1
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Liu HT, Weng CY, Xu SY, Li SF, Wang YJ, Zheng YG. Directed evolution of a carbonyl reductase LsCR for the enantioselective synthesis of (1S)-2-chloro-1-(3,4-difluorophenyl) ethanol. Bioorg Chem 2022; 127:105991. [DOI: 10.1016/j.bioorg.2022.105991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 11/25/2022]
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2
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Özdemir A, Şahin E. Optimization of asymmetric reduction conditions of 2-bromo-1-(naphthalen-2-yl)ethanone by Enterococcus faecium BY48 biocatalyst with A-optimal design-embedded model. Chirality 2022; 34:796-806. [PMID: 35218076 DOI: 10.1002/chir.23430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/10/2022] [Accepted: 02/13/2022] [Indexed: 11/10/2022]
Abstract
Aromatic α-halohydrins, especially 2-haloethanols, which are a common pharmacological precursor, may be readily transformed to chiral β-adrenergic receptor blockers. Studies including the synthesis of (S)-2-bromo-1-(naphthalen-2-yl)ethanol ((S)-2), an α-halohydrin, in high conversion, enantiomeric excess (ee), and yield by biocatalytic asymmetric reduction of 2-bromo-1-(naphthalen-2-yl)ethanone (1) are still insufficient. Moreover, asymmetric reduction of substrate 1 using a mathematical optimization method is not explored in the current literature. In this article, the four asymmetric bioreduction conditions, which are (1) pH, (2) temperature, (3) incubation period, and (4) agitation speed, of substrate 1 were optimized to obtain (S)-2 with A-optimal design-embedded model in the presence of Enterococcus faecium BY48. Optimum bioreduction conditions were determined by the A-optimal design-embedded model as follows: pH = 7, temperature = 25°C, incubation period = 24 h, and agitation speed = 200 rpm. And then, it was suggested that (S)-2 could be obtained with 98.88% ee and 100% conversion rate (cr) under these optimum conditions. As a result of the experimental reaction performed under the optimization conditions suggested by the model, (S)-2 was obtained with 99% ee and 100% cr. The study revealed that E. faecium BY48 could be used as a biocatalyst in asymmetric reduction reactions. Also, the A-optimal design-embedded model could have the great potential to obtain the optimum asymmetric bioreduction conditions.
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Affiliation(s)
- Akın Özdemir
- Faculty of Engineering, Department of Industrial Engineering, Ondokuz Mayıs University, Samsun, Turkey
| | - Engin Şahin
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Bayburt University, Bayburt, Turkey
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3
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Zachos I, Genth R, Sutiono S, Marczynski M, Lieleg O, Sieber V. Hot Flows: Evolving an Archaeal Glucose Dehydrogenase for Ultrastable Carba-NADP+ Using Microfluidics at Elevated Temperatures. ACS Catal 2022. [DOI: 10.1021/acscatal.1c04320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Ioannis Zachos
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, Campus Straubing for Biotechnology and Sustainability, Schulgasse 16, Straubing 94315, Germany
| | - Robert Genth
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, Campus Straubing for Biotechnology and Sustainability, Schulgasse 16, Straubing 94315, Germany
| | - Samuel Sutiono
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, Campus Straubing for Biotechnology and Sustainability, Schulgasse 16, Straubing 94315, Germany
| | - Matthias Marczynski
- TUM School of Engineering and Design, Department of Materials Engineering, Technical University of Munich, Boltzmannstraße 15, Garching 85748, Germany
- Center for Functional Protein Assemblies, Technical University of Munich, Ernst-Otto-Fischer Straße 8, Garching 85748, Germany
| | - Oliver Lieleg
- TUM School of Engineering and Design, Department of Materials Engineering, Technical University of Munich, Boltzmannstraße 15, Garching 85748, Germany
- Center for Functional Protein Assemblies, Technical University of Munich, Ernst-Otto-Fischer Straße 8, Garching 85748, Germany
| | - Volker Sieber
- Chair of Chemistry of Biogenic Resources, Technical University of Munich, Campus Straubing for Biotechnology and Sustainability, Schulgasse 16, Straubing 94315, Germany
- Catalytic Research Center, Technical University of Munich, Ernst-Otto-Fischer-Straße 1, Garching 85748, Germany
- SynBiofoundry@TUM, Technical University of Munich, Straubing 94315, Germany
- School of Chemistry and Molecular Biosciences, The University of Queensland, 68 Copper Road, St. Lucia 4072, Australia
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4
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Fauziah Ma'ruf I, Sasaki Y, Kerbs A, Nießer J, Sato Y, Taniguchi H, Okano K, Kitani S, Restiawaty E, Akhmaloka, Honda K. Heterologous gene expression and characterization of two serine hydroxymethyltransferases from Thermoplasma acidophilum. Extremophiles 2021; 25:393-402. [PMID: 34196829 DOI: 10.1007/s00792-021-01238-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 06/24/2021] [Indexed: 12/01/2022]
Abstract
Serine hydroxymethyltransferase (SHMT) and threonine aldolase are classified as fold type I pyridoxal-5'-phosphate-dependent enzymes and engaged in glycine biosynthesis from serine and threonine, respectively. The acidothermophilic archaeon Thermoplasma acidophilum possesses two distinct SHMT genes, while there is no gene encoding threonine aldolase in its genome. In the present study, the two SHMT genes (Ta0811 and Ta1509) were heterologously expressed in Escherichia coli and Thermococcus kodakarensis, respectively, and biochemical properties of their products were investigated. Ta1509 protein exhibited dual activities to catalyze tetrahydrofolate (THF)-dependent serine cleavage and THF-independent threonine cleavage, similar to other SHMTs reported to date. In contrast, the Ta0811 protein lacks amino acid residues involved in the THF-binding motif and catalyzes only the THF-independent cleavage of threonine. Kinetic analysis revealed that the threonine-cleavage activity of the Ta0811 protein was 3.5 times higher than the serine-cleavage activity of Ta1509 protein. In addition, mRNA expression of Ta0811 gene in T. acidophilum was approximately 20 times more abundant than that of Ta1509. These observations suggest that retroaldol cleavage of threonine, mediated by the Ta0811 protein, has a major role in glycine biosynthesis in T. acidophilum.
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Affiliation(s)
- Ilma Fauziah Ma'ruf
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Biochemistry Research Group, Faculty of Mathematics and Natural Sciences, Department of Chemistry, Institut Teknologi Bandung, Bandung, 40132, Indonesia
| | - Yuka Sasaki
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.,International Center for Biotechnology, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Anastasia Kerbs
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Genetics of Prokaryotes, Faculty of Biology and CeBiTec, Bielefeld University, 33617, Bielefeld, Germany
| | - Jochen Nießer
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Institute of Bio and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, 52425, Julich, Germany
| | - Yu Sato
- International Center for Biotechnology, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Hironori Taniguchi
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Kenji Okano
- International Center for Biotechnology, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Industrial Biotechnology Initiative Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Shigeru Kitani
- International Center for Biotechnology, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Industrial Biotechnology Initiative Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Elvi Restiawaty
- Chemical Engineering Process Design and Development Research Group, Faculty of Industrial Technology, Institut Teknologi Bandung, Bandung, 40132, Indonesia
| | - Akhmaloka
- Biochemistry Research Group, Faculty of Mathematics and Natural Sciences, Department of Chemistry, Institut Teknologi Bandung, Bandung, 40132, Indonesia.,Department of Chemistry, Faculty of Science and Computer, Universitas Pertamina, Jakarta, 12220, Indonesia
| | - Kohsuke Honda
- International Center for Biotechnology, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan. .,Industrial Biotechnology Initiative Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.
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5
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Zhan J, Shou C, Zheng Y, Chen Q, Pan J, Li C, Xu J. Discovery and Engineering of Bacterial (−)‐Isopiperitenol Dehydrogenases to Enhance (−)‐Menthol Precursor Biosynthesis. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jing‐Ru Zhan
- Laboratory of Biocatalysis and Synthetic Biotechnology State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Chao Shou
- Laboratory of Biocatalysis and Synthetic Biotechnology State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Yu‐Cong Zheng
- Laboratory of Biocatalysis and Synthetic Biotechnology State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Qi Chen
- Laboratory of Biocatalysis and Synthetic Biotechnology State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
- Shanghai Collaborative Innovation Center for Biomanufacturing School of Biotechnology East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Jiang Pan
- Laboratory of Biocatalysis and Synthetic Biotechnology State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
- Shanghai Collaborative Innovation Center for Biomanufacturing School of Biotechnology East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Chun‐Xiu Li
- Laboratory of Biocatalysis and Synthetic Biotechnology State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
- Shanghai Collaborative Innovation Center for Biomanufacturing School of Biotechnology East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Jian‐He Xu
- Laboratory of Biocatalysis and Synthetic Biotechnology State Key Laboratory of Bioreactor Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
- Shanghai Collaborative Innovation Center for Biomanufacturing School of Biotechnology East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
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6
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Çolak NS, Kalay E, Şahin E. Asymmetric reduction of prochiral aromatic and hetero aromatic ketones using whole-cell of Lactobacillus senmaizukei biocatalyst. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1931337] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Nida Sezin Çolak
- Faculty of Engineering, Department of Food Engineering, Bayburt University, Bayburt, Turkey
| | - Erbay Kalay
- Kars Vocational School, Kafkas University, Kars, Turkey
| | - Engin Şahin
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Bayburt University, Bayburt, Turkey
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7
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Lu Y, Dai H, Cheng P, Shi H, Tang L, Sun X, Ou Z. Regenerated coenzyme-based preparation of bienzyme-polymer nanoconjugates and their applications for the synthesis of ethyl (R)-2-hydroxy-4-phenylbutyrate. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-021-0775-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Asymmetric reduction of aromatic heterocyclic ketones with bio-based catalyst Lactobacillus kefiri P2. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-020-01364-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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9
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Han MN, Wang XM, Pei CH, Zhang C, Xu Z, Zhang HL, Li W. Green and scalable synthesis of chiral aromatic alcohols through an efficient biocatalytic system. Microb Biotechnol 2020; 14:444-452. [PMID: 32476251 PMCID: PMC7936284 DOI: 10.1111/1751-7915.13602] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 05/02/2020] [Accepted: 05/11/2020] [Indexed: 12/03/2022] Open
Abstract
Chiral aromatic alcohols have received much attention due to their widespread use in pharmaceutical industries. In the asymmetric synthesis processes, the excellent performance of alcohol dehydrogenase makes it a good choice for biocatalysts. In this study, a novel and robust medium‐chain alcohol dehydrogenase RhADH from Rhodococcus R6 was discovered and used to catalyse the asymmetric reduction of aromatic ketones to chiral aromatic alcohols. The reduction of 2‐hydroxyacetophenone (2‐HAP) to (R)‐(‐)‐1‐phenyl‐1,2‐ethanediol ((R)‐PED) was chosen as a template to evaluate its catalytic activity. A specific activity of 110 U mg−1 and a 99% purity of e.e. was achieved in the presence of NADH. An efficient bienzyme‐coupled catalytic system (RhADH and formate dehydrogenase, CpFDH) was established using a two‐phase strategy (dibutyl phthalate and buffer), which highly raised the tolerated substrate concentration (60 g l−1). Besides, a broad range of aromatic ketones were enantioselectively reduced to the corresponding chiral alcohols by this enzyme system with highly enantioselectivity. This system is of the potential to be applied at a commercial scale.
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Affiliation(s)
- Meng-Nan Han
- College of Chemistry and Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Hebei University, 180 Wusi East Road, Baoding, 071002, China
| | - Xu-Ming Wang
- College of Chemistry and Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Hebei University, 180 Wusi East Road, Baoding, 071002, China
| | - Chao-Hong Pei
- College of Chemistry and Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Hebei University, 180 Wusi East Road, Baoding, 071002, China
| | - Chao Zhang
- College of Chemistry and Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Hebei University, 180 Wusi East Road, Baoding, 071002, China
| | - Zhidong Xu
- Shijiazhuang Vince Pharma Tech Co Ltd Fangda Science and Technology Park, 266 Tianshan Street, Shijiazhuang City, China
| | - Hong-Lei Zhang
- College of Chemistry and Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Hebei University, 180 Wusi East Road, Baoding, 071002, China
| | - Wei Li
- College of Chemistry and Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Hebei University, 180 Wusi East Road, Baoding, 071002, China
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10
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Taşdemir V, Kalay E, Dertli E, Şahin E. Bio-catalytic asymmetric synthesis of β-adrenergic receptor blocker precursor: (R)-2-bromo-1-(naphthalen-2-yl)ethanol. BIOCATAL BIOTRANSFOR 2020. [DOI: 10.1080/10242422.2020.1768245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Volkan Taşdemir
- Science Research and Applied Center, Van Yüzüncü yıl University, Van, Turkey
| | - Erbay Kalay
- Kars Vacational School, Kafkas University, Kars, Turkey
| | - Enes Dertli
- Chemical and Metallurgical Engineering Faculty, Food Engineering Department, Yildiz Technical University, Esenler, Istanbul
| | - Engin Şahin
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Bayburt University, Bayburt, Turkey
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11
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Baydaş Y, Dertli E, Şahin E. Green synthesis of chiral aromatic alcohols with Lactobacillus kefiri P2 as a novel biocatalyst. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1729809] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Yasemin Baydaş
- Faculty of Engineering, Department of Food Engineering, Bayburt University, Bayburt, Turkey
| | - Enes Dertli
- Faculty of Engineering, Department of Food Engineering, Bayburt University, Bayburt, Turkey
| | - Engin Şahin
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Bayburt University, Bayburt, Turkey
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12
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Şahin E. Synthesis of enantiopure (
S
)‐6‐chlorochroman‐4‐ol using whole‐cell
Lactobacillus paracasei
biotransformation. Chirality 2020; 32:400-406. [DOI: 10.1002/chir.23177] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/09/2020] [Accepted: 01/09/2020] [Indexed: 12/21/2022]
Affiliation(s)
- Engin Şahin
- Faculty of Health Sciencies, Department of Nutrition and DieteticsBayburt University Bayburt Turkey
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13
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Significantly enhancing the biocatalytic synthesis of chiral alcohols by semi-rationally engineering an anti-Prelog carbonyl reductase from Acetobacter sp. CCTCC M209061. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.110613] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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Low-Level Organic Solvents Improve Multienzyme Whole-Cell Catalytic Synthesis of Myricetin-7-O-Glucuronide. Catalysts 2019. [DOI: 10.3390/catal9110970] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Multienzyme whole-cell biocatalysts are preferred in industrial applications, and two major concerns regarding the use of these biocatalysts, cell viability and cell membrane integrity, must be addressed. In this work, the transformation of myricetin to myricetin-7-O-glucuronide catalyzed by an engineered Escherichia coli strain was taken as the model reaction to examine the impacts of low-level organic solvents on whole-cell biocatalysis. Low-level organic solvents (2%, v/v) showed a significant increase (roughly 13-fold) in myricetin-7-O-glucuronide yields. No obvious compromises of cellular viability and integrity were observed by a flow cytometry assay or in the determination of extracellular protein leakage, suggesting the addition of low-level organic solvents accommodates whole E. coli cells. Furthermore, a scaled-up reaction was conducted to test the capability and efficiency of whole-cell catalysis in the presence of organic solvents. This study presents a promising and simple means to enhance the productivity of multienzyme whole-cell catalysis without losing the barrier functions of the cell membrane.
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15
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Asymmetric synthesis of tert-butyl (3R,5S)-6-chloro-3,5-dihydroxyhexanoate using a self-sufficient biocatalyst based on carbonyl reductase and cofactor co-immobilization. Bioprocess Biosyst Eng 2019; 43:21-31. [PMID: 31542820 DOI: 10.1007/s00449-019-02201-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 07/15/2019] [Accepted: 08/19/2019] [Indexed: 02/07/2023]
Abstract
tert-Butyl (3R,5S)-6-chloro-3,5-dihydroxyhexanoate [(3R,5S)-CDHH] is the key chiral intermediate to synthesize the side chain of the lipid-lowering drug rosuvastatin. Carbonyl reductases showed excellent activity for the biosynthesis of (3R,5S)-CDHH. The requirement of cofactor NADH/NADPH leads to high cost for the industrial application of carbonyl reductases. In this study, a self-sufficient biocatalyst based on carbonyl reductase and NADP+ co-immobilization strategy was developed on an amino resin carrier LX-1000HAA (SCR-NADP+@LX-1000HAA). The self-sufficient biocatalyst achieved in situ cofactor regeneration and showed the activity recovery of 77.93% and the specific activity of 70.45 U/g. Asymmetric synthesis of (3R,5S)-CDHH using SCR-NADP+@LX-1000HAA showed high enantioselectivity (> 99% e.e.) and yield (98.54%). Batch reactions were performed for ten cycles without extra addition of NADP+, and the total yield of (3R,5S)-CDHH achieved at 10.56 g/g biocatalyst. The present work demonstrated the potential of the self-sufficient biocatalyst for the asymmetric biosynthesis of rosuvastatin intermediate.
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16
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Adebar N, Choi JE, Schober L, Miyake R, Iura T, Kawabata H, Gröger H. Overcoming Work‐Up Limitations of Biphasic Biocatalytic Reaction Mixtures Through Liquid‐Liquid Segmented Flow Processes. ChemCatChem 2019. [DOI: 10.1002/cctc.201901107] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Niklas Adebar
- Chair of Industrial Organic Chemistry and Biotechnology Faculty of ChemistryBielefeld University Universitätsstr. 25 33615 Bielefeld Germany
| | - Ji Eun Choi
- Chair of Industrial Organic Chemistry and Biotechnology Faculty of ChemistryBielefeld University Universitätsstr. 25 33615 Bielefeld Germany
| | - Lukas Schober
- Chair of Industrial Organic Chemistry and Biotechnology Faculty of ChemistryBielefeld University Universitätsstr. 25 33615 Bielefeld Germany
| | - Ryoma Miyake
- Science & Innovation CenterMitsubishi Chemical Corporation 1000 Kamoshida-cho, Aoba-ku Yokohama 227-8502 Japan
| | - Takanobu Iura
- Science & Innovation CenterMitsubishi Chemical Corporation 1000 Kamoshida-cho, Aoba-ku Yokohama 227-8502 Japan
- API Corporation 13-4 Uchikanda 1-chome Chiyoda-ku Tokyo 101-0047 Japan
| | - Hiroshi Kawabata
- Science & Innovation CenterMitsubishi Chemical Corporation 1000 Kamoshida-cho, Aoba-ku Yokohama 227-8502 Japan
- API Corporation 13-4 Uchikanda 1-chome Chiyoda-ku Tokyo 101-0047 Japan
| | - Harald Gröger
- Chair of Industrial Organic Chemistry and Biotechnology Faculty of ChemistryBielefeld University Universitätsstr. 25 33615 Bielefeld Germany
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17
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Expression of engineered carbonyl reductase from Ogataea minuta in Rhodococcus opacus and its application to whole-cell bioconversion in anhydrous solvents. J Biosci Bioeng 2018; 127:145-149. [PMID: 30075940 DOI: 10.1016/j.jbiosc.2018.07.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 07/05/2018] [Accepted: 07/10/2018] [Indexed: 11/23/2022]
Abstract
The carbonyl reductase from the methylotrophic yeast Ogataea minuta can catalyze the regio- and enantio-selective reduction of prochiral ketones to chiral alcohols, and is available for industrial manufacturing of statin drugs. We previously conducted a directed evolution experiment of the enzyme, and obtained a mutant (OCR_V166A) with improved tolerance to organic solvents. This expanded the applicability of the enzyme to the bioconversion of water-insoluble compounds (Honda et al., J. Biosci. Bioeng., 123, 673-678, 2017). In the present study, we expressed OCR_V166A in Rhodococcus opacus cells, which have a highly lipophilic surface structure and are dispersible in anhydrous organic solvents, and developed a whole-cell biocatalyst which can function in an organic-solvent-based reaction medium. The secondary alcohol dehydrogenase from Thermoanaerobacter ethanolicus (TeADH) was employed as an NADPH-regenerating enzyme and co-expressed with OCR_V166A in R. opacus. The whole-cell bioconversion of 2,2,2-trifluoroacetophenone to α-(trifluoromethyl)benzyl alcohol was performed in organic solvents, including isopropanol, isobutanol, and cyclohexanol, which served both as reaction media and as substrates for TeADH. The type of organic solvents markedly affected not only the product titer but also the enantio-purity of the product. When isobutanol was used as the reaction medium, the whole-cell biocatalyst showed higher stability than the isolated enzyme. Consequently, a high concentration (1 M) of the substrate was converted to the product with an overall conversion yield of 81% (mol/mol) in 24 h.
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