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Kumar P, Park H, Yuk Y, Kim H, Jang J, Pagolu R, Park S, Yeo C, Choi KY. Developed and emerging 1,4-butanediol commercial production strategies: forecasting the current status and future possibility. Crit Rev Biotechnol 2024; 44:530-546. [PMID: 37286203 DOI: 10.1080/07388551.2023.2176740] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 12/26/2022] [Accepted: 01/17/2023] [Indexed: 06/09/2023]
Abstract
1,4-Butanediol (1,4-BDO) is a valuable industrial chemical that is primarily produced via several energy-intensive petrochemical processes based on fossil-based raw materials, leading to issues related to: non-renewability, environmental contamination, and high production costs. 1,4-BDO is used in many chemical reactions to develop a variety of useful, valuable products, such as: polyurethane, Spandex intermediates, and polyvinyl pyrrolidone (PVP), a water-soluble polymer with numerous personal care and pharmaceutical uses. In recent years, to satisfy the growing need for 1,4-BDO, there has been a major shift in focus to sustainable bioproduction via microorganisms using: recombinant strains, metabolic engineering, synthetic biology, enzyme engineering, bioinformatics, and artificial intelligence-guided algorithms. This article discusses the current status of the development of: various chemical and biological production techniques for 1,4-BDO, advances in biological pathways for 1,4-BDO biosynthesis, prospects for future production strategies, and the difficulties associated with environmentally friendly and bio-based commercial production strategies.
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Affiliation(s)
- Pradeep Kumar
- Institute of Environmental Engineering, Ajou University, Suwon, South Korea
| | - HyunA Park
- Department of Environmental Engineering, Ajou University, Suwon, South Korea
| | - Yong Yuk
- Institute of Environmental Engineering, Ajou University, Suwon, South Korea
| | - Hayan Kim
- Department of Life Science, Ajou University, Suwon, South Korea
| | - Jihwan Jang
- Institute of Environmental Engineering, Ajou University, Suwon, South Korea
| | - Raviteja Pagolu
- Institute of Environmental Engineering, Ajou University, Suwon, South Korea
| | - SeoA Park
- Department of Environmental Engineering, Ajou University, Suwon, South Korea
| | - Chanseo Yeo
- Department of Environmental and Safety Engineering, Ajou University, Suwon, South Korea
| | - Kwon-Young Choi
- Institute of Environmental Engineering, Ajou University, Suwon, South Korea
- Department of Environmental Engineering, Ajou University, Suwon, South Korea
- Department of Environmental and Safety Engineering, Ajou University, Suwon, South Korea
- Department of Energy Systems Research, Ajou University, Suwon, South Korea
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Kim B, Oh SJ, Hwang JH, Kim HJ, Shin N, Joo JC, Choi KY, Park SH, Park K, Bhatia SK, Yang YH. Complementation of reducing power for 5-hydroxyvaleric acid and 1,5-pentanediol production via glucose dehydrogenase in Escherichia coli whole-cell system. Enzyme Microb Technol 2023; 170:110305. [PMID: 37595400 DOI: 10.1016/j.enzmictec.2023.110305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 08/10/2023] [Accepted: 08/11/2023] [Indexed: 08/20/2023]
Abstract
One of the key intermediates, 5-hydroxyvaleric acid (5-HV), is used in the synthesis of polyhydroxyalkanoate monomer, δ-valerolactone, 1,5-pentanediol (1,5-PDO), and many other substances. Due to global environmental problems, eco-friendly bio-based synthesis of various platform chemicals and key intermediates are socially required, but few previous studies on 5-HV biosynthesis have been conducted. To establish a sustainable bioprocess for 5-HV production, we introduced gabT encoding 4-aminobutyrate aminotransferase and yqhD encoding alcohol dehydrogenase to produce 5-HV from 5-aminovaleric acid (5-AVA), through glutarate semialdehyde in Escherichia coli whole-cell reaction. As, high reducing power is required to produce high concentrations of 5-HV, we newly introduced glucose dehydrogenase (GDH) for NADPH regeneration system from Bacillus subtilis 168. By applying GDH with D-glucose and optimizing the parameters, 5-HV conversion rate from 5-AVA increased from 47% (w/o GDH) to 82% when using 200 mM (23.4 g/L) of 5-AVA. Also, it reached 56% conversion in 2 h, showing 56 mM/h (6.547 g/L/h) productivity from 200 mM 5-AVA, finally reaching 350 mM (41 g/L) and 14.6 mM/h (1.708 g/L/h) productivity at 24 h when 1 M (117.15 g/L) 5-AVA was used. When the whole-cell system with GDH was expanded to produce 1,5-PDO, its production was also increased 5-fold. Considering that 5-HV and 1,5-PDO production depends heavily on the reducing power of the cells, we successfully achieved a significant increase in 5-HV and 1,5-PDO production using GDH.
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Affiliation(s)
- Byungchan Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, Republic of Korea
| | - Suk Jin Oh
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, Republic of Korea
| | - Jeong Hyeon Hwang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, Republic of Korea
| | - Hyun Jin Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, Republic of Korea
| | - Nara Shin
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, Republic of Korea
| | - Jeong Chan Joo
- Deparment of Biotechnology, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Kwon-Young Choi
- Department of Environmental and Safety Engineering, College of Engineering, Ajou University, Gyeonggi-do, Republic of Korea; Department of Energy Systems Research, Ajou University, Gyeonggi-do, Republic of Korea
| | - See-Hyoung Park
- Department of Biological and Chemical Engineering, Hongik University, Sejong, Republic of Korea
| | - Kyungmoon Park
- Department of Biological and Chemical Engineering, Hongik University, Sejong, Republic of Korea
| | - Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, Republic of Korea.
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, Republic of Korea.
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Lee UJ, Sohng JK, Kim BG, Choi KY. Recent trends in the modification of polyphenolic compounds using hydroxylation and glycosylation. Curr Opin Biotechnol 2023; 80:102914. [PMID: 36857963 DOI: 10.1016/j.copbio.2023.102914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/08/2023] [Accepted: 01/31/2023] [Indexed: 03/02/2023]
Abstract
Polyphenols are bioactive molecules that are used in therapeutics. Polyphenol hydroxylation and glycosylation have been shown to increase their bioavailability, solubility, bioactivity, and stability for use in various applications. Ortho-hydroxylation of polyphenols using tyrosinase allows high selectivity and yield without requiring a cofactor, while meta- and para-hydroxylation of polyphenols are mediated by site-specific hydroxylases and cytochrome P450s, although these processes are somewhat rare. O-glycosylation of polyphenols proceeds further after hydroxylation. The O-glycosylation reaction typically requires nucleotide diphosphate (NDP) sugar. However, amylosucrase (AS) has emerged as a promising enzyme for polyphenol glycosylation in large-scale production without requiring NDP-sugar. Overall, this review describes recent findings on the enzymatic mechanisms, enzyme engineering, and applications of enzymatic reactions.
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Affiliation(s)
- Uk-Jae Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea; Bio-MAX/N-Bio, Institute of BioEngineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Jae Kyung Sohng
- Institute of Biomolecule Reconstruction (iBR), Department of Life Science and Biochemical Engineering, Sun Moon University, Asan-si, Chungnam, Republic of Korea; Department of Biotechnology and Pharmaceutical Engineering, Sun Moon University, Asan-si, Chungnam, Republic of Korea
| | - Byung-Gee Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea; Bio-MAX/N-Bio, Institute of BioEngineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Kwon-Young Choi
- Department of Environmental and Safety Engineering, College of Engineering, Ajou University, Republic of Korea; Department of Energy Systems Research, Ajou University, Republic of Korea.
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Ham S, Cho DH, Oh SJ, Hwang JH, Kim HJ, Shin N, Ahn J, Choi KY, Bhatia SK, Yang YH. Enhanced production of bio-indigo in engineered Escherichia coli, reinforced by cyclopropane-fatty acid-acyl-phospholipid synthase from psychrophilic Pseudomonas sp. B14-6. J Biotechnol 2023; 366:1-9. [PMID: 36849085 DOI: 10.1016/j.jbiotec.2023.02.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 01/29/2023] [Accepted: 02/22/2023] [Indexed: 02/27/2023]
Abstract
Indigo dye is an organic compound with a distinctive blue color. Most of the indigo currently used in industry is produced via chemical synthesis, which generates a large amount of wastewater. Therefore, several studies have recently been conducted to find ways to produce indigo eco-friendly using microorganisms. Here, we produced indigo using recombinant Escherichia coli with both an indigo-producing plasmid and a cyclopropane fatty acid (CFA)-regulating plasmid. The CFA-regulating plasmid contains the cfa gene, and its expression increases the CFA composition of the phospholipid fatty acids of the cell membrane. Overexpression of cfa showed cytotoxicity resistance of indole, an intermediate product formed during the indigo production process. This had a positive effect on indigo production and cfa originated from Pseudomonas sp. B 14-6 was used. Optimal conditions for indigo production were determined by adjusting the expression strain, culture temperature, shaking speed, and isopropyl β-D-1-thiogalactopyranoside concentration. Treatment with Tween 80 at a particular concentration to increase the permeability of the cell membrane had a positive effect on indigo production. The strain with the CFA plasmid produced 4.1 mM of indigo after 24 h of culture and produced 1.5-fold higher indigo than the control strain without the CFA plasmid that produced 2.7 mM.
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Affiliation(s)
- Sion Ham
- Department of Biological Engineering, College of Engineering, Konkuk University, the Republic of Korea
| | - Do-Hyun Cho
- Department of Biological Engineering, College of Engineering, Konkuk University, the Republic of Korea
| | - Suk Jin Oh
- Department of Biological Engineering, College of Engineering, Konkuk University, the Republic of Korea
| | - Jeong Hyeon Hwang
- Department of Biological Engineering, College of Engineering, Konkuk University, the Republic of Korea
| | - Hyun Jin Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, the Republic of Korea
| | - Nara Shin
- Department of Biological Engineering, College of Engineering, Konkuk University, the Republic of Korea
| | - Jungoh Ahn
- Biotechnology Process Engineering Center, Korea Research Institute Bioscience Biotechnology (KRIBB), the Republic of Korea
| | - Kwon-Young Choi
- Department of Environmental and Safety Engineering, College of Engineering, Ajou University, the Republic of Korea; Department of Energy Systems Research, Ajou University, the Republic of Korea
| | - Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, the Republic of Korea.
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, the Republic of Korea.
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Park G, Kim YC, Jang M, Park H, Lee HW, Jeon W, Kim BG, Choi KY, Ahn J. Biosynthesis of aliphatic plastic monomers with amino residues in Yarrowia lipolytica. Front Bioeng Biotechnol 2023; 10:825576. [PMID: 36714625 PMCID: PMC9875067 DOI: 10.3389/fbioe.2022.825576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 12/15/2022] [Indexed: 01/12/2023] Open
Abstract
Introduciton: The α,ω-diamines (NH2-(CH2)n-NH2) and ω -amino fatty acids (NH2-(CH2)n-COOH) have been widely used as building blocks in polymerindustries. Medium- to long-chain (C8 to C18) fatty acid monomers with amino residues are almost exclusively produced via chemical processes that generate hazardous waste and induce severe environmental problems, such as global warming and pollution. Here, we present the construction platformstrains of Yarrowia lipolytica a cheese-ripening yeast, for direct biotransformation of hydrocarbons into medium- to long-chain α,ω-diamines and ωamino fatty acids using metabolic engineering of endogenous fatty acid ω- and β-oxidation pathways and introducing heterologous ω-transaminase in Y. lipolytica. Methods: We deleted six genes encoding the acyl-CoA oxidase (ACO1-6) and four fatty aldehyde dehydrogenase genes (FALDH1-4), which catalyze fatty acid β-oxidation and downstream oxidation of fatty aldehydes in Y. lipolytica, respectively. The ω-transaminase from Chromobacterium violaceum DSM30191 was introduced into the genome of the ΔPOX ΔFALDH strain under the control of Y. lipolytica-derived EXP1 promoters. Results and Discussion: The ΔPOX ΔFALDH strains with ω-CvTA successfully accumulated the corresponding C12 αω-diamines into a shaking culture medium with dodecane or dodecanol. In addition, these strains accumulated C12 ω-amino fatty acids from dodecanoic acid. With the commercially available α,ω-diacid bioprocess, this yeast biosynthesis producing medium- and longchain α,ω-diamines and ω-amino fatty acids could complete the yeast platform technology generating all medium- and long-chain aliphatic polyamide monomers, α,ω-biofunctionalized with one or both carboxylic acid and amino residues.
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Affiliation(s)
- Gyuyeon Park
- Department of Bioprocess Engineering, University of Science and Technology (UST) of Korea, Daejeon, South Korea
| | - Ye Chan Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul, South Korea
| | - Minjeong Jang
- Biotechnology Process Engineering Center, Korea Research Institute of Biosceince and Biotechnology (KRIBB), Daejeon, Chungcheongbuk-do, South Korea
| | - Hyuna Park
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do, South Korea
| | - Hong-Weon Lee
- Department of Bioprocess Engineering, University of Science and Technology (UST) of Korea, Daejeon, South Korea,Biotechnology Process Engineering Center, Korea Research Institute of Biosceince and Biotechnology (KRIBB), Daejeon, Chungcheongbuk-do, South Korea
| | - Wooyoung Jeon
- Department of Bioprocess Engineering, University of Science and Technology (UST) of Korea, Daejeon, South Korea,Biotechnology Process Engineering Center, Korea Research Institute of Biosceince and Biotechnology (KRIBB), Daejeon, Chungcheongbuk-do, South Korea
| | - Byung-Gee Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul, South Korea
| | - Kwon-Young Choi
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do, South Korea,Department of Environmental and Safety Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do, South Korea,*Correspondence: Kwon-Young Choi, ; Jungoh Ahn,
| | - Jungoh Ahn
- Department of Bioprocess Engineering, University of Science and Technology (UST) of Korea, Daejeon, South Korea,Biotechnology Process Engineering Center, Korea Research Institute of Biosceince and Biotechnology (KRIBB), Daejeon, Chungcheongbuk-do, South Korea,*Correspondence: Kwon-Young Choi, ; Jungoh Ahn,
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Kim SY, Choi KY. Enhanced isobutanol production using engineered E. coli and B. subtilis host by UV-induced mutation. 3 Biotech 2022; 12:283. [PMID: 36276452 PMCID: PMC9485403 DOI: 10.1007/s13205-022-03340-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 08/29/2022] [Indexed: 11/26/2022] Open
Abstract
Recombinant Escherichia coli and Bacillus subtilis strains were engineered by simultaneous chemical and ultraviolet-induced random mutagenesis to enhance bio-alcohol production. Our study investigated the bio-alcohol production of six variants of E. coli (EM1-6) and B. subtilis mutants (BM1-6). The induced mutation in the EM variants increased isobutanol (C4 alcohol) production most effectively, whereas pH adjustment and additional l-valine feeding increased isobutanol production by the BM variants. In contrast, pH adjustment or l-valine addition negatively affected isobutanol production by the EM variants. The highest titer of 5.07 g/L of isobutanol from a 40 g/L yeast extract medium (YEM) was achieved by the EM1 variant, whereas 0.57 g/L of isobutanol from YEM supplemented with 5 g/L of l-valine was obtained from the BM5 variant. These results can be applied in further research on engineering production hosts and improving production titers to utilize heterogenous bioresources in the future.
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Affiliation(s)
- Seo Yeong Kim
- Environmental Research Institute, Ajou University, Suwon, Gyeonggi-do South Korea
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do South Korea
| | - Kwon-Young Choi
- Environmental Research Institute, Ajou University, Suwon, Gyeonggi-do South Korea
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do South Korea
- Department of Environmental and Safety Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do South Korea
- Department of Energy Systems Research, Ajou University, Suwon, Gyeonggi-do South Korea
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Lee HS, Lee HJ, Kim B, Kim SH, Cho DH, Jung HJ, Bhatia SK, Choi KY, Kim W, Lee J, Lee SH, Yang YH. Inhibition of Cyclopropane Fatty Acid Synthesis in the Membrane of Halophilic Halomonas socia CKY01 by Kanamycin. BIOTECHNOL BIOPROC E 2022. [DOI: 10.1007/s12257-022-0086-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Lee HJ, Kim B, Kim S, Cho DH, Jung H, Bhatia SK, Gurav R, Ahn J, Park JH, Choi KY, Yang YH. Controlling catabolite repression for isobutanol production using glucose and xylose by overexpressing the xylose regulator. J Biotechnol 2022; 359:21-28. [PMID: 36152769 DOI: 10.1016/j.jbiotec.2022.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/14/2022] [Accepted: 09/19/2022] [Indexed: 10/31/2022]
Abstract
Using lignocellulosic biomass is immensely beneficial for the economical production of biochemicals. However, utilizing mixed sugars from lignocellulosic biomass is challenging because of bacterial preference for specific sugar such as glucose. Although previous studies have attempted to overcome this challenge, no studies have been reported on isobutanol production from mixed sugars in the Escherichia coli strain. To overcome catabolite repression of xylose and produce isobutanol using mixed sugars, we applied the combination of three strategies: (1) deletion of the gene for the glucose-specific transporter of the phosphotransferase system (ptsG); (2) overexpression of glucose kinase (glk) and glucose facilitator protein (glf); and (3) overexpression of the xylose regulator (xylR). xylR gene overexpression resulted in 100% of glucose and 82.5% of xylose consumption in the glucose-xylose mixture (1:1). Moreover, isobutanol production increased by 192% in the 1:1 medium, equivalent to the amount of isobutanol produced using only glucose. These results indicate the effectiveness of xylR overexpression in isobutanol production. Our findings demonstrated various strategies to overcome catabolite repression for a specific product, isobutanol. The present study suggests that the selected strategy in E. coli could overcome the major challenge using lignocellulosic biomass to produce isobutanol.
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Affiliation(s)
- Hong-Ju Lee
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, South Korea
| | - Byungchan Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, South Korea
| | - Suhyun Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, South Korea
| | - Do-Hyun Cho
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, South Korea
| | - Heeju Jung
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, South Korea
| | - Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, South Korea; Institute for Ubiquitous Information Technology and Applications, Konkuk University, Seoul 05029, South Korea
| | - Ranjit Gurav
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, South Korea
| | - Jungoh Ahn
- Biotechnology Process Engineering Center, Korea Research Institute Bioscience Biotechnology (KRIBB), South Korea
| | - Jung-Ho Park
- Bio-Evaluation Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, South Korea
| | - Kwon-Young Choi
- Department of Environmental and Safety Engineering, College of Engineering, Ajou University, South Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, South Korea; Institute for Ubiquitous Information Technology and Applications, Konkuk University, Seoul 05029, South Korea.
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Lee J, Kim J, Kim H, Park H, Kim JY, Kim EJ, Yang YH, Choi KY, Kim BG. Constructing multi-enzymatic cascade reactions for selective production of 6-bromoindirubin from tryptophan in Escherichia coli. Biotechnol Bioeng 2022; 119:2938-2949. [PMID: 35876239 DOI: 10.1002/bit.28188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/04/2022] [Accepted: 07/17/2022] [Indexed: 11/06/2022]
Abstract
6-Bromoindirubin (6BrIR), found in Murex sea snails, is a precursor of indirubin-derivatives anticancer drugs. However, its synthesis remains limited due to uncharacterized biosynthetic pathways and difficulties in site-specific bromination and oxidation at indole ring. Here, we present an efficient 6BrIR production strategy in E. coli by using four enzymes, i.e., tryptophan 6-halogenase fused with flavin reductase Fre (Fre-L3-SttH), tryptophanase (TnaA), toluene 4-monooxygenase (PmT4MO) and flavin-containing monooxygenase (MaFMO). Although most indole oxygenases preferentially oxygenate the electronically active C3 position of indole, PmT4MO was newly characterized to perform C2 oxygenation of 6-bromoindole with 45 % yield to produce 6-bromo-2-oxindole. In addition, 6BrIR was selectively generated without indigo and indirubin byproducts by controlling the reducing power of cysteine and oxygen supply during the MaFMO reaction. These approaches led to 34.1 mg/L 6BrIR productions, making it possible to produce the critical precursor of the anticancer drugs only from natural ingredients such as tryptophan, NaBr and oxygen. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Jeongchan Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea.,Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea.,Bio-MAX Institute, Seoul National University, Seoul, Republic of Korea
| | - Joonwon Kim
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, USA
| | - Hyun Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea
| | - HyunA Park
- Department of Environmental Engineering, Ajou University, Suwon, Republic of Korea
| | - Jin Young Kim
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, Republic of Korea
| | - Eun-Jung Kim
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea.,Bio-MAX Institute, Seoul National University, Seoul, Republic of Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, Konkuk University, Seoul, Republic of Korea
| | - Kwon-Young Choi
- Department of Environmental Engineering, Ajou University, Suwon, Republic of Korea
| | - Byung-Gee Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Republic of Korea.,Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea.,Bio-MAX Institute, Seoul National University, Seoul, Republic of Korea.,Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, Republic of Korea.,Institute of Engineering Research, Seoul National University, Seoul, Republic of Korea
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Lee SM, Cho DH, Jung HJ, Kim B, Kim SH, Bhatia SK, Gurav R, Jeon JM, Yoon JJ, Kim W, Choi KY, Yang YH. Finding of novel polyhydroxybutyrate producer Loktanella sp. SM43 capable of balanced utilization of glucose and xylose from lignocellulosic biomass. Int J Biol Macromol 2022; 208:809-818. [PMID: 35364206 DOI: 10.1016/j.ijbiomac.2022.03.155] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/13/2022] [Accepted: 03/23/2022] [Indexed: 11/05/2022]
Abstract
Polyhydroxybutyrate (PHB) is a potential substitute for plastics derived from fossil fuels, owing to its biodegradable and biocompatible properties. Lignocellulosic biomass could be used to reduce PHB production costs; however, the co-utilization of sugars, such as glucose and xylose, without catabolite repression is a difficult problem to be solved. Here, we selected a novel Loktanella sp. SM43 from a marine environment and optimized the conditions for PHB production. Loktanella sp. SM43 showed high PHB production (66.5% content) from glucose. When glucose and xylose were used together, this strain showed high utilization of both substrates compared to other high PHB-producers such as Halomonas sp. and Cupriavidus necator, which showed glucose preference. Loktanella sp. SM43 showed high growth and PHB production with lignocellulosic hydrolysates. When pine tree hydrolysates were used, PHB production was the highest at 3.66 ± 0.01 g/L, followed by Miscanthus (3.46 ± 0.09 g/L) and barley straw hydrolysate (3.36 ± 0.36 g/L). Overall, these results reveal the potential of Loktanella sp. SM43 to produce PHB using various lignocellulosic hydrolysates as feedstock and the first systematic study for PHB production with Loktanella sp. The approach of screening novel strains is a strategy to overcome co-utilization of sugars without genetic engineering.
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Affiliation(s)
- Sun Mi Lee
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Do-Hyun Cho
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Hee Ju Jung
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Byungchan Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Su Hyun Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Ranjit Gurav
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Jong-Min Jeon
- Green & Sustainable Materials R&D Department, Research Institute of Clean Manufacturing System, Korea Institute of Industrial Technology (KITECH), Republic of Korea
| | - Jeong-Jun Yoon
- Green & Sustainable Materials R&D Department, Research Institute of Clean Manufacturing System, Korea Institute of Industrial Technology (KITECH), Republic of Korea
| | - Wooseong Kim
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Kwon-Young Choi
- Department of Environmental and Safety Engineering, College of Engineering, Ajou University, Republic of Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea.
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Ahuja V, Bhatt AK, Varjani S, Choi KY, Kim SH, Yang YH, Bhatia SK. Quantum dot synthesis from waste biomass and its applications in energy and bioremediation. Chemosphere 2022; 293:133564. [PMID: 35007612 DOI: 10.1016/j.chemosphere.2022.133564] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 12/31/2021] [Accepted: 01/06/2022] [Indexed: 06/14/2023]
Abstract
Quantum dots (QDs) are getting special attention due to their commendable optical properties and applications. Conventional metal-based QDs have toxicity and non-biodegradability issues, thus it becomes necessary to search for renewable precursor molecules for QDs synthesis. In recent years, biomass-based carbon rich QDs (CQDs) have been introduced which are mainly synthesised via carbonization (pyrolysis and hydrothermal treatment). These CQDs offered higher photostability, biocompatibility, low-toxicity, and easy tunability for physicochemical properties. Exceptional optical properties become a point of attraction for its multifaceted applications in various sectors like fabrication of electrodes and solar cells, conversion of solar energy to electricity, detection of pollutants, designing biosensors, etc. In recent years, a lot of work has been done in this field. This article will summarize these advancements along in a special context to biomass-based QDs and their applications in energy and the environment.
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Affiliation(s)
- Vishal Ahuja
- Department of Biotechnology, Himachal Pradesh University, Shimla, 171005, India
| | - Arvind Kumar Bhatt
- Department of Biotechnology, Himachal Pradesh University, Shimla, 171005, India
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, 382010, Gujarat, India
| | - Kwon-Young Choi
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, South Korea
| | - Sang-Hyoun Kim
- School of Civil and Environmental Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, 05029, Republic of Korea; Institute for Ubiquitous Information Technology and Applications, Seoul, 05029, Republic of Korea
| | - Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, 05029, Republic of Korea; Institute for Ubiquitous Information Technology and Applications, Seoul, 05029, Republic of Korea.
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12
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Park H, Jung W, Jang H, Namkoong K, Choi KY. One-Step RT-qPCR for Viral RNA Detection Using Digital Analysis. Front Bioeng Biotechnol 2022; 10:837838. [PMID: 35340840 PMCID: PMC8948435 DOI: 10.3389/fbioe.2022.837838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 01/24/2022] [Indexed: 11/20/2022] Open
Abstract
The rapid detection of viruses is becoming increasingly important to prevent widespread infections. However, virus detection via reverse transcription-quantitative polymerase chain reaction (RT-qPCR) is time-consuming, as it involves independent nucleic acid extraction and complementary DNA synthesis. This process limits the potential for rapid diagnosis and mass analysis, which are necessary to curtail viral spread. In this study, a simple and rapid thermolysis method was developed to circumvent the need for extraction and purification of viral RNA. The developed protocol was applied to one-chip digital PCR (OCdPCR), which allowed thermolysis, RT, and digital PCR in a single unit comprising 20,000 chambers of sub-nanoliter volume. Two viruses such as tobacco mosaic virus and cucumber mosaic virus were tested as model viral particles. First, the temperature, exposure time, and template concentration were optimized against tobacco mosaic viral particles, and the most efficient conditions were identified as 85°C, 5 min, and 0.01 μg/nL with a cycle threshold of approximately 33. Finally, the OCdPCR analysis yielded 1,130.2 copies/µL using 10−2 μg/nL of viral particles in a 30 min thermolysis-RT reaction at 70°C. This novel protocol shows promise as a quick, accurate, and precise method for large-scale viral analysis in the future.
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Affiliation(s)
- Hyuna Park
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon-si, South Korea
| | - Wonjong Jung
- Device Research Center, Advanced Sensor Lab, Samsung Advanced Institute of Technology, Samsung Electronics Co.Ltd., Suwon-si, South Korea
| | - Hyeongseok Jang
- Device Research Center, Advanced Sensor Lab, Samsung Advanced Institute of Technology, Samsung Electronics Co.Ltd., Suwon-si, South Korea
| | - Kak Namkoong
- Device Research Center, Advanced Sensor Lab, Samsung Advanced Institute of Technology, Samsung Electronics Co.Ltd., Suwon-si, South Korea
| | - Kwon-Young Choi
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon-si, South Korea
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13
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Lee HJ, Kim SG, Cho DH, Bhatia SK, Gurav R, Yang SY, Yang J, Jeon JM, Yoon JJ, Choi KY, Yang YH. Finding of novel lactate utilizing Bacillus sp. YHY22 and its evaluation for polyhydroxybutyrate (PHB) production. Int J Biol Macromol 2022; 201:653-661. [PMID: 35038470 DOI: 10.1016/j.ijbiomac.2022.01.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 12/20/2021] [Accepted: 01/06/2022] [Indexed: 11/05/2022]
Abstract
Polyhydroxyalkanoates (PHAs) and their derivatives are biopolymers that have the potential of replacing petroleum-based plastics and can be produced and degraded via bacterial metabolism. However, there are only a few studies on polyhydroxybutyrate (PHB) production using lactate, one of the major waste organic acids that could be implemented in the production of polylactic acid (PLA). Herein, we screened and characterized the PHA-producing microbial strains isolated from saltern soil from Docho Island (South Korea). Among the 24 identified microorganisms that can use lactate as a carbon source, Bacillus sp. YHY22, a newly reported strain, produced the highest amount of PHB: 4.05 g/L with 6.25 g/L dry cell weight, which is 64.7% PHB content under optimal production conditions. Bacillus sp. YHY22 could form the poly(3-hydroxybutyrate-co-3-hydroxyvalerate) copolymer with propionate addition. Moreover, Bacillus sp. YHY22 produced PHB in non-sterilized 2% lactate and 8% NaCl marine broth culture medium, suggesting that its production can occur in high salinity media without additional sterilization steps, rendering fermentation cost- and time-efficient.
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Affiliation(s)
- Hong-Ju Lee
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Su-Gyeong Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Do-Hyun Cho
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Ranjit Gurav
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | | | | | - Jong-Min Jeon
- Green & Sustainable Materials R&D Department, Korea Institute of Industrial Technology (KITECH), Republic of Korea
| | - Jeong-Jun Yoon
- Green & Sustainable Materials R&D Department, Korea Institute of Industrial Technology (KITECH), Republic of Korea
| | - Kwon-Young Choi
- Department of Environmental and Safety Engineering, College of Engineering, Ajou University, Republic of Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea; Ildong Bioscience Co., Republic of Korea.
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14
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Park H, Bak D, Jeon W, Jang M, Ahn JO, Choi KY. Engineering of CYP153A33 With Enhanced Ratio of Hydroxylation to Overoxidation Activity in Whole-Cell Biotransformation of Medium-Chain 1-Alkanols. Front Bioeng Biotechnol 2022; 9:817455. [PMID: 35059390 PMCID: PMC8764613 DOI: 10.3389/fbioe.2021.817455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 12/13/2021] [Indexed: 12/21/2022] Open
Abstract
α,ω-Dodecanediol is a versatile material that has been widely used not only as an adhesive and crosslinking reagent, but also as a building block in the pharmaceutical and polymer industries. The biosynthesis of α,ω-dodecanediol from fatty derivatives, such as dodecane and dodecanol, requires an ω-specific hydroxylation step using monooxygenase enzymes. An issue with the whole-cell biotransformation of 1-dodecanol using cytochrome P450 monooxygenase (CYP) with ω-specific hydroxylation activity was the low conversion and production of the over-oxidized product of dodecanoic acid. In this study, CYP153A33 from Marinobacter aquaeolei was engineered to obtain higher ω-specific hydroxylation activity through site-directed mutagenesis. The target residue was mutated to increase flux toward α,ω-dodecanediol synthesis, while reducing the generation of the overoxidation product of dodecanoic acid and α,ω-dodecanedioic acid. Among the evaluated variants, CYP153A33 P136A showed a significant increase in 1-dodecanol conversion, i.e., 71.2% (7.12 mM from 10 mM 1-dodecanol), with an increased hydroxylation to over-oxidation activity ratio, i.e., 32.4. Finally, the applicability of this engineered enzyme for ω-specific hydroxylation against several 1-alkanols, i.e., from C6 to C16, was investigated and discussed based on the structure-activity relationship.
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Affiliation(s)
- Hyuna Park
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, South Korea
| | - Doyeong Bak
- Department of Environmental and Safety Engineering, College of Engineering, Ajou University, Suwon, South Korea
| | - Wooyoung Jeon
- Biotechnology Process Engineering Center, Korea Research Institute of Biosceince and Biotechnology (KRIBB), Cheongju, South Korea
| | - Minjung Jang
- Biotechnology Process Engineering Center, Korea Research Institute of Biosceince and Biotechnology (KRIBB), Cheongju, South Korea
| | - Jung-Oh Ahn
- Biotechnology Process Engineering Center, Korea Research Institute of Biosceince and Biotechnology (KRIBB), Cheongju, South Korea.,Department of Bioprocess Engineering, University of Science and Technology (UST), Daejeon, South Korea
| | - Kwon-Young Choi
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, South Korea.,Department of Environmental and Safety Engineering, College of Engineering, Ajou University, Suwon, South Korea
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Ham S, Bhatia SK, Gurav R, Choi YK, Jeon JM, Yoon JJ, Choi KY, Ahn J, Kim HT, Yang YH. Gamma aminobutyric acid (GABA) production in Escherichia coli with pyridoxal kinase (pdxY) based regeneration system. Enzyme Microb Technol 2022; 155:109994. [DOI: 10.1016/j.enzmictec.2022.109994] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 01/12/2022] [Accepted: 01/13/2022] [Indexed: 11/03/2022]
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Abstract
Melanin is one of the most abundant pigments found in the biosphere. Owing to its high biocompatibility and diverse biological activities, it has been widely applied as a functional biomaterial in the cosmetic, pharmaceutical, biopolymer, and environmental fields. In this study, the production of melanin was comprehensively reviewed concerning bioconversion and isolation processes. First, several melanogenic microbes, including fungi and bacteria, were summarized. Melanin production was classified by host and melanin type and was analyzed by titers in g/L in addition to reaction conditions, including pH and temperature. The production was further interpreted using a space-time yields chart, which showed two distinct classifications in productivity, and reaction conditions were analyzed using a pH-temperature-titer chart. Next, the extraction process was summarized by crude and pure melanin preparation procedures, and the extraction yields were highlighted. Finally, the recent applications of melanin were briefly summarized, and prospects for further application and development in industrial applications were suggested.
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Affiliation(s)
- Kwon-Young Choi
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, South Korea.,Department of Environmental and Safety Engineering, College of Engineering, Ajou University, Suwon, South Korea
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17
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Gurav R, Bhatia SK, Choi TR, Choi YK, Kim HJ, Song HS, Park SL, Lee HS, Lee SM, Choi KY, Yang YH. Adsorptive removal of crude petroleum oil from water using floating pinewood biochar decorated with coconut oil-derived fatty acids. Sci Total Environ 2021; 781:146636. [PMID: 33784526 DOI: 10.1016/j.scitotenv.2021.146636] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 03/13/2021] [Accepted: 03/17/2021] [Indexed: 05/12/2023]
Abstract
The present investigation deals with the adsorptive removal of crude petroleum oil from the water surface using coconut oil-modified pinewood biochar. Biochar generated at higher pyrolysis temperature (700 °C) revealed higher fatty acid-binding efficiency responsible for the excellent hydrophobicity of the biochar. Fatty acids composition attached to the biochar produced at 700 °C was (mg g-1 BC) lauric acid (9.024), myristic acid (5.065), palmitic acid (2.769), capric acid (1.639), oleic acid (1.362), stearic acid (1.114), and linoleic acid (0.130). Simulation of the experimental adsorption data of pristine and modified pinewood biochar generated at 700 °C offered the best fit to pseudo-first-order kinetics (R2 > 0.97) and Langmuir isotherm model (R2 > 0.99) based on the highest regression coefficients. Consequently, the adsorption process was mainly driven by surface hydrophobic interactions including π-π electron-donor-acceptor between electron-rich (π-donor) polycyclic aromatic hydrocarbons from the crude oil and biochar (π-acceptor). A maximum adsorption capacity (Qmax) of 5.315 g g-1 was achieved by modified floating biochar within 60 min. Whereas the reusability testing revealed 49.39% and 51.40% was the adsorption efficiency of pristine and modified biochar at the fifth adsorption-desorption cycle.
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Affiliation(s)
- Ranjit Gurav
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Tae-Rim Choi
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Yong-Keun Choi
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Hyun Joong Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Hun-Suk Song
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Sol Lee Park
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Hye Soo Lee
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Sun Mi Lee
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Kwon-Young Choi
- Department of Environmental and Safety Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do 16499, Republic of Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea.
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18
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Madavi TB, Chauhan S, Jha M, Choi KY, Pamidimarri SDVN. Biohydrogen Machinery: Recent Insights, Genetic Fabrication, and Future Prospects. Chem Eng Technol 2021. [DOI: 10.1002/ceat.202000527] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Tanushree Baldeo Madavi
- Amity University Chhattisgarh Amity Institute of Biotechnology 493225 Raipur, Chhattisgarh India
| | - Sushma Chauhan
- Amity University Chhattisgarh Amity Institute of Biotechnology 493225 Raipur, Chhattisgarh India
| | - Meenakshi Jha
- Amity University Chhattisgarh Amity Institute of Biotechnology 493225 Raipur, Chhattisgarh India
| | - Kwon-Young Choi
- College of Engineering, Ajou University Department of Environmental Engineering Suwon Gyeonggi-do South Korea
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19
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Cha TY, Yong Y, Park H, Yun HJ, Jeon W, Ahn JO, Choi KY. Biosynthesis of C12 Fatty Alcohols by Whole Cell Biotransformation of C12 Derivatives Using Escherichia coli Two-cell Systems Expressing CAR and ADH. BIOTECHNOL BIOPROC E 2021. [DOI: 10.1007/s12257-020-0239-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Johnson J, Choi KY. Enzymatic utilization of oil and lignocellulosic biomass using halophilic marine bacteria Micrococcus luteus and Pseudoalteromonas peptidolytica. 3 Biotech 2021; 11:360. [PMID: 34295605 DOI: 10.1007/s13205-021-02902-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 06/19/2021] [Indexed: 11/30/2022] Open
Abstract
In this study, hydrolytic and oxidative activities of enzymes isolated from halophilic microbes were characterized and applied for biomass utilization. First, lipase from Micrococcus luteus, and peroxidase and laccase from Pseudoalteromonas phenolica and Pseudoalteromonas peptidolytica were selected and their catalytic activities were determined, respectively. The M. luteus lipase encoding gene was synthesized after codon-optimization and could be successfully expressed in Escherichia coli with the assist of the Tif chaperone protein. The purified enzyme showed 119.13 ± 7.18 and 34.42 ± 5.91 U/mL of lipase and esterase activities, respectively. Moreover, the M. luteus lipase was applied for hydrolysis of the triglycerides mixture, which resulted in 182.9 ± 11.1 mg/L/h of glycerol productivity. Next, peroxidase and laccase activities of P. phenolica and P. peptidolytica were determined, and extracellular enzymes of P. peptidolytica was applied for lignocellulosic biomass degradation, which resulted in 91.9 μg glucose/mg lignocellulose of production yields. Finally, the hydrolytic and oxidative activities of the enzymes from halophilic microbes could be further utilized for biomass treatment and biochemical production.
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Affiliation(s)
- Jervian Johnson
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do South Korea
| | - Kwon-Young Choi
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do South Korea
- Department of Environmental and Safety Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do South Korea
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21
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Leng Y, Chow DLY, Chui SK, Ip NSK, Chan SWC, Choi KY, Li AOC. Distribution of Urate Crystal Deposition in the Hands and Wrists of Patients with Chronic Gout. Hong Kong Journal of Radiology 2021. [DOI: 10.12809/hkjr2117173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Y Leng
- Department of Radiology, Tuen Mun Hospital, Hong Kong
| | - DLY Chow
- Department of Radiology, Tuen Mun Hospital, Hong Kong
| | - SK Chui
- Department of Radiology, Tuen Mun Hospital, Hong Kong
| | - NSK Ip
- Department of Radiology, Tuen Mun Hospital, Hong Kong
| | - SWC Chan
- Department of Radiology, Tuen Mun Hospital, Hong Kong
| | - KY Choi
- Department of Orthopaedics and Traumatology, Tuen Mun Hospital, Hong Kong
| | - AOC Li
- Department of Radiology, Tuen Mun Hospital, Hong Kong
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Lee SM, Lee HJ, Kim SH, Suh MJ, Cho JY, Ham S, Song HS, Bhatia SK, Gurav R, Jeon JM, Yoon JJ, Choi KY, Kim JS, Lee SH, Yang YH. Engineering of Shewanella marisflavi BBL25 for biomass-based polyhydroxybutyrate production and evaluation of its performance in electricity production. Int J Biol Macromol 2021; 183:1669-1675. [PMID: 34023371 DOI: 10.1016/j.ijbiomac.2021.05.105] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 04/27/2021] [Accepted: 05/15/2021] [Indexed: 01/13/2023]
Abstract
Polyhydroxybutyrate (PHB) is a biodegradable plastic with physical properties similar to petrochemically derived plastics. Here, Shewanella marisflavi BBL25 was engineered by inserting the pLW487 vector containing polyhydroxyalkanoates synthesis genes from Ralstonia eutropha H16. Under optimal conditions, the engineered S. marisflavi BBL25 produced 1.99 ± 0.05 g/L PHB from galactose. The strain showed high tolerance to various inhibitors and could utilize lignocellulosic biomass for PHB production. When barley straw hydrolysates were used as a carbon source, PHB production was 3.27 ± 0.19 g/L. In addition, PHB production under the microbial fuel cell system was performed to confirm electricity coproduction. The maximum electricity current output density was 1.71 mA/cm2, and dry cell weight (DCW) and PHB production were 11.4 g/L and 6.31 g/L, respectively. Our results demonstrated PHB production using various lignocellulosic biomass and the feasibility of PHB and electricity production, simultaneously, and it is the first example of PHB production in engineered Shewanella.
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Affiliation(s)
- Sun Mi Lee
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Hong-Ju Lee
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Sang Hyun Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Min Ju Suh
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Jang Yeon Cho
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Sion Ham
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Hun-Suk Song
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Ranjit Gurav
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea
| | - Jong-Min Jeon
- Green & Sustainable Materials R&D Department, Research Institute of Clean Manufacturing System, Korea Institute of Industrial Technology (KITECH), Republic of Korea
| | - Jeong-Jun Yoon
- Green & Sustainable Materials R&D Department, Research Institute of Clean Manufacturing System, Korea Institute of Industrial Technology (KITECH), Republic of Korea
| | - Kwon-Young Choi
- Department of Environmental and Safety Engineering, College of Engineering, Ajou University, Republic of Korea
| | - Jae-Seok Kim
- Department of Laboratory Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Republic of Korea
| | - Sang Ho Lee
- Department of Pharmacy, College of Pharmacy, Jeju National University, Republic of Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Republic of Korea.
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Bhatia SK, Otari SV, Jeon JM, Gurav R, Choi YK, Bhatia RK, Pugazhendhi A, Kumar V, Rajesh Banu J, Yoon JJ, Choi KY, Yang YH. Biowaste-to-bioplastic (polyhydroxyalkanoates): Conversion technologies, strategies, challenges, and perspective. Bioresour Technol 2021; 326:124733. [PMID: 33494006 DOI: 10.1016/j.biortech.2021.124733] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 01/11/2021] [Accepted: 01/13/2021] [Indexed: 05/06/2023]
Abstract
Biowaste management is a challenging job as it is high in nutrient content and its disposal in open may cause a serious environmental and health risk. Traditional technologies such as landfill, bio-composting, and incineration are used for biowaste management. To gain revenue from biowaste researchers around the world focusing on the integration of biowaste management with other commercial products such as volatile fatty acids (VFA), biohydrogen, and bioplastic (polyhydroxyalkanoates (PHA)), etc. PHA production from various biowastes such as lignocellulosic biomass, municipal waste, waste cooking oils, biodiesel industry waste, and syngas has been reported successfully. Various nutrient factors i.e., carbon and nitrogen source concentration and availability of dissolved oxygen are crucial factors for PHA production. This review is an attempt to summarize the recent advancements in PHA production from various biowaste, its downstream processing, and other challenges that need to overcome making bioplastic an alternate for synthetic plastic.
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Affiliation(s)
- Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea; Institute for Ubiquitous Information Technology and Application, Konkuk University, Seoul 05029, Republic of Korea
| | - Sachin V Otari
- Department of Biotechnology, Shivaji University, Vidyanagar Kolhapur 416004, Maharashtra, India
| | - Jong-Min Jeon
- Green & Sustainable Materials R&D Department, Research Institute of Clean Manufacturing System, Korea Institute of Industrial Technology (KITECH), Chungnam 331-825, Republic of Korea
| | - Ranjit Gurav
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Yong-Keun Choi
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Ravi Kant Bhatia
- Department of Biotechnology, Himachal Pradesh University, Shimla 171005, India
| | - Arivalagan Pugazhendhi
- Innovative Green Product Synthesis and Renewable Environment Development Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam
| | - Vinod Kumar
- Centre for Climate and Environmental Protection, School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK
| | - J Rajesh Banu
- Department of Life Sciences, Central University of Tamil Nadu, Neelakudi, Thiruvarur, Tamil Nadu, India
| | - Jeong-Jun Yoon
- Green & Sustainable Materials R&D Department, Research Institute of Clean Manufacturing System, Korea Institute of Industrial Technology (KITECH), Chungnam 331-825, Republic of Korea
| | - Kwon-Young Choi
- Department of Environmental and Safety Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do, Republic of Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea; Institute for Ubiquitous Information Technology and Application, Konkuk University, Seoul 05029, Republic of Korea.
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Abstract
Violacein is a pigment synthesized by Gram-negative bacteria such as Chromobacterium violaceum. It has garnered significant interest owing to its unique physiological and biological activities along with its synergistic effects with various antibiotics. In addition to C. violaceum, several microorganisms, including: Duganella sp., Pseudoalteromonas sp., Iodobacter sp., and Massilia sp., are known to produce violacein. Along with the identification of violacein-producing strains, the genetic regulation, quorum sensing mechanism, and sequence of the vio-operon involved in the biosynthesis of violacein have been elucidated. From an engineering perspective, the heterologous production of violacein using the genetically engineered Escherichia coli or Citrobacter freundii host has also been attempted. Genetic engineering of host cells involves the heterologous expression of genes involved in the vio operon and the optimization of metabolic pathways and gene regulation. Further, the crystallography of VioD and VioE was revealed, and mass production by enzyme engineering has been accelerated. In this review, we highlight the biologically assisted end-use applications of violacein (such as functional fabric development, nanoparticles, functional polymer composites, and sunscreen ingredients) and violacein activation mechanisms, production strains, and the results of mass production with engineered methods. The prospects for violacein research and engineering applications have also been discussed.
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Affiliation(s)
- HyunA Park
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, South Korea
| | - SeoA Park
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, South Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Kwon-Young Choi
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, South Korea.,Department of Environmental and Safety Engineering, College of Engineering, Ajou University, Suwon, South Korea
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Ahn SY, Jang S, Sudheer PDVN, Choi KY. Microbial Production of Melanin Pigments from Caffeic Acid and L-tyrosine Using Streptomyces glaucescens and FCS-ECH-Expressing Escherichia coli. Int J Mol Sci 2021; 22:2413. [PMID: 33673727 PMCID: PMC7957706 DOI: 10.3390/ijms22052413] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/21/2021] [Accepted: 02/24/2021] [Indexed: 12/23/2022] Open
Abstract
In this study, synthetic allomelanin was prepared from wild-type Streptomyces glaucescens and recombinant Escherichia coli BL21(DE3) strains. S. glaucescens could produce 125.25 ± 6.01 mg/L of melanin with a supply of 5 mM caffeic acid within 144 h. The ABTS radical scavenging capacity of S. glaucescens melanin was determined to be approximately 7.89 mg/mL of IC50 value, which was comparable to L-tyrosine-based eumelanin. The isolated melanin was used in cotton fabric dyeing, and the effect of copper ions, laccase enzyme treatment, and the dyeing cycle on dyeing performance was investigated. Interestingly, dyeing fastness was greatly improved upon treatment with the laccase enzyme during the cotton dyeing process. Besides, the supply of C5-diamine, which was reported to lead to more complex crosslinking between melanin units, to caffeic acid-based melanin synthesis was also investigated for higher production and novel functionalities. To facilitate the supply of caffeic acid and C5-diamine, E. coli strains expressing each or combinations of tyrosine ammonia lyase/p-coumarate 3-hydroxylase, feruloyl-CoA synthetase/enoyl-CoA hydratase/aldolase, and tyrosinase/lysine decarboxylase enzymes were prepared and investigated for their eumelanin, C5-diamine, and allomelanin production from L-tyrosine and L-lysine, respectively. Finally, H-NMR, FT-IR, and MALDI-TOF analysis of the synthetic melanin pigments were attempted to obtain the chemical information.
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Affiliation(s)
- Soo-Yeon Ahn
- Environment Research Institute, Ajou University, Suwon 16499, Gyeonggi-do, Korea;
| | - Seyoung Jang
- Department of Environmental and Safety Engineering, College of Engineering, Ajou University, Suwon 16499, Gyeonggi-do, Korea;
| | | | - Kwon-Young Choi
- Environment Research Institute, Ajou University, Suwon 16499, Gyeonggi-do, Korea;
- Department of Environmental and Safety Engineering, College of Engineering, Ajou University, Suwon 16499, Gyeonggi-do, Korea;
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon 16499, Gyeonggi-do, Korea
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26
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Park SA, Bhatia SK, Park HA, Kim SY, Sudheer PDVN, Yang YH, Choi KY. Bacillus subtilis as a robust host for biochemical production utilizing biomass. Crit Rev Biotechnol 2021; 41:827-848. [PMID: 33622141 DOI: 10.1080/07388551.2021.1888069] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Bacillus subtilis is regarded as a suitable host for biochemical production owing to its excellent growth and bioresource utilization characteristics. In addition, the distinct endogenous metabolic pathways and the suitability of the heterologous pathways have made B. subtilis a robust and promising host for producing biochemicals, such as: bioalcohols; bioorganic acids (lactic acids, α-ketoglutaric acid, and γ-aminobutyric acid); biopolymers (poly(γ-glutamic acid, polyhydroxyalkanoates (PHA), and polysaccharides and monosaccharides (N-acetylglucosamine, xylooligosaccharides, and hyaluronic acid)); and bioflocculants. Also for producing oligopeptides and functional peptides, owing to its efficient protein secretion system. Several metabolic and genetic engineering techniques, such as target gene overexpression and inactivation of bypass pathways, have led to the improvement in production titers and product selectivity. In this review article, recent progress in the utilization of robust B. subtilis-based host systems for biomass conversion and biochemical production has been highlighted, and the prospects of such host systems are suggested.
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Affiliation(s)
- Seo A Park
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, South Korea
| | - Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, Republic of Korea.,Institute for Ubiquitous Information Technology and Application, Konkuk University, Seoul, Republic of Korea
| | - Hyun A Park
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, South Korea
| | - Seo Yeong Kim
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, South Korea
| | | | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, Republic of Korea.,Institute for Ubiquitous Information Technology and Application, Konkuk University, Seoul, Republic of Korea
| | - Kwon-Young Choi
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, South Korea.,Department of Environmental and Safety Engineering, College of Engineering, Ajou University, Suwon, South Korea
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27
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Park YL, Choi TR, Han YH, Song HS, Park JY, Bhatia SK, Gurav R, Choi KY, Kim YG, Yang YH. Effects of osmolytes on salt resistance of Halomonas socia CKY01 and identification of osmolytes-related genes by genome sequencing. J Biotechnol 2020; 322:21-28. [DOI: 10.1016/j.jbiotec.2020.07.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 06/09/2020] [Accepted: 07/09/2020] [Indexed: 10/23/2022]
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28
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Song HS, Jeon JM, Bhatia SK, Choi TR, Lee SM, Park SL, Lee HS, Yoon JJ, Ahn J, Lee H, Brigham CJ, Choi KY, Yang YH. Enhanced isobutanol production by co-production of polyhydroxybutyrate and cofactor engineering. J Biotechnol 2020; 320:66-73. [DOI: 10.1016/j.jbiotec.2020.06.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 05/29/2020] [Accepted: 06/18/2020] [Indexed: 01/17/2023]
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Seo D, Choi KY. Heterologous production of pyomelanin biopolymer using 4-hydroxyphenylpyruvate dioxygenase isolated from Ralstonia pickettii in Escherichia coli. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107548] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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30
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Park H, Yang I, Choi M, Jang KS, Jung JC, Choi KY. Engineering of melanin biopolymer by co-expression of MelC tyrosinase with CYP102G4 monooxygenase: Structural composition understanding by 15 tesla FT-ICR MS analysis. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107530] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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31
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Park HA, Choi KY. α, ω-Oxyfunctionalization of C12 alkanes via whole-cell biocatalysis of CYP153A from Marinobacter aquaeolei and a new CYP from Nocardia farcinica IFM10152. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107524] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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32
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Lee J, Kim J, Kim H, Kim EJ, Jeong HJ, Choi KY, Kim BG. Characterization of a Tryptophan 6-Halogenase from Streptomyces albus and Its Regioselectivity Determinants. Chembiochem 2020; 21:1446-1452. [PMID: 31916339 DOI: 10.1002/cbic.201900723] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Indexed: 11/08/2022]
Abstract
Tryptophan halogenases are found in diverse organisms and catalyze regiospecific halogenation. They play an important role in the biosynthesis of halogenated indole alkaloids, which are biologically active and of therapeutic importance. Here, a tryptophan 6-halogenase (SatH) from Streptomyces albus was characterized by using a whole-cell reaction system in Escherichia coli. SatH showed substrate specificity for chloride and bromide ions, leading to regiospecific halogenation at the C6-position of l-tryptophan. In addition, SatH exhibited higher performance in bromination than that of previously reported tryptophan halogenases in the whole-cell reaction system. Through structure-based protein mutagenesis, it has been revealed that two consecutive residues, A78/V79 in SatH and G77/I78 in PyrH, are key determinants in the regioselectivity difference between tryptophan 6- and 5-halogenases. Substituting the AV with GI residues switched the regioselectivity of SatH by moving the orientation of tryptophan. These data contribute to an understanding of the key residues that determine the regioselectivity of tryptophan halogenases.
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Affiliation(s)
- Jeongchan Lee
- School of Chemical and Biological Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea.,Institute of Molecular Biology and Genetics, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Joonwon Kim
- Institute of Molecular Biology and Genetics, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea.,Institute of Engineering Research, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Hyun Kim
- School of Chemical and Biological Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea.,Institute of Molecular Biology and Genetics, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Eun-Jung Kim
- Institute of Molecular Biology and Genetics, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Hee-Jin Jeong
- Department of Biological and Chemical Engineering, Hongik University, Sejong-ro 2639, Jochiwon-eup, Sejong, 30016, Republic of Korea
| | - Kwon-Young Choi
- Department of Environmental Engineering, Ajou University, World cup-ro 206, Yeongtong-gu, Suwon, 16499, Republic of Korea
| | - Byung-Gee Kim
- School of Chemical and Biological Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea.,Institute of Molecular Biology and Genetics, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea.,Institute of Engineering Research, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea.,Institute of Bioengineering in Bio-Max, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea.,Interdisciplinary Program of Bioengineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea
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Song WS, Kim SM, Jo SH, Lee JS, Jeon HJ, Ko BJ, Choi KY, Yang YH, Kim YG. Multi-omics characterization of the osmotic stress resistance and protease activities of the halophilic bacterium Pseudoalteromonas phenolica in response to salt stress. RSC Adv 2020; 10:23792-23800. [PMID: 35517354 PMCID: PMC9054934 DOI: 10.1039/d0ra04034g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 06/17/2020] [Indexed: 02/02/2023] Open
Abstract
The halophilic bacterium Pseudoalteromonas phenolica is well known as a promising candidate that enables the recycling of organic wastes at high salinity. However, for industrial applications of P. phenolica further research is required to explore the biological mechanism for maximizing the activities and productivities of this bacterium. In this study, we investigated the osmotic stress resistance and specific protease activities of P. phenolica in a normal-salt medium (0.3 M NaCl) and high-salt medium (1 M NaCl) based on intra- and extracellular multi-omics approaches. Proteins related to betaine and proline biosynthesis were increased under high salt stress. The targeted metabolite analysis found that proline was overproduced and accumulated outside the cell at high salinity, and betaine was accumulated in the cell by activation of biosynthesis as well as uptake. In addition, extracellular serine proteases were shown to be upregulated in response to salt stress by the extracellular proteomic analysis. The specific proteolytic activity assay indicated that the activities of serine proteases, useful enzymes for the recycling of organic wastes, were increased remarkably under high salt stress. Our results suggest that betaine and proline are key osmoprotectant metabolites of P. phenolica, and they can be used for the improvement of protease production and P. phenolica activities for the recycling of high-salt organic wastes in the future. Multi-omics study showed the osmoprotective mechanism and changes of proteolytic activities of Pseudoalteromonas phenolica in response to salt stress.![]()
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Affiliation(s)
- Won-Suk Song
- School of Chemical and Biological Engineering
- Seoul National University
- Seoul 08826
- Republic of Korea
| | - Seong-Min Kim
- Department of Chemical Engineering
- Soongsil University
- Seoul 06978
- Republic of Korea
| | - Sung-Hyun Jo
- Department of Chemical Engineering
- Soongsil University
- Seoul 06978
- Republic of Korea
| | - Jae-Seung Lee
- Department of Chemical Engineering
- Soongsil University
- Seoul 06978
- Republic of Korea
| | - Hyo-Jin Jeon
- Department of Chemical Engineering
- Soongsil University
- Seoul 06978
- Republic of Korea
| | - Byoung Joon Ko
- New Drug Development Center
- Osong Medical Innovation Foundation
- Cheongju 28160
- Republic of Korea
| | - Kwon-Young Choi
- Department of Environmental Engineering
- College of Engineering
- Ajou University
- Suwon 16499
- Republic of Korea
| | - Yung-Hun Yang
- Department of Biological Engineering
- College of Engineering
- Konkuk University
- Seoul 05029
- Republic of Korea
| | - Yun-Gon Kim
- Department of Chemical Engineering
- Soongsil University
- Seoul 06978
- Republic of Korea
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34
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Bhatia SK, Gurav R, Choi TR, Han YH, Park YL, Park JY, Jung HR, Yang SY, Song HS, Kim SH, Choi KY, Yang YH. Bioconversion of barley straw lignin into biodiesel using Rhodococcus sp. YHY01. Bioresour Technol 2019; 289:121704. [PMID: 31276990 DOI: 10.1016/j.biortech.2019.121704] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 06/24/2019] [Accepted: 06/25/2019] [Indexed: 06/09/2023]
Abstract
Rhodococcus sp. YHY01 was studied to utilize various lignin derived aromatic compounds. It was able to utilize p-coumaric acid, cresol, and 2,6 dimethoxyphenol and resulted in biomass production i.e. 0.38 g dcw/L, 0.25 g dcw/L and 0.1 g dcw/L, and lipid accumulation i.e. 49%, 40%, 30%, respectively. The half maximal inhibitory concentration (IC50) value for p-coumaric acid (13.4 mM), cresol (7.9 mM), and 2,6 dimethoxyphenol (3.4 mM) was analyzed. Dimethyl sulfoxide (DMSO) solubilized barley straw lignin fraction was used as a carbon source for Rhodococcus sp. YHY01 and resulted in 0.130 g dcw/L with 39% w/w lipid accumulation. Major fatty acids were palmitic acid (C16:0) 51.87%, palmitoleic acid (C16:l) 14.90%, and oleic acid (C18:1) 13.76%, respectively. Properties of biodiesel produced from barley straw lignin were as iodine value (IV) 27.25, cetane number (CN) 65.57, cold filter plugging point (CFPP) 14.36, viscosity (υ) 3.81, and density (ρ) 0.86.
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Affiliation(s)
- Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea; Institute for Ubiquitous Information Technology and App1ications (CBRU), Konkuk University, Seoul, South Korea
| | - Ranjit Gurav
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Tae-Rim Choi
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Yeong Hoon Han
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Ye-Lim Park
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Jun Young Park
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Hye-Rim Jung
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Soo-Yeon Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Hun-Suk Song
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Sang-Hyoun Kim
- School of Civil and Environmental Engineering, Yonsei University, Seoul, South Korea
| | - Kwon-Young Choi
- Department of Environmental Engineering, Ajou University, Suwon, Gyeonggi-do, South Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea; Institute for Ubiquitous Information Technology and App1ications (CBRU), Konkuk University, Seoul, South Korea.
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35
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Shin HR, Bae HS, Kim BS, Yoon HI, Cho YD, Kim WJ, Choi KY, Lee YS, Woo KM, Baek JH, Ryoo HM. PIN1 is a new therapeutic target of craniosynostosis. Hum Mol Genet 2019; 27:3827-3839. [PMID: 30007339 PMCID: PMC6216213 DOI: 10.1093/hmg/ddy252] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 07/05/2018] [Indexed: 01/14/2023] Open
Abstract
Gain-of-function mutations in fibroblast growth factor receptors (FGFRs) cause congenital skeletal anomalies, including craniosynostosis (CS), which is characterized by the premature closure of craniofacial sutures. Apert syndrome (AS) is one of the severest forms of CS, and the only treatment is surgical expansion of prematurely fused sutures in infants. Previously, we demonstrated that the prolyl isomerase peptidyl-prolyl cis-trans isomerase interacting 1 (PIN1) plays a critical role in mediating FGFR signaling and that Pin1+/- mice exhibit delayed closure of cranial sutures. In this study, using both genetic and pharmacological approaches, we tested whether PIN1 modulation could be used as a therapeutic regimen against AS. In the genetic approach, we crossbred Fgfr2S252W/+, a mouse model of AS, and Pin1+/- mice. Downregulation of Pin1 gene dosage attenuated premature cranial suture closure and other phenotypes of AS in Fgfr2S252W/+ mutant mice. In the pharmacological approach, we intraperitoneally administered juglone, a PIN1 enzyme inhibitor, to pregnant Fgfr2S252W/+ mutant mice and found that this treatment successfully interrupted fetal development of AS phenotypes. Primary cultured osteoblasts from Fgfr2S252W/+ mutant mice expressed high levels of FGFR2 downstream target genes, but this phenotype was attenuated by PIN1 inhibition. Post-translational stabilization and activation of Runt-related transcription factor 2 (RUNX2) in Fgfr2S252W/+ osteoblasts were also attenuated by PIN1 inhibition. Based on these observations, we conclude that PIN1 enzyme activity is important for FGFR2-induced RUNX2 activation and craniofacial suture morphogenesis. Moreover, these findings highlight that juglone or other PIN1 inhibitors represent viable alternatives to surgical intervention for treatment of CS and other hyperostotic diseases.
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Affiliation(s)
- H R Shin
- BK21 Program, Department of Molecular Genetics and Dental Pharmacology and Therapeutics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - H S Bae
- BK21 Program, Department of Molecular Genetics and Dental Pharmacology and Therapeutics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - B S Kim
- BK21 Program, Department of Molecular Genetics and Dental Pharmacology and Therapeutics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - H I Yoon
- BK21 Program, Department of Molecular Genetics and Dental Pharmacology and Therapeutics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Y D Cho
- BK21 Program, Department of Molecular Genetics and Dental Pharmacology and Therapeutics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea.,Department of Periodontology, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - W J Kim
- BK21 Program, Department of Molecular Genetics and Dental Pharmacology and Therapeutics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - K Y Choi
- Department of Plastic and Reconstructive Surgery, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Y S Lee
- BK21 Program, Department of Molecular Genetics and Dental Pharmacology and Therapeutics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - K M Woo
- BK21 Program, Department of Molecular Genetics and Dental Pharmacology and Therapeutics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - J H Baek
- BK21 Program, Department of Molecular Genetics and Dental Pharmacology and Therapeutics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - H M Ryoo
- BK21 Program, Department of Molecular Genetics and Dental Pharmacology and Therapeutics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
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36
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Bhatia SK, Gurav R, Choi TR, Jung HR, Yang SY, Moon YM, Song HS, Jeon JM, Choi KY, Yang YH. Bioconversion of plant biomass hydrolysate into bioplastic (polyhydroxyalkanoates) using Ralstonia eutropha 5119. Bioresour Technol 2019; 271:306-315. [PMID: 30290323 DOI: 10.1016/j.biortech.2018.09.122] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 09/23/2018] [Accepted: 09/24/2018] [Indexed: 06/08/2023]
Abstract
Pretreatment of lignocellulosic biomass results in the formation of byproducts (furfural, hydroxymethylfurfural [HMF], vanillin, acetate etc.), which affect microbial growth and productivity. Furfural (0.02%), HMF (0.04%), and acetate (0.6%) showed positive effects on Ralstonia eutropha 5119 growth and polyhydroxyalkanoate (PHA) production, while vanillin exhibited negative effects. Response optimization and interaction studies between the variables glucose, ammonium chloride, furfural, HMF, and acetate using the response surface methodology resulted in maximum PHA production (2.1 g/L) at optimal variable values of 15.3 g/L, 0.43 g/L, 0.04 g/L, 0.05 g/L, and 2.34 g/L, respectively. Different lignocellulosic biomass hydrolysates (LBHs), including barley biomass hydrolysate (BBH), Miscanthus biomass hydrolysate (MBH), and pine biomass hydrolysate (PBH), were evaluated as potential carbon sources for R. eutropha 5119 and resulted in 1.8, 2.0, and 1.7 g/L PHA production, respectively. MBH proved the best carbon source, resulted in higher biomass (Yx/s, 0.31 g/g) and PHA (Yp/s, 0.14 g/g) yield.
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Affiliation(s)
- Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea; Institute for Ubiquitous Information Technology and Applications (CBRU), Konkuk University, Seoul 143-701, South Korea
| | - Ranjit Gurav
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Tae-Rim Choi
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Hye-Rim Jung
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Soo-Yeon Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Yu-Mi Moon
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Hun-Suk Song
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Jong-Min Jeon
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Kwon-Young Choi
- Department of Environmental Engineering, Ajou University, Suwon, Gyeonggi-do, South Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, South Korea; Institute for Ubiquitous Information Technology and Applications (CBRU), Konkuk University, Seoul 143-701, South Korea.
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37
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Ham K, Kim BS, Choi KY. Enhanced ammonium removal efficiency by ion exchange process of synthetic zeolite after Na + and heat pretreatment. Water Sci Technol 2018; 78:1417-1425. [PMID: 30388098 DOI: 10.2166/wst.2018.420] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this study, the optimum ammonium removal by activation of synthetic zeolite in the aqueous phase was investigated by batch ion exchange adsorption assay, and its surface changes due to activation modification was elucidated accordingly. Among the adsorbents examined, modified synthetic zeolite A-4 was the most effective at ammonium removal. The best activation condition of zeolite A-4 was established by Na+ and 300 °C heat treatment at pH around 6 to 7. Besides, the removal efficiency was investigated under various reaction conditions of pH, adsorbent dosage, stirring speed, and initial ammonium concentration. Finally, the adsorptive capacity Qe of synthetic zeolite A-4 activated by Na+ and heat treatment was determined as 31.9 mg/g at 1,000 mg-N/L of ammonium, whereas that of natural zeolite was measured as 16.0 mg/g. The obtained adsorption data was fitted to both Langmuir and Freundlich isotherm models, and the Langmuir isotherm model provided a better correspondence than the Freundlich isotherm. Finally, regeneration cycles for synthetic zeolite A-4 was determined for further industrial applications and efficient ammonium removal.
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Affiliation(s)
- Kyujin Ham
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do, South Korea E-mail:
| | - Beom Seok Kim
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do, South Korea E-mail:
| | - Kwon-Young Choi
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do, South Korea E-mail:
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Lee PG, Lee UJ, Song H, Choi KY, Kim BG. Recent advances in the microbial hydroxylation and reduction of soy isoflavones. FEMS Microbiol Lett 2018; 365:5089968. [PMID: 30184116 DOI: 10.1093/femsle/fny195] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 08/31/2018] [Indexed: 12/17/2023] Open
Abstract
Soy isoflavones are naturally occurring phytochemicals, which are biotransformed into functional derivatives through oxidative and reductive metabolic pathways of diverse microorganisms. Such representative derivatives, ortho-dihydroxyisoflavones (ODIs) and equols, have attracted great attention for their versatile health benefits since they were found from soybean fermented foods and human intestinal fluids. Recently, scientists in food technology, nutrition and microbiology began to understand their correct biosynthetic pathways and nutraceutical values, and have attempted to produce the valuable bioactive compounds using microbial fermentation and whole-cell/enzyme-based biotransformation. Furthermore, artificial design of microbial catalysts and/or protein engineering of oxidoreductases were also conducted to enhance production efficiency and regioselectivity of products. This minireview summarizes and introduces the past year's studies and recent advances in notable production of ODIs and equols, and provides information on available microbial species and their catalytic performance with perspectives on industrial application.
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Affiliation(s)
- Pyung-Gang Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul 08826, Republic of Korea
| | - Uk-Jae Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul 08826, Republic of Korea
| | - Hanbit Song
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul 08826, Republic of Korea
| | - Kwon-Young Choi
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon 16499, Republic of Korea
| | - Byung-Gee Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul 08826, Republic of Korea
- Bioengineering Institute, Seoul National University, Seoul 08826, South Korea
- Institute of Bioengineering Research, Seoul National University, Seoul 08826, Republic of Korea
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Sudheer PDVN, Seo D, Kim EJ, Chauhan S, Chunawala JR, Choi KY. Production of (Z)-11-(heptanoyloxy)undec-9-enoic acid from ricinoleic acid by utilizing crude glycerol as sole carbon source in engineered Escherichia coli expressing BVMO-ADH-FadL. Enzyme Microb Technol 2018; 119:45-51. [PMID: 30243386 DOI: 10.1016/j.enzmictec.2018.09.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 08/17/2018] [Accepted: 09/01/2018] [Indexed: 10/28/2022]
Abstract
Production of (Z)-11-(heptanoyloxy)undec-9-enoic acid from recinoleic acid was achieved by whole-cell biotransformation by Escherichia coli, utilizing crude glycerol as the sole carbon source. Whole-cell biotransformation resulted in ∼93% conversion of the substrate ricinoleic acid to (Z)-11-(heptanoyloxy)undec-9-enoic acid. We replaced the inducer-dependent promoter system (T7 and Rhm promotors) with a constitutive promoter system. This resulted in successful expression of ADH, FadL, and E6-BVMO, without costly inducer addition. Efficacy evaluation of the whole-cell biotransformation by inducer-free system by five different E. coli strains revealed that the highest product titer was accumulated in E. coli BW25113 strain. The engineered inducer-free system using crude glycerol as the sole carbon source showed competitive performance with induction systems. Optimized conditions resulted in the accumulation of 7.38 ± 0.42 mM (Z)-11-(heptanoyloxy)undec-9-enoic acid, and when 10 mM substrate was used as feed concentration, the product titer reached 2.35 g/L. The inducer-free construct with constitutive promoter system that this study established, which utilizes the waste by-product crude glycerol, will pave the way for the economic synthesis of many industrially important chemicals, like (Z)-11-(heptanoyloxy)undec-9-enoic acid.
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Affiliation(s)
- Pamidimarri D V N Sudheer
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do, South Korea
| | - Dahee Seo
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do, South Korea
| | - Eun-Joo Kim
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do, South Korea
| | - Sushma Chauhan
- Department of Chemical and Biochemical Engineering, Dongguk University-Seoul, Seoul 100-715, Republic of Korea
| | - J R Chunawala
- Process Design & Engineering Cell, Central Salt and Marine Chemicals Research Institute-CSIR, Bhavnagar, 364002, India
| | - Kwon-Young Choi
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do, South Korea.
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Johnson J, Yang YH, Lee DG, Yoon JJ, Choi KY. Expression, purification and characterization of halophilic protease Pph_Pro1 cloned from Pseudoalteromonas phenolica. Protein Expr Purif 2018; 152:46-55. [PMID: 30055246 DOI: 10.1016/j.pep.2018.07.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 06/07/2018] [Accepted: 07/24/2018] [Indexed: 01/29/2023]
Abstract
In this study, protease Pph_Pro1 from Pseudoalteromonas phenolica, possessing extracellular proteolytic activity and salt tolerance, was investigated for cloning, expression, and purification purposes. Through optimization, it was determined that optimum soluble recombinant expression was achieved when Pph_Pro1 was co-expressed with the pTf16 vector chaperone in LB medium supplemented with CaCl2. Pph_Pro1 was purified using osmotic shock and immobilized metal-affinity chromatography (IMAC). Isolated Pph_Pro1 activity was measured as 0.44 U/mg using casein as a substrate. Interestingly, Pph_Pro1 displayed halophilic, alkaliphilic, and unexpected thermostable properties. Furthermore, it was resistant to several hydrophilic and hydrophobic organic solvents. Substrate specificity and kinetic values such as Km and Vmax were determined with casein, bovine serum albumin (BSA), and algal waste protein as substrates, indicating that the Pph_Pro1 protease enzyme had a greater affinity for casein. Based on the remarkable characteristics of this Pph_Pro1 protease enzyme, it can potentially be utilized in many biotechnological industries.
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Affiliation(s)
- Jervian Johnson
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do, South Korea
| | - Yung-Hun Yang
- Department of Microbial Engineering, College of Engineering, Konkuk University, Seoul, South Korea
| | - Doo-Geun Lee
- Intelligent Sustainable Materials R&D Group, Korea Institute of Industrial Technology (KITECH), Chonan-si, Chungcheongnam-do, 31056, Republic of Korea
| | - Jeong-Jun Yoon
- Intelligent Sustainable Materials R&D Group, Korea Institute of Industrial Technology (KITECH), Chonan-si, Chungcheongnam-do, 31056, Republic of Korea
| | - Kwon-Young Choi
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do, South Korea.
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Lee PG, Lee SH, Kim J, Kim EJ, Choi KY, Kim BG. Polymeric solvent engineering for gram/liter scale production of a water-insoluble isoflavone derivative, (S)-equol. Appl Microbiol Biotechnol 2018; 102:6915-6921. [PMID: 29948112 DOI: 10.1007/s00253-018-9137-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 05/03/2018] [Accepted: 05/23/2018] [Indexed: 12/16/2022]
Abstract
A potent phytoestrogen, (S)-equol, is a promising isoflavone derivative drawing our great attention owing to its various biological and clinical benefits. Through selective activation of the estrogen receptor ERβ or androgen receptor, (S)-equol reduces menopausal symptoms, osteoporosis, skin aging, hair loss, and incidence of prostate or ovarian cancers without adverse effects. Traditional biosynthesis of (S)-equol exploited non-productive natural equol-producing anaerobic bacteria that mainly belong to Coriobacteriaceae isolated from human intestine. Recently, we developed a recombinant Escherichia coli strain which could convert daidzein into (S)-equol effectively under an aerobic condition. However, the yield was limited up to about the 200 mg/L level due to unknown reasons. In this study, we identified that the bottleneck of the limited production was the low solubility of isoflavone (i.e., 2.4 mg/L) in the reaction medium. In order to solve the solubility problem without harmful effect to the whole-cell catalyst, we applied commercial hydrophilic polymers (HPs) and a polar aprotic co-solvent in the reaction medium. Among the examined water-soluble polymers, polyvinylpyrrolidone (PVP)-40k was verified as the most promising supplement which increased daidzein solubility by 40 times and (S)-equol yield up to 1.22 g/L, the highest ever reported and the first g/L level biotransformation. Furthermore, PVP-40k was verified to significantly increase the solubilities of other water-insoluble natural polyphenols in aqueous solution. We suggest that addition of both HP and polar aprotic solvent in the reaction mixture is a powerful alternative to enhance production of polyphenolic chemicals rather than screening appropriate organic solvents for whole-cell catalysis of polyphenols.
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Affiliation(s)
- Pyung-Gang Lee
- School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.,Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - Sang-Hyuk Lee
- School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.,Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - Joonwon Kim
- School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.,Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - Eun-Jung Kim
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea.,Bio-MAX Institute, Seoul National University, Seoul, Republic of Korea
| | - Kwon-Young Choi
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, Republic of Korea
| | - Byung-Gee Kim
- School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea. .,Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea. .,Bioengineering Institute, Seoul National University, Seoul, Republic of Korea. .,Institute of Engineering Research, Seoul National University, Seoul, Republic of Korea.
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Sudheer PDVN, Yun J, Chauhan S, Kang TJ, Choi KY. Screening, expression, and characterization of Baeyer-Villiger monooxygenases for the production of 9-(nonanoyloxy)nonanoic acid from oleic acid. BIOTECHNOL BIOPROC E 2018. [DOI: 10.1007/s12257-017-0295-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Song HS, Seo HM, Jeon JM, Moon YM, Hong JW, Hong YG, Bhatia SK, Ahn J, Lee H, Kim W, Park YC, Choi KY, Kim YG, Yang YH. Enhanced isobutanol production from acetate by combinatorial overexpression of acetyl-CoA synthetase and anaplerotic enzymes in engineered Escherichia coli. Biotechnol Bioeng 2018; 115:1971-1978. [DOI: 10.1002/bit.26710] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Revised: 03/03/2018] [Accepted: 04/05/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Hun-Suk Song
- Department of Biological Engineering; College of Engineering; Konkuk University; Seoul Korea
| | - Hyung-Min Seo
- Department of Biological Engineering; College of Engineering; Konkuk University; Seoul Korea
| | - Jong-Min Jeon
- Department of Biological Engineering; College of Engineering; Konkuk University; Seoul Korea
| | - Yu-Mi Moon
- Department of Biological Engineering; College of Engineering; Konkuk University; Seoul Korea
| | - Ju Won Hong
- Department of Biological Engineering; College of Engineering; Konkuk University; Seoul Korea
| | - Yoon Gi Hong
- Department of Biological Engineering; College of Engineering; Konkuk University; Seoul Korea
| | - Shashi Kant Bhatia
- Department of Biological Engineering; College of Engineering; Konkuk University; Seoul Korea
- Institute for Ubiquitous Information Technology and Applications (CBRU); Konkuk University; Seoul South Korea
| | - Jungoh Ahn
- Biotechnology Process Engineering Center; Korea Research Institute Bioscience Biotechnology (KRIBB); Daejeon Korea
| | - Hongweon Lee
- Biotechnology Process Engineering Center; Korea Research Institute Bioscience Biotechnology (KRIBB); Daejeon Korea
| | - Wooseong Kim
- Division of Infectious Diseases; Rhode Island Hospital; Alpert Medical School of Brown University; Providence Rhode Island
| | - Yong-Cheol Park
- Department of Bio and Fermentation Convergence Technology; Kookmin University; Seoul Republic of Korea
| | - Kwon-Young Choi
- Department of Environmental Engineering; Ajou University; Suwon Gyeonggi-do Republic of Korea
| | - Yun-Gon Kim
- Department of Chemical Engineering; Soongsil University; Seoul Republic of Korea
| | - Yung-Hun Yang
- Department of Biological Engineering; College of Engineering; Konkuk University; Seoul Korea
- Institute for Ubiquitous Information Technology and Applications (CBRU); Konkuk University; Seoul South Korea
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Kim K, Choi KY, Kim JH, Park IS, Rho YS, Lee DJ. Base of tongue cancer-is it tongue cancer located at the base of the tongue, or is it a type of lingual tonsil cancer? The perspective from a genomic analysis. Int J Oral Maxillofac Surg 2018; 47:846-853. [PMID: 29452725 DOI: 10.1016/j.ijom.2018.01.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 12/05/2017] [Accepted: 01/26/2018] [Indexed: 11/26/2022]
Abstract
The aim of this study was to determine whether base of tongue (BOT) cancer is tongue cancer located at the base of the tongue or lingual tonsil cancer originating from tonsil tissue. This was a retrospective study using data from The Cancer Genome Atlas (TCGA). The genomic patterns of three primary cancers (BOT, oral tongue, and tonsil) were compared to determine their similarities and differences. Gene expression data (n=193; 26 BOT, 125 oral tongue, and 42 tonsil cases), copy number alteration data (n=142; 19 BOT, 96 oral tongue, and 27 tonsil cases), and somatic mutation data (n=187; 25 BOT, 122 oral tongue, and 40 tonsil cases) were analyzed using the t-test, heatmap analysis, and OncoPrint, respectively. Clinical information for the three tumour groups was included in the analyses. When using multiplatform analysis, BOT cancer showed nearly the same genomic pattern as tonsil cancer, but not oral tongue cancer. The χ2 test and survival analysis revealed that BOT cancer had the same clinical and survival patterns as tonsil cancer. In conclusion, BOT cancer showed a genomic pattern similar to that of tonsil cancer, but different to that of oral tongue cancer. Further prospective studies are warranted before the results of this study can be applied in a clinical setting.
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Affiliation(s)
- K Kim
- Department of Otolaryngology-Head and Neck Surgery, Hallym University Medical Centre, Seoul, Republic of Korea
| | - K Y Choi
- Department of Otolaryngology-Head and Neck Surgery, Hallym University Medical Centre, Seoul, Republic of Korea
| | - J H Kim
- Department of Otolaryngology-Head and Neck Surgery, Hallym University Medical Centre, Seoul, Republic of Korea
| | - I S Park
- Department of Otolaryngology-Head and Neck Surgery, Hallym University Medical Centre, Seoul, Republic of Korea
| | - Y S Rho
- Department of Otolaryngology-Head and Neck Surgery, Hallym University Medical Centre, Seoul, Republic of Korea
| | - D J Lee
- Department of Otolaryngology-Head and Neck Surgery, Hallym University Medical Centre, Seoul, Republic of Korea.
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Lee PG, Kim J, Kim EJ, Lee SH, Choi KY, Kazlauskas RJ, Kim BG. Biosynthesis of (-)-5-Hydroxy-equol and 5-Hydroxy-dehydroequol from Soy Isoflavone, Genistein Using Microbial Whole Cell Bioconversion. ACS Chem Biol 2017; 12:2883-2890. [PMID: 28985044 DOI: 10.1021/acschembio.7b00624] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Equols are isoflavandiols formed by reduction of soy isoflavones such as daidzein and genistein by gut microorganisms. These phytoestrogens are of interest for their various biological effects. We report biosynthesis from genistein to (-)-5-hydroxy-equol in recombinant E. coli expressing three reductases (daidzein reductase DZNR, dihidrodaidzein reductase DHDR, tetrahydrodaidzein reductase THDR) and a racemase (dihydrodaidzein racemase, DDRC) originating from the gut bacterium, Slackia isoflavoniconvertens. The biosynthesized 5-hydroxy-equol proved as an optically negative enantiomer, nonetheless it displayed an inverse circular dichroism spectrum to (S)-equol. Compartmentalized expression of DZNR and DDRC in one E. coli strain and DHDR and THDR in another increased the yield to 230 mg/L and the productivity to 38 mg/L/h. If the last reductase was missing, the intermediate spontaneously dehydrated to 5-hydroxy-dehydroequol in up to 99 mg/L yield. This novel isoflavene, previously not known to be synthesized in nature, was also detected in this biotransformation system. Although (S)-equol favors binding to human estrogen receptor (hER) β over hERα, (-)-5-hydroxy-equol showed the opposite preference. This study provides elucidation of the biosynthetic route of (-)-5-hydroxy-equol and measurement of its potent antagonistic character as a phytoestrogen for the first time.
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Affiliation(s)
- Pyung-Gang Lee
- School of Chemical
and Biological Engineering, Institute of Engineering Research, Seoul National University, Seoul, Republic of Korea
- Institute
of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - Joonwon Kim
- School of Chemical
and Biological Engineering, Institute of Engineering Research, Seoul National University, Seoul, Republic of Korea
- Institute
of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - Eun-Jung Kim
- Institute
of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - Sang-Hyuk Lee
- School of Chemical
and Biological Engineering, Institute of Engineering Research, Seoul National University, Seoul, Republic of Korea
- Institute
of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - Kwon-Young Choi
- Department of Environmental
Engineering, College of Engineering, Ajou University, Suwon, Republic of Korea
| | - Romas J. Kazlauskas
- Department of Biochemistry, Molecular Biology & Biophysics and The Biotechnology Institute, University of Minnesota, Saint Paul, Minnesota 55108, United States
| | - Byung-Gee Kim
- School of Chemical
and Biological Engineering, Institute of Engineering Research, Seoul National University, Seoul, Republic of Korea
- Institute
of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
- Institute
of Bioengineering, Seoul National University, Seoul, Republic of Korea
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Jung E, Park BG, Yoo HW, Kim J, Choi KY, Kim BG. Semi-rational engineering of CYP153A35 to enhance ω-hydroxylation activity toward palmitic acid. Appl Microbiol Biotechnol 2017; 102:269-277. [DOI: 10.1007/s00253-017-8584-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 09/01/2017] [Accepted: 10/09/2017] [Indexed: 01/14/2023]
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Jang S, Gang H, Kim BG, Choi KY. FCS and ECH dependent production of phenolic aldehyde and melanin pigment from l-tyrosine in Escherichia coli. Enzyme Microb Technol 2017; 112:59-64. [PMID: 29499781 DOI: 10.1016/j.enzmictec.2017.10.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 09/26/2017] [Accepted: 10/27/2017] [Indexed: 11/29/2022]
Abstract
In this study, we engineered E. coli cells to express l-tyrosine converting enzymes, including tyrosine ammonia-lyase (TAL), p-coumarate 3-hydroxylase (C3H), feruloyl-CoA synthetase (FCS), and enoyl-CoA hydratase/aldolase (ECH). A catabolic circuit, which consisted of the protocatechualdehyde and p-hydroxybenzaldehyde production pathways, was reconstituted through combinatorial production of discrete enzymes. First, cells expressing FCS and ECH could convert each 5mM of caffeic acid and ferulic acid into protocatechualdehyde (70.5%) and vanillin (96.5%), respectively. Second, TAL and C3H were co-expressed with FCS and ECH. This strain converted l-tyrosine into caffeic acid, which was then converted into protocatechualdehyde. Ascorbic acid was used as an inhibitor of catechol aldehyde-based melanin formation, and the production yields of protocatechualdehyde and p-hydroxybenzaldehyde were 31.0±5.6 and 24.0±4.2mg/L, respectively. Finally, caffeic acid-based melanin formation was observed with higher production rate of 40.9±6.2mg/L/h by co-expressing FCS and ECH in the presence of caffeic acid.
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Affiliation(s)
- Seyoung Jang
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do, South Korea
| | - Haemin Gang
- School of Chemical and Biological Engineering, Seoul National University, Seoul, South Korea
| | - Byung-Gee Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul, South Korea
| | - Kwon-Young Choi
- Department of Environmental Engineering, College of Engineering, Ajou University, Suwon, Gyeonggi-do, South Korea.
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Kim JH, Kim HJ, Kim YH, Jeon JM, Song HS, Kim J, No SY, Shin JH, Choi KY, Park KM, Yang YH. Functional Study of Lysine Decarboxylases from Klebsiella pneumoniae in Escherichia coli and Application of Whole Cell Bioconversion for Cadaverine Production. J Microbiol Biotechnol 2017; 26:1586-92. [PMID: 27291676 DOI: 10.4014/jmb.1602.02030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Klebsiella pneumoniae is a gram-negative, non-motile, rod-shaped, and encapsulated bacterium in the normal flora of the intestines, mouth, skin, and food, and has decarboxylation activity, which results in generation of diamines (cadaverine, agmatine, and putrescine). However, there is no specific information on the exact mechanism of decarboxylation in K. pnuemoniae. Specifically lysine decarboxylases that generate cadaverine with a wide range of applications has not been shown. Therefore, we performed a functional study of lysine decarboxylases. Enzymatic characteristics such as optimal pH, temperature, and substrates were examined by overexpressing and purifying CadA and LdcC. CadA and LdcC from K. pneumoniae had a preference for L-lysine, and an optimal reaction temperature of 37°C and an optimal pH of 7. Although the activity of purified CadA from K. pneumoniae was lower than that of CadA from E. coli, the activity of K. pneumoniae CadA in whole cell bioconversion was comparable to that of E. coli CadA, resulting in 90% lysine conversion to cadaverine with pyridoxal 5'-phosphate L-lysine.
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Affiliation(s)
- Jung-Ho Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Hyun Joong Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Yong Hyun Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Jong Min Jeon
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Hun Suk Song
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Junyoung Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - So-Young No
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Ji-Hyun Shin
- Department of Biological and Chemical Engineering, Hongik University, Sejong City 30016, Republic of Korea
| | - Kwon-Young Choi
- Department of Environmental Engineering, Ajou University, Suwon 16499, Republic of Korea
| | - Kyung Moon Park
- Department of Biological and Chemical Engineering, Hongik University, Sejong City 30016, Republic of Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
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Kim KJ, Kim YW, Park HG, Hwang CH, Park IY, Choi KY, Yang YH, Kim YH, Kim YG. A MALDI-MS-based quantitative glycoprofiling method on a 96-well plate platform. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2016.10.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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