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Fatima S, Hussain I, Ahmed S, Afaq MA, Tabish M. Insight into the interaction of isochroman with bovine serum albumin: extensive experimental and computational investigations. J Biomol Struct Dyn 2024:1-15. [PMID: 38319026 DOI: 10.1080/07391102.2024.2310203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 01/19/2024] [Indexed: 02/07/2024]
Abstract
The way therapeutic compounds interact with serum protein provides valuable information on their pharmacokinetics, toxicity, effectiveness, and even their structural-related information. Isochroman (IC) is a phytochemical compound obtained from the leaves of Olea europea plant. The derivatives of IC have various pharmacological properties including antidepressants, antihistamines, antiinflammation, anticonvulsants, appetite depressants, etc. The binding of small molecules to bovine serum albumin (BSA) is useful to ensure their efficacy. Thus, in this study, we have found out the binding mode of IC with BSA using several spectroscopic and in silico studies. UV and fluorescence spectroscopy suggested the complex formation between IC and BSA with a binding constant of 103 M-1. IC resulted in fluorescence quenching in BSA through static mechanism. The microenvironmental and conformational changes in BSA were confirmed using synchronous and three-dimensional studies. Site marker experiment revealed the IC binding in site-III of BSA. The influence of vitamins, metals and β-cyclodextrin (β-CD) on binding constant of IC-BSA complex was also examined. Circular dichroism spectra showed that α-helical of BSA decreased upon interaction with IC. Computational and experimental results were complimentary with one another and assisted in determining the binding sites, nature of bonds and amino acids included in the IC-BSA complex formation.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sana Fatima
- Department of Biochemistry, Faculty of Life Science, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Irfan Hussain
- Department of Biochemistry, Faculty of Life Science, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Shahbaz Ahmed
- Department of Biochemistry, Faculty of Life Science, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Mohd Abuzar Afaq
- Department of Biochemistry, Faculty of Life Science, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Mohammad Tabish
- Department of Biochemistry, Faculty of Life Science, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
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2
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Jiang SL, Li L, Kou SB, Hu L, Shi JH. Insight into intermolecular binding mechanism of apatinib mesylate and human alpha-1-acid glycoprotein: combined multi-spectroscopic approaches with in silico. J Biomol Struct Dyn 2024; 42:779-790. [PMID: 37000929 DOI: 10.1080/07391102.2023.2195015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 03/19/2023] [Indexed: 04/03/2023]
Abstract
Apatinib mesylate (APM), an oral tyrosine kinase inhibitor, has a good anti-tumor activity in the treatment of various cancers, particularly in advanced non-small cell lung cancer. In this study, the intermolecular binding mechanism between APM and human alpha-1-acid glycoprotein (HAG) was investigated by combining multi-spectroscopic approaches with in silico techniques. The findings revealed that APM gave rise to the fluorescence quenching of HAG by forming a ground-state complex between APM and HAG with a stoichiometric ratio of 1:1, and APM has a moderate affinity for HAG as the binding constant of APM and HAG of approximately 105 M-1, which was larger than the APM-HAG complex. The findings from thermodynamic parameter analysis indicated that the dominant driving forces for the formation of the APM-HAG complex were van der Waals forces, hydrogen bonding and hydrophobic interactions, which were also verified with site-probe studies and molecular docking. The findings from in silico study indicated that APM inserted into the opening of the hydrophobic cavity of HAG, leads to a slight conformational change in the HAG, which was verified by circular dichroism (CD) measurements, that was, the beta sheet level of HAG decreased. Additionally, the results of synchronous and 3D fluorescence spectroscopies confirmed the decline in hydrophobicity of the microenvironment around Trp and Tyr residues. Moreover, some common metal ions such as Cu2+, Mg2+, Fe3+, Ca2+, and Zn2+ could cause the alteration in the binding constant of APM with HAG, leading to the change in the efficacy of APM. It will be expected that these study findings are to provide useful information for further understanding pharmacokinetic and structural modifications of APM.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Shao-Liang Jiang
- College of Pharmaceutic Science, Zhejiang University of Technology, Hangzhou, China
| | - Li Li
- College of Pharmaceutic Science, Zhejiang University of Technology, Hangzhou, China
| | - Song-Bo Kou
- College of Pharmaceutic Science, Zhejiang University of Technology, Hangzhou, China
| | - Lu Hu
- College of Pharmaceutic Science, Zhejiang University of Technology, Hangzhou, China
| | - Jie-Hua Shi
- College of Pharmaceutic Science, Zhejiang University of Technology, Hangzhou, China
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3
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Pan W, Cao Y, Gu F, Gao Y, Liao H, Li Z, Yu J, Niu F. Interaction between potassium iodide and bovine serum albumin, ovalbumin and lysozyme under different temperature induction. Int J Biol Macromol 2023; 248:125923. [PMID: 37482161 DOI: 10.1016/j.ijbiomac.2023.125923] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 07/19/2023] [Indexed: 07/25/2023]
Abstract
In this study, the interaction between potassium iodide and protein molecules under different temperature induction was studied, taking potassium iodide (KI) and protein molecules as a model system. The effects of KI on protein conformation, size, surface charge, binding constant, and binding site were analyzed by fluorescence spectrum, infrared spectrum, and diffusing wave spectroscopy. The results revealed that bovine serum albumin (BSA)/ovalbumin (OVA) and I-1 formed the 1: 1 complex and significantly affected the hydrodynamic radius and spatial structure. This could be attributed to the exposure of tyrosine residues inside the proteins to the polar conditions under increased temperature. The unfolding of protein structures induced the interaction between KI/KCl and proteins. As for BSA and OVA, the particle size and surface charge of the complex increased significantly in the presence of KI/KCl. KI had a strong static quenching effect on the fluorescence of BSA and OVA. Overall, these results provide insights into the physiological effects of iodine ions.
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Affiliation(s)
- Weichun Pan
- Food Safety Key Lab of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Yanren Cao
- Food Safety Key Lab of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Feina Gu
- Food Safety Key Lab of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Yi Gao
- Food Safety Key Lab of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Huabin Liao
- Food Safety Key Lab of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Zhe Li
- Food Safety Key Lab of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Jiao Yu
- Food Safety Key Lab of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Fuge Niu
- Food Safety Key Lab of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China.
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4
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Tian Z, Ding T, Niu H, Wang T, Zhang Z, Gao J, Kong M, Ming L, Tian Z, Ma J, Luo W, Wang C. 2-Phenylquinoline-polyamine conjugate (QPC): Interaction with bovine serum albumin (BSA). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 300:122875. [PMID: 37276638 DOI: 10.1016/j.saa.2023.122875] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 06/07/2023]
Abstract
A novel 2-phenylquinoline-polyamine conjugate (QPC) was synthesized and characterized, its interaction with bovine serum albumin (BSA) was evaluated using UV-Vis, fluorescence and circular dichroism (CD) spectroscopy. The results showed that QPC caused a whole train of spectral variation, including enhancement of UV-vis absorption and reduction of fluorescence (FL), indicating QPC-BSA complex formed. FL results showed that the type of FL quenching waslarge static quenching, which was also accompanied with a process of dynamic quenching. Binding constants, thermodynamic parameters and docking results showed that the interaction between QPC and BSA was basically a Van der Waals, hydrogen bond and hydrophobic interaction. Synchronous and 3D-FL analysis revealed that QPC resulted in unapparent conformational alteration of BSA. The docking study suggested QPC was situated at the binding sites II of BSA, and 2-phenylquinoline moiety contributed to the hydrophobic interaction. The results of molecular dynamics revealed QPC altered the conformation of BSA, which showed that the inconsistency between experimental data and theoretical calculation results may be due to the instability of the compound.
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Affiliation(s)
- Zhiyong Tian
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Tengli Ding
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Hanjing Niu
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Ting Wang
- The Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China
| | - Zhongze Zhang
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Jinhua Gao
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Ming Kong
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Li Ming
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Zhihui Tian
- The National Supercomputing Center in Zhengzhou, Zhengzhou University, Henan 450001, China
| | - Jing Ma
- Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, Kaifeng 475004, China.
| | - Wen Luo
- The Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
| | - Chaojie Wang
- The Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
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5
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Gupta D, Roy I, Gandhi S. Metallic nanoparticles for CT-guided imaging of tumors and their therapeutic applications. OPENNANO 2023. [DOI: 10.1016/j.onano.2023.100146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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6
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Poorani TR, Ramya C, Manohar R. Molecular docking study on europium nanoparticles and mussel adhesive protein for effective detection of latent fingerprints. Biomarkers 2023; 28:32-64. [PMID: 36345920 DOI: 10.1080/1354750x.2022.2145495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Background: Reflecting on the difficulty of finding the evidence of latent fingerprints on wet and rough surfaces, scientists need to visualise those fingermarks without any background interference and stable adhesion of visualising material over the fingermark residues.Objective: To stabilize the interaction with the fingermarks, the synthesized nanoparticles were conjugated with a highly adhesive biopolymer, Mussel Adhesive Protein (MAP) which can effectively interact with fingerprint deposits.Material and Methods: Rare earth metal, europium oxide and nanoparticles were used as a visualisation material to get high contrast and reduced background interference-based fingerprints. To stabilise the interaction with the fingermarks, the synthesised nanoparticles were conjugated with highly adhesive biopolymer, Mussel Adhesive Protein (MAP) which can effectively interacts with fingerprint deposits. A molecular docking study was done using Auto-Dock to find the binding affinity between the metal nanoparticle and the protein. Further, the stability of the bioconjugated with fingerprint residues was analysed by protein-protein interaction study through patch dock and PDB Sum.Results: The docking analysis between europium and nanoparticles with MAP was found to be -8.77 kcal/mol and -47.49 kcal/mol respectively. Protein-protein interaction studies showed a highest affinity for dermcidin and keratin with a binding affinity of -16.76 kcal/mol and -24.76 kcal/mol respectively.Conclusions: The docking studies showed an efficient interaction between the synthesised molecules and the fingermark residues. Results of these interaction studies proved that this bio-conjugated complex can be explored for efficient visualisation of low intensified fingermarks.
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Affiliation(s)
- T R Poorani
- Department of Electronics and Communication Engineering, PSG College of Technology, Coimbatore, Tamil Nadu, India
| | - C Ramya
- Department of Electronics and Communication Engineering, PSG College of Technology, Coimbatore, Tamil Nadu, India
| | - Ramya Manohar
- Department of Biotechnology, Manipal Institute of Technology Bengaluru, Manipal Academy of Higher Education, Manipal, India
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7
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Xiao Q, Tu X, Cao H, Luo H, Li B, Liu J, Liu Y, Huang S. Interaction thermodynamics investigation of bovine serum albumin with black phosphorus quantum dots via spectroscopic and molecular simulation techniques. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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8
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The Effect of Sulfobetaine Coating in Inhibiting the Interaction between Lyotropic Liquid Crystalline Nanogels and Proteins. Gels 2022; 8:gels8100653. [PMID: 36286154 PMCID: PMC9602168 DOI: 10.3390/gels8100653] [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: 09/20/2022] [Revised: 10/09/2022] [Accepted: 10/12/2022] [Indexed: 11/04/2022] Open
Abstract
The injective lyotropic liquid crystalline nanogels (LLCNs) were widely used in drug delivery systems. But when administered in vivo, LLCNs exposed to the biological environment interact with proteins. Recently, it has been shown that nanoparticles coated with zwitterions can inhibit their interaction with proteins. Thus, in this study, the interaction between proteins and LLCNs coated with the zwitterionic material sulfobetaine (GLLCNs@HDSB) was investigated using bovine serum albumin (BSA) as a model protein. Interestingly, it was found that GLLCNs@HDSB at higher concentrations (≥0.8 mg/mL) could block its interaction with BSA, but not at lower concentrations (<0.8 mg/mL), according to the results of ultraviolet, fluorescence, and circular dichroism spectra. In the ultraviolet spectra, the absorbance of GLLCNs@HDSB (0.8 mg/mL) was 1.9 times higher than that without the sulfobetaine coating (GLLCNs) after incubation with protein; the fluorescence quenching intensity of GLLCNs@HDSB was conversely larger than that of the GLLCNs; in circular dichroism spectra, the ellipticity value of GLLCNs@HDSB was significantly smaller than that of the GLLCNs, and the change in GLLCNs@HDSB was 10 times higher than that of the GLLCNs. Generally, nanoparticles coated with sulfobetaine can inhibit their interaction with proteins, but in this study, LLCNs showed a concentration-dependent inhibitory effect. It could be inferred that in contrast to the surface of nanoparticles covered with sulfobetaine in other cases, the sulfobetaine in this study interacted with the LLCNs and was partially inserted into the hydrophobic region of the LLCNs. In conclusion, this study suggests that coating-modified nanoparticles do not necessarily avoid interacting with proteins, and we should also study coating-modified nanoparticles interacting with proteins both in vitro and in vivo. In the future, finding a coating material to completely inhibit the interaction between LLCNs and proteins will generate a great impetus to promote the clinical transformation of LLCNs.
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9
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Singh D, Kaur L, Rahman AJ, Singh P, Kumar Tiwari A, Ojha H. Binding and mechanistic studies of 5-HT7 specific benzothiazolone derivatives with Bovine Serum Albumin: Spectroscopic and In silico studies. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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10
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Mittal A, Gandhi S, Roy I. Mechanistic interaction studies of synthesized ZIF-8 nanoparticles with bovine serum albumin using spectroscopic and molecular docking approaches. Sci Rep 2022; 12:10331. [PMID: 35725759 PMCID: PMC9209420 DOI: 10.1038/s41598-022-14630-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 05/17/2022] [Indexed: 11/29/2022] Open
Abstract
Numerous studies have shown that nanosized zeolitic imidazolate framework particles (ZIF-8 NPs) serve as promising vehicles for pH-responsive drug delivery. An understanding of their interaction with serum proteins present in physiological systems will thus be of critical importance. In this work, monodisperse ZIF-8 NPs with an average size of 60 nm were synthesized at room temperature and characterized for their various physicochemical properties. Bovine serum albumin (BSA) was used as model serum protein for various interaction studies with ZIF-8 NPs. Spectroscopic techniques such as UV–visible and fluorescence spectroscopy indicated the formation of a ground-state complex with a binding constant of the order 103 M−1 and a single binding site. Steady-state and time-resolved fluorescence spectroscopy confirmed the mechanism of quenching to be static. Conformational changes in the secondary structure of BSA were observed using CD and FT-IR spectroscopies. Binding sites were explored using molecular docking studies.
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Affiliation(s)
- Ashi Mittal
- Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Sona Gandhi
- Department of Chemistry, University of Delhi, Delhi, 110007, India.,Department of Chemistry, Galgotias University, Greater Noida, 203201, India
| | - Indrajit Roy
- Department of Chemistry, University of Delhi, Delhi, 110007, India.
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11
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Exploring binding interaction of baricitinib with bovine serum albumin (BSA): multi-spectroscopic approaches combined with theoretical calculation. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118831] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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12
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Gonçalves JPZ, Seraglio J, Macuvele DLP, Padoin N, Soares C, Riella HG. Green synthesis of manganese based nanoparticles mediated by Eucalyptus robusta and Corymbia citriodora for agricultural applications. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.128180] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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13
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Fu F, Huang Z, Wang W, Wang W, Ma X, Wang L, Huang Y, Hu P, Pan X, Wu C. Interaction between bovine serum albumin and Solutol® HS 15 micelles: A two-stage and concentration-dependent process. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Kadaf Manea Y, Banu A, Qashqoosh MT, Mumtaz Khan A, Alahdal FM, Ahmad Wani A, Salem MA, Naqvi S. Interaction of AMOT@CS NPs and AMOT drug with bovine serum albumin: Insights from spectroscopic and molecular docking techniques. Chem Phys 2021. [DOI: 10.1016/j.chemphys.2021.111139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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15
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Singh N, Chandra R. Probing the binding interaction of ortho-vanillin derived chalcone with lysozyme: A biophysical studies aided by in silico calculations. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Abdelsattar AS, Dawoud A, Helal MA. Interaction of nanoparticles with biological macromolecules: a review of molecular docking studies. Nanotoxicology 2020; 15:66-95. [PMID: 33283572 DOI: 10.1080/17435390.2020.1842537] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The high frequency of using engineered nanoparticles in various medical applications entails a deep understanding of their interaction with biological macromolecules. Molecular docking simulation is now widely used to study the binding of different types of nanoparticles with proteins and nucleic acids. This helps not only in understanding the mechanism of their biological action but also in predicting any potential toxicity. In this review, the computational techniques used in studying the nanoparticles interaction with biological macromolecules are covered. Then, a comprehensive overview of the docking studies performed on various types of nanoparticles will be offered. The implication of these predicted interactions in the biological activity and/or toxicity is also discussed for each type of nanoparticles.
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Affiliation(s)
- Abdallah S Abdelsattar
- Center for X-Ray and Determination of Structure of Matter, Zewail City of Science and Technology, Giza, Egypt
| | - Alyaa Dawoud
- Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo, Egypt
| | - Mohamed A Helal
- Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Giza, Egypt.,Medicinal Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
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17
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Mechanistic interaction of triflate based noscapine ionic liquid with BSA: Spectroscopic and chemoinformatics approaches. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113695] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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18
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Khan Z, Al-Thabaiti SA. Interaction of CTAB capped gold@iron bimetallic nanomaterials with bovine serum albumin: A multi-technique approach. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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19
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Gandhi S, Issar S, Mahapatro AK, Roy I. Cobalt ferrite nanoparticles for bimodal hyperthermia and their mechanistic interactions with lysozyme. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113194] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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20
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Tian Z, Tian L, Shi M, Zhao S, Guo S, Luo W, Wang C, Tian Z. Investigation of the interaction of a polyamine-modified flavonoid with bovine serum albumin (BSA) by spectroscopic methods and molecular simulation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 209:111917. [PMID: 32679511 DOI: 10.1016/j.jphotobiol.2020.111917] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 05/20/2020] [Accepted: 05/22/2020] [Indexed: 02/07/2023]
Abstract
The interaction between BSA and compound 1 was studied by UV-vis, fluorescence and circular dichroism spectroscopy under physiological conditions (pH = 7.4). Molecular docking and molecular dynamics analyses were also performed. The results showed that compound 1 could bind to BSA. When compound 1 bound to BSA, there were a series of changes in the spectral properties of BSA, which were an enhancement effect of the UV-Vis spectrum of BSA, fluorescence quenching and a weak conformational change in the CD spectrum. The results of the fluorescence experiments at 298, 303 and 310 K showed that fluorescence quenching caused by the addition of compound 1 to BSA was generally static quenching accompanied by a dynamic quenching process, which was shown by the quenching constants of 2.010 × 104 L∙M-1, 1.850 × 104 L∙M-1, and 1.970 × 104 L∙M-1 at the three different temperatures, respectively. From the obtained binding constants and thermodynamic parameters, it was found that hydrophobic forces played an important role in the binding process of 1 to BSA. The results of synchronous fluorescence and three-dimensional fluorescence showed that compound 1 caused a weak conformational change in BSA. Docking results showed that compound 1 was located at binding site II of bovine serum albumin protease. In addition, the flavonoid moiety of compound 1 contributes to the hydrophobic binding of compound 1 to BSA. The results of molecular dynamics, including the root-mean-square deviation (RMSD) and RMS fluctuation (RMSF) values, showed that the binding of compound 1 to BSA did not cause a significant conformational change in BSA.
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Affiliation(s)
- Zhiyong Tian
- Institute for innovative drug design and evaluation, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Luyao Tian
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, Henan 475001, China
| | - Man Shi
- Institute for innovative drug design and evaluation, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Sihan Zhao
- Institute for innovative drug design and evaluation, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Shudi Guo
- Institute for innovative drug design and evaluation, School of Pharmacy, Henan University, Kaifeng 475004, China
| | - Wen Luo
- The Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
| | - Chaojie Wang
- The Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China.
| | - Zhihui Tian
- Smart city institute of Zhengzhou University, Zhengzhou, Henan 450001, China.
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21
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Ameen F, Siddiqui S, Jahan I, Nayeem SM, Rehman SU, Tabish M. A detailed insight into the interaction of memantine with bovine serum albumin: A spectroscopic and computational approach. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112671] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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