1
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Feng X, Hong S, Zhao H, Vuong TV, Master ER. Biocatalytic cascade to polysaccharide amination. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2024; 17:34. [PMID: 38409122 PMCID: PMC10898118 DOI: 10.1186/s13068-024-02477-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 02/15/2024] [Indexed: 02/28/2024]
Abstract
BACKGROUND Chitin, the main form of aminated polysaccharide in nature, is a biocompatible, polycationic, and antimicrobial biopolymer used extensively in industrial processes. Despite the abundance of chitin, applications thereof are hampered by difficulties in feedstock harvesting and limited structural versatility. To address these problems, we proposed a two-step cascade employing carbohydrate oxidoreductases and amine transaminases for plant polysaccharide aminations via one-pot reactions. Using a galactose oxidase from Fusarium graminearum for oxidation, this study compared the performance of CvATA (from Chromobacterium violaceum) and SpATA (from Silicibacter pomeroyi) on a range of oxidized carbohydrates with various structures and sizes. Using a rational enzyme engineering approach, four point mutations were introduced on the SpATA surface, and their effects on enzyme activity were evaluated. RESULTS Herein, a quantitative colorimetric assay was developed to enable simple and accurate time-course measurement of the yield of transamination reactions. With higher operational stability, SpATA produced higher product yields in 36 h reactions despite its lower initial activity. Successful amination of oxidized galactomannan by SpATA was confirmed using a deuterium labeling method; higher aminated carbohydrate yields achieved with SpATA compared to CvATA were verified using HPLC and XPS. By balancing the oxidase and transaminase loadings, improved operating conditions were identified where the side product formation was largely suppressed without negatively impacting the product yield. SpATA mutants with multiple alanine substitutions besides E407A showed improved product yield. The E407A mutation reduced SpATA activity substantially, supporting its predicted role in maintaining the dimeric enzyme structure. CONCLUSIONS Using oxidase-amine transaminase cascades, the study demonstrated a fully enzymatic route to polysaccharide amination. Although the activity of SpATA may be further improved via enzyme engineering, the low operational stability of characterized amine transaminases, as a result of low retention of PMP cofactors, was identified as a key factor limiting the yield of the designed cascade. To increase the process feasibility, future efforts to engineer improved SpATA variants should focus on improving the cofactor affinity, and thus the operational stability of the enzyme.
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Affiliation(s)
- Xuebin Feng
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON, M5S 3E5, Canada
| | - Siyi Hong
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON, M5S 3E5, Canada
| | - Hongbo Zhao
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Thu V Vuong
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON, M5S 3E5, Canada
| | - Emma R Master
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON, M5S 3E5, Canada.
- Department of Bioproducts and Biosystems, Aalto University, Espoo, Finland.
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2
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Rocha RA, Esquirol L, Rolland V, Hands P, Speight RE, Scott C. Non-covalent binding tags for batch and flow biocatalysis. Enzyme Microb Technol 2023; 169:110268. [PMID: 37300919 DOI: 10.1016/j.enzmictec.2023.110268] [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: 01/26/2023] [Revised: 05/31/2023] [Accepted: 06/02/2023] [Indexed: 06/12/2023]
Abstract
Enzyme immobilization offers considerable advantage for biocatalysis in batch and continuous flow reactions. However, many currently available immobilization methods require that the surface of the carrier is chemically modified to allow site specific interactions with their cognate enzymes, which requires specific processing steps and incurs associated costs. Two carriers (cellulose and silica) were investigated here, initially using fluorescent proteins as models to study binding, followed by assessment of industrially relevant enzyme performance (transaminases and an imine reductase/glucose oxidoreductase fusion). Two previously described binding tags, the 17 amino acid long silica-binding peptide from the Bacillus cereus CotB protein and the cellulose binding domain from the Clostridium thermocellum, were fused to a range of proteins without impairing their heterologous expression. When fused to a fluorescent protein both tags conferred high avidity specific binding with their respective carriers (low nanomolar Kd values). The CotB peptide (CotB1p) induced protein aggregation in the transaminase and imine reductase/glucose oxidoreductase fusions when incubated with the silica carrier. The Clostridium thermocellum cellulose binding domain (CBDclos) allowed immobilization of all the proteins tested, but immobilization led to loss of enzymatic activity in the transaminases (< 2-fold) and imine reductase/glucose oxidoreductase fusion (> 80%). A transaminase-CBDclos fusion was then successfully used to demonstrate the application of the binding tag in repetitive batch and a continuous-flow reactor.
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Affiliation(s)
- Raquel A Rocha
- School of Biology and Environmental Science, Faculty of Science, Queensland University of Technology (QUT), Brisbane, Qld 4000, Australia; CSIRO Environment, Black Mountain Science and Innovation Park, Canberra, ACT 2601, Australia
| | - Lygie Esquirol
- CSIRO Environment, Black Mountain Science and Innovation Park, Canberra, ACT 2601, Australia
| | - Vivien Rolland
- CSIRO Agriculture and Food, Black Mountain Science and Innovation Park, Canberra, ACT 2601, Australia
| | - Philip Hands
- CSIRO Agriculture and Food, Black Mountain Science and Innovation Park, Canberra, ACT 2601, Australia
| | - Robert E Speight
- School of Biology and Environmental Science, Faculty of Science, Queensland University of Technology (QUT), Brisbane, Qld 4000, Australia; ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology (QUT), Brisbane, Qld 4000, Australia
| | - Colin Scott
- CSIRO Environment, Black Mountain Science and Innovation Park, Canberra, ACT 2601, Australia.
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3
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Comparison of Four Immobilization Methods for Different Transaminases. Catalysts 2023. [DOI: 10.3390/catal13020300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Biocatalytic syntheses often require unfavorable conditions, which can adversely affect enzyme stability. Consequently, improving the stability of biocatalysts is needed, and this is often achieved by immobilization. In this study, we aimed to compare the stability of soluble and immobilized transaminases from different species. A cysteine in a consensus sequence was converted to a single aldehyde by the formylglycine-generating enzyme for directed single-point attachment to amine beads. This immobilization was compared to cross-linked enzyme aggregates (CLEAs) and multipoint attachments to glutaraldehyde-functionalized amine- and epoxy-beads. Subsequently, the reactivity and stability (i.e., thermal, storage, and solvent stability) of all soluble and immobilized transaminases were analyzed and compared under different conditions. The effect of immobilization was highly dependent on the type of enzyme, the immobilization strategy, and the application itself, with no superior immobilization technique identified. Immobilization of HAGA-beads often resulted in the highest activities of up to 62 U/g beads, and amine beads were best for the hexameric transaminase from Luminiphilus syltensis. Furthermore, the immobilization of transaminases enabled its reusability for at least 10 cycles, while maintaining full or high activity. Upscaled kinetic resolutions (partially performed in a SpinChemTM reactor) resulted in a high conversion, maintained enantioselectivity, and high product yields, demonstrating their applicability.
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4
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Li F, Du Y, Liang Y, Wei Y, Zheng Y, Yu H. Redesigning an ( R)-Selective Transaminase for the Efficient Synthesis of Pharmaceutical N-Heterocyclic Amines. ACS Catal 2022. [DOI: 10.1021/acscatal.2c05177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Fulong Li
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, People’s Republic of China
- Key Laboratory of Industrial Biocatalysis (Tsinghua University), The Ministry of Education, Beijing 100084, People’s Republic of China
| | - Yan Du
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, People’s Republic of China
- Key Laboratory of Industrial Biocatalysis (Tsinghua University), The Ministry of Education, Beijing 100084, People’s Republic of China
| | - Youxiang Liang
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, People’s Republic of China
- Key Laboratory of Industrial Biocatalysis (Tsinghua University), The Ministry of Education, Beijing 100084, People’s Republic of China
| | - Yuwen Wei
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, People’s Republic of China
- Key Laboratory of Industrial Biocatalysis (Tsinghua University), The Ministry of Education, Beijing 100084, People’s Republic of China
| | - Yukun Zheng
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, People’s Republic of China
- Key Laboratory of Industrial Biocatalysis (Tsinghua University), The Ministry of Education, Beijing 100084, People’s Republic of China
| | - Huimin Yu
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, People’s Republic of China
- Key Laboratory of Industrial Biocatalysis (Tsinghua University), The Ministry of Education, Beijing 100084, People’s Republic of China
- Center for Synthetic and Systems Biology, Tsinghua University, Beijing 100084, People’s Republic of China
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5
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Ramírez-Palacios C, Wijma HJ, Thallmair S, Marrink SJ, Janssen DB. Computational Prediction of ω-Transaminase Specificity by a Combination of Docking and Molecular Dynamics Simulations. J Chem Inf Model 2021; 61:5569-5580. [PMID: 34653331 PMCID: PMC8611723 DOI: 10.1021/acs.jcim.1c00617] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
ω-Transaminases (ω-TAs) catalyze the conversion of ketones to chiral amines, often with high enantioselectivity and specificity, which makes them attractive for industrial production of chiral amines. Tailoring ω-TAs to accept non-natural substrates is necessary because of their limited substrate range. We present a computational protocol for predicting the enantioselectivity and catalytic selectivity of an ω-TA from Vibrio fluvialis with different substrates and benchmark it against 62 compounds gathered from the literature. Rosetta-generated complexes containing an external aldimine intermediate of the transamination reaction are used as starting conformations for multiple short independent molecular dynamics (MD) simulations. The combination of molecular docking and MD simulations ensures sufficient and accurate sampling of the relevant conformational space. Based on the frequency of near-attack conformations observed during the MD trajectories, enantioselectivities can be quantitatively predicted. The predicted enantioselectivities are in agreement with a benchmark dataset of experimentally determined ee% values. The substrate-range predictions can be based on the docking score of the external aldimine intermediate. The low computational cost required to run the presented framework makes it feasible for use in enzyme design to screen thousands of enzyme variants.
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Affiliation(s)
- Carlos Ramírez-Palacios
- Biotransformation and Biocatalysis, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.,Molecular Dynamics, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Hein J Wijma
- Biotransformation and Biocatalysis, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Sebastian Thallmair
- Molecular Dynamics, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands.,Frankfurt Institute for Advanced Studies, Ruth-Moufang-Str. 1, 60438 Frankfurt am Main, Germany
| | - Siewert J Marrink
- Molecular Dynamics, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Dick B Janssen
- Biotransformation and Biocatalysis, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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6
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Meng Q, Ramírez-Palacios C, Capra N, Hooghwinkel ME, Thallmair S, Rozeboom HJ, Thunnissen AMWH, Wijma HJ, Marrink SJ, Janssen DB. Computational Redesign of an ω-Transaminase from Pseudomonas jessenii for Asymmetric Synthesis of Enantiopure Bulky Amines. ACS Catal 2021; 11:10733-10747. [PMID: 34504735 PMCID: PMC8419838 DOI: 10.1021/acscatal.1c02053] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/26/2021] [Indexed: 01/19/2023]
Abstract
![]()
ω-Transaminases
(ω-TA) are attractive biocatalysts
for the production of chiral amines from prochiral ketones via asymmetric synthesis. However, the substrate scope of
ω-TAs is usually limited due to steric hindrance at the active
site pockets. We explored a protein engineering strategy using computational
design to expand the substrate scope of an (S)-selective
ω-TA from Pseudomonas jessenii (PjTA-R6) toward the production of bulky amines. PjTA-R6 is attractive for use in applied biocatalysis due
to its thermostability, tolerance to organic solvents, and acceptance
of high concentrations of isopropylamine as amino donor. PjTA-R6 showed no detectable activity for the synthesis of six bicyclic
or bulky amines targeted in this study. Six small libraries composed
of 7–18 variants each were separately designed via computational methods and tested in the laboratory for ketone to
amine conversion. In each library, the vast majority of the variants
displayed the desired activity, and of the 40 different designs, 38
produced the target amine in good yield with >99% enantiomeric
excess.
This shows that the substrate scope and enantioselectivity of PjTA mutants could be predicted in silico with high accuracy. The single mutant W58G showed the best performance
in the synthesis of five structurally similar bulky amines containing
the indan and tetralin moieties. The best variant for the other bulky
amine, 1-phenylbutylamine, was the triple mutant W58M + F86L + R417L,
indicating that Trp58 is a key residue in the large binding pocket
for PjTA-R6 redesign. Crystal structures of the two
best variants confirmed the computationally predicted structures.
The results show that computational design can be an efficient approach
to rapidly expand the substrate scope of ω-TAs to produce enantiopure
bulky amines.
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Affiliation(s)
- Qinglong Meng
- Biotransformation and Biocatalysis, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 4, AG Groningen 9747, Groningen, The Netherlands
| | - Carlos Ramírez-Palacios
- Biotransformation and Biocatalysis, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 4, AG Groningen 9747, Groningen, The Netherlands
- Molecular Dynamics, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, AG Groningen 9747, Groningen, The Netherlands
| | - Nikolas Capra
- Biotransformation and Biocatalysis, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 4, AG Groningen 9747, Groningen, The Netherlands
| | - Mattijs E. Hooghwinkel
- Biotransformation and Biocatalysis, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 4, AG Groningen 9747, Groningen, The Netherlands
| | - Sebastian Thallmair
- Molecular Dynamics, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, AG Groningen 9747, Groningen, The Netherlands
- Frankfurt Institute for Advanced Studies, Ruth-Moufang-Str. 1, Frankfurt am Main 60438, Germany
| | - Henriëtte J. Rozeboom
- Biotransformation and Biocatalysis, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 4, AG Groningen 9747, Groningen, The Netherlands
| | - Andy-Mark W. H. Thunnissen
- Biotransformation and Biocatalysis, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 4, AG Groningen 9747, Groningen, The Netherlands
| | - Hein J. Wijma
- Biotransformation and Biocatalysis, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 4, AG Groningen 9747, Groningen, The Netherlands
| | - Siewert J. Marrink
- Molecular Dynamics, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, AG Groningen 9747, Groningen, The Netherlands
| | - Dick B. Janssen
- Biotransformation and Biocatalysis, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 4, AG Groningen 9747, Groningen, The Netherlands
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7
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Jia DX, Peng C, Li JL, Wang F, Liu ZQ, Zheng YG. Redesign of (R)-Omega-Transaminase and Its Application for Synthesizing Amino Acids with Bulky Side Chain. Appl Biochem Biotechnol 2021; 193:3624-3640. [PMID: 34347249 DOI: 10.1007/s12010-021-03616-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 07/12/2021] [Indexed: 11/29/2022]
Abstract
ω-Transaminase (ω-TA) is an attractive biocatalyst for stereospecific preparation of amino acids and derivatives, but low catalytic efficiency and unfavorable substrate specificity hamper their industrial application. In this work, to obtain applicable (R)-ω-TA responsible for amination of α-keto acids substrates, the reactivities of eight previously synthesized ω-TAs toward pyruvate using (R)-α-methylbenzylamine ((R)-α-MBA) as amine donor were investigated, and Gibberella zeae TA (GzTA) with the highest (R)-TA activity and stereoselectivity was selected as starting scaffold for engineering. Site-directed mutagenesis around enzymatic active pocket and access tunnel identified three positive mutation sites, S214A, F113L, and V60A. Kinetic analysis synchronously with molecular docking revealed that these mutations afforded desirable alleviation of steric hindrance for pyruvate and α-MBA. Furthermore, the constructed single-, double-, and triple-mutant exhibited varying degrees of improved specificities toward bulkier α-keto acids. Using 2-oxo-2-phenylacetic acid (1d) as substrate, the conversion rate of triple-mutant F113L/V60A/S214A increased by 3.8-fold relative to that of wide-type GzTA. This study provided a practical engineering strategy for improving catalytic efficiency and substrate specificity of (R)-ω-TA. The obtained experience shed light on creating more industrial ω-TAs mutants that can accommodate structurally diverse substrates.
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Affiliation(s)
- Dong-Xu Jia
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, People's Republic of China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, People's Republic of China
| | - Chen Peng
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, People's Republic of China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, People's Republic of China
| | - Jun-Liang Li
- Hangzhou Zhongmei Huadong Pharmaceutical Co., Ltd., 866 Moganshan Road, Hangzhou, 310005, People's Republic of China
| | - Fan Wang
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, People's Republic of China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, People's Republic of China
| | - Zhi-Qiang Liu
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, People's Republic of China. .,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, People's Republic of China.
| | - Yu-Guo Zheng
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, People's Republic of China.,Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, People's Republic of China
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8
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Xiang C, Wu S, Bornscheuer UT. Directed evolution of an amine transaminase for the synthesis of an Apremilast intermediate via kinetic resolution. Bioorg Med Chem 2021; 43:116271. [PMID: 34171757 DOI: 10.1016/j.bmc.2021.116271] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/30/2021] [Accepted: 06/04/2021] [Indexed: 01/01/2023]
Abstract
Apremilast is an important active pharmaceutical ingredient that relies on a resolution to produce the key chiral amine intermediate. To provide a new catalytic and enzymatic process for Apremilast, we performed the directed evolution of the amine transaminase fromVibriofluvialis. Six rounds of evolution resulted in the VF-8M-E variant with > 400-fold increase specific activity over the wildtype enzyme. A homology model of VF-8M-E was built and a molecular docking study was performed to explain the increase in activity. The purified VF-8M-E was successfully applied to produce the key chiral amine intermediate in enantiopure form and 49% conversion via a kinetic resolution, representing a new enzymatic access towards Apremilast.
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Affiliation(s)
- Chao Xiang
- Department of Biotechnology and Enzyme Catalysis, Institute of Biochemistry, University of Greifswald, Felix Hausdorff-Str. 4, 17487 Greifswald, Germany
| | - Shuke Wu
- Department of Biotechnology and Enzyme Catalysis, Institute of Biochemistry, University of Greifswald, Felix Hausdorff-Str. 4, 17487 Greifswald, Germany; State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan 430070, PR China
| | - Uwe T Bornscheuer
- Department of Biotechnology and Enzyme Catalysis, Institute of Biochemistry, University of Greifswald, Felix Hausdorff-Str. 4, 17487 Greifswald, Germany.
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9
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Xie Y, Xu F, Yang L, Liu H, Xu X, Wang H, Wei D. Engineering the large pocket of an ( S)-selective transaminase for asymmetric synthesis of ( S)-1-amino-1-phenylpropane. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02426k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Amine transaminases offer an environmentally benign chiral amine asymmetric synthesis route.
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Affiliation(s)
- Youyu Xie
- State Key Laboratory of Bioreactor Engineering
- New World Institute of Biotechnology
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Feng Xu
- State Key Laboratory of Bioreactor Engineering
- New World Institute of Biotechnology
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Lin Yang
- State Key Laboratory of Bioreactor Engineering
- New World Institute of Biotechnology
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - He Liu
- State Key Laboratory of Bioreactor Engineering
- New World Institute of Biotechnology
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | | | - Hualei Wang
- State Key Laboratory of Bioreactor Engineering
- New World Institute of Biotechnology
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Dongzhi Wei
- State Key Laboratory of Bioreactor Engineering
- New World Institute of Biotechnology
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
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10
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Bezsudnova EY, Stekhanova TN, Ruzhitskiy AO, Popov VO. Effects of pH and temperature on (S)-amine activity of transaminase from the cold-adapted bacterium Psychrobacter cryohalolentis. Extremophiles 2020; 24:537-549. [PMID: 32418069 DOI: 10.1007/s00792-020-01174-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 04/27/2020] [Indexed: 10/24/2022]
Abstract
(7R,8S)-diaminopelargonic acid transaminase from the cold-adapted Gram-negative bacterium Psychrobacter cryohalolentis (Pcryo361) is able to react with unnatural substrates including (S)-( +)-1-phenylethylamine, aldehydes and α-diketones. Additionally, Pcryo361 is active at 0-50 °C and retains up to 10% of the maximum activity at 0 °C. Here, we report a detailed study on the stability and low temperature activity of Pcryo361. At the optimal pH for (S)-amine activity (pH 10.0), the enzyme was stable at 0-10 °C and no decrease in the enzyme activity was observed within 24 h in a slightly alkaline medium, pH 8.0, at 35 °C. Pcryo361 was solvent stable and was activated in 10% DMSO and DMFA at 35 °C. An analysis of the efficiency of catalysis of Pcryo361 at 35 °C and 10 °C showed that the specificity towards (S)-( +)-1-phenylethylamine dropped at 10 °C; however, the specificity towards 2,3-butanedione remained unchanged. Inhibition analysis showed that Pcryo361 activity was not inhibited by acetophenone but inhibited by amines (products of aldehyde amination). The observed pH stability and low temperature activity of Pcryo361 with activated keto substrates are attractive features in the field of development of stereoselective amination at low temperatures.
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Affiliation(s)
- Ekaterina Yu Bezsudnova
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Ave. 33, bld. 2, Moscow, 119071, Russian Federation.
| | - Tatiana N Stekhanova
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Ave. 33, bld. 2, Moscow, 119071, Russian Federation
| | - Aleksandr O Ruzhitskiy
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Ave. 33, bld. 2, Moscow, 119071, Russian Federation
| | - Vladimir O Popov
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Ave. 33, bld. 2, Moscow, 119071, Russian Federation.,Kurchatov Complex of NBICS-Technologies, National Research Centre "Kurchatov Institute", Akad. Kurchatova sqr 1, Moscow, 123182, Russian Federation
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11
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Song JW, Seo JH, Oh DK, Bornscheuer UT, Park JB. Design and engineering of whole-cell biocatalytic cascades for the valorization of fatty acids. Catal Sci Technol 2020. [DOI: 10.1039/c9cy01802f] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This review presents the key factors to construct a productive whole-cell biocatalytic cascade exemplified for the biotransformation of renewable fatty acids.
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Affiliation(s)
- Ji-Won Song
- Department of Food Science and Engineering
- Ewha Womans University
- Seoul 03760
- Republic of Korea
| | - Joo-Hyun Seo
- Department of Bio and Fermentation Convergence Technology
- Kookmin University
- Seoul 02707
- Republic of Korea
| | - Doek-Kun Oh
- Department of Bioscience and Biotechnology
- Konkuk University
- Seoul 143-701
- Republic of Korea
| | - Uwe T. Bornscheuer
- Institute of Biochemistry
- Department of Biotechnology & Enzyme Catalysis
- Greifswald University
- 17487 Greifswald
- Germany
| | - Jin-Byung Park
- Department of Food Science and Engineering
- Ewha Womans University
- Seoul 03760
- Republic of Korea
- Institute of Molecular Microbiology and Biosystems Engineering
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12
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Screening and Comparative Characterization of Microorganisms from Iranian Soil Samples Showing ω-Transaminase Activity toward a Plethora of Substrates. Catalysts 2019. [DOI: 10.3390/catal9100874] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
In this study, soil microorganisms from Iran were screened for ω-transaminase (ω-TA) activity based on growth on minimal media containing (rac)-α-methylbenzylamine (rac-α-MBA) as a sole nitrogen source. Then, for the selection of strains with high enzyme activity, a colorimetric o-xylylendiamine assay was conducted. The most promising strains were identified by 16S rDNA sequencing. Five microorganisms showing high ω-TA activity were subjected to determine optimal conditions for ω-TA activity, including pH, temperature, co-solvent, and the specificity of the ω-TA toward different amine donors and acceptors. Among the five screened microorganisms, Bacillus halotolerans turned out to be the most promising strain: Its cell-free extract showed a highly versatile amino donor spectrum toward aliphatic, aromatic chiral amines and a broad range of pH activity. Transaminase activity also exhibited excellent solvent tolerance, with maximum turnover in the presence of 30% (v/v) DMSO.
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13
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Aumala V, Mollerup F, Jurak E, Blume F, Karppi J, Koistinen AE, Schuiten E, Voß M, Bornscheuer U, Deska J, Master ER. Biocatalytic Production of Amino Carbohydrates through Oxidoreductase and Transaminase Cascades. CHEMSUSCHEM 2019; 12:848-857. [PMID: 30589228 PMCID: PMC6519198 DOI: 10.1002/cssc.201802580] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/23/2018] [Indexed: 06/09/2023]
Abstract
Plant-derived carbohydrates are an abundant renewable resource. Transformation of carbohydrates into new products, including amine-functionalized building blocks for biomaterials applications, can lower reliance on fossil resources. Herein, biocatalytic production routes to amino carbohydrates, including oligosaccharides, are demonstrated. In each case, two-step biocatalysis was performed to functionalize d-galactose-containing carbohydrates by employing the galactose oxidase from Fusarium graminearum or a pyranose dehydrogenase from Agaricus bisporus followed by the ω-transaminase from Chromobacterium violaceum (Cvi-ω-TA). Formation of 6-amino-6-deoxy-d-galactose, 2-amino-2-deoxy-d-galactose, and 2-amino-2-deoxy-6-aldo-d-galactose was confirmed by mass spectrometry. The activity of Cvi-ω-TA was highest towards 6-aldo-d-galactose, for which the highest yield of 6-amino-6-deoxy-d-galactose (67 %) was achieved in reactions permitting simultaneous oxidation of d-galactose and transamination of the resulting 6-aldo-d-galactose.
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Affiliation(s)
- Ville Aumala
- Department of Bioproducts and BiosystemsAalto UniversityKemistintie 102150EspooFinland
| | - Filip Mollerup
- Department of Bioproducts and BiosystemsAalto UniversityKemistintie 102150EspooFinland
| | - Edita Jurak
- Department of Aquatic Biotechnology and Bioproduct EngineeringUniversity of GroningenNijenborgh 49747AGGroningenThe Netherlands
| | - Fabian Blume
- Department of Chemistry and Materials ScienceAalto UniversityKemistintie 102150EspooFinland
| | - Johanna Karppi
- Department of Bioproducts and BiosystemsAalto UniversityKemistintie 102150EspooFinland
| | - Antti E. Koistinen
- Department of Bioproducts and BiosystemsAalto UniversityKemistintie 102150EspooFinland
| | - Eva Schuiten
- Department of Biotechnology and Enzyme CatalysisGreifswald UniversityFelix-Hausdorff-Straße 417487GreifswaldGermany
| | - Moritz Voß
- Department of Biotechnology and Enzyme CatalysisGreifswald UniversityFelix-Hausdorff-Straße 417487GreifswaldGermany
| | - Uwe Bornscheuer
- Department of Biotechnology and Enzyme CatalysisGreifswald UniversityFelix-Hausdorff-Straße 417487GreifswaldGermany
| | - Jan Deska
- Department of Chemistry and Materials ScienceAalto UniversityKemistintie 102150EspooFinland
| | - Emma R. Master
- Department of Bioproducts and BiosystemsAalto UniversityKemistintie 102150EspooFinland
- Department of Chemical Engineering and Applied ChemistryUniversity of Toronto200 College StreetTorontoOntarioM5S 3E5Canada
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14
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Voss M, Das D, Genz M, Kumar A, Kulkarni N, Kustosz J, Kumar P, Bornscheuer UT, Höhne M. In Silico Based Engineering Approach to Improve Transaminases for the Conversion of Bulky Substrates. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03900] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Moritz Voss
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry, Greifswald University, Felix-Hausdorff-Str. 4, 17487 Greifswald, Germany
| | - Devashish Das
- Quantumzyme, LLP, No. 110/8, Krishnappa Layout, Lalbagh Road, Bangalore 560027, India
| | - Maika Genz
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry, Greifswald University, Felix-Hausdorff-Str. 4, 17487 Greifswald, Germany
| | - Anurag Kumar
- Quantumzyme, LLP, No. 110/8, Krishnappa Layout, Lalbagh Road, Bangalore 560027, India
| | - Naveen Kulkarni
- Quantumzyme, LLP, No. 110/8, Krishnappa Layout, Lalbagh Road, Bangalore 560027, India
| | - Jakub Kustosz
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry, Greifswald University, Felix-Hausdorff-Str. 4, 17487 Greifswald, Germany
| | - Pravin Kumar
- Quantumzyme, LLP, No. 110/8, Krishnappa Layout, Lalbagh Road, Bangalore 560027, India
| | - Uwe T. Bornscheuer
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry, Greifswald University, Felix-Hausdorff-Str. 4, 17487 Greifswald, Germany
| | - Matthias Höhne
- Protein Biochemistry, Institute of Biochemistry, Greifswald University, Felix-Hausdorff-Str. 4, 17487 Greifswald, Germany
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15
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Shin YC, Yun H, Park HH. Structural dynamics of the transaminase active site revealed by the crystal structure of a co-factor free omega-transaminase from Vibrio fluvialis JS17. Sci Rep 2018; 8:11454. [PMID: 30061559 PMCID: PMC6065307 DOI: 10.1038/s41598-018-29846-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 07/19/2018] [Indexed: 02/01/2023] Open
Abstract
Omega (ω)-transaminase catalyzes the transfer of an amino group from a non-α position amino acid, or an amine compound with no carboxylic group, to an amino acceptor, and has been studied intensively because of its high potential utility in industry and pharmatheutics. The ω-transaminase from Vibrio fluvialis JS17 (Vfat) is an amine:pyruvate transaminase capable of the stereo-selective transamination of arylic chiral amines. This enzyme exhibits extraordinary enantio-selectivity, and has a rapid reaction rate for chiral amine substrates. In this study, we report the crystal structure of the apo form of Vfat. The overall structure of Vfat was typical of other class III aminotransferase exhibiting an N-terminal helical domain, a small domain, and a large domain. Interestingly, the two subunits of apo Vfat in the asymmetric unit had different structures. A comparison of the overall structure to other transaminases, revealed that the structures of the N-terminal helical domain and the large domain can be affected by cofactor occupancy, but the structural rearrangement in these regions can occur independently.
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Affiliation(s)
- Young-Cheul Shin
- Department of Cell Biology, Harvard Medical School, Boston, Massachusetts, 02115, USA
| | - Hyungdon Yun
- Department of Bioscience & Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Hyun Ho Park
- College of Pharmacy, Chung-Ang University, Seoul, 06974, Republic of Korea.
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16
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Dawood AWH, Weiß MS, Schulz C, Pavlidis IV, Iding H, de Souza ROMA, Bornscheuer UT. Isopropylamine as Amine Donor in Transaminase-Catalyzed Reactions: Better Acceptance through Reaction and Enzyme Engineering. ChemCatChem 2018. [DOI: 10.1002/cctc.201800936 and 21=21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ayad W. H. Dawood
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17487 Germany
| | - Martin S. Weiß
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17487 Germany
| | - Christian Schulz
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17487 Germany
| | - Ioannis V. Pavlidis
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17487 Germany
- Department of Chemistry; University of Crete; Voutes University Campus Heraklion 70013 Greece
| | - Hans Iding
- Process Chemistry and Catalysis, Biocatalysis; F. Hoffmann-La Roche Ltd.; Grenzacher Strasse 124 Basel 4070 Switzerland
| | - Rodrigo O. M. A. de Souza
- Biocatalysis and Organic Synthesis Group, Institute of Chemistry; Federal University of Rio de Janeiro; Brazil
| | - Uwe T. Bornscheuer
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17487 Germany
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17
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Dawood AWH, Weiß MS, Schulz C, Pavlidis IV, Iding H, de Souza ROMA, Bornscheuer UT. Isopropylamine as Amine Donor in Transaminase-Catalyzed Reactions: Better Acceptance through Reaction and Enzyme Engineering. ChemCatChem 2018. [DOI: 10.1002/cctc.201800936 and 67=89] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ayad W. H. Dawood
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17487 Germany
| | - Martin S. Weiß
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17487 Germany
| | - Christian Schulz
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17487 Germany
| | - Ioannis V. Pavlidis
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17487 Germany
- Department of Chemistry; University of Crete; Voutes University Campus Heraklion 70013 Greece
| | - Hans Iding
- Process Chemistry and Catalysis, Biocatalysis; F. Hoffmann-La Roche Ltd.; Grenzacher Strasse 124 Basel 4070 Switzerland
| | - Rodrigo O. M. A. de Souza
- Biocatalysis and Organic Synthesis Group, Institute of Chemistry; Federal University of Rio de Janeiro; Brazil
| | - Uwe T. Bornscheuer
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17487 Germany
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18
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Dawood AWH, Weiß MS, Schulz C, Pavlidis IV, Iding H, de Souza ROMA, Bornscheuer UT. Isopropylamine as Amine Donor in Transaminase-Catalyzed Reactions: Better Acceptance through Reaction and Enzyme Engineering. ChemCatChem 2018. [DOI: 10.1002/cctc.201800936] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ayad W. H. Dawood
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17487 Germany
| | - Martin S. Weiß
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17487 Germany
| | - Christian Schulz
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17487 Germany
| | - Ioannis V. Pavlidis
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17487 Germany
- Department of Chemistry; University of Crete; Voutes University Campus Heraklion 70013 Greece
| | - Hans Iding
- Process Chemistry and Catalysis, Biocatalysis; F. Hoffmann-La Roche Ltd.; Grenzacher Strasse 124 Basel 4070 Switzerland
| | - Rodrigo O. M. A. de Souza
- Biocatalysis and Organic Synthesis Group, Institute of Chemistry; Federal University of Rio de Janeiro; Brazil
| | - Uwe T. Bornscheuer
- Department of Biotechnology & Enzyme Catalysis, Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17487 Germany
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19
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Buß O, Muller D, Jager S, Rudat J, Rabe KS. Improvement in the Thermostability of a β-Amino Acid Converting ω-Transaminase by Using FoldX. Chembiochem 2017; 19:379-387. [PMID: 29120530 DOI: 10.1002/cbic.201700467] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Indexed: 12/19/2022]
Abstract
ω-Transaminases (ω-TAs) are important biocatalysts for the synthesis of active, chiral pharmaceutical ingredients containing amino groups, such as β-amino acids, which are important in peptidomimetics and as building blocks for drugs. However, the application of ω-TAs is limited by the availability and stability of enzymes with high conversion rates. One strategy for the synthesis and optical resolution of β-phenylalanine and other important aromatic β-amino acids is biotransformation by utilizing an ω-transaminase from Variovorax paradoxus. We designed variants of this ω-TA to gain higher process stability on the basis of predictions calculated by using the FoldX software. We herein report the first thermostabilization of a nonthermostable S-selective ω-TA by FoldX-guided site-directed mutagenesis. The melting point (Tm ) of our best-performing mutant was increased to 59.3 °C, an increase of 4.0 °C relative to the Tm value of the wild-type enzyme, whereas the mutant fully retained its specific activity.
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Affiliation(s)
- Oliver Buß
- Institute of Process Engineering in Life Sciences, Section II: Technical Biology, Karlsruhe Institute of Technology (KIT), Engler-Bunte-Ring 3, 76131, Karlsruhe, Germany
| | - Delphine Muller
- Institute of Process Engineering in Life Sciences, Section II: Technical Biology, Karlsruhe Institute of Technology (KIT), Engler-Bunte-Ring 3, 76131, Karlsruhe, Germany
| | - Sven Jager
- Computational Biology, Technische Universität Darmstadt, Schnittspahnstrasse 2, 64287, Darmstadt, Germany
| | - Jens Rudat
- Institute of Process Engineering in Life Sciences, Section II: Technical Biology, Karlsruhe Institute of Technology (KIT), Engler-Bunte-Ring 3, 76131, Karlsruhe, Germany
| | - Kersten S Rabe
- Institute for Biological Interfaces I, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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20
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Ferrandi EE, Monti D. Amine transaminases in chiral amines synthesis: recent advances and challenges. World J Microbiol Biotechnol 2017; 34:13. [PMID: 29255954 DOI: 10.1007/s11274-017-2395-2] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 12/07/2017] [Indexed: 01/10/2023]
Abstract
Transaminases, which catalyze the stereoselective transfer of an amino group between an amino donor and a prochiral ketone substrate, are interesting biocatalytic tools for the generation of optically pure chiral amines. In particular, amine transaminases (ATAs) are of industrial interest because they are capable of performing reductive amination reactions using a broad range of amine donors and acceptors. The most remarkable example of ATAs industrial application is in the production process of the anti-hyperglycaemic drug sitagliptin (Januvia®/Janumet®), which generated around 6 billion U.S. dollars of revenue to Merck in 2016. In this review, an update about the availability of microbial ATAs, discovered by both screening and database-mining approaches, or obtained by protein engineering of wild-type enzymes, will be provided. Current challenges in ATAs application and possible solutions will be also discussed. In particular, innovative biocatalytic process strategies aimed at the improvement of ATAs performances in chiral amines synthesis, e.g., using in situ product removal process strategies or flow reactors, will be presented. The progress in the industrial exploitation of these enzymes will be highlighted by selected examples of large-scale ATA-catalyzed processes.
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Affiliation(s)
- Erica E Ferrandi
- Istituto di Chimica del Riconoscimento Molecolare, C.N.R., Via Mario Bianco 9, 20131, Milan, Italy
| | - Daniela Monti
- Istituto di Chimica del Riconoscimento Molecolare, C.N.R., Via Mario Bianco 9, 20131, Milan, Italy.
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21
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Kelly SA, Megaw J, Caswell J, Scott CJ, Allen CCR, Moody TS, Gilmore BF. Isolation and Characterisation of a Halotolerant ω-Transaminase from a Triassic Period Salt Mine and Its Application to Biocatalysis. ChemistrySelect 2017. [DOI: 10.1002/slct.201701642] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Stephen A. Kelly
- School of Pharmacy; Queen's University Belfast; Belfast BT9 7BL, N. Ireland UK
| | - Julianne Megaw
- School of Pharmacy; Queen's University Belfast; Belfast BT9 7BL, N. Ireland UK
| | - Jill Caswell
- Department of Biocatalysis & Isotope Chemistry; Almac; Craigavon BT63 5QD, N. Ireland UK
| | - Christopher J. Scott
- School of Medicine, Dentistry and Biomedical Sciences; Queen's University Belfast; Belfast BT9 7BL, N. Ireland UK
| | | | - Thomas S. Moody
- Department of Biocatalysis & Isotope Chemistry; Almac; Craigavon BT63 5QD, N. Ireland UK
- Arran Chemical Company Limited, Unit 1 Monksland Industrial Estate; Athlone, Co. Roscommon Ireland
| | - Brendan F. Gilmore
- School of Pharmacy; Queen's University Belfast; Belfast BT9 7BL, N. Ireland UK
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22
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Costa IC, de Souza ROM, Bornscheuer UT. Asymmetric synthesis of serinol-monoesters catalyzed by amine transaminases. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.tetasy.2017.08.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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23
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Schwarte A, Genz M, Skalden L, Nobili A, Vickers C, Melse O, Kuipers R, Joosten HJ, Stourac J, Bendl J, Black J, Haase P, Baakman C, Damborsky J, Bornscheuer U, Vriend G, Venselaar H. NewProt – a protein engineering portal. Protein Eng Des Sel 2017; 30:441-447. [DOI: 10.1093/protein/gzx024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 04/13/2017] [Indexed: 11/13/2022] Open
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24
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Ferrandi EE, Previdi A, Bassanini I, Riva S, Peng X, Monti D. Novel thermostable amine transferases from hot spring metagenomes. Appl Microbiol Biotechnol 2017; 101:4963-4979. [PMID: 28357542 DOI: 10.1007/s00253-017-8228-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 02/21/2017] [Accepted: 03/05/2017] [Indexed: 01/09/2023]
Abstract
Hot spring metagenomes, prepared from samples collected at temperatures ranging from 55 to 95 °C, were submitted to an in silico screening aimed at the identification of novel amine transaminases (ATAs), valuable biocatalysts for the preparation of optically pure amines. Three novel (S)-selective ATAs, namely Is3-TA, It6-TA, and B3-TA, were discovered in the metagenome of samples collected from hot springs in Iceland and in Italy, cloned from the corresponding metagenomic DNAs and overexpressed in recombinant form in E. coli. Functional characterization of the novel ATAs demonstrated that they all possess a thermophilic character and are capable of performing amine transfer reactions using a broad range of donor and acceptor substrates, thus suggesting a good potential for practical synthetic applications. In particular, the enzyme B3-TA revealed to be exceptionally thermostable, retaining 85% of activity after 5 days of incubation at 80 °C and more than 40% after 2 weeks under the same condition. These results, which were in agreement with the estimation of an apparent melting temperature around 88 °C, make B3-TA, to the best of our knowledge, the most thermostable natural ATA described to date. This biocatalyst showed also a good tolerance toward different water-miscible and water-immiscible organic solvents. A detailed inspection of the homology-based structural model of B3-TA showed that the overall active site architecture of mesophilic (S)-selective ATAs was mainly conserved in this hyperthermophilic homolog. Additionally, a subfamily of B3-TA-like transaminases, mostly uncharacterized and all from thermophilic microorganisms, was identified and analyzed in terms of phylogenetic relationships and sequence conservation.
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Affiliation(s)
- Erica Elisa Ferrandi
- Istituto di Chimica del Riconoscimento Molecolare, C.N.R, Via Mario Bianco 9, 20131, Milan, Italy. .,University of Copenhagen, Ole Maaløesvej 5, 2200, Copenhagen N, Denmark.
| | - Alessandra Previdi
- Istituto di Chimica del Riconoscimento Molecolare, C.N.R, Via Mario Bianco 9, 20131, Milan, Italy
| | - Ivan Bassanini
- Istituto di Chimica del Riconoscimento Molecolare, C.N.R, Via Mario Bianco 9, 20131, Milan, Italy.,Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133, Milan, Italy
| | - Sergio Riva
- Istituto di Chimica del Riconoscimento Molecolare, C.N.R, Via Mario Bianco 9, 20131, Milan, Italy
| | - Xu Peng
- University of Copenhagen, Ole Maaløesvej 5, 2200, Copenhagen N, Denmark
| | - Daniela Monti
- Istituto di Chimica del Riconoscimento Molecolare, C.N.R, Via Mario Bianco 9, 20131, Milan, Italy.
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25
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Dourado DFAR, Pohle S, Carvalho ATP, Dheeman DS, Caswell JM, Skvortsov T, Miskelly I, Brown RT, Quinn DJ, Allen CCR, Kulakov L, Huang M, Moody TS. Rational Design of a (S)-Selective-Transaminase for Asymmetric Synthesis of (1S)-1-(1,1′-biphenyl-2-yl)ethanamine. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02380] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Daniel F. A. R. Dourado
- School
of Chemistry and Chemical Engineering, Queen’s University Belfast, David
Keir Building, Stranmillis Road, Belfast BT9 5AG, Northern Ireland, United Kingdom
- Department
of Biocatalysis and Isotope Chemistry, Almac Sciences, 20 Seagoe Industrial
Estate, Craigavon BT63
5QD, Northern Ireland, United Kingdom
| | - Stefan Pohle
- Department
of Biocatalysis and Isotope Chemistry, Almac Sciences, 20 Seagoe Industrial
Estate, Craigavon BT63
5QD, Northern Ireland, United Kingdom
| | - Alexandra T. P. Carvalho
- School
of Chemistry and Chemical Engineering, Queen’s University Belfast, David
Keir Building, Stranmillis Road, Belfast BT9 5AG, Northern Ireland, United Kingdom
- Department
of Biocatalysis and Isotope Chemistry, Almac Sciences, 20 Seagoe Industrial
Estate, Craigavon BT63
5QD, Northern Ireland, United Kingdom
| | - Dharmendra S. Dheeman
- Department
of Biocatalysis and Isotope Chemistry, Almac Sciences, 20 Seagoe Industrial
Estate, Craigavon BT63
5QD, Northern Ireland, United Kingdom
| | - Jill M. Caswell
- Department
of Biocatalysis and Isotope Chemistry, Almac Sciences, 20 Seagoe Industrial
Estate, Craigavon BT63
5QD, Northern Ireland, United Kingdom
| | - Timofey Skvortsov
- Department
of Biocatalysis and Isotope Chemistry, Almac Sciences, 20 Seagoe Industrial
Estate, Craigavon BT63
5QD, Northern Ireland, United Kingdom
- School
of Biological Sciences, Queen’s University Belfast, Medical Biology
Centre, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland, United Kingdom
| | - Iain Miskelly
- Department
of Biocatalysis and Isotope Chemistry, Almac Sciences, 20 Seagoe Industrial
Estate, Craigavon BT63
5QD, Northern Ireland, United Kingdom
| | - Rodney T. Brown
- Department
of Biocatalysis and Isotope Chemistry, Almac Sciences, 20 Seagoe Industrial
Estate, Craigavon BT63
5QD, Northern Ireland, United Kingdom
| | - Derek J. Quinn
- Department
of Biocatalysis and Isotope Chemistry, Almac Sciences, 20 Seagoe Industrial
Estate, Craigavon BT63
5QD, Northern Ireland, United Kingdom
| | - Christopher C. R. Allen
- School
of Biological Sciences, Queen’s University Belfast, Medical Biology
Centre, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland, United Kingdom
| | - Leonid Kulakov
- School
of Biological Sciences, Queen’s University Belfast, Medical Biology
Centre, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland, United Kingdom
| | - Meilan Huang
- School
of Chemistry and Chemical Engineering, Queen’s University Belfast, David
Keir Building, Stranmillis Road, Belfast BT9 5AG, Northern Ireland, United Kingdom
| | - Thomas S. Moody
- Department
of Biocatalysis and Isotope Chemistry, Almac Sciences, 20 Seagoe Industrial
Estate, Craigavon BT63
5QD, Northern Ireland, United Kingdom
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26
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Genz M, Melse O, Schmidt S, Vickers C, Dörr M, van den Bergh T, Joosten HJ, Bornscheuer UT. Engineering the Amine Transaminase fromVibrio fluvialistowards Branched-Chain Substrates. ChemCatChem 2016. [DOI: 10.1002/cctc.201601007] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Maika Genz
- Department of Biotechnology & Enzyme Catalysis; Institute of Biochemistry; Ernst-Moritz-Arndt-Universität Greifswald; Felix-Hausdorff-Str. 4 17487 Greifswald Germany
| | - Okke Melse
- Department of Biotechnology & Enzyme Catalysis; Institute of Biochemistry; Ernst-Moritz-Arndt-Universität Greifswald; Felix-Hausdorff-Str. 4 17487 Greifswald Germany
| | - Sandy Schmidt
- Department of Biotechnology & Enzyme Catalysis; Institute of Biochemistry; Ernst-Moritz-Arndt-Universität Greifswald; Felix-Hausdorff-Str. 4 17487 Greifswald Germany
| | - Clare Vickers
- Department of Biotechnology & Enzyme Catalysis; Institute of Biochemistry; Ernst-Moritz-Arndt-Universität Greifswald; Felix-Hausdorff-Str. 4 17487 Greifswald Germany
| | - Mark Dörr
- Department of Biotechnology & Enzyme Catalysis; Institute of Biochemistry; Ernst-Moritz-Arndt-Universität Greifswald; Felix-Hausdorff-Str. 4 17487 Greifswald Germany
| | - Tom van den Bergh
- Bio-Prodict; Nieuwe Marktstraat 54E 6511 AA Nijmegen The Netherlands
| | - Henk-Jan Joosten
- Bio-Prodict; Nieuwe Marktstraat 54E 6511 AA Nijmegen The Netherlands
| | - Uwe T. Bornscheuer
- Department of Biotechnology & Enzyme Catalysis; Institute of Biochemistry; Ernst-Moritz-Arndt-Universität Greifswald; Felix-Hausdorff-Str. 4 17487 Greifswald Germany
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27
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Pavlidis IV, Weiß MS, Genz M, Spurr P, Hanlon SP, Wirz B, Iding H, Bornscheuer UT. Identification of (S)-selective transaminases for the asymmetric synthesis of bulky chiral amines. Nat Chem 2016; 8:1076-1082. [PMID: 27768108 DOI: 10.1038/nchem.2578] [Citation(s) in RCA: 160] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 06/16/2016] [Indexed: 11/09/2022]
Abstract
The use of transaminases to access pharmaceutically relevant chiral amines is an attractive alternative to transition-metal-catalysed asymmetric chemical synthesis. However, one major challenge is their limited substrate scope. Here we report the creation of highly active and stereoselective transaminases starting from fold class I. The transaminases were developed by extensive protein engineering followed by optimization of the identified motif. The resulting enzymes exhibited up to 8,900-fold higher activity than the starting scaffold and are highly stereoselective (up to >99.9% enantiomeric excess) in the asymmetric synthesis of a set of chiral amines bearing bulky substituents. These enzymes should therefore be suitable for use in the synthesis of a wide array of potential intermediates for pharmaceuticals. We also show that the motif can be engineered into other protein scaffolds with sequence identities as low as 70%, and as such should have a broad impact in the field of biocatalytic synthesis and enzyme engineering.
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Affiliation(s)
- Ioannis V Pavlidis
- Department of Biotechnology, Institute of Biochemistry, University of Greifswald, Felix-Hausdorff-Str. 4, D-17489 Greifswald, Germany.,Department of Biochemistry, University of Kassel, Heinrich-Plett-Str. 40, D-34132 Kassel, Germany
| | - Martin S Weiß
- Department of Biotechnology, Institute of Biochemistry, University of Greifswald, Felix-Hausdorff-Str. 4, D-17489 Greifswald, Germany
| | - Maika Genz
- Department of Biotechnology, Institute of Biochemistry, University of Greifswald, Felix-Hausdorff-Str. 4, D-17489 Greifswald, Germany
| | - Paul Spurr
- Process Research and Development, Biocatalysis, F. Hoffmann-LaRoche Ltd, Grenzacher Str. 124, 4070 Basel, Switzerland
| | - Steven P Hanlon
- Process Research and Development, Biocatalysis, F. Hoffmann-LaRoche Ltd, Grenzacher Str. 124, 4070 Basel, Switzerland
| | - Beat Wirz
- Process Research and Development, Biocatalysis, F. Hoffmann-LaRoche Ltd, Grenzacher Str. 124, 4070 Basel, Switzerland
| | - Hans Iding
- Process Research and Development, Biocatalysis, F. Hoffmann-LaRoche Ltd, Grenzacher Str. 124, 4070 Basel, Switzerland
| | - Uwe T Bornscheuer
- Department of Biotechnology, Institute of Biochemistry, University of Greifswald, Felix-Hausdorff-Str. 4, D-17489 Greifswald, Germany
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28
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Dörr M, Fibinger MP, Last D, Schmidt S, Santos-Aberturas J, Böttcher D, Hummel A, Vickers C, Voss M, Bornscheuer UT. Fully automatized high-throughput enzyme library screening using a robotic platform. Biotechnol Bioeng 2016; 113:1421-32. [DOI: 10.1002/bit.25925] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Revised: 12/15/2015] [Accepted: 12/28/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Mark Dörr
- Department of Biotechnology and Enzyme Catalysis; Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17489 Germany
| | - Michael P.C. Fibinger
- Department of Biotechnology and Enzyme Catalysis; Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17489 Germany
| | - Daniel Last
- Department of Biotechnology and Enzyme Catalysis; Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17489 Germany
| | - Sandy Schmidt
- Department of Biotechnology and Enzyme Catalysis; Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17489 Germany
| | - Javier Santos-Aberturas
- Department of Biotechnology and Enzyme Catalysis; Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17489 Germany
| | - Dominique Böttcher
- Department of Biotechnology and Enzyme Catalysis; Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17489 Germany
| | - Anke Hummel
- Department of Biotechnology and Enzyme Catalysis; Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17489 Germany
| | - Clare Vickers
- Department of Biotechnology and Enzyme Catalysis; Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17489 Germany
| | - Moritz Voss
- Department of Biotechnology and Enzyme Catalysis; Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17489 Germany
| | - Uwe T. Bornscheuer
- Department of Biotechnology and Enzyme Catalysis; Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 Greifswald 17489 Germany
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