1
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Fan M, Zhong X, Huang Y, Peng Z, Wang G. Synthesis, biological evaluation and molecular docking studies of chromone derivatives as potential α-glucosidase inhibitors. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134575] [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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2
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Estevão BM, de Freitas CF, Franciscato DS, de Assis FF, de Oliveira KT, Hioka N, Caetano W, Muniz EC. Synthetic chlorin derivative self-prevented from aggregation: Behavior in homogeneous medium for PDT applications. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114363] [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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3
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Paul S, Ghanti R, Sardar PS, Majhi A. Synthesis of a novel coumarin derivative and its binding interaction with serum albumins. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02505-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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4
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Fan Y, Xu Y, Han QG, Shen LL, Xu H, Wu ZB, Xu X, Ying M, He ZD, Hu ZL. Exploring inhibition mechanism and nature of lipase by Ligupurpuroside A extracted from Ku-Ding tea. Med Chem Res 2018. [DOI: 10.1007/s00044-018-2194-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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5
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Bhuiya S, Haque L, Das S. Association of iminium and alkanolamine forms of the benzo[c]phenanthridine alkaloid chelerythrine with human serum albumin: photophysical, thermodynamic and theoretical approach. NEW J CHEM 2018. [DOI: 10.1039/c7nj02972a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Association of isoforms of chelerythrine (CHL) with HSA.
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Affiliation(s)
- Sutanwi Bhuiya
- Department of Chemistry
- Jadavpur University
- Kolkata 700 032
- India
| | - Lucy Haque
- Department of Chemistry
- Jadavpur University
- Kolkata 700 032
- India
| | - Suman Das
- Department of Chemistry
- Jadavpur University
- Kolkata 700 032
- India
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6
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Zhang S, Fu X, Ren D, Li X, Yang L, Yu X. Synthesis of 3-Cyano-21-Nitro-N-Confused Porphyrin Derivatives by Isoamyl Nitrite. JOURNAL OF CHEMICAL RESEARCH 2017. [DOI: 10.3184/174751917x15027989008991] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The 3-cyano-21-nitro- N-confused porphyrin derivatives were synthesised by the nitration reaction of 3-cyano- N-confused-porphyrin with isoamyl nitrite at room temperature in moderate yield. The reaction took placed regioselectively in 21-position carbon of inverted pyrrole of N-confused porphyrins.
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Affiliation(s)
- Shaowei Zhang
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P.R. China
| | - Xinliang Fu
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P.R. China
| | - Demin Ren
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P.R. China
| | - Xiaofang Li
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P.R. China
| | - Leilei Yang
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P.R. China
| | - Xianyong Yu
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P.R. China
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7
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Bayraktutan T, Onganer Y. Biophysical influence of coumarin 35 on bovine serum albumin: Spectroscopic study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 171:90-96. [PMID: 27494219 DOI: 10.1016/j.saa.2016.07.043] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 07/18/2016] [Accepted: 07/30/2016] [Indexed: 06/06/2023]
Abstract
The binding mechanism and protein-fluorescence probe interactions between bovine serum albumin (BSA) and coumarin 35 (C35) was investigated by using UV-Vis absorption and fluorescence spectroscopies since they remain major research topics in biophysics. The spectroscopic data indicated that a fluorescence quenching process for BSA-C35 system was occurred. The fluorescence quenching processes were analyzed using Stern-Volmer method. In this regard, Stern-Volmer quenching constants (KSV) and binding constants were calculated at different temperatures. The distance r between BSA (donor) and C35 (acceptor) was determined by exploiting fluorescence resonance energy transfer (FRET) method. Synchronous fluorescence spectra were also studied to observe information about conformational changes. Moreover, thermodynamics parameters were calculated for better understanding of interactions and conformational changes of the system.
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Affiliation(s)
- Tuğba Bayraktutan
- Department of Chemistry, Faculty of Science, Atatürk University, 25240 Erzurum, Turkey
| | - Yavuz Onganer
- Department of Chemistry, Faculty of Science, Atatürk University, 25240 Erzurum, Turkey.
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8
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Paul S, Sepay N, Sarkar S, Roy P, Dasgupta S, Saha Sardar P, Majhi A. Interaction of serum albumins with fluorescent ligand 4-azido coumarin: spectroscopic analysis and molecular docking studies. NEW J CHEM 2017. [DOI: 10.1039/c7nj02335a] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The investigation of the binding of 4-AC to biomolecular systems using photophysical techniques and molecular docking studies.
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Affiliation(s)
- Sandip Paul
- Department of Chemistry
- Presidency University
- Kolkata 700 073
- India
| | - Nasim Sepay
- Department of Chemistry
- Presidency University
- Kolkata 700 073
- India
| | - Shrabana Sarkar
- Department of Chemistry
- Presidency University
- Kolkata 700 073
- India
| | - Pritam Roy
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur
- India
| | - Swagata Dasgupta
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur
- India
| | - Pinki Saha Sardar
- The Department of Chemistry
- The Bhawanipur Education Society College
- Kolkata 700020
- India
| | - Anjoy Majhi
- Department of Chemistry
- Presidency University
- Kolkata 700 073
- India
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9
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Khodov IA, Maltceva OV, Klochkov VV, Koifman OI, Mamardashvili NZ. N-Confused porphyrins: complexation and 1H NMR studies. NEW J CHEM 2017. [DOI: 10.1039/c7nj01814b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The complexation of 2-aza-21-carba-tetraphenylporphyrin and 2-aza-2-methyl-5,10,15,20-tetraphenyl-21-carbaporphyrin with nickel and zinc acetates in organic solvents has been investigated by UV-Vis spectroscopy and 1H NMR.
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Affiliation(s)
- Ilya A. Khodov
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences
- Ivanovo
- Russia
- Kazan Federal University
- Kazan
| | - Olga V. Maltceva
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences
- Ivanovo
- Russia
| | | | - Oscar I. Koifman
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences
- Ivanovo
- Russia
- Research Institute of Macroheterocycles
- Ivanovo State University of Chemistry and Technology
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10
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Wu Z, Shen L, Han Q, Lu J, Tang H, Xu X, Xu H, Huang F, Xie J, He Z, Zeng Z, Hu Z. Mechanism and Nature of Inhibition of Trypsin by Ligupurpuroside A, a Ku-Ding Tea Extract, Studied by Spectroscopic and Docking Methods. FOOD BIOPHYS 2016. [DOI: 10.1007/s11483-016-9465-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Jattinagoudar LN, Nandibewoor ST, Chimatadar SA. Binding of fexofenadine hydrochloride to bovine serum albumin: structural considerations by spectroscopic techniques and molecular docking. J Biomol Struct Dyn 2016; 35:1200-1214. [DOI: 10.1080/07391102.2016.1183229] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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12
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Peng SH, Lv BB, Ali A, Wang JM, Ying X, Wang H, Liu JB, Ji LN, Liu HY. The magnetic properties, DNA/HSA binding and nuclease activity of manganese N-confused porphyrin. J PORPHYR PHTHALOCYA 2016. [DOI: 10.1142/s1088424616500449] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The first oxidative cleavage of DNA by manganese [Formula: see text]-confused porphyrin [chloro(2-aza-2-methyl-5,10,15,20-tetrakis([Formula: see text]-chlorophenyl)-21-carbaporphyrin)manganese(III), 1] using H2O2 as oxidant agent and its magnetic, calf thymus DNA(ct-DNA)- and human serum albumin (HSA) binding properties were investigated. The magnitude of the axial (D) zero-field splitting for the mononuclear Mn(III) center in 1 was determined to be approximately 2.71 cm[Formula: see text] by paramagnetic susceptibility measurements. The DNA- and HSA binding experimental results showed that 1 bound to ct-DNA via an outside groove binding mode and the hydrophobic cavity located in subdomain IIA of HSA with the binding constant of 4.144 × 105 M[Formula: see text] and [Formula: see text] 106 M[Formula: see text], respectively. Thermodynamic parameters revealed that both DNA- and HSA binding were spontaneous process. The main driven forces were the hydrogen bond and van der Waals for the former, but hydrophobic interaction for the latter, which were further confirmed by molecular docking modeling. Manganese [Formula: see text]-confused porphyrin 1 could cleave the supercoiled plasmid DNA efficiently in the presence of hydrogen peroxide. Hydroxyl radical ([Formula: see text]OH) was found the active species for oxidative damage of DNA.
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Affiliation(s)
- Su-Hong Peng
- Department of Chemistry, South China University of Technology, Guangzhou 510641, China
| | - Biao-Biao Lv
- Department of Applied Physics, South China University of Technology, Guangzhou 510641, China
| | - Atif Ali
- Department of Chemistry, South China University of Technology, Guangzhou 510641, China
| | - Jia-Min Wang
- Department of Chemistry, South China University of Technology, Guangzhou 510641, China
| | - Xiao Ying
- Department of Applied Physics, South China University of Technology, Guangzhou 510641, China
| | - Hui Wang
- State Key Laboratory Optoelectronics Materials and Technologies, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jin-Bin Liu
- Department of Chemistry, South China University of Technology, Guangzhou 510641, China
| | - Liang-Nian Ji
- State Key Laboratory Optoelectronics Materials and Technologies, Sun Yat-Sen University, Guangzhou 510275, China
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Hai-Yang Liu
- Department of Chemistry, South China University of Technology, Guangzhou 510641, China
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13
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A new homoleptic coordination compound of ruthenium and norfloxacin and its interaction with human serum albumin. INORG CHEM COMMUN 2016. [DOI: 10.1016/j.inoche.2015.11.024] [Citation(s) in RCA: 8] [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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14
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Fang Y, Xu H, Shen L, Huang F, Yibulayin S, Huang S, Tian S, Hu Z, He Z, Li F, Li Y, Zhou K. Study on the mechanism of the interaction between acteoside and pepsin using spectroscopic techniques. LUMINESCENCE 2015; 30:859-66. [DOI: 10.1002/bio.2833] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 10/28/2014] [Accepted: 11/19/2014] [Indexed: 12/23/2022]
Affiliation(s)
- Yifeng Fang
- College of Life Sciences; Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University; Shenzhen 518060 China
| | - Hong Xu
- College of Life Sciences; Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University; Shenzhen 518060 China
| | - Liangliang Shen
- College of Life Sciences; Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University; Shenzhen 518060 China
| | - Fengwen Huang
- College of Life Sciences; Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University; Shenzhen 518060 China
| | - Shadaiti Yibulayin
- College of Life Sciences; Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University; Shenzhen 518060 China
| | - Songyang Huang
- College of Life Sciences; Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University; Shenzhen 518060 China
| | - Shengli Tian
- College of Life Sciences; Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University; Shenzhen 518060 China
| | - Zhangli Hu
- College of Life Sciences; Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University; Shenzhen 518060 China
| | - Zhendan He
- School of Medicine; Shenzhen University; Shenzhen 518060 China
| | - Fangrong Li
- Shenzhen Entry-Exit inspection and Quarantine Bureau; Shenzhen 518001 China
| | - Yinong Li
- Shenzhen Entry-Exit inspection and Quarantine Bureau; Shenzhen 518001 China
| | - Kai Zhou
- Shenzhen Marine Environment and Resource Monitoring Center; Shenzhen 518060 China
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15
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Shen L, Xu H, Huang F, Li Y, Xiao H, Yang Z, Hu Z, He Z, Zeng Z, Li Y. Investigation on interaction between Ligupurpuroside A and pepsin by spectroscopic and docking methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 135:256-263. [PMID: 25078459 DOI: 10.1016/j.saa.2014.06.087] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 06/02/2014] [Accepted: 06/06/2014] [Indexed: 06/03/2023]
Abstract
Ligupurpuroside A is one of the major glycoside in Ku-Din-Cha, a type of Chinese functional tea. In order to better understand its digestion and metabolism in humans, the interaction between Ligupurpuroside A and pepsin has been investigated by fluorescence spectra, UV-vis absorption spectra and synchronous fluorescence spectra along with molecular docking method. The fluorescence experiments indicate that Ligupurpuroside A can effectively quench the intrinsic fluorescence of pepsin through a combined quenching way at the low concentration of Ligupurpuroside A, and a static quenching procedure at the high concentration. The binding constant, binding sites of Ligupurpuroside A with pepsin have been calculated. The thermodynamic analysis suggests that non-covalent reactions, including electrostatic force, hydrophobic interaction and hydrogen bond are the main forces stabilizing the complex. According to the Förster's non-radiation energy transfer theory, the binding distance between pepsin and Ligupurpuroside A was calculated to be 3.15 nm, which implies that energy transfer occurs between pepsin and Ligupurpuroside A. Conformation change of pepsin was observed from UV-vis absorption spectra and synchronous fluorescence spectra under experimental conditions. In addition, all these experimental results have been validated by the protein-ligand docking studies which show that Ligupurpuroside A is located in the cleft between the domains of pepsin.
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Affiliation(s)
- Liangliang Shen
- College of Life Sciences, Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen 518060, China
| | - Hong Xu
- College of Life Sciences, Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen 518060, China.
| | - Fengwen Huang
- College of Life Sciences, Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen 518060, China
| | - Yi Li
- College of Life Sciences, Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen 518060, China
| | - Huafeng Xiao
- College of Life Sciences, Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen 518060, China
| | - Zhen Yang
- College of Life Sciences, Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen 518060, China
| | - Zhangli Hu
- College of Life Sciences, Shenzhen Key Laboratory of Marine Bioresources and Ecology/Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen 518060, China
| | - Zhendan He
- School of Medicine, Shenzhen University, Shenzhen 518060, China.
| | - Zheling Zeng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Yinong Li
- Center of Inspection and Quarantine of Shenzhen Entry & Exit Animal, Plant & Food, Shenzhen 518000, China
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16
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Zhang X, Lin Y, Liu L, Lin C. Study on the synthesis of sulfonamide derivatives and their interaction with bovine serum albumin. LUMINESCENCE 2014; 30:269-79. [PMID: 24923629 DOI: 10.1002/bio.2725] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Revised: 04/10/2014] [Accepted: 05/22/2014] [Indexed: 11/10/2022]
Abstract
Three sulfonamide derivatives (SAD) were first synthesized from p-hydroxybenzoic acid and sulfonamides (sulfadimidine, sulfamethoxazole and sulfachloropyridazine sodium) and were characterized by elemental analysis, (1) H NMR and MS. The interaction between bovine serum albumin (BSA) and SAD was studied using UV/vis absorption spectroscopy, fluorescence spectroscopy, time-resolved fluorescence spectroscopy and circular dichroism spectra under imitated physiological conditions. The experimental results indicated that SAD effectively quenched the intrinsic fluorescence of BSA via a static quenching process. The thermodynamic parameters showed that hydrogen bonding and van der Waal's forces were the predominant intermolecular forces between BSA and two SADs [4-((4-(N-(4,6-dimethylpyrimidin-2-yl)sulfamoyl)phenyl)carbamoyl)phenyl acetate and 4-((4-(N-(5-methylisoxazol-3-yl)sulfamoyl)phenyl)carbamoyl)phenyl acetate], but hydrophobic forces played a major role in the binding process of BSA and 4-((4-(N-(6-chloropyridazin-3-yl)sulfamoyl)phenyl) carbamoyl)phenyl acetate. In addition, the effect of SAD on the conformation of BSA was investigated using synchronous fluorescence spectroscopy and circular dichroism spectra. Molecular modeling results showed that SAD was situated in subdomain IIA of BSA.
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Affiliation(s)
- Xuehong Zhang
- College of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China; School of Chemistry and Life Science, Guangxi Teachers Education University, Nanning, 530001, China
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17
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Wang Q, Zhang S. Studies on binding interactions between clenbuterol hydrochloride and two serum albumins by multispectroscopic approaches in vitro. LUMINESCENCE 2013; 29:492-9. [PMID: 24030872 DOI: 10.1002/bio.2574] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 06/27/2013] [Accepted: 08/04/2013] [Indexed: 11/11/2022]
Abstract
In this study, binding properties of clenbuterol hydrochloride (CL) with human serum albumin (HSA) and bovine serum albumin (BSA) were examined using constant protein concentrations and various CL contents under physiological conditions. The binding parameters were confirmed using fluorescence quenching spectroscopy at various temperatures. The experimental results confirmed that the quenching mechanisms of CL and HSA/BSA were both static quenching processes. The thermodynamic parameters, namely, enthalpy change (ΔH) and entropy change (ΔS), were calculated according to the van't Hoff equation, which suggested that the electrostatic interactions were the predominant intermolecular forces in stabilizing the CL-HSA complex, and hydrogen bonds and van der Waals force were the predominant intermolecular forces in stabilizing the CL-BSA complex. Furthermore, the conformational changes of HSA/BSA in the presence of CL were determined using the data obtained from three-dimensional fluorescence spectroscopy, ultraviolet-visible absorption spectroscopy and circular dichroism spectroscopy.
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Affiliation(s)
- Qin Wang
- School of Chemistry and Environment Science, Shaanxi University of Technology, Hanzhong Shaanxi, 723000, China
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18
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Lee EM, Gwon SY, Son YA, Kim SH. Fluorescence quenching of carbazole by 2-chloro-3,5-dinitrobenzotrifluoride-ethylamines intermolecular charge-transfer complex. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 103:453-455. [PMID: 23266014 DOI: 10.1016/j.saa.2012.11.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 11/02/2012] [Accepted: 11/06/2012] [Indexed: 06/01/2023]
Abstract
The interaction between carbazole and 2-chloro-3,5-dinitrobenzotrifluoride-ethylamines, (mono-, di-, and triethylamine) charge-transfer complex in DMSO was studied using fluorescence spectroscopy. The positive deviation from linearity has been observed in the Stern-Volmer plots. The experimental results showed that the fluorescence of carbazole was quenched by 2-chloro-3,5-dinitrobenzotrifluoride-ethylamines charge-transfer complex through a combined quenching procedure. The Stern-Volmer quenching constants, K(SV), have been determined and found to be greater quenching efficiency of ethylamine. Carbazole/2-chloro-3,5-dinitrobenzotrifluoride loaded PMMA film was exposed to ethylamine vapor, where the resulting absorption and emission changing properties were clearly monitored.
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Affiliation(s)
- Eun-Mi Lee
- BK21 FTIT Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon 305-764, Republic of Korea
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