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Luo Q, Zhou G, Li Z, Dong J, Zhao H, Xu H, Lu X. ω-transaminase-catalyzed synthesis of (R)-2-(1-aminoethyl)-4-fluorophenol, a chiral intermediate of novel anti-tumor drugs. Enzyme Microb Technol 2024; 175:110406. [PMID: 38330706 DOI: 10.1016/j.enzmictec.2024.110406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 01/02/2024] [Accepted: 01/24/2024] [Indexed: 02/10/2024]
Abstract
The chiral amine (R)-2-(1-aminoethyl)-4-fluorophenol has attracted increasing attentions in recent years in the field of pharmaceuticals because of its important use as a building block in the synthesis of novel anti-tumor drugs targeting tropomyosin receptor kinases. In the present study, a ω-transaminase (ωTA) library consisting of 21 (R)-enantioselective enzymes was constructed and screened for the asymmetric biosynthesis of (R)-2-(1-aminoethyl)-4-fluorophenol from its prochiral ketone. Using (R)-α-methylbenzylamine, D-alanine, or isopropylamine as amino donor, 18 ωTAs were identified with target activity and the enzyme AbTA, which was originally identified from Arthrobacter sp. KNK168, was found to be a potent candidate. The E. coli whole cells expressing AbTA could be used as catalysts. The optimal temperature and pH for the activity were 35-40 °C and pH8.0, respectively. Simple alcohols (such as ethanol, isopropanol, and methanol) and dimethyl sulfoxide were shown to be good cosolvents. High activities were detected when using ethanol and dimethyl sulfoxide at the concentrations of 5-20%. In the scaled-up reaction of 1-liter containing 13 mM ketone substrate, about 50% conversion was achieved in 24 h. 6.4 mM (R)-2-(1-aminoethyl)-4-fluorophenol was generated. After a simple and efficient process of product isolation and purification (with 98.8% recovery), 0.986 g yellowish powder of the product (R)-2-(1-aminoethyl)-4-fluorophenol with high (R)-enantiopurity (up to 100% enantiomeric excess) was obtained. This study established an overall process for the biosynthesis of the high value pharmaceutical chiral amine (R)-2-(1-aminoethyl)-4-fluorophenol by ωTA. Its applicable potential was exemplified by gram-scale production.
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Affiliation(s)
- Quan Luo
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Songling Rd 189, Qingdao 266101, China; Shandong Energy Institute, Songling Rd 189, Qingdao 266101, China; Qingdao New Energy Shandong Laboratory, Songling Rd 189, Qingdao 266101, China
| | - Guan Zhou
- Sphinx Scientific Laboratory (Tianjin) Co., Ltd., No. 80 Haiyun Street, Tianjin 300457, China
| | - Zhongxia Li
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Songling Rd 189, Qingdao 266101, China; College of Life Science and Technology, Harbin Normal University, Shida Rd 1, Harbin 150025, China
| | - Jiangpeng Dong
- Sphinx Scientific Laboratory (Tianjin) Co., Ltd., No. 80 Haiyun Street, Tianjin 300457, China
| | - Hang Zhao
- Sphinx Scientific Laboratory (Tianjin) Co., Ltd., No. 80 Haiyun Street, Tianjin 300457, China
| | - Huifang Xu
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Songling Rd 189, Qingdao 266101, China; Shandong Energy Institute, Songling Rd 189, Qingdao 266101, China; Qingdao New Energy Shandong Laboratory, Songling Rd 189, Qingdao 266101, China.
| | - Xuefeng Lu
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Songling Rd 189, Qingdao 266101, China; Shandong Energy Institute, Songling Rd 189, Qingdao 266101, China; Qingdao New Energy Shandong Laboratory, Songling Rd 189, Qingdao 266101, China; Marine Biology and Biotechnology Laboratory, Qingdao National Laboratory for Marine Science and Technology, Wenhai Rd 168, Qingdao 266237, China.
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2
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Xu M, Tan Z, Qi S, Na Q, Zhang X, Zhuang W, Zhu C, Ying H, Shen T. Synthesis of 3-Phenylserine by a Two-enzyme Cascade System with PLP Cofactor. Chemistry 2024; 30:e202302959. [PMID: 38012090 DOI: 10.1002/chem.202302959] [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: 09/12/2023] [Revised: 11/12/2023] [Accepted: 11/27/2023] [Indexed: 11/29/2023]
Abstract
A two-enzyme cascade system containing ω-transaminase (ω-TA) and L-threonine aldolase (L-ThA) was reported for the synthesis of 3-Phenylserine starting from benzylamine, and PLP was utilized as the only cofactor in these both two enzymes reaction system. Based on the transamination results, benzylamine was optimized as an advantageous amino donor as confirmed by MD simulation results. This cascade reaction system could not only facilitate the in situ removal of the co-product benzaldehyde, enhancing the economic viability of the reaction, but also establish a novel pathway for synthesizing high-value phenyl-serine derivatives. In our study, nearly 95 % of benzylamine was converted, yielding over 54 % of 3-Phenylserine under the optimized conditions cascade reaction.
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Affiliation(s)
- Mengjiao Xu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Zhuotao Tan
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Siyu Qi
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Qi Na
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Xiaowang Zhang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Wei Zhuang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Chenjie Zhu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Hanjie Ying
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Tao Shen
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
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3
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Yang L, Zhang K, Xu M, Xie Y, Meng X, Wang H, Wei D. Mechanism-Guided Computational Design of ω-Transaminase by Reprograming of High-Energy-Barrier Steps. Angew Chem Int Ed Engl 2022; 61:e202212555. [PMID: 36300723 DOI: 10.1002/anie.202212555] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Indexed: 11/06/2022]
Abstract
ω-Transaminases (ω-TAs) show considerable potential for the synthesis of chiral amines. However, their low catalytic efficiency towards bulky substrates limits their application, and complicated catalytic mechanisms prevent precise enzyme design. Herein, we address this challenge using a mechanism-guided computational enzyme design strategy by reprograming the transition and ground states in key reaction steps. The common features among the three high-energy-barrier steps responsible for the low catalytic efficiency were revealed using quantum mechanics (QM). Five key residues were simultaneously tailored to stabilize the rate-limiting transition state with the aid of the Rosetta design. The 14 top-ranked variants showed 16.9-143-fold improved catalytic activity. The catalytic efficiency of the best variant, M9 (Q25F/M60W/W64F/I266A), was significantly increased, with a 1660-fold increase in kcat /Km and a 1.5-26.8-fold increase in turnover number (TON) towards various indanone derivatives.
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Affiliation(s)
- Lin Yang
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology East China University of Science and Technology, Shanghai, P. R. China
| | - Kaiyue Zhang
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology East China University of Science and Technology, Shanghai, P. R. China
| | - Meng Xu
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology East China University of Science and Technology, Shanghai, P. R. China
| | - Youyu Xie
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology East China University of Science and Technology, Shanghai, P. R. China
| | - Xiangqi Meng
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology East China University of Science and Technology, Shanghai, P. R. China
| | - Hualei Wang
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology East China University of Science and Technology, Shanghai, P. R. China
| | - Dongzhi Wei
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology East China University of Science and Technology, Shanghai, P. R. China
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4
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Sheludko YV, Slagman S, Gittings S, Charnock SJ, Land H, Berglund P, Fessner WD. Enantioselective Synthesis of Pharmaceutically Relevant Bulky Arylbutylamines Using Engineered Transaminases. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | | | - Samantha Gittings
- Prozomix Limited UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Simon J. Charnock
- Prozomix Limited UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
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5
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Engineering Novel ( R)-Selective Transaminase for Efficient Symmetric Synthesis of d-Alanine. Appl Environ Microbiol 2022; 88:e0006222. [PMID: 35465694 DOI: 10.1128/aem.00062-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
d-Alanine belongs to nonessential amino acids that have diverse applications in the fields of food and health care. (R)-transaminase [(R)-TA]-catalyzed asymmetric amination of pyruvate is a feasible alternative for the synthesis of d-alanine, but low catalytic efficiency and thermostability limit enzymatic utilization. In this work, several potential (R)-TAs were discovered using NCBI database mining synchronously with enzymatic structure-function analysis, among which Capronia epimyces TA (CeTA) showed the highest activity for amination of pyruvate using (R)-α-methylbenzylamine as the donor. Furthermore, enzymatic residues surrounding a large catalysis pocket were subjected to saturation and combinatorial mutagenesis, and positive mutant F113T showed dramatic improvement in activity and thermostability. Molecular modeling indicated that the substitution of phenylalanine with threonine afforded alleviation of steric hindrance in the pocket and induced formation of additional hydrogen bonds with neighboring residues. Finally, using recombinant cells containing F113T as a biocatalyst, the conversion yield of amination of 100 mM pyruvate to d-alanine achieved up to 95.2%, which seemed to be the highest level in the literature regarding synthesis of d-alanine using TAs. The inherent characteristics rendered CeTA F113T a promising platform for efficient preparation of d-alanine operating with high productivity. IMPORTANCE d-Alanine is an important compound with many valuable applications. Its asymmetric synthesis employing (R)-ω-TA is considered an attractive choice. According to the stereoselectivity, ω-TAs have either (R)- or (S)-enantiopreference. There has been a variety of literature regarding screening, characterizing, and molecular modification of (S)-ω-TAs; in contrast, the research about (R)-ω-TA has lagged behind. In this work, we identify several (R)-ω-TAs and succeeded in creating mutant F113T, which showed not only better efficiency toward pyruvate but also higher thermostability compared with the original enzyme. The obtained original enzymes and positive mutants displayed important application value for pushing symmetric synthesis of d-alanine to a higher level.
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Baud D, Tappertzhofen N, Moody TS, Ward JM, Hailes HC. Stereoselective Transaminase‐Mediated Synthesis of Serotonin and Melatonin Receptor Agonists. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200146] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Damien Baud
- Department of Chemistry University College London 20 Gordon Street London WC1H 0AJ, U.K
| | - Nadine Tappertzhofen
- Department of Chemistry University College London 20 Gordon Street London WC1H 0AJ, U.K
| | - Thomas S. Moody
- Almac Department of Biocatalysis & Isotope Chemistry 20 Seagoe Industrial Estate Craigavon BT63 5QD N. Ireland, U.K
- Arran Chemical Company Limited Unit 1 Monksland Industrial Estate Athlone Co. Roscommon Ireland
| | - John M. Ward
- University College London Department of Biochemical Engineering Bernard Katz Building London WC1E 6BT, U.K
| | - Helen C. Hailes
- Department of Chemistry University College London 20 Gordon Street London WC1H 0AJ, U.K
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7
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Xie YY, Wang J, Yang L, Wang W, Liu QH, Wang H, Wei D. The identification and application of a robust ω-transaminase with high tolerance of substrate and isopropylamine from a directed soil metagenome. Catal Sci Technol 2022. [DOI: 10.1039/d1cy02032c] [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
The ω-transaminase-mediated asymmetric amination of a ketone substrate has gained significant attention for its immense potential to synthesize chiral amine pharmaceuticals and precursors. However, few of these have been authentically...
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Luo W, Hu J, Lu J, Zhang H, Wang X, Liu Y, Dong L, Yu X. One pot cascade synthesis of L-2-aminobutyric acid employing ω-transaminase from Paracoccus pantotrophus. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Zhang Z, Liu Y, Zhao J, Li W, Hu R, Li X, Li A, Wang Y, Ma L. Active-site engineering of ω-transaminase from Ochrobactrum anthropi for preparation of L-2-aminobutyric acid. BMC Biotechnol 2021; 21:55. [PMID: 34563172 PMCID: PMC8466713 DOI: 10.1186/s12896-021-00713-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 09/06/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The unnatural amino acid, L-2-aminobutyric acid (L-ABA) is an essential chiral building block for various pharmaceutical drugs, such as the antiepileptic drug levetiracetam and the antituberculosis drug ethambutol. The present study aims at obtaining variants of ω-transaminase from Ochrobactrum anthropi (OATA) with high catalytic activity to α-ketobutyric acid through protein engineering. RESULTS Based on the docking model using α-ketobutyric acid as the ligand, 6 amino acid residues, consisting of Y20, L57, W58, G229, A230 and M419, were chosen for saturation mutagenesis. The results indicated that L57C, M419I, and A230S substitutions demonstrated the highest elevation of enzymatic activity among 114 variants. Subsequently, double substitutions combining L57C and M419I caused a further increase of the catalytic efficiency to 3.2-fold. This variant was applied for threonine deaminase/OATA coupled reaction in a 50-mL reaction system with 300 mM L-threonine as the substrate. The reaction was finished in 12 h and the conversion efficiency of L-threonine into L-ABA was 94%. The purity of L-ABA is 75%, > 99% ee. The yield of L-ABA was 1.15 g. CONCLUSION This study provides a basis for further engineering of ω-transaminase for producing chiral amines from keto acids substrates.
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Affiliation(s)
- Zhiwei Zhang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, College of Life Sciences, Hubei University, 368 Youyi Road, Wuchang, Wuhan, 430062, China
| | - Yang Liu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, College of Life Sciences, Hubei University, 368 Youyi Road, Wuchang, Wuhan, 430062, China
| | - Jing Zhao
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, College of Life Sciences, Hubei University, 368 Youyi Road, Wuchang, Wuhan, 430062, China
| | - Wenqiang Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, College of Life Sciences, Hubei University, 368 Youyi Road, Wuchang, Wuhan, 430062, China
| | - Ruiwen Hu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, College of Life Sciences, Hubei University, 368 Youyi Road, Wuchang, Wuhan, 430062, China
| | - Xia Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, College of Life Sciences, Hubei University, 368 Youyi Road, Wuchang, Wuhan, 430062, China
| | - Aitao Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, College of Life Sciences, Hubei University, 368 Youyi Road, Wuchang, Wuhan, 430062, China
| | - Yaping Wang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, College of Life Sciences, Hubei University, 368 Youyi Road, Wuchang, Wuhan, 430062, China.
| | - Lixin Ma
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, College of Life Sciences, Hubei University, 368 Youyi Road, Wuchang, Wuhan, 430062, China.
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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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Wang Y, Feng J, Dong W, Chen X, Yao P, Wu Q, Zhu D. Improving Catalytic Activity and Reversing Enantio‐Specificity of ω‐Transaminase by Semi‐Rational Engineering en Route to Chiral Bulky β‐Amino Esters. ChemCatChem 2021. [DOI: 10.1002/cctc.202100503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yingang Wang
- University of Chinese Academy of Sciences No.19(A) Yuquan Road Shijingshan District, Beijing 100049 P.R. China
- National Technology Innovation Center for Synthetic Biology National Engineering Laboratory for Industrial Enzymes and Tianjin Engineering Research Center of Biocatalytic Technology Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences 32 Xi Qi Dao Tianjin Airport Economic Area, Tianjin 300308 P.R. China
| | - Jinhui Feng
- University of Chinese Academy of Sciences No.19(A) Yuquan Road Shijingshan District, Beijing 100049 P.R. China
- National Technology Innovation Center for Synthetic Biology National Engineering Laboratory for Industrial Enzymes and Tianjin Engineering Research Center of Biocatalytic Technology Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences 32 Xi Qi Dao Tianjin Airport Economic Area, Tianjin 300308 P.R. China
| | - Wenyue Dong
- National Technology Innovation Center for Synthetic Biology National Engineering Laboratory for Industrial Enzymes and Tianjin Engineering Research Center of Biocatalytic Technology Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences 32 Xi Qi Dao Tianjin Airport Economic Area, Tianjin 300308 P.R. China
| | - Xi Chen
- University of Chinese Academy of Sciences No.19(A) Yuquan Road Shijingshan District, Beijing 100049 P.R. China
- National Technology Innovation Center for Synthetic Biology National Engineering Laboratory for Industrial Enzymes and Tianjin Engineering Research Center of Biocatalytic Technology Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences 32 Xi Qi Dao Tianjin Airport Economic Area, Tianjin 300308 P.R. China
| | - Peiyuan Yao
- University of Chinese Academy of Sciences No.19(A) Yuquan Road Shijingshan District, Beijing 100049 P.R. China
- National Technology Innovation Center for Synthetic Biology National Engineering Laboratory for Industrial Enzymes and Tianjin Engineering Research Center of Biocatalytic Technology Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences 32 Xi Qi Dao Tianjin Airport Economic Area, Tianjin 300308 P.R. China
| | - Qiaqing Wu
- University of Chinese Academy of Sciences No.19(A) Yuquan Road Shijingshan District, Beijing 100049 P.R. China
- National Technology Innovation Center for Synthetic Biology National Engineering Laboratory for Industrial Enzymes and Tianjin Engineering Research Center of Biocatalytic Technology Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences 32 Xi Qi Dao Tianjin Airport Economic Area, Tianjin 300308 P.R. China
| | - Dunming Zhu
- University of Chinese Academy of Sciences No.19(A) Yuquan Road Shijingshan District, Beijing 100049 P.R. China
- National Technology Innovation Center for Synthetic Biology National Engineering Laboratory for Industrial Enzymes and Tianjin Engineering Research Center of Biocatalytic Technology Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences 32 Xi Qi Dao Tianjin Airport Economic Area, Tianjin 300308 P.R. China
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12
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Choi Y, Han SW, Kim JS, Jang Y, Shin JS. Biochemical characterization and synthetic application of aromatic L-amino acid decarboxylase from Bacillus atrophaeus. Appl Microbiol Biotechnol 2021; 105:2775-2785. [PMID: 33713143 DOI: 10.1007/s00253-021-11122-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 01/04/2021] [Accepted: 01/16/2021] [Indexed: 12/29/2022]
Abstract
Aromatic L-amino acid decarboxylases (AADCs) are ubiquitously found in higher organisms owing to their physiological role in the synthesis of neurotransmitters and alkaloids. However, bacterial AADC has not attracted much attention because of its rather limited availability and narrow substrate range. Here, we examined the biochemical properties of AADC from Bacillus atrophaeus (AADC-BA) and assessed the synthetic feasibility of the enzyme for the preparation of monoamine neurotransmitters. AADC-BA was expressed in Escherichia coli BL21(DE3) and the purified enzyme showed a specific activity of 2.6 ± 0.4 U/mg for 10 mM L-phenylalanine (L-Phe) at 37 °C. AADC-BA showed optimal pH and temperature ranges at 7-8 and 37-45 °C, respectively. The KM and kcat values for L-Phe were 7.2 mM and 7.4 s-1, respectively, at pH 7.0 and 37 °C. Comparison of the kinetic constants at different temperatures revealed that the temperature dependency of the enzyme was mainly determined by catalytic turnover rather than substrate binding. AADC-BA showed a broad substrate scope for various aromatic amino acids, including L-Phe, L-tryptophan (610% relative to L-Phe), L-tyrosine (12%), 3,4-dihydroxyphenyl-L-alanine (24%), 5-hydroxy-L-tryptophan (L-HTP, 71%), 4-chloro-L-phenylalanine (520%), and 4-nitro-L-phenylalanine (450%). Homology modeling and docking simulations were carried out and were consistent with the observed substrate specificity. To demonstrate the synthetic potential of AADC-BA, we carried out the production of serotonin by decarboxylation of L-HTP. The reaction yield of serotonin reached 98% after 1 h at the reaction conditions of 50 mM L-HTP and 4 U/mL AADC-BA. Moreover, we carried out preparative-scale decarboxylation of L-Phe (100 mM in 40-mL reaction mixture) and isolated the resulting 2-phenylethylamine (51% recovery yield). We expect that the broad substrate specificity of AADC-BA can be exploited to produce various aromatic biogenic amines. KEY POINTS: • AADC-BA showed broad substrate specificity for various aromatic amino acids. • The substrate specificity was elucidated by in silico structural modeling. • The synthetic potential of AADC-BA was demonstrated for the production of biogenic amines.
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Affiliation(s)
- Yeri Choi
- Department of Biotechnology, Yonsei University, 50 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, South Korea
| | - Sang-Woo Han
- Department of Biotechnology, Yonsei University, 50 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, South Korea
| | - Jun-Sung Kim
- Department of Biotechnology, Yonsei University, 50 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, South Korea
| | - Youngho Jang
- Department of Biotechnology, Yonsei University, 50 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, South Korea
| | - Jong-Shik Shin
- Department of Biotechnology, Yonsei University, 50 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, South Korea.
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13
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Han R, Cao X, Fang H, Zhou J, Ni Y. Structure-based engineering of ω-transaminase for enhanced catalytic efficiency toward (R)-(+)-1-(1-naphthyl)ethylamine synthesis. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2020.111368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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14
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Wu S, Snajdrova R, Moore JC, Baldenius K, Bornscheuer UT. Biocatalysis: Enzymatic Synthesis for Industrial Applications. Angew Chem Int Ed Engl 2021; 60:88-119. [PMID: 32558088 PMCID: PMC7818486 DOI: 10.1002/anie.202006648] [Citation(s) in RCA: 522] [Impact Index Per Article: 174.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Indexed: 12/12/2022]
Abstract
Biocatalysis has found numerous applications in various fields as an alternative to chemical catalysis. The use of enzymes in organic synthesis, especially to make chiral compounds for pharmaceuticals as well for the flavors and fragrance industry, are the most prominent examples. In addition, biocatalysts are used on a large scale to make specialty and even bulk chemicals. This review intends to give illustrative examples in this field with a special focus on scalable chemical production using enzymes. It also discusses the opportunities and limitations of enzymatic syntheses using distinct examples and provides an outlook on emerging enzyme classes.
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Affiliation(s)
- Shuke Wu
- Institute of BiochemistryDept. of Biotechnology & Enzyme CatalysisGreifswald UniversityFelix-Hausdorff-Strasse 417487GreifswaldGermany
| | - Radka Snajdrova
- Novartis Institutes for BioMedical ResearchGlobal Discovery Chemistry4056BaselSwitzerland
| | - Jeffrey C. Moore
- Process Research and DevelopmentMerck & Co., Inc.126 E. Lincoln AveRahwayNJ07065USA
| | - Kai Baldenius
- Baldenius Biotech ConsultingHafenstr. 3168159MannheimGermany
| | - Uwe T. Bornscheuer
- Institute of BiochemistryDept. of Biotechnology & Enzyme CatalysisGreifswald UniversityFelix-Hausdorff-Strasse 417487GreifswaldGermany
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15
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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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16
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Structural and Functional Analysis of the Only Two Pyridoxal 5′-Phosphate-Dependent Fold Type IV Transaminases in Bacillus altitudinis W3. Catalysts 2020. [DOI: 10.3390/catal10111308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Aminotransferases are employed as industrial biocatalysts to produce chiral amines with high enantioselectivity and yield. BpTA-1 and BpTA-2 are the only two pyridoxal 5′-phosphate-dependent fold type IV transaminase enzymes in Bacillus altitudinis W3. Herein, we compared the structures and biochemical characteristics of BpTA-1 and BpTA-2 using bioinformatic analysis, circular dichroism spectroscopy, atomic force microscopy and other approaches. BpTA-1 and BpTA-2 are similar overall; both form homodimers and utilize a catalytic lysine. However, there are distinct differences in the substrate cofactor-binding pocket, molecular weight and the proportion of the secondary structure. Both enzymes have the same stereoselectivity but different enzymatic properties. BpTA-2 is more active under partial alkaline and ambient temperature conditions and BpTA-1 is more sensitive to pH and temperature. BpTA-2 as novel enzyme not only fills the building blocks of transaminase but also has broader industrial application potential for (R)-α-phenethylamines than BpTA-1. Structure-function relationships were explored to assess similarities and differences. The findings lay the foundation for modifying these enzymes via protein engineering to enhance their industrial application potential.
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17
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In situ removal of inhibitory products with ion exchange resins for enhanced synthesis of chiral amines using ω-transaminase. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Creation of a robust and R-selective ω-amine transaminase for the asymmetric synthesis of sitagliptin intermediate on a kilogram scale. Enzyme Microb Technol 2020; 141:109655. [PMID: 33051014 DOI: 10.1016/j.enzmictec.2020.109655] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/23/2020] [Accepted: 09/01/2020] [Indexed: 12/17/2022]
Abstract
The creation of an R-selective ω-amine transaminase (ω-ATA) as biocatalyst is crucial for the asymmetric amination of prochiral ketones to produce sitagliptin intermediates because rare ω-ATAs are R-selective in nature and most of them suffer from poor stability and low activity toward bulky prochiral ketones. Here, the gene of an R-selective ω-ATA was cloned from Arthrobacter cumminsii ZJUT212 (AcATA) and expressed in Escherichia coli. The best variants (M1 + M122H and M1+T134 G) were obtained using a semi-rational protein design after screening. These variants not only exhibited improved activity and substrate affinity but also enhanced stability in aqueous phase containing 20 % dimethyl sulfoxide. The conversion of asymmetric amination on 50 g/L pro-sitagliptin ketone PTfpB (1-[1-piperidinyl]-4-[2,4,5-trifluorophenyl]-1,3-butanedione) achieved 92 %, with an extremely high e.e. of >99 %, using 2 gDCW/L E. coli cells harboring M1 + M122H as biocatalyst. In the kilogram-scale experiment, approximately 40 kg of (R)-APTfpB (e.e. >99 %) was produced within 30 h when 50 kg PTfpB was used as the substrate. Furthermore, the space-time yield reached ≈32 g/(L·d).
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19
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Structural studies reveal flexible roof of active site responsible for ω-transaminase CrmG overcoming by-product inhibition. Commun Biol 2020; 3:455. [PMID: 32814814 PMCID: PMC7438487 DOI: 10.1038/s42003-020-01184-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 07/29/2020] [Indexed: 12/16/2022] Open
Abstract
Amine compounds biosynthesis using ω-transaminases has received considerable attention in the pharmaceutical industry. However, the application of ω-transaminases was hampered by the fundamental challenge of severe by-product inhibition. Here, we report that ω-transaminase CrmG from Actinoalloteichus cyanogriseus WH1-2216-6 is insensitive to inhibition from by-product α-ketoglutarate or pyruvate. Combined with structural and QM/MM studies, we establish the detailed catalytic mechanism for CrmG. Our structural and biochemical studies reveal that the roof of the active site in PMP-bound CrmG is flexible, which will facilitate the PMP or by-product to dissociate from PMP-bound CrmG. Our results also show that amino acceptor caerulomycin M (CRM M), but not α-ketoglutarate or pyruvate, can form strong interactions with the roof of the active site in PMP-bound CrmG. Based on our results, we propose that the flexible roof of the active site in PMP-bound CrmG may facilitate CrmG to overcome inhibition from the by-product.
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20
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Wu S, Snajdrova R, Moore JC, Baldenius K, Bornscheuer UT. Biokatalyse: Enzymatische Synthese für industrielle Anwendungen. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006648] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Shuke Wu
- Institut für Biochemie Abt. Biotechnologie & Enzymkatalyse Universität Greifswald Felix-Hausdorff-Straße 4 17487 Greifswald Deutschland
| | - Radka Snajdrova
- Novartis Institutes for BioMedical Research Global Discovery Chemistry 4056 Basel Schweiz
| | - Jeffrey C. Moore
- Process Research and Development Merck & Co., Inc. 126 E. Lincoln Ave Rahway NJ 07065 USA
| | - Kai Baldenius
- Baldenius Biotech Consulting Hafenstraße 31 68159 Mannheim Deutschland
| | - Uwe T. Bornscheuer
- Institut für Biochemie Abt. Biotechnologie & Enzymkatalyse Universität Greifswald Felix-Hausdorff-Straße 4 17487 Greifswald Deutschland
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21
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Soluble expression and biomimetic immobilization of a ω-transaminase from Bacillus subtilis: Development of an efficient and recyclable biocatalyst. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Kinetic Analysis of R-Selective ω-Transaminases for Determination of Intrinsic Kinetic Parameters and Computational Modeling of Kinetic Resolution of Chiral Amine. Appl Biochem Biotechnol 2020; 191:92-103. [PMID: 31997135 DOI: 10.1007/s12010-020-03240-x] [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: 10/12/2019] [Accepted: 01/08/2020] [Indexed: 12/15/2022]
Abstract
Reliable kinetic parameters of enzymes are of paramount importance for a precise understanding of catalytic performance, which is essential for enzyme engineering and process optimization. Here, we developed a simple and convenient method to determine intrinsic kinetic parameters of R-selective ω-transaminases (ω-TAs) with a minimal set of kinetic data. Using (R)-α-methylbenzylamine ((R)-α-MBA) and pyruvate as a substrate pair, two R-selective ω-TAs from Arthrobacter sp. and Aspergillus fumigatus were subjected to kinetic measurements. In contrast to S-selective ω-TAs, both R-selective ω-TAs were observed to be devoid of substrate inhibition by pyruvate. Double reciprocal plot analysis was carried out with two sets of kinetic data obtained at varying concentrations of (R)-α-MBA under a fixed concentration of pyruvate and vice versa, leading to the determination of three intrinsic kinetic parameters, i.e., one kcat and two KM values, using three regression constants. The validity of the kinetic parameters was verified by a self-consistency test using a regression constant left out in the kinetic parameter determination, showing that deviations of calculated regression constants from the experimental ones were less than 15%. Because the kinetic parameters for (R)-α-MBA and pyruvate are not apparent but intrinsic, a cosubstrate substitution method enabled rapid determination of intrinsic parameters for a new substrate pair using just one set of kinetic data. Eventually, computational modeling of kinetic resolution of rac-α-MBA was carried out and showed a good agreement with experimental reaction progresses.
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23
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Han S, Shin J. Rapid and Quantitative Profiling of Substrate Specificity of ω‐Transaminases for Ketones. ChemCatChem 2019. [DOI: 10.1002/cctc.201900399] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sang‐Woo Han
- Department of BiotechnologyYonsei University Yonsei-Ro 50, Seodaemun-Gu Seoul 03722 South Korea
| | - Jong‐Shik Shin
- Department of BiotechnologyYonsei University Yonsei-Ro 50, Seodaemun-Gu Seoul 03722 South Korea
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24
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Han SW, Jang Y, Shin JS. In Vitro and In Vivo One-Pot Deracemization of Chiral Amines by Reaction Pathway Control of Enantiocomplementary ω-Transaminases. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01546] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sang-Woo Han
- Department of Biotechnology, Yonsei University, Yonsei-Ro 50, Seodaemun-Gu, Seoul 03722, South Korea
| | - Youngho Jang
- Department of Biotechnology, Yonsei University, Yonsei-Ro 50, Seodaemun-Gu, Seoul 03722, South Korea
| | - Jong-Shik Shin
- Department of Biotechnology, Yonsei University, Yonsei-Ro 50, Seodaemun-Gu, Seoul 03722, South Korea
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25
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St-Jacques AD, Eyahpaise MÈC, Chica RA. Computational Design of Multisubstrate Enzyme Specificity. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01464] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Antony D. St-Jacques
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Marie-Ève C. Eyahpaise
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Roberto A. Chica
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
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26
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Kim H, Han S, Shin J. Combinatorial Mutation Analysis of ω‐Transaminase to Create an Engineered Variant Capable of Asymmetric Amination of Isobutyrophenone. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900184] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Hong‐Gon Kim
- Department of BiotechnologyYonsei University Yonsei-Ro 50, Seodaemun-Gu Seoul 03722 South Korea
| | - Sang‐Woo Han
- Department of BiotechnologyYonsei University Yonsei-Ro 50, Seodaemun-Gu Seoul 03722 South Korea
| | - Jong‐Shik Shin
- Department of BiotechnologyYonsei University Yonsei-Ro 50, Seodaemun-Gu Seoul 03722 South Korea
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27
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Kelefiotis-Stratidakis P, Tyrikos-Ergas T, Pavlidis IV. The challenge of using isopropylamine as an amine donor in transaminase catalysed reactions. Org Biomol Chem 2019; 17:1634-1642. [PMID: 30394478 DOI: 10.1039/c8ob02342e] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Amine transaminases (ATAs) propose an appealing alternative to transition metal catalysts as they can provide chiral amines of high purity from pro-chiral compounds by asymmetric synthesis. Industrial interest on ATAs arises from the fact that chiral amines are present in a wide spectrum of pharmaceutical and other high value-added chiral compounds and building blocks. Despite their potential as useful synthetic tools, several drawbacks such as challenges associated with the thermodynamic equilibrium can still impede their utilization. Several methods have been developed to displace the equilibrium, such as the use of alanine as an amine donor and the subsequent removal of pyruvate with a two-enzyme system, or the use of o-xylylene diamine. To date, the preferred amine donor remains isopropylamine (IPA), as the produced acetone can be removed easily under low pressure or slight heating, without complicating the process with other enzymes. Despite its small size, IPA is not widely accepted from wild-type ATAs, and this fact compromises its wide applicability. Herein, we index the reported biocatalytic aminations with IPA, comparing the sequences, while we discuss significant parameters of the process, such as the effect of temperature and pH, as well as the protein engineering and process development advances in the field. This information is expected to provide an insight for potential designs of tailor-made ATAs and IPA processes.
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28
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Activity Improvements of an Engineered ω-transaminase for Ketones Are Positively Correlated with Those for Cognate Amines. BIOTECHNOL BIOPROC E 2019. [DOI: 10.1007/s12257-018-0377-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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29
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Bioprospecting Reveals Class III ω-Transaminases Converting Bulky Ketones and Environmentally Relevant Polyamines. Appl Environ Microbiol 2019; 85:AEM.02404-18. [PMID: 30413473 PMCID: PMC6328768 DOI: 10.1128/aem.02404-18] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Accepted: 11/04/2018] [Indexed: 12/31/2022] Open
Abstract
Amine transaminases of the class III ω-TAs are key enzymes for modification of chemical building blocks, but finding those capable of converting bulky ketones and (R) amines is still challenging. Here, by an extensive analysis of the substrate spectra of 10 class III ω-TAs, we identified a number of residues playing a role in determining the access and positioning of bulky ketones, bulky amines, and (R)- and (S) amines, as well as of environmentally relevant polyamines, particularly putrescine. The results presented can significantly expand future opportunities for designing (R)-specific class III ω-TAs to convert valuable bulky ketones and amines, as well as for deepening the knowledge into the polyamine catabolic pathways. Amination of bulky ketones, particularly in (R) configuration, is an attractive chemical conversion; however, known ω-transaminases (ω-TAs) show insufficient levels of performance. By applying two screening methods, we discovered 10 amine transaminases from the class III ω-TA family that were 38% to 76% identical to homologues. We present examples of such enzymes preferring bulky ketones over keto acids and aldehydes with stringent (S) selectivity. We also report representatives from the class III ω-TAs capable of converting (R) and (S) amines and bulky ketones and one that can convert amines with longer alkyl substituents. The preference for bulky ketones was associated with the presence of a hairpin region proximal to the conserved Arg414 and residues conforming and close to it. The outward orientation of Arg414 additionally favored the conversion of (R) amines. This configuration was also found to favor the utilization of putrescine as an amine donor, so that class III ω-TAs with Arg414 in outward orientation may participate in vivo in the catabolism of putrescine. The positioning of the conserved Ser231 also contributes to the preference for amines with longer alkyl substituents. Optimal temperatures for activity ranged from 45 to 65°C, and a few enzymes retained ≥50% of their activity in water-soluble solvents (up to 50% [vol/vol]). Hence, our results will pave the way to design, in the future, new class III ω-TAs converting bulky ketones and (R) amines for the production of high-value products and to screen for those converting putrescine. IMPORTANCE Amine transaminases of the class III ω-TAs are key enzymes for modification of chemical building blocks, but finding those capable of converting bulky ketones and (R) amines is still challenging. Here, by an extensive analysis of the substrate spectra of 10 class III ω-TAs, we identified a number of residues playing a role in determining the access and positioning of bulky ketones, bulky amines, and (R)- and (S) amines, as well as of environmentally relevant polyamines, particularly putrescine. The results presented can significantly expand future opportunities for designing (R)-specific class III ω-TAs to convert valuable bulky ketones and amines, as well as for deepening the knowledge into the polyamine catabolic pathways.
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30
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Telzerow A, Paris J, Håkansson M, González-Sabín J, Ríos-Lombardía N, Schürmann M, Gröger H, Morís F, Kourist R, Schwab H, Steiner K. Amine Transaminase from Exophiala Xenobiotica—Crystal Structure and Engineering of a Fold IV Transaminase that Naturally Converts Biaryl Ketones. ACS Catal 2018. [DOI: 10.1021/acscatal.8b04524] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Aline Telzerow
- Institute of Molecular Biotechnology, Graz University of Technology, Petersgasse 14, 8010 Graz, Austria
- InnoSyn B. V., Urmonderbaan 22, 6167RD Geleen, The Netherlands
| | - Juraj Paris
- Chair of Organic Chemistry I, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
- Entrechem, S.L., Vivero Ciencias de la Salud, Santo Domingo de Guzmán,
s/n, 33011 Oviedo, Spain
| | - Maria Håkansson
- SARomics Biostructures AB, Medicon Village, Scheelevägen 2, 22381 Lund, Sweden
| | - Javier González-Sabín
- Entrechem, S.L., Vivero Ciencias de la Salud, Santo Domingo de Guzmán,
s/n, 33011 Oviedo, Spain
| | - Nicolás Ríos-Lombardía
- Entrechem, S.L., Vivero Ciencias de la Salud, Santo Domingo de Guzmán,
s/n, 33011 Oviedo, Spain
| | | | - Harald Gröger
- Chair of Organic Chemistry I, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Francisco Morís
- Entrechem, S.L., Vivero Ciencias de la Salud, Santo Domingo de Guzmán,
s/n, 33011 Oviedo, Spain
| | - Robert Kourist
- Institute of Molecular Biotechnology, Graz University of Technology, Petersgasse 14, 8010 Graz, Austria
| | - Helmut Schwab
- Institute of Molecular Biotechnology, Graz University of Technology, Petersgasse 14, 8010 Graz, Austria
| | - Kerstin Steiner
- Institute of Molecular Biotechnology, Graz University of Technology, Petersgasse 14, 8010 Graz, Austria
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31
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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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Dawood AWH, Bassut J, de Souza ROMA, Bornscheuer UT. Combination of the Suzuki-Miyaura Cross-Coupling Reaction with Engineered Transaminases. Chemistry 2018; 24:16009-16013. [DOI: 10.1002/chem.201804366] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Ayad W. H. Dawood
- Dept. of Biotechnology & Enzyme Catalysis; Institute of Biochemistry, Greifswald University; Felix-Hausdorff-Str. 4 17487 Greifswald Germany
| | - Jonathan Bassut
- Biocatalysis and Organic Synthesis Group; Institute of Chemistry; Federal University of; Rio de Janeiro Brazil
| | - Rodrigo O. M. A. de Souza
- Biocatalysis and Organic Synthesis Group; Institute of Chemistry; Federal University of; Rio de Janeiro Brazil
| | - Uwe T. Bornscheuer
- Dept. of Biotechnology & Enzyme Catalysis; Institute of Biochemistry, Greifswald University; Felix-Hausdorff-Str. 4 17487 Greifswald Germany
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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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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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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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Buß O, Buchholz PCF, Gräff M, Klausmann P, Rudat J, Pleiss J. The ω-transaminase engineering database (oTAED): A navigation tool in protein sequence and structure space. Proteins 2018; 86:566-580. [PMID: 29423963 DOI: 10.1002/prot.25477] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 02/03/2018] [Accepted: 02/06/2018] [Indexed: 01/02/2023]
Abstract
The ω-Transaminase Engineering Database (oTAED) was established as a publicly accessible resource on sequences and structures of the biotechnologically relevant ω-transaminases (ω-TAs) from Fold types I and IV. The oTAED integrates sequence and structure data, provides a classification based on fold type and sequence similarity, and applies a standard numbering scheme to identify equivalent positions in homologous proteins. The oTAED includes 67 210 proteins (114 655 sequences) which are divided into 169 homologous families based on global sequence similarity. The 44 and 39 highly conserved positions which were identified in Fold type I and IV, respectively, include the known catalytic residues and a large fraction of glycines and prolines in loop regions, which might have a role in protein folding and stability. However, for most of the conserved positions the function is still unknown. Literature information on positions that mediate substrate specificity and stereoselectivity was systematically examined. The standard numbering schemes revealed that many positions which have been described in different enzymes are structurally equivalent. For some positions, multiple functional roles have been suggested based on experimental data in different enzymes. The proposed standard numbering schemes for Fold type I and IV ω-TAs assist with analysis of literature data, facilitate annotation of ω-TAs, support prediction of promising mutation sites, and enable navigation in ω-TA sequence space. Thus, it is a useful tool for enzyme engineering and the selection of novel ω-TA candidates with desired biochemical properties.
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Affiliation(s)
- Oliver Buß
- Institute of Process Engineering in Life Sciences, Karlsruhe Institute of Technology, Engler-Bunte-Ring 3, Karlsruhe, 76131, Germany
| | - Patrick C F Buchholz
- Institute of Biochemistry and Technical Biochemistry, University of Stuttgart, Allmandring 31, Stuttgart, 70569, Germany
| | - Maike Gräff
- Institute of Biochemistry and Technical Biochemistry, University of Stuttgart, Allmandring 31, Stuttgart, 70569, Germany
| | - Peter Klausmann
- Institute of Process Engineering in Life Sciences, Karlsruhe Institute of Technology, Engler-Bunte-Ring 3, Karlsruhe, 76131, Germany
| | - Jens Rudat
- Institute of Process Engineering in Life Sciences, Karlsruhe Institute of Technology, Engler-Bunte-Ring 3, Karlsruhe, 76131, Germany
| | - Jürgen Pleiss
- Institute of Biochemistry and Technical Biochemistry, University of Stuttgart, Allmandring 31, Stuttgart, 70569, Germany
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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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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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Gao S, Su Y, Zhao L, Li G, Zheng G. Characterization of a (R)-selective amine transaminase from Fusarium oxysporum. Process Biochem 2017. [DOI: 10.1016/j.procbio.2017.08.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Han SW, Kim J, Cho HS, Shin JS. Active Site Engineering of ω-Transaminase Guided by Docking Orientation Analysis and Virtual Activity Screening. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03242] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sang-Woo Han
- Department
of Biotechnology and ‡Department of Systems Biology, Yonsei University, Yonsei-Ro 50, Seodaemun-Gu, Seoul 03722, South Korea
| | - Juyeon Kim
- Department
of Biotechnology and ‡Department of Systems Biology, Yonsei University, Yonsei-Ro 50, Seodaemun-Gu, Seoul 03722, South Korea
| | - Hyun-Soo Cho
- Department
of Biotechnology and ‡Department of Systems Biology, Yonsei University, Yonsei-Ro 50, Seodaemun-Gu, Seoul 03722, South Korea
| | - Jong-Shik Shin
- Department
of Biotechnology and ‡Department of Systems Biology, Yonsei University, Yonsei-Ro 50, Seodaemun-Gu, Seoul 03722, South Korea
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41
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A facile method to determine intrinsic kinetic parameters of ω-transaminase displaying substrate inhibition. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2017.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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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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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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45
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Active-Site Engineering of ω-Transaminase for Production of Unnatural Amino Acids Carrying a Side Chain Bulkier than an Ethyl Substituent. Appl Environ Microbiol 2015; 81:6994-7002. [PMID: 26231640 DOI: 10.1128/aem.01533-15] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 07/23/2015] [Indexed: 12/26/2022] Open
Abstract
ω-Transaminase (ω-TA) is a promising enzyme for use in the production of unnatural amino acids from keto acids using cheap amino donors such as isopropylamine. The small substrate-binding pocket of most ω-TAs permits entry of substituents no larger than an ethyl group, which presents a significant challenge to the preparation of structurally diverse unnatural amino acids. Here we report on the engineering of an (S)-selective ω-TA from Ochrobactrum anthropi (OATA) to reduce the steric constraint and thereby allow the small pocket to readily accept bulky substituents. On the basis of a docking model in which L-alanine was used as a ligand, nine active-site residues were selected for alanine scanning mutagenesis. Among the resulting variants, an L57A variant showed dramatic activity improvements in activity for α-keto acids and α-amino acids carrying substituents whose bulk is up to that of an n-butyl substituent (e.g., 48- and 56-fold increases in activity for 2-oxopentanoic acid and L-norvaline, respectively). An L57G mutation also relieved the steric constraint but did so much less than the L57A mutation did. In contrast, an L57V substitution failed to induce the improvements in activity for bulky substrates. Molecular modeling suggested that the alanine substitution of L57, located in a large pocket, induces an altered binding orientation of an α-carboxyl group and thereby provides more room to the small pocket. The synthetic utility of the L57A variant was demonstrated by carrying out the production of optically pure L- and D-norvaline (i.e., enantiomeric excess [ee]>99%) by asymmetric amination of 2-oxopantanoic acid and kinetic resolution of racemic norvaline, respectively.
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