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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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Darlington DS, Mahurin AN, Kapusta K, Suh E, Smith C, Jarrett E, Chism CM, Meador WE, Kelly ZC, Delcamp JH, Zhao Y, Hammer NI, Kariyawasam CS, Somarathne RP, Fitzkee NC, Tanner EEL. Selective Near-Infrared Blood Detection Driven by Ionic Liquid-Dye-Albumin Nanointeractions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:10806-10819. [PMID: 37501336 PMCID: PMC10506859 DOI: 10.1021/acs.langmuir.3c00727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Due to its abundance in blood, a great deal of research has been undertaken to develop efficient biosensors for serum albumin and provide insight into the interactions that take place between these biosensing molecules and the protein. Near-infrared (NIR, >700 nm) organic dyes have been shown to be effective biosensors of serum albumin, but their effectiveness is diminished in whole blood. Herein, it is shown that an NIR sulfonate indolizine-donor-based squaraine dye, SO3SQ, can be strengthened as a biosensor of albumin through the addition of biocompatible ionic liquids (ILs). Specifically, the IL choline glycolate (1:1), at a concentration of 160 mM, results in the enhanced fluorescence emission ("switch-on") of the dye in the presence of blood. The origin of the fluorescence enhancement was investigated via methods, including DLS, ITC, and molecular dynamics. Further, fluorescence measurements were conducted to see the impact the dye-IL system had on the fluorescence of the tryptophan residue of human serum albumin (HSA), as well as to determine its apparent association constants in relation to albumin. Circular dichroism (CD) spectroscopy was used to provide evidence that the dye-IL system does not alter the secondary structures of albumin or DNA. Our results suggest that the enhanced fluorescence of the dye in the presence of IL and blood is due to diversification of binding sites in albumin, controlled by the interaction of the IL-dye-albumin complex.
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Affiliation(s)
- Donovan S Darlington
- Department of Chemistry and Biochemistry, The University of Mississippi, University, Mississippi 38677, United States
| | - Allison N Mahurin
- Department of Chemistry and Biochemistry, The University of Mississippi, University, Mississippi 38677, United States
| | - Karina Kapusta
- Department of Chemistry and Physics, Tougaloo College, Tougaloo, Mississippi 39174, United States
| | - Ember Suh
- Department of Chemistry and Biochemistry, The University of Mississippi, University, Mississippi 38677, United States
| | - Cameron Smith
- Department of Chemistry and Biochemistry, The University of Mississippi, University, Mississippi 38677, United States
| | - Ethan Jarrett
- Department of Chemistry and Biochemistry, The University of Mississippi, University, Mississippi 38677, United States
| | - Claylee M Chism
- Department of Chemistry and Biochemistry, The University of Mississippi, University, Mississippi 38677, United States
| | - William E Meador
- Department of Chemistry and Biochemistry, The University of Mississippi, University, Mississippi 38677, United States
| | - Zakeyia C Kelly
- Department of Chemistry and Biochemistry, The University of Mississippi, University, Mississippi 38677, United States
| | - Jared H Delcamp
- Department of Chemistry and Biochemistry, The University of Mississippi, University, Mississippi 38677, United States
- Air Force Research Laboratory, Materials and Manufacturing Directorate (RXNC), Wright-Patterson AFB, 2230 Tenth Street B655, Dayton, Ohio 45433, United States
- UES, Inc., 4401 Dayton Xenia Rd, Dayton, Ohio 45432, United States
| | - Yongfeng Zhao
- Department of Chemistry, Physics and Atmospheric Sciences, Jackson State University, Jackson, Mississippi 39217, United States
| | - Nathan I Hammer
- Department of Chemistry and Biochemistry, The University of Mississippi, University, Mississippi 38677, United States
| | - Chathuri S Kariyawasam
- Department of Chemistry, Mississippi State University, Starkville, Mississippi 39762, United States
| | - Radha P Somarathne
- Department of Chemistry, Mississippi State University, Starkville, Mississippi 39762, United States
| | - Nicholas C Fitzkee
- Department of Chemistry, Mississippi State University, Starkville, Mississippi 39762, United States
| | - Eden E L Tanner
- Department of Chemistry and Biochemistry, The University of Mississippi, University, Mississippi 38677, United States
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3
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Wei B, Wu Y, Liu F, Su M, Liang H. One-pot simultaneous extraction and enzymatic hydrolysis to prepare glycyrrhetinic acid via ionic liquid-based two-phase systems. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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4
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Shmool T, Martin LK, Matthews RP, Hallett JP. Ionic Liquid-Based Strategy for Predicting Protein Aggregation Propensity and Thermodynamic Stability. JACS AU 2022; 2:2068-2080. [PMID: 36186557 PMCID: PMC9516703 DOI: 10.1021/jacsau.2c00356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 05/26/2023]
Abstract
Novel drug candidates are continuously being developed to combat the most life-threatening diseases; however, many promising protein therapeutics are dropped from the pipeline. During biological and industrial processes, protein therapeutics are exposed to various stresses such as fluctuations in temperature, solvent pH, and ionic strength. These can lead to enhanced protein aggregation propensity, one of the greatest challenges in drug development. Recently, ionic liquids (ILs), in particular, biocompatible choline chloride ([Cho]Cl)-based ILs, have been used to hinder stress-induced protein conformational changes. Herein, we develop an IL-based strategy to predict protein aggregation propensity and thermodynamic stability. We examine three key variables influencing protein misfolding: pH, ionic strength, and temperature. Using dynamic light scattering, zeta potential, and variable temperature circular dichroism measurements, we systematically evaluate the structural, thermal, and thermodynamic stability of fresh immunoglobin G4 (IgG4) antibody in water and 10, 30, and 50 wt % [Cho]Cl. Additionally, we conduct molecular dynamics simulations to examine IgG4 aggregation propensity in each system and the relative favorability of different [Cho]Cl-IgG4 packing interactions. We re-evaluate each system following 365 days of storage at 4 °C and demonstrate how to predict the thermodynamic properties and protein aggregation propensity over extended storage, even under stress conditions. We find that increasing [Cho]Cl concentration reduced IgG4 aggregation propensity both fresh and following 365 days of storage and demonstrate the potential of using our predictive IL-based strategy and formulations to radically increase protein stability and storage.
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Affiliation(s)
- Talia
A. Shmool
- Department
of Chemical Engineering, Imperial College
London, South Kensington Campus, London SW7 2AZ, U.K.
| | - Laura K. Martin
- Department
of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, U.K.
| | - Richard P. Matthews
- Department
of Chemical Engineering, Imperial College
London, South Kensington Campus, London SW7 2AZ, U.K.
| | - Jason P. Hallett
- Department
of Chemical Engineering, Imperial College
London, South Kensington Campus, London SW7 2AZ, U.K.
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5
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Behera S, Balasubramanian S. Molecular simulations explain the exceptional thermal stability, solvent tolerance and solubility of protein-polymer surfactant bioconjugates in ionic liquids. Phys Chem Chem Phys 2022; 24:21904-21915. [PMID: 36065955 DOI: 10.1039/d2cp02636h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
Proteins complexed electrostatically with polymer surfactants constitute a viscous liquid by themselves, called the solvent-free protein liquid (SFPL). A solution of SFPL in a room temperature ionic liquid (PS-IL) offers the protein hyperthermal stability, higher solubility and greater IL tolerance. A generic understanding of these protein-polymer systems is obtained herein through extensive atomistic molecular dynamics simulations of three different enzymes (lipase A, lysozyme and myoglobin) under various conditions. Along with increased intra-protein hydrogen bonding, the surfactant coating around the proteins imparts greater thermal stability, and also aids in screening protein-IL interactions, endowing them IL tolerance. The reduced surface polarity of the protein-polymer bioconjugate and hydrogen bonding between the ethylene glycol groups of the surfactant and the IL cation contribute to the facile solvation of the protein in its PS-IL form. The results presented here rationalize several experimental observations and will aid in the improved design of such hybrid materials for sustainable catalysis.
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Affiliation(s)
- Sudarshan Behera
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560 064, India.
| | - Sundaram Balasubramanian
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560 064, India.
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6
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DeStefano I, DeStefano G, Paradis NJ, Patel R, Clark AK, Gogoj H, Singh G, Jonnalagadda KS, Patel AY, Wu C, Caputo GA, Vaden TD. Thermodynamic destabilization of azurin by four different tetramethylguanidinium amino acid ionic liquids. Int J Biol Macromol 2021; 180:355-364. [PMID: 33744247 DOI: 10.1016/j.ijbiomac.2021.03.090] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/15/2021] [Accepted: 03/15/2021] [Indexed: 01/13/2023]
Abstract
The thermal unfolding of the copper redox protein azurin was studied in the presence of four different amino acid-based ionic liquids (ILs), all of which have tetramethylguanidium as cation. The anionic amino acid includes two with alcohol side chains, serine and threonine, and two with carboxylic acids, aspartate and glutamate. Control experiments showed that amino acids alone do not significantly change protein stability and pH changes anticipated by the amino acid nature have only minor effects on the protein. With the ILs, the protein is destabilized and the melting temperature is decreased. The two ILs with alcohol side chains strongly destabilize the protein while the two ILs with acid side chains have weaker effects. Unfolding enthalpy (ΔHunf°) and entropy (ΔSunf°) values, derived from fits of the unfolding data, show that some ILs increase ΔHunf°while others do not significantly change this value. All ILs, however, increase ΔSunf°. MD simulations of both the folded and unfolded protein conformations in the presence of the ILs provide insight into the different IL-protein interactions and how they affect the ΔHunf° values. The simulations also confirm that the ILs increase the unfolded state entropies which can explain the increased ΔSunf° values.
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Affiliation(s)
- Isabella DeStefano
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA
| | - Gabriella DeStefano
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA
| | - Nicholas J Paradis
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA
| | - Roshani Patel
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA
| | - Austin K Clark
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA
| | - Hunter Gogoj
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA
| | - Gurvir Singh
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA
| | - Keertana S Jonnalagadda
- Department of Biological Sciences, Rowan University, Glassboro, NJ 08028, USA; Bantivoglio Honors College, Rowan University, Glassboro, NJ 08028, USA
| | - Aashka Y Patel
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA
| | - Chun Wu
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA; Department of Molecular and Cellular Biosciences, Rowan University, Glassboro, NJ 08028, USA
| | - Gregory A Caputo
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA; Department of Molecular and Cellular Biosciences, Rowan University, Glassboro, NJ 08028, USA
| | - Timothy D Vaden
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA.
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7
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Patel AY, Jonnalagadda KS, Paradis N, Vaden TD, Wu C, Caputo GA. Effects of Ionic Liquids on Metalloproteins. Molecules 2021; 26:514. [PMID: 33478102 PMCID: PMC7835893 DOI: 10.3390/molecules26020514] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/04/2021] [Accepted: 01/08/2021] [Indexed: 01/28/2023] Open
Abstract
In the past decade, innovative protein therapies and bio-similar industries have grown rapidly. Additionally, ionic liquids (ILs) have been an area of great interest and rapid development in industrial processes over a similar timeline. Therefore, there is a pressing need to understand the structure and function of proteins in novel environments with ILs. Understanding the short-term and long-term stability of protein molecules in IL formulations will be key to using ILs for protein technologies. Similarly, ILs have been investigated as part of therapeutic delivery systems and implicated in numerous studies in which ILs impact the activity and/or stability of protein molecules. Notably, many of the proteins used in industrial applications are involved in redox chemistry, and thus often contain metal ions or metal-associated cofactors. In this review article, we focus on the current understanding of protein structure-function relationship in the presence of ILs, specifically focusing on the effect of ILs on metal containing proteins.
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Affiliation(s)
- Aashka Y. Patel
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA; (A.Y.P.); (N.P.); (T.D.V.); (C.W.)
| | | | - Nicholas Paradis
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA; (A.Y.P.); (N.P.); (T.D.V.); (C.W.)
| | - Timothy D. Vaden
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA; (A.Y.P.); (N.P.); (T.D.V.); (C.W.)
| | - Chun Wu
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA; (A.Y.P.); (N.P.); (T.D.V.); (C.W.)
- Department of Molecular and Cellular Biosciences, Rowan University, Glassboro, NJ 08028, USA
| | - Gregory A. Caputo
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA; (A.Y.P.); (N.P.); (T.D.V.); (C.W.)
- Department of Molecular and Cellular Biosciences, Rowan University, Glassboro, NJ 08028, USA
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8
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Shukla SK, Mikkola JP. Use of Ionic Liquids in Protein and DNA Chemistry. Front Chem 2020; 8:598662. [PMID: 33425856 PMCID: PMC7786294 DOI: 10.3389/fchem.2020.598662] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 12/01/2020] [Indexed: 12/12/2022] Open
Abstract
Ionic liquids (ILs) have been receiving much attention as solvents in various areas of biochemistry because of their various beneficial properties over the volatile solvents and ILs availability in myriad variants (perhaps as many as 108) owing to the possibility of paring one cation with several anions and vice-versa as well as formulations as zwitterions. Their potential as solvents lies in their tendency to offer both directional and non-directional forces toward a solute molecule. Because of these forces, ionic liquids easily undergo intermolecular interactions with a range of polar/non-polar solutes, including biomolecules such as proteins and DNA. The interaction of genomic species in aqueous/non-aqueous states assists in unraveling their structure and functioning, which have implications in various biomedical applications. The charge density of ionic liquids renders them hydrophilic and hydrophobic, which retain intact over long-range of temperatures. Their ability in stabilizing or destabilizing the 3D-structure of a protein or the double-helical structure of DNA has been assessed superior to the water and volatile organic solvents. The aptitude of an ion in influencing the structure and stability of a native protein depends on their ranking in the Hofmeister series. However, at several instances, a reverse Hofmeister ordering of ions and specific ion-solute interaction has been observed. The capability of an ionic liquid in terms of the tendency to promote the coiling/uncoiling of DNA structure is noted to rely on the basicity, electrostatic interaction, and hydrophobicity of the ionic liquid in question. Any change in the DNA's double-helical structure reflects a change in its melting temperature (T m), compared to a standard buffer solution. These changes in DNA structure have implications in biosensor design and targeted drug-delivery in biomedical applications. In the current review, we have attempted to highlight various aspects of ionic liquids that influence the structure and properties of proteins and DNA. In short, the review will address the issues related to the origin and strength of intermolecular interactions, the effect of structural components, their nature, and the influence of temperature, pH, and additives on them.
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Affiliation(s)
- Shashi Kant Shukla
- Technical Chemistry, Department of Chemistry, Chemical-Biological Centre, Umeå University, Umeå, Sweden
| | - Jyri-Pekka Mikkola
- Technical Chemistry, Department of Chemistry, Chemical-Biological Centre, Umeå University, Umeå, Sweden
- Industrial Chemistry and Reaction Engineering, Department of Chemical Engineering, Johan Gadolin Process Chemistry Centre, Åbo Akademi University, Åbo-Turku, Finland
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9
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Dasari S, Mallik BS. Conformational Free-Energy Landscapes of Alanine Dipeptide in Hydrated Ionic Liquids from Enhanced Sampling Methods. J Phys Chem B 2020; 124:6728-6737. [PMID: 32666802 DOI: 10.1021/acs.jpcb.0c05629] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Understanding the interaction of the ionic liquid (IL) with protein is vital to find the origin of the conformational changes of proteins in these alternative solvents. Here, we performed biased molecular dynamics simulations of alanine dipeptide (ADP), a widely used model for protein backbone structure, in water and two hydrated ionic liquids (ILs): 80% (w/w) 1-ethyl-3-methylimidazolium acetate ([EMIm][Ac]) and 80% (w/w) choline dihydrogen phosphate ([Cho][DHP]). We employed three different biasing methods, metadynamics (metaD), well-tempered metadynamics (WT-metaD), and adaptive biasing force (ABF), to construct the free-energy landscapes of the ADP conformations using the backbone dihedral angles (ϕ and ψ) as the collective variables. The calculations were also performed in water; the free-energy landscapes of ADP in water obtained from three methods are similar and agree well with the previously reported results. In hydrated [EMIm][Ac], α-planar conformation emerges as a minimum, which is comparable to that of α and β conformations corresponding to α-helix and β-sheet-like conformations of proteins. Investigation of corresponding conformations suggests that the imidazolium ring of [EMIm] cation is stacked with the amide bonds of ADP. Acetate anion makes hydrogen bonds with the amide hydrogens of the ADP. The amide-π stacking interaction is the driving force for α-planar conformation to become one of the minimum energy conformations in this IL, which destabilizes the protein conformation. However, α and β conformations are more stable in hydrated [Cho][DHP] compared to α-planar and β-planar conformations; therefore, this IL stabilizes the protein conformation. These findings are in good correlation with the previous study of proteins in these ILs. Our study helps to understand the interaction of proteins with the ionic entities and their stability in ILs.
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Affiliation(s)
- Sathish Dasari
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy 502285, Telangana, India
| | - Bhabani S Mallik
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy 502285, Telangana, India
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10
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Ghanta KP, Pal T, Mondal S, Bandyopadhyay S. Microscopic Understanding of the Effect of Ionic Liquid on Protein from Molecular Simulation Studies. J Phys Chem B 2020; 124:3909-3921. [PMID: 32302476 DOI: 10.1021/acs.jpcb.0c02001] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
We have performed molecular dynamics (MD) simulations of the protein α-lactalbumin in aqueous solution containing the ionic liquid (IL) 1-butyl-3-methyl imidazolium tetrafluoroborate ([BMIM][BF4]) as the cosolvent at different concentrations. Attempts have been made to obtain quantitative understanding of the effects of the IL on the conformational features of the protein as well as the distributions of the IL and water around it. The calculations revealed enhanced rigidity of the protein with reduced conformational fluctuations and increasingly correlated local motions in the presence of the IL. Nonuniform relative population of the BMIM+ and BF4- ions at the protein surface with respect to that in the bulk solution has been observed. It is demonstrated that exchange of water by the IL around the protein results in rearrangement of the hydrogen bond network at the interface with breaking of protein-water hydrogen bonds and formation of protein-IL hydrogen bonds. Importantly, it is found that the protein forms increased number of stronger salt bridges in the presence of IL. This shows that the formation of a greater number of such stronger salt bridges is the origin behind the enhanced rigidity of the protein in the presence of the IL.
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Affiliation(s)
- Krishna Prasad Ghanta
- Molecular Modeling Laboratory, Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
| | - Tamisra Pal
- Centre for Computational and Data Sciences, Indian Institute of Technology, Kharagpur 721302, India
| | - Sandip Mondal
- Molecular Modeling Laboratory, Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
| | - Sanjoy Bandyopadhyay
- Molecular Modeling Laboratory, Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India.,Centre for Computational and Data Sciences, Indian Institute of Technology, Kharagpur 721302, India
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11
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Palanisamy K, Prakash M, Rajapandian V. Combined DFT and MD simulation studies of protein stability on imidazolium–water (ImH+Wn) clusters with aromatic amino acids. NEW J CHEM 2020. [DOI: 10.1039/d0nj03085f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The hydrated clusters of protonated imidazole (ImH+) can induce protein denaturation through various kinds of monovalent interactions such as cation···π (stacking), N–H⋯π (T-shaped) and water-mediated O–H⋯O H-bonds.
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Affiliation(s)
- Kandhan Palanisamy
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar
- Kattankulathur-603203
- India
| | - Muthuramalingam Prakash
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar
- Kattankulathur-603203
- India
| | - Varatharaj Rajapandian
- Department of Chemistry, Sri Ramakrishna Mission Vidyalaya College of Arts and Science
- Coimbatore-641020
- India
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12
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Ghanbari-Ardestani S, Khojasteh-Band S, Zaboli M, Hassani Z, Mortezavi M, Mahani M, Torkzadeh-Mahani M. The effect of different percentages of triethanolammonium butyrate ionic liquid on the structure and activity of urate oxidase: Molecular docking, molecular dynamics simulation, and experimental study. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111318] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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13
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Thoppil AA, Chennuri BK, Gardas RL. Insights into the structural changes of bovine serum albumin in ethanolammonium laurate based surface active ionic liquids. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111229] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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14
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Acharyya A, DiGiuseppi D, Stinger BL, Schweitzer-Stenner R, Vaden TD. Structural Destabilization of Azurin by Imidazolium Chloride Ionic Liquids in Aqueous Solution. J Phys Chem B 2019; 123:6933-6945. [DOI: 10.1021/acs.jpcb.9b04113] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Arusha Acharyya
- Department of Chemistry, University of Pennsylvania, 231 S. 34 Street, Philadelphia, Pennsylvania 19104, United States
| | - David DiGiuseppi
- Department of Chemistry, Drexel University, 32 S. 32nd Street, Philadelphia, Pennsylvania 19104, United States
| | - Brittany L. Stinger
- Department of Chemistry and Biochemistry, Rowan University, 201 Mullica Hill Road, Glassboro, New Jersey 08028, United States
| | - Reinhard Schweitzer-Stenner
- Department of Chemistry, Drexel University, 32 S. 32nd Street, Philadelphia, Pennsylvania 19104, United States
| | - Timothy D. Vaden
- Department of Chemistry and Biochemistry, Rowan University, 201 Mullica Hill Road, Glassboro, New Jersey 08028, United States
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Tong J, Guo Y, Huo F, Xie X, He H, von Solms N, Liang X, Zhang S. Developing a Coarse-Grained Model for 1-Alkyl-3-methyl-imidazolium Chloride Ionic Liquids. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b03665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiahuan Tong
- Department of Chemical & Biochemical Engineering, Technical University of Denmark, DK 2800 Kgs., Lyngby, Denmark
- Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- College of Mathematics and Physics, Bohai University, Jinzhou 121013, P. R. China
| | - Yandong Guo
- College of Mathematics and Physics, Bohai University, Jinzhou 121013, P. R. China
| | - Feng Huo
- Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Xiaodong Xie
- Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
- College of Mathematics and Physics, Bohai University, Jinzhou 121013, P. R. China
| | - Hongyan He
- Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Nicolas von Solms
- Department of Chemical & Biochemical Engineering, Technical University of Denmark, DK 2800 Kgs., Lyngby, Denmark
| | - Xiaodong Liang
- Department of Chemical & Biochemical Engineering, Technical University of Denmark, DK 2800 Kgs., Lyngby, Denmark
| | - Suojiang Zhang
- Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
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16
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Kohn EM, Lee JY, Calabro A, Vaden TD, Caputo GA. Heme Dissociation from Myoglobin in the Presence of the Zwitterionic Detergent N, N-Dimethyl- N-Dodecylglycine Betaine: Effects of Ionic Liquids. Biomolecules 2018; 8:biom8040126. [PMID: 30380655 PMCID: PMC6315634 DOI: 10.3390/biom8040126] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 10/23/2018] [Accepted: 10/24/2018] [Indexed: 01/24/2023] Open
Abstract
We have investigated myoglobin protein denaturation using the zwitterionic detergent Empigen BB (EBB, N,N-Dimethyl-N-dodecylglycine betaine). A combination of absorbance, fluorescence, and circular dichroism spectroscopic measurements elucidated the protein denaturation and heme dissociation from myoglobin. The results indicated that Empigen BB was not able to fully denature the myoglobin structure, but apparently can induce the dissociation of the heme group from the protein. This provides a way to estimate the heme binding free energy, ΔGdissociation. As ionic liquids (ILs) have been shown to perturb the myoglobin protein, we have investigated the effects of the ILs 1-butyl-3-methylimidazolium chloride (BMICl), 1-ethyl-3-methylimidazolium acetate (EMIAc), and 1-butyl-3-methylimidazolium tetrafluoroborate (BMIBF4) in aqueous solution on the ΔGdissociation values. Absorbance experiments show the ILs had minimal effect on ΔGdissociation values when compared to controls. Fluorescence and circular dichroism data confirm the ILs have no effect on heme dissociation, demonstrating that low concentrations ILs do not impact the heme dissociation from the protein and do not significantly denature myoglobin on their own or in combination with EBB. These results provide important data for future studies of the mechanism of IL-mediated protein stabilization/destabilization and biocompatibility studies.
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Affiliation(s)
- Eric M Kohn
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA.
- Bantivoglio Honors College, Rowan University, Glassboro, NJ 08028, USA.
| | - Joshua Y Lee
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA.
- Bantivoglio Honors College, Rowan University, Glassboro, NJ 08028, USA.
| | - Anthony Calabro
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA.
| | - Timothy D Vaden
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA.
| | - Gregory A Caputo
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA.
- Department of Molecular & Cellular Biosciences, Rowan University, Glassboro, NJ 08028, USA.
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17
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Janati-Fard F, Housaindokht MR, Monhemi H, Esmaeili AA, Nakhaei Pour A. The influence of two imidazolium-based ionic liquids on the structure and activity of glucose oxidase: Experimental and theoretical studies. Int J Biol Macromol 2018; 114:656-665. [DOI: 10.1016/j.ijbiomac.2018.03.083] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 02/27/2018] [Accepted: 03/17/2018] [Indexed: 01/27/2023]
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18
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Uralcan B, Kim SB, Markwalter CE, Prud’homme RK, Debenedetti PG. A Computational Study of the Ionic Liquid-Induced Destabilization of the Miniprotein Trp-Cage. J Phys Chem B 2018; 122:5707-5715. [DOI: 10.1021/acs.jpcb.8b01722] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Betul Uralcan
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Sang Beom Kim
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Chester E. Markwalter
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Robert K. Prud’homme
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Pablo G. Debenedetti
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
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19
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Zhang H, Wang Y, Zhu H, Fei Z, Cao J. Binding mechanism of triclocarban with human serum albumin: Effect on the conformation and activity of the model transport protein. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.10.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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20
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Matias SC, Lourenço NMT, Fonseca LJP, Cordas CM. Comparative Electrochemical Behavior of Cytochrome c
on Aqueous Solutions Containing Choline-Based Room Temperature Ionic Liquids. ChemistrySelect 2017. [DOI: 10.1002/slct.201702052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Sara C. Matias
- iBB - Institute for Bioengineering and Biosciences; Department of Bioengineering; Instituto Superior Técnico; Universidade de Lisboa; Avenida Rovisco Pais 1049-001 Lisbon Portugal
| | - Nuno M. T. Lourenço
- iBB - Institute for Bioengineering and Biosciences; Department of Bioengineering; Instituto Superior Técnico; Universidade de Lisboa; Avenida Rovisco Pais 1049-001 Lisbon Portugal
| | - Luis J. P. Fonseca
- iBB - Institute for Bioengineering and Biosciences; Department of Bioengineering; Instituto Superior Técnico; Universidade de Lisboa; Avenida Rovisco Pais 1049-001 Lisbon Portugal
| | - Cristina M. Cordas
- UCIBIO, REQUIMTE; Departamento de Química; Faculdade de Ciência e Tecnologia; Universidade Nova de Lisboa; 2819-516 Caparica Portugal
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21
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Smiatek J. Aqueous ionic liquids and their effects on protein structures: an overview on recent theoretical and experimental results. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2017; 29:233001. [PMID: 28398214 DOI: 10.1088/1361-648x/aa6c9d] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Ionic liquids (ILs) are used in a variety of technological and biological applications. Recent experimental and simulation results reveal the influence of aqueous ionic liquids on the stability of protein and enzyme structures. Depending on different parameters like the concentration and the ion composition, one can observe distinct stabilization or denaturation mechanisms for various ILs. In this review, we summarize the main findings and discuss the implications with regard to molecular theories of solutions and specific ion effects. A preferential binding model is introduced in order to discuss protein-IL effects from a statistical mechanics perspective. The value of the preferential binding coefficient determines the strength of the ion influence and indicates a shift of the chemical equilibrium either to the native or the denatured state of the protein. We highlight the role of water in order to explain the self-association behavior of the IL species and discuss recent experimental and simulation results in the light of the observed binding effects.
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Affiliation(s)
- Jens Smiatek
- Institute for Computational Physics, University of Stuttgart, Allmandring 3, D-70569 Stuttgart, Germany
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22
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Borrell KL, Cancglin C, Stinger BL, DeFrates KG, Caputo GA, Wu C, Vaden TD. An Experimental and Molecular Dynamics Study of Red Fluorescent Protein mCherry in Novel Aqueous Amino Acid Ionic Liquids. J Phys Chem B 2017; 121:4823-4832. [PMID: 28425717 DOI: 10.1021/acs.jpcb.7b03582] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The search for biocompatible ionic liquids (ILs) with novel biochemical and biomedical applications has recently gained greater attention. In this report, we characterize the effects of two novel amino acid-based aqueous ILs composed of tetramethylguanidinium (TMG) and amino acids on the structure and stability of a widely used red fluorescent protein (mCherry). Our experimental data shows that while the aspartic acid-based IL (TMGAsp) has effects similar to previously studied conventional ILs (BMIBF4, EMIAc, and TMGAc), the alanine-based IL (TMGAla) has a much stronger destabilization effect on the protein structure. Addition of 0.30 M TMGAla to mCherry decreases the unfolding temperature from 83 to 60 °C. Even at 25 °C, TMGAla results in a blue shift of the mCherry absorbance and fluorescence peaks and an increased Stokes shift. Molecular dynamics simulations show that the chromophore conformation and its interaction with mCherry with TMGAla are changed relative to those with TMGAsp or in the absence of ILs. Protein-ILs contact analysis indicates that the mCherry-Asp interactions are hydrophilic but the (fewer) mCherry-Ala interactions are more hydrophobic and may modulate the TMG interaction with the protein. Hence, the anion hydrophobicity may explain the special TMGAla destabilization of mCherry.
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Affiliation(s)
- Kelsey L Borrell
- Department of Chemistry and Biochemistry amd ‡Department of Biomedical and Translational Sciences, Rowan University , 201 Mullica Hill Road, Glassboro, New Jersey 08028, United States
| | - Christine Cancglin
- Department of Chemistry and Biochemistry amd ‡Department of Biomedical and Translational Sciences, Rowan University , 201 Mullica Hill Road, Glassboro, New Jersey 08028, United States
| | - Brittany L Stinger
- Department of Chemistry and Biochemistry amd ‡Department of Biomedical and Translational Sciences, Rowan University , 201 Mullica Hill Road, Glassboro, New Jersey 08028, United States
| | - Kelsey G DeFrates
- Department of Chemistry and Biochemistry amd ‡Department of Biomedical and Translational Sciences, Rowan University , 201 Mullica Hill Road, Glassboro, New Jersey 08028, United States
| | - Gregory A Caputo
- Department of Chemistry and Biochemistry amd ‡Department of Biomedical and Translational Sciences, Rowan University , 201 Mullica Hill Road, Glassboro, New Jersey 08028, United States
| | - Chun Wu
- Department of Chemistry and Biochemistry amd ‡Department of Biomedical and Translational Sciences, Rowan University , 201 Mullica Hill Road, Glassboro, New Jersey 08028, United States
| | - Timothy D Vaden
- Department of Chemistry and Biochemistry amd ‡Department of Biomedical and Translational Sciences, Rowan University , 201 Mullica Hill Road, Glassboro, New Jersey 08028, United States
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