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Bharmoria P, Tietze AA, Mondal D, Kang TS, Kumar A, Freire MG. Do Ionic Liquids Exhibit the Required Characteristics to Dissolve, Extract, Stabilize, and Purify Proteins? Past-Present-Future Assessment. Chem Rev 2024; 124:3037-3084. [PMID: 38437627 PMCID: PMC10979405 DOI: 10.1021/acs.chemrev.3c00551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 02/08/2024] [Accepted: 02/19/2024] [Indexed: 03/06/2024]
Abstract
Proteins are highly labile molecules, thus requiring the presence of appropriate solvents and excipients in their liquid milieu to keep their stability and biological activity. In this field, ionic liquids (ILs) have gained momentum in the past years, with a relevant number of works reporting their successful use to dissolve, stabilize, extract, and purify proteins. Different approaches in protein-IL systems have been reported, namely, proteins dissolved in (i) neat ILs, (ii) ILs as co-solvents, (iii) ILs as adjuvants, (iv) ILs as surfactants, (v) ILs as phase-forming components of aqueous biphasic systems, and (vi) IL-polymer-protein/peptide conjugates. Herein, we critically analyze the works published to date and provide a comprehensive understanding of the IL-protein interactions affecting the stability, conformational alteration, unfolding, misfolding, and refolding of proteins while providing directions for future studies in view of imminent applications. Overall, it has been found that the stability or purification of proteins by ILs is bispecific and depends on the structure of both the IL and the protein. The most promising IL-protein systems are identified, which is valuable when foreseeing market applications of ILs, e.g., in "protein packaging" and "detergent applications". Future directions and other possibilities of IL-protein systems in light-harvesting and biotechnology/biomedical applications are discussed.
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Affiliation(s)
- Pankaj Bharmoria
- CICECO
- Aveiro Institute of Materials, Chemistry Department, University of Aveiro, 3810-193 Aveiro, Portugal
- Department
of Smart Molecular, Inorganic and Hybrid Materials, Institute of Materials Science of Barcelona (ICMAB-CSIC), 08193 Bellaterra, Barcelona, Spain
- Department
of Chemistry and Molecular Biology, Wallenberg Centre for Molecular
and Translational Medicine, University of
Gothenburg, SE-412 96 Göteborg, Sweden
| | - Alesia A. Tietze
- Department
of Chemistry and Molecular Biology, Wallenberg Centre for Molecular
and Translational Medicine, University of
Gothenburg, SE-412 96 Göteborg, Sweden
| | - Dibyendu Mondal
- CICECO
- Aveiro Institute of Materials, Chemistry Department, University of Aveiro, 3810-193 Aveiro, Portugal
- Institute
of Plant Genetics (IPG), Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland
- Centre
for Nano and Material Sciences, JAIN (Deemed-to-be
University), Jain Global
Campus, Bangalore 562112, India
| | - Tejwant Singh Kang
- Department
of Chemistry, UGC Center for Advance Studies-II,
Guru Nanak Dev University (GNDU), Amritsar 143005, Punjab, India
| | - Arvind Kumar
- Salt
and Marine Chemicals Division, CSIR-Central
Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar 364002, Gujarat, India
| | - Mara G Freire
- CICECO
- Aveiro Institute of Materials, Chemistry Department, University of Aveiro, 3810-193 Aveiro, Portugal
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2
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Takekiyo T, Yamada S, Uto T, Nakayama M, Hirata T, Ishizaki T, Kuroda K, Yoshimura Y. Protein Cryoprotectant Ability of the Aqueous Zwitterionic Solution. J Phys Chem B 2024; 128:526-535. [PMID: 38176060 DOI: 10.1021/acs.jpcb.3c05614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Protein cryopreservation is important for the long-term storage of unstable proteins. Recently, we found that N-acetylglucosaminyltransferase-V (GnT-V) can be cryopreserved in a deep freezer without temperature control using a dilute binary aqueous solution of 3-(1-(2-(2-methoxyethoxy)ethyl)imidazol-3-io)butane-1-carboxylate (OE2imC3C) [10 wt %, mole fraction of solute (x) = 7.75 × 10-3], an artificial zwitterion. However, it is unclear which solvent properties are required in these media to preserve unstable proteins, such as GnT-V. In this study, we investigated the melting phenomena and solution structure of dilute binary aqueous OE2imC3C solutions [x = 0-2.96 × 10-2 (0-30 wt %)] using differential scanning calorimetry (DSC) and Raman and Fourier transform infrared (FTIR) spectroscopies combined with molecular dynamics (MD) simulation to compare the cryoprotectant ability of OE2imC3C with two general cryoprotectants (CPAs), glycerol and dimethyl sulfoxide. DSC results indicated that aqueous OE2imC3C solutions can be melted at lower temperatures with less energy than the control CPA solution, with increasing x, primarily due to OE2imC3C having a higher content of unfrozen water molecules. Moreover, Raman and FTIR results showed that the high content of unfrozen water molecules in aqueous OE2imC3C solutions was due to the hydration around the ionic parts (the COO- group and imidazolium ring) and the OCH2CH2O segment. In addition, the MD simulation results showed that there were fewer structured water molecules around the OCH2CH2O segment than the hydration water molecules around the ionic parts. These solvent properties suggest that dilute aqueous OE2imC3C solutions are effective in preventing freezing, even in a deep freezer. Therefore, this medium has the potential to act as a novel cryoprotectant for proteins in biotechnology and biomedical fields.
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Affiliation(s)
- Takahiro Takekiyo
- Department of Applied Chemistry, National Defense Academy, Yokosuka, Kanagawa 239-8686, Japan
| | - Shuto Yamada
- Department of Applied Chemistry, National Defense Academy, Yokosuka, Kanagawa 239-8686, Japan
| | - Takuya Uto
- Faculty of Engineering, University of Miyazaki, Nishi 1-1 Gakuen Kibanadai, Miyazaki 889-2192, Japan
| | - Masaharu Nakayama
- Department of Applied Chemistry, National Defense Academy, Yokosuka, Kanagawa 239-8686, Japan
| | - Tetsuya Hirata
- Department of Biochemistry, Duke University, School of Medicine, Durham, North Carolina 27710, United States
| | - Takeru Ishizaki
- Institute of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Kosuke Kuroda
- Institute of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
- NanoMaterials Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Yukihiro Yoshimura
- Department of Applied Chemistry, National Defense Academy, Yokosuka, Kanagawa 239-8686, Japan
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3
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Lomba L, García CB, Benito L, Sangüesa E, Santander S, Zuriaga E. Advances in Cryopreservatives: Exploring Safer Alternatives. ACS Biomater Sci Eng 2024; 10:178-190. [PMID: 38141007 DOI: 10.1021/acsbiomaterials.3c00859] [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] [Indexed: 12/24/2023]
Abstract
Cryopreservation of cells, tissues, and organs is widely used in the biomedical and research world. There are different cryopreservatives that are used for this process; however, many of them, such as DMSO, are used despite the problems they present, mainly due to the toxicity it presents to certain types of samples. The aim of this Review is to highlight the different types of substances used in the cryopreservation process. It has been shown that some of these substances are well-known, as in the case of the families of alcohols, sugars, sulfoxides, etc. However, in recent years, other compounds have appeared, such as ionic liquids, deep eutectic solvents, or certain polymers, which open the door to new cryopreservation methods and are also less toxic to frozen samples.
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Affiliation(s)
- Laura Lomba
- Facultad de Ciencias de la Salud, Universidad San Jorge. Campus Universitario, Autov A23 km 299, 50830 Villanueva de Gállego, Zaragoza, Spain
| | - Cristina B García
- Facultad de Ciencias de la Salud, Universidad San Jorge. Campus Universitario, Autov A23 km 299, 50830 Villanueva de Gállego, Zaragoza, Spain
| | - Lucía Benito
- Facultad de Ciencias de la Salud, Universidad San Jorge. Campus Universitario, Autov A23 km 299, 50830 Villanueva de Gállego, Zaragoza, Spain
| | - Estela Sangüesa
- Facultad de Ciencias de la Salud, Universidad San Jorge. Campus Universitario, Autov A23 km 299, 50830 Villanueva de Gállego, Zaragoza, Spain
| | - Sonia Santander
- Faculty of Health and Sports Sciences, University of Zaragoza, Campus of Huesca, 22002 Huesca, Spain
| | - Estefanía Zuriaga
- Facultad de Ciencias de la Salud, Universidad San Jorge. Campus Universitario, Autov A23 km 299, 50830 Villanueva de Gállego, Zaragoza, Spain
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4
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Bakulina OD, Ivanov MY, Prikhod’ko SA, Adonin NY, Fedin MV. Effects of Zwitterions on Structural Anomalies in Ionic Liquid Glasses Studied by EPR. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2164. [PMID: 37570482 PMCID: PMC10420841 DOI: 10.3390/nano13152164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 07/22/2023] [Accepted: 07/23/2023] [Indexed: 08/13/2023]
Abstract
Ionic liquids (ILs) form a variety of nanostructures due to their amphiphilic nature. Recently, unusual structural phenomena have been found in glassy ILs near their glass transition temperatures; however, in all studied cases, IL cations and anions were in the form of separate moieties. In this work, we investigate for the first time such structural anomalies in zwitterionic IL glasses (ZILs), where the cation and anion are bound in a single molecule. Such binding reasonably restricts mutual diffusion of cations and anions, leading to modification of nano-ordering and character of structural anomalies in these glassy nanomaterials, as has been investigated using Electron Paramagnetic Resonance (EPR) spectroscopy. In particular, the occurrence of structural anomalies in ZIL glasses was revealed, and their characteristic temperatures were found to be higher compared to common ILs of a similar structure. Altogether, this work broadens the scope of structural anomalies in ionic liquid glasses and indicates new routes to tune their properties.
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Affiliation(s)
- Olga D. Bakulina
- International Tomography Center SB RAS, Institutskaya Street 3a, 630090 Novosibirsk, Russia;
- Physics Department, Novosibirsk State University, Pirogova Street 2, 630090 Novosibirsk, Russia
| | - Mikhail Yu. Ivanov
- International Tomography Center SB RAS, Institutskaya Street 3a, 630090 Novosibirsk, Russia;
- Physics Department, Novosibirsk State University, Pirogova Street 2, 630090 Novosibirsk, Russia
| | - Sergey A. Prikhod’ko
- Boreskov Institute of Catalysis SB RAS, Lavrentiev Avenue 5, 630090 Novosibirsk, Russia; (S.A.P.); (N.Y.A.)
| | - Nicolay Yu. Adonin
- Boreskov Institute of Catalysis SB RAS, Lavrentiev Avenue 5, 630090 Novosibirsk, Russia; (S.A.P.); (N.Y.A.)
| | - Matvey V. Fedin
- International Tomography Center SB RAS, Institutskaya Street 3a, 630090 Novosibirsk, Russia;
- Physics Department, Novosibirsk State University, Pirogova Street 2, 630090 Novosibirsk, Russia
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5
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Guncheva M. Role of ionic liquids on stabilization of therapeutic proteins and model proteins. Protein J 2022; 41:369-380. [PMID: 35661292 DOI: 10.1007/s10930-022-10058-5] [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] [Accepted: 05/24/2022] [Indexed: 11/26/2022]
Abstract
Ionic liquids (ILs) exhibit potential as excipients to stabilize proteins in solutions. This mini-review is not a detailed reference book on ILs, rather a brief overview of the main achievements published in the literature on their effect on protein aggregation, unfolding, structural and thermal stability, and activity. The main focus of the manuscript is three widely studied groups of ionic liquids: imidazolium-, cholinium- and alkylammonium-based and their effect on the model and therapeutic proteins.
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Affiliation(s)
- Maya Guncheva
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 9, 1113, Sofia, Bulgaria.
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6
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The activity and molecular interaction of lysozyme in adding four ionic liquids aqueous solutions. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Hirata T, Takekiyo T, Yoshimura Y, Tokoro Y, Ishizaki T, Kizuka Y, Kuroda K. Cryostorage of unstable N-acetylglucosaminyltransferase-V by synthetic zwitterions. RSC Adv 2022; 12:11628-11631. [PMID: 35481097 PMCID: PMC9016413 DOI: 10.1039/d2ra01575g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/07/2022] [Indexed: 11/21/2022] Open
Abstract
We report biocompatible materials for cryostorage of unstable proteins such as cancer-related enzyme, N-acetylglucosaminyltransferase-V (GnT-V). GnT-V activity and the amount of protein after freezing were better retained in synthetic zwitterion solutions than in the glycerol solution. This study highlights the potential utility of synthetic zwitterions as novel cryoprotectants. We report biocompatible materials for cryostorage of unstable proteins such as cancer-related enzyme, N-acetylglucosaminyltransferase-V (GnT-V).![]()
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Affiliation(s)
- Tetsuya Hirata
- Institute for Glyco-core Research (iGCORE), Gifu University Gifu Gifu 501-1193 Japan
| | - Takahiro Takekiyo
- Department of Applied Chemistry, National Defense Academy Yokosuka Kanagawa 239-8686 Japan
| | - Yukihiro Yoshimura
- Department of Applied Chemistry, National Defense Academy Yokosuka Kanagawa 239-8686 Japan
| | - Yuko Tokoro
- Institute for Glyco-core Research (iGCORE), Gifu University Gifu Gifu 501-1193 Japan
| | - Takeru Ishizaki
- Faculty of Biological Science and Technology, Institute of Science and Engineering, Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Yasuhiko Kizuka
- Institute for Glyco-core Research (iGCORE), Gifu University Gifu Gifu 501-1193 Japan
| | - Kosuke Kuroda
- Faculty of Biological Science and Technology, Institute of Science and Engineering, Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan .,NanoMaterials Research Institute, Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
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8
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Ivanov MY, Surovtsev NV, Fedin MV. Ionic liquid glasses: properties and applications. RUSSIAN CHEMICAL REVIEWS 2022. [DOI: 10.1070/rcr5031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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9
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Han Q, Binns J, Zhai J, Guo X, Ryan TM, Drummond CJ, Greaves TL. Insights on lysozyme aggregation in protic ionic liquid solvents by using small angle X-ray scattering and high throughput screening. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117816] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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10
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Ivanov MY, Bakulina OD, Alimov DV, Prikhod'ko SA, Veber SL, Pylaeva S, Adonin NY, Fedin MV. Inherent heterogeneities and nanostructural anomalies in organic glasses revealed by EPR. NANOSCALE ADVANCES 2021; 3:4973-4978. [PMID: 36132341 PMCID: PMC9416887 DOI: 10.1039/d1na00452b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 07/22/2021] [Indexed: 06/15/2023]
Abstract
Intriguing heterogeneities and nanostructural reorganizations of glassy ionic liquids (ILs) have recently been found using electron paramagnetic resonance (EPR) spectroscopy. Alkyl chains of IL cations play the key role in such phenomena and govern the anomalous temperature dependence of local density and molecular mobility. In this paper we evidence and study similar manifestations in a variety of common non-IL glasses, which also contain molecules with alkyl chains. A series of phthalates clearly demonstrates very similar behavior to imidazolium-based ILs with the same length of alkyl chain. Glasses of alkyl alcohols and alkyl benzenes show only some similarities to the corresponding ILs, mainly due to a lower glass transition temperature hindering the development of the anomaly. Therefore, we demonstrate the general nature and broad scope of nanoscale structural anomalies in organic glasses based on alkyl-chain compounds. The 'roadmap' for their occurrence is provided, which aids in understanding and future applications of these anomalous nanoheterogeneities.
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Affiliation(s)
- Mikhail Yu Ivanov
- International Tomography Center SB RAS, Institutskaya Street 3a 630090 Novosibirsk Russia
| | - Olga D Bakulina
- International Tomography Center SB RAS, Institutskaya Street 3a 630090 Novosibirsk Russia
- Novosibirsk State University Pirogova Street 2 630090 Novosibirsk Russia
| | - Dmitriy V Alimov
- Novosibirsk State University Pirogova Street 2 630090 Novosibirsk Russia
| | - Sergey A Prikhod'ko
- Boreskov Institute of Catalysis SB RAS Lavrentiev Avenue 5 630090 Novosibirsk Russia
| | - Sergey L Veber
- International Tomography Center SB RAS, Institutskaya Street 3a 630090 Novosibirsk Russia
| | - Svetlana Pylaeva
- Universität Paderborn Warburger Str. 100 33098 Paderborn Germany
| | - Nicolay Yu Adonin
- Boreskov Institute of Catalysis SB RAS Lavrentiev Avenue 5 630090 Novosibirsk Russia
| | - Matvey V Fedin
- International Tomography Center SB RAS, Institutskaya Street 3a 630090 Novosibirsk Russia
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11
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Mohammadi S, Khajeh K, Taghdir M, Ranjbar B. An experimental investigation on the influence of various buffer concentrations, osmolytes and gold nanoparticles on lysozyme: Spectroscopic and calorimetric study. Int J Biol Macromol 2021; 172:162-169. [PMID: 33412205 DOI: 10.1016/j.ijbiomac.2020.12.208] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 12/27/2020] [Accepted: 12/29/2020] [Indexed: 11/27/2022]
Abstract
Considering importance and several industrial applications of lysozyme, including natural antibiotic and preservative, identifier for the diagnosis of diseases, and extraction purposes, its reversibility and stability studies can be very important. In this paper, the role that buffer and osmolytes concentrations play on the thermodynamic stability of lysozyme denaturation process, that is a new simple and inexpensive method, was evaluated by Nano-DSC III, far- and near-UV CD and fluorescence techniques. In thermal denaturation study, RI and ΔG of protein increased from 25.62% to 58.82% and 48.87 to 63.63 kJ mol-1 with the increment of buffer and osmolytes concentrations, respectively. These changes showed a significant increase of 129.59% in RI and 28.16% in ΔG. The effect of buffer and osmolytes concentrations on the secondary and tertiary structures of protein was also investigated. The results indicated that increment of buffer and osmolytes concentrations increase rigidity and thermodynamic stability of protein. Also, structure of protein may be changed by its interaction with GNPs. Hence, interaction of lysozyme with GNPs was studied at the buffer and osmolytes concentrations that gives the maximum RI and ΔG, respectively. The results showed that molten globule-like state was formed by lysozyme in the presence of GNPs.
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Affiliation(s)
- Soraya Mohammadi
- Department of Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran
| | - Khosro Khajeh
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran
| | - Majid Taghdir
- Department of Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran
| | - Bijan Ranjbar
- Department of Biophysics, Faculty of Biological Sciences, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran.
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12
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Bakulina OD, Ivanov MY, Prikhod'ko SA, Pylaeva S, Zaytseva IV, Surovtsev NV, Adonin NY, Fedin MV. Nanocage formation and structural anomalies in imidazolium ionic liquid glasses governed by alkyl chains of cations. NANOSCALE 2020; 12:19982-19991. [PMID: 32996529 DOI: 10.1039/d0nr06065h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Intriguing nanostructuring anomalies have been recently observed in imidazolium ionic liquids (ILs) near their glass transition points, where local density around a nanocaged solute progressively grows up with temperature. Herewith, we for the first time demonstrate experimentally and theoretically, that these anomalies are governed by alkyl chains of cations and crucially depend on their length. Electron Paramagnetic Resonance (EPR) spectroscopy on a series of ILs [Cnmim]BF4 (n = 0-12) shows that only the chains with n = 3-10 favor anomaly. Moreover, remarkable even vs. odd n peculiarities were systematically observed. Finally, similar anomaly was for the first time observed for a non-IL glass of dibutyl phthalate, which structurally mimics cations of imidazolium ILs. Therefore, such anomalous density behavior in a glassy state nanocage goes far beyond ILs and proves to be a more general phenomenon, which can be structurally tuned and rationally adjusted for various potential applications in nanoscale materials.
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Affiliation(s)
- Olga D Bakulina
- International Tomography Center SB RAS, Institutskaya Street 3a, 630090 Novosibirsk, Russia.
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13
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Han Q, Smith KM, Darmanin C, Ryan TM, Drummond CJ, Greaves TL. Lysozyme conformational changes with ionic liquids: Spectroscopic, small angle x-ray scattering and crystallographic study. J Colloid Interface Sci 2020; 585:433-443. [PMID: 33109332 DOI: 10.1016/j.jcis.2020.10.024] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/19/2020] [Accepted: 10/07/2020] [Indexed: 01/14/2023]
Abstract
Solvents that support protein functionality are important for biochemical applications, and new solvents are required. Here we employ FTIR and fluorescence spectroscopies, small angle X-ray scattering (SAXS) and X-ray crystallography to understand conformational changes of lysozyme with ionic liquids (ILs) added. Spectroscopic techniques identified that the secondary structure of lysozyme was maintained at the lower IL concentrations of 1 and 5 mol%, though the Tryptophan environment was significantly altered with nitrate-based ILs present. SAXS experiments indicated that the radius of gyration of lysozyme increased with 1 mol% IL present, and then decreased with increasing IL concentrations. The tertiary structure, particularly the loop regions, changed as a function of IL concentration, and this depended on the IL type. The crystallographic structure of lysozyme with the IL of ethylammonium nitrate present confirmed the loop region was extended, and identified three specific binding sites with nitrate ions, and that the positively charged areas were IL sensitive regions. This work provides a detailed understanding of lysozyme conformational changes in the presence of ILs. This approach can be extended to other functionally-important proteins.
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Affiliation(s)
- Qi Han
- School of Science, College of Science, Engineering and Health, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia
| | - Kate M Smith
- Australian Synchrotron, Australian Nuclear Science and Technology Organisation, 800 Blackburn Road, Clayton, VIC, 3168, Australia
| | - Connie Darmanin
- ARC Centre of Excellence in Advanced Molecular Imaging, Department of Chemistry and Physics, La Trobe Institute for Molecular Sciences, La Trobe University, VIC 3086, Australia
| | - Timothy M Ryan
- Australian Synchrotron, Australian Nuclear Science and Technology Organisation, 800 Blackburn Road, Clayton, VIC, 3168, Australia
| | - Calum J Drummond
- School of Science, College of Science, Engineering and Health, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia
| | - Tamar L Greaves
- School of Science, College of Science, Engineering and Health, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia.
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14
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Ivanov MY, Prikhod’ko SA, Adonin NY, Fedin MV. Structural Anomalies in Binary Mixtures of Ionic Liquid [Bmim]BF4 with Water Studied by EPR. J Phys Chem B 2019; 123:9956-9962. [DOI: 10.1021/acs.jpcb.9b08933] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Mikhail Yu. Ivanov
- International Tomography Center SB RAS, Institutskaya Street 3a, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova Street 2, 630090 Novosibirsk, Russia
| | - Sergey A. Prikhod’ko
- Boreskov Institute of Catalysis SB RAS, Lavrentiev Avenue 5, 630090 Novosibirsk, Russia
| | - Nicolay Yu. Adonin
- Boreskov Institute of Catalysis SB RAS, Lavrentiev Avenue 5, 630090 Novosibirsk, Russia
| | - Matvey V. Fedin
- International Tomography Center SB RAS, Institutskaya Street 3a, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova Street 2, 630090 Novosibirsk, Russia
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15
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Takekiyo T, Miyazaki K, Watanabe Y, Uesugi Y, Tanaka S, Ishikawa Y, Yoshimura Y. Solubilization and recovery of heat-aggregated cytochrome c using alkylammonium nitrate. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111239] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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16
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Guncheva M, Ossowicz P, Janus E, Todinova S, Yancheva D. Elucidation of the effect of some cholinium amino acid ionic liquids on the thermal and the conformational stability of insulin. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.03.074] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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17
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Li D, Gao Y, Pan X, Wei D, Guo B, Yang C, Liu B. MD and DSC study of bioactive structural stability of insulin in various imidazolium ionic liquids. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.01.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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18
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19
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Singh UK, Patel R. Dynamics of Ionic Liquid-Assisted Refolding of Denatured Cytochrome c: A Study of Preferential Interactions toward Renaturation. Mol Pharm 2018; 15:2684-2697. [PMID: 29767978 DOI: 10.1021/acs.molpharmaceut.8b00212] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In vitro refolding of denatured protein and the influence of the alkyl chain on the refolding of a protein were tested using long chain imidazolium chloride salts, 1-methyl-3-octylimidazolium chloride [C8mim][Cl], and 1-decyl-3-methylimidazolium chloride [C10mim][Cl]. The horse heart cytochrome c (h-cyt c) was denatured by urea and guanidinium hydrochloride (GdnHCl), as well as by base-induced denaturation at pH 13, to provide a broad overview of the overall refolding behavior. The variation in the alkyl chain of the ionic liquids (ILs) showed a profound effect on the refolding of denatured h-cyt c. The ligand-induced refolding was correlated to understand the mechanism of the conformational stability of proteins in aqueous solutions of ILs. The results showed that the long chain ILs having the [C8mim]+ and [C10mim]+ cations promote the refolding of alkali-denatured h-cyt c. The IL having the [C10mim]+ cation efficiently refolded the alkali-denatured h-cyt c with the formation of the MG state, whereas the IL having the [C8mim]+ cation, which is known to be compatible for protein stability, shows slight refolding and forms a different transition state. The lifetime results show successful refolding of alkaline-denatured h-cyt c by both of the ILs, however, more refolding was observed in the case of [C10mim][Cl], and this was correlated with the fast and medium lifetimes (τ1 and τ2) obtained, which show an increase accompanied by an increase in secondary structure. The hydrophobic interactions plays an important role in the refolding of chemically and alkali-denatured h-cyt c by long chain imidazolium ILs. The formation of the MG state by [C10mim][Cl] was also confirmed, as some regular structure exists far below the CMC of IL. The overall results suggested that the [C10mim]+ cation bound to the unfolded h-cyt c triggers its refolding by electrostatic and hydrophobic interactions that stabilize the MG state.
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Affiliation(s)
- Upendra Kumar Singh
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences , Jamia Millia Islamia (A Central University) , New Delhi 110025 , India
| | - Rajan Patel
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences , Jamia Millia Islamia (A Central University) , New Delhi 110025 , India
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20
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Takekiyo T, Yoshimura Y. Suppression and dissolution of amyloid aggregates using ionic liquids. Biophys Rev 2018; 10:853-860. [PMID: 29696571 DOI: 10.1007/s12551-018-0421-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 04/08/2018] [Indexed: 12/22/2022] Open
Abstract
Amyloid aggregates are composed of protein fibrils with a dominant β-sheet structure, are water-insoluble, and are involved in the pathogenesis of many neurodegenerative diseases. Development of pharmaceuticals to treat these diseases and the design of recovery agents for amyloid-type inclusion bodies require the successful suppression and dissolution of such aggregates. Since ionic liquids (ILs) are composed of both a cation and anion and are known to suppress protein aggregation and to dissolve water-insoluble compounds such as cellulose; they may also have potential use as suppression/dissolution agents for amyloid aggregates. In the following review, we present the suppression and dissolution effects of ILs on amyloid aggregates so far reported. The protein-IL affinity (the ability of ILs to interact with amyloid proteins) was found to be the biochemical basis for ILs' suppression of amyloid formation, and the hydrogen-bonding basicity of ILs might be the basis for their ability to dissolve amyloid aggregates. These findings present the potential of ILs to serve as novel pharmaceuticals to treat neurodegenerative diseases and as recovery agents for various amyloid aggregates.
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Affiliation(s)
- Takahiro Takekiyo
- Department of Applied Chemistry, National Defense Academy, 1-10-20, Hashirimizu, Yokosuka, Kanagawa, 239-8686, Japan.
| | - Yukihiro Yoshimura
- Department of Applied Chemistry, National Defense Academy, 1-10-20, Hashirimizu, Yokosuka, Kanagawa, 239-8686, Japan
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21
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Sakamoto M, Ohama Y, Aoki S, Fukushi K, Mori T, Yoshimura Y, Shimizu A. Effect of Ionic Liquids on the Hatching of Artemia salina Cysts. Aust J Chem 2018. [DOI: 10.1071/ch18117] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We investigated the effect of six ionic liquids (ILs), and dimethylsulfoxide (DMSO) as a typical molecular liquid (organic solvent), on the hatching of Artemia salina cysts. The effect of an IL on the hatching of Artemia salina strongly depends on the specific combination of cation and anion. Of the ILs tested, choline acetate and choline chloride had a significantly lower toxicity. The level of inhabitation followed the order [chl][dhp] > [bmim][NO3] > [MAN][NO3] > [bmim][Ac] > DMSO > [chl][Ac] ≥ [chl][Cl].
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22
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Takekiyo T, Yoshida K, Funahashi Y, Nagata S, Abe H, Yamaguchi T, Yoshimura Y. Helix-forming ability of proteins in alkylammonium nitrate. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.08.066] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Takekiyo T, Ishikawa Y, Yoshimura Y. Cryopreservation of Proteins Using Ionic Liquids: A Case Study of Cytochrome c. J Phys Chem B 2017; 121:7614-7620. [DOI: 10.1021/acs.jpcb.7b05158] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Takahiro Takekiyo
- Department of Applied Chemistry, National Defense Academy, 1-10-20, Hashirimizu, Yokosuka,
Kanagawa 239-8686, Japan
| | - Yuka Ishikawa
- Department of Applied Chemistry, National Defense Academy, 1-10-20, Hashirimizu, Yokosuka,
Kanagawa 239-8686, Japan
| | - Yukihiro Yoshimura
- Department of Applied Chemistry, National Defense Academy, 1-10-20, Hashirimizu, Yokosuka,
Kanagawa 239-8686, Japan
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24
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Affiliation(s)
- Toshiyuki Itoh
- Department
of Chemistry and Biotechnology, Graduate School of Engineering and ‡Center for Research
on Green Sustainable Chemistry, Tottori University, 4-101 Koyama-minami, Tottori 680-8552, Japan
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25
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Sanchez-Fernandez A, Edler KJ, Arnold T, Alba Venero D, Jackson AJ. Protein conformation in pure and hydrated deep eutectic solvents. Phys Chem Chem Phys 2017; 19:8667-8670. [DOI: 10.1039/c7cp00459a] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Deep eutectic solvents as media for protein stabilisation: conformation in the absence and presence of water.
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Affiliation(s)
- A. Sanchez-Fernandez
- Department of Chemistry, University of Bath, Claverton Down
- Bath
- UK
- European Spallation Source
- Lund
| | - K. J. Edler
- Department of Chemistry, University of Bath, Claverton Down
- Bath
- UK
| | - T. Arnold
- Diamond Light Source, Harwell Campus
- Didcot
- UK
| | | | - A. J. Jackson
- European Spallation Source
- Lund
- Sweden
- Department of Physical Chemistry
- Lund University
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