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Garg M, Sharma D, Kaur G, Rawat J, Goyal B, Kumar S, Kumar R. Factor defining the effects of tetraalkylammonium chloride on stability, folding, and dynamics of horse cytochrome c. Int J Biol Macromol 2024; 276:133713. [PMID: 38986993 DOI: 10.1016/j.ijbiomac.2024.133713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 07/04/2024] [Accepted: 07/05/2024] [Indexed: 07/12/2024]
Abstract
This article describes the molecular mechanism by which tetraalkylammonium chloride ([R4N]Cl: R- = methyl (Me), ethyl (Et), propyl (Pr),butyl (Bu)) modulates the stability, folding, and dynamics of cytochrome c (Cyt c). Analysis of [R4N]Cl effects on thermal/chemical denaturations, millisecond refolding/unfolding kinetics, and slow CO-association kinetics of Cyt c without and with denaturant providing some significant results: (i) [R4N]Cl decreasing the unfolding free energy estimated by thermodynamic and kinetic analysis of thermal/chemical denaturation curves and kinetic chevrons (Log kobs-[GdmCl]) of Cyt c, respectively (ii) hydrophobicity of R-group of [R4N]Cl, preferential inclusion of [R4N]Cl at the protein surface, and destabilizing enthalpic attractive interactions of [Me4N]Cl and steric entropic interactions of [Et4N]Cl,[Pr4N]Cl and [Bu4N]Cl with protein contribute to [R4N]Cl-induced decrease thermodynamic stability of Cyt c (iii) [R4N]Cl exhibits an additive effect with denaturant to decrease thermodynamic stability and refolding rates of Cyt c (iv) low concentrations of [R4N]Cl (≤ 0.5 M) constrain the motional dynamics while the higher concentrations (>0.75 M [R4N]Cl) enhance the structural-fluctuations that denture protein (v) hydrophobicity of R-group of [R4N]Cl alters the [denaturant]-dependent conformational stability, refolding-unfolding kinetics, and CO-association kinetics of Cyt c. Furthermore, the MD simulations depicted that the addition of 1.0 M of [R4N]Cl increased the conformational fluctuations in Cyt c leading to decreased structural stability in the order [Me4N]Cl < [Et4N]Cl < [Pr4N]Cl < [Bu4N]Cl consistent with the experimental results.
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Affiliation(s)
- Mansi Garg
- Department of Chemistry, Central University of Punjab, Bathinda 151001, India
| | - Deepak Sharma
- Council of Scientific and Industrial Research-Institute of Microbial Technology, Sector 39A, Academy of Scientific & Innovative Research, Chandigarh, India
| | - Gurmeet Kaur
- Department of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala 147004, India
| | - Jayanti Rawat
- Department of Chemistry, Central University of Punjab, Bathinda 151001, India
| | - Bhupesh Goyal
- Department of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala 147004, India
| | - Sumit Kumar
- Department of Chemistry, Central University of Punjab, Bathinda 151001, India
| | - Rajesh Kumar
- Department of Chemistry, Central University of Punjab, Bathinda 151001, India.
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2
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Borotto NB, Richards TK. Rapid Online Oxidation of Proteins and Peptides via Electrospray-Accelerated Ozonation. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2022; 33:2078-2086. [PMID: 36194498 DOI: 10.1021/jasms.2c00182] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Mass spectrometry-based analyses of protein conformation continue to grow in utilization due their speed, low sample requirements, and applicability to most protein systems. These techniques typically rely on chemical derivatization of proteins and as with all label-based analyses must ensure the integrity of the protein conformation throughout the duration of the labeling reaction. Hydroxyl radical footprinting of proteins and the recently developed fast fluoroalkylation of proteins attempt to bypass this consideration via rapid reactions that occur on time scales faster than protein folding, but they often require microfluidic setups or electromagnetic radiation sources. In this work, we demonstrate that ozonation of proteins and peptides, which normally occurs in the second to minute time scales, can be accelerated to the submillisecond to millisecond time scale with an electrospray ionization source. This rapid ozonation results in selective labeling of tryptophan and methionine residues. When applied to cytochrome C and carbonic anhydrase, this labeling technique is sensitive to solution conditions and correlates with solution-phase analyses of conformation. While significant work is still needed to characterize this fast chemical labeling strategy, it requires no complicated sample handling, electromagnetic radiation sources, or microfluidic systems outside of the electrospray source and may represent a facile alternative to other rapid labeling technologies that are utilized today.
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Affiliation(s)
- Nicholas B Borotto
- Department of Chemistry, University of Nevada, 1664 N. Virginia Street, Reno, Nevada 89557, United States
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3
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Ionic liquids as protein stabilizers for biological and biomedical applications: A review. Biotechnol Adv 2022; 61:108055. [DOI: 10.1016/j.biotechadv.2022.108055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/13/2022] [Accepted: 10/23/2022] [Indexed: 11/22/2022]
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4
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Garg M, Sharma D, Kumar R. Analysis of the effect of 1-Allyl-3-Methylimidazolium chloride on thermodynamic stability, folding kinetics, and motional dynamics of horse cytochrome c. Biophys Chem 2022; 290:106892. [PMID: 36115294 DOI: 10.1016/j.bpc.2022.106892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 09/03/2022] [Accepted: 09/04/2022] [Indexed: 11/02/2022]
Abstract
1-allyl-3-methylimidazolium chloride (AMIMCl) acts as a potential green solvent for proteins. The present work provides a possible pathway by which the structural, kinetic, thermodynamic, and folding properties of horse cytochrome c (cyt c) are affected in green aqueous-AMIMCl systems. Analysis of the effect of AMIMCl on thermodynamic stability, refolding/unfolding kinetics, and motional dynamics of cyt c provided important information, (i) AMIMCl decreases the thermodynamic stability of reduced cyt c and also strengthens the guanidinium chloride (GdmCl)-mediated decrease in thermodynamic stability of protein, (ii) AMIMCl reduces the thermal-fluctuation of Met80-containing omega-loop of natively-folded compact state of carbonmonoxycytochrome c (MCO-state) due to polyfunctional interactions between the AMIM+ and different groups of protein, (iii) AMIMCl shifts the kinetic chevron plot, ln kobs[GdmCl] to the lower concentration of GdmCl, (iv) AMIMCl shifts the refolding and unfolding limps to vertically downwards and upwards, respectively, and (v) AMIMCl reducing the unfolding free energy estimated by both thermodynamic and kinetic analysis.
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Affiliation(s)
- Mansi Garg
- Department of Chemistry, Central University of Punjab, Bathinda 151001, India
| | - Deepak Sharma
- Council of Scientific and Industrial Research- Institute of Microbial Technology, Sector 39A, Chandigarh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
| | - Rajesh Kumar
- Department of Chemistry, Central University of Punjab, Bathinda 151001, India.
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5
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Tarannum A, Rao JR, Fathima NN. Insights into protein-ionic liquid interaction: A comprehensive overview on theoretical and experimental approaches. Int J Biol Macromol 2022; 209:498-505. [PMID: 35413321 DOI: 10.1016/j.ijbiomac.2022.04.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 03/29/2022] [Accepted: 04/06/2022] [Indexed: 01/19/2023]
Abstract
Owing to highly tunable nature, ionic liquids are nesting stance in the scientific community for a wide variety of applications ranging from electrochemistry to product purification, from chemical and biomedical applications to biotechnological interventions and proteomics. Proteins are unstable in its native form and several attempts have been made to stabilize them by addition of various additives. This review focusses on the studies conducted to improve protein stability with ionic liquids along with an emphasis on the mechanism of interaction. This review also specifies and discusses about the brief introduction to ionic liquids, evolution of first-, second-, and third generation of liquids over the years and their selection criterion and applications. Though, there are several elegant reviews available on proteins-ionic liquids interaction, this review systematically highlights the effect of ionic liquids viz., imidazolium, ammonium, phosphonium and choline-based ionic liquids (amino acid-based anions & classical anions) on fibrous proteins viz., collagen and keratin and globular proteins viz., bovine serum albumin and cytochrome c. Thus, this review elaborates the thorough investigations conducted to explore the stabilizing properties of ionic liquids over fibrous and globular proteins.
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Affiliation(s)
- Aafiya Tarannum
- Inorganic and Physical Chemistry Laboratory, CSIR-Central Leather Research Institute, Sardar Patel Road, Adyar, Chennai - 600 020, India
| | - J Raghava Rao
- Inorganic and Physical Chemistry Laboratory, CSIR-Central Leather Research Institute, Sardar Patel Road, Adyar, Chennai - 600 020, India
| | - N Nishad Fathima
- Inorganic and Physical Chemistry Laboratory, CSIR-Central Leather Research Institute, Sardar Patel Road, Adyar, Chennai - 600 020, India.
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6
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Kushwaha P, Prabhu NP. Imidazolium-based ionic liquids with increasing alkyl chain length of cations decrease the stability and fibrillation propensity of lysozyme. NEW J CHEM 2022. [DOI: 10.1039/d2nj00559j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Imidazolium ionic liquids with longer alkyl side chains show a larger destabilization effect on lysozyme. Increased hydrophobicity of the IL increases its binding affinity and inhibits the fibril formation of lysozyme.
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Affiliation(s)
- Pratibha Kushwaha
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Hyderabad – 500 046, India
| | - N. Prakash Prabhu
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Hyderabad – 500 046, India
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Patil KR, Patil SK, Shaikh VR, Dagade DH, Patil KJ. Studies of osmotic and activity coefficient properties of aqueous solutions of triethylammonium formate and triethylammonium glycolate protic ionic liquids at 298.15 K. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115143] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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8
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Delinois LJ, Peón H, Villalobos-Santos JC, Ramírez-Paz J, Miller J, Griebenow KH, Tinoco AD. A Cytochrome c-Chlorotoxin Hybrid Protein as a Possible Antiglioma Drug. ChemMedChem 2020; 15:2185-2192. [PMID: 32918396 PMCID: PMC7722079 DOI: 10.1002/cmdc.202000373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 09/02/2020] [Indexed: 11/06/2022]
Abstract
Malignant gliomas are the most lethal form of primary brain tumors. Despite advances in cancer therapy, the prognosis of glioma patients has remained poor. Cytochrome c (Cytc), an endogenous heme-based protein, holds tremendous potential to treat gliomas because of its innate capacity to trigger apoptosis. To this end, a hybrid cytochrome c-chlorotoxin (Cytc-CTX) protein was biosynthesized to enable cellular uptake of the cell impenetrable Cytc using CTX transporters. A nucleotide sequence containing 1 : 1 Cytc and CTX was constructed and separated by a hexahistidine-tag and an enterokinase cleavage site. The sequence was cloned into a pBTR1 plasmid, expressed in Escherichia coli, purified via 2-dimensional chromatography. The identity and size of the protein were determined by Western blot and mass spectrometry. Cytc in this soluble hybrid protein has similar structure and stability as human Cytc and the hybrid protein is endocytosed into a glioma cell line, while displaying potent cytotoxicity and a favorable therapeutic index. Its facile, low-cost, and high yield synthesis, biocompatibility, and robustness suggest that the hybrid protein is a promising candidate for antiglioma drug evaluation.
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Affiliation(s)
- Louis J Delinois
- Chemistry Department, Faculty of Natural Sciences of the University of Puerto Rico at Río Piedras, San Juan, Puerto Rico, 00925, USA
| | - Harold Peón
- Academia del Perpetuo Socorro High School, San Juan, Puerto Rico, 00907, USA
| | - Juan C Villalobos-Santos
- Biology Department, Faculty of Natural Sciences of the University of Puerto Rico at Río Piedras, San Juan, Puerto Rico, 00925, USA
| | - Josell Ramírez-Paz
- Chemistry Department, Faculty of Natural Sciences of the University of Puerto Rico at Río Piedras, San Juan, Puerto Rico, 00925, USA
| | - Jennifer Miller
- Chemistry Department, Faculty of Natural Sciences of the University of Puerto Rico at Río Piedras, San Juan, Puerto Rico, 00925, USA
| | - Kai H Griebenow
- Chemistry Department, Faculty of Natural Sciences of the University of Puerto Rico at Río Piedras, San Juan, Puerto Rico, 00925, USA
| | - Arthur D Tinoco
- Chemistry Department, Faculty of Natural Sciences of the University of Puerto Rico at Río Piedras, San Juan, Puerto Rico, 00925, USA
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9
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Effect of imidazolium based ionic liquids on CO-association dynamics and thermodynamic stability of Ferrocytochrome c. Biophys Chem 2020; 268:106497. [PMID: 33212391 DOI: 10.1016/j.bpc.2020.106497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 11/01/2020] [Accepted: 11/01/2020] [Indexed: 11/20/2022]
Abstract
Analysis of kinetic and thermodynamic parameters measured for CO-association reaction of Ferrocytochrome c (Ferrocyt c) under variable concentrations of 1-butyl-3-methylimidazolium with varying anion ([Bmim]X) (X = Cl-, I-, Br-, HSO4-) at pH 7 revealed that the low concentration of [Bmim]X (≤0.5 M) constrains the CO-association dynamics of Ferrocyt c and typically follows the order: [Bmim]HSO4 > [Bmim]Cl > [Bmim]Br > [Bmim]I. At relatively higher concentrations (>0.5), the chaotropic action of [Bmim]+ dominates which consequently increases the thermal-fluctuations responsible to denature the protein and thus accelerates the speed of CO-association reaction. Analysis of thermal denaturation curves of Ferrocyt c measured at different concentrations of [Bmim]X revealed that the [Bmim]X decreases the thermodynamic stability of protein and typically follows the order: [Bmim]I > [Bmim]Br > [Bmim]Cl > [Bmim]CH3COO > [Bmim]HSO4, demonstrating that the effect of [Bmim]X on thermodynamic stability of protein is not in accordance to Hofmeister series effect of anions because instead of increasing the kosmotropic anion carrying [Bmim]X ([Bmim]CH3COO and [Bmim]HSO4) also decreases the thermodynamic stability of protein.
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10
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Pabbathi A, Samanta A. On the Stability and Conformational Dynamics of Cytochrome c in Ammonium Ionic Liquids. J Phys Chem B 2020; 124:8132-8140. [PMID: 32830967 DOI: 10.1021/acs.jpcb.0c05633] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Owing to their potential applications in the extraction, purification, and preservation of biomolecules and biocatalysis, ionic liquids (ILs) have gained great attention in biotechnology. Although it is known that the structure and dynamics of proteins in ILs depend on the nature of both proteins and ILs, the biophysical mechanism governing the protein-IL interaction, which determines the stability of proteins or the activity of an enzyme in these nonconventional media, is yet to be understood clearly. Herein, we study the effect of two ammonium ILs, triethylammonium dihydrogen phosphate (TEAP) and tributylammonium dihydrogen phosphate (TBAP), on the stability and conformational dynamics of cytochrome c (Cyt c) in its native and unfolded states, employing primarily the single molecule-based fluorescence correlation spectroscopy (FCS) technique. The results show that the native structure of Cyt c is not significantly altered by TEAP, but the tertiary structure is perturbed to a great extent by TBAP, which comprises a longer alkyl chain. Fluctuations of the fluorescence intensity of Alexa488 dye-labeled Cyt c in FCS measurements reveal conformational dynamics (67 ± 10 μs) in the native state of Cyt c that is accelerated in the presence of both ILs but not affected when Cyt c is in its unfolded state. The present findings demonstrate how the stability of this protein can be modulated by using ammonium ILs of different alkyl chain lengths.
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Affiliation(s)
- Ashok Pabbathi
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | - Anunay Samanta
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
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11
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Attri P, Choi S, Kim M, Shiratani M, Cho AE, Lee W. Influence of alkyl chain substitution of ammonium ionic liquids on the activity and stability of tobacco etch virus protease. Int J Biol Macromol 2020; 155:439-446. [DOI: 10.1016/j.ijbiomac.2020.03.175] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 03/19/2020] [Accepted: 03/20/2020] [Indexed: 02/06/2023]
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12
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A biophysical strategy to examine the impact of newly synthesized polymerizable ammonium-based ionic liquids on the structural stability and proteolytic activity of stem bromelain. Int J Biol Macromol 2020; 151:957-966. [DOI: 10.1016/j.ijbiomac.2019.10.208] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 10/14/2019] [Accepted: 10/24/2019] [Indexed: 11/23/2022]
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13
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Li M, He Y, Meng H, Dong Y, Shang Y, Liu H, Qu Z, Liu Y. Multiple effects of sodium dodecyl sulfate on chromogenic catalysis of tetramethylbenzidine with horseradish peroxidase. J DISPER SCI TECHNOL 2019. [DOI: 10.1080/01932691.2019.1702050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Meng Li
- Key Laboratory of Cosmetic, China National Light Industry, School of Science, Beijing Technology and Business University, Beijing, China
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Yifan He
- Key Laboratory of Cosmetic, China National Light Industry, School of Science, Beijing Technology and Business University, Beijing, China
| | - Hong Meng
- Key Laboratory of Cosmetic, China National Light Industry, School of Science, Beijing Technology and Business University, Beijing, China
| | - Yinmao Dong
- Key Laboratory of Cosmetic, China National Light Industry, School of Science, Beijing Technology and Business University, Beijing, China
| | - Yazhuo Shang
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Honglai Liu
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Zhaohui Qu
- Nutri-Woods Bio-Tech (Beijing) Co., Ltd, Beijing, China
| | - Youting Liu
- Nutri-Woods Bio-Tech (Beijing) Co., Ltd, Beijing, China
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14
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Kumar A, Bhakuni K, Venkatesu P. Strategic planning of proteins in ionic liquids: future solvents for the enhanced stability of proteins against multiple stresses. Phys Chem Chem Phys 2019; 21:23269-23282. [PMID: 31621726 DOI: 10.1039/c9cp04772g] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Ionic liquids (ILs) present a vast number of solvents capable of replacing toxic organic solvents in chemical, biotechnology and biomedical applications. ILs are inexpensive and environmentally friendly as the materials can be recycled conveniently. Chemists use a variety of cation and anion combinations to produce an IL that fits the requirements of the sustainable future through the pursuit of greener chemical processes. As such, the development of various types of ILs has been recognized as the emergence of environmentally friendly solvents to attain enhanced protein stability in vitro. The literature survey reveals that there exist a large number of scholarly articles as well as elegant reviews on protein stability in ILs. Biomolecules have adapted to antagonistic environmental stresses that normally denature proteins, and the mechanism of adaptation that protects the cellular components against denaturation involves the intracellular concentration of co-solvents. In this regard, recent experimental results distinctly demonstrated that ILs are stabilizing proteins against denaturing stresses, and their presence in the cells does not alter protein functional activities. However, a review focusing particularly on the refolding and counteracting effects of the ILs against denatured proteins by multiple stresses is still missing. This perspective unveils the studies that have been conducted to improve protein stabilities with ILs as well as the refolding and counteracting abilities of these ILs against the denatured proteins under the influence of multiple stresses. We believe that ILs can provide significant environmental and economic advantages for biochemical processes in the near future. Essentially, numerous investigations are required to allow us to further explore the stabilizing properties of ILs over proteins.
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Affiliation(s)
- Awanish Kumar
- Department of Chemistry, University of Delhi, Delhi-110 007, India.
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15
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Chen Z, Li Z, Ma X, Xu L, Wang Y, Zhang S. Aqueous-phase green synthesis of formate-based ionic liquids and their thermophysical properties. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.01.141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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16
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Bhakuni K, Bisht M, Venkatesu P, Mondal D. Designing biological fluid inspired molecularly crowded ionic liquid media as a sustainable packaging platform for cytochrome c. Chem Commun (Camb) 2019; 55:5747-5750. [DOI: 10.1039/c9cc02340b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The present study demonstrated biological fluid inspired design of molecularly crowded IL media and disclosed an innovative and sustainable way for the packaging of Cyt c with enhanced activity and stability.
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Affiliation(s)
| | - Meena Bisht
- Department of Chemistry
- University of Delhi
- India
- Departamento de Química
- Universidade de Aveiro
| | | | - Dibyendu Mondal
- Centre for Nano & Material Sciences
- JAIN (deemed to be University)
- Jain Global Campus
- Bangalore-562112
- India
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17
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Mamashli F, Badraghi J, Delavari B, Lanjanian H, Sabbaghian M, Hosseini M, Saboury AA. Improvement of versatile peroxidase activity and stability by a cholinium-based ionic liquid. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.09.128] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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18
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Kumari M, Singh UK, Beg I, Alanazi AM, Khan AA, Patel R. Effect of cations and anions of ionic liquids on the stability and activity of lysozyme: Concentration and temperature effect. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.09.075] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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19
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Celik S, Albayrak AT, Akyuz S, E. Ozel A. Molecular modelling and vibrational investigations of ammonium-based ionic liquid (CLTOAB). J Biomol Struct Dyn 2018; 37:2515-2526. [DOI: 10.1080/07391102.2018.1495578] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Sefa Celik
- Electrical-Electronics Engineering Department, Engineering Faculty, Istanbul University - Cerrahpasa, Istanbul, Turkey
| | - Ali Tugrul Albayrak
- Chemical Engineering Department, Engineering Faculty, Istanbul University - Cerrahpasa, Istanbul, Turkey
| | - Sevim Akyuz
- Physics Department, Science and Letters Faculty, Istanbul Kultur University, Atakoy Campus, Istanbul, Turkey
| | - Aysen E. Ozel
- Physics Department, Science Faculty, Istanbul University, Istanbul, Turkey
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Quanten T, De Mayaer T, Shestakova P, Parac-Vogt TN. Selectivity and Reactivity of Zr IV and Ce IV Substituted Keggin Type Polyoxometalates Toward Cytochrome c in Surfactant Solutions. Front Chem 2018; 6:372. [PMID: 30211153 PMCID: PMC6121075 DOI: 10.3389/fchem.2018.00372] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 08/02/2018] [Indexed: 12/15/2022] Open
Abstract
In this paper we investigate the effect of three different types of surfactants, on the hydrolysis of Cytochrome c (Cyt c), a predominantly α helical protein containing a heme group, promoted by [Ce(α PW11O39)2]10- (CeK) and [Zr(α PW11O39)2]10- (ZrK) polyoxometalates. In the presence of SDS, Zw3 12, or CHAPS surfactants, which are commonly used for solubilizing hydrophobic proteins, the specificity of CeK or ZrK toward hydrolysis of Cyt c does not change. However, the hydrolysis rate of Cyt c by CeK was increased in the presence of SDS, but decreased in the presence of CHAPS, and was nearly inhibited in the presence of Zw3 12. The Circular dichroism and Tryptophan fluorescence spectroscopy have shown that the structural changes in Cyt c caused by surfactants are similar to those caused by POMs, hence the same specificity in the absence or presence of surfactants was observed. The results also indicate that for Cyt c hydrolysis to occur, large unfolding of the protein is needed in order to accommodate the POMs. While SDS readily unfolds Cyt c, the protein remains largely folded in the presence of CHAPS and Zw3 12. Addition of POMs to Cyt c solutions in CHAPS results in unfolding of the structure allowing the interaction with POMs to occur and results in protein hydrolysis. Zw3 12, however, locks Cyt c in a conformation that resists unfolding upon addition of POM, and therefore results in nearly complete inhibition of protein hydrolysis.
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Affiliation(s)
- Thomas Quanten
- Laboratory of Bio-Inorganic Chemistry, Department of Chemistry, KU Leuven, Leuven, Belgium
| | - Tessa De Mayaer
- Laboratory of Bio-Inorganic Chemistry, Department of Chemistry, KU Leuven, Leuven, Belgium
| | - Pavletta Shestakova
- NMR Centre, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Tatjana N Parac-Vogt
- Laboratory of Bio-Inorganic Chemistry, Department of Chemistry, KU Leuven, Leuven, Belgium
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21
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Structure of the complex of cytochrome c with cardiolipin in non-polar environment. Chem Phys Lipids 2018; 214:35-45. [DOI: 10.1016/j.chemphyslip.2018.05.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 05/24/2018] [Accepted: 05/27/2018] [Indexed: 11/21/2022]
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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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23
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Liquid chromatography with alkylammonium formate ionic liquid mobile phases and fluorescence detection. J Chromatogr A 2018; 1559:128-135. [DOI: 10.1016/j.chroma.2018.03.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 03/05/2018] [Accepted: 03/12/2018] [Indexed: 02/05/2023]
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Reslan M, Kayser V. Ionic liquids as biocompatible stabilizers of proteins. Biophys Rev 2018; 10:781-793. [PMID: 29511969 DOI: 10.1007/s12551-018-0407-6] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 02/19/2018] [Indexed: 01/08/2023] Open
Abstract
Ionic liquids (ILs) have recently emerged as versatile solvents and additives in the field of biotechnology, particularly as stabilizers of proteins and enzymes. Of interest to the biotechnology industry is the formulation of stable biopharmaceuticals, therapeutic proteins, and vaccines which have revolutionized the treatment of many diseases including debilitating conditions such as cancers and auto-immune diseases. The stabilization of therapeutic proteins is typically achieved using additives that prevent unfolding and aggregation of these proteins during manufacture, transport, and long-term storage. To determine if ILs could be used in the formulation of stable therapeutic proteins, a thorough understanding of the effects of ILs on protein stability is needed, as well as understanding the toxicity of ILs on humans, and other considerations for formulation development such as viscosity and osmolality. In this review, we summarize recent developments on the stabilization of proteins and enzymes using ILs, with emphasis on identifying biocompatible ILs that may be suitable for the formulation of stable biopharmaceuticals in the future.
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Affiliation(s)
- Mouhamad Reslan
- Faculty of Pharmacy, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Veysel Kayser
- Faculty of Pharmacy, The University of Sydney, Sydney, NSW, 2006, Australia.
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25
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Saxena I, Kumar V, Devi R. Influence of Tetra Alkyl Ammonium Cation on Thermo-Physical Properties of N,N-Dimethyl Formamide with 1,4-Dioxane at Different Temperatures. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2018. [DOI: 10.1134/s1990793118010244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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Bisht M, Mondal D, Pereira MM, Freire MG, Venkatesu P, Coutinho JAP. Long-term protein packaging in bio-ionic liquids: Improved catalytic activity and enhanced stability of cytochrome C against multiple stresses. GREEN CHEMISTRY : AN INTERNATIONAL JOURNAL AND GREEN CHEMISTRY RESOURCE : GC 2017; 19:4900-4911. [PMID: 30271272 PMCID: PMC6157724 DOI: 10.1039/c7gc02011b] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
There is a considerable interest in the use of structurally stable and catalytically active enzymes, such as cytochrome C (Cyt C), in the pharmaceutical and fine chemical industries. However, harsh process conditions, such as temperature, pH, and presence of organic solvents, are the major barriers to the effective use of enzymes in biocatalysis. Herein, we demonstrate the suitability of bio-based ionic liquids (ILs) formed by the cholinium cation and dicarboxylate-based anions as potential media for enzymes, in which remarkable enhanced activity and improved stability of Cyt C against multiple stresses were obtained. Among the several bio-ILs studied, an exceptionally high catalytic activity (> 50-fold) of Cyt C was observed in aqueous solutions of cholinium glutarate ([Ch][Glu]; 1g/mL) as compared to the commonly used phosphate buffer solutions (pH 7.2), and > 25-fold as compared to aqueous solutions of cholinium dihydrogen phosphate ([Ch][Dhp]; 0.5g/mL) -the best known IL for long term stability of Cyt C. The catalytic activity of the enzyme in presence of bio-ILs was retained against several external stimulus, such as chemical denaturants (H2O2 and GuHCl), and temperatures up to 120 °C. The observed enzyme activity is in agreement with its structural stability, as confirmed by UV-Vis, circular dichroism (CD), and Fourier transform infrared (FT-IR) spectroscopies. Taking advantage of the multi-ionization states of di/tri-carboxylic acids, the pH was switched from acidic to basic by the addition of the corresponding carboxylic acid and choline hydroxide, respectively. The activity was found to be maximum at a 1:1 ratio of [Ch][carboxylate], with a pH in the range from 3 to 5.5. Moreover, it was found that the bio-ILs studied herein protect the enzyme against protease digestion and allow long-term storage (at least for 21 weeks) at room temperature. An attempt by molecular docking was also made to better understand the efficacy of the investigated bio-ILs towards the enhanced activity and long term stability of Cyt C. The results showed that dicarboxylates anions interact with the active site's amino acids of the enzyme through H-bonding and electrostatic interactions, which are responsible for the observed enhancement of the catalytic activity. Finally, it is demonstrated that Cyt C can be successfully recovered from the aqueous solution of bio-ILs and reused without compromising its yield, structural integrity and catalytic activity, thereby overcoming the major limitations in the use of IL-protein systems in biocatalysis.
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Affiliation(s)
- Meena Bisht
- Department of Chemistry, University of Delhi, Delhi – 110 007, India
- Departamento de Química, CICECO, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Dibyendu Mondal
- Departamento de Química, CICECO, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Matheus M. Pereira
- Departamento de Química, CICECO, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Mara G. Freire
- Departamento de Química, CICECO, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - P. Venkatesu
- Department of Chemistry, University of Delhi, Delhi – 110 007, India
| | - J. A. P. Coutinho
- Departamento de Química, CICECO, Universidade de Aveiro, 3810-193, Aveiro, Portugal
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Hayes DG, Ye R, Dunlap RN, Cuneo MJ, Pingali SV, O'Neill HM, Urban VS. Protein extraction into the bicontinuous microemulsion phase of a Water/SDS/pentanol/dodecane winsor-III system: Effect on nanostructure and protein conformation. Colloids Surf B Biointerfaces 2017; 160:144-153. [PMID: 28922633 DOI: 10.1016/j.colsurfb.2017.09.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 08/22/2017] [Accepted: 09/04/2017] [Indexed: 02/04/2023]
Abstract
Bicontinuous microemulsions (BμEs), consisting of water and oil nanodomains separated by surfactant monolayers of near-zero curvature, are potentially valuable systems for purification and delivery of biomolecules, for hosting multiphasic biochemical reactions, and as templating media for preparing nanomaterials. We formed Winsor-III systems by mixing aqueous protein and sodium dodecyl sulfate (SDS) solutions with dodecane and 1-pentanol (cosurfactant) to efficiently extract proteins into the middle (BμE) phase. Bovine serum albumin (BSA) and cytochrome c partitioned to the BμE phase at 64% and 81% efficiency, respectively, producing highly concentrated protein solutions (32 and 44gL-1, respectively), through release of water and oil from the BμEs. Circular dichroism spectroscopic analysis demonstrated that BSA underwent minor secondary structural changes upon incorporation into BμEs, while the secondary structure of cytochrome c and pepsin underwent major changes. Small-angle x-ray scattering (SAXS) results show that proteins promoted an increase of the interfacial fluidity and surface area per volume for the BμE surfactant monolayers, and that each protein uniquely altered self-assembly in the Winsor-III systems. Cytochrome c partitioned via electrostatic attractions between SDS and the protein's positively-charged groups, residing near the surfactant head groups of BμE monolayers, where it decreased surfactant packing efficiency. BSA partitioned through formation of SDS-BSA complexes via hydrophobic and electrostatic attractive interactions. As the BSA-SDS ratio increased, complexes' partitioning favored BμEs over the oil excess phase due to the increased hydrophilicity of the complexes. This study demonstrates the potential utility of BμEs to purify proteins and prepare nanostructured fluids possessing high protein concentration.
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Affiliation(s)
- Douglas G Hayes
- Department of Biosystems Engineering and Soil Science, University of Tennessee, Knoxville, TN 37996-4531 USA.
| | - Ran Ye
- Department of Biosystems Engineering and Soil Science, University of Tennessee, Knoxville, TN 37996-4531 USA
| | - Rachel N Dunlap
- Department of Biosystems Engineering and Soil Science, University of Tennessee, Knoxville, TN 37996-4531 USA; Biology & Soft Matter Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6475, USA
| | - Matthew J Cuneo
- Biology & Soft Matter Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6475, USA
| | - Sai Venkatesh Pingali
- Biology & Soft Matter Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6475, USA
| | - Hugh M O'Neill
- Biology & Soft Matter Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6475, USA
| | - Volker S Urban
- Biology & Soft Matter Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6475, USA
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Al Kaisy GM, Abdul Mutalib M, Rao T. Novel halogen free hydrophobic trioctylammonium-based protic ionic liquids with carboxylate anions: Synthesis, characterization, and thermophysical properties. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.07.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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29
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Taha M, Quental MV, e Silva FA, Capela EV, Freire MG, Ventura SPM, Coutinho JAP. Good's Buffer Ionic Liquids as Relevant Phase-Forming Components of Self-Buffered Aqueous Biphasic Systems. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (OXFORD, OXFORDSHIRE : 1986) 2017; 92:2287-2299. [PMID: 30270960 PMCID: PMC6161815 DOI: 10.1002/jctb.5222] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A series of new self-buffering ionic liquids (ILs) based on Good's buffers (GBs) anions and the tetrabutylphosphonium cation ([P4444]+) was here synthesized and characterized. The self-buffering behaviour of the GB-ILs was confirmed by measuring their protonation constants by potentiometry. Further, their ability to form aqueous biphasic systems with the biodegradable potassium citrate salt was evaluated, and further investigated for the extraction of proteins, using bovine serum albumin (BSA) as a model protein. If these ionic structures display self-buffering characteristics as well as a low toxicity towards the luminescent bacteria Vibrio fischeri, they were additionally found to be highly effective in the formation of ABS and in the extraction of BSA - extraction efficiencies of 100% to the IL-rich phase obtained in a single-step. The BSA secondary structure in the aqueous IL-rich solutions was evaluated through infrared spectroscopic studies revealing the protein-friendly nature of the synthesized ILs. Dynamic light scattering (DLS), "COnductor-like Screening MOdel for Real Solvents" (COSMO-RS), and molecular docking studies were finally carried out to better understand the main driving forces of the extraction process. The results suggest that van der Waals and hydrogen-bonding interactions are important driving forces of the protein migration towards the GB-IL-rich phase, while the molecular docking investigations demonstrated a stabilizing effect of the studied ILs over the protein.
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30
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Theoretical and Experimental Pathways for the Dehydrogenation of Ethylene Diamine Bisborane by an Ammonium Based Ionic Liquid. J SOLUTION CHEM 2017. [DOI: 10.1007/s10953-017-0636-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Kumar A, Bisht M, Venkatesu P. Biocompatibility of ionic liquids towards protein stability: A comprehensive overview on the current understanding and their implications. Int J Biol Macromol 2017; 96:611-651. [DOI: 10.1016/j.ijbiomac.2016.12.005] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 12/02/2016] [Accepted: 12/04/2016] [Indexed: 10/20/2022]
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32
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Ghosh S, Dey S, Patel M, Chakrabarti R. Can an ammonium-based room temperature ionic liquid counteract the urea-induced denaturation of a small peptide? Phys Chem Chem Phys 2017; 19:7772-7787. [DOI: 10.1039/c6cp08842b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The folding/unfolding equilibrium of proteins in aqueous medium can be altered by adding small organic molecules generally termed as co-solvents.
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Affiliation(s)
- Soumadwip Ghosh
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076
- India
| | - Souvik Dey
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076
- India
| | - Mahendra Patel
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076
- India
| | - Rajarshi Chakrabarti
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076
- India
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33
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Sarkar S, Ghosh S, Chakrabarti R. Ammonium based stabilizers effectively counteract urea-induced denaturation in a small protein: insights from molecular dynamics simulations. RSC Adv 2017. [DOI: 10.1039/c7ra10712a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Room temperature ionic liquids (IL) and deep eutectic solvents (DES) are known to aid the conformational stability and activity of proteins and enzymes in aqueous solutions.
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Affiliation(s)
- Soham Sarkar
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076
- India
| | - Soumadwip Ghosh
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076
- India
| | - Rajarshi Chakrabarti
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076
- India
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34
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Mondal D, Sharma M, Quental MV, Tavares APM, Prasad K, Freire MG. Suitability of bio-based ionic liquids for the extraction and purification of IgG antibodies. GREEN CHEMISTRY : AN INTERNATIONAL JOURNAL AND GREEN CHEMISTRY RESOURCE : GC 2016; 18:6071-6081. [PMID: 28255278 PMCID: PMC5330477 DOI: 10.1039/c6gc01482h] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
In the past decade, remarkable advances in the production and use of antibodies as therapeutic drugs and in research/diagnostic fields have led to their recognition as value-added proteins. These biopharmaceuticals have become increasingly important, reinforcing the current demand for the development of more benign, scalable and cost-effective techniques for their purification. Typical polymer-polymer and polymer-salt aqueous biphasic systems (ABS) have been studied for such a goal; yet, the limited polarity range of the coexisting phases and their low selective nature still are their major drawbacks. To overcome this limitation, in this work, ABS formed by bio-based ionic liquids (ILs) and biocompatible polymers were investigated. Bio-based ILs composed of ions derived from natural sources, namely composed of the cholinium cation and anions derived from plants natural acids, have been designed, synthesized, characterized and used for the creation of ABS with polypropyleneglycol (PPG 400). The respective ternary phase diagrams were initially determined at 25 °C to infer on mixture compositions required to form aqueous systems of two phases, further applied in the extraction of pure immunoglobulin G (IgG) to identify the most promising bio-based ILs, and finally employed in the purification of IgG from complex and real matrices of rabbit serum. Remarkably, the complete extraction of IgG to the IL-rich phase was achieved in a single-step. With pure IgG a recovery yield of 100% was obtained, while with rabbit serum this value slightly decreased to ca. 85%. Nevertheless, a 58% enhancement in the IgG purity was achieved when compared with its purity in serum samples. The stability of IgG before and after extraction was also evaluated by size exclusion high-performance liquid chromatography (SE-HPLC), sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) and Fourier transform infrared spectroscopy (FTIR). In most ABS formed by bio-based ILs, IgG retained its native structure, without degradation or denaturation effects, supporting thus their potential as remarkable platforms for the purification of high-cost biopharmaceuticals.
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Affiliation(s)
- Dibyendu Mondal
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Mukesh Sharma
- Natural Product and Green Chemistry Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar-364002, Gujarat, India
- AcSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar-364002, Gujarat, India
| | - Maria V. Quental
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ana P. M. Tavares
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Kamalesh Prasad
- Natural Product and Green Chemistry Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar-364002, Gujarat, India
- AcSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar-364002, Gujarat, India
| | - Mara G. Freire
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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35
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Dong X, Fan Y, Yang P, Kong J, Li D, Miao J, Hua S, Hu C. Ultraviolet-Visible (UV-Vis) and Fluorescence Spectroscopic Investigation of the Interactions of Ionic Liquids and Catalase. APPLIED SPECTROSCOPY 2016; 70:1851-1860. [PMID: 27324424 DOI: 10.1177/0003702816653124] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Accepted: 03/22/2016] [Indexed: 06/06/2023]
Abstract
The inhibitory effects of nine ionic liquids (ILs) on the catalase activity were investigated using fluorescence, absorption ultraviolet-visible spectroscopy. The interactions of ILs and catalase on the molecular level were studied. The experimental results indicated that ILs could inhibit the catalase activity and their inhibitory abilities depended on their chemical structures. Fluorescence experiments showed that hydrogen bonding played an important role in the interaction process. The inhibitory abilities of ILs on catalase activity could be simply described by their hydrophobicity and hydrogen bonding abilities. Unexpected less inhibitory effects of trifluoromethanesulfonate (TfO-) might be ascribed to its larger size, which makes it difficult to go through the substrate channel of catalase to the active site.
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Affiliation(s)
- Xing Dong
- College of Physics and Chemistry, Henan Polytechnic University, China
| | - Yunchang Fan
- College of Physics and Chemistry, Henan Polytechnic University, China
| | - Peng Yang
- College of Physics and Chemistry, Henan Polytechnic University, China
| | - Jichuan Kong
- College of Physics and Chemistry, Henan Polytechnic University, China
| | - Dandan Li
- College of Physics and Chemistry, Henan Polytechnic University, China
| | - Juan Miao
- College of Physics and Chemistry, Henan Polytechnic University, China
| | - Shaofeng Hua
- College of Physics and Chemistry, Henan Polytechnic University, China
| | - Chaobing Hu
- College of Physics and Chemistry, Henan Polytechnic University, China
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36
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Ferreira AM, Faustino VFM, Mondal D, Coutinho JAP, Freire MG. Improving the extraction and purification of immunoglobulin G by the use of ionic liquids as adjuvants in aqueous biphasic systems. J Biotechnol 2016; 236:166-175. [PMID: 27568168 DOI: 10.1016/j.jbiotec.2016.08.015] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 08/18/2016] [Accepted: 08/23/2016] [Indexed: 01/08/2023]
Abstract
Immunoglobulins G (IgG) could become widespread biopharmaceuticals if cost-efficient processes for their extraction and purification are available. In this work, aqueous biphasic systems (ABS) composed of polyethylene glycols and a buffered salt, and with ionic liquids (ILs) as adjuvants, have been studied as alternative extraction and purification platforms of IgG from a rabbit serum source. Eleven ILs were investigated to provide insights on the chemical features which maximize the IgG partitioning. It is shown that in polymer-salt systems pure IgG preferentially partitions to the polymer-rich phase; yet, the complete extraction was never attained. Remarkably, after the addition of 5wt% of adequate ILs to polymer-salt ABS, the complete extraction of pure IgG in a single-step was accomplished. The best systems and conditions were then applied to the extraction and purification of IgG directly from rabbit serum samples. The complete extraction of IgG in a single-step was maintained while its purity in the polymer-rich phase was enhanced by ca. 37% as compared to the IL-free ABS. The antibody stability was also evaluated revealing that appropriate ILs are able to maintain the IgG stability and can be used as phase-forming components of ABS when envisaging the purification of high-cost biopharmaceuticals.
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Affiliation(s)
- Ana M Ferreira
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Vânia F M Faustino
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Dibyendu Mondal
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - João A P Coutinho
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Mara G Freire
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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37
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Kumari M, Dohare N, Maurya N, Dohare R, Patel R. Effect of 1-methyl-3-octyleimmidazolium chloride on the stability and activity of lysozyme: a spectroscopic and molecular dynamics studies. J Biomol Struct Dyn 2016; 35:2016-2030. [DOI: 10.1080/07391102.2016.1204946] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Meena Kumari
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi 110025, India
| | - Neeraj Dohare
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi 110025, India
| | - Neha Maurya
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi 110025, India
| | - Ravins Dohare
- Nonlinear Dynamic 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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38
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Tarannum A, Muvva C, Mehta A, Raghava Rao J, Fathima NN. Role of Preferential Ions of Ammonium Ionic Liquid in Destabilization of Collagen. J Phys Chem B 2016; 120:6515-24. [DOI: 10.1021/acs.jpcb.6b02723] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Aafiya Tarannum
- Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India
| | - Charuvaka Muvva
- Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India
| | - Ami Mehta
- Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India
| | - J. Raghava Rao
- Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India
| | - N. Nishad Fathima
- Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India
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39
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Xiao F, Yue L, Li S, Li X. Conjugation of cytochrome c with ferrocene-terminated hyperbranched polymer and its influence on protein structure, conformation and function. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 162:69-74. [PMID: 26978787 DOI: 10.1016/j.saa.2016.03.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 03/03/2016] [Accepted: 03/04/2016] [Indexed: 06/05/2023]
Abstract
Interaction mechanism of a new hyperbranched polyurethane-based ferrocene (HPU-Fc) with cytochrome c (cyt c) and cyt c structure and conformation change induced by HPU-Fc were investigated using cyclic voltammogram(CV), differential pulse voltammetry (DPV), circular dichroism (CD), fluorescence, synchronous fluorescence and absorbance spectroscopy technique. The peroxidase activity of cyt c in the presence of HPU-Fc was also studied. The structure and conformation of protein are relatively stable at moderate concentration of HPU-Fc without obvious perturbation of the heme pocket and significant changes in protein secondary structure. Conjugation of cyt c with excessive HPU-Fc (over about 3 times of cyt c) slightly changed the α-helix structure in protein, disturbed the microenvironment around heme as well as away from the heme crevice, which caused the changes of the electrochemical behavior and the absorption spectra. Reasonable amount of HPU-Fc has no significant influence on the protein enzymatic activity, while excess HPU-Fc may cause a conformation not suitable for H2O2 activation and guaiacol oxidation. The interaction of HPU-Fc with cyt c and the conservation of protein function at suitable HPU-Fc amount make prepared complex promising for the synergistic anticancer therapy.
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Affiliation(s)
- Fengjuan Xiao
- School of Material Science and Engineering, Shijiazhuang Tiedao University, Hebei Provincial Key Laboratory of Traffic Engineering Materials, No. 17 North 2nd-Ring East Road, Shijiazhuang 050043, Hebei Province, China.
| | - Lin Yue
- School of Material Science and Engineering, Shijiazhuang Tiedao University, Hebei Provincial Key Laboratory of Traffic Engineering Materials, No. 17 North 2nd-Ring East Road, Shijiazhuang 050043, Hebei Province, China.
| | - Song Li
- School of Material Science and Engineering, Shijiazhuang Tiedao University, Hebei Provincial Key Laboratory of Traffic Engineering Materials, No. 17 North 2nd-Ring East Road, Shijiazhuang 050043, Hebei Province, China.
| | - Xinxin Li
- School of Material Science and Engineering, Shijiazhuang Tiedao University, Hebei Provincial Key Laboratory of Traffic Engineering Materials, No. 17 North 2nd-Ring East Road, Shijiazhuang 050043, Hebei Province, China.
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40
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Strassburg S, Bermudez H, Hoagland D. Lysozyme Solubility and Conformation in Neat Ionic Liquids and Their Mixtures with Water. Biomacromolecules 2016; 17:2233-9. [PMID: 27159556 DOI: 10.1021/acs.biomac.6b00468] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The room temperature solubility of a number of model proteins is assessed for a diverse set of neat ionic liquids (ILs). For two soluble protein-IL pairs, lysozyme in [C2MIM][EtSO4] (1-ethyl-3-methylimidazolium ethylsulfate) and in [C2,4,4,4P][Et2PO4] (tributyl(ethyl)phosphonium diethylphosphate), protein solubility and structure at various temperatures are probed by dynamic light scattering (assessing dissolved molecular size), turbidimetry (reflecting degree of solubility), and Fourier transform infrared spectroscopy (uncovering helical secondary structure). As compared to aqueous environments, [C2,4,4,4P][Et2PO4] thermally stabilizes protein size and secondary structure while [C2MIM][EtSO4] does the opposite. Lysozyme denatured in [C2MIM][EtSO4] does not aggregate, presumably due to an absence of hydrophobic interactions, and the denaturation appears thermally reversible. Both ILs at room temperature are miscible with water in all proportions, but to create the corresponding ternary mixtures with protein, the order of mixing is important. Mixed to avoid additions of water to IL-dissolved protein, stable solutions are obtained with [C2MIM][EtSO4] at all solvent compositions. When water is added to IL-rich solutions, liquid-liquid demixing is noted.
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Affiliation(s)
- Stephen Strassburg
- Polymer Science and Engineering Department, University of Massachusetts-Amherst , Amherst, Massachusetts 01003, United States
| | - Harry Bermudez
- Polymer Science and Engineering Department, University of Massachusetts-Amherst , Amherst, Massachusetts 01003, United States
| | - David Hoagland
- Polymer Science and Engineering Department, University of Massachusetts-Amherst , Amherst, Massachusetts 01003, United States
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41
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Fan Y, Dong X, Zhong Y, Li J, Miao J, Hua S, Li Y, Cheng B, Chen W. Effects of ionic liquids on the hydrolysis of casein by lumbrokinase. Biochem Eng J 2016. [DOI: 10.1016/j.bej.2015.12.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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42
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Papadopoulou AA, Efstathiadou E, Patila M, Polydera AC, Stamatis H. Deep Eutectic Solvents as Media for Peroxidation Reactions Catalyzed by Heme-Dependent Biocatalysts. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.5b04867] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Athena A. Papadopoulou
- Department of Biological
Applications and Technologies, Laboratory of Biotechnology, University of Ioannina, University Campus, 45110 Ioannina, Greece
| | - Evdoxia Efstathiadou
- Department of Biological
Applications and Technologies, Laboratory of Biotechnology, University of Ioannina, University Campus, 45110 Ioannina, Greece
| | - Michaela Patila
- Department of Biological
Applications and Technologies, Laboratory of Biotechnology, University of Ioannina, University Campus, 45110 Ioannina, Greece
| | - Angeliki C. Polydera
- Department of Biological
Applications and Technologies, Laboratory of Biotechnology, University of Ioannina, University Campus, 45110 Ioannina, Greece
| | - Haralambos Stamatis
- Department of Biological
Applications and Technologies, Laboratory of Biotechnology, University of Ioannina, University Campus, 45110 Ioannina, Greece
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43
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Dong X, Fan Y, Zhang H, Zhong Y, Yang Y, Miao J, Hua S. Inhibitory effects of ionic liquids on the lactic dehydrogenase activity. Int J Biol Macromol 2016; 86:155-61. [PMID: 26802246 DOI: 10.1016/j.ijbiomac.2016.01.059] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 01/12/2016] [Accepted: 01/18/2016] [Indexed: 12/11/2022]
Abstract
Ionic liquids (ILs) were widely used in scientific and industrial application and have been reported to possess potential toxicity to the environment and human health. The effects of six typical N-methylimidazolium-based ILs ([Cnmim]X, n=4, 6, 8; X=Br(-), Cl(-), BF4(-), CF3SO3(-)) on the lactic dehydrogenase (LDH) activity and the molecular interaction mechanism of ILs and the LDH were investigated with the aid of spectroscopic techniques. Experimental results showed that the LDH activity was inhibited in the presence of ILs. For the ILs with the same anion but different cations, their inhibitory ability on the LDH activity increased with increasing the alkyl chain length on the IL cation. Thermodynamic parameters, enthalpy change (ΔH) and entropy change (ΔS) were obtained by analyzing the fluorescence behavior of LDH with the addition of ILs. Both positive ΔH and ΔS suggested that hydrophobicity was the major driven force in the interaction process as expected.
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Affiliation(s)
- Xing Dong
- College of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454003, China
| | - Yunchang Fan
- College of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454003, China.
| | - Heng Zhang
- College of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454003, China
| | - Yingying Zhong
- Technology Center of Ningbo Entry-Exit Inspection and Quarantine Bureau, Ningbo 315012, China
| | - Yang Yang
- College of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454003, China
| | - Juan Miao
- College of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454003, China
| | - Shaofeng Hua
- College of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454003, China
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44
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Wijaya EC, Separovic F, Drummond CJ, Greaves TL. Activity and conformation of lysozyme in molecular solvents, protic ionic liquids (PILs) and salt–water systems. Phys Chem Chem Phys 2016; 18:25926-25936. [DOI: 10.1039/c6cp03334b] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The role of solvent features on enzyme stability was investigated by comparing the conformation and activity of lysozyme in molecular solvents, PILs and salt solutions. Electrostatic interactions and the solvophobic effect dominated at low and high solvent concentrations, respectively.
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Affiliation(s)
- Emmy C. Wijaya
- School of Chemistry
- Bio21 Institute
- The University of Melbourne
- Australia
- CSIRO Manufacturing
| | - Frances Separovic
- School of Chemistry
- Bio21 Institute
- The University of Melbourne
- Australia
| | - Calum J. Drummond
- School of Science
- College of Science
- Engineering and Health
- RMIT University
- Australia
| | - Tamar L. Greaves
- School of Science
- College of Science
- Engineering and Health
- RMIT University
- Australia
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45
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Govinda V, Venkatesu P, Bahadur I. Molecular interactions between ammonium-based ionic liquids and molecular solvents: current progress and challenges. Phys Chem Chem Phys 2016; 18:8278-326. [DOI: 10.1039/c6cp00199h] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this perspective, we describe how the thermodynamic parameters can be effectively used to gain valuable insights into molecular interactions between ammonium-based ILs and molecular solvents, which would be most useful in various industries.
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Affiliation(s)
- Varadhi Govinda
- Department of Chemistry
- University of Delhi
- Delhi – 110 007
- India
| | | | - Indra Bahadur
- Department of Chemistry and Material Science Innovation & Modelling (MaSIM) Research Focus Area
- Faculty of Agriculture
- Science and Technology
- North-West University (Mafikeng Campus)
- Mmabatho 2735
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46
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Ionic liquids effects on the permeability of photosynthetic membranes probed by the electrochromic shift of endogenous carotenoids. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2015; 1848:2898-909. [DOI: 10.1016/j.bbamem.2015.09.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 08/06/2015] [Accepted: 09/03/2015] [Indexed: 11/22/2022]
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47
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Greaves TL, Drummond CJ. Protic Ionic Liquids: Evolving Structure-Property Relationships and Expanding Applications. Chem Rev 2015; 115:11379-448. [PMID: 26426209 DOI: 10.1021/acs.chemrev.5b00158] [Citation(s) in RCA: 512] [Impact Index Per Article: 56.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Tamar L Greaves
- School of Applied Sciences, College of Science, Engineering and Health, RMIT University , GPO Box 2476, Melbourne, Victoria 3001, Australia
| | - Calum J Drummond
- School of Applied Sciences, College of Science, Engineering and Health, RMIT University , GPO Box 2476, Melbourne, Victoria 3001, Australia
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48
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Vasantha T, Kavitha T, Kumar A, Venkatesu P, Rama Devi R. Evaluating the transfer free energies of amino acids from water to ammonium-based ionic liquids at 298.15K. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.04.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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49
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Jha I, Venkatesu P. Endeavour to simplify the frustrated concept of protein-ammonium family ionic liquid interactions. Phys Chem Chem Phys 2015; 17:20466-84. [DOI: 10.1039/c5cp01735a] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Schematic representation of protein stabilization/destabilization in the presence of ionic liquids.
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Affiliation(s)
- Indrani Jha
- Department of Chemistry
- University of Delhi
- Delhi – 110007
- India
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50
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Attri P, Jha I, Choi EH, Venkatesu P. Variation in the structural changes of myoglobin in the presence of several protic ionic liquid. Int J Biol Macromol 2014; 69:114-23. [DOI: 10.1016/j.ijbiomac.2014.05.032] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 05/12/2014] [Accepted: 05/14/2014] [Indexed: 11/27/2022]
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