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Mutagenesis and redox partners analysis of the P450 fatty acid decarboxylase OleT(JE)
The cytochrome P450 enzyme OleT(JE) from Jeotgalicoccus sp. ATCC 8456 is capable of converting free long-chain fatty acids into α-alkenes via one-step oxidative decarboxylation in presence of H(2)O(2) as cofactor or using redox partner systems. This enzyme has attracted much attention due to its int...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5343568/ https://www.ncbi.nlm.nih.gov/pubmed/28276499 http://dx.doi.org/10.1038/srep44258 |
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author | Fang, Bo Xu, Huifang Liu, Yi Qi, Fengxia Zhang, Wei Chen, Hui Wang, Cong Wang, Yilin Yang, Wenxia Li, Shengying |
author_facet | Fang, Bo Xu, Huifang Liu, Yi Qi, Fengxia Zhang, Wei Chen, Hui Wang, Cong Wang, Yilin Yang, Wenxia Li, Shengying |
author_sort | Fang, Bo |
collection | PubMed |
description | The cytochrome P450 enzyme OleT(JE) from Jeotgalicoccus sp. ATCC 8456 is capable of converting free long-chain fatty acids into α-alkenes via one-step oxidative decarboxylation in presence of H(2)O(2) as cofactor or using redox partner systems. This enzyme has attracted much attention due to its intriguing but unclear catalytic mechanism and potential application in biofuel production. Here, we investigated the functionality of a select group of residues (Arg245, Cys365, His85, and Ile170) in the active site of OleT(JE) through extensive mutagenesis analysis. The key roles of these residues for catalytic activity and reaction type selectivity were identified. In addition, a range of heterologous redox partners were found to be able to efficiently support the decarboxylation activity of OleT(JE). The best combination turned out to be SeFdx-6 (ferredoxin) from Synechococcus elongatus PCC 7942 and CgFdR-2 (ferredoxin reductase) from Corynebacterium glutamicum ATCC 13032, which gave the highest myristic acid conversion rate of 94.4%. Moreover, Michaelis-Menton kinetic parameters of OleT(JE) towards myristic acid were determined. |
format | Online Article Text |
id | pubmed-5343568 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-53435682017-03-14 Mutagenesis and redox partners analysis of the P450 fatty acid decarboxylase OleT(JE) Fang, Bo Xu, Huifang Liu, Yi Qi, Fengxia Zhang, Wei Chen, Hui Wang, Cong Wang, Yilin Yang, Wenxia Li, Shengying Sci Rep Article The cytochrome P450 enzyme OleT(JE) from Jeotgalicoccus sp. ATCC 8456 is capable of converting free long-chain fatty acids into α-alkenes via one-step oxidative decarboxylation in presence of H(2)O(2) as cofactor or using redox partner systems. This enzyme has attracted much attention due to its intriguing but unclear catalytic mechanism and potential application in biofuel production. Here, we investigated the functionality of a select group of residues (Arg245, Cys365, His85, and Ile170) in the active site of OleT(JE) through extensive mutagenesis analysis. The key roles of these residues for catalytic activity and reaction type selectivity were identified. In addition, a range of heterologous redox partners were found to be able to efficiently support the decarboxylation activity of OleT(JE). The best combination turned out to be SeFdx-6 (ferredoxin) from Synechococcus elongatus PCC 7942 and CgFdR-2 (ferredoxin reductase) from Corynebacterium glutamicum ATCC 13032, which gave the highest myristic acid conversion rate of 94.4%. Moreover, Michaelis-Menton kinetic parameters of OleT(JE) towards myristic acid were determined. Nature Publishing Group 2017-03-09 /pmc/articles/PMC5343568/ /pubmed/28276499 http://dx.doi.org/10.1038/srep44258 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Fang, Bo Xu, Huifang Liu, Yi Qi, Fengxia Zhang, Wei Chen, Hui Wang, Cong Wang, Yilin Yang, Wenxia Li, Shengying Mutagenesis and redox partners analysis of the P450 fatty acid decarboxylase OleT(JE) |
title | Mutagenesis and redox partners analysis of the P450 fatty acid decarboxylase OleT(JE) |
title_full | Mutagenesis and redox partners analysis of the P450 fatty acid decarboxylase OleT(JE) |
title_fullStr | Mutagenesis and redox partners analysis of the P450 fatty acid decarboxylase OleT(JE) |
title_full_unstemmed | Mutagenesis and redox partners analysis of the P450 fatty acid decarboxylase OleT(JE) |
title_short | Mutagenesis and redox partners analysis of the P450 fatty acid decarboxylase OleT(JE) |
title_sort | mutagenesis and redox partners analysis of the p450 fatty acid decarboxylase olet(je) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5343568/ https://www.ncbi.nlm.nih.gov/pubmed/28276499 http://dx.doi.org/10.1038/srep44258 |
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