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Giri P, Pagar AD, Patil MD, Yun H. Chemical modification of enzymes to improve biocatalytic performance. Biotechnol Adv 2021; 53:107868. [PMID: 34774927 DOI: 10.1016/j.biotechadv.2021.107868] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 11/02/2021] [Accepted: 11/05/2021] [Indexed: 12/23/2022]
Abstract
Improvement in intrinsic enzymatic features is in many instances a prerequisite for the scalable applicability of many industrially important biocatalysts. To this end, various strategies of chemical modification of enzymes are maturing and now considered as a distinct way to improve biocatalytic properties. Traditional chemical modification methods utilize reactivities of amine, carboxylic, thiol and other side chains originating from canonical amino acids. On the other hand, noncanonical amino acid- mediated 'click' (bioorthogoal) chemistry and dehydroalanine (Dha)-mediated modifications have emerged as an alternate and promising ways to modify enzymes for functional enhancement. This review discusses the applications of various chemical modification tools that have been directed towards the improvement of functional properties and/or stability of diverse array of biocatalysts.
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Affiliation(s)
- Pritam Giri
- Department of Systems Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Amol D Pagar
- Department of Systems Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Mahesh D Patil
- Department of Nanomaterials and Application Technology, Center of Innovative and Applied Bioprocessing (CIAB), Sector-81, PO Manauli, S.A.S. Nagar, Mohali 140306, Punjab, India
| | - Hyungdon Yun
- Department of Systems Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea.
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2
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Imam HT, Krasňan V, Rebroš M, Marr AC. Applications of Ionic Liquids in Whole-Cell and Isolated Enzyme Biocatalysis. Molecules 2021; 26:4791. [PMID: 34443378 PMCID: PMC8399596 DOI: 10.3390/molecules26164791] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/04/2021] [Accepted: 08/05/2021] [Indexed: 11/16/2022] Open
Abstract
Ionic liquids have unique chemical properties that have fascinated scientists in many fields. The effects of adding ionic liquids to biocatalysts are many and varied. The uses of ionic liquids in biocatalysis include improved separations and phase behaviour, reduction in toxicity, and stabilization of protein structures. As the ionic liquid state of the art has progressed, concepts of what can be achieved in biocatalysis using ionic liquids have evolved and more beneficial effects have been discovered. In this review ionic liquids for whole-cell and isolated enzyme biocatalysis will be discussed with an emphasis on the latest developments, and a look to the future.
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Affiliation(s)
- Hasan Tanvir Imam
- School of Chemistry and Chemical Engineering, Queen’s University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5AG, UK;
| | - Vladimír Krasňan
- Institute of Biotechnology, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 812 37 Bratislava, Slovakia;
| | - Martin Rebroš
- Institute of Biotechnology, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 812 37 Bratislava, Slovakia;
| | - Andrew Craig Marr
- School of Chemistry and Chemical Engineering, Queen’s University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5AG, UK;
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3
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Pagar AD, Patil MD, Flood DT, Yoo TH, Dawson PE, Yun H. Recent Advances in Biocatalysis with Chemical Modification and Expanded Amino Acid Alphabet. Chem Rev 2021; 121:6173-6245. [PMID: 33886302 DOI: 10.1021/acs.chemrev.0c01201] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The two main strategies for enzyme engineering, directed evolution and rational design, have found widespread applications in improving the intrinsic activities of proteins. Although numerous advances have been achieved using these ground-breaking methods, the limited chemical diversity of the biopolymers, restricted to the 20 canonical amino acids, hampers creation of novel enzymes that Nature has never made thus far. To address this, much research has been devoted to expanding the protein sequence space via chemical modifications and/or incorporation of noncanonical amino acids (ncAAs). This review provides a balanced discussion and critical evaluation of the applications, recent advances, and technical breakthroughs in biocatalysis for three approaches: (i) chemical modification of cAAs, (ii) incorporation of ncAAs, and (iii) chemical modification of incorporated ncAAs. Furthermore, the applications of these approaches and the result on the functional properties and mechanistic study of the enzymes are extensively reviewed. We also discuss the design of artificial enzymes and directed evolution strategies for enzymes with ncAAs incorporated. Finally, we discuss the current challenges and future perspectives for biocatalysis using the expanded amino acid alphabet.
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Affiliation(s)
- Amol D Pagar
- Department of Systems Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea
| | - Mahesh D Patil
- Department of Systems Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea
| | - Dillon T Flood
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Tae Hyeon Yoo
- Department of Molecular Science and Technology, Ajou University, 206 World cup-ro, Yeongtong-gu, Suwon 16499, Korea
| | - Philip E Dawson
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Hyungdon Yun
- Department of Systems Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea
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4
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Xu C, Suo H, Xue Y, Qin J, Chen H, Hu Y. Experimental and theoretical evidence of enhanced catalytic performance of lipase B from Candida antarctica acquired by the chemical modification with amino acid ionic liquids. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2020.111355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ionic liquids for regulating biocatalytic process: Achievements and perspectives. Biotechnol Adv 2021; 51:107702. [PMID: 33515671 DOI: 10.1016/j.biotechadv.2021.107702] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/26/2020] [Accepted: 01/15/2021] [Indexed: 12/26/2022]
Abstract
Biocatalysis has found enormous applications in sorts of fields as an alternative to chemical catalysis. In the pursue of green and sustainable chemistry, ionic liquids (ILs) have been considered as promising reaction media for biocatalysis, owing to their unique characteristics, such as nonvolatility, inflammability and tunable properties as regards polarity and water miscibility behavior, compared to organic solvents. In recent years, great developments have been achieved in respects to biocatalysis in ILs, especially for preparing various chemicals. This review tends to give illustrative examples with a focus on representative chemicals production by biocatalyst in ILs and elucidate the possible mechanism in such systems. It also discusses how to regulate the catalytic efficiency from several aspects and finally provides an outlook on the opportunities to broaden biocatalysis in ILs.
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Zhao H. What do we learn from enzyme behaviors in organic solvents? - Structural functionalization of ionic liquids for enzyme activation and stabilization. Biotechnol Adv 2020; 45:107638. [PMID: 33002582 DOI: 10.1016/j.biotechadv.2020.107638] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/05/2020] [Accepted: 09/25/2020] [Indexed: 12/16/2022]
Abstract
Enzyme activity in nonaqueous media (e.g. conventional organic solvents) is typically lower than in water by several orders of magnitude. There is a rising interest of developing new nonaqueous solvent systems that are more "water-like" and more biocompatible. Therefore, we need to learn from the current state of nonaqueous biocatalysis to overcome its bottleneck and provide guidance for new solvent design. This review firstly focuses on the discussion of how organic solvent properties (such as polarity and hydrophobicity) influence the enzyme activity and stability, and how these properties impact the enzyme's conformation and dynamics. While hydrophobic organic solvents usually lead to the maintenance of enzyme activity, solvents carrying functional groups like hydroxys and ethers (including crown ethers and cyclodextrins) can lead to enzyme activation. Ionic liquids (ILs) are designable solvents that can conveniently incorporate these functional groups. Therefore, we systematically survey these ether- and/or hydroxy-functionalized ILs, and find most of them are highly compatible with enzymes leading to high activity and stability. In particular, ILs carrying both ether and tert-alcohol groups are among the most enzyme-activating solvents. Future direction is to learn from enzyme behaviors in both water and nonaqueous media to design biocompatible "water-like" solvents.
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Affiliation(s)
- Hua Zhao
- Department of Chemistry and Biochemistry, University of Northern Colorado, Greeley, CO 80639, United States.
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Yildirim D, Alagöz D, Toprak A, Tükel S, Fernandez-Lafuente R. Tuning dimeric formate dehydrogenases reduction/oxidation activities by immobilization. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.07.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Abdellaoui S, Seow Chavez M, Matanovic I, Stephens AR, Atanassov P, Minteer SD. Hybrid molecular/enzymatic catalytic cascade for complete electro-oxidation of glycerol using a promiscuous NAD-dependent formate dehydrogenase from Candida boidinii. Chem Commun (Camb) 2017; 53:5368-5371. [DOI: 10.1039/c7cc01027c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The formate dehydrogenase from Candida boidinii was combined with NH2-TEMPO to form a novel hybrid anode to oxidize glycerol to carbon dioxide at near-neutral pH.
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Affiliation(s)
- Sofiene Abdellaoui
- Departments of Chemistry and Materials Science and Engineering
- Salt Lake City
- USA
| | - Madelaine Seow Chavez
- The Department of Chemical and Biological Engineering
- Center for Micro-Engineered Materials (CMEM)
- University of New Mexico
- Albuquerque
- USA
| | - Ivana Matanovic
- The Department of Chemical and Biological Engineering
- Center for Micro-Engineered Materials (CMEM)
- University of New Mexico
- Albuquerque
- USA
| | - Andrew R. Stephens
- Departments of Chemistry and Materials Science and Engineering
- Salt Lake City
- USA
| | - Plamen Atanassov
- The Department of Chemical and Biological Engineering
- Center for Micro-Engineered Materials (CMEM)
- University of New Mexico
- Albuquerque
- USA
| | - Shelley D. Minteer
- Departments of Chemistry and Materials Science and Engineering
- Salt Lake City
- USA
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Benjamin M, Manoj D, Thenmozhi K, Bhagat PR, Saravanakumar D, Senthilkumar S. A bioinspired ionic liquid tagged cobalt-salophen complex for nonenzymatic detection of glucose. Biosens Bioelectron 2016; 91:380-387. [PMID: 28061420 DOI: 10.1016/j.bios.2016.12.064] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 12/21/2016] [Accepted: 12/29/2016] [Indexed: 01/04/2023]
Abstract
The development of efficient and cost effective nonenzymatic biosensors with remarkable sensitivity, selectivity and stability for the detection of biomolecules, especially glucose is one of the major challenges in materials- and electrochemistry. Herein, we report the design and preparation of nonenzymatic biosensor based on an ionic liquid tagged cobalt-salophen metal complex (Co-salophen-IL) immobilized on electrochemically reduced graphene oxide (ERGO) for the detection of glucose via an electrochemical oxidation. The bioinspired Co-salophen-IL complex has been synthesized and immobilized on ERGO, which was previously deposited on a screen printed carbon electrode (SPE) to form the Co-salophen-IL/ERGO/SPE nonenzymatic biosensor. The electrochemical behaviour of this modified electrode was studied using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). Notably, the Co-salophen-IL/ERGO/SPE biosensor exhibited excellent electrocatalytic activity towards glucose oxidation in 0.1M NaOH, based on which an amperometric sensor has been developed. The modified electrode has shown prominent performance towards glucose detection over a wide linear range from 0.2µM to 1.8mM with a detection limit and sensitivity of 0.79µM and 62µAmM-1 respectively. The detection was carried out at 0.40V and such a less working potential excludes the interference from the coexisting oxidizable analytes. The role of Co-salophen, IL and ERGO in the electrocatalytic activity has been systematically investigated. Furthermore, the biosensor demonstrated high stability with good reproducibility.
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Affiliation(s)
- Michael Benjamin
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore 632014, India
| | - Devaraj Manoj
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore 632014, India
| | - Kathavarayan Thenmozhi
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore 632014, India
| | - Pundlik Rambhau Bhagat
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore 632014, India
| | - Duraisamy Saravanakumar
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore 632014, India.
| | - Sellappan Senthilkumar
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore 632014, India.
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Elimination of a Free Cysteine by Creation of a Disulfide Bond Increases the Activity and Stability of Candida boidinii Formate Dehydrogenase. Appl Environ Microbiol 2016; 83:AEM.02624-16. [PMID: 27836850 PMCID: PMC5203636 DOI: 10.1128/aem.02624-16] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 11/07/2016] [Indexed: 11/20/2022] Open
Abstract
NAD+-dependent formate dehydrogenase (FDH; EC 1.2.1.2) is an industrial enzyme widely used for NADH regeneration. However, enzyme inactivation caused by the oxidation of cysteine residues is a flaw of native FDH. In this study, we relieved the oxidation of the free cysteine of FDH from Candida boidinii (CboFDH) through the construction of disulfide bonds between A10 and C23 as well as I239 and C262. Variants A10C, I239C, and A10C/I239C were obtained by the site-directed mutagenesis and their properties were studied. Results showed that there were no significant changes in the optimum temperature and pH between variants and wild-type CboFDH. However, the stabilities of all variant enzymes were improved. Specifically, the CboFDH variant A10C (A10Cfdh) showed a significant increase in copper ion resistance and acid resistance, a 6.7-fold increase in half-life at 60°C, and a 1.4-fold increase in catalytic efficiency compared with the wild type. Asymmetric synthesis of l-tert-leucine indicated that the process time was reduced by 40% with variant A10Cfdh, which benefited from the increase in catalytic efficiency. Circular dichroism analysis and molecular dynamics simulation indicated that variants that contained disulfide bonds lowered the overall root mean square deviation (RMSD) and consequently increased the protein rigidity without affecting the secondary structure of enzyme. This work is expected to provide a viable strategy to avoid the microbial enzyme inactivation caused by the oxidation of the free cysteine residues and improving their performances. IMPORTANCE FDH is widely used for NADH regeneration in dehydrogenase-based synthesis of optically active compounds to decrease the cost of production. This study highlighted a viable strategy that was used to eliminate the oxidation of free cysteine residues of FDH from Candida boidinii by the introduction of disulfide bonds. Using this strategy, we obtained a variant FDH with improved activity and stability. The improvement of activity and stability of FDH is expected to reduce its price and then further to decrease the cost of its application.
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11
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12
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Zhao H. Protein Stabilization and Enzyme Activation in Ionic Liquids: Specific Ion Effects. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (OXFORD, OXFORDSHIRE : 1986) 2016; 91:25-50. [PMID: 26949281 PMCID: PMC4777319 DOI: 10.1002/jctb.4837] [Citation(s) in RCA: 186] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 10/12/2015] [Indexed: 05/08/2023]
Abstract
There are still debates on whether the hydration of ions perturbs the water structure, and what is the degree of such disturbance; therefore, the origin of Hofmeister effect on protein stabilization continues being questioned. For this reason, it is suggested to use the 'specific ion effect' instead of other misleading terms such as Hofmeister effect, Hofmeister series, lyotropic effect, and lyotropic series. In this review, we firstly discuss the controversial aspect of inorganic ion effects on water structures, and several possible contributors to the specific ion effect of protein stability. Due to recent overwhelming attraction of ionic liquids (ILs) as benign solvents in many enzymatic reactions, we further evaluate the structural properties and molecular-level interactions in neat ILs and their aqueous solutions. Next, we systematically compare the specific ion effects of ILs on enzyme stability and activity, and conclude that (a) the specificity of many enzymatic systems in diluted aqueous IL solutions is roughly in line with the traditional Hofmeister series albeit some exceptions; (b) however, the specificity follows a different track in concentrated or neat ILs because other factors (such as hydrogen-bond basicity, nucelophilicity, and hydrophobicity, etc) are playing leading roles. In addition, we demonstrate some examples of biocatalytic reactions in IL systems that are guided by the empirical specificity rule.
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Affiliation(s)
- Hua Zhao
- Department of Chemistry and Forensic Science, Savannah State University, Savannah, GA 31404, USA
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13
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Li X, Zhang C, Li S, Huang H, Hu Y. Improving Catalytic Performance of Candida rugosa Lipase by Chemical Modification with Polyethylene Glycol Functional Ionic Liquids. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b01881] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Xiujuan Li
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing Tech University, No. 5 Xinmofan Road, Nanjing 210009, China
| | - Chuan Zhang
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing Tech University, No. 5 Xinmofan Road, Nanjing 210009, China
| | - Shuang Li
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing Tech University, No. 5 Xinmofan Road, Nanjing 210009, China
| | - He Huang
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing Tech University, No. 5 Xinmofan Road, Nanjing 210009, China
| | - Yi Hu
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing Tech University, No. 5 Xinmofan Road, Nanjing 210009, China
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14
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Carter JLL, Santini CC, Blum LJ, Doumèche B. Peroxide detected in imidazolium-based ionic liquids and approaches for reducing its presence in aqueous and non-aqueous environments. RSC Adv 2015. [DOI: 10.1039/c5ra01080b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Peroxide species appearing in imidazolium-based ionic liquids could be removed by salen–manganese complexes or the enzyme catalase.
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Affiliation(s)
| | | | - Loïc J. Blum
- GEMBAS
- ICBMS UMR 5246
- Université Lyon 1
- CNRS
- 69622 Villeurbanne Cedex
| | - Bastien Doumèche
- GEMBAS
- ICBMS UMR 5246
- Université Lyon 1
- CNRS
- 69622 Villeurbanne Cedex
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15
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Carter JLL, Bekhouche M, Noiriel A, Blum LJ, Doumèche B. Directed evolution of a formate dehydrogenase for increased tolerance to ionic liquids reveals a new site for increasing the stability. Chembiochem 2014; 15:2710-8. [PMID: 25346488 DOI: 10.1002/cbic.201402501] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Indexed: 12/18/2022]
Abstract
The formate dehydrogenase (FDH) from Candida boidinii is a well-known enzyme in biocatalysis for NADH regeneration. Nevertheless, it has low activity in a water-miscible ionic liquid (1,3-dimethylimidazolium dimethyl phosphate, [MMIm][Me2 PO4 ]). In this work, this enzyme was subjected to directed evolution by using error-prone PCR, and a mutant (N187S/T321S) displaying higher activity was obtained following selection based on the formazan-based colorimetric assay. The mutation N187S is responsible for improved activity both in aqueous solution and in [MMIm][Me2 PO4 ], through an enhancement of the kcat value by a factor of 5.8. Fluorescence experiments performed in the presence of a quenching agent revealed that the mutant does not unfold in the presence of 50 % (v/v) [MMIm][Me2 PO4 ] whereas the wild-type enzyme does. Molecular modelling revealed that the mutation is located at the monomer-monomer interface and causes an increase in the pKa of residue E163 from 4.8 to 5.5. Calculation of the pKa of this residue in other microbial FDHs showed that thermostable FDHs have a highly basic glutamate at this position (pKa up to 6.2). We have identified a new site for improving FDH thermostability and tolerance to ionic liquids, and it is linked to the local charge of the enzymes in this class.
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Affiliation(s)
- Julie L L Carter
- Génie Enzymatique, Membranes Biomimétiques et Assemblages Supramoléculaires (GEMBAS), Institut de Chimie et Biochimie Moléculaire et Supramoléculaire (ICBMS), UMR CNRS 5246, Université Claude Bernard Lyon 1, 43 boulevard du 11 Novembre 1918, Villeurbanne 69622 (France)
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Improving the catalytic performance of porcine pancreatic lipase in the presence of [MMIm][MeSO4] with the modification of functional ionic liquids. Process Biochem 2014. [DOI: 10.1016/j.procbio.2014.01.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Hoff BH, Sundby E. Preparation of pharmaceutical important fluorinated 1-arylethanols using isolated enzymes. Bioorg Chem 2013; 51:31-47. [DOI: 10.1016/j.bioorg.2013.09.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 09/06/2013] [Accepted: 09/12/2013] [Indexed: 10/26/2022]
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18
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Tietze AA, Bordusa F, Giernoth R, Imhof D, Lenzer T, Maaß A, Mrestani-Klaus C, Neundorf I, Oum K, Reith D, Stark A. On the Nature of Interactions between Ionic Liquids and Small Amino-Acid-Based Biomolecules. Chemphyschem 2013; 14:4044-64. [DOI: 10.1002/cphc.201300736] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2013] [Revised: 09/03/2013] [Indexed: 01/18/2023]
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19
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Jia R, Hu Y, Liu L, Jiang L, Zou B, Huang H. Enhancing Catalytic Performance of Porcine Pancreatic Lipase by Covalent Modification Using Functional Ionic Liquids. ACS Catal 2013. [DOI: 10.1021/cs400404f] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Ru Jia
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing University of Technology, Nanjing 210009, China
| | - Yi Hu
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing University of Technology, Nanjing 210009, China
| | - Luo Liu
- Beijing Key Laboratory of Bioprocess,
College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ling Jiang
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing University of Technology, Nanjing 210009, China
| | - Bin Zou
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing University of Technology, Nanjing 210009, China
| | - He Huang
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing University of Technology, Nanjing 210009, China
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20
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Jia R, Hu Y, Liu L, Jiang L, Huang H. Chemical modification for improving activity and stability of lipase B from Candida antarctica with imidazolium-functional ionic liquids. Org Biomol Chem 2013; 11:7192-8. [DOI: 10.1039/c3ob41076e] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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21
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Tang S, Baker GA, Zhao H. Ether- and alcohol-functionalized task-specific ionic liquids: attractive properties and applications. Chem Soc Rev 2012; 41:4030-66. [PMID: 22456483 PMCID: PMC3341508 DOI: 10.1039/c2cs15362a] [Citation(s) in RCA: 338] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In recent years, the designer nature of ionic liquids (ILs) has driven their exploration and exploitation in countless fields among the physical and chemical sciences. A fair measure of the tremendous attention placed on these fluids has been attributed to their inherent designer nature. And yet, there are relatively few examples of reviews that emphasize this vital aspect in an exhaustive or meaningful way. In this critical review, we systematically survey the physicochemical properties of the collective library of ether- and alcohol-functionalized ILs, highlighting the impact of ionic structure on features such as viscosity, phase behavior/transitions, density, thermostability, electrochemical properties, and polarity (e.g. hydrophilicity, hydrogen bonding capability). In the latter portions of this review, we emphasize the attractive applications of these functionalized ILs across a range of disciplines, including their use as electrolytes or functional fluids for electrochemistry, extractions, biphasic systems, gas separations, carbon capture, carbohydrate dissolution (particularly, the (ligno)celluloses), polymer chemistry, antimicrobial and antielectrostatic agents, organic synthesis, biomolecular stabilization and activation, and nanoscience. Finally, this review discusses anion-functionalized ILs, including sulfur- and oxygen-functionalized analogs, as well as choline-based deep eutectic solvents (DESs), an emerging class of fluids which can be sensibly categorized as semi-molecular cousins to the IL. Finally, the toxicity and biodegradability of ether- and alcohol-functionalized ILs are discussed and cautiously evaluated in light of recent reports. By carefully summarizing literature examples on the properties and applications of oxy-functional designer ILs up till now, it is our intent that this review offers a barometer for gauging future advances in the field as well as a trigger to spur further contemplation of these seemingly inexhaustible and--relative to their potential--virtually untouched fluids. It is abundantly clear that these remarkable fluidic materials are here to stay, just as certain design rules are slowly beginning to emerge. However, in fairness, serendipity also still plays an undeniable role, highlighting the need for both expanded in silico studies and a beacon to attract bright, young researchers to the field (406 references).
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Affiliation(s)
- Shaokun Tang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, China
| | - Gary A. Baker
- Department of Chemistry, University of Missouri-Columbia, Columbia, MO 65211, USA
| | - Hua Zhao
- Chemistry Program, Savannah State University, Savannah, GA 31404, USA
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Bekhouche M, Blum LJ, Doumèche B. Contribution of Dynamic and Static Quenchers for the Study of Protein Conformation in Ionic Liquids by Steady-State Fluorescence Spectroscopy. J Phys Chem B 2011; 116:413-23. [DOI: 10.1021/jp205094c] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mourad Bekhouche
- ICBMS, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, CNRS UMR 5246, Université Lyon 1, 43 boulevard du 11 novembre 1918, Villeurbanne F-69622, France
| | - Loïc J. Blum
- ICBMS, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, CNRS UMR 5246, Université Lyon 1, 43 boulevard du 11 novembre 1918, Villeurbanne F-69622, France
| | - Bastien Doumèche
- ICBMS, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, CNRS UMR 5246, Université Lyon 1, 43 boulevard du 11 novembre 1918, Villeurbanne F-69622, France
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Domínguez de María P, Maugeri Z. Ionic liquids in biotransformations: from proof-of-concept to emerging deep-eutectic-solvents. Curr Opin Chem Biol 2011; 15:220-5. [DOI: 10.1016/j.cbpa.2010.11.008] [Citation(s) in RCA: 241] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Revised: 11/03/2010] [Accepted: 11/08/2010] [Indexed: 11/29/2022]
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Hydrogen bioelectrooxidation in ionic liquids: From cytochrome c3 redox behavior to hydrogenase activity. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2010.12.104] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Bekhouche M, Blum LJ, Doumèche B. Ionic Liquid-Inspired Cations Covalently Bound to Formate Dehydrogenase Improve its Stability and Activity in Ionic Liquids. ChemCatChem 2011. [DOI: 10.1002/cctc.201000390] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Camplo M, Wathier M, Chow J, Grinstaff MW. A versatile reagent to synthesize diverse ionic liquids ranging from small molecules and dendrimers to functionalized proteins. Chem Commun (Camb) 2011; 47:2128-30. [DOI: 10.1039/c0cc04459h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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