1
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Faria PE, Castro AM, Freire DMG, Mesquita RD. Enzymes and pathways in microbial production of 2,3-butanediol and 3-acetoin isomers. Crit Rev Biotechnol 2023; 43:67-81. [PMID: 34957872 DOI: 10.1080/07388551.2021.2004990] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
2,3-Butanediol (BD) and acetoin (AC) are products of the non-oxidative metabolism of microorganisms, presenting industrial importance due to their wide range of applications and high market value. Their optical isomers have particular applications, justifying the efforts on the selective bioproduction. Each microorganism produces different isomer mixtures, as a consequence of having different butanediol dehydrogenase (BDH) enzymes. However, the whole scene of the isomer bioproduction, considering the several enzymes and conditions, has not been completely elucidated. Here we show the BDH classification as R, S or meso by bioinformatics analysis uncovering the details of the isomers production. The BDH was compared to diacetyl reductases (DAR) and the new enoyl reductases (ER). We observed that R-BDH is the most singular BDH, while meso and S-BDHs are similar and may be better distinguished through their stereo-selective triad. DAR and ER showed distinct stereo-triads from those described for BDHs, agreeing with kinetic data from the literature and our phylogenetic analysis. The ER family probably has meso-BDH like activity as already demonstrated for a single sequence from this group. These results are of great relevance, as they organize BD producing enzymes, to our known, never shown before in the literature. This review also brings attention to nontraditional enzymes/pathways that can be involved with BD/AC synthesis, as well as oxygen conditions that may lead to the differential production of their isomers. Together, this information can provide helpful orientation for future studies in the field of BD/AC biological production, thus contributing to achieve their production on an industrial scale.
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Affiliation(s)
- Priscila Esteves Faria
- Biochemistry Department, Chemistry Institute, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Aline M Castro
- Biotechnology Division, R&D Center (Cenpes), PETROBRAS, Rio de Janeiro, Brazil
| | | | - Rafael D Mesquita
- Biochemistry Department, Chemistry Institute, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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2
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Meng W, Ma C, Xu P, Gao C. Biotechnological production of chiral acetoin. Trends Biotechnol 2022; 40:958-973. [DOI: 10.1016/j.tibtech.2022.01.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 01/13/2022] [Accepted: 01/13/2022] [Indexed: 11/28/2022]
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3
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Highly efficient synthesis of pharmaceutically relevant chiral 3-N-substituted-azacyclic alcohols using two enantiocomplementary short chain dehydrogenases. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2021.108300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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Abstract
The growing need for industrial production of bio-based acetoin and 2,3-butanediol (2,3-BD) is due to both environmental concerns, and their widespread use in the food, pharmaceutical, and chemical industries. Acetoin is a common spice added to many foods, but also a valuable reagent in many chemical syntheses. Similarly, 2,3-BD is an indispensable chemical on the platform in the production of synthetic rubber, printing inks, perfumes, antifreeze, and fuel additives. This state-of-the-art review focuses on representatives of the genus Bacillus as prospective producers of acetoin and 2,3-BD. They have the following important advantages: non-pathogenic nature, unpretentiousness to growing conditions, and the ability to utilize a huge number of substrates (glucose, sucrose, starch, cellulose, and inulin hydrolysates), sugars from the composition of lignocellulose (cellobiose, mannose, galactose, xylose, and arabinose), as well as waste glycerol. In addition, these strains can be improved by genetic engineering, and are amenable to process optimization. Bacillus spp. are among the best acetoin producers. They also synthesize 2,3-BD in titer and yield comparable to those of the pathogenic producers. However, Bacillus spp. show relatively lower productivity, which can be increased in the course of challenging future research.
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5
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Cui Z, Wang Z, Zheng M, Chen T. Advances in biological production of acetoin: a comprehensive overview. Crit Rev Biotechnol 2021; 42:1135-1156. [PMID: 34806505 DOI: 10.1080/07388551.2021.1995319] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Acetoin, a high-value-added bio-based platform chemical, is widely used in foods, cosmetics, agriculture, and the chemical industry. It is an important precursor for the synthesis of: 2,3-butanediol, liquid hydrocarbon fuels and heterocyclic compounds. Since the fossil resources are becoming increasingly scarce, biological production of acetoin has received increasing attention as an alternative to chemical synthesis. Although there are excellent reviews on the: application, catabolism and fermentative production of acetoin, little attention has been paid to acetoin production via: electrode-assisted fermentation, whole-cell biocatalysis, and in vitro/cell-free biocatalysis. In this review, acetoin biosynthesis pathways and relevant key enzymes are firstly reviewed. In addition, various strategies for biological acetoin production are summarized including: cell-free biocatalysis, whole-cell biocatalysis, microbial fermentation, and electrode-assisted fermentation. The advantages and disadvantages of the different approaches are discussed and weighed, illustrating the increasing progress toward economical, green and efficient production of acetoin. Additionally, recent advances in acetoin extraction and recovery in downstream processing are also briefly reviewed. Moreover, the current issues and future prospects of diverse strategies for biological acetoin production are discussed, with the hope of realizing the promises of industrial acetoin biomanufacturing in the near future.
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Affiliation(s)
- Zhenzhen Cui
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China.,Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China.,SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, China
| | - Zhiwen Wang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China.,Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China.,SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, China
| | - Meiyu Zheng
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China.,Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China.,SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, China
| | - Tao Chen
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China.,Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China.,SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, China
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6
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Maina S, Prabhu AA, Vivek N, Vlysidis A, Koutinas A, Kumar V. Prospects on bio-based 2,3-butanediol and acetoin production: Recent progress and advances. Biotechnol Adv 2021; 54:107783. [PMID: 34098005 DOI: 10.1016/j.biotechadv.2021.107783] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 05/27/2021] [Accepted: 06/02/2021] [Indexed: 11/19/2022]
Abstract
The bio-based platform chemicals 2,3-butanediol (BDO) and acetoin have various applications in chemical, cosmetics, food, agriculture, and pharmaceutical industries, whereas the derivatives of BDO could be used as fuel additives, polymer and synthetic rubber production. This review summarizes the novel technological developments in adapting genetic and metabolic engineering strategies for selection and construction of chassis strains for BDO and acetoin production. The valorization of renewable feedstocks and bioprocess development for the upstream and downstream stages of bio-based BDO and acetoin production are discussed. The techno-economic aspects evaluating the viability and industrial potential of bio-based BDO production are presented. The commercialization of bio-based BDO and acetoin production requires the utilization of crude renewable resources, the chassis strains with high fermentation production efficiencies and development of sustainable purification or conversion technologies.
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Affiliation(s)
- Sofia Maina
- Department of Food Science and Human Nutrition, Agricultural University of Athens, Iera Odos, 75, 11855 Athens, Greece
| | - Ashish A Prabhu
- Centre for Climate and Environmental Protection, School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK
| | - Narisetty Vivek
- Centre for Climate and Environmental Protection, School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK
| | - Anestis Vlysidis
- Department of Food Science and Human Nutrition, Agricultural University of Athens, Iera Odos, 75, 11855 Athens, Greece
| | - Apostolis Koutinas
- Department of Food Science and Human Nutrition, Agricultural University of Athens, Iera Odos, 75, 11855 Athens, Greece.
| | - Vinod Kumar
- Centre for Climate and Environmental Protection, School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK.
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7
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Peng K, Guo D, Lou Q, Lu X, Cheng J, Qiao J, Lu L, Cai T, Liu Y, Jiang H. Synthesis of Ligustrazine from Acetaldehyde by a Combined Biological-Chemical Approach. ACS Synth Biol 2020; 9:2902-2908. [PMID: 33156612 DOI: 10.1021/acssynbio.0c00113] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Ligustrazine is an important active alkaloid in medicine and in the food industry. Here, we developed a combined biological-chemical approach to produce ligustrazine from acetaldehyde. First, we constructed a whole-cell biocatalytic system to produce the precursor acetoin from acetaldehyde by overexpressing formolase (FLS). Second, a two-step strategy was developed to enhance protein expression of FLS by codon usage optimization at the first 14 codons and the introduction of an overlapping gene before the start codon. Through expression optimization and directed evolution of FLS, we improved the titer of acetoin about 40 fold when the concentration of acetaldehyde was 1.5 M. Finally, after reaction conditions optimization, the titer of acetoin and ligustrazine reached 222 g L-1 and 94 g L-1, with a 86.5% and 48% conversion rate from acetaldehyde, respectively. The developed one-pot synthesis for acetoin and ligustrazine is expected to be applied to industrial production in the future with the advantages of a green process, high efficiency, and low cost.
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Affiliation(s)
- Kai Peng
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- National Technology Innovation Center of Synthetic Biology, Tianjin, 300308, China
- Tianjin University of Science & Technology, Tianjin, 300457, China
| | - Dan Guo
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- National Technology Innovation Center of Synthetic Biology, Tianjin, 300308, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qianqian Lou
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- National Technology Innovation Center of Synthetic Biology, Tianjin, 300308, China
| | - Xiaoyun Lu
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- National Technology Innovation Center of Synthetic Biology, Tianjin, 300308, China
| | - Jian Cheng
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- National Technology Innovation Center of Synthetic Biology, Tianjin, 300308, China
| | - Jing Qiao
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- National Technology Innovation Center of Synthetic Biology, Tianjin, 300308, China
| | - Lina Lu
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- National Technology Innovation Center of Synthetic Biology, Tianjin, 300308, China
| | - Tao Cai
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- National Technology Innovation Center of Synthetic Biology, Tianjin, 300308, China
| | - Yuwan Liu
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- National Technology Innovation Center of Synthetic Biology, Tianjin, 300308, China
| | - Huifeng Jiang
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
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8
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Liang YF, Yan LT, Yue Q, Zhao JK, Luo CY, Gao F, Li H, Gao WY. Preparation of a whole cell catalyst overexpressing acetohydroxyacid synthase of Thermotoga maritima and its application in the syntheses of α-hydroxyketones. Sci Rep 2020; 10:15404. [PMID: 32958806 PMCID: PMC7505981 DOI: 10.1038/s41598-020-72416-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 08/31/2020] [Indexed: 11/30/2022] Open
Abstract
The large catalytic subunit of acetohydroxyacid synthase (AHAS, EC 2.2.1.6) of Thermotoga maritima (TmcAHAS) was prepared in this study. It possesses high specific activity and excellent stability. The protein and a whole cell catalyst overexpressing the protein were applied to the preparation of α-hydroxyketones including acetoin (AC), 3-hydroxy-2-pentanone (HP), and (R)-phenylacetylcarbinol (R-PAC). The results show that AC and HP could be produced in high yields (84% and 62%, respectively), while R-PAC could be synthesized in a high yield (about 78%) with an R/S ratio of 9:1. Therefore, TmcAHAS and the whole cell catalyst overexpressing the protein could be practically useful bio-catalysts in the preparation of α-hydroxyketones including AC, HP, and R-PAC. To the best of our knowledge, this is the first time that bacterial AHAS was used as a catalyst to prepare HP with a good yield, and also the first time that TmcAHAS was employed to synthesize AC and R-PAC.
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Affiliation(s)
- Yan-Fei Liang
- College of Life Sciences, Northwest University, 229 North Taibai Road, Xi'an, 710069, Shaanxi, People's Republic of China
| | - Le-Tian Yan
- College of Life Sciences, Northwest University, 229 North Taibai Road, Xi'an, 710069, Shaanxi, People's Republic of China
| | - Qiao Yue
- College of Life Sciences, Northwest University, 229 North Taibai Road, Xi'an, 710069, Shaanxi, People's Republic of China
| | - Ji-Kui Zhao
- College of Life Sciences, Northwest University, 229 North Taibai Road, Xi'an, 710069, Shaanxi, People's Republic of China
| | - Cai-Yun Luo
- College of Life Sciences, Northwest University, 229 North Taibai Road, Xi'an, 710069, Shaanxi, People's Republic of China
| | - Feng Gao
- College of Life Sciences, Northwest University, 229 North Taibai Road, Xi'an, 710069, Shaanxi, People's Republic of China
| | - Heng Li
- College of Life Sciences, Northwest University, 229 North Taibai Road, Xi'an, 710069, Shaanxi, People's Republic of China.
| | - Wen-Yun Gao
- College of Life Sciences, Northwest University, 229 North Taibai Road, Xi'an, 710069, Shaanxi, People's Republic of China.
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9
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Lu L, Mao Y, Kou M, Cui Z, Jin B, Chang Z, Wang Z, Ma H, Chen T. Engineering central pathways for industrial-level (3R)-acetoin biosynthesis in Corynebacterium glutamicum. Microb Cell Fact 2020; 19:102. [PMID: 32398078 PMCID: PMC7216327 DOI: 10.1186/s12934-020-01363-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 05/05/2020] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Acetoin, especially the optically pure (3S)- or (3R)-enantiomer, is a high-value-added bio-based platform chemical and important potential pharmaceutical intermediate. Over the past decades, intense efforts have been devoted to the production of acetoin through green biotechniques. However, efficient and economical methods for the production of optically pure acetoin enantiomers are rarely reported. Previously, we systematically engineered the GRAS microorganism Corynebacterium glutamicum to efficiently produce (3R)-acetoin from glucose. Nevertheless, its yield and average productivity were still unsatisfactory for industrial bioprocesses. RESULTS In this study, cellular carbon fluxes in the acetoin producer CGR6 were further redirected toward acetoin synthesis using several metabolic engineering strategies, including blocking anaplerotic pathways, attenuating key genes of the TCA cycle and integrating additional copies of the alsSD operon into the genome. Among them, the combination of attenuation of citrate synthase and inactivation of phosphoenolpyruvate carboxylase showed a significant synergistic effect on acetoin production. Finally, the optimal engineered strain CGS11 produced a titer of 102.45 g/L acetoin with a yield of 0.419 g/g glucose at a rate of 1.86 g/L/h in a 5 L fermenter. The optical purity of the resulting (3R)-acetoin surpassed 95%. CONCLUSION To the best of our knowledge, this is the highest titer of highly enantiomerically enriched (3R)-acetoin, together with a competitive product yield and productivity, achieved in a simple, green processes without expensive additives or substrates. This process therefore opens the possibility to achieve easy, efficient, economical and environmentally-friendly production of (3R)-acetoin via microbial fermentation in the near future.
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Affiliation(s)
- Lingxue Lu
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering of Ministry of Education, SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Yufeng Mao
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Mengyun Kou
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering of Ministry of Education, SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Zhenzhen Cui
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering of Ministry of Education, SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Biao Jin
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering of Ministry of Education, SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Zhishuai Chang
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering of Ministry of Education, SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Zhiwen Wang
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering of Ministry of Education, SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Hongwu Ma
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Tao Chen
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering of Ministry of Education, SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
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10
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Fernández-Gutierrez D, Veillette M, Ávalos Ramirez A, Giroir-Fendler A, Faucheux N, Heitz M. Biovalorization of glucose in four culture media and effect of the nitrogen source on fermentative alcohols production by Escherichia coli. ENVIRONMENTAL TECHNOLOGY 2020; 41:211-221. [PMID: 29969951 DOI: 10.1080/09593330.2018.1494751] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 06/22/2018] [Indexed: 06/08/2023]
Abstract
Glucose is one of the most abundant monosaccharides and the easiest carbon source to be consumed by bacteria. In this study, four culture media (LB, M9, M63 and MOPS) were supplemented with glucose at three different concentrations (4, 12.5 and 25 g/L) in the presence of a genetically modified strain of Escherichia coli with the purpose of selecting the most suitable culture medium to obtain ABD (acetoin (A) and 2,3-butanediol (2,3-BD)). The selected medium was M9, the cheapest culture medium, since the ABD yields obtained fermenting 12.5 and 25 g/L of glucose in M9 culture medium at 37°C, atmospheric pressure, initial pH 6.5, 100 rpm and 10% (v/v) of inoculum were similar compared to the ABD yields obtained using M63 and LB culture media. The influence of nitrogen on ABD yield was tested adding sodium nitrate (NaNO3) or urea ((NH2)2CO) to M9 culture medium at three different nitrogen concentrations (2.5, 5.0 and 7.0 g N/L). Adding urea (7.0 g N/L) to M9 supplemented with 25 g/L of glucose improved by 23% the ABD yield at 96 h compared to M9 without urea, reaching a value of 27.2% (g ABD/g glucose). In contrast, the use of NaNO3 had no significant effect on the ABD yield.
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Affiliation(s)
- David Fernández-Gutierrez
- Department of Chemical and Biotechnological Engineering, Faculty of Engineering, Université de Sherbrooke, Sherbrooke, Canada
- Université Lyon 1, CNRS, UMR 5256, IRCELYON, Institut de Recherches sur la Catalyse et l'Environnement de Lyon, Villeurbanne Cedex, France
| | - Marc Veillette
- Department of Chemical and Biotechnological Engineering, Faculty of Engineering, Université de Sherbrooke, Sherbrooke, Canada
| | - Antonio Ávalos Ramirez
- Centre National en Électrochimie et en Technologies Environnementales, Shawinigan, Canada
| | - Anne Giroir-Fendler
- Université Lyon 1, CNRS, UMR 5256, IRCELYON, Institut de Recherches sur la Catalyse et l'Environnement de Lyon, Villeurbanne Cedex, France
| | - Nathalie Faucheux
- Department of Chemical and Biotechnological Engineering, Faculty of Engineering, Université de Sherbrooke, Sherbrooke, Canada
| | - Michèle Heitz
- Department of Chemical and Biotechnological Engineering, Faculty of Engineering, Université de Sherbrooke, Sherbrooke, Canada
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11
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Cui Z, Mao Y, Zhao Y, Zheng M, Wang Z, Ma H, Chen T. One-pot efficient biosynthesis of (3 R)-acetoin from pyruvate by a two-enzyme cascade. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01332c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Opening the possibility of sustainable industrial (3R)-acetoin biomanufacturing in vitro.
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Affiliation(s)
- Zhenzhen Cui
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education)
- SynBio Research Platform
- Collaborative Innovation Center of Chemical Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
| | - Yufeng Mao
- Biodesign Center
- Key Laboratory of Systems Microbial Biotechnology
- Tianjin Institute of Industrial Biotechnology
- Chinese Academy of Sciences
- Tianjin 300308
| | - Yujiao Zhao
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education)
- SynBio Research Platform
- Collaborative Innovation Center of Chemical Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
| | - Meiyu Zheng
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education)
- SynBio Research Platform
- Collaborative Innovation Center of Chemical Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
| | - Zhiwen Wang
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education)
- SynBio Research Platform
- Collaborative Innovation Center of Chemical Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
| | - Hongwu Ma
- Biodesign Center
- Key Laboratory of Systems Microbial Biotechnology
- Tianjin Institute of Industrial Biotechnology
- Chinese Academy of Sciences
- Tianjin 300308
| | - Tao Chen
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education)
- SynBio Research Platform
- Collaborative Innovation Center of Chemical Science and Engineering
- School of Chemical Engineering and Technology
- Tianjin University
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12
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Seo PW, Jo HJ, Hwang IY, Jeong HY, Kim JH, Kim JW, Lee EY, Park JB, Kim JS. Understanding the molecular properties of the E1 subunit (SucA) of α-ketoglutarate dehydrogenase complex from Vibrio vulnificus for the enantioselective ligation of acetaldehydes into (R)-acetoin. Catal Sci Technol 2020. [DOI: 10.1039/c9cy01566c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Enantioselective ligation of acetaldehydes into (R)-acetoin by SucA from Vibrio vulnificus.
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Affiliation(s)
- Pil-Won Seo
- Department of Chemistry
- Chonnam National University
- Gwangju 61186
- Republic of Korea
| | - Hye-Jin Jo
- Department of Food Science and Engineering
- Ewha Womans University
- Seoul 03760
- Republic of Korea
| | - In Yeub Hwang
- Department of Chemical Engineering
- Kyung Hee University
- Republic of Korea
| | - Ha-Yeon Jeong
- Department of Food Science and Engineering
- Ewha Womans University
- Seoul 03760
- Republic of Korea
| | - Jun-Hong Kim
- Department of Chemistry
- Chonnam National University
- Gwangju 61186
- Republic of Korea
| | - Ji-Won Kim
- Department of Chemistry
- Chonnam National University
- Gwangju 61186
- Republic of Korea
| | - Eun Yeol Lee
- Department of Chemical Engineering
- Kyung Hee University
- Republic of Korea
| | - Jin-Byung Park
- Department of Food Science and Engineering
- Ewha Womans University
- Seoul 03760
- Republic of Korea
| | - Jeong-Sun Kim
- Department of Chemistry
- Chonnam National University
- Gwangju 61186
- Republic of Korea
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13
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Xie NZ, Li JX, Huang RB. Biological Production of (S)-acetoin: A State-of-the-Art Review. Curr Top Med Chem 2019; 19:2348-2356. [PMID: 31648637 DOI: 10.2174/1568026619666191018111424] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 08/28/2019] [Accepted: 09/02/2019] [Indexed: 12/24/2022]
Abstract
Acetoin is an important four-carbon compound that has many applications in foods, chemical synthesis, cosmetics, cigarettes, soaps, and detergents. Its stereoisomer (S)-acetoin, a high-value chiral compound, can also be used to synthesize optically active drugs, which could enhance targeting properties and reduce side effects. Recently, considerable progress has been made in the development of biotechnological routes for (S)-acetoin production. In this review, various strategies for biological (S)- acetoin production are summarized, and their constraints and possible solutions are described. Furthermore, future prospects of biological production of (S)-acetoin are discussed.
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Affiliation(s)
- Neng-Zhong Xie
- National Engineering Research Center for Non-Food Biorefinery, State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Key Laboratory of Bio-refinery, Guangxi Biomass Engineering Technology Research Center, Guangxi Academy of Sciences, 98 Daling Road, Nanning, 530007, China
| | - Jian-Xiu Li
- National Engineering Research Center for Non-Food Biorefinery, State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Key Laboratory of Bio-refinery, Guangxi Biomass Engineering Technology Research Center, Guangxi Academy of Sciences, 98 Daling Road, Nanning, 530007, China
| | - Ri-Bo Huang
- National Engineering Research Center for Non-Food Biorefinery, State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Key Laboratory of Bio-refinery, Guangxi Biomass Engineering Technology Research Center, Guangxi Academy of Sciences, 98 Daling Road, Nanning, 530007, China.,State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, 530004, China
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Ogórek R, Jarosz B. Assessment of headspace solid-phase microextraction (HS-SPME) for control of asymmetric bioreduction of ketones by Alternaria alternata. BIOCATAL BIOTRANSFOR 2019. [DOI: 10.1080/10242422.2019.1664478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Rafał Ogórek
- Department of Mycology and Genetics, Institute of Genetics and Microbiology, University of Wroclaw, Wroclaw, Poland
| | - Bogdan Jarosz
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
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15
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Wang Y, Sun W, Zheng S, Zhang Y, Bao Y. Genetic engineering of Bacillus sp. and fermentation process optimizing for diacetyl production. J Biotechnol 2019; 301:2-10. [DOI: 10.1016/j.jbiotec.2019.05.308] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 04/25/2019] [Accepted: 05/31/2019] [Indexed: 10/26/2022]
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Zhang HL, Zhang C, Pei CH, Han MN, Li W. Enantioselective synthesis of enantiopure chiral alcohols using carbonyl reductases screened from Yarrowia lipolytica. J Appl Microbiol 2018; 126:127-137. [PMID: 30291666 DOI: 10.1111/jam.14125] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 09/12/2018] [Accepted: 09/25/2018] [Indexed: 11/27/2022]
Abstract
AIMS We aimed to explore Yarrowia lipolytica carbonyl reductases as effective biocatalysts and to develop efficient asymmetric reduction systems for chiral alcohol synthesis. METHODS AND RESULTS Yarrowia lipolytica carbonyl reductase genes were obtained via homologous sequence amplification strategy. Two carbonyl reductases, YaCRI and YaCRII, were identified and characterized, and used to catalyse the conversion of 2-hydroxyacetophenone (2-HAP) to optically pure (S)-1-phenyl-1,2-ethanediol. Enzymatic assays revealed that YaCRI and YaCRII exhibited specific activities of 6·96 U mg-1 (99·8% e.e.) and 7·85 U mg-1 (99·9% e.e.), respectively, and showed moderate heat resistance at 40-50°C and acid tolerance at pH 5·0-6·0. An efficient whole-cell two-phase system was established using reductase-expressing recombinant Escherichia coli. The conversion of 2-HAP (20·0 g l-1 ) conversion with the solvent of dibutyl phthalate was approximately 70-fold higher than in water. Furthermore, the two recombinant E. coli displayed biocatalyst activity and enantioselectivity towards several different carbonyl compounds, and E. coli BL21 (DE3)/pET-28a-yacrII showed a broad substrate spectrum. CONCLUSIONS A new whole-cell recombinant E. coli-based bioreduction system for enantiopure alcohol synthesis with high enantioselectivity at high substrate concentrations was developed. SIGNIFICANCE AND IMPACT OF THE STUDY We proposed a promising approach for the efficient preparation of enantiopure chiral alcohols.
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Affiliation(s)
- H-L Zhang
- Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Environmental Science, Hebei University, Baoding, China
| | - C Zhang
- Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Environmental Science, Hebei University, Baoding, China
| | - C-H Pei
- Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Environmental Science, Hebei University, Baoding, China
| | - M-N Han
- Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Environmental Science, Hebei University, Baoding, China
| | - W Li
- Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry and Environmental Science, Hebei University, Baoding, China
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Li JX, Huang YY, Chen XR, Du QS, Meng JZ, Xie NZ, Huang RB. Enhanced production of optical ( S)-acetoin by a recombinant Escherichia coli whole-cell biocatalyst with NADH regeneration. RSC Adv 2018; 8:30512-30519. [PMID: 35546830 PMCID: PMC9085422 DOI: 10.1039/c8ra06260a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 08/21/2018] [Indexed: 12/19/2022] Open
Abstract
Acetoin is an important platform chemical with a variety of applications in foods, cosmetics, chemical synthesis, and especially in the asymmetric synthesis of optically active pharmaceuticals. It is also a useful breath biomarker for early lung cancer diagnosis. In order to enhance production of optical (S)-acetoin and facilitate this building block for a series of chiral pharmaceuticals derivatives, we have developed a systematic approach using in situ-NADH regeneration systems and promising diacetyl reductase. Under optimal conditions, we have obtained 52.9 g L-1 of (S)-acetoin with an enantiomeric purity of 99.5% and a productivity of 6.2 g (L h)-1. The results reported in this study demonstrated that the production of (S)-acetoin could be effectively improved through the engineering of cofactor regeneration with promising diacetyl reductase. The systematic approach developed in this study could also be applied to synthesize other optically active α-hydroxy ketones, which may provide valuable benefits for the study of drug development.
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Affiliation(s)
- Jian-Xiu Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Life Science and Biotechnology College, Guangxi University 100 Daxue Road Nanning 530004 China
- State Key Laboratory of No-Food Biomass and Enzyme Technology, National Engineering Research Center for No-Food Biorefinery, Guangxi Key Laboratory of Biorefinery, Guangxi Academy of Sciences 98 Daling Road Nanning 530007 China
| | - Yan-Yan Huang
- State Key Laboratory of No-Food Biomass and Enzyme Technology, National Engineering Research Center for No-Food Biorefinery, Guangxi Key Laboratory of Biorefinery, Guangxi Academy of Sciences 98 Daling Road Nanning 530007 China
| | - Xian-Rui Chen
- State Key Laboratory of No-Food Biomass and Enzyme Technology, National Engineering Research Center for No-Food Biorefinery, Guangxi Key Laboratory of Biorefinery, Guangxi Academy of Sciences 98 Daling Road Nanning 530007 China
| | - Qi-Shi Du
- State Key Laboratory of No-Food Biomass and Enzyme Technology, National Engineering Research Center for No-Food Biorefinery, Guangxi Key Laboratory of Biorefinery, Guangxi Academy of Sciences 98 Daling Road Nanning 530007 China
| | - Jian-Zong Meng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Life Science and Biotechnology College, Guangxi University 100 Daxue Road Nanning 530004 China
| | - Neng-Zhong Xie
- State Key Laboratory of No-Food Biomass and Enzyme Technology, National Engineering Research Center for No-Food Biorefinery, Guangxi Key Laboratory of Biorefinery, Guangxi Academy of Sciences 98 Daling Road Nanning 530007 China
| | - Ri-Bo Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Life Science and Biotechnology College, Guangxi University 100 Daxue Road Nanning 530004 China
- State Key Laboratory of No-Food Biomass and Enzyme Technology, National Engineering Research Center for No-Food Biorefinery, Guangxi Key Laboratory of Biorefinery, Guangxi Academy of Sciences 98 Daling Road Nanning 530007 China
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Wang X, Hou Y, Liu L, Li J, Du G, Chen J, Wang M. A new approach for efficient synthesis of phenyllactic acid from L-phenylalanine: Pathway design and cofactor engineering. J Food Biochem 2018. [DOI: 10.1111/jfbc.12584] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiuting Wang
- Key Laboratory of Food Science and Technology, Ministry of Education; Jiangnan University; Wuxi China
- Key Laboratory of Industrial Biotechnology, Ministry of Education; Jiangnan University; Wuxi China
| | - Ying Hou
- Key Laboratory of Industrial Biotechnology, Ministry of Education; Jiangnan University; Wuxi China
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education; Tianjin University of Science & Technology; Tianjin China
| | - Long Liu
- Key Laboratory of Industrial Biotechnology, Ministry of Education; Jiangnan University; Wuxi China
| | - Jianghua Li
- Key Laboratory of Industrial Biotechnology, Ministry of Education; Jiangnan University; Wuxi China
| | - Guocheng Du
- Key Laboratory of Industrial Biotechnology, Ministry of Education; Jiangnan University; Wuxi China
| | - Jian Chen
- Key Laboratory of Industrial Biotechnology, Ministry of Education; Jiangnan University; Wuxi China
| | - Miao Wang
- Key Laboratory of Food Science and Technology, Ministry of Education; Jiangnan University; Wuxi China
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Mishra P, Lee NR, Lakshmanan M, Kim M, Kim BG, Lee DY. Genome-scale model-driven strain design for dicarboxylic acid production in Yarrowia lipolytica. BMC SYSTEMS BIOLOGY 2018; 12:12. [PMID: 29560822 PMCID: PMC5861505 DOI: 10.1186/s12918-018-0542-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Background Recently, there have been several attempts to produce long-chain dicarboxylic acids (DCAs) in various microbial hosts. Of these, Yarrowia lipolytica has great potential due to its oleaginous characteristics and unique ability to utilize hydrophobic substrates. However, Y. lipolytica should be further engineered to make it more competitive: the current approaches are mostly intuitive and cumbersome, thus limiting its industrial application. Results In this study, we proposed model-guided metabolic engineering strategies for enhanced production of DCAs in Y. lipolytica. At the outset, we reconstructed genome-scale metabolic model (GSMM) of Y. lipolytica (iYLI647) by substantially expanding the previous models. Subsequently, the model was validated using three sets of published culture experiment data. It was finally exploited to identify genetic engineering targets for overexpression, knockout, and cofactor modification by applying several in silico strain design methods, which potentially give rise to high yield production of the industrially relevant long-chain DCAs, e.g., dodecanedioic acid (DDDA). The resultant targets include (1) malate dehydrogenase and malic enzyme genes and (2) glutamate dehydrogenase gene, in silico overexpression of which generated additional NADPH required for fatty acid synthesis, leading to the increased DDDA fluxes by 48% and 22% higher, respectively, compared to wild-type. We further investigated the effect of supplying branched-chain amino acids on the acetyl-CoA turn-over rate which is key metabolite for fatty acid synthesis, suggesting their significance for production of DDDA in Y. lipolytica. Conclusion In silico model-based strain design strategies allowed us to identify several metabolic engineering targets for overproducing DCAs in lipid accumulating yeast, Y. lipolytica. Thus, the current study can provide a methodological framework that is applicable to other oleaginous yeasts for value-added biochemical production. Electronic supplementary material The online version of this article (10.1186/s12918-018-0542-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Pranjul Mishra
- NUS Synthetic Biology for Clinical and Technological Innovation (SynCTI), Life Sciences Institute, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore
| | - Na-Rae Lee
- NUS Synthetic Biology for Clinical and Technological Innovation (SynCTI), Life Sciences Institute, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore
| | - Meiyappan Lakshmanan
- Bioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), 20 Biopolis Way, #06-01, Centros, Singapore, 138668, Singapore
| | - Minsuk Kim
- School of Chemical and Biological Engineering, Institute of Molecular Biology and Genetics, and Bioengineering Institute, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| | - Byung-Gee Kim
- School of Chemical and Biological Engineering, Institute of Molecular Biology and Genetics, and Bioengineering Institute, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
| | - Dong-Yup Lee
- NUS Synthetic Biology for Clinical and Technological Innovation (SynCTI), Life Sciences Institute, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore. .,Bioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), 20 Biopolis Way, #06-01, Centros, Singapore, 138668, Singapore. .,School of Chemical Engineering, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea.
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Efficient (3S)-Acetoin and (2S,3S)-2,3-Butanediol Production from meso-2,3-Butanediol Using Whole-Cell Biocatalysis. Molecules 2018; 23:molecules23030691. [PMID: 29562693 PMCID: PMC6017632 DOI: 10.3390/molecules23030691] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 03/06/2018] [Accepted: 03/12/2018] [Indexed: 11/17/2022] Open
Abstract
(3S)-Acetoin and (2S,3S)-2,3-butanediol are important platform chemicals widely applied in the asymmetric synthesis of valuable chiral chemicals. However, their production by fermentative methods is difficult to perform. This study aimed to develop a whole-cell biocatalysis strategy for the production of (3S)-acetoin and (2S,3S)-2,3-butanediol from meso-2,3-butanediol. First, E. coli co-expressing (2R,3R)-2,3-butanediol dehydrogenase, NADH oxidase and Vitreoscilla hemoglobin was developed for (3S)-acetoin production from meso-2,3-butanediol. Maximum (3S)-acetoin concentration of 72.38 g/L with the stereoisomeric purity of 94.65% was achieved at 24 h under optimal conditions. Subsequently, we developed another biocatalyst co-expressing (2S,3S)-2,3-butanediol dehydrogenase and formate dehydrogenase for (2S,3S)-2,3-butanediol production from (3S)-acetoin. Synchronous catalysis together with two biocatalysts afforded 38.41 g/L of (2S,3S)-butanediol with stereoisomeric purity of 98.03% from 40 g/L meso-2,3-butanediol. These results exhibited the potential for (3S)-acetoin and (2S,3S)-butanediol production from meso-2,3-butanediol as a substrate via whole-cell biocatalysis.
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Jia X, Liu Y, Han Y. A thermophilic cell-free cascade enzymatic reaction for acetoin synthesis from pyruvate. Sci Rep 2017; 7:4333. [PMID: 28659601 PMCID: PMC5489476 DOI: 10.1038/s41598-017-04684-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 05/18/2017] [Indexed: 11/09/2022] Open
Abstract
Acetoin (3-hydroxy-2-butanone) is an important bio-based platform chemical with wide applications. In vitro enzyme catalysed synthesis exhibits great feasibility in the production of chemicals with high purity. In the present work, a synthetic pathway involving a two-step continuous reaction was constructed in vitro for acetoin production from pyruvate at improved temperature. Thermostable candidates, acetolactate synthase (coAHASL1 and coAHASL2 from Caldicellulosiruptor owensensis OL) and α-acetolactate decarboxylase (bsALDC from Bacillus subtilis IPE5-4) were cloned, heterologously expressed, and characterized. All the enzymes showed maximum activities at 65–70 °C and pH of 6.5. Enzyme kinetics analysis showed that coAHASL1 had a higher activity but lower affinity against pyruvate than that of coAHASL2. In addition, the activities of coAHASL1 and bsALDC were promoted by Mn2+ and NADPH. The cascade enzymatic reaction was optimized by using coAHASL1 and bsALDC based on their kinetic properties. Under optimal conditions, a maximum concentration of 3.36 ± 0.26 mM acetoin was produced from 10 mM pyruvate after reaction for 24 h at 65 °C. The productivity of acetoin was 0.14 mM h−1, and the yield was 67.80% compared with the theoretical value. The results confirmed the feasibility of synthesis of acetoin from pyruvate with a cell-free enzyme catalysed system at improved temperature.
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Affiliation(s)
- Xiaojing Jia
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, PR China.,University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Ying Liu
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, PR China
| | - Yejun Han
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, PR China.
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Ding H, Gao F, Yu Y, Chen B. Biochemical and Computational Insights on a Novel Acid-Resistant and Thermal-Stable Glucose 1-Dehydrogenase. Int J Mol Sci 2017; 18:ijms18061198. [PMID: 28587256 PMCID: PMC5486021 DOI: 10.3390/ijms18061198] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 05/30/2017] [Accepted: 05/30/2017] [Indexed: 11/29/2022] Open
Abstract
Due to the dual cofactor specificity, glucose 1-dehydrogenase (GDH) has been considered as a promising alternative for coenzyme regeneration in biocatalysis. To mine for potential GDHs for practical applications, several genes encoding for GDH had been heterogeneously expressed in Escherichia coli BL21 (DE3) for primary screening. Of all the candidates, GDH from Bacillus sp. ZJ (BzGDH) was one of the most robust enzymes. BzGDH was then purified to homogeneity by immobilized metal affinity chromatography and characterized biochemically. It displayed maximum activity at 45 °C and pH 9.0, and was stable at temperatures below 50 °C. BzGDH also exhibited a broad pH stability, especially in the acidic region, which could maintain around 80% of its initial activity at the pH range of 4.0–8.5 after incubating for 1 hour. Molecular dynamics simulation was conducted for better understanding the stability feature of BzGDH against the structural context. The in-silico simulation shows that BzGDH is stable and can maintain its overall structure against heat during the simulation at 323 K, which is consistent with the biochemical studies. In brief, the robust stability of BzGDH made it an attractive participant for cofactor regeneration on practical applications, especially for the catalysis implemented in acidic pH and high temperature.
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Affiliation(s)
- Haitao Ding
- Key Laboratory for Polar Science of State Oceanic Administration, Polar Research Institute of China, Shanghai 200136, China.
| | - Fen Gao
- East China Sea Fisheries Research Institute, Shanghai 200090, China.
| | - Yong Yu
- Key Laboratory for Polar Science of State Oceanic Administration, Polar Research Institute of China, Shanghai 200136, China.
| | - Bo Chen
- Key Laboratory for Polar Science of State Oceanic Administration, Polar Research Institute of China, Shanghai 200136, China.
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Sun T, Li B, Nie Y, Wang D, Xu Y. Enhancement of asymmetric bioreduction of N,N-dimethyl-3-keto-3-(2-thienyl)-1-propanamine to corresponding (S)-enantiomer by fusion of carbonyl reductase and glucose dehydrogenase. BIORESOUR BIOPROCESS 2017. [DOI: 10.1186/s40643-017-0151-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Chen LF, Fan HY, Zhang YP, Wu K, Wang HL, Lin JP, Wei DZ. Development of a practical biocatalytic process for ( S )- N -Boc-3-hydroxypiperidine synthesis. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.037] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Chen K, Li K, Deng J, Zhang B, Lin J, Wei D. Carbonyl reductase identification and development of whole-cell biotransformation for highly efficient synthesis of (R)-[3,5-bis(trifluoromethyl)phenyl] ethanol. Microb Cell Fact 2016; 15:191. [PMID: 27835967 PMCID: PMC5106766 DOI: 10.1186/s12934-016-0585-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 10/28/2016] [Indexed: 02/01/2023] Open
Abstract
Background (R)-[3,5-bis(trifluoromethyl)phenyl] ethanol [(R)-3,5-BTPE] is a valuable chiral intermediate for Aprepitant (Emend) and Fosaprepitant (Ivemend). Biocatalyzed asymmetric reduction is a preferred approach to synthesize highly optically active (R)-3,5-BTPE. However, the product concentration and productivity of reported (R)-3,5-BTPE synthetic processes remain unsatisfied. Results A NADPH-dependent carbonyl reductase from Lactobacillus kefir (LkCR) was discovered by genome mining for reduction of 3,5-bis(trifluoromethyl) acetophenone (3,5-BTAP) into (R)-3,5-BTPE with excellent enantioselectivity. In order to synthesize (R)-3,5-BTPE efficiently, LkCR was coexpressed with glucose dehydrogenase from Bacillus subtilis (BsGDH) for NADPH regeneration in Escherichia coli BL21 (DE3) cells, and the optimal recombinant strain produced 250.3 g/L (R)-3,5-BTPE with 99.9% ee but an unsatisfied productivity of 5.21 g/(L h). Then, four different linker peptides were used for the fusion expression of LkCR and BsGDH in E. coli to regulate catalytic efficiency of the enzymes and improved NADPH-recycling efficiency. Using the best strain (E. coli/pET-BsGDH-ER/K(10 nm)-LkCR), up to 297.3 g/L (R)-3,5-BTPE with enantiopurity >99.9% ee was produced via reduction of as much as 1.2 M of substrate with a 96.7% yield and productivity of 29.7 g/(L h). Conclusions Recombinant E. coli/pET-BsGDH-ER/K(10 nm)-LkCR was developed for the bioreduction of 3,5-BTAP to (R)-3,5-BTPE, offered the best results in terms of high product concentration and productivity, demonstrating its great potential in industrial manufacturing of (R)-3,5-BTPE. Electronic supplementary material The online version of this article (doi:10.1186/s12934-016-0585-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kangling Chen
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai, 200237, China
| | - Kefei Li
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai, 200237, China
| | - Jian Deng
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai, 200237, China
| | - Baoqi Zhang
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai, 200237, China
| | - Jinping Lin
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai, 200237, China.
| | - Dongzhi Wei
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai, 200237, China
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Zheng Z, Zhao M, Zang Y, Zhou Y, Ouyang J. Production of optically pure L-phenyllactic acid by using engineered Escherichia coli coexpressing L-lactate dehydrogenase and formate dehydrogenase. J Biotechnol 2015; 207:47-51. [PMID: 26008622 DOI: 10.1016/j.jbiotec.2015.05.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 04/10/2015] [Accepted: 05/18/2015] [Indexed: 10/23/2022]
Abstract
L-Phenyllactic acid (L-PLA) is a novel antiseptic agent with broad and effective antimicrobial activity. In addition, L-PLA has been used for synthesis of poly(phenyllactic acid)s, which exhibits better mechanical properties than poly(lactic acid)s. However, the concentration and optical purity of L-PLA produced by native microbes was rather low. An NAD-dependent L-lactate dehydrogenase (L-nLDH) from Bacillus coagulans NL01 was confirmed to have a good ability to produce L-PLA from phenylpyruvic acid (PPA). In the present study, l-nLDH gene and formate dehydrogenase gene were heterologously coexpressed in Escherichia coli. Through two coupled reactions, 79.6mM l-PLA was produced from 82.8mM PPA in 40min and the enantiomeric excess value of L-PLA was high (>99%). Therefore, this process suggested a promising alternative for the production of chiral l-PLA.
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Affiliation(s)
- Zhaojuan Zheng
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China; Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals, Nanjing 210037, People's Republic of China
| | - Mingyue Zhao
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Ying Zang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Ying Zhou
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Jia Ouyang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China; Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals, Nanjing 210037, People's Republic of China.
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Zhu Y, Hu F, Zhu Y, Wang L, Qi B. Enhancement of phenyllactic acid biosynthesis by recognition site replacement of D-lactate dehydrogenase from Lactobacillus pentosus. Biotechnol Lett 2015; 37:1233-41. [PMID: 25650346 DOI: 10.1007/s10529-015-1778-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 01/22/2015] [Indexed: 10/24/2022]
Abstract
OBJECTIVES The Tyr52 residue of D-lactate dehydrogenase (D-LDH) from Lactobacillus pentosus was replaced with small hydrophobic residues and overexpressed in E. coli BL21 (DE3) to enhance 3-phenyllactic acid (PLA) synthesis by whole-cell catalyst. RESULTS Escherichia coli pET-28a-d-ldh produced 12.2 g PLA l(-1) in 3 h, with a molar conversion rate of 61 %, while E. coli pET-28a-d-ldh (Y52V) produced 15.6 g PLA l(-1), with a molar conversion rate of 77 %. This study demonstrates the feasibility of using engineered E. coli for PLA production from phenylpyruvate (PPA) and showed that site-directed mutagenesis of d-ldh markedly improved PLA yield and substrate conversion rate. CONCLUSION This biocatalytic system is a promising platform for PLA production from PPA.
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Affiliation(s)
- Yibo Zhu
- School of Biotechnology and Food Engineering, Changshu Institute of Technology, Changshu, 215500, Jiangsu, People's Republic of China,
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Chu H, Xin B, Liu P, Wang Y, Li L, Liu X, Zhang X, Ma C, Xu P, Gao C. Metabolic engineering of Escherichia coli for production of (2S,3S)-butane-2,3-diol from glucose. BIOTECHNOLOGY FOR BIOFUELS 2015; 8:143. [PMID: 26379775 PMCID: PMC4570510 DOI: 10.1186/s13068-015-0324-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 08/25/2015] [Indexed: 05/12/2023]
Abstract
BACKGROUND Butane-2,3-diol (2,3-BD) is a fuel and platform biochemical with various industrial applications. 2,3-BD exists in three stereoisomeric forms: (2R,3R)-2,3-BD, meso-2,3-BD and (2S,3S)-2,3-BD. Microbial fermentative processes have been reported for (2R,3R)-2,3-BD and meso-2,3-BD production. RESULTS The production of (2S,3S)-2,3-BD from glucose was acquired by whole cells of recombinant Escherichia coli coexpressing the α-acetolactate synthase and meso-butane-2,3-diol dehydrogenase of Enterobacter cloacae subsp. dissolvens strain SDM. An optimal biocatalyst for (2S,3S)-2,3-BD production, E. coli BL21 (pETDuet-PT7-budB-PT7-budC), was constructed and the bioconversion conditions were optimized. With the addition of 10 mM FeCl3 in the bioconversion system, (2S,3S)-2,3-BD at a concentration of 2.2 g/L was obtained with a stereoisomeric purity of 95.0 % using the metabolically engineered strain from glucose. CONCLUSIONS The engineered E. coli strain is the first one that can be used in the direct production of (2S,3S)-2,3-BD from glucose. The results demonstrated that the method developed here would be a promising process for efficient (2S,3S)-2,3-BD production.
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Affiliation(s)
- Haipei Chu
- />State Key Laboratory of Microbial Technology, Shandong University, Jinan, 250100 People’s Republic of China
| | - Bo Xin
- />State Key Laboratory of Microbial Technology, Shandong University, Jinan, 250100 People’s Republic of China
| | - Peihai Liu
- />Rizhao Entry-Exit Inspection and Quarantine Bureau, Rizhao, 276800 People’s Republic of China
| | - Yu Wang
- />State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240 People’s Republic of China
| | - Lixiang Li
- />State Key Laboratory of Microbial Technology, Shandong University, Jinan, 250100 People’s Republic of China
| | - Xiuxiu Liu
- />State Key Laboratory of Microbial Technology, Shandong University, Jinan, 250100 People’s Republic of China
| | - Xuan Zhang
- />State Key Laboratory of Microbial Technology, Shandong University, Jinan, 250100 People’s Republic of China
| | - Cuiqing Ma
- />State Key Laboratory of Microbial Technology, Shandong University, Jinan, 250100 People’s Republic of China
| | - Ping Xu
- />State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240 People’s Republic of China
| | - Chao Gao
- />State Key Laboratory of Microbial Technology, Shandong University, Jinan, 250100 People’s Republic of China
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Xie NZ, Li JX, Song LF, Hou JF, Guo L, Du QS, Yu B, Huang RB. Genome sequence of type strain Paenibacillus polymyxa DSM 365, a highly efficient producer of optically active (R,R)-2,3-butanediol. J Biotechnol 2014; 195:72-3. [PMID: 25450636 DOI: 10.1016/j.jbiotec.2014.07.441] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Accepted: 07/24/2014] [Indexed: 10/24/2022]
Abstract
Paenibacillus polymyxa DSM 365, an efficient producer of (R,R)-2,3-butanediol, is known to show the highest production titer and productivity reported to date. Here, the first draft genome sequence of this promising strain may provide the genetic basis for further insights into the molecular mechanisms underlying the production of (R,R)-2,3-butanediol with high optical purity and at a high titer. It will also facilitate the design of rational strategies for further strain improvements, as well as construction of artificial biosynthetic pathways through synthetic biology for asymmetric synthesis of chiral 2,3-butanediol or acetoin in common microbial hosts.
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Affiliation(s)
- Neng-Zhong Xie
- National Engineering Research Center for Non-food Biorefinery, State Key Laboratory of Non-food Biomass Energy and Enzyme Technology, Guangxi Academy of Sciences, No. 98 Da-ling Road, Nanning 530007, China
| | - Jian-Xiu Li
- National Engineering Research Center for Non-food Biorefinery, State Key Laboratory of Non-food Biomass Energy and Enzyme Technology, Guangxi Academy of Sciences, No. 98 Da-ling Road, Nanning 530007, China
| | - Li-Fu Song
- Institute of Bioprocess and Biosystems Engineering, Hamburg University of Technology, Denickestrasse 15, Hamburg 21073, Germany
| | - Jian-Feng Hou
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, NO. 1 Beichen West Road, Beijing 100101, China
| | - Ling Guo
- National Engineering Research Center for Non-food Biorefinery, State Key Laboratory of Non-food Biomass Energy and Enzyme Technology, Guangxi Academy of Sciences, No. 98 Da-ling Road, Nanning 530007, China
| | - Qi-Shi Du
- National Engineering Research Center for Non-food Biorefinery, State Key Laboratory of Non-food Biomass Energy and Enzyme Technology, Guangxi Academy of Sciences, No. 98 Da-ling Road, Nanning 530007, China
| | - Bo Yu
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, NO. 1 Beichen West Road, Beijing 100101, China
| | - Ri-Bo Huang
- National Engineering Research Center for Non-food Biorefinery, State Key Laboratory of Non-food Biomass Energy and Enzyme Technology, Guangxi Academy of Sciences, No. 98 Da-ling Road, Nanning 530007, China.
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Liu X, Wang C, Zhang L, Yao Z, Cui D, Wu L, Lin J, Yuan YRA, Wei D. Structural and mutational studies on an aldo-keto reductase AKR5C3 from Gluconobacter oxydans. Protein Sci 2014; 23:1540-9. [PMID: 25131535 DOI: 10.1002/pro.2531] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 07/31/2014] [Accepted: 08/04/2014] [Indexed: 11/09/2022]
Abstract
An aldo-keto reductase AKR5C3 from Gluconobacter oxydans (designated as Gox0644) is a useful enzyme with various substrates, including aldehydes, diacetyl, keto esters, and α-ketocarbonyl compounds. The crystal structures of AKR5C3 in apoform in complex with NADPH and the D53A mutant (AKR5C3(-D53A) ) in complex with NADPH are presented herein. Structure comparison and site-directed mutagenesis combined with biochemical kinetics analysis reveal that the conserved Asp53 in the AKR5C3 catalytic tetrad has a crucial role in securing active pocket conformation. The gain-of-function Asp53 to Ala mutation triggers conformational changes on the Trp30 and Trp191 side chains, improving NADPH affinity to AKR5C3, which helps increase catalytic efficiency. The highly conserved Trp30 and Trp191 residues interact with the nicotinamide moiety of NADPH and help form the NADPH-binding pocket. The AKR5C3(-W30A) and AKR5C3(-W191Y) mutants show decreased activities, confirming that both residues facilitate catalysis. Residue Trp191 is in the loop structure, and the AKR5C3(-W191Y) mutant does not react with benzaldehyde, which might also determine substrate recognition. Arg192, which is involved in the substrate binding, is another important residue. The introduction of R192G increases substrate-binding affinity by improving hydrophobicity in the substrate-binding pocket. These results not only supplement the AKRs superfamily with crystal structures but also provide useful information for understanding the catalytic properties of AKR5C3 and guiding further engineering of this enzyme.
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Affiliation(s)
- Xu Liu
- State Key Laboratory of Bioreactor Engineering, Newworld Institute of Biotechnology, East China University of Science and Technology, Shanghai, 200237, China
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Efficient production of (R)-2-hydroxy-4-phenylbutyric acid by using a coupled reconstructed D-lactate dehydrogenase and formate dehydrogenase system. PLoS One 2014; 9:e104204. [PMID: 25089519 PMCID: PMC4121320 DOI: 10.1371/journal.pone.0104204] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 07/07/2014] [Indexed: 11/22/2022] Open
Abstract
Background (R)-2-Hydroxy-4-phenylbutyric acid [(R)-HPBA] is a key precursor for the production of angiotensin-converting enzyme inhibitors. However, the product yield and concentration of reported (R)-HPBA synthetic processes remain unsatisfactory. Methodology/Principal Findings The Y52L/F299Y mutant of NAD-dependent d-lactate dehydrogenase (d-nLDH) in Lactobacillus bulgaricus ATCC 11842 was found to have high bio-reduction activity toward 2-oxo-4-phenylbutyric acid (OPBA). The mutant d-nLDHY52L/F299Y was then coexpressed with formate dehydrogenase in Escherichia coli BL21 (DE3) to construct a novel biocatalyst E. coli DF. Thus, a novel bio-reduction process utilizing whole cells of E. coli DF as the biocatalyst and formate as the co-substrate for cofactor regeneration was developed for the production of (R)-HPBA from OPBA. The biocatalysis conditions were then optimized. Conclusions/Significance Under the optimum conditions, 73.4 mM OPBA was reduced to 71.8 mM (R)-HPBA in 90 min. Given its high product enantiomeric excess (>99%) and productivity (47.9 mM h−1), the constructed coupling biocatalysis system is a promising alternative for (R)-HPBA production.
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Efficient whole-cell biocatalyst for acetoin production with NAD+ regeneration system through homologous co-expression of 2,3-butanediol dehydrogenase and NADH oxidase in engineered Bacillus subtilis. PLoS One 2014; 9:e102951. [PMID: 25036158 PMCID: PMC4103878 DOI: 10.1371/journal.pone.0102951] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Accepted: 06/24/2014] [Indexed: 01/19/2023] Open
Abstract
Acetoin (3-hydroxy-2-butanone), an extensively-used food spice and bio-based platform chemical, is usually produced by chemical synthesis methods. With increasingly requirement of food security and environmental protection, bio-fermentation of acetoin by microorganisms has a great promising market. However, through metabolic engineering strategies, the mixed acid-butanediol fermentation metabolizes a certain portion of substrate to the by-products of organic acids such as lactic acid and acetic acid, which causes energy cost and increases the difficulty of product purification in downstream processes. In this work, due to the high efficiency of enzymatic reaction and excellent selectivity, a strategy for efficiently converting 2,3-butandiol to acetoin using whole-cell biocatalyst by engineered Bacillus subtilis is proposed. In this process, NAD+ plays a significant role on 2,3-butanediol and acetoin distribution, so the NADH oxidase and 2,3-butanediol dehydrogenase both from B. subtilis are co-expressed in B. subtilis 168 to construct an NAD+ regeneration system, which forces dramatic decrease of the intracellular NADH concentration (1.6 fold) and NADH/NAD+ ratio (2.2 fold). By optimization of the enzymatic reaction and applying repeated batch conversion, the whole-cell biocatalyst efficiently produced 91.8 g/L acetoin with a productivity of 2.30 g/(L·h), which was the highest record ever reported by biocatalysis. This work indicated that manipulation of the intracellular cofactor levels was more effective than the strategy of enhancing enzyme activity, and the bioprocess for NAD+ regeneration may also be a useful way for improving the productivity of NAD+-dependent chemistry-based products.
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Chen XH, Wei P, Wang XT, Zong MH, Lou WY. A novel carbonyl reductase with anti-Prelog stereospecificity from Acetobacter sp. CCTCC M209061: purification and characterization. PLoS One 2014; 9:e94543. [PMID: 24740089 PMCID: PMC3989197 DOI: 10.1371/journal.pone.0094543] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2013] [Accepted: 03/18/2014] [Indexed: 11/20/2022] Open
Abstract
A novel carbonyl reductase (AcCR) catalyzing the asymmetric reduction of ketones to enantiopure alcohols with anti-Prelog stereoselectivity was found in Acetobacter sp. CCTCC M209061 and enriched 27.5-fold with an overall yield of 0.4% by purification. The enzyme showed a homotetrameric structure with an apparent molecular mass of 104 kDa and each subunit of 27 kDa. The gene sequence of AcCR was cloned and sequenced, and a 762 bp gene fragment was obtained. Either NAD(H) or NADP(H) can be used as coenzyme. For the reduction of 4'-chloroacetophenone, the Km value for NADH was around 25-fold greater than that for NADPH (0.66 mM vs 0.026 mM), showing that AcCR preferred NADPH over NADH. However, when NADH was used as cofactor, the response of AcCR activity to increasing concentration of 4'-chloroacetophenone was clearly sigmoidal with a Hill coefficient of 3.1, suggesting that the enzyme might possess four substrate-binding sites cooperating with each other The Vmax value for NADH-linked reduction was higher than that for NADPH-linked reduction (0.21 mM/min vs 0.17 mM/min). For the oxidation of isopropanol, the similar enzymological properties of AcCR were found using NAD+ or NADP+ as cofactor. Furthermore, a broad range of ketones such as aryl ketones, α-ketoesters and aliphatic ketones could be enantioselectively reduced into the corresponding chiral alcohols by this enzyme with high activity.
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Affiliation(s)
- Xiao-Hong Chen
- Lab of Applied Biocatalysis, College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, Guangdong, China
| | - Ping Wei
- Lab of Applied Biocatalysis, College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, Guangdong, China
| | - Xiao-Ting Wang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong, China
| | - Min-Hua Zong
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong, China
| | - Wen-Yong Lou
- Lab of Applied Biocatalysis, College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, Guangdong, China
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong, China
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Wang X, Lv M, Zhang L, Li K, Gao C, Ma C, Xu P. Efficient bioconversion of 2,3-butanediol into acetoin using Gluconobacter oxydans DSM 2003. BIOTECHNOLOGY FOR BIOFUELS 2013; 6:155. [PMID: 24176113 PMCID: PMC4177140 DOI: 10.1186/1754-6834-6-155] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2013] [Accepted: 10/22/2013] [Indexed: 06/02/2023]
Abstract
BACKGROUND 2,3-Butanediol is a platform and fuel biochemical that can be efficiently produced from biomass. However, a value-added process for this chemical has not yet been developed. To expand the utilization of 2,3-butanediol produced from biomass, an improved derivative process of 2,3-butanediol is desirable. RESULTS In this study, a Gluconobacter oxydans strain DSM 2003 was found to have the ability to transform 2,3-butanediol into acetoin, a high value feedstock that can be widely used in dairy and cosmetic products, and chemical synthesis. All three stereoisomers, meso-2,3-butanediol, (2R,3R)-2,3-butanediol, and (2S,3S)-2,3-butanediol, could be transformed into acetoin by the strain. After optimization of the bioconversion conditions, the optimum growth temperature for acetoin production by strain DSM 2003 was found to be 30°C and the medium pH was 6.0. With an initial 2,3-butanediol concentration of 40 g/L, acetoin at a high concentration of 89.2 g/L was obtained from 2,3-butanediol by fed-batch bioconversion with a high productivity (1.24 g/L · h) and high yield (0.912 mol/mol). CONCLUSIONS G. oxydans DSM 2003 is the first strain that can be used in the direct production of acetoin from 2,3-butanediol. The product concentration and yield of the novel process are both new records for acetoin production. The results demonstrate that the method developed in this study could provide a promising process for efficient acetoin production and industrially produced 2,3-butanediol utilization.
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Affiliation(s)
- Xiuqing Wang
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, People’s Republic of China
| | - Min Lv
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, People’s Republic of China
| | - Lijie Zhang
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, People’s Republic of China
| | - Kun Li
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, People’s Republic of China
| | - Chao Gao
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, People’s Republic of China
| | - Cuiqing Ma
- State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, People’s Republic of China
| | - Ping Xu
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
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