for efficient androstenedione production in Mycolicibacterium neoaurum |
title_full_unstemmed | Combined enhancement of the propionyl-CoA metabolic pathway for efficient androstenedione production in Mycolicibacterium neoaurum |
title_short | Combined enhancement of the propionyl-CoA metabolic pathway for efficient androstenedione production in Mycolicibacterium neoaurum |
title_sort | combined enhancement of the propionyl-coa metabolic pathway for efficient androstenedione production in mycolicibacterium neoaurum |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9585753/ https://www.ncbi.nlm.nih.gov/pubmed/36266684 http://dx.doi.org/10.1186/s12934-022-01942-x |
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