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Liu C, Sun F, Tian Y, Jiang L, Wang Z, Zhou L. Recovery of soy whey protein from soy whey wastewater at various cavitation jet pretreatment time and their structural and emulsifying properties. Food Chem X 2024; 21:101122. [PMID: 38261844 PMCID: PMC10796266 DOI: 10.1016/j.fochx.2024.101122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 12/24/2023] [Accepted: 01/04/2024] [Indexed: 01/25/2024] Open
Abstract
Protein-polysaccharide composite is of great significance for the development of soluble protein recovery process. This study investigated the effects of cavitation jet (CJ) pretreatment at different time (0, 60, 120, 180, 240, 300 s) intervals on the recovery of soy whey protein (SWP) from soy whey wastewater using chitosan (CH). In addition, the structure and properties of the SWP/CH complexes were examined. The results showed that the recovery yield of SWP reached 84.44 % when the CJ pretreatment time was 180 s, and the EAI and ESI values of the SWP/CH complex increased from 32.39 m2/g and 21 min to 48.47 m2/g and 32 min, respectively. In the CJ pretreatment process, SWP promotes the recombination with chitosan through electrostatic interaction and hydrogen bond, while hydrophobic interaction is also involved. This study has guiding significance for CJ technology in the recovery and utilization of protein in industrial wastewater.
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Affiliation(s)
- Caihua Liu
- College of Food and Health, Beijing Technology and Business University, Beijing 100048, China
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Fuwei Sun
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Yachao Tian
- School of Food Science and Engineering, Qilu University of Technology, Jinan, Shandong 250353, China
| | - Lianzhou Jiang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Zhongjiang Wang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Linyi Zhou
- College of Food and Health, Beijing Technology and Business University, Beijing 100048, China
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Fatima S, Hussain I, Ahmed S, Afaq MA, Tabish M. Insight into the interaction of isochroman with bovine serum albumin: extensive experimental and computational investigations. J Biomol Struct Dyn 2024:1-15. [PMID: 38319026 DOI: 10.1080/07391102.2024.2310203] [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: 06/26/2023] [Accepted: 01/19/2024] [Indexed: 02/07/2024]
Abstract
The way therapeutic compounds interact with serum protein provides valuable information on their pharmacokinetics, toxicity, effectiveness, and even their structural-related information. Isochroman (IC) is a phytochemical compound obtained from the leaves of Olea europea plant. The derivatives of IC have various pharmacological properties including antidepressants, antihistamines, antiinflammation, anticonvulsants, appetite depressants, etc. The binding of small molecules to bovine serum albumin (BSA) is useful to ensure their efficacy. Thus, in this study, we have found out the binding mode of IC with BSA using several spectroscopic and in silico studies. UV and fluorescence spectroscopy suggested the complex formation between IC and BSA with a binding constant of 103 M-1. IC resulted in fluorescence quenching in BSA through static mechanism. The microenvironmental and conformational changes in BSA were confirmed using synchronous and three-dimensional studies. Site marker experiment revealed the IC binding in site-III of BSA. The influence of vitamins, metals and β-cyclodextrin (β-CD) on binding constant of IC-BSA complex was also examined. Circular dichroism spectra showed that α-helical of BSA decreased upon interaction with IC. Computational and experimental results were complimentary with one another and assisted in determining the binding sites, nature of bonds and amino acids included in the IC-BSA complex formation.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sana Fatima
- Department of Biochemistry, Faculty of Life Science, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Irfan Hussain
- Department of Biochemistry, Faculty of Life Science, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Shahbaz Ahmed
- Department of Biochemistry, Faculty of Life Science, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Mohd Abuzar Afaq
- Department of Biochemistry, Faculty of Life Science, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Mohammad Tabish
- Department of Biochemistry, Faculty of Life Science, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
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Manivel P, Marimuthu P, Ilanchelian M. Deciphering the binding site and mechanism of new methylene blue with serum albumins: A multispectroscopic and computational investigation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 300:122900. [PMID: 37244028 DOI: 10.1016/j.saa.2023.122900] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 04/28/2023] [Accepted: 05/17/2023] [Indexed: 05/29/2023]
Abstract
Herein, the interaction mechanism of new methylene blue (NMB) with human serum albumin (HSA) and bovine serum albumin (BSA) was carefully investigated both experimentally and conceptually, employing experimental and insilico analysis. The steady-state emission spectral studies showed that the emission intensity of HSA and BSA was quenched significantly by NMB. The findings of the Stern-Volmer and double logarithmic plot revealed that the observed emission quenching process was through a static quenching mechanism and the measured binding constant values (Kb) for HSA-NMB and BSA-NMB are 2.766 and 1.187 × 105 dm3 mol-1 respectively. The time-resolved fluorescence lifetime measurement and UV-vis absorption investigation further verify the complex formation between NMB and HSA/BSA. The assessment of thermodynamic parameters disclosed the binding process was spontaneous driven by hydrogen bonds (H-bond) and van der Waals interactions, which contributed a significant role in the complexation. Moreover, the secondary structural conformation and microenvironment of HSA/BSA were modified in the presence of NMB, as evidenced by circular dichroism and synchronous fluorescence data. Molecular docking study predicted a plausible binding mode of NMB inside the binding pocket of HSA and BSA. These results demonstrated that the stabilized NMB is found at the Subdomain IIA (site I) of both the proteins and the results were correlated well with the competitive binding assay. Additionally, the principal components analysis revealed less variation of docked poses for HSA, while, more dispersed docked poses were observed for the BSA model. This also highlights the effects of docking towards a modeled protein (BSA). Molecular dynamic (MD) simulation based binding free energy (ΔGmmgbsa) estimation obtained at 298, 303, 308 and 313 K, were in good agreement with our experimental (ΔGbind) values.
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Affiliation(s)
- Perumal Manivel
- Department of Chemistry, Bharathiar University, Coimbatore, Tamil Nadu, India; Bharathiar Cancer Theranostics Research Centre (RUSA-2.0), Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | - Parthiban Marimuthu
- Structural Bioinformatics Laboratory (SBL - Biochemistry) and Pharmaceutical Science Laboratory (PSL - Pharmacy), Faculty of Science and Engineering, Åbo Akademi University, FI-20520 Turku, Finland
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Grabowska O, Samsonov SA, Chmurzyński L, Wyrzykowski D, Żamojć K. Investigation of hexacyanoferrate(II)/(III) charge-dependent interactions with bovine and human serum albumins. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 293:122505. [PMID: 36809739 DOI: 10.1016/j.saa.2023.122505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 01/21/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
In the present paper, the binding interactions of highly negative-charged ions, namely hexacyanoferrates(II/III), i.e. [Fe(CN)6]4- and [Fe(CN)6]3- with bovine and human serum albumins (BSA and HSA, respectively) have been studied for the first time in an aqueous solution (10 mM cacodylate buffer of pH 7.0) using steady-state fluorescence spectroscopy, isothermal titration calorimetry, and CD spectroscopy supported by molecular dynamics-based computational approaches. The Stern-Volmer equation as well as its modifications suggested that hexacyanoferrates(II/III) effectively quenched the intrinsic fluorescence of the albumins through a static mechanism. The proteins under study possess only one binding site on the surface capable of binding one mole of hexacyanoferrates(II/III) ions per one mole of albumin (HSA or BSA). The formation of albumin complexes is an enthalpy-driven process (|ΔHITC| > |TΔSITC|). The strength of the interactions depends mainly on the type of albumin, and changes as follows: BSA-K3[Fe(CN)6] ∼ BSA-K4[Fe(CN)6] > HSA-K3[Fe(CN)6] ∼ HSA-K4[Fe(CN)6]. Finally, potential binding sites of bovine and human serum albumins have been investigated and discussed based on a competitive fluorescence displacement assay (with warfarin and ibuprofen as site markers) and molecular dynamics simulations.
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Affiliation(s)
- Ola Grabowska
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Sergey A Samsonov
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Lech Chmurzyński
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Dariusz Wyrzykowski
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
| | - Krzysztof Żamojć
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland
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Li N, Huang X, Shao H. Exploring the pH Sensitivity of Ion-Pair Interactions on a Self-Assembled Monolayer by Scanning Electrochemical Microscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:6529-6538. [PMID: 37116313 DOI: 10.1021/acs.langmuir.3c00469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Insights into the chemical essence of weak interactions on the surface of biomacromolecules may help to regulate biological processes. In this work, the pH sensitivity of ion-pair interactions occurring on a cysteine self-assembled monolayer (Cys SAM) that simulates the local surface of a protein was probed by scanning electrochemical microscopy (SECM). Cys SAM and the ion-pair interactions subsequently formed with the introduced aspartic acid (Asp) were both pH-sensitive, as confirmed by the tip current changes in the feedback mode. After continuous pH measurements, the most significant negative feedback was observed at pH 5.50, indicating the most robust ion-pair interactions, which were simultaneously identified by voltammetry. In this case, the extra addition of the inorganic cation (i.e., Ca2+) did not disrupt the existing ion-pair interactions, and the binding constant (K) and Gibbs free energy (ΔGo) of the ion pair were finally determined to be 6.44 × 105 M-1 and -33.14 kJ mol-1, respectively. Overall, the pH sensitivity of ion-pair interactions was found to be mainly attributable to pH-induced changes in the deprotonated/protonated states of the α-amino acid moieties, which may provide insights into the artificial manipulation of complex binding events at the molecular level on the biological surface.
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Affiliation(s)
- Na Li
- Key Laboratory of Cluster Science (Ministry of Education), Beijing Key Laboratory of Photoelectronic and Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing102488, P. R. China
| | - Ximing Huang
- School of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, Hunan, P. R. China
| | - Huibo Shao
- Key Laboratory of Cluster Science (Ministry of Education), Beijing Key Laboratory of Photoelectronic and Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing102488, P. R. China
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Wu S, Wang W, Lu J, Deng W, Zhao N, Sun Y, Liu H, Li Z, Chen M, Cheng L, Guo Q, Wang C, Peng X. Binding of ankaflavin with bovine serum albumin (BSA) in the presence of carrageenan and protective effects of Monascus yellow pigments against oxidative damage to BSA after forming a complex with carrageenan. Food Funct 2023; 14:2459-2471. [PMID: 36790135 DOI: 10.1039/d2fo02946d] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Ankaflavin (AK) is a typical yellow pigment extracted from Monascus-fermented rice with several biological effects; however, its solubility is poor. Thus, research studies of the delivery systems of AK, especially those constructed from protein-polysaccharide complexes, have attracted considerable attention. However, the interactions that exist in the system have rarely been investigated. This work focused on the interactions between AK and bovine serum albumin (BSA) as well as the influence of carrageenan (Car) on the binding of AK to BSA. Results revealed that the quenching of BSA by AK involved the static quenching mechanism. The formed BSA-AK complexes were mainly maintained by hydrophobic forces and AK was located within the hydrophobic cavity of BSA. Compared to free AK or AK only complexed with BSA, a higher absorption intensity of AK was observed for the formed BSA-AK-Car complexes, indicating changes in the microenvironment of AK. This was confirmed by the increase in the α-helix content of BSA after the formation of BSA-AK-Car complexes. Hydrogen bond, van der Waals, and electrostatic interactions were verified to be the primary forces preserving the BSA-AK-Car complexes. Moreover, the antioxidant potential of Monascus-fermented products rich in AK (denoted as Mps), namely BSA-Mps and BSA-Mps-Car was evaluated. The antioxidant activity of Mps was negatively impacted by BSA, while the addition of Car could enhance the antioxidant capacity of BSA-Mps-Car complexes. Meanwhile, Mps showed a protective effect against free radical-induced oxidation damage to BSA, and Car could further improve this effect.
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Affiliation(s)
- Shufen Wu
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, P. R. China.,Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology & Business University (BTBU), Beijing 100048, P. R. China
| | - Wenyu Wang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, P. R. China
| | - Jingwen Lu
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, P. R. China
| | - Weili Deng
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, P. R. China
| | - Nan Zhao
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, P. R. China
| | - Yue Sun
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, P. R. China
| | - Huanhuan Liu
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, P. R. China
| | - Zhenjing Li
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, P. R. China
| | - Mianhua Chen
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, P. R. China
| | - Lei Cheng
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology & Business University (BTBU), Beijing 100048, P. R. China
| | - Qingbin Guo
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, P. R. China
| | - Changlu Wang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, P. R. China
| | - Xin Peng
- School of Life Sciences, Tianjin University, Tianjin 300072, P. R. China. .,State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, P. R. China
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Hakeem MJ, Khan JM, Malik A, Husain FM, Ambastha V. Role of salts and solvents on the defibrillation of food dye "sunset yellow" induced hen egg white lysozyme amyloid fibrils. Int J Biol Macromol 2022; 219:1351-1359. [PMID: 36058397 DOI: 10.1016/j.ijbiomac.2022.08.199] [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: 07/17/2022] [Revised: 08/29/2022] [Accepted: 08/30/2022] [Indexed: 11/05/2022]
Abstract
Several food dyes are known to induce amyloid fibrillation when interacting with proteins. Here, we studied the role of sunset yellow (SY) in the amyloid fibrillation of hen egg white lysozyme (HEWL) and characterized the changes using spectroscopy techniques. Turbidity results showed that SY dye induces aggregation in HEWL in concentrations dependent manner. The aggregation induced by SY dye is kinetically very fast, no lag phase was detected, and the kinetics process follows an isodesmic kinetics pathway. The SY-dye induce aggregates have cross-β secondary structure confirmed by far-UV CD measurements. The effect of salts and solvents was also seen on SY-induced aggregates. Turbidity, far-UV CD, and kinetics results suggest that certain concentrations of NaCl and (NH4)2SO4 solubilize the SY-induce amyloid fibrils, but (NH4)2SO4 is more effective. Similarly, solvents are also solubilized the SY-induces HEWL amyloid fibrillation but the order of defibrillation is as follows: Isopropanol> ethanol > methanol which signified that isopropanol is more effective than other solvents. The salts and solvents data suggest that the electrostatic, as well as hydrophobic interaction, is responsible for SY-induced amyloid fibrillation. These conformational changes should be examined, more seriously for the purpose of food safety.
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Affiliation(s)
- Mohammed J Hakeem
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Javed Masood Khan
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Ajamaluddin Malik
- Department of Biochemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Fohad Mabood Husain
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Vivek Ambastha
- Biology Department, Washington University in St Louis, One Brooking Dr, St Louis 631330, MO, USA
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Parveen S, Ali MS, Al-Lohedan HA, Tabassum S. Interaction of Carrier Protein with Potential Metallic Drug Candidate N-Glycoside 'GATPT': Validation by Multi-Spectroscopic and Molecular Docking Approaches. Molecules 2021; 26:6641. [PMID: 34771048 PMCID: PMC8587009 DOI: 10.3390/molecules26216641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 10/25/2021] [Accepted: 10/27/2021] [Indexed: 12/02/2022] Open
Abstract
Lysozyme is often used as a model protein to study interaction with drug molecules and to understand biological processes which help in illuminating the therapeutic effectiveness of the drug. In the present work, in vitro interaction studies of 1-{(2-hydroxyethyl)amino}-2-amino-1,2-dideoxy-d-glucose triphenyl tin (IV) (GATPT) complex with lysozyme were carried out by employing various biophysical methods such as absorption, fluorescence, and circular dichroism (CD) spectroscopies. The experimental results revealed efficient binding affinity of GATPT with lysozyme with intrinsic binding (Kb) and binding constant (K) values in the order of 105 M-1. The number of binding sites and thermodynamic parameters ΔG, ΔH, and ΔS at four different temperatures were also calculated and the interaction of GATPT with lysozyme was found to be enthalpy and entropy driven. The CD spectra revealed alterations in the population of α-helical content within the secondary structure of lysozyme in presence of GATPT complex. The morphological analysis of the complex with lysozyme and lysozyme-DNA condensates was carried out by employing confocal and SEM studies. Furthermore, the molecular docking studies confirmed the interaction of GATPT within the larger hydrophobic pocket of the lysozyme via several non-covalent interactions.
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Affiliation(s)
- Sabiha Parveen
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India;
| | - Mohd. Sajid Ali
- Department of Chemistry, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia; (M.S.A.); (H.A.A.-L.)
| | - Hamad A. Al-Lohedan
- Department of Chemistry, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia; (M.S.A.); (H.A.A.-L.)
| | - Sartaj Tabassum
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India;
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Kang J, Kang AM. Comment on "Physicochemical stimuli as tuning parameters to modulate the structure and stability of nanostructured lipid carriers and release kinetics of encapsulated antileprosy drugs" by R. Kanwar, M. Gradzielski, S. Prevost, G. Kaur, M. S. Appavou and S. K. Mehta, J. Mater. Chem. B, 2019, 7, 6539. J Mater Chem B 2020; 8:10205-10208. [PMID: 33125021 DOI: 10.1039/d0tb01160f] [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
In a recent article [R. Kanwar et al., J. Mater. Chem. B, 2019, 7(42), 6539-6555], the authors characterized the interactions between drug-loaded nanostructured lipid carriers and bovine serum albumin using thermodynamics. They found that the interactions are spontaneous and driven by entropy. In this present paper, we report our analysis of these results in terms of equilibrium thermodynamics to show that the binding reactions exhibit enthalpy-entropy compensation. Our findings may prove useful for designing nanostructured lipid carriers.
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Affiliation(s)
- Jonghoon Kang
- Department of Biology, Valdosta State University, Valdosta, Georgia, USA.
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Rao H, Qi W, Su R, He Z, Peng X. Mechanistic and conformational studies on the interaction of human serum albumin with rhodamine B by NMR, spectroscopic and molecular modeling methods. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113889] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Ameen F, Siddiqui S, Jahan I, Nayeem SM, Rehman SU, Tabish M. A detailed insight into the interaction of memantine with bovine serum albumin: A spectroscopic and computational approach. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112671] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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12
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Huang X, Xu J, Du W. Assembly behavior of amylin fragment hIAPP19-37 regulated by Au(III) complexes. J Inorg Biochem 2019; 201:110807. [DOI: 10.1016/j.jinorgbio.2019.110807] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/03/2019] [Accepted: 08/23/2019] [Indexed: 02/06/2023]
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13
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Rabelo RS, Tavares GM, Prata AS, Hubinger MD. Complexation of chitosan with gum Arabic, sodium alginate and κ-carrageenan: Effects of pH, polymer ratio and salt concentration. Carbohydr Polym 2019; 223:115120. [DOI: 10.1016/j.carbpol.2019.115120] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 07/17/2019] [Accepted: 07/21/2019] [Indexed: 12/20/2022]
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14
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Patel BK, Sepay N, Mahapatra A. Curious Results in the Prospective Binding Interactions of the Food Additive Tartrazine with β-Lactoglobulin. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:11579-11589. [PMID: 31385703 DOI: 10.1021/acs.langmuir.9b01242] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The detailed characterizations of the binding interactions between food additive tartrazine (TZ) and β-lactoglobulin (β-LG) have been investigated through spectroscopic techniques combined with a molecular modeling study. A series of analyses, such as hyperchromic change in the UV-visible spectra, temperature-dependent quenching constant, time-resolved fluorescence, and Rayleigh scattering measurements, show that quenching of β-LG proceeds by a static quenching mechanism. TZ specifically binds with β-LG in a stoichiometry ratio of 1:1, and the observed binding constants (104, K) are 7.64, 9.13, 9.72, and 10.79 at 293, 298, 303, and 308 K, respectively. However, the curious results of binding constants (K) with temperature, encountered in the static quenching, have been well explained on the basis of Le Chatelier's principle. Thermodynamic data and pH-dependent studies along with the surface hydrophobicity binding displacement assay reveal that the durable mode of binding is chiefly entropy-driven, revealing noteworthy interactions of such ionic molecules with the hydrophobic part of β-LG. The modulation of protein conformation has been investigated through steady-state absorption spectroscopy, synchronous emission spectroscopy, circular dichroism, and dynamic light scattering studies. TZ acts as a potential inhibitor in fibrillogenesis. Furthermore, the molecular docking study offers accurate insights about the binding of TZ with β-LG, in consistence with the experimental results. This study would be helpful in pharmaceutical, food, and industrial engineering chemistry research.
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Affiliation(s)
- Biman Kumar Patel
- Department of Chemistry , Jadavpur University , Kolkata 700 032 , India
| | - Nayim Sepay
- Department of Chemistry , Jadavpur University , Kolkata 700 032 , India
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15
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Wang Y, Mu Y, Hu J, Zhuang Q, Ni Y. Rapid, one-pot, protein-mediated green synthesis of water-soluble fluorescent nickel nanoclusters for sensitive and selective detection of tartrazine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 214:445-450. [PMID: 30807942 DOI: 10.1016/j.saa.2019.02.055] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 01/16/2019] [Accepted: 02/16/2019] [Indexed: 05/22/2023]
Abstract
In the work, water-soluble bovine serum albumin-protected fluorescent nickel nanoclusters (BSA-NiNCs) are used as fluorescent probes to construct a label-free fluorescence quenching sensor for sensitive and selective detection of tartrazine. The fluorescent BSA-NiNCs are synthesized in one pot using BSA as both the template and reducing agent, and hydrogen peroxide as the additive. The as-prepared NiNCs are characterized by using various analytical techniques like transmission electron microscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, UV-Vis absorption spectroscopy, circular dichroism spectroscopy, and fluorescence spectroscopy. The synthesized BSA-NiNCs have a quantum yield of ca. 8% by using quinine sulfate as a standard. The sensor for tartrazine detection shows a wide linear range of 0.01-3.5 μM, with a low detection limit of 4 nM. The fluorescence quenching very likely results from the combination of the intermolecular interactions and the secondary inner filter effect between BSA-NiNCs and tartrazine. Then, the proposed sensor is successfully employed for tartrazine detection in drink samples, and the results are comparable with those based on a reference HPLC method.
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Affiliation(s)
- Yong Wang
- College of Chemistry, Nanchang University, Nanchang 330031, China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
| | - Yaxin Mu
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Jie Hu
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Qianfen Zhuang
- College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Yongnian Ni
- College of Chemistry, Nanchang University, Nanchang 330031, China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
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16
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Cyclic Voltammetric DNA Binding Investigations on Some Anticancer Potential Metal Complexes: a Review. Appl Biochem Biotechnol 2018; 186:1090-1110. [DOI: 10.1007/s12010-018-2818-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 06/10/2018] [Indexed: 12/27/2022]
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17
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Kaur A, Khan IA, Banipal PK, Banipal TS. Deciphering the complexation process of a fluoroquinolone antibiotic, levofloxacin, with bovine serum albumin in the presence of additives. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 191:259-270. [PMID: 29045929 DOI: 10.1016/j.saa.2017.10.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Revised: 10/04/2017] [Accepted: 10/08/2017] [Indexed: 06/07/2023]
Abstract
The current work aims to explore the thermodynamic and conformational aspects for the binding of fluoroquinolone antibacterial drug, levofloxacin (LFC), with bovine serum albumin (BSA) using calorimetric, spectroscopic (UV-visible, fluorescence, circular dichroism, and 1H NMR), dynamic light scattering (DLS) and computational methods (molecular docking). The binding of LFC with BSA at two sequential sites with higher affinity (~103M-1) at the first site has been explored by calorimetry whereas the binding at a single site with affinity of the order of ~104M-1 has been observed from fluorescence spectroscopy. The calorimetric study in the presence of additives along with docking analysis reveals the significant role of electrostatic, hydrogen bonding, and hydrophobic interactions in the association process. The slight conformational changes in protein as well as the changes in the water network structure around the binding cavity of protein have been observed from spectroscopic and DLS measurements. The LFC induced quenching of BSA fluorescence was observed to be initiated mainly through the static quenching process and this suggests the formation of ground state LFC-BSA association complex. The stronger interactions of LFC in the cavity of Sudlow site I (subdomain IIA) of protein have been explored from site marker calorimetric and molecular docking study.
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Affiliation(s)
- Amandeep Kaur
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, Punjab, India
| | - Imran Ahmd Khan
- School of Pharmaceutical Science and Technology,Tianjin University, Tianjin 300072, PR China
| | | | - Tarlok Singh Banipal
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, Punjab, India.
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18
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Uzair S, Farooq U, Bidhuri P, Ali A. Interaction of Cresol Red Dye with Some Basic Amino Acids under Different pH Conditions. J CHIN CHEM SOC-TAIP 2017. [DOI: 10.1002/jccs.201700138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sahar Uzair
- Department of Chemistry; Jamia Millia Islamia (Central University); New Delhi 110025 India
| | - Ummer Farooq
- Department of Chemistry; Jamia Millia Islamia (Central University); New Delhi 110025 India
| | - Priyanka Bidhuri
- Department of Chemistry; Kalindi College, University of Delhi; New Delhi 110008 India
| | - Anwar Ali
- Department of Chemistry; Jamia Millia Islamia (Central University); New Delhi 110025 India
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19
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Synthetic food additive dye “Tartrazine” triggers amorphous aggregation in cationic myoglobin. Int J Biol Macromol 2017; 98:277-286. [DOI: 10.1016/j.ijbiomac.2017.01.097] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 12/27/2016] [Accepted: 01/23/2017] [Indexed: 12/18/2022]
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20
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Basu A, Suresh Kumar G. Binding and Inhibitory Effect of the Dyes Amaranth and Tartrazine on Amyloid Fibrillation in Lysozyme. J Phys Chem B 2017; 121:1222-1239. [DOI: 10.1021/acs.jpcb.6b10465] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Anirban Basu
- Biophysical Chemistry Laboratory Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata 700 032, India
| | - Gopinatha Suresh Kumar
- Biophysical Chemistry Laboratory Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata 700 032, India
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21
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Basu A, Suresh Kumar G. Multispectroscopic and calorimetric studies on the binding of the food colorant tartrazine with human hemoglobin. JOURNAL OF HAZARDOUS MATERIALS 2016; 318:468-476. [PMID: 27450339 DOI: 10.1016/j.jhazmat.2016.07.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 07/06/2016] [Accepted: 07/07/2016] [Indexed: 06/06/2023]
Abstract
Interaction of the food colorant tartrazine with human hemoglobin was studied using multispectroscopic and microcalorimetric techniques to gain insights into the binding mechanism and thereby the toxicity aspects. Hemoglobin spectrum showed hypochromic changes in the presence of tartrazine. Quenching of the fluorescence of hemoglobin occurred and the quenching mechanism was through a static mode as revealed from temperature dependent and time-resolved fluorescence studies. According to the FRET theory the distance between β-Trp37 of hemoglobin and bound tartrazine was evaluated to be 3.44nm. Synchronous fluorescence studies showed that tartrazine binding led to alteration of the microenvironment around the tryptophans more in comparison to tyrosines. 3D fluorescence and FTIR data provided evidence for conformational changes in the protein on binding. Circular dichroism studies revealed that the binding led to significant loss in the helicity of hemoglobin. The esterase activity assay further complemented the circular dichroism data. Microcalorimetric study using isothermal titration calorimetry revealed the binding to be exothermic and driven largely by positive entropic contribution. Dissection of the Gibbs energy change proposed the protein-dye complexation to be dominated by non-polyelectrolytic forces. Negative heat capacity change also corroborated the involvement of hydrophobic forces in the binding process.
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Affiliation(s)
- Anirban Basu
- Biophysical Chemistry Laboratory, Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata 700 032, India.
| | - Gopinatha Suresh Kumar
- Biophysical Chemistry Laboratory, Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata 700 032, India.
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22
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Li T, Cheng Z, Cao L, Jiang X, Fan L. Interactions of two food colourants with BSA: Analysis by Debye-Hückel theory. Food Chem 2016; 211:198-205. [PMID: 27283623 DOI: 10.1016/j.foodchem.2016.05.053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 05/08/2016] [Accepted: 05/09/2016] [Indexed: 01/12/2023]
Abstract
We have focused on exploring pH- and ionic strength-modulated binding of acid red 1 (AR1) and acid green 50 (AG50) with bovine serum albumin (BSA) by fluorescence, UV-vis absorption and FTIR spectra. The results implied that the quenching mechanism of BSA-AR1/AG50 system was a static quenching, electrostatic force dominated the formation of BSA-AR1/AG50 complex, and the binding affinity of AR1 was greater than that of AG50 on the subdomain IIA of BSA. Moreover, their true thermodynamic binding constant (Keq), true free energy change (ΔG(0)I→0), and effective charge (ZP) in the anion receptor pocket of BSA were calculated using Debye-Hückel limiting law. The local charge bound by AR1/AG50 rather than the overall or surface charge of BSA played a key role in determining their interaction strength. Besides, the thermal and structural stabilization of BSA was discussed by analyzing the changes of Tm and Hurea without/with the addition of AR1/AG50, respectively.
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Affiliation(s)
- Tian Li
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637002, PR China
| | - Zhengjun Cheng
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637002, PR China.
| | - Lijun Cao
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637002, PR China
| | - Xiaohui Jiang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637002, PR China
| | - Lei Fan
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, PR China.
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23
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Manivel P, Paulpandi M, Murugan K, Benelli G, Ilanchelian M. Probing the interaction of thionine with human serum albumin by multispectroscopic studies and its in vitro cytotoxic activity toward MCF-7 breast cancer cells. J Biomol Struct Dyn 2016; 35:3012-3031. [DOI: 10.1080/07391102.2016.1235513] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Perumal Manivel
- Department of Chemistry, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | - Manickam Paulpandi
- Proteomics Lab, Department of Zoology, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | - Kadarkarai Murugan
- Proteomics Lab, Department of Zoology, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | - Giovanni Benelli
- Insect Behavior Group, Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, Pisa 56124, Italy
- The BioRobotics Institute, Sant’Anna School of Advanced Studies, Viale Rinaldo Piaggio 34, Pontedera 56025, Italy
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24
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Wang Z, Shan Y, Xu L, Wu G, Lu X. Development and application of the tartrazine voltammetric sensors based on molecularly imprinted polymers. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2016. [DOI: 10.1080/1023666x.2016.1244001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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25
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Exploration of electrostatic interaction in the hydrophobic pocket of lysozyme: Importance of ligand-induced perturbation of the secondary structure on the mode of binding of exogenous ligand and possible consequences. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 161:253-65. [DOI: 10.1016/j.jphotobiol.2016.05.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Accepted: 05/09/2016] [Indexed: 11/17/2022]
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26
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Das I, Panja S, Halder M. Modulation and Salt-Induced Reverse Modulation of the Excited-State Proton-Transfer Process of Lysozymized Pyranine: The Contrasting Scenario of the Ground-State Acid–Base Equilibrium of the Photoacid. J Phys Chem B 2016; 120:7076-87. [DOI: 10.1021/acs.jpcb.6b04111] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Ishita Das
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Sudipta Panja
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Mintu Halder
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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27
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Interplay of multiple interaction forces: Binding of tyrosine kinase inhibitor nintedanib with human serum albumin. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 157:70-6. [DOI: 10.1016/j.jphotobiol.2016.02.009] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 11/09/2015] [Accepted: 02/04/2016] [Indexed: 01/24/2023]
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28
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Li T, Cheng Z, Cao L, Jiang X. Comparison of interactions between three food colorants and BSA. Food Chem 2016; 194:740-8. [DOI: 10.1016/j.foodchem.2015.08.067] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Revised: 08/07/2015] [Accepted: 08/18/2015] [Indexed: 10/23/2022]
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29
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Bushuev MB, Pishchur DP, Nikolaenkova EB, Krivopalov VP. Compensation effects and relation between the activation energy of spin transition and the hysteresis loop width for an iron(ii) complex. Phys Chem Chem Phys 2016; 18:16690-9. [DOI: 10.1039/c6cp01892k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Wide thermal hysteresis loops for iron(ii) spin crossover complexes are associated with high activation barriers: the higher the activation barrier, the wider the hysteresis loop for a series of related spin crossover systems.
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Affiliation(s)
- Mark B. Bushuev
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
- Novosibirsk State University
| | - Denis P. Pishchur
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
| | - Elena B. Nikolaenkova
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
| | - Viktor P. Krivopalov
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
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30
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Basu A, Suresh Kumar G. Thermodynamics of the interaction of the food additive tartrazine with serum albumins: A microcalorimetric investigation. Food Chem 2015; 175:137-42. [DOI: 10.1016/j.foodchem.2014.11.141] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Revised: 10/29/2014] [Accepted: 11/25/2014] [Indexed: 11/29/2022]
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31
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Masone D, Chanforan C. Study on the interaction of artificial and natural food colorants with human serum albumin: A computational point of view. Comput Biol Chem 2015; 56:152-8. [PMID: 25935119 DOI: 10.1016/j.compbiolchem.2015.04.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 03/13/2015] [Accepted: 04/16/2015] [Indexed: 01/26/2023]
Abstract
Due to the high amount of artificial food colorants present in infants' diets, their adverse effects have been of major concern among the literature. Artificial food colorants have been suggested to affect children's behavior, being hyperactivity the most common disorder. In this study we compare binding affinities of a group of artificial colorants (sunset yellow, quinoline yellow, carmoisine, allura red and tartrazine) and their natural industrial equivalents (carminic acid, curcumin, peonidin-3-glucoside, cyanidin-3-glucoside) to human serum albumin (HSA) by a docking approach and further refinement through atomistic molecular dynamics simulations. Due to the protein-ligand conformational interface complexity, we used collective variable driven molecular dynamics to refine docking predictions and to score them according to a hydrogen-bond criterion. With this protocol, we were able to rank ligand affinities to HSA and to compare between the studied natural and artificial food additives. Our results show that the five artificial colorants studied bind better to HSA than their equivalent natural options, in terms of their H-bonding network, supporting the hypothesis of their potential risk to human health.
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Affiliation(s)
- Diego Masone
- CONICET, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Padre Jorge Contreras 1300, Mendoza 5500, Argentina.
| | - Céline Chanforan
- Chr. Hansen France SAS, 92 avenue des Baronnes, 34730 Prades-le-lez, France
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32
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Datta S, Halder M. Detailed Scrutiny of the Anion Receptor Pocket in Subdomain IIA of Serum Proteins toward Individual Response to Specific Ligands: HSA-Pocket Resembles Flexible Biological Slide-Wrench Unlike BSA. J Phys Chem B 2014; 118:6071-85. [DOI: 10.1021/jp501547r] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Shubhashis Datta
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Mintu Halder
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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33
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Yang H, Liu Q, Zhao L, Yuan Y, Fan D, Deng J, Zhang R. Fluorescence Spectroscopic Studies on the Interaction of Oleanolic Acid and its Triterpenoid Saponins Derivatives with Two Serum Albumins. J SOLUTION CHEM 2014. [DOI: 10.1007/s10953-014-0163-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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34
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Mi R, Hu YJ, Fan XY, Ouyang Y, Bai AM. Exploring the site-selective binding of jatrorrhizine to human serum albumin: spectroscopic and molecular modeling approaches. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 117:163-169. [PMID: 23988532 DOI: 10.1016/j.saa.2013.08.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 07/19/2013] [Accepted: 08/02/2013] [Indexed: 06/02/2023]
Abstract
This paper exploring the site-selective binding of jatrorrhizine to human serum albumin (HSA) under physiological conditions (pH=7.4). The investigation was carried out using fluorescence spectroscopy, UV-vis spectroscopy, and molecular modeling. The results of fluorescence quenching and UV-vis absorption spectra experiments indicated the formation of the complex of HSA-jatrorrhizine. Binding parameters calculating from Stern-Volmer method and Scatchard method were calculated at 298, 304 and 310 K, with the corresponding thermodynamic parameters ΔG, ΔH and ΔS as well. Binding parameters calculating from Stern-Volmer method and Scatchard method showed that jatrorrhizine bind to HSA with the binding affinities of the order 10(4) L mol(-1). The thermodynamic parameters studies revealed that the binding was characterized by negative enthalpy and positive entropy changes and the electrostatic interactions play a major role for jatrorrhizine-HSA association. Site marker competitive displacement experiments and molecular modeling calculation demonstrating that jatrorrhizine is mainly located within the hydrophobic pocket of the subdomain IIIA of HSA. Furthermore, the synchronous fluorescence spectra suggested that the association between jatrorrhizine and HSA changed molecular conformation of HSA.
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Affiliation(s)
- Ran Mi
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Department of Chemistry, Hubei Normal University, Huangshi 435002, PR China
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35
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Li X, Wang G, Chen D, Lu Y. Binding of ascorbic acid and α-tocopherol to bovine serum albumin: a comparative study. ACTA ACUST UNITED AC 2014; 10:326-37. [DOI: 10.1039/c3mb70373h] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Bolel P, Datta S, Mahapatra N, Halder M. Exploration of pH-Dependent Behavior of the Anion Receptor Pocket of Subdomain IIA of HSA: Determination of Effective Pocket Charge Using the Debye–Hückel Limiting Law. J Phys Chem B 2013; 118:26-36. [DOI: 10.1021/jp407057f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Priyanka Bolel
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, India
| | - Shubhashis Datta
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, India
| | - Niharendu Mahapatra
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, India
| | - Mintu Halder
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, India
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37
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pH-insensitive electrostatic interaction of carmoisine with two serum proteins: A possible caution on its uses in food and pharmaceutical industry. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2013; 124:50-62. [DOI: 10.1016/j.jphotobiol.2013.04.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Revised: 04/05/2013] [Accepted: 04/11/2013] [Indexed: 11/20/2022]
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38
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Bolel P, Mahapatra N, Datta S, Halder M. Modulation of accessibility of subdomain IB in the pH-dependent interaction of bovine serum albumin with Cochineal Red A: a combined view from spectroscopy and docking simulations. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:4606-4613. [PMID: 23566243 DOI: 10.1021/jf305395n] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Our recent report on the binding of Cochineal Red A, a food dye, with HSA and BSA at pH 7.4 has revealed that electrostatic forces is the principal cause of interaction. In that study issues relating to complications arising out of modulation of dye binding affinity of BSA with pH had not been explored. Here we have further explored the interaction of Cochineal Red A with BSA in pH range 4.8-7.8. Surprisingly, this system behaves differently in the texture of interaction pattern at two extremes of studied pH range, unlike HSA. Importantly, the charge on the amino acid side chains in the binding pocket is likely to play a significant role.
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Affiliation(s)
- Priyanka Bolel
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
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39
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Biophysical studies on the interactions of jatrorrhizine with bovine serum albumin by spectroscopic and molecular modeling methods. Mol Biol Rep 2013; 40:4397-404. [DOI: 10.1007/s11033-013-2529-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Accepted: 04/29/2013] [Indexed: 01/08/2023]
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