1
|
Chen W, Sun L, Wu X, Xu Z, Chen CY, Liu S, Chen H, Sun B, Dong M. Heterologous Expression of Ketoreductase ChKRED20 Mutant in Pichia pastoris and Bioreductive Production of ( R)-1, 3-Butanediol. Molecules 2024; 29:4393. [PMID: 39339388 PMCID: PMC11433769 DOI: 10.3390/molecules29184393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2024] [Revised: 09/13/2024] [Accepted: 09/13/2024] [Indexed: 09/30/2024] Open
Abstract
(R)-1, 3-Butanediol (1, 3-BDO) is an important intermediate in the synthesis of aromatics, pheromones, insecticides, and beta-lactam antibiotics. The ChKRED20 is a robust NADH-dependent ketoreductase identified from Chryseobacterium sp. CA49. We obtained a ChKRED20 mutant (M12) through directed evolutionary screening of ChKRED20, the mutant with significantly improved activity to asymmetrically reduce 4-hydroxy-2-butanone (4H2B) to (R)-1, 3-BDO. So far, both ChKRED20 and its mutants have been expressed in intracellular in E. coli, the process of purification after intracellular expression is complicated, which leads to high cost. Here, we expressed M12 by constructing multicopy expression strains in P. pastoris, and the target protein yield was 302 mg/L in shake-flask fermentation and approximately 3.5 g/L in high-density fermentation. The recombinant M12 showed optimal enzyme activity at 30 °C and had high activity within a broad pH range of 6.0-8.0, and also showed high thermal stability. The recombinant M12 was further used for the reduction of 4H2B to (R)-1, 3-BDO, and 98.9% yield was achieved at 4540 mM 4H2B. The crude M12 enzyme extract was found to catalyze the bioreductive production of (R)-1, 3-BDO with excellent stereoselectivity (ee > 99%) and meet the production requirements. Our research shows that the M12 mutant can be used for the synthesis of (R)-1, 3-BDO, and the P. pastoris expression system is an ideal platform for the large-scale, low-cost preparation of ChKRED20 or its mutants, which may have applications in industrial settings.
Collapse
Affiliation(s)
- Wanping Chen
- School of Pharmacy, Qingdao University, Qingdao 266021, China
- Enzymaster (Ningbo) Bio-Engineering Co., Ltd., Ningbo 315100, China
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Lei Sun
- Enzymaster (Ningbo) Bio-Engineering Co., Ltd., Ningbo 315100, China
| | - Xinwei Wu
- Enzymaster (Ningbo) Bio-Engineering Co., Ltd., Ningbo 315100, China
| | - Zhenni Xu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Chin-Yu Chen
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Sitong Liu
- Enzymaster (Ningbo) Bio-Engineering Co., Ltd., Ningbo 315100, China
| | - Haibin Chen
- Enzymaster (Ningbo) Bio-Engineering Co., Ltd., Ningbo 315100, China
| | - Baoguo Sun
- Enzymaster (Ningbo) Bio-Engineering Co., Ltd., Ningbo 315100, China
| | - Mingxin Dong
- School of Pharmacy, Qingdao University, Qingdao 266021, China
| |
Collapse
|
2
|
Lu WF, Yu Y, Lin RD, Yao Y, Liu Y, Wu ZL, Liu YH, Wang N. Enantioselective biosynthesis of (R)-γ-hydroxy sulfides via a one-pot approach with ChKRED20. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
3
|
Thermostabilizing ketoreductase ChKRED20 by consensus mutagenesis at dimeric interfaces. Enzyme Microb Technol 2022; 158:110052. [DOI: 10.1016/j.enzmictec.2022.110052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 03/15/2022] [Accepted: 04/17/2022] [Indexed: 11/19/2022]
|
4
|
Xing X, Liu Y, Shi ML, Li K, Fan XY, Wu ZL, Wang N, Yu XQ. Preparation of chiral aryl alcohols: a controllable enzymatic strategy via light-driven NAD(P)H regeneration. NEW J CHEM 2022. [DOI: 10.1039/d1nj06000g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Controllable and mild photoenzymatic production of chiral alcohols was realized by coupling a photochemical NAD(P)H regeneration system with (R)- or (S)-selective ketoreductases.
Collapse
Affiliation(s)
- Xiu Xing
- Key Laboratory of Green Chemistry Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Yan Liu
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, P. R. China
| | - Ming-Liang Shi
- Key Laboratory of Green Chemistry Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Kun Li
- Key Laboratory of Green Chemistry Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Xin-Yue Fan
- Key Laboratory of Green Chemistry Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Zhong-Liu Wu
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, P. R. China
| | - Na Wang
- Key Laboratory of Green Chemistry Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| |
Collapse
|
5
|
Wang T, Yang K, Tian Q, Han R, Zhang X, Li A, Zhang L. Acetoacetyl-CoA reductase PhaB as an excellent anti-Prelog biocatalyst for the synthesis of chiral β-hydroxyl ester and the molecular basis of its catalytic performance. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
6
|
Xue F, Li C, Xu Q. Biocatalytic approaches for the synthesis of optically pure vic-halohydrins. Appl Microbiol Biotechnol 2021; 105:3411-3421. [PMID: 33851239 DOI: 10.1007/s00253-021-11266-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 03/28/2021] [Accepted: 04/04/2021] [Indexed: 11/30/2022]
Abstract
Enantiopure vicinal halohydrins (vic-halohydrins) are highly valuable building blocks for the synthesis of many different natural products and pharmaceuticals, and biocatalytic methods for their synthesis have received considerable interest. This review emphasizes the application of biocatalytic approaches as an efficient alternative or complement to conventional chemical reactions, with a special focus on the asymmetric reductions catalyzed by ketoreductases, kinetic resolution catalyzed using lipases or esterases, stereoselective biotransformation catalyzed by halohydrin dehalogenases, asymmetric hydroxylation catalyzed by cytochrome P450 monooxygenases, asymmetric dehalogenation catalyzed by haloalkane dehalogenases, and aldehyde condensation catalyzed by aldolases. Although many chiral vic-halohydrins have been successfully synthesized using wild-type biocatalysts, their enantioselectivity is often too low for enantiopure synthesis. To overcome these limitations, catalytic properties of wild-type enzymes have been improved by rational and semi-rational protein design or directed evolution. This review briefly introduces the research status in this field, highlighting aspects of basic academic research in the biocatalytic synthesis of optically active vic-halohydrins by employing such unconventional approaches. KEY POINTS: • Outlines the enzymatic strategies for the production of enantiopure vic-halohydrins • Highlights recent advances in biocatalytic production of enantiopure vic-halohydrins • Provide guidance for efficient preparation of enantiopure vic-halohydrins.
Collapse
Affiliation(s)
- Feng Xue
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, NO 1, Wenyuan Road, Nanjing, 210023, People's Republic of China
| | - Changfan Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, NO 1, Wenyuan Road, Nanjing, 210023, People's Republic of China
| | - Qing Xu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, NO 1, Wenyuan Road, Nanjing, 210023, People's Republic of China.
| |
Collapse
|
7
|
Hollmann F, Opperman DJ, Paul CE. Biocatalytic Reduction Reactions from a Chemist's Perspective. Angew Chem Int Ed Engl 2021; 60:5644-5665. [PMID: 32330347 PMCID: PMC7983917 DOI: 10.1002/anie.202001876] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Indexed: 11/09/2022]
Abstract
Reductions play a key role in organic synthesis, producing chiral products with new functionalities. Enzymes can catalyse such reactions with exquisite stereo-, regio- and chemoselectivity, leading the way to alternative shorter classical synthetic routes towards not only high-added-value compounds but also bulk chemicals. In this review we describe the synthetic state-of-the-art and potential of enzymes that catalyse reductions, ranging from carbonyl, enone and aromatic reductions to reductive aminations.
Collapse
Affiliation(s)
- Frank Hollmann
- Department of BiotechnologyDelft University of TechnologyVan der Maasweg 92629 HZDelftThe Netherlands
- Department of BiotechnologyUniversity of the Free State205 Nelson Mandela DriveBloemfontein9300South Africa
| | - Diederik J. Opperman
- Department of BiotechnologyUniversity of the Free State205 Nelson Mandela DriveBloemfontein9300South Africa
| | - Caroline E. Paul
- Department of BiotechnologyDelft University of TechnologyVan der Maasweg 92629 HZDelftThe Netherlands
| |
Collapse
|
8
|
|
9
|
Voss M, Küng R, Hayashi T, Jonczyk M, Niklaus M, Iding H, Wetzl D, Buller R. Multi‐faceted Set‐up of a Diverse Ketoreductase Library Enables the Synthesis of Pharmaceutically‐relevant Secondary Alcohols. ChemCatChem 2021. [DOI: 10.1002/cctc.202001871] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Moritz Voss
- Competence Center for Biocatalysis Institute for Chemistry and Biotechnology Zurich University of Applied Sciences Einsiedlerstrasse 31 8820 Wädenswil Switzerland
| | - Robin Küng
- Competence Center for Biocatalysis Institute for Chemistry and Biotechnology Zurich University of Applied Sciences Einsiedlerstrasse 31 8820 Wädenswil Switzerland
- Present address: Fisher Clinical Services Thermo Fisher Scientific Steinbühlweg 69 4123 Allschwil Switzerland
| | - Takahiro Hayashi
- Competence Center for Biocatalysis Institute for Chemistry and Biotechnology Zurich University of Applied Sciences Einsiedlerstrasse 31 8820 Wädenswil Switzerland
- Present address: Science & Innovation Center Mitsubishi Chemical Corporation 1000 Kamoshidacho Aoba ward, Yokohama Kanagawa 227-8502 Japan
| | - Magdalena Jonczyk
- Competence Center for Biocatalysis Institute for Chemistry and Biotechnology Zurich University of Applied Sciences Einsiedlerstrasse 31 8820 Wädenswil Switzerland
| | - Michael Niklaus
- Competence Center for Biocatalysis Institute for Chemistry and Biotechnology Zurich University of Applied Sciences Einsiedlerstrasse 31 8820 Wädenswil Switzerland
| | - Hans Iding
- Process Chemistry & Catalysis F. Hoffmann-La Roche Ltd. CH-4070 Basel Switzerland
| | - Dennis Wetzl
- Process Chemistry & Catalysis F. Hoffmann-La Roche Ltd. CH-4070 Basel Switzerland
| | - Rebecca Buller
- Competence Center for Biocatalysis Institute for Chemistry and Biotechnology Zurich University of Applied Sciences Einsiedlerstrasse 31 8820 Wädenswil Switzerland
| |
Collapse
|
10
|
Hollmann F, Opperman DJ, Paul CE. Biokatalytische Reduktionen aus der Sicht eines Chemikers. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001876] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Frank Hollmann
- Department of Biotechnology Delft University of Technology Van der Maasweg 9 2629 HZ Delft Niederlande
- Department of Biotechnology University of the Free State 205 Nelson Mandela Drive Bloemfontein 9300 Südafrika
| | - Diederik J. Opperman
- Department of Biotechnology University of the Free State 205 Nelson Mandela Drive Bloemfontein 9300 Südafrika
| | - Caroline E. Paul
- Department of Biotechnology Delft University of Technology Van der Maasweg 9 2629 HZ Delft Niederlande
| |
Collapse
|
11
|
Yang Z, Ye W, Xie Y, Liu Q, Chen R, Wang H, Wei D. Efficient Asymmetric Synthesis of Ethyl (S)-4-Chloro-3-hydroxybutyrate Using Alcohol Dehydrogenase SmADH31 with High Tolerance of Substrate and Product in a Monophasic Aqueous System. Org Process Res Dev 2020. [DOI: 10.1021/acs.oprd.0c00088] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Zeyu Yang
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai 200237, PR China
| | - Wenjie Ye
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai 200237, PR China
| | - Youyu Xie
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai 200237, PR China
| | - Qinghai Liu
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai 200237, PR China
| | - Rong Chen
- School of Medicine, Hangzhou Normal University, Hangzhou 311121, PR China
| | - Hualei Wang
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai 200237, PR China
| | - Dongzhi Wei
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai 200237, PR China
| |
Collapse
|
12
|
Cui C, Guo C, Lin H, Ding ZY, Liu Y, Wu ZL. Functional characterization of an (R)-selective styrene monooxygenase from streptomyces sp. NRRL S-31. Enzyme Microb Technol 2019; 132:109391. [PMID: 31731956 DOI: 10.1016/j.enzmictec.2019.109391] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 08/01/2019] [Accepted: 08/04/2019] [Indexed: 12/14/2022]
Abstract
Styrene monooxygenases (SMOs) are two-component enzymes known to catalyze the epoxidation of styrene to (S)-styrene oxide. In this work, we identified a new oxygenase component, named StStyA, from the genome of Streptomyces sp. NRRL S-31. StStyA displayed complementary stereoselectivity to all of the known SMOs when coupled with a known reductase component (PsStyB), which made it the first natural SMO that produces (R)-styrene oxide. Accordingly, a plasmid co-expressing StStyA and PsStyB was constructed, which led to an artificial two-component SMO, named StStyA/B. When applied in the bio-epoxidation of nine aromatic alkenes, the enzyme showed activity toward five alkenes, and consistently displayed (R)-selectivity. Excellent stereoselectivity was achieved for all five substrates with enantiomeric excesses ranging from 91% to >99%ee.
Collapse
Affiliation(s)
- Can Cui
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu 610041, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chao Guo
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu 610041, China
| | - Hui Lin
- College of Life Sciences, Henan Agricultural University, 95 Wenhua Road, Zhengzhou 450002, China
| | - Zhao-Yun Ding
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu 610041, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan Liu
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu 610041, China
| | - Zhong-Liu Wu
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu 610041, China.
| |
Collapse
|
13
|
Li TB, Zhao FJ, Liu Z, Jin Y, Liu Y, Pei XQ, Zhang ZG, Wang G, Wu ZL. Structure-guided engineering of ChKRED20 from Chryseobacterium sp. CA49 for asymmetric reduction of aryl ketoesters. Enzyme Microb Technol 2019; 125:29-36. [PMID: 30885322 DOI: 10.1016/j.enzmictec.2019.03.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 02/22/2019] [Accepted: 03/02/2019] [Indexed: 10/27/2022]
Abstract
ChKRED20 is a robust NADH-dependent ketoreductase identified from the genome of Chryseobacterium sp. CA49 that can use 2-propanol as the ultimate reducing agent. The wild-type can reduce over 100 g/l ketones for some pharmaceutical relevant substrates, exhibiting a remarkable potential for industrial application. In this work, to overcome the limitation of ChKRED20 to aryl ketoesters, we first refined the X-ray crystal structure of ChKRED20/NAD+ complex at a resolution of 1.6 Å, and then performed three rounds of iterative saturation mutagenesis at critical amino acid sites to reshape the active cavity of the enzyme. For methyl 2-oxo-2-phenylacetate and ethyl 3-oxo-3-phenylpropanoate, several gain-of-activity mutants were achieved, and for ethyl 2-oxo-4-phenylbutanoate, improved mutants were achieved with kcat/Km increasing to 196-fold of the wild-type. All three substrates were completely reduced at 100 g/l loading catalyzed with selected ChKRED20 mutants, and deliver the corresponding chiral alcohols with >90% isolated yield and 97 - >99%ee.
Collapse
Affiliation(s)
- Tong-Biao Li
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China; Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu, 610041, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Feng-Jiao Zhao
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China; Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China; Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu, 610041, China
| | - Zhongchuan Liu
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China; Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu, 610041, China
| | - Yun Jin
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China; Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu, 610041, China
| | - Yan Liu
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China; Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu, 610041, China
| | - Xiao-Qiong Pei
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China; Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu, 610041, China
| | - Zhi-Gang Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 211800, China
| | - Ganggang Wang
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China; Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu, 610041, China.
| | - Zhong-Liu Wu
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China; Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu, 610041, China.
| |
Collapse
|
14
|
A Novel Thermal Stable Carbonyl Reductase from Bacillus cereus by Gene Mining as Biocatalyst for β-Carbonyl Ester Asymmetric Reduction Reaction. Catal Letters 2019. [DOI: 10.1007/s10562-018-2645-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
15
|
Crystal structure and iterative saturation mutagenesis of ChKRED20 for expanded catalytic scope. Appl Microbiol Biotechnol 2017; 101:8395-8404. [DOI: 10.1007/s00253-017-8556-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 09/05/2017] [Accepted: 09/26/2017] [Indexed: 12/31/2022]
|
16
|
|
17
|
Zhao FJ, Liu Y, Pei XQ, Guo C, Wu ZL. Single mutations of ketoreductase ChKRED20 enhance the bioreductive production of (1S)-2-chloro-1-(3, 4-difluorophenyl) ethanol. Appl Microbiol Biotechnol 2016; 101:1945-1952. [PMID: 27830294 DOI: 10.1007/s00253-016-7947-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 10/07/2016] [Accepted: 10/18/2016] [Indexed: 11/28/2022]
Abstract
(1S)-2-chloro-1-(3, 4-difluorophenyl) ethanol ((S)-CFPL) is an intermediate for the drug ticagrelor, and is manufactured via chemical approaches. To develop a biocatalytic solution to (S)-CFPL, an inventory of ketoreductases from Chryseobacterium sp. CA49 were rescreened, and ChKRED20 was found to catalyze the reduction of the ketone precursor with excellent stereoselectivity (>99 % ee). After screening an error-prone PCR library of the wild-type ChKRED20, two mutants, each bearing a single amino acid substitution of H145L or L205M, were identified with significantly increased activity. Then, the two critical positions were each randomized by constructing saturation mutagenesis libraries, which delivered several mutants with further enhanced activity. Among them, the mutant L205A was the best performer with a specific activity of 178 μmol/min/mg, ten times of that of the wild-type. Its k cat/K m increased by 15 times and half-life at 50 °C increased by 70 %. The mutant catalyzed the complete conversion of 150 and 200 g/l substrate within 6 and 20 h, respectively, to yield enantiopure (S)-CFPL with an isolated yield of 95 %.
Collapse
Affiliation(s)
- Feng-Jiao Zhao
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.,Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu, 610041, China.,Graduate University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Yan Liu
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.,Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu, 610041, China.,Graduate University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao-Qiong Pei
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.,Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu, 610041, China.,Graduate University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Chao Guo
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.,Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu, 610041, China.,Graduate University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhong-Liu Wu
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China. .,Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu, 610041, China.
| |
Collapse
|
18
|
Xu GP, Wang HB, Wu ZL. Efficient bioreductive production of (S)-N-Boc-3-hydroxypiperidine using ketoreductase ChKRED03. Process Biochem 2016. [DOI: 10.1016/j.procbio.2016.04.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|