1
|
Tang J, Wang J, Gong P, Zhang H, Zhang M, Qi C, Chen G, Wang C, Chen W. Biosynthesis and Biotechnological Synthesis of Hydroxytyrosol. Foods 2024; 13:1694. [PMID: 38890922 PMCID: PMC11171820 DOI: 10.3390/foods13111694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/21/2024] [Accepted: 05/25/2024] [Indexed: 06/20/2024] Open
Abstract
Hydroxytyrosol (HT), a plant-derived phenolic compound, is recognized for its potent antioxidant capabilities alongside a spectrum of pharmacological benefits, including anti-inflammatory, anti-cancer, anti-bacterial, and anti-viral properties. These attributes have propelled HT into the spotlight as a premier nutraceutical and food additive, heralding a new era in health and wellness applications. Traditional methods for HT production, encompassing physico-chemical techniques and plant extraction, are increasingly being supplanted by biotechnological approaches. These modern methodologies offer several advantages, notably environmental sustainability, safety, and cost-effectiveness, which align with current demands for green and efficient production processes. This review delves into the biosynthetic pathways of HT, highlighting the enzymatic steps involved and the pivotal role of genetic and metabolic engineering in enhancing HT yield. It also surveys the latest progress in the biotechnological synthesis of HT, examining innovative strategies that leverage both genetically modified and non-modified organisms. Furthermore, this review explores the burgeoning potential of HT as a nutraceutical, underscoring its diverse applications and the implications for human health. Through a detailed examination of both the biosynthesis and biotechnological advances in HT production, this review contributes valuable insights to the field, charting a course towards the sustainable and scalable production of this multifaceted compound.
Collapse
Affiliation(s)
- Jiali Tang
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China; (J.T.); (J.W.); (P.G.); (H.Z.); (M.Z.); (C.W.)
| | - Jiaying Wang
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China; (J.T.); (J.W.); (P.G.); (H.Z.); (M.Z.); (C.W.)
| | - Pengfei Gong
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China; (J.T.); (J.W.); (P.G.); (H.Z.); (M.Z.); (C.W.)
| | - Haijing Zhang
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China; (J.T.); (J.W.); (P.G.); (H.Z.); (M.Z.); (C.W.)
| | - Mengyao Zhang
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China; (J.T.); (J.W.); (P.G.); (H.Z.); (M.Z.); (C.W.)
| | - Chenchen Qi
- ACK Co., Ltd., Urumqi 830022, China; (C.Q.); (G.C.)
| | - Guohui Chen
- ACK Co., Ltd., Urumqi 830022, China; (C.Q.); (G.C.)
| | - Chengtao Wang
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China; (J.T.); (J.W.); (P.G.); (H.Z.); (M.Z.); (C.W.)
| | - Wei Chen
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China; (J.T.); (J.W.); (P.G.); (H.Z.); (M.Z.); (C.W.)
| |
Collapse
|
2
|
Molnár Z, Koplányi G, Farkas R, Péli N, Kenéz B, Decsi B, Katona G, Balogh GT, Vértessy BG, Balogh-Weiser D. Immobilization of human tyrosine hydroxylase onto magnetic nanoparticles - A novel formulation of a therapeutic enzyme. Int J Biol Macromol 2024; 268:131939. [PMID: 38692555 DOI: 10.1016/j.ijbiomac.2024.131939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 04/17/2024] [Accepted: 04/26/2024] [Indexed: 05/03/2024]
Abstract
Human tyrosine hydroxylase (hTH) has key role in the production of catecholamine neurotransmitters. The structure, function and regulation of hTH has been extensively researched area and the possibility of enzyme replacement therapy (ERT) involving hTH through nanocarriers has been raised as well. However, our understanding on how hTH may interact with nanocarriers is still lacking. In this work, we attempted to investigate the immobilization of hTH on magnetic nanoparticles (MNPs) with various surface linkers in quantitative and mechanistic detail. Our results showed that the activity of hTH was retained after immobilization via secondary and covalent interactions as well. The colloidal stability of hTH could be also enhanced proved by Dynamic light scattering and Zeta potential analysis and a homogenous enzyme layer could be achieved, which was investigated by Raman mapping. The covalent attachment of hTH on MNPs via aldehyde or epoxy linkers provide irreversible immobilization and 38.1 % and 16.5 % recovery (ER). The hTH-MNPs catalyst had 25 % ER in average in simulated nasal electrolyte solution (SNES). This outcome highlights the relevance of immobilization applying MNPs as a potential formulation tool of sensitive therapeutic enzymes offering new opportunities for ERT related to neurodegenerative disorders.
Collapse
Affiliation(s)
- Zsófia Molnár
- Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary; Institue of Enzymology, Research Center of Natural Science, Eötvös Loránd Research Network, Magyar tudósok körútja 2., H-1117 Budapest, Hungary
| | - Gábor Koplányi
- Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
| | - Réka Farkas
- Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
| | - Noémi Péli
- Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
| | - Balázs Kenéz
- Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
| | - Balázs Decsi
- Department of Chemical and Environmental Process Engineering, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
| | - Gábor Katona
- Institute of Pharmaceutical Technology and Regulatory Affairs, Faculty of Pharmacy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary
| | - György T Balogh
- Department of Chemical and Environmental Process Engineering, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary; Department of Pharmaceutical Chemistry, Semmelweis University, Hőgyes E. Street 7-9, H-1092 Budapest, Hungary
| | - Beáta G Vértessy
- Institue of Enzymology, Research Center of Natural Science, Eötvös Loránd Research Network, Magyar tudósok körútja 2., H-1117 Budapest, Hungary; Department Applied Biotechnology and Food Science, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
| | - Diána Balogh-Weiser
- Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary; Department of Physical Chemistry and Materials Science, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary.
| |
Collapse
|
3
|
Yu J, Xie J, Sun M, Xiong S, Xu C, Zhang Z, Li M, Li C, Lin L. Plant-Derived Caffeic Acid and Its Derivatives: An Overview of Their NMR Data and Biosynthetic Pathways. Molecules 2024; 29:1625. [PMID: 38611904 PMCID: PMC11013677 DOI: 10.3390/molecules29071625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 03/31/2024] [Accepted: 04/01/2024] [Indexed: 04/14/2024] Open
Abstract
In recent years, caffeic acid and its derivatives have received increasing attention due to their obvious physiological activities and wide distribution in nature. In this paper, to clarify the status of research on plant-derived caffeic acid and its derivatives, nuclear magnetic resonance spectroscopy data and possible biosynthetic pathways of these compounds were collected from scientific databases (SciFinder, PubMed and China Knowledge). According to different types of substituents, 17 caffeic acid and its derivatives can be divided into the following classes: caffeoyl ester derivatives, caffeyltartaric acid, caffeic acid amide derivatives, caffeoyl shikimic acid, caffeoyl quinic acid, caffeoyl danshens and caffeoyl glycoside. Generalization of their 13C-NMR and 1H-NMR data revealed that acylation with caffeic acid to form esters involves acylation shifts, which increase the chemical shift values of the corresponding carbons and decrease the chemical shift values of the corresponding carbons of caffeoyl. Once the hydroxyl group is ester, the hydrogen signal connected to the same carbon shifts to the low field (1.1~1.6). The biosynthetic pathways were summarized, and it was found that caffeic acid and its derivatives are first synthesized in plants through the shikimic acid pathway, in which phenylalanine is deaminated to cinnamic acid and then transformed into caffeic acid and its derivatives. The purpose of this review is to provide a reference for further research on the rapid structural identification and biofabrication of caffeic acid and its derivatives.
Collapse
Affiliation(s)
- Jiahui Yu
- Key Laboratory for Quality Evaluation of Bulk Herbs of Human Province, School of Pharmacy, Human University of Chinese Medicine, Changsha 410208, China; (J.Y.); (J.X.); (M.S.); (S.X.); (C.X.); (Z.Z.); (M.L.)
| | - Jingchen Xie
- Key Laboratory for Quality Evaluation of Bulk Herbs of Human Province, School of Pharmacy, Human University of Chinese Medicine, Changsha 410208, China; (J.Y.); (J.X.); (M.S.); (S.X.); (C.X.); (Z.Z.); (M.L.)
| | - Miao Sun
- Key Laboratory for Quality Evaluation of Bulk Herbs of Human Province, School of Pharmacy, Human University of Chinese Medicine, Changsha 410208, China; (J.Y.); (J.X.); (M.S.); (S.X.); (C.X.); (Z.Z.); (M.L.)
| | - Suhui Xiong
- Key Laboratory for Quality Evaluation of Bulk Herbs of Human Province, School of Pharmacy, Human University of Chinese Medicine, Changsha 410208, China; (J.Y.); (J.X.); (M.S.); (S.X.); (C.X.); (Z.Z.); (M.L.)
| | - Chunfang Xu
- Key Laboratory for Quality Evaluation of Bulk Herbs of Human Province, School of Pharmacy, Human University of Chinese Medicine, Changsha 410208, China; (J.Y.); (J.X.); (M.S.); (S.X.); (C.X.); (Z.Z.); (M.L.)
| | - Zhimin Zhang
- Key Laboratory for Quality Evaluation of Bulk Herbs of Human Province, School of Pharmacy, Human University of Chinese Medicine, Changsha 410208, China; (J.Y.); (J.X.); (M.S.); (S.X.); (C.X.); (Z.Z.); (M.L.)
| | - Minjie Li
- Key Laboratory for Quality Evaluation of Bulk Herbs of Human Province, School of Pharmacy, Human University of Chinese Medicine, Changsha 410208, China; (J.Y.); (J.X.); (M.S.); (S.X.); (C.X.); (Z.Z.); (M.L.)
| | - Chun Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China;
| | - Limei Lin
- Key Laboratory for Quality Evaluation of Bulk Herbs of Human Province, School of Pharmacy, Human University of Chinese Medicine, Changsha 410208, China; (J.Y.); (J.X.); (M.S.); (S.X.); (C.X.); (Z.Z.); (M.L.)
| |
Collapse
|
4
|
Rautela A, Yadav I, Gangwar A, Chatterjee R, Kumar S. Photosynthetic production of α-farnesene by engineered Synechococcus elongatus UTEX 2973 from carbon dioxide. BIORESOURCE TECHNOLOGY 2024; 396:130432. [PMID: 38346593 DOI: 10.1016/j.biortech.2024.130432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/16/2024]
Abstract
Cyanobacteria are the prospective biosolar cell factories to produce a range of bioproducts through CO2 sequestration. Farnesene is a sesquiterpene with an array of applications in biofuels, pest management, cosmetics, flavours and fragrances. This is the first time a codon-optimized farnesene synthase (AFS) gene is engineered into the genomic neutral site of Synechococcus elongatus UTEX 2973 for farnesene synthesis through its endogenous methylerythritol phosphate (MEP) pathway, rendering UTEX AFS strain. Similarly, bottleneck gene(s) of the MEP pathway, 1-deoxy-D-xylulose-5-phosphate synthase (dxs) and/or fusion of isopentenyl diphosphate isomerase and farnesyl diphosphate synthase (idispA) were engineered engendering UTEX AFS::dxs, UTEX AFS::idispA and UTEX AFS::dxs::idispA strains. UTEX AFS::dxs::idispA achieves farnesene productivity of 2.57 mg/L/day, the highest among engineered cyanobacterial strains studied so far. It demonstrates farnesene production, which is 31.3-times higher than the UTEX AFS strain. Moreover, the engineered strains show similar productivity over a three-month period, stipulating the genetic stability of the strains.
Collapse
Affiliation(s)
- Akhil Rautela
- Biofuel Research Laboratory, School of Biochemical Engineering, IIT(BHU) Varanasi, Varanasi 221005, Uttar Pradesh, India
| | - Indrajeet Yadav
- Biofuel Research Laboratory, School of Biochemical Engineering, IIT(BHU) Varanasi, Varanasi 221005, Uttar Pradesh, India
| | - Agendra Gangwar
- Biofuel Research Laboratory, School of Biochemical Engineering, IIT(BHU) Varanasi, Varanasi 221005, Uttar Pradesh, India
| | - Rishika Chatterjee
- Biofuel Research Laboratory, School of Biochemical Engineering, IIT(BHU) Varanasi, Varanasi 221005, Uttar Pradesh, India
| | - Sanjay Kumar
- Biofuel Research Laboratory, School of Biochemical Engineering, IIT(BHU) Varanasi, Varanasi 221005, Uttar Pradesh, India.
| |
Collapse
|
5
|
Shen N, Satoh Y, Koma D, Ohashi H, Ogasawara Y, Dairi T. Optimization of tyrosol-producing pathway with tyrosine decarboxylase and tyramine oxidase in high-tyrosine-producing Escherichia coli. J Biosci Bioeng 2024; 137:115-123. [PMID: 38135638 DOI: 10.1016/j.jbiosc.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 11/29/2023] [Accepted: 12/03/2023] [Indexed: 12/24/2023]
Abstract
Tyrosol (4-hydroxyphenylethanol) is a phenolic compound used in the pharmaceutical and chemical industries. However, current supply methods, such as extraction from natural resources and chemical synthesis, have disadvantages from the viewpoint of cost and environmental protection. Here, we developed a tyrosol-producing Escherichia coli cell factory from a high-tyrosine-producing strain by expressing selected tyrosine decarboxylase-, tyramine oxidase (TYO)-, and medium-chain dehydrogenase/reductase (YahK)-encoding genes. The genes were controlled by the strong T7 promoter and integrated into the chromosome because of the advantages over plasmid-based systems. The strain produced a melanin-like pigment as a by-product, which is suggested to be formed from 4-hydroxyphenylacetaldehyde (a TYO product/YahK substrate). By using a culture medium containing a high concentration of glycerol, which was reported to enhance NADH supply required for YahK activity, the final titer of tyrosol reached 2.42 g/L in test tube-scale cultivation with a concomitant decrease in the amount of pigment. These results indicate that chromosomally integrated and T7 promoter-controlled gene expression system in E. coli is useful for high production of heterologous enzymes and might be applied for industrial production of useful compounds including tyrosine and tyrosol.
Collapse
Affiliation(s)
- Ning Shen
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Yasuharu Satoh
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan.
| | - Daisuke Koma
- Osaka Research Institute of Industrial Science and Technology, Osaka 536-8553, Japan
| | - Hiroyuki Ohashi
- Osaka Research Institute of Industrial Science and Technology, Osaka 536-8553, Japan
| | - Yasushi Ogasawara
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Tohru Dairi
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| |
Collapse
|
6
|
Simos YV, Zerikiotis S, Lekkas P, Zachariou C, Halabalaki M, Ververidis F, Trantas EA, Tsamis K, Peschos D, Angelidis C, Vezyraki P. Hydroxytyrosol produced by engineered Escherichia coli strains activates Nrf2/HO-1 pathway: An in vitro and in vivo study. Exp Biol Med (Maywood) 2023; 248:1598-1612. [PMID: 37691393 PMCID: PMC10676126 DOI: 10.1177/15353702231187647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 06/05/2023] [Indexed: 09/12/2023] Open
Abstract
This study explores the biological effects of hydroxytyrosol (HT), produced by the metabolic engineering of Escherichia coli, in a series of in vitro and in vivo experiments. In particular, a metabolically engineered Escherichia coli strain capable of producing HT was constructed and utilized. HEK293 and HeLa cells were exposed to purified HT to determine non-toxic doses that can offer protection against oxidative stress (activation of Nrf2/HO-1 signaling pathway). Male CD-1 mice were orally supplemented with HT to evaluate (1) renal and hepatic toxicity, (2) endogenous system antioxidant response, and (3) activation of Nrf2/HO-1 system in the liver. HT protected cells from oxidative stress through the activation of Nrf2 regulatory network. Activation of Nrf2 signaling pathway was also observed in the hepatic tissue of the mice. HT supplementation was safe and produced differential effects on mice's endogenous antioxidant defense system. HT biosynthesized from genetically modified Escherichia coli strains is an alternative method to produce high-quality HT that exerts favorable effects in the regulation of the organism's response to oxidative stress. Nonetheless, further investigation of the multifactorial action of HT on the antioxidant network regulation is needed.
Collapse
Affiliation(s)
- Yannis V Simos
- Laboratory of Physiology, Department of Medicine, School of Health Sciences, University of Ioannina, Ioannina 45110, Greece
| | - Stelios Zerikiotis
- Laboratory of Physiology, Department of Medicine, School of Health Sciences, University of Ioannina, Ioannina 45110, Greece
| | - Panagiotis Lekkas
- Laboratory of Physiology, Department of Medicine, School of Health Sciences, University of Ioannina, Ioannina 45110, Greece
| | - Christianna Zachariou
- Laboratory of Physiology, Department of Medicine, School of Health Sciences, University of Ioannina, Ioannina 45110, Greece
| | - Maria Halabalaki
- Division of Pharmacognosy and Natural Products Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimioupoli Zografou, Athens 11527, Greece
| | - Filippos Ververidis
- Laboratory of Biological and Biotechnological Applications, Department of Agriculture, School of Agricultural Sciences, Hellenic Mediterranean University, Estavromenos, Heraklion 71410, Crete, Greece
- Agri-Food and Life Sciences Institute, Research Center of the Hellenic Mediterranean University, Estavromenos, Heraklion 71410, Crete, Greece
| | - Emmanouil A Trantas
- Laboratory of Biological and Biotechnological Applications, Department of Agriculture, School of Agricultural Sciences, Hellenic Mediterranean University, Estavromenos, Heraklion 71410, Crete, Greece
- Agri-Food and Life Sciences Institute, Research Center of the Hellenic Mediterranean University, Estavromenos, Heraklion 71410, Crete, Greece
| | - Konstantinos Tsamis
- Laboratory of Physiology, Department of Medicine, School of Health Sciences, University of Ioannina, Ioannina 45110, Greece
| | - Dimitrios Peschos
- Laboratory of Physiology, Department of Medicine, School of Health Sciences, University of Ioannina, Ioannina 45110, Greece
| | - Charalampos Angelidis
- Department of Biology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina 45110, Greece
| | - Patra Vezyraki
- Laboratory of Physiology, Department of Medicine, School of Health Sciences, University of Ioannina, Ioannina 45110, Greece
| |
Collapse
|
7
|
Satoh Y, Fukui K, Koma D, Shen N, Lee TS. Engineered Escherichia coli platforms for tyrosine-derivative production from phenylalanine using phenylalanine hydroxylase and tetrahydrobiopterin-regeneration system. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:115. [PMID: 37464414 DOI: 10.1186/s13068-023-02365-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 07/02/2023] [Indexed: 07/20/2023]
Abstract
BACKGROUND Aromatic compounds derived from tyrosine are important and diverse chemicals that have industrial and commercial applications. Although these aromatic compounds can be obtained by extraction from natural producers, their growth is slow, and their content is low. To overcome these problems, many of them have been chemically synthesized from petroleum-based feedstocks. However, because of the environmental burden and depleting availability of feedstock, microbial cell factories are attracting much attention as sustainable and environmentally friendly processes. RESULTS To facilitate development of microbial cell factories for producing tyrosine derivatives, we developed simple and convenient tyrosine-producing Escherichia coli platforms with a bacterial phenylalanine hydroxylase, which converted phenylalanine to tyrosine with tetrahydromonapterin as a cofactor, using a synthetic biology approach. By introducing a tetrahydrobiopterin-regeneration system, the tyrosine titer of the plasmid-based engineered strain was 4.63 g/L in a medium supplemented with 5.00 g/L phenylalanine with a test tube. The strains were successfully used to produce industrially attractive compounds, such as tyrosol with a yield of 1.58 g/L by installing a tyrosol-producing module consisting of genes encoding tyrosine decarboxylase and tyramine oxidase on a plasmid. Gene integration into E. coli chromosomes has an advantage over the use of plasmids because it increases genetic stability without antibiotic feeding to the culture media and enables more flexible pathway engineering by accepting more plasmids with artificial pathway genes. Therefore, we constructed a plasmid-free tyrosine-producing platform by integrating five modules, comprising genes encoding the phenylalanine hydroxylase and tetrahydrobiopterin-regeneration system, into the chromosome. The platform strain could produce 1.04 g/L of 3,4-dihydroxyphenylalanine, a drug medicine, by installing a gene encoding tyrosine hydroxylase and the tetrahydrobiopterin-regeneration system on a plasmid. Moreover, by installing the tyrosol-producing module, tyrosol was produced with a yield of 1.28 g/L. CONCLUSIONS We developed novel E. coli platforms for producing tyrosine from phenylalanine at multi-gram-per-liter levels in test-tube cultivation. The platforms allowed development and evaluation of microbial cell factories installing various designed tyrosine-derivative biosynthetic pathways at multi-grams-per-liter levels in test tubes.
Collapse
Affiliation(s)
- Yasuharu Satoh
- Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan.
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, 060-8628, Japan.
| | - Keita Fukui
- Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc., Kanagawa, 210-8681, Japan
| | - Daisuke Koma
- Osaka Research Institute of Industrial Science and Technology, Osaka, 536-8553, Japan
| | - Ning Shen
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Taek Soon Lee
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| |
Collapse
|
8
|
Tan Z, Li J, Hou J, Gonzalez R. Designing artificial pathways for improving chemical production. Biotechnol Adv 2023; 64:108119. [PMID: 36764336 DOI: 10.1016/j.biotechadv.2023.108119] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023]
Abstract
Metabolic engineering exploits manipulation of catalytic and regulatory elements to improve a specific function of the host cell, often the synthesis of interesting chemicals. Although naturally occurring pathways are significant resources for metabolic engineering, these pathways are frequently inefficient and suffer from a series of inherent drawbacks. Designing artificial pathways in a rational manner provides a promising alternative for chemicals production. However, the entry barrier of designing artificial pathway is relatively high, which requires researchers a comprehensive and deep understanding of physical, chemical and biological principles. On the other hand, the designed artificial pathways frequently suffer from low efficiencies, which impair their further applications in host cells. Here, we illustrate the concept and basic workflow of retrobiosynthesis in designing artificial pathways, as well as the most currently used methods including the knowledge- and computer-based approaches. Then, we discuss how to obtain desired enzymes for novel biochemistries, and how to trim the initially designed artificial pathways for further improving their functionalities. Finally, we summarize the current applications of artificial pathways from feedstocks utilization to various products synthesis, as well as our future perspectives on designing artificial pathways.
Collapse
Affiliation(s)
- Zaigao Tan
- State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China; School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China; Department of Bioengineering, Shanghai Jiao Tong University, Shanghai, China.
| | - Jian Li
- State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China; School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China; Department of Bioengineering, Shanghai Jiao Tong University, Shanghai, China
| | - Jin Hou
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Ramon Gonzalez
- Department of Chemical, Biological, and Materials Engineering, University of South Florida, Tampa, FL, USA.
| |
Collapse
|
9
|
Qi L, Liu C, Peplowski L, Shen W, Yang H, Xia Y, Chen X. Efficient production of hydroxytyrosol by directed evolution of HpaB in Escherichia coli. Biochem Biophys Res Commun 2023; 663:16-24. [PMID: 37116393 DOI: 10.1016/j.bbrc.2023.04.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 04/11/2023] [Indexed: 04/30/2023]
Abstract
Hydroxytyrosol (HT) is an olive-derived phenolic phytochemical that has gained increasing commercial interest due to its natural antioxidant properties. It is widely used in the field of food supplement and medicine. It is reported that 4-hydroxyphenylacetate 3-hydroxylase (EcHpaB) and flavin reductase (EcHpaC) from E. coli BL21(DE3) can successfully express and catalyze the production of HT from tyrosol. In this study, the tyrosol production strain YMG5∗R as chassis cells, and a random mutant library of EcHpaB was established using error-prone PCR to improve the ability of EcHpaB to convert tyrosol to HT. Finally, a highly efficient HT synthetic mutant strainYMG5∗R-HpaBTLEHC with high transformation efficiency was screened by directed evolution. The YMG5∗R-HpaBTLEHC strain efficiently converted 50 mM tyrosol, with a yield of hydroxytyrosol reaching 48.2 mM (7.43 g/L) and a space-time yield reached 0.62 g/L·h. Overall, our study demonstrates the successful development of a highly efficient synthetic enzyme mutant for the production of HT, which has the potential to significantly improve the commercial viability of this natural antioxidant.
Collapse
Affiliation(s)
- Lina Qi
- Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, China; School of Biotechnology, Jiangnan University, Wuxi, China
| | - Chunxiao Liu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, China; School of Biotechnology, Jiangnan University, Wuxi, China
| | - Lukasz Peplowski
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Torun, Poland
| | - Wei Shen
- Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, China; School of Biotechnology, Jiangnan University, Wuxi, China
| | - Haiquan Yang
- Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, China; School of Biotechnology, Jiangnan University, Wuxi, China
| | - Yuanyuan Xia
- Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, China; School of Biotechnology, Jiangnan University, Wuxi, China.
| | - Xianzhong Chen
- Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, China; School of Biotechnology, Jiangnan University, Wuxi, China.
| |
Collapse
|
10
|
Gong P, Tang J, Wang J, Wang C, Chen W. A Novel Microbial Consortia Catalysis Strategy for the Production of Hydroxytyrosol from Tyrosine. Int J Mol Sci 2023; 24:ijms24086944. [PMID: 37108108 PMCID: PMC10139182 DOI: 10.3390/ijms24086944] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
Hydroxytyrosol, a valuable plant-derived phenolic compound, is increasingly produced from microbial fermentation. However, the promiscuity of the key enzyme HpaBC, the two-component flavin-dependent monooxygenase from Escherichia coli, often leads to low yields. To address this limitation, we developed a novel strategy utilizing microbial consortia catalysis for hydroxytyrosol production. We designed a biosynthetic pathway using tyrosine as the substrate and selected enzymes and overexpressing glutamate dehydrogenase GdhA to realize the cofactor cycling by coupling reactions catalyzed by the transaminase and the reductase. Additionally, the biosynthetic pathway was divided into two parts and performed by separate E. coli strains. Furthermore, we optimized the inoculation time, strain ratio, and pH to maximize the hydroxytyrosol yield. Glycerol and ascorbic acid were added to the co-culture, resulting in a 92% increase in hydroxytyrosol yield. Using this approach, the production of 9.2 mM hydroxytyrosol was achieved from 10 mM tyrosine. This study presents a practical approach for the microbial production of hydroxytyrosol that can be promoted to produce other value-added compounds.
Collapse
Affiliation(s)
- Pengfei Gong
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Jiali Tang
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Jiaying Wang
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Chengtao Wang
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Wei Chen
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| |
Collapse
|
11
|
Chen C, Tang W, Chen Q, Han M, Shang Q, Liu W. Biomimetic synthesis of hydroxytyrosol from conversion of tyrosol by mimicking tyrosine hydroxylase. J Biol Inorg Chem 2023; 28:379-391. [PMID: 37017773 DOI: 10.1007/s00775-023-01996-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 03/07/2023] [Indexed: 04/06/2023]
Abstract
Hydroxytyrosol, one of the most powerful natural antioxidants, exhibits certificated benefits for human health. In this study, a biomimetic approach to synthesize hydroxytyrosol from the hydroxylation of tyrosol was established. EDTA-Fe2+ coordination complex served as an active center to simulate tyrosine hydroxylase. H2O2 and ascorbic acid were used as oxygen donor and hydrogen donor, respectively. Hydroxy radical and singlet oxygen contributed to active species. The biomimetic system displayed analogous component, structure, and activity with TyrH. Hydroxytyrosol titer of 21.59 mM, and productivity of 9985.92 mg·L-1·h-1 was achieved with 100 mM tyrosol as substrate. The proposed approach provided efficient and convenient route to quickly produce high amount of hydroxytyrosol.
Collapse
Affiliation(s)
- Chan Chen
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
| | - Weikang Tang
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
| | - Qinfei Chen
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
| | - Mengqi Han
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
| | - Qi Shang
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
| | - Wenbin Liu
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu, 610065, China.
| |
Collapse
|
12
|
Liu H, Wu X, Ma H, Li J, Liu Z, Guo X, Dong J, Zou S, Luo Y. High-Level Production of Hydroxytyrosol in Engineered Saccharomyces cerevisiae. ACS Synth Biol 2022; 11:3706-3713. [PMID: 36345886 DOI: 10.1021/acssynbio.2c00316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Hydroxytyrosol (HT) is a valuable aromatic compound with numerous applications. Herein, we enabled the efficient and scalable de novo HT production in engineered Saccharomyces cerevisiae (S. cerevisiae) from glucose. Starting from a tyrosol-overproducing strain, six HpaB/HpaC combinations were investigated, and the best catalytic performance was acquired with HpaB from Pseudomonas aeruginosa (PaHpaB) and HpaC from Escherichia coli (EcHpaC), resulting in 425.7 mg/L HT in shake flasks. Next, weakening the tryptophan biosynthetic pathway through downregulating the expression of TRP2 (encoding anthranilate synthase) further improved the HT titer by 27.2% compared to the base strain. Moreover, the cytosolic NADH supply was improved through introducing the feedback-resistant mutant of the TyrA (the NAD+-dependent chorismate mutase/prephenate dehydrogenase, TyrA*) from E. coli, which further increased the HT titer by 36.9% compared to the base strain. The best performing strain was obtained by optimizing the biosynthesis of HT in S. cerevisiae through a screening for an effective HpaB/HpaC combination, biosynthetic flux rewiring, and cofactor engineering, which enabled the titer of HT reaching 1120.0 mg/L in the shake flask. Finally, the engineered strain produced 6.97 g/L of HT by fed-batch fermentation, which represents the highest titer for de novo HT biosynthesis in microorganisms reported to date.
Collapse
Affiliation(s)
- Huayi Liu
- Frontiers Science Center of Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Xinxin Wu
- Frontiers Science Center of Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - He Ma
- Frontiers Science Center of Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Jian Li
- Frontiers Science Center of Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Zhenyu Liu
- Frontiers Science Center of Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Xufan Guo
- Frontiers Science Center of Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Jia Dong
- Frontiers Science Center of Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Shaolan Zou
- Frontiers Science Center of Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Yunzi Luo
- Frontiers Science Center of Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| |
Collapse
|
13
|
Huo J, Bai Y, Fan TP, Zheng X, Cai Y. Hydroxytyrosol production from l-DOPA by engineered Escherichia coli co-expressing l-amino acid deaminase, α-keto acid decarboxylase, aldehyde reductase and glucose dehydrogenase with NADH regeneration. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
14
|
Liu Y, Song D, Hu H, Yang R, Lyu X. De Novo Production of Hydroxytyrosol by Saccharomyces cerevisiae-Escherichia coli Coculture Engineering. ACS Synth Biol 2022; 11:3067-3077. [PMID: 35952699 DOI: 10.1021/acssynbio.2c00300] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Hydroxytyrosol is a valuable plant-derived phenolic compound with excellent pharmacological activities for application in the food and health care industries. Microbial biosynthesis provides a promising approach for sustainable production of hydroxytyrosol via metabolic engineering. However, its efficient production is limited by the machinery and resources available in the commonly used individual microbial platform, for example, Escherichia coli, Saccharomyces cerevisiae. In this study, a S. cerevisiae-E. coli coculture system was designed for de novo biosynthesis of hydroxytyrosol by taking advantage of their inherent metabolic properties, whereby S. cerevisiae was engineered for de novo production of tyrosol based on an endogenous Ehrlich pathway, and E. coli was dedicated to converting tyrosol to hydroxytyrosol by use of native hydroxyphenylacetate 3-monooxygenase (EcHpaBC). To enhance hydroxytyrosol production, intra- and intermodule engineering was employed in this microbial consortium: (I) in the upstream S. cerevisiae strain, multipath regulations combining with a glucose-sensitive GAL regulation system were engineered to enhance the precursor supply, resulting in significant increase of tyrosol production (from 17.60 mg/L to 461.07 mg/L); (II) Echpabc was overexpressed in the downstream E. coli strain, improving the conversion rate of tyrosol to hydroxytyrosol from 0.03% to 86.02%; (III) and last, intermodule engineering with this coculture system was performed by optimization of the initial inoculation ratio of each population and fermentation conditions, achieving 435.32 mg/L of hydroxytyrosol. This S. cerevisiae-E. coli coculture strategy provides a new opportunity for de novo production of hydroxytyrosol from inexpensive feedstock.
Collapse
Affiliation(s)
- Yingjie Liu
- School of Food Science and Technology, Jiangnan University, 214122, Wuxi, P. R. China
| | - Dong Song
- Jiangxi Baiyue Food Co. Ltd, Pingxiang, Jiangxi 337000, P. R. China
| | - Haitao Hu
- School of Food Science and Technology, Jiangnan University, 214122, Wuxi, P. R. China
| | - Ruijin Yang
- School of Food Science and Technology, Jiangnan University, 214122, Wuxi, P. R. China.,Jiangnan University (Rugao) Institute of Food Biotechnology, 226503, Nantong, P. R. China
| | - Xiaomei Lyu
- School of Food Science and Technology, Jiangnan University, 214122, Wuxi, P. R. China.,Jiangnan University (Rugao) Institute of Food Biotechnology, 226503, Nantong, P. R. China
| |
Collapse
|
15
|
Han SW, Shin JS. Aromatic L-amino acid decarboxylases: mechanistic features and microbial applications. Appl Microbiol Biotechnol 2022; 106:4445-4458. [DOI: 10.1007/s00253-022-12028-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/04/2022] [Accepted: 06/10/2022] [Indexed: 11/02/2022]
|
16
|
Liu Y, Liu H, Hu H, Ng KR, Yang R, Lyu X. De Novo Production of Hydroxytyrosol by Metabolic Engineering of Saccharomyces cerevisiae. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:7490-7499. [PMID: 35649155 DOI: 10.1021/acs.jafc.2c02137] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Hydroxytyrosol is an olive-derived phenolic compound of increasing commercial interest due to its health-promoting properties. In this study, a high-yield hydroxytyrosol-producing Saccharomyces cerevisiae cell factory was established via a comprehensive metabolic engineering scheme. First, de novo biosynthetic pathway of hydroxytyrosol was constructed in yeast by gene screening and overexpression of different phenol hydroxylases, among which paHD (from Pseudomonas aeruginosa) displayed the best catalytic performance. Next, hydroxytyrosol precursor supply was enhanced via a multimodular engineering approach: elimination of tyrosine feedback inhibition through genomic integration of aro4K229L and aro7G141S, construction of an aromatic aldehyde synthase (AAS)-based tyrosine metabolic pathway, and redistribution of metabolic flux between glycolytic pathway and pentose phosphate pathway (PPP) by introducing the exogenous gene Bbxfpkopt. As a result, the titer of hydroxytyrosol was improved by 6.88-fold. Finally, a glucose-responsive dynamic regulation system based on GAL80 deletion was implemented, resulting in the final hydroxytyrosol yields of 308.65 mg/L and 167.98 mg/g cell mass, the highest known from de novo production in S. cerevisiae to date.
Collapse
Affiliation(s)
- Yingjie Liu
- School of Food Science and Technology, Jiangnan University, 214122 Wuxi, China
| | - Han Liu
- School of Food Science and Technology, Jiangnan University, 214122 Wuxi, China
| | - Haitao Hu
- School of Food Science and Technology, Jiangnan University, 214122 Wuxi, China
| | - Kuan Rei Ng
- Food Science and Technology Programme, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
| | - Ruijin Yang
- School of Food Science and Technology, Jiangnan University, 214122 Wuxi, China
| | - Xiaomei Lyu
- School of Food Science and Technology, Jiangnan University, 214122 Wuxi, China
| |
Collapse
|
17
|
Biosynthesizing structurally diverse diols via a general route combining oxidative and reductive formations of OH-groups. Nat Commun 2022; 13:1595. [PMID: 35332143 PMCID: PMC8948231 DOI: 10.1038/s41467-022-29216-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 03/02/2022] [Indexed: 11/09/2022] Open
Abstract
Diols encompass important bulk and fine chemicals for the chemical, pharmaceutical and cosmetic industries. During the past decades, biological production of C3-C5 diols from renewable feedstocks has received great interest. Here, we elaborate a general principle for effectively synthesizing structurally diverse diols by expanding amino acid metabolism. Specifically, we propose to combine oxidative and reductive formations of hydroxyl groups from amino acids in a thermodynamically favorable order of four reactions catalyzed by amino acid hydroxylase, L-amino acid deaminase, α-keto acid decarboxylase and aldehyde reductase consecutively. The oxidative formation of hydroxyl group from an alkyl group is energetically more attractive than the reductive pathway, which is exclusively used in the synthetic pathways of diols reported so far. We demonstrate this general route for microbial production of branched-chain diols in E. coli. Ten C3-C5 diols are synthesized. Six of them, namely isopentyldiol (IPDO), 2-methyl-1,3-butanediol (2-M-1,3-BDO), 2-methyl-1,4-butanediol (2-M-1,4-BDO), 2-methyl-1,3-propanediol (MPO), 2-ethyl-1,3-propanediol (2-E-1,3-PDO), 1,4-pentanediol (1,4-PTD), have not been biologically synthesized before. This work opens up opportunities for synthesizing structurally diverse diols and triols, especially by genome mining, rational design or directed evolution of proper enzymes. Diols are important bulk and fine chemicals, but bioproduciton of branch-chain diols is hampered by the unknown biological route. Here, the authors report the expanding of amino acid metabolism for biosynthesis of branch-chain diols via a general route of combined oxidative and reductive formations of hydroxyl groups.
Collapse
|
18
|
Xu Y, Li Y, Wu Z, Lu Y, Tao G, Zhang L, Ding Z, Shi G. Combining Precursor-Directed Engineering with Modular Designing: An Effective Strategy for De Novo Biosynthesis of l-DOPA in Bacillus licheniformis. ACS Synth Biol 2022; 11:700-712. [PMID: 35076224 DOI: 10.1021/acssynbio.1c00411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
3-Hydroxy-l-tyrosine (l-DOPA) is a promising drug for treating Parkinson's disease. Tyrosine hydroxylase catalyzes the microbial synthesis of l-DOPA, which is hindered by the efficiency of catalysis, the supply of cofactor tetrahydrobiopterin, and the regulation of the pathway. In this study, the modular engineering strategy in Bacillus licheniformis was identified to effectively enhance l-DOPA production. First, the catalytic efficiency of biocatalyst tyrosine hydroxylase from Streptosporangium roseum DSM 43021 (SrTH) was improved by 20.3% by strengthening its affinity toward tetrahydrobiopterin. Second, the tetrahydrobiopterin supply pool was increased by bottleneck gene expression, oxygen transport facilitation, budC (encoding meso-2,3-butanediol dehydrogenase) deletion, and tetrahydrobiopterin regeneration using a native YfkO nitroreductase. The strain 45ABvC successfully produced tetrahydrobiopterin, which was detected as pterin (112.48 mg/L), the oxidation product of tetrahydrobiopterin. Finally, the yield of precursor l-tyrosine reached 148 mg/gDCW, with an increase of 71%, with the deletion of a novel spliced transcript 41sRNA associated with the regulation of the shikimate pathway. The engineered strain 45ABvCS::PD produced 167.14 mg/L (2.41 times of wild-type strain) and 1290 mg/L l-DOPA in a shake flask and a 15 L bioreactor, respectively, using a fermentation strategy on a mixture of carbon sources. This study holds great potential for constructing a microbial source of l-DOPA and its high-value downstream pharmaceuticals.
Collapse
Affiliation(s)
- Yinbiao Xu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, People’s Republic of China
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, People’s Republic of China
- Engineering Research Center for Applied Microbiology of Henan Province, School of Life Sciences, Henan University, Kaifeng 475004, People’s Republic of China
- Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, People’s Republic of China
| | - Youran Li
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, People’s Republic of China
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, People’s Republic of China
- Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, People’s Republic of China
| | - Zhiyong Wu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, People’s Republic of China
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, People’s Republic of China
- Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, People’s Republic of China
| | - Yiming Lu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, People’s Republic of China
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, People’s Republic of China
- Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, People’s Republic of China
| | - Guanjun Tao
- State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, People’s Republic of China
| | - Liang Zhang
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, People’s Republic of China
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, People’s Republic of China
- Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, People’s Republic of China
| | - Zhongyang Ding
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, People’s Republic of China
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, People’s Republic of China
- Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, People’s Republic of China
| | - Guiyang Shi
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, People’s Republic of China
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, People’s Republic of China
- Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu Province 214122, People’s Republic of China
| |
Collapse
|
19
|
Correa-Aragunde N, Nejamkin A, Del Castello F, Foresi N, Lamattina L. Nitric oxide synthases from photosynthetic organisms improve growth and confer nitrosative stress tolerance in E. coli. Insights on the pterin cofactor. Nitric Oxide 2022; 119:41-49. [PMID: 34942379 DOI: 10.1016/j.niox.2021.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 12/01/2021] [Accepted: 12/17/2021] [Indexed: 11/28/2022]
Abstract
Nitric oxide synthase (NOS) catalyzes NO formation from the substrate l-arginine (Arg). Previously, NOS with distinct biochemical properties were characterized from two photosynthetic microorganisms, the unicellular algae Ostreococcus tauri (OtNOS) and the cyanobacteria Synechococcus PCC 7335 (SyNOS). In this work we studied the effect of recombinant OtNOS and SyNOS expressed under IPTG-induced promoter in E. coli, a bacterium that lacks NOS. Results show that OtNOS and SyNOS expression promote E. coli growth in a nutrient replete medium and allow to better metabolize Arg as N source. In LB medium, OtNOS induces the expression of the NO dioxygenase hmp in E. coli, in accordance with high NO levels visualized with the probe DAF-FM DA. In contrast, SyNOS expression does not induce hmp and show a slight increase of NO production compared to OtNOS. NOS expression reduces ROS production and increases viability of E. coli cultures growing in LB. A strong nitrosative stress provoked by the addition of 1 mM of the NO donors sodium nitroprusside (SNP) and nitrosoglutathione (GSNO) inhibits bacterial growth rate. Under these conditions, the expression of OtNOS or SyNOS counteracts NO donor toxicity restoring bacterial growth. Finally, using bioinformatic tools and ligand docking analyses, we postulate that tetrahydromonapterin (MH4), an endogenous pterin found in E. coli, could act as cofactor required for NOS catalytic activity. Our findings could be useful for the development of biotechnological applications using NOS expression to improve growth in NOS-lacking bacteria.
Collapse
Affiliation(s)
- Natalia Correa-Aragunde
- Instituto de Investigaciones Biológicas-CONICET, Universidad Nacional de Mar del Plata, CC1245, Mar del Plata, Argentina.
| | - Andrés Nejamkin
- Instituto de Investigaciones Biológicas-CONICET, Universidad Nacional de Mar del Plata, CC1245, Mar del Plata, Argentina
| | - Fiorella Del Castello
- Instituto de Investigaciones Biológicas-CONICET, Universidad Nacional de Mar del Plata, CC1245, Mar del Plata, Argentina
| | - Noelia Foresi
- Instituto de Investigaciones Biológicas-CONICET, Universidad Nacional de Mar del Plata, CC1245, Mar del Plata, Argentina
| | - Lorenzo Lamattina
- Instituto de Investigaciones Biológicas-CONICET, Universidad Nacional de Mar del Plata, CC1245, Mar del Plata, Argentina.
| |
Collapse
|
20
|
Chen Y, Loredo A, Chung A, Zhang M, Liu R, Xiao H. Biosynthesis and Genetic Incorporation of 3,4-Dihydroxy-L-Phenylalanine into Proteins in Escherichia coli. J Mol Biol 2021; 434:167412. [PMID: 34942167 PMCID: PMC9018569 DOI: 10.1016/j.jmb.2021.167412] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 12/13/2021] [Accepted: 12/15/2021] [Indexed: 11/28/2022]
Abstract
While 20 canonical amino acids are used by most organisms for protein synthesis, the creation of cells that can use noncanonical amino acids (ncAAs) as additional protein building blocks holds great promise for preparing novel medicines and for studying complex questions in biological systems. However, only a small number of biosynthetic pathways for ncAAs have been reported to date, greatly restricting our ability to generate cells with ncAA building blocks. In this study, we report the creation of a completely autonomous bacterium that utilizes 3,4-dihydroxy-L-phenylalanine (DOPA) as its 21st amino acid building block. Like canonical amino acids, DOPA can be biosynthesized without exogenous addition and can be genetically incorporated into proteins in a site-specific manner. Equally important, the protein production yield of DOPA-containing proteins from these autonomous cells is greater than that of cells exogenously fed with 9 mM DOPA. The unique catechol moiety of DOPA can be used as a versatile handle for site-specific protein functionalizations via either oxidative coupling or strain-promoted oxidation-controlled cyclooctyne-1,2-quinone (SPOCQ) cycloaddition reactions. We further demonstrate the use of these autonomous cells in preparing fluorophore-labeled anti-human epidermal growth factor 2 (HER2) antibodies for the detection of HER2 expression on cancer cells.
Collapse
Affiliation(s)
- Yuda Chen
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas, 77005
| | - Axel Loredo
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas, 77005
| | - Anna Chung
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas, 77005
| | - Mengxi Zhang
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas, 77005
| | - Rui Liu
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas, 77005
| | - Han Xiao
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas, 77005; Department of Biosciences, Rice University, 6100 Main Street, Houston, Texas, 77005; Department of Bioengineering, Rice University, 6100 Main Street, Houston, Texas, 77005.
| |
Collapse
|
21
|
Nakagawa A, Nakamura S, Matsumura E, Yashima Y, Takao M, Aburatani S, Yaoi K, Katayama T, Minami H. Selection of the optimal tyrosine hydroxylation enzyme for (S)-reticuline production in Escherichia coli. Appl Microbiol Biotechnol 2021; 105:5433-5447. [PMID: 34181032 DOI: 10.1007/s00253-021-11401-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 05/31/2021] [Accepted: 06/08/2021] [Indexed: 10/21/2022]
Abstract
We have constructed an Escherichia coli-based platform producing (S)-reticuline, an important intermediate of benzylisoquinoline alkaloids (BIAs), using up to 14 genes. (S)-reticuline was produced from a simple carbon source such as glucose and glycerol via L-DOPA, which is synthesized by hydroxylation of L-tyrosine, one of the rate-limiting steps of the reaction. There are three kinds of enzymes catalyzing tyrosine hydroxylation: tyrosinase (TYR), tyrosine hydroxylase (TH), and 4-hydroxyphenylacetate 3-monooxygenase (HpaBC). Here, to further improve (S)-reticuline production, we chose eight from these three kinds of tyrosine hydroxylation enzymes (two TYRs, four THs, and two HpaBCs) derived from various organisms, and examined which enzyme was optimal for (S)-reticuline production in E. coli. TH from Drosophila melanogaster was the most suitable for (S)-reticuline production under the experimental conditions tested. We improved the productivity by genome integration of a gene set for L-tyrosine overproduction, introducing the regeneration pathway of BH4, a cofactor of TH, and methionine addition to enhance the S-adenosylmethionine supply. As a result, the yield of (S)-reticuline reached up to 384 μM from glucose in laboratory-scale shake flask. Furthermore, we found three inconsistent phenomena: an inhibitory effect due to additional gene expression, conflicts among the experimental conditions, and interference of an upstream enzyme from an additional downstream enzyme. Based on these results, we discuss future perspectives and challenges of integrating multiple enzyme genes for material production using microbes. Graphical abstract The optimal tyrosine hydroxylation enzyme for (S)-reticuline production in Escherichia coli KEY POINTS: • There are three types of enzymes catalyzing tyrosine hydroxylation reaction: tyrosinase, tyrosine hydroxylase, and 4-hydroxyphenylacetate 3-monooxygenase. • Tyrosine hydroxylase from Drosophila melanogaster exhibited the highest activity and was suitable for (S)-reticuline production in E. coli. • New insights were provided on constructing an alkaloid production system with multi-step reactions in E. coli.
Collapse
Affiliation(s)
- Akira Nakagawa
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, 1-308 Suematsu, Nonoichi-shi, Ishikawa, Japan
| | - Shinya Nakamura
- TechnoPro, Inc., Roppongi Hills Mori Tower 35th floor, 6-10-1 Roppongi, Minatoku, Tokyo, Japan
| | - Eitaro Matsumura
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, 1-308 Suematsu, Nonoichi-shi, Ishikawa, Japan
| | - Yurino Yashima
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, 1-308 Suematsu, Nonoichi-shi, Ishikawa, Japan
| | - Mizuki Takao
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, 1-308 Suematsu, Nonoichi-shi, Ishikawa, Japan
| | - Sachiyo Aburatani
- Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology, Tokyo, Japan
| | - Katsuro Yaoi
- Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology, Tokyo, Japan
| | - Takane Katayama
- Graduate School of Biostudies, Kyoto University, Kyoto, 606-8502, Japan
| | - Hiromichi Minami
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, 1-308 Suematsu, Nonoichi-shi, Ishikawa, Japan.
| |
Collapse
|
22
|
Sun X, Li X, Shen X, Wang J, Yuan Q. Recent advances in microbial production of phenolic compounds. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
23
|
Xu Y, Li Y, Li L, Zhang L, Ding Z, Shi G. Reductase-catalyzed tetrahydrobiopterin regeneration alleviates the anti-competitive inhibition of tyrosine hydroxylation by 7,8-dihydrobiopterin. Catal Sci Technol 2021. [DOI: 10.1039/d0cy01958e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
l-Tyrosine hydroxylation by tyrosine hydroxylase is a significant reaction for preparing many nutraceutical and pharmaceutical chemicals.
Collapse
Affiliation(s)
- Yinbiao Xu
- Key Laboratory of Industrial Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
- Wuxi
| | - Youran Li
- Key Laboratory of Industrial Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
- Wuxi
| | - Leyun Li
- Key Laboratory of Industrial Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
- Wuxi
| | - Liang Zhang
- Key Laboratory of Industrial Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
- Wuxi
| | - Zhongyang Ding
- Key Laboratory of Industrial Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
- Wuxi
| | - Guiyang Shi
- Key Laboratory of Industrial Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
- Wuxi
| |
Collapse
|
24
|
Sun L, Xin F, Alper HS. Bio-synthesis of food additives and colorants-a growing trend in future food. Biotechnol Adv 2021; 47:107694. [PMID: 33388370 DOI: 10.1016/j.biotechadv.2020.107694] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 12/24/2020] [Accepted: 12/27/2020] [Indexed: 02/07/2023]
Abstract
Food additives and colorants are extensively used in the food industry to improve food quality and safety during processing, storage and packing. Sourcing of these molecules is predominately through three means: extraction from natural sources, chemical synthesis, and bio-production, with the first two being the most utilized. However, growing demands for sustainability, safety and "natural" products have renewed interest in using bio-based production methods. Likewise, the move to more cultured foods and meat alternatives requires the production of new additives and colorants. The production of bio-based food additives and colorants is an interdisciplinary research endeavor and represents a growing trend in future food. To highlight the potential of microbial hosts for food additive and colorant production, we focus on current advances for example molecules based on their utilization stage and bio-production yield as follows: (I) approved and industrially produced with high titers; (II) approved and produced with decent titers (in the g/L range), but requiring further engineering to reduce production costs; (III) approved and produced with very early stage titers (in the mg/L range); and (IV) new/potential candidates that have not been approved but can be sourced through microbes. Promising approaches, as well as current challenges and future directions will also be thoroughly discussed for the bioproduction of these food additives and colorants.
Collapse
Affiliation(s)
- Lichao Sun
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China.
| | - Fengjiao Xin
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China.
| | - Hal S Alper
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, 2500 Speedway Avenue, Austin, TX 78712, United States; McKetta Department of Chemical Engineering, The University of Texas at Austin, 200 E Dean Keeton St. Stop C0400, Austin, TX 78712, United States.
| |
Collapse
|
25
|
A bi-enzymatic cascade to yield pyruvate as co-substrate for l-tyrosine production. Appl Microbiol Biotechnol 2020; 104:10005-10018. [DOI: 10.1007/s00253-020-10975-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 10/07/2020] [Accepted: 10/25/2020] [Indexed: 11/25/2022]
|
26
|
Chen Y, Tang J, Wang L, Tian Z, Cardenas A, Fang X, Chatterjee A, Xiao H. Creation of Bacterial cells with 5-Hydroxytryptophan as a 21 st Amino Acid Building Block. Chem 2020; 6:2717-2727. [PMID: 33102928 DOI: 10.1016/j.chempr.2020.07.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
While most organisms utilize 20 canonical amino acid building blocks for protein synthesis, adding additional candidates to the amino acid repertoire can greatly facilitate the investigation and manipulation of protein structures and functions. In this study, we report the generation of completely autonomous organisms with a 21st ncAA, 5-hydroxytryptophan (5HTP). Like 20 canonical amino acids, 5-hydroxytryptophan can be biosynthesized in vivo from simple carbon sources and is subsequently incorporated into proteins in response to the amber stop codon. Using this unnatural organism, we have prepared a single-chain immunoglobulin variable fragment conjugated with a fluorophore and demonstrated the utility of these autonomous cells to monitor oxidative stress. Creation of this and other cells containing the 21st amino acid will provide an opportunity to generate proteins and organisms with novel activities, as well as to determine the evolutionary consequences of using additional amino acid buildings.
Collapse
Affiliation(s)
- Yuda Chen
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas, 77005. U.S.A
| | - Juan Tang
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas, 77005. U.S.A
| | - Lushun Wang
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas, 77005. U.S.A
| | - Zeru Tian
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas, 77005. U.S.A
| | - Adam Cardenas
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas, 77005. U.S.A
| | - Xinlei Fang
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas, 77005. U.S.A
| | - Abhishek Chatterjee
- Department of Chemistry, Boston College, 2609 Beacon Street, 246B Merkert Chemistry Center, Chestnut Hill, MA, 02467, U.S.A
| | - Han Xiao
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas, 77005. U.S.A.,Department of Biosciences, Rice University, 6100 Main Street, Houston, Texas, 77005, U.S.A.,Department of Bioengineering, Rice University, 6100 Main Street, Houston, Texas, 77005, U.S.A.,Lead Contact
| |
Collapse
|
27
|
Zeng B, Lai Y, Liu L, Cheng J, Zhang Y, Yuan J. Engineering Escherichia coli for High-Yielding Hydroxytyrosol Synthesis from Biobased l-Tyrosine. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:7691-7696. [PMID: 32578426 DOI: 10.1021/acs.jafc.0c03065] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hydroxytyrosol (HT) is a natural antioxidant with many associated health benefits. In this study, we established efficient enzymatic cascades for the synthesis of HT from biobased l-tyrosine. First, a dopamine-mediated route for HT production was investigated. The combination of native hydroxylase (HpaBC) from Escherichia coli and l-DOPA decarboxylase (DODC) from Pseudomonas putida could efficiently convert 5 mM l-tyrosine into dopamine with conversion above 90%. However, further incorporation of monoamine oxidase (MAO) from Micrococcus luteus and phenylacetaldehyde reductase (PAR) from Solanum lycopersicum only resulted in 3.47 mM HT with 69.4% conversion. Therefore, a second enzyme cascade that comprises HpaBC from E. coli, l-amino acid deaminase (LAAD) from Proteus mirabilis, α-keto acid decarboxylase (ARO10) from Saccharomyces cerevisiae, and PAR from S. lycopersicum was designed. This enzymatic route showed higher catalytic activity and efficiently synthesized HT. The 24.27 mM HT was obtained from 25 mM l-tyrosine with a high conversion of 97.1%, and 32.35 mM HT was produced using 50 mM l-tyrosine, which represents the highest HT titer using l-tyrosine as a substrate reported to date. In summary, we have developed a green and sustainable platform for efficient HT enzymatic synthesis.
Collapse
Affiliation(s)
- Baiyun Zeng
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Fujian 361102, China
| | - Yumeng Lai
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Fujian 361102, China
| | - Lijun Liu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Fujian 361102, China
| | - Jie Cheng
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Fujian 361102, P. R. China
| | - Yang Zhang
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Fujian 361102, China
| | - Jifeng Yuan
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Fujian 361102, China
| |
Collapse
|
28
|
Delivery Systems for Hydroxytyrosol Supplementation: State of the Art. COLLOIDS AND INTERFACES 2020. [DOI: 10.3390/colloids4020025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This review aims to highlight the benefits and limitations of the main colloid-based available delivery systems for hydroxytyrosol. Hydroxytyrosol is a phenolic compound with clear biological activities for human wellness. Olive fruits, leaves and extra-virgin oil are the main food sources of hydroxytyrosol. Moreover, olive oil mill wastewaters are considered a potential source to obtain hydroxytyrosol to use in the food industry. However, recovered hydroxytyrosol needs adequate formulations and delivery systems to increase its chemical stability and bioavailability. Therefore, the application of hydroxytyrosol delivery systems in food sector is still a fascinating challenge. Principal delivery systems are based on the use of colloids, polymers able to perform gelling, thickening and stabilizing functions in various industrial sectors, including food manufacturing. Here, we review the recipes for the available hydroxytyrosol systems and their relative production methods, as well as aspects relative to system characteristics and hydroxytyrosol effectiveness.
Collapse
|
29
|
Half-Preparative Scale Synthesis of (S)-1-Phenylethane-1,2-Diol as a Result of 2-Phenylethanol Hydroxylation with Aspergillus niger (IAFB 2301) Assistance. Symmetry (Basel) 2020. [DOI: 10.3390/sym12060989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Aspergillus niger (IAFB 2301) was employed for bioconversions of 2-phenylethanol as an immobilized or free mycelium and also as a spore suspension. Experiments were conducted on laboratory and half-preparative scale (bioreactor New Brunswick Scientific, BioFlo Model C32). Thus, A. niger applied as free mycelium, depending on the outcome, supported formation of the mixture of 4-hydroxyphenylacetic acid and hydroxytyrosol (final concentration of 13.8 mg/L and 3.7% efficiency) or 4-hydroxyphenylacetic acid, as single product (final concentration of 140 mg/L and 18% efficiency). In case of scaling experiments conducted with flow and batch reactors, accordingly, the following results were achieved: 1. mixture of antioxidants 4-hydroxyphenylacetic acid and hydroxytyrosol formed with final concentration of 76 mg/L and 10% efficiency (simplified flow system and immobilized mycelium); 2. (S)-1-phenylethane-1,2-diol synthesized with a final concentration of 447 mg/L and 65% (1.3 L batch reactor).
Collapse
|
30
|
Yao J, He Y, Su N, Bharath SR, Tao Y, Jin JM, Chen W, Song H, Tang SY. Developing a highly efficient hydroxytyrosol whole-cell catalyst by de-bottlenecking rate-limiting steps. Nat Commun 2020; 11:1515. [PMID: 32251291 PMCID: PMC7090077 DOI: 10.1038/s41467-020-14918-5] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 02/11/2020] [Indexed: 01/18/2023] Open
Abstract
Hydroxytyrosol is an antioxidant free radical scavenger that is biosynthesized from tyrosine. In metabolic engineering efforts, the use of the mouse tyrosine hydroxylase limits its production. Here, we design an efficient whole-cell catalyst of hydroxytyrosol in Escherichia coli by de-bottlenecking two rate-limiting enzymatic steps. First, we replace the mouse tyrosine hydroxylase by an engineered two-component flavin-dependent monooxygenase HpaBC of E. coli through structure-guided modeling and directed evolution. Next, we elucidate the structure of the Corynebacterium glutamicum VanR regulatory protein complexed with its inducer vanillic acid. By switching its induction specificity from vanillic acid to hydroxytyrosol, VanR is engineered into a hydroxytyrosol biosensor. Then, with this biosensor, we use in vivo-directed evolution to optimize the activity of tyramine oxidase (TYO), the second rate-limiting enzyme in hydroxytyrosol biosynthesis. The final strain reaches a 95% conversion rate of tyrosine. This study demonstrates the effectiveness of sequentially de-bottlenecking rate-limiting steps for whole-cell catalyst development. Whole-cell catalyst-based hydroxytyrosol production is low. Here, the authors increase the efficiency of its production in E. coli by de-bottlenecking two enzymatic steps catalyzed by monooxygenase and tyramine oxidase using structure-based enzyme redesign or in vivo-directed evolution with the aid of a newly developed biosensor.
Collapse
Affiliation(s)
- Jun Yao
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yang He
- Institute of Molecular and Cell Biology, 61 Biopolis Drive, Singapore, Singapore
| | - Nannan Su
- Institute of Molecular and Cell Biology, 61 Biopolis Drive, Singapore, Singapore
| | | | - Yong Tao
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Jian-Ming Jin
- Beijing Key Laboratory of Plant Resources Research and Development, Beijing Technology and Business University, Beijing, China.
| | - Wei Chen
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.
| | - Haiwei Song
- Institute of Molecular and Cell Biology, 61 Biopolis Drive, Singapore, Singapore.
| | - Shuang-Yan Tang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.
| |
Collapse
|
31
|
Luo H, Yang L, Kim SH, Wulff T, Feist AM, Herrgard M, Palsson BØ. Directed Metabolic Pathway Evolution Enables Functional Pterin-Dependent Aromatic-Amino-Acid Hydroxylation in Escherichia coli. ACS Synth Biol 2020; 9:494-499. [PMID: 32149495 DOI: 10.1021/acssynbio.9b00488] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Tetrahydrobiopterin-dependent hydroxylation of aromatic amino acids is the first step in the biosynthesis of many neuroactive compounds in humans. A fundamental challenge in building these pathways in Escherichia coli is the provision of the non-native hydroxylase cofactor, tetrahydrobiopterin. To solve this, we designed a genetic selection that relies on the tyrosine synthesis activity of phenylalanine hydroxylase. Using adaptive laboratory evolution, we demonstrate the use of this selection to discover: (1) a minimum set of heterologous enzymes and a host folE (T198I) mutation for achieving this type of hydroxylation chemistry in whole cells, (2) functional complementation of tetrahydrobiopterin by indigenous cofactors, and (3) a tryptophan hydroxylase mutation for improving protein abundance. Thus, the goal of having functional aromatic-amino-acid hydroxylation in E. coli was achieved through directed metabolic pathway evolution.
Collapse
Affiliation(s)
- Hao Luo
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby 2800, Denmark
| | - Lei Yang
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby 2800, Denmark
| | - Se Hyeuk Kim
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby 2800, Denmark
| | - Tune Wulff
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby 2800, Denmark
| | - Adam M Feist
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby 2800, Denmark
- Department of Bioengineering, University of California, San Diego, La Jolla, California 92093, United States of America
| | - Markus Herrgard
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby 2800, Denmark
| | - Bernhard Ø Palsson
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby 2800, Denmark
- Department of Bioengineering, University of California, San Diego, La Jolla, California 92093, United States of America
- Department of Pediatrics, University of California, San Diego, La Jolla, California 92093, United States of America
| |
Collapse
|
32
|
Han H, Zeng W, Du G, Chen J, Zhou J. Site-directed mutagenesis to improve the thermostability of tyrosine phenol-lyase. J Biotechnol 2020; 310:6-12. [PMID: 31926982 DOI: 10.1016/j.jbiotec.2020.01.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/16/2019] [Accepted: 01/09/2020] [Indexed: 12/29/2022]
Abstract
3,4-Dihydroxyphenyl-L-alanine (L-DOPA) is the most important antiparkinsonian drug, and tyrosine phenol-lyase (TPL)-based enzyme catalysis process is one of the most adopted methods on industrial scale production. TPL activity and stability represent the rate-limiting step in L-DOPA synthesis. Here, 25 TPL mutants were predicted, and two were confirmed as exhibiting the highest L-DOPA production and named E313W and E313M. The L-DOPA production from E313W and E313M was 47.5 g/L and 62.1 g/L, which was 110.2 % and 174.8 % higher, respectively, than that observed from wild-type (WT) TPL. The Km of E313W and E313M showed no apparent decrease, whereas the kcat of E313W and E313M improved by 45.5 % and 36.4 %, respectively, relative to WT TPL. Additionally, E313W and E313M displayed improved thermostability, a higher melting temperature, and enhanced affinity between for pyridoxal-5'-phosphate. Structural analysis of the mutants suggested increased stability of the N-terminal region via enhanced interactions between the mutated residues and H317. Application of these mutants in a substrate fed-batch strategy as whole-cell biocatalysts allows realization of a cost-efficient short fermentation period resulting in high L-DOPA yield.
Collapse
Affiliation(s)
- Hongmei Han
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Weizhu Zeng
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China; Jiangsu Provisional Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Guocheng Du
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China; The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Jian Chen
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Jingwen Zhou
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China; Jiangsu Provisional Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China.
| |
Collapse
|
33
|
Trantas E, Navakoudis E, Pavlidis T, Nikou T, Halabalaki M, Skaltsounis L, Ververidis F. Dual pathway for metabolic engineering of Escherichia coli to produce the highly valuable hydroxytyrosol. PLoS One 2019; 14:e0212243. [PMID: 31682615 PMCID: PMC6828502 DOI: 10.1371/journal.pone.0212243] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 10/02/2019] [Indexed: 11/24/2022] Open
Abstract
One of the most abundant phenolic compounds traced in olive tissues is hydroxytyrosol (HT), a molecule that has been attributed with a pile of beneficial effects, well documented by many epidemiological studies and thus adding value to products containing it. Strong antioxidant capacity and protection from cancer are only some of its exceptional features making it ideal as a potential supplement or preservative to be employed in the nutraceutical, agrochemical, cosmeceutical, and food industry. The HT biosynthetic pathway in plants (e.g. olive fruit tissues) is not well apprehended yet. In this contribution we employed a metabolic engineering strategy by constructing a dual pathway introduced in Escherichia coli and proofing its significant functionality leading it to produce HT. Our primary target was to investigate whether such a metabolic engineering approach could benefit the metabolic flow of tyrosine introduced to the conceived dual pathway, leading to the maximalization of the HT productivity. Various gene combinations derived from plants or bacteria were used to form a newly inspired, artificial biosynthetic dual pathway managing to redirect the carbon flow towards the production of HT directly from glucose. Various biosynthetic bottlenecks faced due to feaB gene function, resolved through the overexpression of a functional aldehyde reductase. Currently, we have achieved equimolar concentration of HT to tyrosine as precursor when overproduced straight from glucose, reaching the level of 1.76 mM (270.8 mg/L) analyzed by LC-HRMS. This work realizes the existing bottlenecks of the metabolic engineering process that was dependent on the utilized host strain, growth medium as well as to other factors studied in this work.
Collapse
Affiliation(s)
- Emmanouil Trantas
- Plant Biochemistry and Biotechnology Group, Laboratory of Biological and Biotechnological Applications, Department of Agriculture, School of Agricultural Sciences, Hellenic Mediterranean University, Heraklion, Greece
- * E-mail: (FV); (ET)
| | - Eleni Navakoudis
- Plant Biochemistry and Biotechnology Group, Laboratory of Biological and Biotechnological Applications, Department of Agriculture, School of Agricultural Sciences, Hellenic Mediterranean University, Heraklion, Greece
| | - Theofilos Pavlidis
- Plant Biochemistry and Biotechnology Group, Laboratory of Biological and Biotechnological Applications, Department of Agriculture, School of Agricultural Sciences, Hellenic Mediterranean University, Heraklion, Greece
| | - Theodora Nikou
- Division of Pharmacognosy and Natural Product Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens, Greece
| | - Maria Halabalaki
- Division of Pharmacognosy and Natural Product Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens, Greece
| | - Leandros Skaltsounis
- Division of Pharmacognosy and Natural Product Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, Athens, Greece
| | - Filippos Ververidis
- Plant Biochemistry and Biotechnology Group, Laboratory of Biological and Biotechnological Applications, Department of Agriculture, School of Agricultural Sciences, Hellenic Mediterranean University, Heraklion, Greece
- * E-mail: (FV); (ET)
| |
Collapse
|
34
|
Guodong R, Jianguo Z, Xiaoxia L, Ying L. Identification of putative genes for polyphenol biosynthesis in olive fruits and leaves using full-length transcriptome sequencing. Food Chem 2019; 300:125246. [PMID: 31357017 DOI: 10.1016/j.foodchem.2019.125246] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 07/22/2019] [Accepted: 07/23/2019] [Indexed: 10/26/2022]
Abstract
Olive (Olea europaea) is a rich source of valuable bioactive polyphenols, which has attracted widespread interest. In this study, we combined targeted metabolome, Pacbio ISOseq transcriptome, and Illumina RNA-seq transcriptome to investigate the association between polyphenols and gene expression in the developing olive fruits and leaves. A total of 12 main polyphenols were measured, and 122 transcripts of 17 gene families, 101 transcripts of 9 gene families, and 106 transcripts of 6 gene families that encode for enzymes involved in flavonoid, oleuropein, and hydroxytyrosol biosynthesis were separately identified. Additionally, 232 alternative splicing events of 18 genes related to polyphenol synthesis were analyzed. This is the first time that the third generations of full-length transcriptome technology were used to study the gene expression pattern of olive fruits and leaves. The results of transcriptome combined with targeted metabolome can help us better understand the polyphenol biosynthesis pathways in the olive.
Collapse
Affiliation(s)
- Rao Guodong
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China.
| | - Zhang Jianguo
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China; Collaborative Innovation Center of Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China.
| | - Liu Xiaoxia
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| | - Luo Ying
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| |
Collapse
|
35
|
Li C, Jia P, Bai Y, Fan TP, Zheng X, Cai Y. Efficient Synthesis of Hydroxytyrosol from l-3,4-Dihydroxyphenylalanine Using Engineered Escherichia coli Whole Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:6867-6873. [PMID: 31134807 DOI: 10.1021/acs.jafc.9b01856] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hydroxytyrosol is a high-value-added compound with a variety of biological and pharmacological activities. In this study, a whole-cell catalytic method for the synthesis of hydroxytyrosol was developed: aromatic amino acid aminotransferase (TyrB), l-glutamate dehydrogenase (GDH), α-keto acid decarboxylase (PmKDC), and aldehyde reductase (YahK) were co-expressed in Escherichia coli to catalyze the synthesis of hydroxytyrosol from l-3,4-dihydroxyphenylalanine (l-DOPA). The plasmids with different copy numbers were used to balance the expression of the four enzymes, and the most appropriate strain (pRSF- yahK- tyrB and pCDF- gdh- Pmkdc) was identified. After determination of the optimum temperature (35 °C) and pH (7.5) for whole-cell catalysis, the yield of hydroxytyrosol reached 36.33 mM (5.59 g/L) and the space-time yield reached 0.70 g L-1 h-1.
Collapse
Affiliation(s)
- Chaozhi Li
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology , Jiangnan University , 1800 Lihu Road , Wuxi , Jiangsu 214122 , People's Republic of China
| | - Pu Jia
- College of Life Sciences , Northwest University , Xi'an , Shaanxi 710069 , People's Republic of China
| | - Yajun Bai
- College of Life Sciences , Northwest University , Xi'an , Shaanxi 710069 , People's Republic of China
| | - Tai-Ping Fan
- Department of Pharmacology , University of Cambridge , Cambridge CB2 1PD , United Kingdom
| | - Xiaohui Zheng
- College of Life Sciences , Northwest University , Xi'an , Shaanxi 710069 , People's Republic of China
| | - Yujie Cai
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology , Jiangnan University , 1800 Lihu Road , Wuxi , Jiangsu 214122 , People's Republic of China
| |
Collapse
|
36
|
Britton J, Davis R, O'Connor KE. Chemical, physical and biotechnological approaches to the production of the potent antioxidant hydroxytyrosol. Appl Microbiol Biotechnol 2019; 103:5957-5974. [PMID: 31177312 DOI: 10.1007/s00253-019-09914-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 05/13/2019] [Accepted: 05/15/2019] [Indexed: 12/12/2022]
Abstract
Hydroxytyrosol (HT) is a polyphenol of interest to the food, feed, supplements and pharmaceutical sectors. It is one of the strongest known natural antioxidants and has been shown to confer other benefits such as anti-inflammatory and anti-carcinogenic properties, and it has the potential to act as a cardio- and neuroprotectant. It is known to be one of the compounds responsible for the health benefits of the Mediterranean diet. In nature, HT is found in the olive plant (Olea europaea) as part of the secoiridoid compound oleuropein, in its leaves, fruit, oil and oil production waste products. HT can be extracted from these olive sources, but it can also be produced by chemical synthesis or through the use of microorganisms. This review looks at the production of HT using plant extraction, chemical synthesis and biotechnological approaches.
Collapse
Affiliation(s)
- James Britton
- School of Biomolecular and Biomedical Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Reeta Davis
- School of Biomolecular and Biomedical Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Kevin E O'Connor
- School of Biomolecular and Biomedical Science, University College Dublin, Belfield, Dublin 4, Ireland. .,Beacon Bioeconomy Research Centre, University College Dublin, Belfield, Dublin 4, Ireland.
| |
Collapse
|
37
|
Chen W, Yao J, Meng J, Han W, Tao Y, Chen Y, Guo Y, Shi G, He Y, Jin JM, Tang SY. Promiscuous enzymatic activity-aided multiple-pathway network design for metabolic flux rearrangement in hydroxytyrosol biosynthesis. Nat Commun 2019; 10:960. [PMID: 30814511 PMCID: PMC6393456 DOI: 10.1038/s41467-019-08781-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 01/11/2019] [Indexed: 12/04/2022] Open
Abstract
Genetic diversity is a result of evolution, enabling multiple ways for one particular physiological activity. Here, we introduce this strategy into bioengineering. We design two hydroxytyrosol biosynthetic pathways using tyrosine as substrate. We show that the synthetic capacity is significantly improved when two pathways work simultaneously comparing to each individual pathway. Next, we engineer flavin-dependent monooxygenase HpaBC for tyrosol hydroxylase, tyramine hydroxylase, and promiscuous hydroxylase active on both tyrosol and tyramine using directed divergent evolution strategy. Then, the mutant HpaBCs are employed to catalyze two missing steps in the hydroxytyrosol biosynthetic pathways designed above. Our results demonstrate that the promiscuous tyrosol/tyramine hydroxylase can minimize the cell metabolic burden induced by protein overexpression and allow the biosynthetic carbon flow to be divided between two pathways. Thus, the efficiency of the hydroxytyrosol biosynthesis is significantly improved by rearranging the metabolic flux among multiple pathways.
Collapse
Affiliation(s)
- Wei Chen
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Jun Yao
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jie Meng
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Wenjing Han
- Beijing Key Laboratory of Plant Resources Research and Development, Beijing Technology and Business University, Beijing, China
| | - Yong Tao
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Yihua Chen
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yixin Guo
- Center for Drug Discovery & Technology Development of Yunnan Traditional Medicine, Yunnan Provincial Academy of Science and Technology, Kunming, China
| | - Guizhi Shi
- University of Chinese Academy of Sciences, Beijing, China
| | - Yang He
- Life Science Institute, Zhejiang University, Hangzhou, China.
| | - Jian-Ming Jin
- Beijing Key Laboratory of Plant Resources Research and Development, Beijing Technology and Business University, Beijing, China.
| | - Shuang-Yan Tang
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.
| |
Collapse
|
38
|
Huccetogullari D, Luo ZW, Lee SY. Metabolic engineering of microorganisms for production of aromatic compounds. Microb Cell Fact 2019; 18:41. [PMID: 30808357 PMCID: PMC6390333 DOI: 10.1186/s12934-019-1090-4] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 02/19/2019] [Indexed: 01/09/2023] Open
Abstract
Metabolic engineering has been enabling development of high performance microbial strains for the efficient production of natural and non-natural compounds from renewable non-food biomass. Even though microbial production of various chemicals has successfully been conducted and commercialized, there are still numerous chemicals and materials that await their efficient bio-based production. Aromatic chemicals, which are typically derived from benzene, toluene and xylene in petroleum industry, have been used in large amounts in various industries. Over the last three decades, many metabolically engineered microorganisms have been developed for the bio-based production of aromatic chemicals, many of which are derived from aromatic amino acid pathways. This review highlights the latest metabolic engineering strategies and tools applied to the biosynthesis of aromatic chemicals, many derived from shikimate and aromatic amino acids, including L-phenylalanine, L-tyrosine and L-tryptophan. It is expected that more and more engineered microorganisms capable of efficiently producing aromatic chemicals will be developed toward their industrial-scale production from renewable biomass.
Collapse
Affiliation(s)
- Damla Huccetogullari
- Metabolic and Biomolecular Engineering National Research Laboratory, Department of Chemical and Biomolecular Engineering (BK21 Plus Program) and Institute for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
- Systems Metabolic Engineering and Systems Healthcare Cross-Generation Collaborative Laboratory, KAIST, Daejeon, 34141, Republic of Korea
| | - Zi Wei Luo
- Metabolic and Biomolecular Engineering National Research Laboratory, Department of Chemical and Biomolecular Engineering (BK21 Plus Program) and Institute for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
- Systems Metabolic Engineering and Systems Healthcare Cross-Generation Collaborative Laboratory, KAIST, Daejeon, 34141, Republic of Korea
| | - Sang Yup Lee
- Metabolic and Biomolecular Engineering National Research Laboratory, Department of Chemical and Biomolecular Engineering (BK21 Plus Program) and Institute for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.
- Systems Metabolic Engineering and Systems Healthcare Cross-Generation Collaborative Laboratory, KAIST, Daejeon, 34141, Republic of Korea.
- BioProcess Engineering Research Center and Bioinformatics Research Center, KAIST, Daejeon, 34141, Republic of Korea.
| |
Collapse
|
39
|
Wang H, Liu W, Shi F, Huang L, Lian J, Qu L, Cai J, Xu Z. Metabolic pathway engineering for high-level production of 5-hydroxytryptophan in Escherichia coli. Metab Eng 2018; 48:279-287. [PMID: 29933064 DOI: 10.1016/j.ymben.2018.06.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 05/27/2018] [Accepted: 06/18/2018] [Indexed: 11/22/2022]
Abstract
Cellular metabolic networks should be carefully balanced using metabolic engineering to produce the desired products at the industrial scale. As the precursor for the biosynthesis of the neurotransmitter serotonin, 5-hydroxytryptophan (5-HTP) is effective in treating a variety of diseases, such as depression, fibromyalgia, obesity, and cerebellar ataxia. Due to the lack of an efficient synthetic method, commercial production of 5-HTP is only achieved by extracting from the seeds of Griffonia Smplicifolia. This study reports efficient microbial production of 5-HTP via metabolically engineered Escherichia coli. Firstly, human tryptophan hydroxylase I (TPH1) gene was functionally expressed. For endogenous supply of the cofactor tetrahydrobiopterin (BH4), human BH4 biosynthesis and regeneration pathway was reconstituted. Whole-cell bioconversion resulted in high-level production of 5-HTP (~1.2 g/L) from 2 g/L L-tryptophan in shake flasks. Further metabolic engineering efforts were employed to achieve 5-HTP biosynthesis from simple carbon sources. The whole biosynthetic pathway was divided into three functional modules, L-tryptophan module, the hydroxylation module, and the BH4 module. By reducing the copy number of L-tryptophan module, replacing TPH1 with a more stable mutant form, and promoter regulation of the BH4 module, 5-HTP was produced at a final titer of 1.3 g/L in the shake flask and 5.1 g/L in a fed-batch fermenter with glycerol as the carbon source, both of which were the highest ever reported for microbial production of 5-HTP.
Collapse
Affiliation(s)
- Haijiao Wang
- Key Laboratory of Biomass Chemical Engineering (Education Ministry), College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; Institute of Biological Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Wenqian Liu
- Institute of Biological Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Feng Shi
- Shandong Institute for Food and Drug Control, Jinan 250101, China
| | - Lei Huang
- Institute of Biological Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jiazhang Lian
- Key Laboratory of Biomass Chemical Engineering (Education Ministry), College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; Institute of Biological Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Liang Qu
- Key Laboratory of Biomass Chemical Engineering (Education Ministry), College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jin Cai
- Institute of Biological Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhinan Xu
- Key Laboratory of Biomass Chemical Engineering (Education Ministry), College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; Institute of Biological Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; Shandong Institute for Food and Drug Control, Jinan 250101, China.
| |
Collapse
|
40
|
Mougiou N, Trikka F, Trantas E, Ververidis F, Makris A, Argiriou A, Vlachonasios KE. Expression of hydroxytyrosol and oleuropein biosynthetic genes are correlated with metabolite accumulation during fruit development in olive, Olea europaea, cv. Koroneiki. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 128:41-49. [PMID: 29753981 DOI: 10.1016/j.plaphy.2018.05.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 05/02/2018] [Accepted: 05/02/2018] [Indexed: 05/08/2023]
Abstract
Olive tree is one of the most valuable crops cultivated for its oil that is rich in antioxidants. The beneficial effects of oleuropein and hydroxytyrosol (HT), the most abundant and the most powerful antioxidant respectively, as well as tyrosol, HT's precursor molecule, are well studied however their biosynthetic pathways are not yet clarified. The transcriptome analysis of the young olive fruit, cultivar "Koroneiki", revealed transcripts of all the enzymes used to reconstitute the biosynthetic pathway of tyrosol and HT in other organisms. We also identified transcripts of the genes that encode for enzymes involved in the secologanin biosynthesis, oleuropein's precursor molecule. Following the transcriptome analysis, the relative expression of the transcripts was monitored during fruit development and compared to the concentration of the 3 metabolites they synthesize at the same developmental stages. The highest expression levels, accompanied by the maximum concentration of the three metabolites, was found in the young olive fruit. The correlation between the expression profile and the metabolites' concentration indicates that the transcripts were correctly identified and the synthesis of the compounds is regulated at a transcriptional level. Interestingly, HT showed a sudden increment in the final developmental stage of the black mature fruit that is attributed to oleuropein catabolism.
Collapse
Affiliation(s)
- Niki Mougiou
- Department of Botany, School of Biology, Faculty of Science, Aristotle University of Thessaloniki, Thessaloniki, 54124, Greece.
| | - Fotini Trikka
- Institute of Applied BioSciences, CERTH, 6th Km Charilaou- Thermis, 57001, Thermi, Thessaloniki, Greece.
| | - Emmanouil Trantas
- Laboratory of Biological & Biotechnological Applications, Department of Agriculture, School of Agriculture, Food and Nutrition, Technology, Technological Educational Institute of Crete, 71004, Heraklion, Greece.
| | - Filippos Ververidis
- Laboratory of Biological & Biotechnological Applications, Department of Agriculture, School of Agriculture, Food and Nutrition, Technology, Technological Educational Institute of Crete, 71004, Heraklion, Greece.
| | - Antonios Makris
- Institute of Applied BioSciences, CERTH, 6th Km Charilaou- Thermis, 57001, Thermi, Thessaloniki, Greece.
| | - Anagnostis Argiriou
- Institute of Applied BioSciences, CERTH, 6th Km Charilaou- Thermis, 57001, Thermi, Thessaloniki, Greece.
| | - Konstantinos E Vlachonasios
- Department of Botany, School of Biology, Faculty of Science, Aristotle University of Thessaloniki, Thessaloniki, 54124, Greece.
| |
Collapse
|
41
|
Wani TA, Masoodi F, Gani A, Baba WN, Rahmanian N, Akhter R, Wani IA, Ahmad M. Olive oil and its principal bioactive compound: Hydroxytyrosol – A review of the recent literature. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2018.05.001] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
42
|
Self-sustaining closed-loop multienzyme-mediated conversion of amines into alcohols in continuous reactions. Nat Catal 2018. [DOI: 10.1038/s41929-018-0082-9] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
43
|
Microbial production of novel sulphated alkaloids for drug discovery. Sci Rep 2018; 8:7980. [PMID: 29789647 PMCID: PMC5964154 DOI: 10.1038/s41598-018-26306-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 05/04/2018] [Indexed: 12/21/2022] Open
Abstract
Natural products from plants are useful as lead compounds in drug discovery. Plant benzylisoquinoline alkaloids (BIAs) exhibit various pharmaceutical activities. Although unidentified BIAs are expected to be of medicinal value, sufficient quantities of such BIAs, for biological assays, are sometimes difficult to obtain due to their low content in natural sources. Here, we showed that high productivity of BIAs in engineered Escherichia coli could be exploited for drug discovery. First, we improved upon the previous microbial production system producing (S)-reticuline, an important BIA intermediate, to obtain yields of around 160 mg/L, which was 4-fold higher than those of the previously reported highest production system. Subsequently, we synthesised non-natural BIAs (O-sulphated (S)-reticulines) by introducing human sulphotransferases into the improved (S)-reticuline production system. Analysis of human primary cells treated with these BIAs demonstrated that they affected a biomarker expression in a manner different from that by the parent compound (S)-reticuline, suggesting that simple side-chain modification altered the characteristic traits of BIA. These results indicated that highly productive microbial systems might facilitate the production of scarce or novel BIAs and enable subsequent evaluation of their biological activities. The system developed here could be applied to other rare natural products and might contribute to the drug-discovery process as a next-generation strategy.
Collapse
|
44
|
Mora-Villalobos JA, Zeng AP. Synthetic pathways and processes for effective production of 5-hydroxytryptophan and serotonin from glucose in Escherichia coli. J Biol Eng 2018; 12:3. [PMID: 29568327 PMCID: PMC5856393 DOI: 10.1186/s13036-018-0094-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 01/22/2018] [Indexed: 01/01/2023] Open
Abstract
Background Tryptophan derivatives such as 5-hydroxytryptophan (5HTP) and serotonin are valuable molecules with pharmaceutical interest. 5HTP is presently mainly obtained by extraction from the plant Griffonia simplicifolia and serotonin is produced by chemical synthesis. A simple biotechnological method for the production of these compounds is desired. Results In a first attempt to synthesize serotonin from glucose, we used a single engineered Escherichia coli strain and observed a low production of maximal 0.8 ± 0.2 mg/L of serotonin, probably due to the undesired site-reaction of direct decarboxylation of tryptophan and the consequent decrease of the precursor 5HTP. To circumvent this problem, we have constructed a stepwise system in which the 5HTP production and the serotonin conversion are separated. 962 ± 58 mg/L of 5HTP was produced in the first step using a recombinant strain with a semi-rationally engineered aromatic amino acid hydroxylase, the highest concentration reported so far. In a subsequent step of 5HTP bioconversion using a recombinant strain harboring a tryptophan decarboxylase, 154.3 ± 14.3 mg/L of serotonin was produced. Conclusions We present results of a two-stage fermentation process for the production of 5HTP and serotonin. The first strain is a highly efficient 5HTP producer, and after fermentation the supernatant is separated and used for the production of serotonin. This is the first report for the microbial production of serotonin from glucose.
Collapse
Affiliation(s)
- José-Aníbal Mora-Villalobos
- 1Institute of Bioprocess and Biosystems Engineering, Hamburg University of Technology, Hamburg, Germany.,Centro Nacional de Innovaciones Biotecnológicas, Centro Nacional de Alta Tecnología, San José, Costa Rica
| | - An-Ping Zeng
- 1Institute of Bioprocess and Biosystems Engineering, Hamburg University of Technology, Hamburg, Germany
| |
Collapse
|
45
|
Li X, Chen Z, Wu Y, Yan Y, Sun X, Yuan Q. Establishing an Artificial Pathway for Efficient Biosynthesis of Hydroxytyrosol. ACS Synth Biol 2018; 7:647-654. [PMID: 29281883 DOI: 10.1021/acssynbio.7b00385] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Hydroxytyrosol (HT) is a valuable natural phenolic compound with strong antioxidant activity and various physiological and pharmaceutical functions. In this study, we established an artificial pathway for HT biosynthesis. First, efficient enzymes were selected to construct a tyrosol biosynthetic pathway. Aro10 from Saccharomyces cerevisiae was shown to be a better ketoacid decarboxylase than Kivd from Lactococcus lactis for tyrosol production. While knockout of feaB significantly decreased accumulation of the byproduct 4-hydroxyphenylacetic acid, overexpression of alcohol dehydrogenase ADH6 further improved tyrosol production. The titers of tyrosol reached 1469 ± 56 mg/L from tyrosine and 620 ± 23 mg/L from simple carbon sources, respectively. The pathway was further extended for HT production by overexpressing Escherichia coli native hydroxylase HpaBC. To enhance transamination of tyrosine to 4-hydroxyphenylpyruvate, NH4Cl was removed from the culture media. To decrease oxidation of HT, ascorbic acid was added to the cell culture. To reduce the toxicity of HT, 1-dodecanol was selected as the extractant for in situ removal of HT. These efforts led to an additive increase in HT titer to 1243 ± 165 mg/L in the feeding experiment. Assembly of the full pathway resulted in 647 ± 35 mg/L of HT from simple carbon sources. This work provides a promising alternative for sustainable production of HT, which shows scale-up potential.
Collapse
Affiliation(s)
- Xianglai Li
- State
Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhenya Chen
- State
Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yifei Wu
- State
Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yajun Yan
- College
of Engineering, The University of Georgia, Athens, Georgia 30602, United States
| | - Xinxiao Sun
- State
Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Qipeng Yuan
- State
Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| |
Collapse
|
46
|
Wei K, Yin H, Peng H, Liu Z, Lu G, Dang Z. Characteristics and proteomic analysis of pyrene degradation by Brevibacillus brevis in liquid medium. CHEMOSPHERE 2017; 178:80-87. [PMID: 28319745 DOI: 10.1016/j.chemosphere.2017.03.049] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 02/07/2017] [Accepted: 03/11/2017] [Indexed: 06/06/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are widely spread in various ecosystems and are of great concern due to their potential toxicity, mutagenicity and carcinogenicity. Bioremediation has been proposed as an effective approach to remove PAHs. In this study, the physiological responses and proteome of Brevibacillus brevis under exposure to pyrene, a four-ring compound from PAHs family, were investigated. The changes of cell viability of B. brevis were observed during the degradation of pyrene by means of flow cytometry. The results indicated that pyrene stimulated superoxide dismutase (SOD) activity from 93.9 to 100.6 U mg-1 prot, whereas inhibited catalase (CAT) activity from 29.1 to 20.3 U mg-1 prot. The main compositions of B. brevis changed during pyrene degradation, with the proportion of unsaturated fatty acids increased by 13.4%. In addition, we performed a proteomic approach (two-dimensional gel electrophoresis and MALDI-TOF/TOF-MS) in order to explore how B. brevis survived upon treatment with pyrene. It was showed that the expression of 13 proteins increased whereas 10 other decreased after pyrene-treatment. The differentially expressed proteins were identified and the results indicated that they were involved in multiple biological processes including energy metabolism, biosynthesis, transmembrane transport and oxidative stress. Overall, these findings offered a new insights into the cellular response strategy developed by B. brevis to overcome the pyrene stress.
Collapse
Affiliation(s)
- Kun Wei
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, Guangdong Provincial Engineering and Technology Research Center for Environmental Risk Prevention and Emergency Disposal, School of Environment and Energy, South China University of Technology, Guangzhou 510006, Guangdong, China
| | - Hua Yin
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, Guangdong Provincial Engineering and Technology Research Center for Environmental Risk Prevention and Emergency Disposal, School of Environment and Energy, South China University of Technology, Guangzhou 510006, Guangdong, China.
| | - Hui Peng
- Department of Chemistry, Jinan University, Guangzhou 510632, Guangdong, China
| | - Zehua Liu
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, Guangdong Provincial Engineering and Technology Research Center for Environmental Risk Prevention and Emergency Disposal, School of Environment and Energy, South China University of Technology, Guangzhou 510006, Guangdong, China
| | - Guining Lu
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, Guangdong Provincial Engineering and Technology Research Center for Environmental Risk Prevention and Emergency Disposal, School of Environment and Energy, South China University of Technology, Guangzhou 510006, Guangdong, China
| | - Zhi Dang
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, Guangdong Provincial Engineering and Technology Research Center for Environmental Risk Prevention and Emergency Disposal, School of Environment and Energy, South China University of Technology, Guangzhou 510006, Guangdong, China
| |
Collapse
|
47
|
Mora-Villalobos JA, Zeng AP. Protein and pathway engineering for the biosynthesis of 5-hydroxytryptophan in Escherichia coli. Eng Life Sci 2017; 17:892-899. [PMID: 32624837 DOI: 10.1002/elsc.201700064] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 05/16/2017] [Accepted: 05/29/2017] [Indexed: 11/06/2022] Open
Abstract
The hydroxylation of tryptophan is an important reaction in the biosynthesis of natural products. 5-Hydroxytryptophan (5HTP) is not only an important compound for its pharmaceutical value but also because it is the precursor of other molecules, such as serotonin. In this study, we have extended the metabolism of an E. coli strain to produce 5HTP. Aromatic amino acid hydroxylase from Cupriavidus taiwanensis (CtAAAH) was selected using an in silico structure-based approach. We have predicted and selected several substrate-determining residues using sequence, phylogenetic and functional divergence analyses; we also did rational design on CtAAAH to shift the enzyme preference from phenylalanine to tryptophan. Whole cell bioconversion assays were used to show the effect of predicted sites. In general, all of them decreased the preference toward phenylalanine and increased the tryptophan synthesis activity. The best performer, CtAAAH-W192F, was transformed into a strain that had the tryptophanase gene disrupted and carried a human tetrahydrobiopterin (BH4) regeneration pathway. The resulting strain was capable of synthesizing 2.5 mM 5HTP after 24 hours. This work demonstrates the application of computational approaches for protein engineering and further coupling with the bacterial metabolism.
Collapse
Affiliation(s)
- José-Aníbal Mora-Villalobos
- Institute of Bioprocess and Biosystems Engineering Hamburg University of Technology Hamburg Germany.,Centro Nacional de Innovaciones Biotecnológicas Centro Nacional de Alta Tecnología San Jose Costa Rica
| | - An-Ping Zeng
- Institute of Bioprocess and Biosystems Engineering Hamburg University of Technology Hamburg Germany
| |
Collapse
|
48
|
Chung D, Kim SY, Ahn JH. Production of three phenylethanoids, tyrosol, hydroxytyrosol, and salidroside, using plant genes expressing in Escherichia coli. Sci Rep 2017; 7:2578. [PMID: 28566694 PMCID: PMC5451403 DOI: 10.1038/s41598-017-02042-2] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 04/06/2017] [Indexed: 11/09/2022] Open
Abstract
Polyphenols, which include phenolic acids, flavonoids, stilbenes, and phenylethanoids, are generally known as useful antioxidants. Tyrosol, hydroxytyrosol, and salidroside are typical phenylethanoids. Phenylethanoids are found in plants such as olive, green tea, and Rhodiola and have various biological activities, including the prevention of cardiovascular diseases, cancer, and brain damage. We used Escherichia coli to synthesize three phenylethanoids, tyrosol, hydroxytyrosol, and salidroside. To synthesize tyrosol, the aromatic aldehyde synthase (AAS) was expressed in E. coli. Hydroxytyrosol was synthesized using E. coli harboring AAS and HpaBC, which encodes hydroxylase. In order to synthesize salidroside, 12 uridine diphosphate-dependent glycosyltransferases (UGTs) were screened and UGT85A1 was found to convert tyrosol to salidroside. Using E. coli harboring AAS and UGT85A1, salidroside was synthesized. Through the optimization of these three E. coli strains, we were able to synthesize 531 mg/L tyrosol, 208 mg/L hydroxytyrosol, and 288 mg/L salidroside, respectively.
Collapse
Affiliation(s)
- Daeun Chung
- Department of Integrative Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Seoul, 05029, Republic of Korea
| | - So Yeon Kim
- Department of Integrative Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Seoul, 05029, Republic of Korea
| | - Joong-Hoon Ahn
- Department of Integrative Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Seoul, 05029, Republic of Korea.
| |
Collapse
|
49
|
Caffeic acid production by simultaneous saccharification and fermentation of kraft pulp using recombinant Escherichia coli. Appl Microbiol Biotechnol 2017; 101:5279-5290. [PMID: 28396925 DOI: 10.1007/s00253-017-8270-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 03/22/2017] [Accepted: 03/27/2017] [Indexed: 10/19/2022]
Abstract
Caffeic acid (3,4-dihydroxycinnamic acid) serves as a building block for thermoplastics and a precursor for biologically active compounds and was recently produced from glucose by microbial fermentation. To produce caffeic acid from inedible cellulose, separate hydrolysis and fermentation (SHF) and simultaneous saccharification and fermentation (SSF) reactions were compared using kraft pulp as lignocellulosic feedstock. Here, a tyrosine-overproducing Escherichia coli strain was metabolically engineered to produce caffeic acid from glucose by introducing the genes encoding a 4-hydroxyphenyllactate 3-hydroxylase (hpaBC) from Pseudomonas aeruginosa and tyrosine ammonia lyase (fevV) from Streptomyces sp. WK-5344. Using the resulting recombinant strain, the maximum yield of caffeic acid in SSF (233 mg/L) far exceeded that by SHF (37.9 mg/L). In the SSF with low cellulase loads (≤2.5 filter paper unit/g glucan), caffeic acid production was markedly increased, while almost no glucose accumulation was detected, indicating that the E. coli cells experienced glucose limitation in this culture condition. Caffeic acid yield was also negatively correlated with the glucose concentration in the fermentation medium. In SHF, the formation of by-product acetate and the accumulation of potential fermentation inhibitors increased significantly with kraft pulp hydrolysate than filter paper hydrolysate. The combination of these inhibitors had synergistic effects on caffeic acid fermentation at low concentrations. With lower loads of cellulase in SSF, less potential fermentation inhibitors (furfural, 5-hydroxymethyfurfural, and 4-hydroxylbenzoic acid) accumulated in the medium. These observations suggest that glucose limitation in SSF is crucial for improving caffeic acid yield, owing to reduced by-product formation and fermentation inhibitor accumulation.
Collapse
|
50
|
Ali S, Nawaz W. Optimisation of nutritional requirements for dopamine synthesis by calcium alginate-entrapped mutant strain of Aspergillus oryzae EMS-6. Nat Prod Res 2016; 31:281-288. [PMID: 27686520 DOI: 10.1080/14786419.2016.1233408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The optimisation of nutritional requirements for dopamine (DA) synthesis by calcium alginate-entrapped mutant variant of Aspergillus oryzae EMS-6 using submerged fermentation technique was investigated. A total of 13 strains were isolated from soil. Isolate I-2 was selected as a better producer of DA and improved by exposing with ethyl methylsulphonate (EMS). EMS-6 was selected as it exhibited 43 μg/mL DA activity. The mutant variable was further treated with low levels of l-cysteine HCl to make it resistant against diversion and environmental stress. The conidiospores of mutant variant were entrapped in calcium alginate beads for stable product formation. EMS-6 gave maximum DA activity (124 μg/mL) when supplemented with 0.1% peptone and 0.2% sucrose, under optimised parameters viz. pH 3, temperature of 55 °C and incubation time of 70 min. The study involves the high profile of DA activity and is needed, as DA is capable to control numerous neurogenic disorders.
Collapse
Affiliation(s)
- Sikander Ali
- a Institute of Industrial Biotechnology (IIB) , GC University Lahore , Lahore , Pakistan
| | - Wajeeha Nawaz
- a Institute of Industrial Biotechnology (IIB) , GC University Lahore , Lahore , Pakistan
| |
Collapse
|