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Ngueanngam N, Jityuti B, Patnin S, Boonsri P, Makarasen A, Buranaprapuk A. Multiple spectroscopic and computational studies on binding interaction of 2-phenylamino-4-phenoxyquinoline derivatives with bovine serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 310:123948. [PMID: 38309006 DOI: 10.1016/j.saa.2024.123948] [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: 09/13/2023] [Revised: 01/15/2024] [Accepted: 01/21/2024] [Indexed: 02/05/2024]
Abstract
Binding characteristics of potent non-nucleoside HIV-1 reverse transcriptase inhibitors, 4-(2',6'-dimethyl-4'-formylphenoxy)-2-(5″-cyanopyridin-2″ylamino) quinoline (1) and 4-(2',6'-dimethyl-4'-cyanophenoxy)-2-(5″-cyanopyridin-2″ylamino) quinoline (2), to bovine serum albumin (BSA) under simulative physiological conditions were investigated by multiple spectroscopic and computational methods. The experimental results demonstrated that (1) and (2) bound to BSA at site III (subdomain IB), and quenched BSA fluorescence through a static quenching process. The binding interaction of (1) or (2) to BSA forms stable complexes with the binding constants (Kb) at the level of 104 L/mol and the number of binding site was determined to be 1 for both systems, indicating that new synthesized compounds occupied one site in BSA with moderate binding affinities. Based on the analysis of the thermodynamic parameters, it can be indicated that the main binding forces for interaction between BSA and both compounds were hydrogen bonding and van der Waals force. Synchronous fluorescence results revealed that the interaction of two compounds with BSA led to modifications in the microenvironment surrounding tryptophan residue of BSA. Circular dichroism spectra demonstrated alterations in the secondary structure of BSA induced by (1) and (2). Moreover, the experimental data of molecular docking and molecular dynamics (MD) simulations supported the results obtained from multiple spectroscopic techniques, confirming the binding interactions between both compounds and BSA.
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Affiliation(s)
- Natchaphon Ngueanngam
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Bangkok 10110, Thailand
| | - Benchawan Jityuti
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Bangkok 10110, Thailand
| | - Suwicha Patnin
- Department of Chemistry, Laboratory of Organic Synthesis, Chulabhorn Research Institute, Laksi, Bangkok 10210, Thailand
| | - Pornthip Boonsri
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Bangkok 10110, Thailand
| | - Arthit Makarasen
- Department of Chemistry, Laboratory of Organic Synthesis, Chulabhorn Research Institute, Laksi, Bangkok 10210, Thailand
| | - Apinya Buranaprapuk
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Bangkok 10110, Thailand.
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Ansari S, Zia MK, Ahsan H, Hashmi MA, Khan FH. Binding characteristics and conformational changes in alpha-2-macroglobulin by the dietary flavanone naringenin: biophysical and computational approach. J Biomol Struct Dyn 2023:1-16. [PMID: 37498152 DOI: 10.1080/07391102.2023.2240420] [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: 05/18/2023] [Accepted: 07/18/2023] [Indexed: 07/28/2023]
Abstract
In the present study, we investigated the interaction of alpha-2-macroglobulin (α2M) with naringenin using multi-spectroscopic, molecular docking, and molecular simulation approaches to identify the functional changes and structural variations in the α2M structure. Our study suggests that naringenin compromised α2M anti-proteinase activity. The results of absorption spectroscopy and fluorescence measurement showed that naringenin-α2M formed a complex with a binding constant of (kb)∼104, indicative of moderate binding. The value of ΔG° in the binding indicates the process to be spontaneous and the major force responsible to be hydrophobic interaction. The findings of FRET reveal the binding distance between naringenin and the amino acids of α2M was 2.82 nm. The secondary structural analysis of α2M with naringenin using multi-spectroscopic methods like synchronous fluorescence, red-edge excitation shift (REES), FTIR, and CD spectra further confirmed the significant conformational alterations in the protein. Molecular docking approach reveals the interactions between naringenin and α2M to be hydrogen bonds, van der Waals forces, and pi interactions, which considerably favour and stabilise the binding. Molecular dynamics modelling simulations also supported the steady binding with the least RMSD deviations. Our study suggests that naringenin interacts with α2M to alter its confirmation and compromise its activity.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sana Ansari
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, India
| | - Mohammad Khalid Zia
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, India
| | - Haseeb Ahsan
- Department of Biochemistry, Faculty of Dentistry, Jamia Millia Islamia, New Delhi, India
| | - Md Amiruddin Hashmi
- Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, UP, India
| | - Fahim H Khan
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, India
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3
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Jityuti B, Makarasen A, Buranaprapuk A. Fluorescence signal switching of novel pyrenyl probe for the detection of bovine serum albumin. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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BSA Interaction, Molecular Docking, and Antibacterial Activity of Zinc(II) Complexes Containing the Sterically Demanding Biomimetic N 3S 2 Ligand: The Effect of Structure Flexibility. Molecules 2022; 27:molecules27113543. [PMID: 35684479 PMCID: PMC9182146 DOI: 10.3390/molecules27113543] [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: 05/11/2022] [Revised: 05/26/2022] [Accepted: 05/27/2022] [Indexed: 11/16/2022] Open
Abstract
Two zinc(II) complexes, DBZ and DBZH4, that have (ZnN3S2) cores and differ in the bridging mode of the ligating backbone, effectively bind to BSA. The binding affinity varies as DBZ > DBZH4 and depends on the ligand structure. At low concentrations, both complexes exhibit dynamic quenching, whereas at higher concentrations they exhibit mixed (static and dynamic) quenching. The energy transfer mechanism from the BSA singlet excited state to DBZ and DBZH4, is highly likely according to steady-state fluorescence and time-correlated singlet photon counting. Molecular docking was used to support the mode of interaction of the complexes with BSA and showed that DBZ had more energy for binding. Furthermore, antibacterial testing revealed that both complexes were active but to a lesser extent than chloramphenicol. In comparison to DBZH4, DBZ has higher antibacterial activity, which is consistent with the binding constants, molecular docking, and particle size of adducts. These findings may have an impact on biomedicine.
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Bai J, Ma X, Sun X. Investigation on the interaction of food colorant Sudan III with bovine serum albumin using spectroscopic and molecular docking methods. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2020; 55:669-676. [PMID: 32073347 DOI: 10.1080/10934529.2020.1729616] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 02/03/2020] [Accepted: 02/07/2020] [Indexed: 06/10/2023]
Abstract
Sudan III is a coloring agent used in chemical industries and food additives. This article uses spectroscopic and molecular docking methods to investigate the interaction of Sudan III with bovine serum albumin (BSA) under a physiological condition. Spectroscopic analysis of the emission quenching revealed that the quenching mechanism of BSA by Sudan III was static. The binding sites and constants of Sudan III-BSA complex were observed to be from 0.72 and 6.41 × 102 L·mol-1 to 0.69 and 5.83 × 102 L·mol-1 at 298 and 310 K, respectively. The enthalpy change (ΔH) and entropy change (ΔS) revealed that van der Waals forces and hydrogen bonds stabilized the Sudan III-BSA complex. Energy transfer from tryptophan to Sudan III occurred by a fluorescence resonance energy transfer mechanism, and the r distance (3.32 nm) had been determined. The results of UV-Vis absorption, synchronous, three-dimensional fluorescence, and circular dichroism spectra showed that Sudan III induced conformational changes of BSA. Molecular docking studies revealed that Sudan III situated within subdomain IIA of BSA. A study on the interaction between Sudan III and BSA was of fundamental importance for providing more information about the potential toxicological effect of chemicals at the molecular level.
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Affiliation(s)
- Jie Bai
- College of Environmental Science, Liaoning University, Shenyang, P.R. China
| | - Xiping Ma
- College of Environmental Science, Liaoning University, Shenyang, P.R. China
| | - Xuekai Sun
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, P.R. China
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Santos-Rebelo A, Kumar P, Pillay V, Choonara YE, Eleutério C, Figueira M, Viana AS, Ascensão L, Molpeceres J, Rijo P, Correia I, Amaral J, Solá S, Rodrigues CMP, Gaspar MM, Reis CP. Development and Mechanistic Insight into the Enhanced Cytotoxic Potential of Parvifloron D Albumin Nanoparticles in EGFR-Overexpressing Pancreatic Cancer Cells. Cancers (Basel) 2019; 11:cancers11111733. [PMID: 31694306 PMCID: PMC6895893 DOI: 10.3390/cancers11111733] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 10/29/2019] [Accepted: 11/01/2019] [Indexed: 01/04/2023] Open
Abstract
Pancreatic cancer is one of the most lethal cancers, with an extremely poor prognosis. The development of more effective therapies is thus imperative. Natural origin compounds isolated from Plectranthus genus, such as parvifloron D (PvD), have cytotoxic and antiproliferative activity against human tumour cells. However, PvD is a very low water-soluble compound, being nanotechnology a promising alternative strategy to solve this problem. Therefore, the aim of this study was to optimize a nanosystem for preferential delivery of PvD to pancreatic tumour cells. Albumin nanoparticles (BSA NPs) were produced through a desolvation method. Glucose cross-linking and bioactive functionalization profiles of BSA platform were elucidated and analysed using static lattice atomistic simulations in vacuum. Using the optimized methodology, PvD was encapsulated (yield higher than 80%) while NPs were characterized in terms of size (100–400 nm) and morphology. Importantly, to achieve a preferential targeting to pancreatic cancer cells, erlotinib and cetuximab were attached to the PvD-loaded nanoparticle surface, and their antiproliferative effects were evaluated in BxPC3 and Panc-1 cell lines. Erlotinib conjugated NPs presented the highest antiproliferative effect toward pancreatic tumour cells. Accordingly, cell cycle analysis of the BxPC3 cell line showed marked accumulation of tumour cells in G1-phase and cell cycle arrest promoted by NPs. As a result, erlotinib conjugated PvD-loaded BSA NPs must be considered a suitable and promising carrier to deliver PvD at the tumour site, improving the treatment of pancreatic cancer.
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Affiliation(s)
- Ana Santos-Rebelo
- CBIOS (Research Center for Biosciences and Health Technologies), Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal; (A.S.-R.); (P.R.)
- Department of Biomedical Sciences, Faculty of Pharmacy, University of Alcalá, Ctra. A2 km 33,600 Campus Universitario, 28871 Alcalá de Henares, Spain;
| | - Pradeep Kumar
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa; (P.K.); (V.P.); (Y.E.C.)
| | - Viness Pillay
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa; (P.K.); (V.P.); (Y.E.C.)
| | - Yahya E. Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa; (P.K.); (V.P.); (Y.E.C.)
| | - Carla Eleutério
- Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; (C.E.); (M.F.)
| | - Mariana Figueira
- Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; (C.E.); (M.F.)
| | - Ana S. Viana
- CQB, CQE, Faculdade de Ciências, Universidade de Lisboa, Campo Grande 1749-016 Lisboa, Portugal;
| | - Lia Ascensão
- CESAM, Universidade de Lisboa, Faculdade de Ciências, Campo Grande 1749-016 Lisboa, Portugal;
| | - Jesús Molpeceres
- Department of Biomedical Sciences, Faculty of Pharmacy, University of Alcalá, Ctra. A2 km 33,600 Campus Universitario, 28871 Alcalá de Henares, Spain;
| | - Patrícia Rijo
- CBIOS (Research Center for Biosciences and Health Technologies), Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal; (A.S.-R.); (P.R.)
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; (J.A.); (S.S.); (C.M.P.R.); (M.M.G.)
| | - Isabel Correia
- Centro de Química Estrutural, Instituto Superior Técnico, Departamento de Engenharia Química, Universidade de Lisboa,1049-001 Lisboa, Portugal;
| | - Joana Amaral
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; (J.A.); (S.S.); (C.M.P.R.); (M.M.G.)
| | - Susana Solá
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; (J.A.); (S.S.); (C.M.P.R.); (M.M.G.)
| | - Cecília M. P. Rodrigues
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; (J.A.); (S.S.); (C.M.P.R.); (M.M.G.)
| | - Maria Manuela Gaspar
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; (J.A.); (S.S.); (C.M.P.R.); (M.M.G.)
| | - Catarina Pinto Reis
- Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; (C.E.); (M.F.)
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; (J.A.); (S.S.); (C.M.P.R.); (M.M.G.)
- IBEB, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
- Correspondence: ; Tel.: +351-217-946-400; Fax: +351-217-946-470
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Chandel TI, Masroor A, Siddiqi MK, Siddique IA, Jahan I, Ali M, Nayeem SM, Uversky VN, Khan RH. Molecular basis of the inhibition and disaggregation of thermally-induced amyloid fibrils of human serum albumin by an anti-Parkinson's drug, benserazide hydrochloride. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.12.127] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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8
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9
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Guan J, Yan X, Zhao Y, Sun Y, Peng X. Binding studies of triclocarban with bovine serum albumin: Insights from multi-spectroscopy and molecular modeling methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 202:1-12. [PMID: 29777928 DOI: 10.1016/j.saa.2018.04.070] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 04/13/2018] [Accepted: 04/29/2018] [Indexed: 06/08/2023]
Abstract
The antimicrobial triclocarban (TCC) is frequently found in various personal care products (PCPs), and recent studies have demonstrated that it shows a high unintended biological activity on humans and wildlife. To evaluate the toxicity of TCC at the protein level, the effect of TCC on bovine serum albumin (BSA) has been investigated using various spectroscopic methods in combination with molecular modeling. Analysis of fluorescence quenching data of BSA revealed the formation of a ground state BSA-TCC complex with a binding constant of 2.58 × 104 M-1 at 298 K. The values of the thermodynamic parameters suggested that the binding of TCC to BSA was driven mainly by hydrophobic interaction and hydrogen bond. Site marker competitive experiments coupled with molecular docking studies confirmed that site I was the main binding site for TCC on BSA. Furthermore, TCC binding to BSA led to conformational and structural alterations of BSA as revealed by multi-spectroscopic studies. In addition, the stability of BSA and BSA-TCC complex were well analyzed by the molecular dynamics studies. In short, this work indicated that TCC could interact with BSA and impact the conformation of BSA, which could provide valuable information to understand the toxicity mechanism of TCC.
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Affiliation(s)
- Jiao Guan
- School of Life Sciences, Tianjin University, Tianjin 300072, PR China
| | - Xin Yan
- School of Life Sciences, Tianjin University, Tianjin 300072, PR China
| | - Yajing Zhao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Yinhe Sun
- Tianjin Institute of Metrological Supervision and Testing, Nankai District, Tianjin 300192, PR China
| | - Xin Peng
- School of Life Sciences, Tianjin University, Tianjin 300072, PR China.
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10
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Comparative studies on the human serum albumin binding of the clinically approved EGFR inhibitors gefitinib, erlotinib, afatinib, osimertinib and the investigational inhibitor KP2187. J Pharm Biomed Anal 2018; 154:321-331. [PMID: 29567575 DOI: 10.1016/j.jpba.2018.03.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 03/03/2018] [Accepted: 03/05/2018] [Indexed: 11/27/2022]
Abstract
Binding interactions between human serum albumin (HSA) and four approved epidermal growth factor receptor (EGFR) inhibitors gefitinib (GEF), erlotinib (ERL), afatinib (AFA), osimertinib (OSI), as well as the experimental drug KP2187, were investigated by means of spectrofluorometric and molecular modelling methods. Steady-state and time resolved spectrofluorometric techniques were carried out, including direct quenching of protein fluorescence and site marker displacement measurements. Proton dissociation processes and solvent dependent fluorescence properties were investigated as well. The EGFR inhibitors were predominantly presented in their single protonated form (HL+) at physiological pH except ERL, which is charge-neutral. Significant solvent dependent fluorescence properties were found for GEF, ERL and KP2187, namely their emission spectra show strong dependence on the polarity and the hydrogen bonding ability of the solvents. The inhibitors proved to be bound at site I of HSA (in subdomain IIA) in a weak-to-moderate fashion (logK' 3.9-4.9) using spectrofluorometry. OSI (logK' 4.3) and KP2187 can additionally bind in site II (in subdomain IIIA), while GEF, ERL and AFA clearly show no interaction here. Docking methods qualitatively confirmed binding site preferences of compounds GEF and KP2187, and indicated that they probably bind to HSA in their neutral forms. Binding constants calculated on the basis of the various experimental data indicate a weak-to-moderate binding on HSA, only OSI exhibits somewhat higher affinity towards this protein. However, model calculations performed at physiological blood concentrations of HSA resulted in high (ca. 90%) bound fractions for the inhibitors, highlighting the importance of plasma protein binding.
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11
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Evidence of bovine serum albumin-viologen herbicide binding interaction and associated structural modifications. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.03.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Roy A, Seal P, Sikdar J, Banerjee S, Haldar R. Underlying molecular interaction of bovine serum albumin and linezolid: a biophysical outlook. J Biomol Struct Dyn 2017; 36:387-397. [DOI: 10.1080/07391102.2017.1278721] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Amartya Roy
- Department of Physiology, University Colleges of Science and Technology, University of Calcutta , 92, A.P.C. Road, Kolkata 700 009, India
| | - 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
| | - Sanghamitra Banerjee
- 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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Chandel TI, Rabbani G, Khan M, Zaman M, Alam P, E. Shahein Y, Hasan Khan R. Binding of anti-cardiovascular drug to serum albumin: an insight in the light of spectroscopic and computational approaches. J Biomol Struct Dyn 2016; 36:54-67. [DOI: 10.1080/07391102.2016.1266968] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Tajalli Ilm Chandel
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Gulam Rabbani
- School of Medical Biotechnology, YeungNam University, Gyeongsan, Republic of Korea
| | - MohsinVahid Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Masihuz Zaman
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Parvez Alam
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Yasser E. Shahein
- Molecular Biology Department, Genetic Engineering Division, National Research Centre, Cairo, Egypt
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
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Roy S, Nandi RK, Ganai S, Majumdar KC, Das TK. Binding interaction of phosphorus heterocycles with bovine serum albumin: A biochemical study. J Pharm Anal 2016; 7:19-26. [PMID: 29404014 PMCID: PMC5686865 DOI: 10.1016/j.jpha.2016.05.009] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 05/24/2016] [Accepted: 05/30/2016] [Indexed: 11/25/2022] Open
Abstract
Interaction between bovine serum albumin (BSA) and phosphorus heterocycles (PHs) was studied using multi-spectroscopic techniques. The results indicated the high binding affinity of PHs to BSA as it quenches the intrinsic fluorescence of BSA. The experimental data suggested the fluorescence quenching mechanism between PHs and BSA as a dynamic quenching. From the UV–vis studies, the apparent association constant (Kapp) was found to be 9.25×102, 1.27×104 and 9.01×102 L/mol for the interaction of BSA with PH-1, PH-2 and PH-3 respectively. According to the Förster's non-radiation energy transfer (FRET) theory, the binding distances between BSA and PHs were calculated. The binding distances (r) of PH-1, PH-2 and PH-3 were found to be 2.86, 3.03, and 5.12 nm, respectively, indicating energy transfer occurs between BSA and PHs. The binding constants of the PHs obtained from the fluorescence quenching data were found to be decreased with increase of temperature. The negative values of the thermodynamic parameters ΔH, ΔS and ΔG at different temperatures revealed that the binding process is spontaneous; hydrogen bonds and van der Waals interaction were the main force to stabilize the complex. The microenvironment of the protein-binding site was studied by synchronous fluorescence and circular dichroism (CD) techniques and data indicated that the conformation of BSA changed in the presence of PHs. Finally, we studied the BSA-PHs docking using Autodock and results suggest that PHs is located in the cleft between the domains of BSA. The interaction between BSA and PHs by spectroscopic methods. The fluorescence quenching mechanism is dynamic. Van der Waals force and hydrogen bond are the main force for BSA-PHs interaction. Docking of PHs-BSA interaction.
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Affiliation(s)
- Swarup Roy
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741235, West Bengal, India
| | - Raj Kumar Nandi
- Department of Chemistry, University of Kalyani, Kalyani 741235, West Bengal, India
| | - Sintu Ganai
- Department of Chemistry, University of Kalyani, Kalyani 741235, West Bengal, India
| | - K C Majumdar
- Department of Chemistry, University of Kalyani, Kalyani 741235, West Bengal, India
| | - Tapan K Das
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741235, West Bengal, India
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Peng X, Wang X, Qi W, Huang R, Su R, He Z. Deciphering the binding patterns and conformation changes upon the bovine serum albumin-rosmarinic acid complex. Food Funct 2015; 6:2712-26. [PMID: 26146359 DOI: 10.1039/c5fo00597c] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
Rosmarinic acid (RA) is an importantly and naturally occurring polyphenol from plants of the mint family with potent biological activities. Here, the in vitro interaction of RA with bovine serum albumin (BSA) has been investigated using various biophysical approaches as well as molecular modeling methods, to ascertain its binding mechanism and conformational changes. The fluorescence results demonstrated that the fluorescence quenching of BSA by RA was mainly the result of the formation of a ground state BSA-RA complex, and BSA had one high affinity RA binding site with a binding constant of 4.18 × 10(4) mol L(-1) at 298 K. Analysis of thermodynamic parameters revealed that hydrophobic and hydrogen bond interactions were the dominant intermolecular force in the complex formation. The primary binding site of RA in BSA (site I) had been identified by site marker competitive experiments. The distance between RA and the tryptophan residue of BSA was evaluated at 3.12 nm based on Förster's theory of non-radiation energy transfer. The UV-vis absorption, synchronous fluorescence, three-dimensional fluorescence, 8-anilino-1-naphthalenesulfonic acid (ANS) fluorescence, circular dichroism (CD), and Fourier transform infrared (FT-IR) spectra confirmed that the conformation and structure of BSA were altered in the presence of RA. Moreover, the nuclear magnetic spectroscopy showed that the aromatic groups of RA took part in the binding reaction during the BSA-RA complexation. In addition, the molecular picture of the interaction mechanism between BSA and RA at the atomic level was well examined by molecular docking and dynamics studies. In brief, RA can bind to BSA with noncovalent bonds in a relatively stable way, and these findings will be beneficial to the functional food research of RA.
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Affiliation(s)
- Xin Peng
- School of Life Sciences, Tianjin University, Tianjin 300072, PR China
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16
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Liu Y, Chen M, Jiang L, Song L. Stereoselective interaction of cinchona alkaloid isomers with bovine serum albumin. Food Chem 2015; 181:170-8. [DOI: 10.1016/j.foodchem.2015.02.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 12/30/2014] [Accepted: 02/04/2015] [Indexed: 11/17/2022]
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17
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Chandrasekaran S, Sudha N, Premnath D, Enoch IV. Binding of a chromen-4-one Schiff’s base with bovine serum albumin: capping with β-cyclodextrin influences the binding. J Biomol Struct Dyn 2014; 33:1945-56. [DOI: 10.1080/07391102.2014.980323] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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18
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Chen M, Guo H, Liu Y, Zhang Q. Structural Changes of Human Serum Albumin Induced by Cadmium Acetate. J Biochem Mol Toxicol 2014; 28:281-7. [DOI: 10.1002/jbt.21564] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 02/23/2014] [Accepted: 03/28/2014] [Indexed: 11/05/2022]
Affiliation(s)
- Mingmao Chen
- Institute of Biomedical and Pharmaceutical Technology & College of Chemistry and Chemical Engineering; Fuzhou University; Fuzhou 350002 People's Republic of China
| | - Hao Guo
- Institute of Biomedical and Pharmaceutical Technology & College of Chemistry and Chemical Engineering; Fuzhou University; Fuzhou 350002 People's Republic of China
| | - Yan Liu
- The State Key Lab of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou 350002 People's Republic of China
| | - Qiqing Zhang
- Institute of Biomedical and Pharmaceutical Technology & College of Chemistry and Chemical Engineering; Fuzhou University; Fuzhou 350002 People's Republic of China
- Key Laboratory of Biomedical Material of Tianjin; Institute of Biomedical Engineering; Chinese Academy of Medical Science & Peking Union Medical College; Tianjin 300192 People's Republic of China
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19
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Liu Y, Chen M, Jiang L, Song L. New insight into molecular interaction of heavy metal pollutant--cadmium(II) with human serum albumin. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:6994-7005. [PMID: 24522399 DOI: 10.1007/s11356-014-2610-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Accepted: 01/27/2014] [Indexed: 05/19/2023]
Abstract
Cadmium (Cd) is an extremely toxic metal commonly found as an environmental contaminant from industrial and agricultural sources, posing severe risks to human health. In this study, the binding mechanism of Cd(II)-human serum albumin (HSA) complex and the effect of Cd(II) on the conformational stability and structural state of HSA were comprehensively investigated through a series of efficient and appropriate methods. X-ray photoelectron spectroscopy accurately described the microenvironmental changes around protein C, N, and O atoms in the presence of Cd(II). Fluorescence results indicated that the probable mechanism of Cd(II)-HSA interaction is a static quenching process. Fourier transform infrared spectroscopy and dynamic light scattering showed Cd(II) complexation altered HSA conformation and the microenvironments of Trp and Tyr residues, accompanied by the size increases of HSA aggregates. This research will be helpful for understanding the toxic effects of Cd(II) on protein function in vivo.
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Affiliation(s)
- Yan Liu
- The State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, People's Republic of China
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