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Fan SH, Wang WQ, Zhou YW, Gao XJ, Zhang Q, Zhang MH. Research on the Interaction Mechanism and Structural Changes in Human Serum Albumin with Hispidin Using Spectroscopy and Molecular Docking. Molecules 2024; 29:655. [PMID: 38338399 PMCID: PMC10856618 DOI: 10.3390/molecules29030655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/22/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
The interaction between human serum albumin (HSA) and hispidin, a polyketide abundantly present in both edible and therapeutic mushrooms, was explored through multispectral methods, hydrophobic probe assays, location competition trials, and molecular docking simulations. The results of fluorescence quenching analysis showed that hispidin quenched the fluorescence of HSA by binding to it via a static mechanism. The binding of hispidin and HSA was validated further by synchronous fluorescence, three-dimensional fluorescence, and UV/vis spectroscopy analysis. The apparent binding constant (Ka) at different temperatures, the binding site number (n), the quenching constants (Ksv), the dimolecular quenching rate constants (Kq), and the thermodynamic parameters (∆G, ∆H, and ∆S) were calculated. Among these parameters, ∆H and ∆S were determined to be 98.75 kJ/mol and 426.29 J/(mol·K), respectively, both exhibiting positive values. This observation suggested a predominant contribution of hydrophobic forces in the interaction between hispidin and HSA. By employing detergents (SDS and urea) and hydrophobic probes (ANS), it became feasible to quantify alterations in Ka and surface hydrophobicity, respectively. These measurements confirmed the pivotal role of hydrophobic forces in steering the interaction between hispidin and HSA. Site competition experiments showed that there was an interaction between hispidin and HSA molecules at site I, which situates the IIA domains of HSA, which was further confirmed by the molecular docking simulation.
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Affiliation(s)
- Si-Hua Fan
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, No. 1, Kechuang Road, Maonan District, Maoming 525000, China; (S.-H.F.); (W.-Q.W.)
- College of Animal Science and Technology, Yangtze University, 88 Jingmi Road, Jingzhou District, Jingzhou 434025, China; (Y.-W.Z.); (X.-J.G.)
| | - Wen-Qiang Wang
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, No. 1, Kechuang Road, Maonan District, Maoming 525000, China; (S.-H.F.); (W.-Q.W.)
- College of Animal Science and Technology, Yangtze University, 88 Jingmi Road, Jingzhou District, Jingzhou 434025, China; (Y.-W.Z.); (X.-J.G.)
| | - Yu-Wen Zhou
- College of Animal Science and Technology, Yangtze University, 88 Jingmi Road, Jingzhou District, Jingzhou 434025, China; (Y.-W.Z.); (X.-J.G.)
| | - Xue-Jun Gao
- College of Animal Science and Technology, Yangtze University, 88 Jingmi Road, Jingzhou District, Jingzhou 434025, China; (Y.-W.Z.); (X.-J.G.)
| | - Qiang Zhang
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, No. 1, Kechuang Road, Maonan District, Maoming 525000, China; (S.-H.F.); (W.-Q.W.)
| | - Ming-Hui Zhang
- College of Animal Science and Technology, Yangtze University, 88 Jingmi Road, Jingzhou District, Jingzhou 434025, China; (Y.-W.Z.); (X.-J.G.)
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Altin-Yavuzarslan G, Brooks SM, Yuan SF, Park JO, Alper HS, Nelson A. Additive Manufacturing of Engineered Living Materials with Bio-augmented Mechanical Properties and Resistance to Degradation. ADVANCED FUNCTIONAL MATERIALS 2023; 33:2300332. [PMID: 37810281 PMCID: PMC10553028 DOI: 10.1002/adfm.202300332] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Indexed: 10/10/2023]
Abstract
Engineered living materials (ELMs) combine living cells with polymeric matrices to yield unique materials with programmable functions. While the cellular platform and the polymer network determine the material properties and applications, there are still gaps in our ability to seamlessly integrate the biotic (cellular) and abiotic (polymer) components into singular material, then assemble them into devices and machines. Herein, we demonstrated the additive-manufacturing of ELMs wherein bioproduction of metabolites from the encapsulated cells enhanced the properties of the surrounding matrix. First, we developed aqueous resins comprising bovine serum albumin (BSA) and poly(ethylene glycol diacrylate) (PEGDA) with engineered microbes for vat photopolymerization to create objects with a wide array of 3D form factors. The BSA-PEGDA matrix afforded hydrogels that were mechanically stiff and tough for use in load-bearing applications. Second, we demonstrated the continuous in situ production of L-DOPA, naringenin, and betaxanthins from the engineered cells encapsulated within the BSA-PEGDA matrix. These microbial metabolites bioaugmented the properties of the BSA-PEGDA matrix by enhancing the stiffness (L-DOPA) or resistance to enzymatic degradation (betaxanthin). Finally, we demonstrated the assembly of the 3D printed ELM components into mechanically functional bolts and gears to showcase the potential to create functional ELMs for synthetic living machines.
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Affiliation(s)
- Gokce Altin-Yavuzarslan
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington 98195, United States
- Department of Chemistry, University of Washington, Box 351700, Seattle, WA, USA
| | - Sierra M. Brooks
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Shuo-Fu Yuan
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX, USA
| | - James O. Park
- Department of Surgery, University of Washington, Seattle, Washington 98195, United States
| | - Hal S. Alper
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, USA
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX, USA
| | - Alshakim Nelson
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington 98195, United States
- Department of Chemistry, University of Washington, Box 351700, Seattle, WA, USA
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3
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Huang DS, Liu XR, Zhao SS, Yang ZW. Crystal structures of three transition metal complexes with salicylaldehyde-4-hydroxy phenylacetyl acylhydrazone and their interactions with CT-DNA and BSA. Polyhedron 2022. [DOI: 10.1016/j.poly.2021.115516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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4
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Li X, Liu H, Wu X, Xu R, Ma X, Zhang C, Song Z, Peng Y, Ni T, Xu Y. Exploring the interactions of naringenin and naringin with trypsin and pepsin: Experimental and computational modeling approaches. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 258:119859. [PMID: 33957444 DOI: 10.1016/j.saa.2021.119859] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 04/11/2021] [Accepted: 04/16/2021] [Indexed: 06/12/2023]
Abstract
Naringenin and naringin are two natural compounds with important health benefits, whether as food or drug. It is necessary to study the interactions between naringenin/naringin and digestive proteases, such as trypsin and pepsin. In this study, the bindings of naringenin and naringin to trypsin and pepsin were investigated using multi-spectroscopy analysis and computational modeling approaches. Fluorescence experiments indicate that both naringenin and naringin can quench the intrinsic fluorescence of trypsin/pepsin via static quenching mechanism. Naringin binds trypsin/pepsin in a more firmly way than naringenin. Thermodynamic analysis reveals that the interactions of naringenin/naringin and trypsin/pepsin are synergistically driven by enthalpy and entropy, and the major driving forces are hydrophobic, electrostatic interactions and hydrogen bonding. Synchronous fluorescence spectroscopy, circular dichroism spectroscopy and FT-IR show that naringenin/naringin may induce microenvironmental and conformational changes of trypsin and pepsin. Molecular docking reveals that naringenin binds in the close vicinity of the active site (Ser-195) of trypsin and Asp-32 (the catalytic activity of pepsin) appears in naringin-pepsin system. The direct interactions between naringenin or naringin and catalytic amino acid residues will inhibit the catalytic activity of trypsin and pepsin, respectively. The results of molecular dynamic simulation validate the reliability of the docking results.
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Affiliation(s)
- Xiangrong Li
- Department of Medical Chemistry, Key Laboratory of Medical Molecular Probes, School of Basic Medicine, Xinxiang Medical University, Xinxiang, Henan 453003, PR China
| | - Hongyi Liu
- School of Medical Engineering, Xinxiang Medical University, Xinxiang, Henan 453003, PR China
| | - Xinzhe Wu
- Grade 2020, Clinical Medicine, School of Basic Medicine, Xinxiang Medical University, Xinxiang, Henan 453003, PR China
| | - Ruonan Xu
- Department of Medical Chemistry, Key Laboratory of Medical Molecular Probes, School of Basic Medicine, Xinxiang Medical University, Xinxiang, Henan 453003, PR China
| | - Xiaoyi Ma
- Grade 2018, Pharmaceutics, School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, PR China
| | - Congxiao Zhang
- Grade 2018, Pharmaceutics, School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, PR China
| | - Zhizhi Song
- Grade 2020, Clinical Medicine, School of Basic Medicine, Xinxiang Medical University, Xinxiang, Henan 453003, PR China
| | - Yanru Peng
- Grade 2017, Clinical Pharmacy, School of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, PR China
| | - Tianjun Ni
- Department of Medical Chemistry, Key Laboratory of Medical Molecular Probes, School of Basic Medicine, Xinxiang Medical University, Xinxiang, Henan 453003, PR China
| | - Yongtao Xu
- School of Medical Engineering, Xinxiang Medical University, Xinxiang, Henan 453003, PR China.
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Synthesis, characterization, DFT calculations, protein binding and molecular docking studies of mononuclear dioxomolybdenum(VI) complexes with ONS donor ligand. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130192] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Murugesan A, Singh T, Rajamanikandan R, Vinu M, Ilanchelian M, Lin CH, Gengan RM. Synthesis, spectroscopic, DFT, HSA binding and docking studies of new 1,5-bis(4-chlorophenyl)-3-(2-(4-methylpiperazin-1-yl)quinolin-3-yl)pentane-1,5-dione. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129260] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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7
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López-Yerena A, Perez M, Vallverdú-Queralt A, Escribano-Ferrer E. Insights into the Binding of Dietary Phenolic Compounds to Human Serum Albumin and Food-Drug Interactions. Pharmaceutics 2020; 12:E1123. [PMID: 33233356 PMCID: PMC7700232 DOI: 10.3390/pharmaceutics12111123] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 02/06/2023] Open
Abstract
The distribution of drugs and dietary phenolic compounds in the systemic circulation de-pends on, among other factors, unspecific/specific reversible binding to plasma proteins such as human serum albumin (HSA). Phenolic substances, present in plant-derived feeds, foods, beverages, herbal medicines, and dietary supplements, are of great interest due to their biological activity. Recently, considerable research has been directed at the formation of phenol-HSA complexes, focusing above all on structure-affinity relationships. The nucleophilicity and planarity of molecules can be altered by the number and position of hydroxyl groups on the aromatic ring and by hydrogenation. Binding affinities towards HSA may also differ between phenolic compounds in their native form and conjugates derived from phase II reactions. On the other hand, food-drug interactions may increase the concentration of free drugs in the blood, affecting their transport and/or disposition and in some cases provoking adverse or toxic effects. This is caused mainly by a decrease in drug binding affinities for HSA in the presence of flavonoids. Accordingly, to avoid the side effects arising from changes in plasma protein binding, the intake of flavonoid-rich food and beverages should be taken into consideration when treating certain pathologies.
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Affiliation(s)
- Anallely López-Yerena
- Department of Nutrition, Food Science and Gastronomy XaRTA, Faculty of Pharmacy and Food Sciences, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, 08028 Barcelona, Spain; (A.L.-Y.); (M.P.); (A.V.-Q.)
| | - Maria Perez
- Department of Nutrition, Food Science and Gastronomy XaRTA, Faculty of Pharmacy and Food Sciences, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, 08028 Barcelona, Spain; (A.L.-Y.); (M.P.); (A.V.-Q.)
- Laboratory of Organic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain
| | - Anna Vallverdú-Queralt
- Department of Nutrition, Food Science and Gastronomy XaRTA, Faculty of Pharmacy and Food Sciences, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, 08028 Barcelona, Spain; (A.L.-Y.); (M.P.); (A.V.-Q.)
- CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Institute of Health Carlos III, 28029 Madrid, Spain
| | - Elvira Escribano-Ferrer
- CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Institute of Health Carlos III, 28029 Madrid, Spain
- Pharmaceutical Nanotechnology Group I+D+I Associated Unit to CSIC, Biopharmaceutics and Pharmacokinetics Unit, Department of Pharmacy and Pharmaceutical Technology and Physical Chemistry, Institute of Nanoscience and Nanotechnology (IN2UB), Pharmacy and Food Sciences School, University of Barcelona, 08028 Barcelona, Spain
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8
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Mechanistic inhibition of non-enzymatic glycation and aldose reductase activity by naringenin: Binding, enzyme kinetics and molecular docking analysis. Int J Biol Macromol 2020; 159:87-97. [DOI: 10.1016/j.ijbiomac.2020.04.226] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/29/2020] [Accepted: 04/25/2020] [Indexed: 11/18/2022]
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Yusuff O, Abdul
Raheem MAO, Mukadam AA, Sulaimon RO. Kinetics and Mechanism of the Antioxidant Activities of C. olitorius and V. amygdalina by Spectrophotometric and DFT Methods. ACS OMEGA 2019; 4:13671-13680. [PMID: 31497684 PMCID: PMC6714516 DOI: 10.1021/acsomega.9b00851] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 07/31/2019] [Indexed: 05/08/2023]
Abstract
The kinetics and mechanism of the antioxidant activities of the methanolic extract of the leaves of two vegetables [Corchorus olitorius (C. olitorius) and Vernonia amygdalina (V. amygdalina)] have been studied using experimental and theoretical approaches. The kinetics (second order and pseudo-first order) of the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activities of the leaf extracts at varying times (30-90 min) were determined using the UV-visible spectrophotometry method at λmax = 517 nm, whereas the mechanism was studied by density functional theory at two levels of functionals (B3LYP and LC-ωPBE) using bond dissociation enthalpy and adiabatic ionization potential values. Molecular properties such as the highest occupied molecular orbital, lowest unoccupied molecular orbital, electronegativity (χ), electrophilicity (ω), hardness (η), and softness (S) of the predominant phenolic antioxidants were also compared. The second-order kinetics is favored by both plants rather than pseudo-first order; however, V. amygdalina with a second-order rate constant k 2 of 0.0152 (mM)-1 min-1 is faster in scavenging DPPH radicals than C. olitorius with a k 2 value of 0.0093 (mM)-1min-1. Chlorogenic acid and luteolin-7-O-β-glucuronide, which are the most abundant phenolic acid antioxidant in C. olitorius and V. amygdalina, both preferably scavenge the DPPH radical via a hydrogen atom transfer mechanism. This is evident from their lower bond dissociation enthalpy values than the adiabatic ionization potential values. Successful molecular docking of these phenolic compounds indicates that both compounds form favorable interactions with the therapeutic target, xanthine oxidase.
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Affiliation(s)
- Olaniyi
K. Yusuff
- Department
of Chemistry, Faculty of Physical Sciences, University of Ilorin, PMB 1515 Ilorin, Nigeria
| | - Modinah Adenike O. Abdul
Raheem
- Department
of Chemistry, Faculty of Physical Sciences, University of Ilorin, PMB 1515 Ilorin, Nigeria
- E-mail: ., . Tel: +2348035952356
| | - Abdulrahman A. Mukadam
- Department
of Chemistry, Faculty of Physical Sciences, University of Ilorin, PMB 1515 Ilorin, Nigeria
| | - Ridwan Oladayo Sulaimon
- Department
of Chemistry, King Fahd University of Petroleum
and Minerals, P.O. Box 5061, 31261 Dhahran, Saudi Arabia
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Llabot JM, Luis de Redin I, Agüeros M, Dávila Caballero MJ, Boiero C, Irache JM, Allemandi D. In vitro characterization of new stabilizing albumin nanoparticles as a potential topical drug delivery system in the treatment of corneal neovascularization (CNV). J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.04.042] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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11
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Seal P, Sikdar J, Ghosh N, Biswas P, Haldar R. Exploring the binding dynamics of etoricoxib with human hemoglobin: A spectroscopic, calorimetric, and molecular modeling approach. J Biomol Struct Dyn 2018; 37:3018-3028. [DOI: 10.1080/07391102.2018.1508369] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Paromita Seal
- Department of Physiology, University Colleges of Science and Technology, University of Calcutta, Kolkata, India
| | - Jyotirmoy Sikdar
- Department of Physiology, University Colleges of Science and Technology, University of Calcutta, Kolkata, India
| | - Niladri Ghosh
- Department of Physiology, University Colleges of Science and Technology, University of Calcutta, Kolkata, India
| | - Payel Biswas
- Department of Physiology, University Colleges of Science and Technology, University of Calcutta, Kolkata, India
| | - Rajen Haldar
- Department of Physiology, University Colleges of Science and Technology, University of Calcutta, Kolkata, India
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Sasmal M, Bhowmick R, Musha Islam AS, Bhuiya S, Das S, Ali M. Domain-Specific Association of a Phenanthrene-Pyrene-Based Synthetic Fluorescent Probe with Bovine Serum Albumin: Spectroscopic and Molecular Docking Analysis. ACS OMEGA 2018; 3:6293-6304. [PMID: 31458811 PMCID: PMC6644396 DOI: 10.1021/acsomega.8b00186] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 06/01/2018] [Indexed: 05/20/2023]
Abstract
In this report, the interaction between a phenanthrene-pyrene-based fluorescent probe (PPI) and bovine serum albumin (BSA), a transport protein, has been explored by steady-state emission spectroscopy, fluorescence anisotropy, far-ultraviolet circular dichroism (CD), time-resolved spectral measurements, and molecular docking simulation study. The blue shift along with emission enhancement indicates the interaction between PPI and BSA. The binding of the probe causes quenching of BSA fluorescence through both static and dynamic quenching mechanisms, revealing a 1:1 interaction, as delineated from Benesi-Hildebrand plot, with a binding constant of ∼105 M-1, which is in excellent agreement with the binding constant extracted from fluorescence anisotropy measurements. The thermodynamic parameters, ΔH°, ΔS°, and ΔG°, as determined from van't Hoff relationship indicate the predominance of van der Waals/extensive hydrogen-bonding interactions for the binding phenomenon. The molecular docking and site-selective binding studies reveal the predominant binding of PPI in subdomain IIA of BSA. From the fluorescence resonance energy transfer study, the average distance between tryptophan 213 of the BSA donor and the PPI acceptor is found to be 3.04 nm. CD study demonstrates the reduction of α-helical content of BSA protein on binding with PPI, clearly indicating the change of conformation of BSA.
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Murugesan A, Gengan RM, Rajamanikandan R, Ilanchelian M. One-pot synthesis via 1, 3-dipolar cycloaddition reaction to piperazinyl-quinolinyl dispiro heterocyclic derivatives and spectrofluorometric and molecular docking studies on their binding with human serum albumin. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.08.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Seal P, Sikdar J, Roy A, Haldar R. Binding of ibuprofen to human hemoglobin: elucidation of their molecular recognition by spectroscopy, calorimetry, and molecular modeling techniques. J Biomol Struct Dyn 2017; 36:3137-3154. [DOI: 10.1080/07391102.2017.1384399] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Paromita Seal
- Department of Physiology, University Colleges of Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata 700 009, India
| | - Jyotirmoy Sikdar
- Department of Physiology, University Colleges of Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata 700 009, India
| | - Amartya Roy
- Department of Physiology, University Colleges of Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata 700 009, India
| | - Rajen Haldar
- Department of Physiology, University Colleges of Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata 700 009, India
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Probing the interaction between 7-O-β-d-glucopyranosyl-6-(3-methylbut-2-enyl)-5,4′-dihydroxyflavonol with bovine serum albumin (BSA). J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2016.12.015] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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16
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Pawar SK, Jaldappagari S. Probing the mechanism of interaction of metoprolol succinate with human serum albumin by spectroscopic and molecular docking analysis. LUMINESCENCE 2017; 32:942-951. [PMID: 28233399 DOI: 10.1002/bio.3275] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 10/27/2016] [Accepted: 12/08/2016] [Indexed: 11/09/2022]
Abstract
In the present work, the mechanism of the interaction between a β1 receptor blocker, metoprolol succinate (MS) and human serum albumin (HSA) under physiological conditions was investigated by spectroscopic techniques, namely fluorescence, Fourier transform infra-red spectroscopy (FT-IR), fluorescence lifetime decay and circular dichroism (CD) as well as molecular docking and cyclic voltammetric methods. The fluorescence and lifetime decay results indicated that MS quenched the intrinsic intensity of HSA through a static quenching mechanism. The Stern-Volmer quenching constants and binding constants for the MS-HSA system at 293, 298 and 303 K were obtained from the Stern-Volmer plot. Thermodynamic parameters for the interaction of MS with HSA were evaluated; negative values of entropy change (ΔG°) indicated the spontaneity of the MS and HSA interaction. Thermodynamic parameters such as negative ΔH° and positive ΔS° values revealed that hydrogen bonding and hydrophobic forces played a major role in MS-HSA interaction and stabilized the complex. The binding site for MS in HSA was identified by competitive site probe experiments and molecular docking studies. These results indicated that MS was bound to HSA at Sudlow's site I. The efficiency of energy transfer and the distance between the donor (HSA) and acceptor (MS) was calculated based on the theory of Fosters' resonance energy transfer (FRET). Three-dimensional fluorescence spectra and CD results revealed that the binding of MS to HSA resulted in an obvious change in the conformation of HSA. Cyclic voltammograms of the MS-HSA system also confirmed the interaction between MS and HSA. Furthermore, the effects of metal ions on the binding of MS to HSA were also studied.
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Affiliation(s)
- Suma K Pawar
- Department of Chemistry, Karnatak University, Dharwad, India
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17
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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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Seal P, Sikdar J, Roy A, Haldar R. Acetaminophen interacts with human hemoglobin: optical, physical and molecular modeling studies. J Biomol Struct Dyn 2016; 35:1307-1321. [DOI: 10.1080/07391102.2016.1180262] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Paromita Seal
- Department of Physiology, University Colleges of Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata 700 009, India
| | - Jyotirmoy Sikdar
- Department of Physiology, University Colleges of Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata 700 009, India
| | - Amartya Roy
- Department of Physiology, University Colleges of Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata 700 009, India
| | - Rajen Haldar
- Department of Physiology, University Colleges of Science and Technology, University of Calcutta, 92, A.P.C. Road, Kolkata 700 009, India
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19
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Glycation of human serum albumin affects its binding affinity towards (−)-epigallocatechin gallate. J INCL PHENOM MACRO 2016. [DOI: 10.1007/s10847-016-0619-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Dorraji PS, Jalali F. Spectral, electrochemical, and molecular docking evaluation of the interaction of the anti-hyperthyroid drug methimazole with DNA. CAN J CHEM 2015. [DOI: 10.1139/cjc-2014-0594] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The interaction of native calf thymus DNA with the anti-hyperthyroid drug methimazole was investigated by different spectroscopic (UV-Vis spectrophotometry, spectroflourimetry, and circular dichroism), electrochemical (cyclic voltammetry and chronoamperometry) methods, and molecular docking calculations. The binding constant (Kb) obtained from the spectrophotometric method was 9.67 × 103 L mol−1, comparable with that of groove binding molecules. The binding mode was further investigated by following the competition between Hoechst 33258 and methimazole for DNA grooves by spectrofluorimetry. Consistent results were obtained from all experimental methods used in this study. Finally, theoretical calculations using the molecular docking method confirmed the experimental results.
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Affiliation(s)
- Parisa S. Dorraji
- Department of Chemistry, Razi University, 67346 Kermanshah, Iran
- Department of Chemistry, Razi University, 67346 Kermanshah, Iran
| | - Fahimeh Jalali
- Department of Chemistry, Razi University, 67346 Kermanshah, Iran
- Department of Chemistry, Razi University, 67346 Kermanshah, Iran
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Naik KM, Nandibewoor ST. Investigation into the interaction of methylparaben and erythromycin with human serum albumin using multispectroscopic methods. LUMINESCENCE 2015; 31:433-441. [DOI: 10.1002/bio.2979] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 05/12/2015] [Accepted: 06/21/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Keerti M. Naik
- Post Graduate Department of Studies in Chemistry; Karnatak University; Dharwad 580 003 India
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22
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Dangkoob F, Housaindokht MR, Asoodeh A, Rajabi O, Rouhbakhsh Zaeri Z, Verdian Doghaei A. Spectroscopic and molecular modeling study on the separate and simultaneous bindings of alprazolam and fluoxetine hydrochloride to human serum albumin (HSA): with the aim of the drug interactions probing. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:1106-1119. [PMID: 25300043 DOI: 10.1016/j.saa.2014.08.149] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 07/20/2014] [Accepted: 08/31/2014] [Indexed: 06/04/2023]
Abstract
The objective of the present research is to study the interaction of separate and simultaneous of alprazolam (ALP) and fluoxetine hydrochloride (FLX) with human serum albumin (HSA) in phosphate buffer (pH 7.4) using different kinds of spectroscopic, cyclic voltammetry and molecular modeling techniques. The absorbance spectra of protein, drugs and protein-drug showed complex formation between the drugs and HSA. Fluorescence analysis demonstrated that ALP and FLX could quench the fluorescence spectrum of HSA and demonstrated the conformational change of HSA in the presence of both drugs. Also, fluorescence quenching mechanism of HSA-drug complexes both separately and simultaneously was suggested as static quenching. The analysis of UV absorption data and the fluorescence quenching of HSA in the binary and ternary systems showed that FLX decreased the binding affinity between ALP and HSA. On the contrary, ALP increased the binding affinity of FLX and HSA. The results of synchronous fluorescence and three-dimensional fluorescence spectra indicated that the binding of drugs to HSA would modify the microenvironment around the Trp and Tyr residues and the conformation of HSA. The distances between Trp residue and the binding sites of the drugs were estimated according to the Förster theory, and it was demonstrated that non-radiative energy transfer from HSA to the drugs occurred with a high probability. Moreover, according to CV measurements, the decrease of peak current in the cyclic voltammogram of the both drugs in the presence of HSA revealed that they interacted with albumin and binding constants were calculated for binary systems which were in agreement with the binding constants obtained from UV absorption and fluorescence spectroscopy. The prediction of the best binding sites of ALP and FLX in binary and ternary systems in molecular modeling approach was done using of Gibbs free energy.
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Affiliation(s)
- Faeze Dangkoob
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mohmmad Reza Housaindokht
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran; Research and Technology Center of Biomolecules, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Ahmad Asoodeh
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran; Research and Technology Center of Biomolecules, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Omid Rajabi
- Medical Chemistry Department, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Asma Verdian Doghaei
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
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Manivel P, Anandakumar S, Ilanchelian M. Exploring the interaction of the photodynamic therapeutic agent thionine with bovine serum albumin: multispectroscopic and molecular docking studies. LUMINESCENCE 2014; 30:729-39. [DOI: 10.1002/bio.2812] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 09/24/2014] [Accepted: 10/06/2014] [Indexed: 01/02/2023]
Affiliation(s)
- Perumal Manivel
- Department of Chemistry; Bharathiar University; Coimbatore India
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24
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β-Lactoglobulin–naringenin complexes: Nano-vehicles for the delivery of a hydrophobic nutraceutical. Food Hydrocoll 2014. [DOI: 10.1016/j.foodhyd.2014.02.023] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Kumari M, Maurya JK, Tasleem M, Singh P, Patel R. Probing HSA-ionic liquid interactions by spectroscopic and molecular docking methods. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2014; 138:27-35. [DOI: 10.1016/j.jphotobiol.2014.05.009] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 04/19/2014] [Accepted: 05/12/2014] [Indexed: 01/08/2023]
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26
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Khan MK, Zill-E-Huma, Dangles O. A comprehensive review on flavanones, the major citrus polyphenols. J Food Compost Anal 2014. [DOI: 10.1016/j.jfca.2013.11.004] [Citation(s) in RCA: 225] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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27
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Sharma AS, Anandakumar S, Ilanchelian M. In vitro investigation of domain specific interactions of phenothiazine dye with serum proteins by spectroscopic and molecular docking approaches. RSC Adv 2014. [DOI: 10.1039/c4ra04630g] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In the present study the interaction of the chemotherapeutic agent, Azure A (AZA) with Human Serum Albumin (HSA) and Bovine Serum Albumin (BSA) was investigated by multi spectroscopic and molecular docking methods.
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Pal S, Saha C. A review on structure–affinity relationship of dietary flavonoids with serum albumins. J Biomol Struct Dyn 2013; 32:1132-47. [DOI: 10.1080/07391102.2013.811700] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Zhang X, Li L, Xu Z, Liang Z, Su J, Huang J, Li B. Investigation of the interaction of naringin palmitate with bovine serum albumin: spectroscopic analysis and molecular docking. PLoS One 2013; 8:e59106. [PMID: 23527100 PMCID: PMC3604151 DOI: 10.1371/journal.pone.0059106] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Accepted: 02/11/2013] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Bovine serum albumin (BSA) contains high affinity binding sites for several endogenous and exogenous compounds and has been used to replace human serum albumin (HSA), as these two compounds share a similar structure. Naringin palmitate is a modified product of naringin that is produced by an acylation reaction with palmitic acid, which is considered to be an effective substance for enhancing naringin lipophilicity. In this study, the interaction of naringin palmitate with BSA was characterised by spectroscopic and molecular docking techniques. METHODOLOGY/PRINCIPAL FINDINGS The goal of this study was to investigate the interactions between naringin palmitate and BSA under physiological conditions, and differences in naringin and naringin palmitate affinities for BSA were further compared and analysed. The formation of naringin palmitate-BSA was revealed by fluorescence quenching, and the Stern-Volmer quenching constant (KSV ) was found to decrease with increasing temperature, suggesting that a static quenching mechanism was involved. The changes in enthalpy (ΔH) and entropy (ΔS) for the interaction were detected at -4.11 ± 0.18 kJ·mol(-1) and -76.59 ± 0.32 J·mol(-1)·K(-1), respectively, which indicated that the naringin palmitate-BSA interaction occurred mainly through van der Waals forces and hydrogen bond formation. The negative free energy change (ΔG) values of naringin palmitate at different temperatures suggested a spontaneous interaction. Circular dichroism studies revealed that the α-helical content of BSA decreased after interacting with naringin palmitate. Displacement studies suggested that naringin palmitate was partially bound to site I (subdomain IIA) of the BSA, which was also substantiated by the molecular docking studies. CONCLUSIONS/SIGNIFICANCE In conclusion, naringin palmitate was transported by BSA and was easily removed afterwards. As a consequence, an extension of naringin applications for use in food, cosmetic and medicinal preparations may be clinically and practically significant, especially in the design of new naringin palmitate-inspired drugs.
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Affiliation(s)
- Xia Zhang
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, China
| | - Lin Li
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, China
- Guangdong Province Key Laboratory For Green Processing Of Natural Products and Product Safety, South China University of Technology, Guangzhou, China
| | - Zhenbo Xu
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, China
- Department of Microbial Pathogenesis, Dental School, University of Maryland, Baltimore, Maryland, United States of America
| | - Zhili Liang
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, China
| | - Jianyu Su
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, China
- Guangdong Province Key Laboratory For Green Processing Of Natural Products and Product Safety, South China University of Technology, Guangzhou, China
| | - Jianrong Huang
- School of Food Science, Guangdong Pharmaceutical University, Zhongshan, China
| | - Bing Li
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, China
- Guangdong Province Key Laboratory For Green Processing Of Natural Products and Product Safety, South China University of Technology, Guangzhou, China
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Singha Roy A, Pandey NK, Dasgupta S. Preferential binding of fisetin to the native state of bovine serum albumin: spectroscopic and docking studies. Mol Biol Rep 2013; 40:3239-53. [PMID: 23277393 DOI: 10.1007/s11033-012-2399-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Accepted: 12/17/2012] [Indexed: 11/25/2022]
Abstract
We have investigated the binding of the biologically important flavonoid fisetin with the carrier protein bovine serum albumin using multi-spectroscopic and molecular docking methods. The binding constants were found to be in the order of 10(4) M(-1) and the number of binding sites was determined as one. MALDI-TOF analyses showed that one fisetin molecule binds to a single bovine serum albumin (BSA) molecule which is also supported by fluorescence quenching studies. The negative Gibbs free energy change (∆G°) values point to a spontaneous binding process which occurs through the presence of electrostatic forces with hydrophobic association that results in a positive entropy change (+51.69 ± 1.18 J mol(-1) K(-1)). The unfolding and refolding of BSA in urea have been studied in absence and presence of fisetin using steady-state fluorescence and lifetime measurements. Urea denaturation studies indicate that fisetin is gradually released from its binding site on the protein. In the absence of urea, an increase in temperature that causes denaturation of the protein results in the release of fisetin from its bound state indicating that fisetin binds only to the native state of the protein. The circular dichroism (CD) and Fourier transform infrared (FTIR) spectroscopic studies showed an increase in % α-helix content of BSA after binding with fisetin. Site marker displacement studies in accordance with the molecular docking results suggested that fisetin binds in close proximity of the hydrophobic cavity in site 1 (subdomain IIA) of the protein. The PEARLS (Program of Energetic Analysis of Receptor Ligand System) has been used to estimate the interaction energy of fisetin with BSA and the results are in good correlation with the experimental findings.
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Affiliation(s)
- Atanu Singha Roy
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
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31
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Wang C, Chen Y, Hu M, Ding J, Xu C, Wang R. In vitro antioxidant activities of the polysaccharides from Tricholoma lobayense. Int J Biol Macromol 2012; 50:534-9. [DOI: 10.1016/j.ijbiomac.2012.01.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 12/26/2011] [Accepted: 01/08/2012] [Indexed: 11/25/2022]
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32
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Yao D, Yu J, Pan Y, Huang F, Bian H, Yu Q, Liang H. Spectroscopic Studies on the Binding of Kaempferol-3,7-α-L-rhamnopyranoside to Bovine Serum Albumin. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201180475] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Housaindokht MR, Rouhbakhsh Zaeri Z, Bahrololoom M, Chamani J, Bozorgmehr MR. Investigation of the behavior of HSA upon binding to amlodipine and propranolol: Spectroscopic and molecular modeling approaches. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 85:79-84. [PMID: 22024455 DOI: 10.1016/j.saa.2011.09.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2011] [Revised: 09/07/2011] [Accepted: 09/08/2011] [Indexed: 05/31/2023]
Abstract
The interaction between human serum albumin (HSA) and two drugs - amlodipine and propranolol - was investigated using fluorescence, UV absorption and circular dichroism (CD) spectroscopy. In addition, the binding site was established by applying molecular modeling technique. Fluorescence data suggest that amlodipine will quench the intrinsic fluorescence of HSA; whereas propranolol enhances the fluorescence of HSA. The binding constants for the interaction of amlodipine and propranolol with HSA were found to be 3.63×10(5)M(-1) and 2.29×10(4)M(-1), respectively. The percentage of secondary structure feature of each one of the HSA-bound drugs, i.e. the α-helix content, was estimated empirically by circular dichroism. The results indicated that amlodipine causes an increase, and that propranolol leads to a decrease in α-helix content of HSA. The spectroscopic analysis indicates that the binding mechanisms of the two drugs are different from each other. The data obtained by the molecular modeling study indicated that these drugs bind, with different affinity, to different sites located in subdomain IIA and IIIA.
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Wu X, Liu J, Wang Q, Xue W, Yao X, Zhang Y, Jin J. Spectroscopic and molecular modeling evidence of clozapine binding to human serum albumin at subdomain IIA. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 79:1202-1209. [PMID: 21640635 DOI: 10.1016/j.saa.2011.04.043] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2011] [Revised: 03/25/2011] [Accepted: 04/15/2011] [Indexed: 05/30/2023]
Abstract
Various spectroscopy and molecular docking methods were used to examine the binding of Clozapine (CLZ) to human serum albumin (HSA) in this paper. By monitoring the intrinsic fluorescence of single Trp214 residue and performing Dansylamide (DNSA) displacement measurement, the specific binding of CLZ in the vicinity of Sudlow's Site I of HSA has been clarified. An apparent distance of 27.3 Å between the Trp214 and CLZ was obtained via fluorescence resonance energy transfer (FRET) method. In addition, the changes in the secondary structure of HSA after its complexation with CLZ ligand were studied with CD spectroscopy, which indicate that CLZ does not has remarkable effect on the structure of the protein. Moreover, thermal denaturation experiment shows that the HSA-CLZ complexes are conformationally more stable. Finally, the binding details between CLZ and HSA were further confirmed by molecular docking studies, which revealed that CLZ was bound at subdomain IIA through multiple interactions, such as hydrophobic effect, van der Waals forces and hydrogen bonding.
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Affiliation(s)
- Xinhu Wu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China.
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Cheng H, Liu H, Bao W, Zou G. Studies on the interaction between docetaxel and human hemoglobin by spectroscopic analysis and molecular docking. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2011; 105:126-32. [PMID: 21924621 DOI: 10.1016/j.jphotobiol.2011.07.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Revised: 06/15/2011] [Accepted: 07/11/2011] [Indexed: 11/30/2022]
Abstract
The binding reaction between docetaxel (DTX) and human hemoglobin (HHb) was investigated systematically with various spectroscopic methods including fluorescence quenching technique, ultraviolet (UV)-vis absorption, synchronous fluorescence, circular dichroism (CD) and Fourier transform infrared (FT-IR) spectroscopy. Analysis of fluorescence data showed that the quenching mechanism was the dynamic quenching and each protein had only one binding site for the drug. Two thermodynamic parameters, the enthalpy change and the entropy change were calculated to be 9.18 kJ mol(-1) and 116J mol(-1) K(-1), respectively, which suggested that hydrophobic interaction played a major role in the binding reaction. The results from different spectroscopic methods also showed that DTX could induce conformational changes of HHb. The molecular docking simulation demonstrated that DTX was located in the central cavity of HHb.
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Affiliation(s)
- Hongxia Cheng
- State Key Laboratory of Virology, College of Life Sciences, Center of Nanoscience and Nanotechnology, Wuhan University, Wuhan 430072, China
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Yang L, Huo D, Hou C, Yang M, Fa H, Luo X. Interaction of monosulfonate tetraphenyl porphyrin (H2TPPS1) with plant-esterase: determination of the binding mechanism by spectroscopic methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 78:1349-1355. [PMID: 21320795 DOI: 10.1016/j.saa.2011.01.009] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2010] [Revised: 05/11/2010] [Accepted: 01/14/2011] [Indexed: 05/30/2023]
Abstract
The interaction of monosulfonate tetraphenyl porphyrin (H(2)TPPS(1)) with plant-esterase was investigated using fluorescence and UV-vis absorption spectroscopy. Fluorescence quenching, from which the binding parameters were evaluated, revealed that the quenching of the esterase by H(2)TPPS(1) resulted from the formation of a dye-esterase complex. According to the modified Stern-Volmer equation, the effective quenching constants (K(a)) between H(2)TPPS(1) and plant-esterase at four different temperatures (297 K, 300 K, 303 K, and 306 K) were obtained to be 14.132×10(5), 5.734×10(5), 2.907×10(5), and 2.291×10(5) M(-1), respectively. The thermodynamic parameters, enthalpy change (ΔH) and entropy change (ΔS) for the reaction were calculated to be -181.67 kJ M(-1) and -0.49 kJ M(-1)K(-1), indicating that van der Waals force and hydrogen bonds were the dominant intermolecular force in stabilizing the complex. Site marker competitive experiments showed that the binding of H(2)TPPS(1) to plant-esterase primarily took place in the active site. The binding distance (r) was obtained to be 5.99 nm according to Förster theory of non-radioactive energy transfer. The conformation of plant-esterase was investigated by synchronous fluorescence and UV-vis absorption spectroscopy, and the results confirmed some micro-environmental and conformational changes of plant-esterase molecules.
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Affiliation(s)
- Limin Yang
- College of Bioengineering/Key Laboratory of Biorheology Science and Technology of Ministry of Education, Chongqing University, Chongqing, PR China
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Puri M, Kaur A, Schwarz WH, Singh S, Kennedy JF. Molecular characterization and enzymatic hydrolysis of naringin extracted from kinnow peel waste. Int J Biol Macromol 2011; 48:58-62. [PMID: 20920523 DOI: 10.1016/j.ijbiomac.2010.09.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2010] [Revised: 07/05/2010] [Accepted: 09/24/2010] [Indexed: 11/28/2022]
Abstract
Kinnow peel, a waste rich in glycosylated phenolic substances, is the principal by-product of the citrus fruit processing industry and its disposal is becoming a major problem. This peel is rich in naringin and may be used for rhamnose production by utilizing α-L-rhamnosidase (EC 3.2.1.40), an enzyme that catalyzes the cleavage of terminal rhamnosyl groups from naringin to yield prunin and rhamnose. In this work, infrared (IR) spectroscopy confirmed molecular characteristics of naringin extracted from kinnow peel waste. Further, recombinant α-L-rhamnosidase purified from Escherichia coli cells using immobilized metal-chelate affinity chromatography (IMAC) was used for naringin hydrolysis. The purified enzyme was inhibited by Hg2+ (1 mM), 4-hydroxymercuribenzoate (0.1 mM) and cyanamide (0.1 mM). The purified enzyme established hydrolysis of naringin extracted from kinnow peel and thus endorses its industrial applicability for producing rhamnose.
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Affiliation(s)
- Munish Puri
- Centre for Biotechnology and Interdisciplinary Sciences, Institute for Technology Research and Innovation (ITRI), Deakin University, Geelong, Victoria 3217, Australia.
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Ying L, Chao W, Guanghua L. Interaction of Jatrorrhizine with Human Gamma Globulin in membrane mimetic environments: Probing of the binding mechanism and binding site by spectroscopic and molecular modeling methods. J Mol Struct 2010. [DOI: 10.1016/j.molstruc.2010.06.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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39
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Wang JZ, Lin T, Zhu GF, Du LF. Stability of Pin1 as revealed by thermal and spectroscopic studies. J Mol Struct 2010. [DOI: 10.1016/j.molstruc.2010.04.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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40
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Neelam S, Gokara M, Sudhamalla B, Amooru DG, Subramanyam R. Interaction Studies of Coumaroyltyramine with Human Serum Albumin and Its Biological Importance. J Phys Chem B 2010; 114:3005-12. [DOI: 10.1021/jp910156k] [Citation(s) in RCA: 129] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Satyabala Neelam
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, Andhrapradesh 500046, India, and Department of Chemistry, Yogi Vemana University, Kadapa, Andhrapradesh 516003, India
| | - Mahesh Gokara
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, Andhrapradesh 500046, India, and Department of Chemistry, Yogi Vemana University, Kadapa, Andhrapradesh 516003, India
| | - Babu Sudhamalla
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, Andhrapradesh 500046, India, and Department of Chemistry, Yogi Vemana University, Kadapa, Andhrapradesh 516003, India
| | - Damu G. Amooru
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, Andhrapradesh 500046, India, and Department of Chemistry, Yogi Vemana University, Kadapa, Andhrapradesh 516003, India
| | - Rajagopal Subramanyam
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, Andhrapradesh 500046, India, and Department of Chemistry, Yogi Vemana University, Kadapa, Andhrapradesh 516003, India
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Ni Y, Liu G, Kokot S. Fluorescence Spectrometric Study on the Interactions of Terazosin Hydrochloride and Prazosin Hydrochloride with Bovine Serum Albumin Using Warfarin and Diazepam as Site Markers. ANAL LETT 2009. [DOI: 10.1080/00032710903243653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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