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Feng T, Wang Z, Li H, Li Q, Guo Y, Zhao J, Liu J. Whole-cell biotransformation for simultaneous synthesis of allitol and d-gluconic acid in recombinant Escherichia coli. J Biosci Bioeng 2023; 135:433-439. [DOI: 10.1016/j.jbiosc.2023.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/23/2023] [Accepted: 03/07/2023] [Indexed: 04/03/2023]
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2
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Simić S, Zukić E, Schmermund L, Faber K, Winkler CK, Kroutil W. Shortening Synthetic Routes to Small Molecule Active Pharmaceutical Ingredients Employing Biocatalytic Methods. Chem Rev 2021; 122:1052-1126. [PMID: 34846124 DOI: 10.1021/acs.chemrev.1c00574] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Biocatalysis, using enzymes for organic synthesis, has emerged as powerful tool for the synthesis of active pharmaceutical ingredients (APIs). The first industrial biocatalytic processes launched in the first half of the last century exploited whole-cell microorganisms where the specific enzyme at work was not known. In the meantime, novel molecular biology methods, such as efficient gene sequencing and synthesis, triggered breakthroughs in directed evolution for the rapid development of process-stable enzymes with broad substrate scope and good selectivities tailored for specific substrates. To date, enzymes are employed to enable shorter, more efficient, and more sustainable alternative routes toward (established) small molecule APIs, and are additionally used to perform standard reactions in API synthesis more efficiently. Herein, large-scale synthetic routes containing biocatalytic key steps toward >130 APIs of approved drugs and drug candidates are compared with the corresponding chemical protocols (if available) regarding the steps, reaction conditions, and scale. The review is structured according to the functional group formed in the reaction.
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Affiliation(s)
- Stefan Simić
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstraße 28, 8010 Graz, Austria
| | - Erna Zukić
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstraße 28, 8010 Graz, Austria
| | - Luca Schmermund
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstraße 28, 8010 Graz, Austria
| | - Kurt Faber
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstraße 28, 8010 Graz, Austria
| | - Christoph K Winkler
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstraße 28, 8010 Graz, Austria
| | - Wolfgang Kroutil
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstraße 28, 8010 Graz, Austria.,Field of Excellence BioHealth─University of Graz, 8010 Graz, Austria.,BioTechMed Graz, 8010 Graz, Austria
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3
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Malla S, Gummadi SN. Simultaneous Optimization of Activity and Stability of Xylose Reductase from D. nepalensis NCYC 3413 Using Statistical Experimental Design. Protein Pept Lett 2021; 28:489-500. [PMID: 33143604 DOI: 10.2174/0929866527666201103145246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/12/2020] [Accepted: 09/15/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Physical parameters like pH and temperature play a major role in the design of an industrial enzymatic process. Enzyme stability and activity are greatly influenced by these parameters; hence optimization and control of these parameters becomes a key point in determining the economic feasibility of the process. OBJECTIVE This study was taken up with the objective to optimize physical parameters for maximum stability and activity of xylose reductase from D. nepalensis NCYC 3413 through separate and simultaneous optimization studies and comparison thereof. METHODS Effects of pH and temperature on the activity and stability of xylose reductase from Debaryomyces nepalensis NCYC 3413 were investigated by enzyme assays and independent variables were optimised using surface response methodology. Enzyme activity and stability were optimised separately and concurrently to decipher the appropriate conditions. RESULTS Optimized conditions of pH and temperature for xylose reductase activity were determined to be 7.1 and 27 °C respectively, with predicted responses of specific activity (72.3 U/mg) and half-life time (566 min). The experimental values (specific activity 50.2 U/mg, half-life time 818 min) were on par with predicted values indicating the significance of the model. CONCLUSION Simultaneous optimization of xylose reductase activity and stability using statistical methods is effective as compared to optimisation of the parameters separately.
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Affiliation(s)
- Shwethashree Malla
- Applied and Industrial Microbiology Laboratory, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Sathyanarayana N Gummadi
- Applied and Industrial Microbiology Laboratory, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600 036, India
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Shen L, Cang R, Yang G, Zeng A, Huang H, Zhang Z. Aureobasidium subglaciale F134 is a bifunctional whole-cell biocatalyst for Baeyer–Villiger oxidation or selective carbonyl reduction controllable by temperature. Chin J Chem Eng 2020. [DOI: 10.1016/j.cjche.2020.06.041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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5
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Hu C, Liu M, Yue X, Huang Z, Chen F. Development of a Practical, Biocatalytic Synthesis of tert-Butyl (R)-3-Hydroxyl-5-hexenoate: A Key Intermediate to the Statin Side Chain. Org Process Res Dev 2020. [DOI: 10.1021/acs.oprd.0c00320] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Chen Hu
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, P. R. China
- Shanghai Engineering Research Center of Industrial Asymmetric Catalysis of Chiral Drugs, 220 Handan Road, Shanghai 200433, P. R. China
| | - Minjie Liu
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, P. R. China
- Shanghai Engineering Research Center of Industrial Asymmetric Catalysis of Chiral Drugs, 220 Handan Road, Shanghai 200433, P. R. China
| | - Xiaoping Yue
- West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China
| | - Zedu Huang
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, P. R. China
- Shanghai Engineering Research Center of Industrial Asymmetric Catalysis of Chiral Drugs, 220 Handan Road, Shanghai 200433, P. R. China
| | - Fener Chen
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, P. R. China
- Shanghai Engineering Research Center of Industrial Asymmetric Catalysis of Chiral Drugs, 220 Handan Road, Shanghai 200433, P. R. China
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6
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Counteraction of osmolytes on pH-induced unfolding of xylose reductase from Debaryomyces nepalensis NCYC 3413. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2020; 49:267-277. [PMID: 32356119 DOI: 10.1007/s00249-020-01432-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 04/03/2020] [Accepted: 04/20/2020] [Indexed: 10/24/2022]
Abstract
The stability of Debaryomyces nepalensis NCYC 3413 xylose reductase, a homodimeric enzyme recombinantly expressed and purified from E. coli Rosetta cells, was studied at different pH ranging from 5.0 to 10.0. Deactivation kinetics at different pH were studied by analyzing residual activity of the recombinant enzyme over time at 40 °C whereas conformational changes and stability dependence were investigated by using circular dichroism and differential scanning calorimetry. Four osmolytes viz. glycerol, sucrose, trehalose and sorbitol were explored for their effect on the deactivation and melting temperatures of the enzyme under neutral and extreme pH conditions. The enzyme was found to be catalytically and structurally stable at pH 7.0 with half-life of 250 min and a melting temperature of 50 °C. It was found that alteration in both secondary and tertiary structures caused enzyme deactivation in acidic pH while increased deactivation rates at alkaline pH was attributed to the variation of tertiary structure over time. Estimated thermodynamic parameters also showed that the enzyme stability was highest at neutral pH with ΔH of 348 kcal/mole and ΔG40 of 9.53 kcal/mole. All four osmolytes were effective in enhancing enzyme stability by several folds at extreme pH with sorbitol being the most efficient, which increased enzyme half-life by 11-fold at pH 10.0 and 8-fold at pH 5.0.
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7
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Synthesizing Chiral Drug Intermediates by Biocatalysis. Appl Biochem Biotechnol 2020; 192:146-179. [DOI: 10.1007/s12010-020-03272-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 02/13/2020] [Indexed: 01/16/2023]
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8
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Rao J, Zhang R, Xu G, Li L, Xu Y. Efficient production of (S)-1-phenyl-1,2-ethanediol using xylan as co-substrate by a coupled multi-enzyme Escherichia coli system. Microb Cell Fact 2020; 19:87. [PMID: 32264866 PMCID: PMC7137420 DOI: 10.1186/s12934-020-01344-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 03/28/2020] [Indexed: 12/04/2022] Open
Abstract
Background (S)-1-phenyl-1,2-ethanediol is an important chiral intermediate in the synthesis of liquid crystals and chiral biphosphines. (S)-carbonyl reductase II from Candida parapsilosis catalyzes the conversion of 2-hydroxyacetophenone to (S)-1-phenyl-1,2-ethanediol with NADPH as a cofactor. Glucose dehydrogenase with a Ala258Phe mutation is able to catalyze the oxidation of xylose with concomitant reduction of NADP+ to NADPH, while endo-β-1,4-xylanase 2 catalyzes the conversion of xylan to xylose. In the present work, the Ala258Phe glucose dehydrogenase mutant and endo-β-1,4-xylanase 2 were introduced into the (S)-carbonyl reductase II-mediated chiral pathway to strengthen cofactor regeneration by using xylan as a naturally abundant co-substrate. Results We constructed several coupled multi-enzyme systems by introducing (S)-carbonyl reductase II, the A258F glucose dehydrogenase mutant and endo-β-1,4-xylanase 2 into Escherichia coli. Different strains were produced by altering the location of the encoding genes on the plasmid. Only recombinant E. coli/pET-G-S-2 expressed all three enzymes, and this strain produced (S)-1-phenyl-1,2-ethanediol from 2-hydroxyacetophenone as a substrate and xylan as a co-substrate. The optical purity was 100% and the yield was 98.3% (6 g/L 2-HAP) under optimal conditions of 35 °C, pH 6.5 and a 2:1 substrate-co-substrate ratio. The introduction of A258F glucose dehydrogenase and endo-β-1,4-xylanase 2 into the (S)-carbonyl reductase II-mediated chiral pathway caused a 54.6% increase in yield, and simultaneously reduced the reaction time from 48 to 28 h. Conclusions This study demonstrates efficient chiral synthesis using a pentose as a co-substrate to enhance cofactor regeneration. This provides a new approach for enantiomeric catalysis through the inclusion of naturally abundant materials.
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Affiliation(s)
- Junchao Rao
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Rongzhen Zhang
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, 214122, People's Republic of China. .,School of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, China.
| | - Guanyu Xu
- Xuteli School, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Lihong Li
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Yan Xu
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, 214122, People's Republic of China
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Zheng GW, Liu YY, Chen Q, Huang L, Yu HL, Lou WY, Li CX, Bai YP, Li AT, Xu JH. Preparation of Structurally Diverse Chiral Alcohols by Engineering Ketoreductase CgKR1. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01933] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Gao-Wei Zheng
- State
Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation
Center for Biomanufacturing, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yuan-Yang Liu
- State
Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation
Center for Biomanufacturing, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Qi Chen
- State
Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation
Center for Biomanufacturing, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Lei Huang
- State
Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation
Center for Biomanufacturing, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Hui-Lei Yu
- State
Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation
Center for Biomanufacturing, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wen-Yong Lou
- Lab
of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Chun-Xiu Li
- State
Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation
Center for Biomanufacturing, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yun-Peng Bai
- State
Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation
Center for Biomanufacturing, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Ai-Tao Li
- Department
of Biocatalysis, Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz
1, Mülheim an der Ruhr 45470, Germany
| | - Jian-He Xu
- State
Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation
Center for Biomanufacturing, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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11
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Zhao FJ, Liu Y, Pei XQ, Guo C, Wu ZL. Single mutations of ketoreductase ChKRED20 enhance the bioreductive production of (1S)-2-chloro-1-(3, 4-difluorophenyl) ethanol. Appl Microbiol Biotechnol 2016; 101:1945-1952. [PMID: 27830294 DOI: 10.1007/s00253-016-7947-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 10/07/2016] [Accepted: 10/18/2016] [Indexed: 11/28/2022]
Abstract
(1S)-2-chloro-1-(3, 4-difluorophenyl) ethanol ((S)-CFPL) is an intermediate for the drug ticagrelor, and is manufactured via chemical approaches. To develop a biocatalytic solution to (S)-CFPL, an inventory of ketoreductases from Chryseobacterium sp. CA49 were rescreened, and ChKRED20 was found to catalyze the reduction of the ketone precursor with excellent stereoselectivity (>99 % ee). After screening an error-prone PCR library of the wild-type ChKRED20, two mutants, each bearing a single amino acid substitution of H145L or L205M, were identified with significantly increased activity. Then, the two critical positions were each randomized by constructing saturation mutagenesis libraries, which delivered several mutants with further enhanced activity. Among them, the mutant L205A was the best performer with a specific activity of 178 μmol/min/mg, ten times of that of the wild-type. Its k cat/K m increased by 15 times and half-life at 50 °C increased by 70 %. The mutant catalyzed the complete conversion of 150 and 200 g/l substrate within 6 and 20 h, respectively, to yield enantiopure (S)-CFPL with an isolated yield of 95 %.
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Affiliation(s)
- Feng-Jiao Zhao
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.,Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu, 610041, China.,Graduate University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Yan Liu
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.,Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu, 610041, China.,Graduate University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao-Qiong Pei
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.,Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu, 610041, China.,Graduate University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Chao Guo
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.,Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu, 610041, China.,Graduate University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhong-Liu Wu
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China. .,Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu, 610041, China.
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12
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Xu GP, Wang HB, Wu ZL. Efficient bioreductive production of (S)-N-Boc-3-hydroxypiperidine using ketoreductase ChKRED03. Process Biochem 2016. [DOI: 10.1016/j.procbio.2016.04.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Rapid asymmetric reduction of ethyl 4-chloro-3-oxobutanoate using a thermostabilized mutant of ketoreductase ChKRED20. Appl Microbiol Biotechnol 2015; 100:3567-75. [DOI: 10.1007/s00253-015-7200-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 11/19/2015] [Accepted: 11/24/2015] [Indexed: 11/25/2022]
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14
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Zhou X, Zhang R, Xu Y, Liang H, Jiang J, Xiao R. Coupled (R)-carbonyl reductase and glucose dehydrogenase catalyzes (R)-1-phenyl-1,2-ethanediol biosynthesis with excellent stereochemical selectivity. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.08.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Loderer C, Morgenstern F, Ansorge-Schumacher M. A Zinc-Dependent Alcohol Dehydrogenase (ADH) from Thauera aromatica, Reducing Cyclic α- and β-Diketones. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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16
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Ren ZQ, Liu Y, Pei XQ, Wang HB, Wu ZL. Bioreductive production of enantiopure (S)-duloxetine intermediates catalyzed with ketoreductase ChKRED15. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcatb.2015.01.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Teleha CA, Branum S, Zhang Y, Reuman ME, Van Der Steen L, Verbeek M, Fawzy N, Leo GC, Kang FA, Cai C, Kolpak M, Beauchamp DA, Wall MJ, Russell RK, Sui Z, Vanbaelen H. Lab-Scale Preparation of a Novel Carbocyclic Chemokine Receptor Antagonist. Org Process Res Dev 2014. [DOI: 10.1021/op500265z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | - Luc Van Der Steen
- Preparative
Separation Techniques, API Small, Janssen Research and Development, 30 Turnhoutseweg, Beerse, B-2340, Belgium
| | - Marc Verbeek
- Preparative
Separation Techniques, API Small, Janssen Research and Development, 30 Turnhoutseweg, Beerse, B-2340, Belgium
| | | | | | | | | | | | | | | | | | | | - Hilde Vanbaelen
- Preparative
Separation Techniques, API Small, Janssen Research and Development, 30 Turnhoutseweg, Beerse, B-2340, Belgium
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Teleha CA, Branum S, Zhang Y, Reuman ME, Van Der Steen L, Verbeek M, Fawzy N, Leo GC, Winters MP, Kang FA, Kolpak M, Beauchamp DA, Lanter JC, Russell RK, Sui Z, Vanbaelen H. Lab-Scale Preparation of a Novel Cyclopenta[b]furan Chemokine Receptor Antagonist. Org Process Res Dev 2014. [DOI: 10.1021/op500266w] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | | | - Luc Van Der Steen
- Preparative
Separation Techniques, API Small, Janssen Research and Development, 30 Turnhoutseweg, Beerse, B-2340, Belgium
| | - Marc Verbeek
- Preparative
Separation Techniques, API Small, Janssen Research and Development, 30 Turnhoutseweg, Beerse, B-2340, Belgium
| | | | | | | | | | | | | | | | | | | | - Hilde Vanbaelen
- Preparative
Separation Techniques, API Small, Janssen Research and Development, 30 Turnhoutseweg, Beerse, B-2340, Belgium
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Tang TX, Liu Y, Wu ZL. Characterization of a robust anti-Prelog short-chain dehydrogenase/reductase ChKRED20 from Chryseobacterium sp. CA49. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2014.03.020] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Pan J, Zheng GW, Ye Q, Xu JH. Optimization and Scale-up of a Bioreduction Process for Preparation of Ethyl (S)-4-Chloro-3-hydroxybutanoate. Org Process Res Dev 2014. [DOI: 10.1021/op500088w] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiang Pan
- Laboratory of Biocatalysis
and Synthetic Biotechnology, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Gao-Wei Zheng
- Laboratory of Biocatalysis
and Synthetic Biotechnology, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Qin Ye
- Laboratory of Biocatalysis
and Synthetic Biotechnology, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Jian-He Xu
- Laboratory of Biocatalysis
and Synthetic Biotechnology, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
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21
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Solha DC, Barbosa TM, Viesser RV, Rittner R, Tormena CF. Experimental and Theoretical Studies of Intramolecular Hydrogen Bonding in 3-Hydroxytetrahydropyran: Beyond AIM Analysis. J Phys Chem A 2014; 118:2794-800. [DOI: 10.1021/jp500211y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Daniela C. Solha
- Chemistry Institute, University of Campinas - UNICAMP, P.O. Box 6154, 13083-970 Campinas, SP, Brazil
| | - Thaís M. Barbosa
- Chemistry Institute, University of Campinas - UNICAMP, P.O. Box 6154, 13083-970 Campinas, SP, Brazil
| | - Renan V. Viesser
- Chemistry Institute, University of Campinas - UNICAMP, P.O. Box 6154, 13083-970 Campinas, SP, Brazil
| | - Roberto Rittner
- Chemistry Institute, University of Campinas - UNICAMP, P.O. Box 6154, 13083-970 Campinas, SP, Brazil
| | - Cláudio F. Tormena
- Chemistry Institute, University of Campinas - UNICAMP, P.O. Box 6154, 13083-970 Campinas, SP, Brazil
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22
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Liu Y, Tang TX, Pei XQ, Zhang C, Wu ZL. Identification of ketone reductase ChKRED20 from the genome of Chryseobacterium sp. CA49 for highly efficient anti-Prelog reduction of 3,5-bis(trifluoromethyl)acetophenone. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2014.01.009] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Yıldız T, Çanta N, Yusufoğlu A. Synthesis of new chiral keto alcohols by baker’s yeast. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2014.01.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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Zhang R, Zhang B, Xu Y, Li Y, Li M, Liang H, Xiao R. Efficicent (R)-phenylethanol production with enantioselectivity-alerted (S)-carbonyl reductase II and NADPH regeneration. PLoS One 2013; 8:e83586. [PMID: 24358299 PMCID: PMC3866161 DOI: 10.1371/journal.pone.0083586] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Accepted: 11/13/2013] [Indexed: 11/19/2022] Open
Abstract
The NADPH-dependent (S)-carbonyl reductaseII from Candida parapsilosis catalyzes acetophenone to chiral phenylethanol in a very low yield of 3.2%. Site-directed mutagenesis was used to design two mutants Ala220Asp and Glu228Ser, inside or adjacent to the substrate-binding pocket. Both mutations caused a significant enantioselectivity shift toward (R)-phenylethanol in the reduction of acetophenone. The variant E228S produced (R)-phenylethanol with an optical purity above 99%, in 80.2% yield. The E228S mutation resulted in a 4.6-fold decrease in the K M value, but nearly 5-fold and 21-fold increases in the k cat and k cat/K M values with respect to the wild type. For NADPH regeneration, Bacillus sp. YX-1 glucose dehydrogenase was introduced into the (R)-phenylethanol pathway. A coexpression system containing E228S and glucose dehydrogenase was constructed. The system was optimized by altering the coding gene order on the plasmid and using the Shine-Dalgarno sequence and the aligned spacing sequence as a linker between them. The presence of glucose dehydrogenase increased the NADPH concentration slightly and decreased NADP(+) pool 2- to 4-fold; the NADPH/NADP(+) ratio was improved 2- to 5-fold. The recombinant Escherichia coli/pET-MS-SD-AS-G, with E228S located upstream and glucose dehydrogenase downstream, showed excellent performance, giving (R)-phenylethanol of an optical purity of 99.5 % in 92.2% yield in 12 h in the absence of an external cofactor. When 0.06 mM NADP(+) was added at the beginning of the reaction, the reaction duration was reduced to 1 h. Optimization of the coexpression system stimulated an over 30-fold increase in the yield of (R)-phenylethanol, and simultaneously reduced the reaction time 48-fold compared with the wild-type enzyme. This report describes possible mechanisms for alteration of the enantiopreferences of carbonyl reductases by site mutation, and cofactor rebalancing pathways for efficient chiral alcohols production.
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Affiliation(s)
- Rongzhen Zhang
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, P. R. China
- National Key Laboratory for Food Science, Jiangnan University, Wuxi, P. R. China
| | - Botao Zhang
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, P. R. China
- Tianjin Institute of Industrial Biotechnology, The Chinese Academy of Sciences, Tianjin, P. R. China
| | - Yan Xu
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, P. R. China
- National Key Laboratory for Food Science, Jiangnan University, Wuxi, P. R. China
| | - Yaohui Li
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, P. R. China
- National Key Laboratory for Food Science, Jiangnan University, Wuxi, P. R. China
| | - Ming Li
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, P. R. China
- National Key Laboratory for Food Science, Jiangnan University, Wuxi, P. R. China
| | - Hongbo Liang
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, P. R. China
- National Key Laboratory for Food Science, Jiangnan University, Wuxi, P. R. China
| | - Rong Xiao
- Center for Advanced Biotechnology and Medicine, Rutgers University, Piscataway, New Jersey, United States of America
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25
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Hilpert H, Mauser H, Humm R, Anselm L, Kuehne H, Hartmann G, Gruener S, Banner DW, Benz J, Gsell B, Kuglstatter A, Stihle M, Thoma R, Sanchez RA, Iding H, Wirz B, Haap W. Identification of Potent and Selective Cathepsin S Inhibitors Containing Different Central Cyclic Scaffolds. J Med Chem 2013; 56:9789-801. [DOI: 10.1021/jm401528k] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Hans Hilpert
- Discovery Chemistry, ‡Cardiovascular and
Metabolic Diseases, §Discovery Technologies, ∥Drug Metabolism
and Pharmacokinetics, ⊥Process Research and Synthesis, Pharma Research and Early Development (pRED), F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel CH-4070, Switzerland
| | - Harald Mauser
- Discovery Chemistry, ‡Cardiovascular and
Metabolic Diseases, §Discovery Technologies, ∥Drug Metabolism
and Pharmacokinetics, ⊥Process Research and Synthesis, Pharma Research and Early Development (pRED), F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel CH-4070, Switzerland
| | - Roland Humm
- Discovery Chemistry, ‡Cardiovascular and
Metabolic Diseases, §Discovery Technologies, ∥Drug Metabolism
and Pharmacokinetics, ⊥Process Research and Synthesis, Pharma Research and Early Development (pRED), F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel CH-4070, Switzerland
| | - Lilli Anselm
- Discovery Chemistry, ‡Cardiovascular and
Metabolic Diseases, §Discovery Technologies, ∥Drug Metabolism
and Pharmacokinetics, ⊥Process Research and Synthesis, Pharma Research and Early Development (pRED), F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel CH-4070, Switzerland
| | - Holger Kuehne
- Discovery Chemistry, ‡Cardiovascular and
Metabolic Diseases, §Discovery Technologies, ∥Drug Metabolism
and Pharmacokinetics, ⊥Process Research and Synthesis, Pharma Research and Early Development (pRED), F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel CH-4070, Switzerland
| | - Guido Hartmann
- Discovery Chemistry, ‡Cardiovascular and
Metabolic Diseases, §Discovery Technologies, ∥Drug Metabolism
and Pharmacokinetics, ⊥Process Research and Synthesis, Pharma Research and Early Development (pRED), F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel CH-4070, Switzerland
| | - Sabine Gruener
- Discovery Chemistry, ‡Cardiovascular and
Metabolic Diseases, §Discovery Technologies, ∥Drug Metabolism
and Pharmacokinetics, ⊥Process Research and Synthesis, Pharma Research and Early Development (pRED), F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel CH-4070, Switzerland
| | - David W. Banner
- Discovery Chemistry, ‡Cardiovascular and
Metabolic Diseases, §Discovery Technologies, ∥Drug Metabolism
and Pharmacokinetics, ⊥Process Research and Synthesis, Pharma Research and Early Development (pRED), F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel CH-4070, Switzerland
| | - Joerg Benz
- Discovery Chemistry, ‡Cardiovascular and
Metabolic Diseases, §Discovery Technologies, ∥Drug Metabolism
and Pharmacokinetics, ⊥Process Research and Synthesis, Pharma Research and Early Development (pRED), F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel CH-4070, Switzerland
| | - Bernard Gsell
- Discovery Chemistry, ‡Cardiovascular and
Metabolic Diseases, §Discovery Technologies, ∥Drug Metabolism
and Pharmacokinetics, ⊥Process Research and Synthesis, Pharma Research and Early Development (pRED), F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel CH-4070, Switzerland
| | - Andreas Kuglstatter
- Discovery Chemistry, ‡Cardiovascular and
Metabolic Diseases, §Discovery Technologies, ∥Drug Metabolism
and Pharmacokinetics, ⊥Process Research and Synthesis, Pharma Research and Early Development (pRED), F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel CH-4070, Switzerland
| | - Martine Stihle
- Discovery Chemistry, ‡Cardiovascular and
Metabolic Diseases, §Discovery Technologies, ∥Drug Metabolism
and Pharmacokinetics, ⊥Process Research and Synthesis, Pharma Research and Early Development (pRED), F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel CH-4070, Switzerland
| | - Ralf Thoma
- Discovery Chemistry, ‡Cardiovascular and
Metabolic Diseases, §Discovery Technologies, ∥Drug Metabolism
and Pharmacokinetics, ⊥Process Research and Synthesis, Pharma Research and Early Development (pRED), F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel CH-4070, Switzerland
| | - Rubén Alvarez Sanchez
- Discovery Chemistry, ‡Cardiovascular and
Metabolic Diseases, §Discovery Technologies, ∥Drug Metabolism
and Pharmacokinetics, ⊥Process Research and Synthesis, Pharma Research and Early Development (pRED), F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel CH-4070, Switzerland
| | - Hans Iding
- Discovery Chemistry, ‡Cardiovascular and
Metabolic Diseases, §Discovery Technologies, ∥Drug Metabolism
and Pharmacokinetics, ⊥Process Research and Synthesis, Pharma Research and Early Development (pRED), F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel CH-4070, Switzerland
| | - Beat Wirz
- Discovery Chemistry, ‡Cardiovascular and
Metabolic Diseases, §Discovery Technologies, ∥Drug Metabolism
and Pharmacokinetics, ⊥Process Research and Synthesis, Pharma Research and Early Development (pRED), F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel CH-4070, Switzerland
| | - Wolfgang Haap
- Discovery Chemistry, ‡Cardiovascular and
Metabolic Diseases, §Discovery Technologies, ∥Drug Metabolism
and Pharmacokinetics, ⊥Process Research and Synthesis, Pharma Research and Early Development (pRED), F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel CH-4070, Switzerland
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26
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Rowan AS, Moody TS, Howard RM, Underwood TJ, Miskelly IR, He Y, Wang B. Preparative access to medicinal chemistry related chiral alcohols using carbonyl reductase technology. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.09.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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27
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Muñoz Solano D, Hoyos P, Hernáiz MJ, Alcántara AR, Sánchez-Montero JM. Industrial biotransformations in the synthesis of building blocks leading to enantiopure drugs. BIORESOURCE TECHNOLOGY 2012; 115:196-207. [PMID: 22230779 DOI: 10.1016/j.biortech.2011.11.131] [Citation(s) in RCA: 126] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Revised: 11/26/2011] [Accepted: 11/29/2011] [Indexed: 05/11/2023]
Abstract
Due to the growing demand of enantiomerically pure compounds, as well as the increasing strict safety, quality and environmentally requirements of industrial synthetic processes, the development of more sustainable, healthy and economically attractive strategies for the synthesis of chiral biologically active molecules is still an open challenge in the pharmaceutical industry. In this context, the biotransformations field has emerged as a real alternative to traditional synthetic routes, because of the exquisite chemo-, regio- and enantioselectivities commonly displayed by enzymes; thus, biocatalysis is becoming a widespread methodology for the synthesis of chiral compounds, not only at laboratory scale, but also at industrial scale. As hydrolases and oxido-reductases are the most employed enzymes, this review is focused on describing several industrial processes based on the use of these enzymes for obtaining chiral compounds useful for the pharmaceutical industry.
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Affiliation(s)
- D Muñoz Solano
- Department of Organic and Pharmaceutical Chemistry, Faculty of Pharmacy, Complutense University, Madrid, Spain
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28
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Calvin SJ, Mangan D, Miskelly I, Moody TS, Stevenson PJ. Overcoming Equilibrium Issues with Carbonyl Reductase Enzymes. Org Process Res Dev 2011. [DOI: 10.1021/op200241u] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Susan J. Calvin
- School of Chemistry and Chemical Engineering, Queen’s University Belfast, David Keir Building, Stranmillis Road, Belfast, Northern Ireland BT95AG
| | - David Mangan
- Almac, Biocatalysis Group, David Keir Building, Stranmillis Road, Belfast, Northern Ireland BT95AG
| | - Iain Miskelly
- Almac, Biocatalysis Group, David Keir Building, Stranmillis Road, Belfast, Northern Ireland BT95AG
| | - Thomas S. Moody
- Almac, Biocatalysis Group, David Keir Building, Stranmillis Road, Belfast, Northern Ireland BT95AG
| | - Paul J. Stevenson
- School of Chemistry and Chemical Engineering, Queen’s University Belfast, David Keir Building, Stranmillis Road, Belfast, Northern Ireland BT95AG
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29
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Brown G, Mangan D, Miskelly I, Moody TS. A Facile Stereoselective Biocatalytic Route to the Precursor of Woody Acetate. Org Process Res Dev 2011. [DOI: 10.1021/op200166a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gareth Brown
- Biocatalysis Group, Almac, David Keir Building, Stranmillis Road, Belfast BT9 5AG, Northern Ireland
| | - David Mangan
- Biocatalysis Group, Almac, David Keir Building, Stranmillis Road, Belfast BT9 5AG, Northern Ireland
| | - Iain Miskelly
- Biocatalysis Group, Almac, David Keir Building, Stranmillis Road, Belfast BT9 5AG, Northern Ireland
| | - Thomas S. Moody
- Biocatalysis Group, Almac, David Keir Building, Stranmillis Road, Belfast BT9 5AG, Northern Ireland
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30
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García-Urdiales E, Alfonso I, Gotor V. Update 1 of: Enantioselective Enzymatic Desymmetrizations in Organic Synthesis. Chem Rev 2011; 111:PR110-80. [DOI: 10.1021/cr100330u] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Eduardo García-Urdiales
- Departamento de Química
Orgánica e Inorgánica, Facultad de Química, Universidad
de Oviedo, Julián Clavería, 8, 33006 Oviedo, Spain,
and
| | - Ignacio Alfonso
- Departamento de Química Biológica
y Modelización Molecular, Instituto de Química Avanzada
de Cataluña (IQAC, CSIC), Jordi Girona, 18-26, 08034, Barcelona,
Spain
| | - Vicente Gotor
- Departamento de Química
Orgánica e Inorgánica, Facultad de Química, Universidad
de Oviedo, Julián Clavería, 8, 33006 Oviedo, Spain,
and
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31
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Surmont R, Verniest G, De Groot A, Thuring JW, De Kimpe N. Morpholinosulfur Trifluoride (Morph-DAST)-Mediated Rearrangement in the Fluorination of Cyclic α,α-Dialkoxy Ketones toward 1,2-Dialkoxy-1,2-difluorinated Compounds. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000466] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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32
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Richter N, Neumann M, Liese A, Wohlgemuth R, Weckbecker A, Eggert T, Hummel W. Characterization of a whole-cell catalyst co-expressing glycerol dehydrogenase and glucose dehydrogenase and its application in the synthesis of L-glyceraldehyde. Biotechnol Bioeng 2010; 106:541-52. [PMID: 20198657 DOI: 10.1002/bit.22714] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A whole-cell catalyst using Escherichia coli BL21(DE3) as a host, co-expressing glycerol dehydrogenase (GlyDH) from Gluconobacter oxydans and glucose dehydrogenase (GDH) from Bacillus subtilis for cofactor regeneration, has been successfully constructed and used for the reduction of aliphatic aldehydes, such as hexanal or glyceraldehyde to the corresponding alcohols. This catalyst was characterized in terms of growth conditions, temperature and pH dependency, and regarding the influence of external cofactor and permeabilization. In the case of external cofactor addition we found a 4.6-fold increase in reaction rate caused by the addition of 1 mM NADP(+). Due to the fact that pH and temperature are also factors which may affect the reaction rate, their effect on the whole-cell catalyst was studied as well. Comparative studies between the whole-cell catalyst and the cell-free system were investigated. Furthermore, the successful application of the whole-cell catalyst in repetitive batch conversions could be demonstrated in the present study. Since the GlyDH was recently characterized and successfully applied in the kinetic resolution of racemic glyceraldehyde, we were now able to transfer and establish the process to a whole-cell system, which facilitated the access to L-glyceraldehyde in high enantioselectivity at 54% conversion. All in all, the whole-cell catalyst shows several advantages over the cell-free system like a higher thermal, a similar operational stability and the ability to recycle the catalyst without any loss-of-activity. The results obtained making the described whole-cell catalyst an improved catalyst for a more efficient production of enantiopure L-glyceraldehyde.
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Affiliation(s)
- Nina Richter
- Evocatal GmbH, Merowingerplatz 1a, 40225 Düsseldorf, Germany
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33
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Bisogno F, Rioz-Martínez A, Rodríguez C, Lavandera I, de Gonzalo G, Torres Pazmiño D, Fraaije M, Gotor V. Oxidoreductases Working Together: Concurrent Obtaining of Valuable Derivatives by Employing the PIKAT Method. ChemCatChem 2010. [DOI: 10.1002/cctc.201000115] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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34
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Gooding OW, Voladri R, Bautista A, Hopkins T, Huisman G, Jenne S, Ma S, Mundorff EC, Savile MM, Truesdell SJ, Wong JW. Development of a Practical Biocatalytic Process for (R)-2-Methylpentanol. Org Process Res Dev 2009. [DOI: 10.1021/op9002246] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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35
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Acetti D, Brenna E, Fuganti C, Gatti FG, Serra S. Baker's Yeast Reduction of β-Hydroxy Ketones. European J Org Chem 2009. [DOI: 10.1002/ejoc.200901006] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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36
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37
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Kim YH, Yoo YJ. Regeneration of the nicotinamide cofactor using a mediator-free electrochemical method with a tin oxide electrode. Enzyme Microb Technol 2009. [DOI: 10.1016/j.enzmictec.2008.10.019] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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