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Mao S, Chen Y, Sun J, Wei C, Song Z, Lu F, Qin HM. Enhancing the sustainability of KsdD as a biocatalyst for steroid transformation by immobilization on epoxy support. Enzyme Microb Technol 2021; 146:109777. [PMID: 33812565 DOI: 10.1016/j.enzmictec.2021.109777] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 02/21/2021] [Accepted: 02/27/2021] [Indexed: 11/18/2022]
Abstract
The Δ1-dehydrogenation of 3-ketosteroid substrates is a crucial reaction in the production of steroids. Although 3-ketosteroid Δ1-dehydrogenase (KsdD) catalyzes this reaction with high efficiency and selectivity, the low stability and high cost of the purified enzyme catalyst have limited its industrial application. In this study, an epoxy support was used to evaluate the covalent immobilization of KsdD from Pimelobacter simplex, and the best androsta-1,4-diene-317-dione (ADD) production was achieved after optimized immobilization of KsdD enzyme in 1.5 M NaH2PO4- Na2HPO4 buffer (pH 6.5) for 12 h at 25 °C. The immobilized KsdD exhibited higher tolerance toward 20 % methanol. The dehydrogenation reaction reached a conversion efficiency of up to 90.0 % in 2 h when using 0.6 mg/mL of 4-androstene-317-dione (AD). The W299A and W299 G mutants of KsdD were also immobilized, and both showed the better catalytic performance with higher kcat/KM values compared with the wild type (WT). The immobilized W299A, W299 G and WT KsdD respectively maintained 70.5, 65.7 and 38.7 % of their initial activity at the end of 15 reaction cycles. Furthermore, the W299A retained 66.3 % of the initial activity after 30 days of incubation at 4 °C, and was more stable than free KsdD, Thus, the immobilized W299A is a promising biocatalyst for steroid dehydrogenation. In this study, we investigated the application of immobilized enzymes for the dehydrogenation of steroids, which will be of great importance for improving the development of green technology and sustainable use of biocatalysts in the steroid manufacturing industry.
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Affiliation(s)
- Shuhong Mao
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, PR China
| | - Ying Chen
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, PR China
| | - Jing Sun
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, PR China
| | - Cancan Wei
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, PR China
| | - Zhan Song
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, PR China
| | - Fuping Lu
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, PR China.
| | - Hui-Min Qin
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, National Engineering Laboratory for Industrial Enzymes, Tianjin, 300457, PR China.
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Mattey AP, Sangster JJ, Ramsden JI, Baldwin C, Birmingham WR, Heath RS, Angelastro A, Turner NJ, Cosgrove SC, Flitsch SL. Natural heterogeneous catalysis with immobilised oxidase biocatalysts. RSC Adv 2020; 10:19501-19505. [PMID: 35515476 PMCID: PMC9054114 DOI: 10.1039/d0ra03618h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 05/18/2020] [Indexed: 01/04/2023] Open
Abstract
The generation of immobilised oxidase biocatalysts allowing multifunctional oxidation of valuable chemicals using molecular oxygen is described. Engineered galactose oxidase (GOase) variants M1 and M3–5, an engineered choline oxidase (AcCO6) and monoamine oxidase (MAO-N D9) displayed long-term stability and reusability over several weeks when covalently attached on a solid support, outperforming their free counterparts in terms of stability (more than 20 fold), resistance to heat at 60 °C, and tolerance to neat organic solvents such as hexane and toluene. These robust heterogenous oxidation catalysts can be recovered after each reaction and be reused multiple times for the oxidation of different substrates. The generation of immobilised oxidase biocatalysts allowing multifunctional oxidation of valuable chemicals using molecular oxygen is described.![]()
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Abstract
Arylmalonate decarboxylase (AMD) is a monomeric enzyme of only 26 kDa. A recombinant AMDase from Bordetella bronchiseptica was expressed in Escherichia coli and the enzyme was immobilized using different techniques: entrapment in polyvinyl alcohol (PVA) gel (LentiKats®), covalent binding onto magnetic microparticles (MMP, PERLOZA s.r.o., Lovosice, Czech Republic) and double-immobilization (MMP-LentiKats®) using the previous two methods. The double-immobilized AMDase was stable in 8 repeated biocatalytic reactions. This combined immobilization technique has the potential to be applied to different small proteins.
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Batista VF, Galman JL, G. A. Pinto DC, Silva AMS, Turner NJ. Monoamine Oxidase: Tunable Activity for Amine Resolution and Functionalization. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03525] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Vasco F. Batista
- Department of Chemistry & QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - James L. Galman
- School of Chemistry, Manchester Institute of Biotechnology, University of Manchester, 131 Princess Street, Manchester, M1 7DN, U.K
| | - Diana C. G. A. Pinto
- Department of Chemistry & QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Artur M. S. Silva
- Department of Chemistry & QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Nicholas J. Turner
- School of Chemistry, Manchester Institute of Biotechnology, University of Manchester, 131 Princess Street, Manchester, M1 7DN, U.K
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Affiliation(s)
- Mahesh D. Patil
- Department of Systems Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea
| | - Gideon Grogan
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, United Kingdom
| | - Andreas Bommarius
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 950 Atlantic Drive, Atlanta, Georgia 30332-2000, United States
| | - Hyungdon Yun
- Department of Systems Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea
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Krasňan V, Plž M, Marr AC, Markošová K, Rosenberg M, Rebroš M. Intensified crude glycerol conversion to butanol by immobilized Clostridium pasteurianum. Biochem Eng J 2018. [DOI: 10.1016/j.bej.2018.03.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Cloning and upscale production of monoamine oxidase N (MAO-N D5) by Pichia pastoris. Biotechnol Lett 2017; 40:127-133. [PMID: 29019030 DOI: 10.1007/s10529-017-2450-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Accepted: 09/28/2017] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To clone monoamine oxidase N, that catalyses the selective oxidative deamination or deracemisation of amines into imines, in Pichia pastoris and prove the importance of choosing the proper expression system for its recombinant production. RESULTS Monoamine oxidase, originating from Aspergillus niger and subjected to directed evolution (MAO-N D5), was cloned and expressed in Pichia pastoris CBS7435 MutS strain for the first time. Various transformants were screened at microscale level. The production of the clone expressing the most active enzyme was scaled-up to a 1.5 l fermenter and preparation of MAO-N D5 as a crude enzyme extract was optimised. The obstacles in the production of the enzyme in both expression systems, Escherichia coli and P. pastoris, are discussed and demonstrated. CONCLUSIONS There was an improvement in specific productivity, which was 83 times higher in P. pastoris, clearly proving the importance of choosing the right expression host system for the specific enzymes.
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