1
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Barut BB, Erkmen C, İpek S, Yıldırım S, Üstündağ A, Uslu B. Analytical studies on some pesticides with antifungal effects: Simultaneous determination by HPLC, investigation of interactions with DNA and DNA damages. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1229:123862. [PMID: 37696115 DOI: 10.1016/j.jchromb.2023.123862] [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: 06/23/2023] [Revised: 08/11/2023] [Accepted: 08/19/2023] [Indexed: 09/13/2023]
Abstract
A simple, and fast method was developed for the simultaneous determination of five fungicides, namely thiram (THR), epoxiconazole (EPO), hexaconazole (HEX), tebuconazole (TEB), and diethofencarb (DIE), in different matrices by HPLC-UV. Parameters influencing the peak shape and resolution, such as the composition of mobile phase, pH and concentration of buffer solution, and column temperature, were examined and optimized. The proposed method was validated in terms of linearity, sensitivity, precision, and accuracy. Forced degradation studies were carried out for all analytes to demonstrate the specificity of the method and to evaluate the stability of analytes under different conditions. DNA interaction and DNA damage studies were conducted by HPLC and comet assay, respectively. All fungicides were found to bind DNA, except for DIE. While the binding coefficients for EPO, HEX, and TEB were of the order of 104, THR was found to interact more strongly with DNA with a binding coefficient of higher than 106. DIE did not induce DNA damage at any concentration tested. On the other hand, TEB, HEX, and EPO induced DNA damage up to 30 µg/mL. THR showed cytotoxic effects at 20 and 30 µg/mL and caused significant DNA damage at lower concentrations.
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Affiliation(s)
- Boğaç Buğra Barut
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560 Ankara, Turkiye; Ankara University, The Graduate School of Health Sciences, 06110 Ankara, Turkiye
| | - Cem Erkmen
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560 Ankara, Turkiye
| | - Seda İpek
- Ankara University, The Graduate School of Health Sciences, 06110 Ankara, Turkiye; Ankara University, Faculty of Pharmacy, Department of Pharmaceutical Toxicology, 06560 Ankara, Turkiye
| | - Sercan Yıldırım
- Karadeniz Technical University, Faculty of Pharmacy, Department of Analytical Chemistry, Farabi Street, 61080 Trabzon, Turkiye
| | - Aylin Üstündağ
- Ankara University, Faculty of Pharmacy, Department of Pharmaceutical Toxicology, 06560 Ankara, Turkiye
| | - Bengi Uslu
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560 Ankara, Turkiye.
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2
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Ma J, Huang G, Mo C, Li J, Yan L, Zhang Q. Insights into the intercalative binding of benzo[b]fluoranthene with herring sperm DNA in vitro and its application. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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3
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Lei Y, Zhang Z, Ma X, Cai R, Dai L, Guo Y, Tuo X. Deciphering the interaction of perampanel and calf thymus DNA: A multi-spectroscopic and computer modelling study. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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4
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Ponkarpagam S, Vennila KN, Elango KP. Intercalation of diafenthiuron insecticide with calf thymus DNA: spectroscopic and molecular dynamics analysis. J Biomol Struct Dyn 2022:1-9. [PMID: 35848349 DOI: 10.1080/07391102.2022.2098824] [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: 10/17/2022]
Abstract
A series of biophysical experiments like UV-Vis, fluorescence, circular dichroism (CD), competitive displacement assays, voltammetric studies, viscosity measurements and denaturation effect and metadynamics simulation studies were performed to establish the mode of binding of diafenthiuron (DF) insecticide with calf thymus DNA (CT-DNA). Analysis of absorption and fluorescence spectra in Tris-HCl buffer of pH 7.4 indicates the formation of a complex between DF and CT-DNA and the binding constant of which is in the order of 104 M-1. Competitive displacement assay with ethidium bromide (EB) and Hoechst 33258 suggests that the most probable mode of binding of DF with CT-DNA may be via intercalation mode. The results of other experiments such as CD spectral studies, viscosity measurements and the effect of denaturation agent urea support the intercalation of DF with CT-DNA. Thermodynamic parameters (ΔHo, ΔSo and ΔGo) reveal that hydrogen bonds (H-bonds) or van der Waals (vdW) force is the main binding force in the spontaneous interaction between DF and CT-DNA. Molecular dynamics (MD) simulation studies confirmed the intercalation of DF into the base pairs of CT-DNA.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- S Ponkarpagam
- Department of Chemistry, Gandhigram Rural Institute (Deemed to be University), Gandhigram, India
| | - K N Vennila
- Department of Chemistry, Gandhigram Rural Institute (Deemed to be University), Gandhigram, India
| | - Kuppanagounder P Elango
- Department of Chemistry, Gandhigram Rural Institute (Deemed to be University), Gandhigram, India
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5
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Liu Y, Zhu J, Yu J, Chen X, Zhang S, Cai Y, Li L. Curcumin as a mild natural α‐glucosidase inhibitor: a study on its mechanism
in vitro. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15433] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Yujia Liu
- Key Laboratory of Healthy Food Development and Nutrition Regulation of China National Light Industry School of Chemical Engineering and Energy Technology Dongguan University of Technology Dongguan 523808 China
| | - Jie Zhu
- Key Laboratory of Healthy Food Development and Nutrition Regulation of China National Light Industry School of Chemical Engineering and Energy Technology Dongguan University of Technology Dongguan 523808 China
| | - Jiamei Yu
- Key Laboratory of Healthy Food Development and Nutrition Regulation of China National Light Industry School of Chemical Engineering and Energy Technology Dongguan University of Technology Dongguan 523808 China
| | - Xu Chen
- Key Laboratory of Healthy Food Development and Nutrition Regulation of China National Light Industry School of Chemical Engineering and Energy Technology Dongguan University of Technology Dongguan 523808 China
| | - Shuyan Zhang
- Key Laboratory of Healthy Food Development and Nutrition Regulation of China National Light Industry School of Chemical Engineering and Energy Technology Dongguan University of Technology Dongguan 523808 China
| | - Yanxue Cai
- Key Laboratory of Healthy Food Development and Nutrition Regulation of China National Light Industry School of Chemical Engineering and Energy Technology Dongguan University of Technology Dongguan 523808 China
| | - Lin Li
- Key Laboratory of Healthy Food Development and Nutrition Regulation of China National Light Industry School of Chemical Engineering and Energy Technology Dongguan University of Technology Dongguan 523808 China
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6
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Structure-dependent of 3-fluorooxindole derivatives interacting with ctDNA: Binding effects and molecular docking approaches. Bioorg Chem 2022; 121:105698. [DOI: 10.1016/j.bioorg.2022.105698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 12/14/2021] [Accepted: 02/18/2022] [Indexed: 11/23/2022]
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7
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Shen B, Yang H, Chen J, Liu X, Zhou M. Study the interaction between juglone and calf thymus DNA by spectroscopic and molecular docking techniques. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 261:119998. [PMID: 34091358 DOI: 10.1016/j.saa.2021.119998] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 04/25/2021] [Accepted: 05/21/2021] [Indexed: 06/12/2023]
Abstract
Juglone (Jug) is one of the main active substances of Cortex Juglandis Mandshuricae in a folk anti-cancer prescription. Previously, there were few studies on its interaction with DNA and mechanism of action. The present paper studied, the mechanism of action between Jug and calf thymus DNA (ctDNA) by fluorescence spectroscopy, together with ethidium bromide (EB) fluorescence probe, UV-vis absorption spectroscopy, salt effect and ctDNA melting point (Tm) experiment, resonance scattering spectroscopy and molecular docking under the simulated human physiological conditions. The experimental findings indicated that Jug quiescently quenched the fluorescence of EB-ctDNA system, characteristic absorption peak intensity of ctDNA presented a decolorization effect after the interaction of ctDNA and Jug, the interaction with ctDNA enhanced of Jug resonance scattering peak and generated new resonance scattering peak, the salt exerted less effect on the interaction between Jug and ctDNA molecules, and the interaction with Jug increased the Tm value of ctDNA by 5.0 °C The binding constant (KA) between Jug and ctDNA was 2.12 × 105 L/mol (310 K) and the number of binding sites (n) was about 1. The interaction between Jug and ctDNA was an entropically driven spontaneous and endothermic process. The results of molecular docking further showed that the naphthoquinone plane was embedded in the region between the two TA bases in the ctDNA groove, and the 5'-hydroxyl and 4-naphthoquinone groups extended to the outside of the ctDNA double helix.
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Affiliation(s)
- Bingjun Shen
- Department of Bioengineering, School of Life Science and Technology, Changchun University of Science and Technology, NO.7186 Weixing Road, Changchun City, Jilin Province 085238, PR China.
| | - Huiru Yang
- Department of Bioengineering, School of Life Science and Technology, Changchun University of Science and Technology, NO.7186 Weixing Road, Changchun City, Jilin Province 085238, PR China
| | - Jiaqi Chen
- Department of Bioengineering, School of Life Science and Technology, Changchun University of Science and Technology, NO.7186 Weixing Road, Changchun City, Jilin Province 085238, PR China
| | - Xiaoyun Liu
- Department of Bioengineering, School of Life Science and Technology, Changchun University of Science and Technology, NO.7186 Weixing Road, Changchun City, Jilin Province 085238, PR China
| | - Mingyue Zhou
- Department of Bioengineering, School of Life Science and Technology, Changchun University of Science and Technology, NO.7186 Weixing Road, Changchun City, Jilin Province 085238, PR China
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Su ZQ, Yin MM, Yang ZQ, Hu AH, Hu YJ. Interactions between Two Kinds of Gold Nanoclusters and Calf Thymus Deoxyribonucleic Acid: Directions for Preparations to Applications. Biomacromolecules 2021; 22:4738-4747. [PMID: 34605641 DOI: 10.1021/acs.biomac.1c01028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Gold nanoclusters (AuNCs) have shown promising applications in biotherapy owing to their ultrasmall size and unique molecular-like properties. In order to better guide the preparations and applications of AuNCs, dihydrolipoic acid-protected AuNCs (DHLA-AuNCs) and glutathione-protected AuNCs (GSH-AuNCs) were selected as models and the interactions between them and calf thymus DNA (ctDNA) were studied in detail. The results showed that there was a small difference in the binding mechanisms and forces between both AuNCs and ctDNA. The quenching mechanisms of both AuNCs to (ctDNA-HO) were completely different. The binding constants indicated that the binding strength between DHLA-AuNCs and ctDNA was greater than those of GSH-AuNCs. The conformation investigations showed that GSH-AuNCs had a greater impact on the conformation of ctDNA, and both AuNCs were more inclined to interact with the A-T base pairs of ctDNA. These results indicate that the surface ligand had a significant effect on the interactions between AuNCs and DNA and might also further affect the applications of AuNCs, and these results could guide the preparations of AuNCs. For DHLA-AuNCs, their good biocompatibility made them a potential candidate for application in imaging, drug treatment, sensing, and so on. The resulting base accumulation of ctDNA and weak interactions made GSH-AuNCs have great potential for application in gene therapy, which was consistent with the current reports on the applications of these two AuNCs. This work has pointed out the directions for the preparations and applications of AuNCs.
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Affiliation(s)
- Zheng-Qi Su
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, P. R. China
| | - Miao-Miao Yin
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, P. R. China
| | - Zi-Qing Yang
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, P. R. China
| | - Ao-Hong Hu
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, P. R. China
| | - Yan-Jun Hu
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, P. R. China
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9
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Mechanistic insights into the inhibition of pancreatic lipase by apigenin: Inhibitory interaction, conformational change and molecular docking studies. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116505] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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10
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Zhang G, Li N, Zhang Y, Pan J, Gong D. Binding mechanism of 4-octylphenol with human serum albumin: Spectroscopic investigations, molecular docking and dynamics simulation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 255:119662. [PMID: 33780895 DOI: 10.1016/j.saa.2021.119662] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/23/2021] [Accepted: 03/01/2021] [Indexed: 06/12/2023]
Abstract
4-Octylphenol (OP) is an environmental estrogen that can enter organisms through the food chain and cause various toxic effects. Here, the interaction between OP and human serum albumin (HSA) was explored through multipectral, molecular docking and dynamics simulation. The results showed that OP and HSA formed a ground state complex through a static quenching mechanism, and the interaction was spontaneously driven by hydrogen bonds and hydrophobic interaction forces. The binding constant at different temperatures was measured to be on the order of 105 L mol-1. Site competition experiments suggested that OP interacted with amino acid residues Lys195, Cy245 and Cys246 located at the Sudlow site I of HSA, resulting in a more stretched protein peptide. The presence of OP increased the surface hydrophobicity of HSA, and reduced the content of α-helix in HSA by 3.4%. FT-IR spectra showed that OP interacted with the C=O and C-H groups of the polypeptide backbone. Molecular docking demonstrated that OP mainly bound to Site I of HSA and hydrogen bonds participated in the interaction. In addition, molecular dynamics simulations further explored the stability and dynamic behavior of the OP-HSA complex through RMSD, RMSF, SASA and Rg.
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Affiliation(s)
- Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Na Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Ying Zhang
- Division of Accounting, Nanchang University, Nanchang 330047, China
| | - Junhui Pan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
| | - Deming Gong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
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11
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Ponkarpagam S, Mahalakshmi G, Vennila KN, Elango KP. Concentration-dependent mode of binding of drug oxatomide with DNA: multi-spectroscopic, voltammetric and metadynamics simulation analysis. J Biomol Struct Dyn 2021; 40:8394-8404. [PMID: 33896411 DOI: 10.1080/07391102.2021.1911860] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The interaction between antihistaminic drug oxatomide (OXT) and calf-thymus DNA (CT-DNA) has been investigated in a physiological buffer (pH 7.4) using UV-Vis, fluorescence, 1H NMR and circular dichroism spectral techniques coupled with viscosity measurements, KI quenching, voltammetry and in silico molecular modeling studies. OXT binds with CT-DNA in a concentration-dependent manner. At a lower [Drug]/[CT-DNA] molar ratio (0.6-0.1), OXT intercalates into the base pairs of CT-DNA, while at a higher [Drug]/[CT-DNA] molar ratio (13-6), the drug binds in the minor grooves of CT-DNA. The binding constants for the interaction are found to be in the order of 103-105 M-1, and the groove binding mode of interaction exhibits a slightly higher binding constant than that of intercalative mode. Thermodynamic analysis of binding constants at three different temperatures suggests that both these modes of binding are mainly driven by hydrophobic interactions (ΔHo > 0 and ΔSo > 0). Voltammetric investigations indicate that the electro-reduction of OXT is an adsorption controlled process and shifts in reduction peak potentials reiterate the concentration-dependent mode of binding of the drug with CT-DNA. The free energy landscape obtained at the all-atom level, using metadynamics simulation studies, revealed two major binding forces: partial intercalation and minor groove binding, which corroborate well with the experimental results.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sundararajan Ponkarpagam
- Department of Chemistry, Gandhigram Rural Institute (Deemed to be University), Gandhigram, India
| | - Govindaraj Mahalakshmi
- Department of Chemistry, Gandhigram Rural Institute (Deemed to be University), Gandhigram, India
| | - Kailasam N Vennila
- Department of Chemistry, Gandhigram Rural Institute (Deemed to be University), Gandhigram, India
| | - Kuppanagounder P Elango
- Department of Chemistry, Gandhigram Rural Institute (Deemed to be University), Gandhigram, India
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12
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Nengroo ZR, Ahmad A, Tantary A, Ganie AS, Shah ZU. Design and synthesis of fatty acid derived 4-methoxybenzylamides as antimicrobial agents. Heliyon 2021; 7:e06842. [PMID: 33981896 PMCID: PMC8082265 DOI: 10.1016/j.heliyon.2021.e06842] [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: 02/18/2021] [Revised: 03/27/2021] [Accepted: 04/13/2021] [Indexed: 11/30/2022] Open
Abstract
A new series of fatty acid amides viz. N-(4-methoxybenzyl)undec-10-enamide (5), (9Z, 12R)-12-Hydroxy-N-(4-methoxybenzyl)octadec-9-enamide (6) and N-(4-methoxy benzyl)oleamide (7) were synthesized by using a suitable synthetic route involving DCC and DMAP as catalysts. The synthesized compounds were characterized through FTIR, NMR spectroscopy, and mass spectrometry. DNA binding studies through spectroscopy and molecular docking were performed to evaluate the binding mechanism of molecules (5-7) with (ctDNA). The inhibition zone with reference to standards, Minimum Inhibitory Concentration (MIC) and Minimum Killing Concentration (MKC) values were determined to study the in vitro antimicrobial activity for tested compounds. Among all the tested compounds, the compound 6 containing hydroxy group at the fatty acid chain showed most powerful antifungal as well as antibacterial activity.
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Affiliation(s)
| | - Aijaz Ahmad
- Department of Biochemistry, Aligarh Muslim University, Aligarh 202002, India
| | - Adil Tantary
- Department of Botany, Aligarh Muslim University, Aligarh 202002, India
| | - Adil Shafi Ganie
- Environmental Chemistry Section, Department of Chemistry Aligarh Muslim University, Aligarh 202002, India
| | - Zeshan Umar Shah
- Department of Zoology, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
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13
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Li F, Tang Y. Inhibition mechanism: Phytic acid, NADH as a peroxidase inhibitor. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 244:118856. [PMID: 32882659 DOI: 10.1016/j.saa.2020.118856] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 08/12/2020] [Accepted: 08/15/2020] [Indexed: 06/11/2023]
Abstract
Peroxidase, a key enzyme causing enzymatic browning, and affected the potential values of fruit and vegetables. Phytic acid and NADH inhibited peroxidase in a competitive manner due to their reducing properties, and it's IC50 (1.18 ± 0.32) × 10-8, (8.02 ± 0.45) × 10-6 mol L-1, respectively. The interaction between phytic acid, NADH and peroxidase contributed to intrinsic fluorescence quenching and conformation alternation with a accuracy determination by multispectroscopic techniques (fluorescence spectra, FT-IR and CD spectra), respectively. Molecular docking simulation revealed that phytic acid, NADH interacted with His170, Ala34, Arg38, Ser73, Arg31, Lys174, Gln176, Asn175, Arg75; Gln176, Asn175, Phe221, Lys174, Gly173, Ser167, Phe172, Gly169, His170 in peroxidase, respectively and blocked substrates into catalytic reactions.
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Affiliation(s)
- Fengmao Li
- College of Life Science, Southwest University, Chongqing 400715, China; Chongqing Sweet Potato Engineering Research Center, Chongqing 400715, China
| | - Yunming Tang
- College of Life Science, Southwest University, Chongqing 400715, China; Chongqing Sweet Potato Engineering Research Center, Chongqing 400715, China.
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Li F, Fu Y, Yang H, Tang Y. The inhibition mechanism of luteolin on peroxidase based on multispectroscopic techniques. Int J Biol Macromol 2021; 166:1072-1081. [PMID: 33157143 DOI: 10.1016/j.ijbiomac.2020.10.262] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/30/2020] [Accepted: 10/31/2020] [Indexed: 01/11/2023]
Abstract
Luteolin, a plant-derived flavonoid, was found to exert effective inhibitory effect to peroxidase activity in a non-competitive manner with an IC50 of (6.62 ± 0.45) × 10-5 mol L-1. The interaction between luteolin and peroxidase induced the formation of a static complex with a binding constant (Ksv) of 7.31 × 103 L mol-1 s-1 driven by hydrogen bond and hydrophobic interaction. Further, the molecular interaction between luteolin and peroxidase resulted in intrinsic fluorescence quenching, structural and conformational alternations which were determined by multispectroscopic techniques combined with computational molecular docking. Molecular docking results revealed that luteolin bound to peroxidase and interacted with relevant amino acid residues in the hydrophobic pocket. These results will provide information for screening additional peroxidase inhibitors and provide evidence of luteolin's potential application in preservation and processing of fruit and vegetables and clinical disease remedy.
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Affiliation(s)
- Fengmao Li
- College of Life Science, Southwest University, Chongqing 400715, China; Engineering & Technology Research Center for Sweet potato of Chongqing, Chongqing 400715, China
| | - Yufan Fu
- College of Life Science, Southwest University, Chongqing 400715, China; Engineering & Technology Research Center for Sweet potato of Chongqing, Chongqing 400715, China
| | - Hao Yang
- College of Life Science, Southwest University, Chongqing 400715, China; Engineering & Technology Research Center for Sweet potato of Chongqing, Chongqing 400715, China
| | - Yunming Tang
- College of Life Science, Southwest University, Chongqing 400715, China; Engineering & Technology Research Center for Sweet potato of Chongqing, Chongqing 400715, China.
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15
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Structure analysis and inhibition mechanism of peroxidase in 'Zhongshu 1' sweet potato. Process Biochem 2021. [DOI: 10.1016/j.procbio.2020.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Li N, Hu X, Pan J, Zhang Y, Gong D, Zhang G. Insights into the mechanism of groove binding between 4-octylphenol and calf thymus DNA. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 238:118454. [PMID: 32413714 DOI: 10.1016/j.saa.2020.118454] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/04/2020] [Accepted: 05/05/2020] [Indexed: 06/11/2023]
Abstract
4-Octylphenol is an endocrine disruptor, belonging to environmental estrogens. It can be enriched in the human body through the food chain and may harm human health. Herein, we used a variety of spectroscopic techniques, molecular docking, and gel electrophoresis to study the interaction of 4-octylphenol and ctDNA. It was found that the mechanism of ctDNA quenching the endogenous fluorescence of 4-octylphenol was static quenching, and formed a complex. The negative enthalpy change (ΔH°), entropy change (ΔS°) and Gibbs free energy (ΔG°) have shown that 4-octylphenol and ctDNA spontaneously bind together under the action of hydrogen bonds and van der Waal's force. Viscosity, melting temperature and iodide quenching experiments showed that 4-octylphenol acted on the groove of ctDNA. Insignificant change in circular dichromism spectra further confirmed this binding mode. The binding sites and groups for 4-octylphenol and ctDNA interaction were identified by molecular docking. Gel electrophoresis found that 4-octylphenol at high concentrations caused DNA cleavage. Above findings may lay a theoretical foundation for understanding the toxicity mechanism of 4-octylphenol.
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Affiliation(s)
- Na Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Xing Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Junhui Pan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Ying Zhang
- Division of Accounting, Nanchang University, Nanchang 330047, China
| | - Deming Gong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; Department of Biomedicine, New Zealand Institute of Natural Medicine Research, Auckland 2104, New Zealand
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
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Hemalatha S, Dharmaraja J, Shobana S, Subbaraj P, Esakkidurai T, Raman N. Chemical and pharmacological aspects of novel hetero MLB complexes derived from NO2 type Schiff base and N2 type 1,10-phenanthroline ligands. JOURNAL OF SAUDI CHEMICAL SOCIETY 2020. [DOI: 10.1016/j.jscs.2019.09.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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18
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Zhao L, Zhao X, Ma Y, Zhang Y, Wang D. DNA Binding Characteristics and Protective Effects of Yellow Pigment from Freshly Cut Yam ( Dioscorea opposita). Molecules 2020; 25:E175. [PMID: 31906260 PMCID: PMC6983081 DOI: 10.3390/molecules25010175] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/05/2019] [Accepted: 12/09/2019] [Indexed: 02/07/2023] Open
Abstract
Yam yellow pigments (YP) are natural pigments formed during the storage of freshly cut yam (Dioscorea opposita) under certain conditions. The interaction of YP with calf thymus DNA (ctDNA) and its protective effect against DNA oxidative damage were investigated using multiple spectroscopic techniques, competitive binding experiments, viscosity measurements, and gel electrophoresis. Results showed that YP participated in intercalative binding with ctDNA. YP exhibited a protective effect against hydroxyl-induced DNA damage, which was attributed to the high hydroxyl radical scavenging activity of YP. Our findings improve our understanding of the mechanism of interaction between YP and ctDNA, and provide a theoretical basis for the application of YP in the food and drug industry.
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Affiliation(s)
- Lei Zhao
- Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Science, Beijing Key Laboratory of Agricultural Products of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and rural affairs, Beijing 100097, China; (L.Z.); (Y.M.)
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China
| | - Xiaoyan Zhao
- Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Science, Beijing Key Laboratory of Agricultural Products of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and rural affairs, Beijing 100097, China; (L.Z.); (Y.M.)
| | - Yue Ma
- Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Science, Beijing Key Laboratory of Agricultural Products of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and rural affairs, Beijing 100097, China; (L.Z.); (Y.M.)
| | - Yan Zhang
- Longda Food Group Company Limited, Shandong, Jinan 265231, China
| | - Dan Wang
- Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Science, Beijing Key Laboratory of Agricultural Products of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and rural affairs, Beijing 100097, China; (L.Z.); (Y.M.)
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19
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Bi S, Sun X, Li X, Zhao R, Shao D. Depicting the binding of furazolidone/furacilin with DNA by multiple spectroscopies, voltammetric as well as molecular docking. LUMINESCENCE 2019; 35:493-502. [DOI: 10.1002/bio.3754] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 10/12/2019] [Accepted: 11/25/2019] [Indexed: 12/29/2022]
Affiliation(s)
- Shuyun Bi
- College of ChemistryChangchun Normal University Changchun China
| | - Xiaoyue Sun
- College of ChemistryChangchun Normal University Changchun China
| | - Xu Li
- College of ChemistryChangchun Normal University Changchun China
| | - Rui Zhao
- College of ChemistryChangchun Normal University Changchun China
| | - Di Shao
- College of ChemistryChangchun Normal University Changchun China
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20
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Hossein Razavizadegan Jahromi S, Farhoosh R, Hemmateenejad B, Varidi M. Characterization of the binding of cyanidin-3-glucoside to bovine serum albumin and its stability in a beverage model system: A multispectroscopic and chemometrics study. Food Chem 2019; 311:126015. [PMID: 31864188 DOI: 10.1016/j.foodchem.2019.126015] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 11/30/2019] [Accepted: 12/03/2019] [Indexed: 12/16/2022]
Abstract
Anthocyanins as one of the main natural groups of food colorants undergo quick color fading, which can be diminished through protein association. The stabilization of cyanidin-3-glucoside (CYG) through binding to bovine serum albumin (BSA) was investigated at pH 3.0 using atomic force microscopy and differential scanning calorimetry along with UV-Vis absorption, steady-state fluorescence, circular dichroism, and three-dimensional emission spectral analyses merged with the multivariate curve resolution-alternative least square method. The stabilized CYG molecules were found at the site II of BSA with combined static and dynamic quenching mechanisms. Approximately 93% of the BSA binding sites were occupied in the BSA-CYG complex through hydrogen bonds and van der Waals forces with the binding constant and stoichiometry ratio of 1.88 × 105 M-1 and 1:13, respectively. The results also revealed that CYG molecules caused partial unfolding of the BSA structure, while it was not enough for significant alteration of denaturation temperature. The binding results also indicated that the reduction of H2O2-induced-CYG oxidation rate (34.78%) at pH 3.0 was mainly driven via the BSA-hemiketal association, although the colored species of CYG had a greater affinity towards BSA in the equilibrated system at pHs 1.0 and 5.0.
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Affiliation(s)
| | - Reza Farhoosh
- Ferdowsi University of Mashhad, Faculty of Agriculture, Department of Food Science and Technology, Mashhad 91775-1163, Iran.
| | - Bahram Hemmateenejad
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz, 7194684795, Iran.
| | - Mehdi Varidi
- Ferdowsi University of Mashhad, Faculty of Agriculture, Department of Food Science and Technology, Mashhad 91775-1163, Iran
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21
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Negri A, Ferrari M, Nodari R, Coppa E, Mastrantonio V, Zanzani S, Porretta D, Bandi C, Urbanelli S, Epis S. Gene silencing through RNAi and antisense Vivo-Morpholino increases the efficacy of pyrethroids on larvae of Anopheles stephensi. Malar J 2019; 18:294. [PMID: 31462239 PMCID: PMC6712854 DOI: 10.1186/s12936-019-2925-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 08/17/2019] [Indexed: 11/25/2022] Open
Abstract
Background Insecticides are still at the core of insect pest and vector control programmes. Several lines of evidence indicate that ABC transporters are involved in detoxification processes against insecticides, including permethrin and other pyrethroids. In particular, the ABCG4 gene, a member of the G subfamily, has consistently been shown to be up-regulated in response to insecticide treatments in the mosquito malaria vector Anopheles stephensi (both adults and larvae). Methods To verify the actual involvement of this transmembrane protein in the detoxification process of permethrin, bioassays on larvae of An. stephensi, combining the insecticide with a siRNA, specifically designed for the inhibition of ABCG4 gene expression were performed. Administration to larvae of the same siRNA, labeled with a fluorescent molecule, was effected to investigate the systemic distribution of the inhibitory RNA into the larval bodies. Based on siRNA results, similar experiments using antisense Vivo-Morpholinos (Vivo-MOs) were effected. These molecules, compared to siRNA, are expected to guarantee a higher stability in environmental conditions and in the insect gut, and present thus a higher potential for future in-field applications. Results Bioassays using two different concentrations of siRNA, associated with permethrin, led to an increase of larval mortality, compared with results with permethrin alone. These outcomes confirm that ABCG4 transporter plays a role in the detoxification process against the selected insecticide. Moreover, after fluorescent labelling, it was shown the systemic dissemination of siRNA in different body districts of An. stephensi larvae, which suggest a potential systemic effect of the molecule. At the same time, results of Vivo-MO experiments were congruent with those obtained using siRNA, thus confirming the potential of ABCG4 inhibition as a strategy to increase permethrin susceptibility in mosquitoes. For the first time, Vivo-MOs were administered in water to larvae, with evidence for a biological effect. Conclusions Targeting ABCG4 gene for silencing through both techniques resulted in an increased pyrethroid efficacy. These results open the way toward the possibility to exploit ABCG4 inhibition in the context of integrated programmes for the control An. stephensi mosquitoes and malaria transmission.
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Affiliation(s)
- Agata Negri
- Department of Environmental Biology, Sapienza University of Rome, Via dei Sardi 70, 00185, Rome, Italy.,Department of Biosciences and Pediatric Clinical Research Center "Romeo ed Enrica Invernizzi", University of Milan, Via Celoria 26, 20133, Milan, Italy.,Centro Interuniversitario di Ricerca sulla Malaria/Italian Malaria Network, Via del Giochetto, 06126, Perugia, Italy
| | - Marco Ferrari
- Department of Biosciences and Pediatric Clinical Research Center "Romeo ed Enrica Invernizzi", University of Milan, Via Celoria 26, 20133, Milan, Italy.,Texas Biomedical Research Institute, San Antonio, 7620 NW Loop 410, San Antonio, TX, 78227-5301, USA
| | - Riccardo Nodari
- Department of Biosciences and Pediatric Clinical Research Center "Romeo ed Enrica Invernizzi", University of Milan, Via Celoria 26, 20133, Milan, Italy.,Centro Interuniversitario di Ricerca sulla Malaria/Italian Malaria Network, Via del Giochetto, 06126, Perugia, Italy
| | - Edoardo Coppa
- Department of Biosciences and Pediatric Clinical Research Center "Romeo ed Enrica Invernizzi", University of Milan, Via Celoria 26, 20133, Milan, Italy
| | - Valentina Mastrantonio
- Department of Environmental Biology, Sapienza University of Rome, Via dei Sardi 70, 00185, Rome, Italy
| | - Sergio Zanzani
- Department of Veterinary Medicine-DIMEVET, Università degli Studi di Milano, Via Celoria, 10, 20133, Milan, Italy
| | - Daniele Porretta
- Department of Environmental Biology, Sapienza University of Rome, Via dei Sardi 70, 00185, Rome, Italy
| | - Claudio Bandi
- Department of Biosciences and Pediatric Clinical Research Center "Romeo ed Enrica Invernizzi", University of Milan, Via Celoria 26, 20133, Milan, Italy.,Centro Interuniversitario di Ricerca sulla Malaria/Italian Malaria Network, Via del Giochetto, 06126, Perugia, Italy
| | - Sandra Urbanelli
- Department of Environmental Biology, Sapienza University of Rome, Via dei Sardi 70, 00185, Rome, Italy
| | - Sara Epis
- Department of Biosciences and Pediatric Clinical Research Center "Romeo ed Enrica Invernizzi", University of Milan, Via Celoria 26, 20133, Milan, Italy. .,Centro Interuniversitario di Ricerca sulla Malaria/Italian Malaria Network, Via del Giochetto, 06126, Perugia, Italy.
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22
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Shahabadi N, Fili SM, Maghsudi M. Molecular docking and spectroscopic studies on the interaction of new fifth-generation antibacterial drug ceftobiprole with calf thymus DNA. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2019; 38:732-751. [PMID: 31084247 DOI: 10.1080/15257770.2019.1594892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The interaction of the cefobiprole drug with calf thymus DNA (ct-DNA) at physiological pH was investigated by UV-visible spectrophotometry, fluorescence measurement, dynamic viscosity measurements, circular dichroism spectroscopy and molecular modeling. The binding constant obtained of UV-visible was 4 × 104 L mol-1. Moreover, the results of circular dichroism (CD) and viscosity measurements displayed that the binding of the cefobiprole to ct-DNA can change the conformation of ct-DNA. Furthermore, thermodynamic parameters indicated that hydrogen bond and van der waals play main roles in the binding of cefobiprole to ct-DNA. Optimal results of docking, it can be concluded that ceftobiprole-DNA docked model is in approximate correlation with our experimental results.
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Affiliation(s)
- Nahid Shahabadi
- a Department of Inorganic Chemistry, Faculty of Chemistry, Razi University , Kermanshah , Iran.,b Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences , Kermanshah , Iran
| | - Soraya Moradi Fili
- a Department of Inorganic Chemistry, Faculty of Chemistry, Razi University , Kermanshah , Iran
| | - Maryam Maghsudi
- a Department of Inorganic Chemistry, Faculty of Chemistry, Razi University , Kermanshah , Iran
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23
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Thakor KP, Lunagariya MV, Bhatt BS, Patel MN. Fluorescence and Absorption Titrations of Bio-relevant Imidazole Based Organometallic Pd(II) Complexes with DNA: Synthesis, Characterization, DNA Interaction, Antimicrobial, Cytotoxic and Molecular Docking Studies. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01184-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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24
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Wang R, Hu X, Pan J, Zhang G, Gong D. Interaction of isoeugenol with calf thymus DNA and its protective effect on DNA oxidative damage. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.03.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Bipyrazole-based palladium(II) complexes as DNA intercalator and artificial metallonuclease. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-018-2316-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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26
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Thakor KP, Lunagariya MV, Bhatt BS, Patel MN. Fluorescence and absorption studies of DNA-Pd(II) complex interaction: Synthesis, spectroanalytical investigations and biological activities. LUMINESCENCE 2019; 34:113-124. [DOI: 10.1002/bio.3587] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 11/26/2018] [Accepted: 11/30/2018] [Indexed: 01/17/2023]
Affiliation(s)
- Khyati P. Thakor
- Department of Chemistry; Sardar Patel University; Vallabh Vidyanagar Gujarat India
| | - Miral V. Lunagariya
- Department of Chemistry; Sardar Patel University; Vallabh Vidyanagar Gujarat India
| | - Bhupesh S. Bhatt
- Department of Chemistry; Sardar Patel University; Vallabh Vidyanagar Gujarat India
| | - Mohan N. Patel
- Department of Chemistry; Sardar Patel University; Vallabh Vidyanagar Gujarat India
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27
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Shi JH, Lou YY, Zhou KL, Pan DQ. Exploration of intermolecular interaction of calf thymus DNA with sulfosulfuron using multi-spectroscopic and molecular docking techniques. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 204:209-216. [PMID: 29935392 DOI: 10.1016/j.saa.2018.06.054] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 05/21/2018] [Accepted: 06/14/2018] [Indexed: 06/08/2023]
Abstract
As a sulfonylurea herbicide, sulfosulfuron is extensively applied in controlling broad-leaves and weeds in agriculture. It may cause a potential risk for human and herbivores health due to its widely application and residue in crops and fruits. The study of the binding characteristics of calf thymus DNA (ct-DNA) with sulfosulfuron was performed through a series of spectroscopic techniques and computer simulation. The experimental results showed sulfosulfuron interacted with ct-DNA through the groove binding. The negative values of thermodynamic parameter (ΔH0, ΔS0 and ΔG0) revealed that the reaction of sulfosulfuron with DNA could proceed spontaneously, and the hydrogen bonding and van der Waals forces were essential to sulfosulfuron-ct-DNA binding, which was further verified by molecular docking study. Meanwhile, the electrostatic and hydrophobic interactions also played a supporting function for the interaction of sulfosulfuron with ct-DNA. The circular dichroism (CD) results exhibited a minor change in the secondary structure of ct-DNA during interaction process. Moreover, the conformation of sulfosulfuron had the obvious change after binding to DNA, which suggested that the flexibility of sulfosulfuron contributed to stabilizing the sulfosulfuron-ct-DNA complex.
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Affiliation(s)
- Jie-Hua Shi
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China.
| | - Yan-Yue Lou
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
| | - Kai-Li Zhou
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
| | - Dong-Qi Pan
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
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28
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Thakor KP, Lunagariya MV, Bhatt BS, Patel MN. Synthesis, characterization and biological applications of some substituted pyrazoline based palladium (II) compounds. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4523] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Khyati P. Thakor
- Department of Chemistry; Sardar Patel University; Vallabh Vidyanagar 388120 Gujarat India
| | - Miral V. Lunagariya
- Department of Chemistry; Sardar Patel University; Vallabh Vidyanagar 388120 Gujarat India
| | - Bhupesh S. Bhatt
- Department of Chemistry; Sardar Patel University; Vallabh Vidyanagar 388120 Gujarat India
| | - Mohan N. Patel
- Department of Chemistry; Sardar Patel University; Vallabh Vidyanagar 388120 Gujarat India
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29
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Ding H, Wu X, Pan J, Hu X, Gong D, Zhang G. New Insights into the Inhibition Mechanism of Betulinic Acid on α-Glucosidase. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:7065-7075. [PMID: 29902001 DOI: 10.1021/acs.jafc.8b02992] [Citation(s) in RCA: 117] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Betulinic acid (BA), an important pentacyclic triterpene widely distributed in many foods, possesses high antidiabetic activity. In this study, BA was found to exhibit stronger inhibition of α-glucosidase than acarbose with an IC50 value of (1.06 ± 0.02) × 10-5 mol L-1 in a mixed-type manner. BA bound with α-glucosidase to form a BA-α-glucosidase complex, resulting in a more compact structure of the enzyme. The obtained concentrations and spectra profiles of the components resolved by the multivariate-curve resolution-alternating least-squares confirmed the formation of the BA-α-glucosidase complex. Molecular docking showed that BA tightly bound to the active cavity of α-glucosidase, which might hinder the entrance of the substrate leading to a decline in enzyme activity. The chemical modification of α-glucosidase verified the results of the computer simulation that the order of importance of the four amino acid residues in the binding process was His > Tyr > Lys > Arg.
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Affiliation(s)
- Huafang Ding
- State Key Laboratory of Food Science and Technology , Nanchang University , Nanchang 330047 , China
| | - Xiaqing Wu
- State Key Laboratory of Food Science and Technology , Nanchang University , Nanchang 330047 , China
| | - Junhui Pan
- State Key Laboratory of Food Science and Technology , Nanchang University , Nanchang 330047 , China
| | - Xing Hu
- State Key Laboratory of Food Science and Technology , Nanchang University , Nanchang 330047 , China
| | - Deming Gong
- State Key Laboratory of Food Science and Technology , Nanchang University , Nanchang 330047 , China
- New Zealand Institute of Natural Medicine Research , 8 Ha Crescent , Auckland 2104 , New Zealand
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology , Nanchang University , Nanchang 330047 , China
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30
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Mechanistic insights into the inhibition of quercetin on xanthine oxidase. Int J Biol Macromol 2018; 112:405-412. [DOI: 10.1016/j.ijbiomac.2018.01.190] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 01/26/2018] [Accepted: 01/29/2018] [Indexed: 11/21/2022]
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31
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Ahmad A, Ahmad M. Deciphering the mechanism of interaction of edifenphos with calf thymus DNA. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 188:244-251. [PMID: 28732283 DOI: 10.1016/j.saa.2017.07.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 07/10/2017] [Accepted: 07/12/2017] [Indexed: 06/07/2023]
Abstract
Edifenphos is an important organophosphate pesticide with many antifungal and anti-insecticidal properties but it may cause potential hazards to human health. In this work, we have tried to explore the binding mode of action and mechanism of edifenphos to calf thymus DNA (CT-DNA). Several experiments such as ultraviolet-visible absorption spectra and emission spectroscopy showed complex formation between edifenphos and CT-DNA and low binding constant values supporting groove binding mode. These results were further confirmed by circular dichroism (CD), CT-DNA melting studies, viscosity measurements, density functional theory and molecular docking. CD study suggests that edifenphos does not alter native structure of CT-DNA. Isothermal calorimetry reveals that binding of edifenphos with CT-DNA is enthalpy driven process. Competitive binding assay and effect of ionic strength showed that edifenphos binds to CT-DNA via groove binding manner. Hence, edifenphos is a minor groove binder preferably interacting with A-T regions with docking score -6.84kJ/mol.
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Affiliation(s)
- Ajaz Ahmad
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India
| | - Masood Ahmad
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India.
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32
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Shi JH, Lou YY, Zhou KL, Pan DQ. Probing the behavior of calf thymus DNA upon binding to a carboxamide fungicide boscalid: insights from spectroscopic and molecular docking approaches. J Biomol Struct Dyn 2017; 36:2738-2745. [DOI: 10.1080/07391102.2017.1365012] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jie-Hua Shi
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
| | - Yan-Yue Lou
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
| | - Kai-Li Zhou
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
| | - Dong-Qi Pan
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
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33
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Li S, Pan J, Zhang G, Xu J, Gong D. Characterization of the groove binding between di-(2-ethylhexyl) phthalate and calf thymus DNA. Int J Biol Macromol 2017; 101:736-746. [DOI: 10.1016/j.ijbiomac.2017.03.136] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 03/21/2017] [Accepted: 03/24/2017] [Indexed: 01/03/2023]
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34
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Ma L, Wang J, Zhang Y. Probing the Characterization of the Interaction of Aflatoxins B1 and G1 with Calf Thymus DNA In Vitro. Toxins (Basel) 2017; 9:E209. [PMID: 28671585 PMCID: PMC5535156 DOI: 10.3390/toxins9070209] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 06/20/2017] [Accepted: 06/28/2017] [Indexed: 11/16/2022] Open
Abstract
The binding characterization of aflatoxins with calf thymus DNA (ctDNA) under physiological conditions was investigated. Multispectroscopic techniques, ctDNA melting, viscosity measurements, and molecular docking techniques were employed to elucidate the binding mechanism of the aflatoxins with DNA. The fluorescence results indicated that both aflatoxin B1 (AFB1) and aflatoxin G1 (AFG1) bound to the ctDNA, forming complexes through hydrogen bonding. The binding constants of AFB1 and AFG1 with ctDNA reached up to 10³ L·mol-1 and 10⁴ L·mol-1, respectively, and AFG1 exhibited a higher binding propensity than that of AFB1. Furthermore, both AFB1 and AFG1 bound to the ctDNA through groove binding, as evidenced by the results of the spectroscopic, iodide quenching effect, viscosity, and ctDNA melting measurements. Changes in the circular dichroism signal manifested that both AFB1 and AFG1 induced an increase in the right-handed helicity, but only minimally influenced the base stacking of the DNA. A molecular docking study of the aflatoxin's binding with the DNA revealed a groove binding mode, which was driven mainly by hydrogen bonding. This study of aflatoxin-ctDNA interaction may provide novel insights into the toxicological effect of the mycotoxins.
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Affiliation(s)
- Liang Ma
- College of Food Science, Southwest University, Beibei District, Chongqing 400715, China.
| | - Jiaman Wang
- College of Food Science, Southwest University, Beibei District, Chongqing 400715, China.
| | - Yuhao Zhang
- College of Food Science, Southwest University, Beibei District, Chongqing 400715, China.
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Gholivand MB, Peyman H, Gholivand K, Roshanfekr H, Taherpour AA, Yaghoubi R. Experimental and Computational Evidence on the Interaction of Cycloalkyl α-Aminobisphosphonates with Calf Thymus DNA. DNA Cell Biol 2017; 36:541-551. [PMID: 28525298 DOI: 10.1089/dna.2016.3624] [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: 11/12/2022] Open
Abstract
Fluorescence spectroscopy, ultraviolet-visible absorption spectroscopy, circular dichroism spectroscopy, viscometry, cyclic voltammetry, and differential pulse voltammetry were applied to investigate the competitive interaction of DNA with the three new cycloalkyl α-aminobisphosphonates (D1-D3) and spectroscopic probe, neutral red dye, and Hoechst (HO), in a Tris-hydrogen chloride buffer (pH 7.4). The spectroscopic and voltammetric studies showed that the groove binding mode of interaction is predominant in the solution containing DNA and α-aminobisphosphonates. Furthermore, the results indicated that α-aminobisphosphonate with the lengthy N alkyl chains and larger heterocyclic ring size had a stronger interaction. The principal component analysis and theoretical quantum mechanical and molecular mechanics (QM-DFT B3LYP/6-31+G* and MM-SYBYL) methods were also applied to determine the number of chemical components presented in complexation equilibrium and identify the structure complexes of DNA with the three new cycloalkyl α-aminobisphosphonates (D1-D3), respectively.
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Affiliation(s)
- Mohammad Bagher Gholivand
- 1 Faculty of Chemistry, Sensor and Biosensor Research Center (SBRC) and Nanoscience and Nanotechnology Research Center (NNRC), Razi University , Kermanshah, Iran
| | - Hossein Peyman
- 2 Department of Chemistry, Ilam Branch, Islamic Azad University , Ilam, Iran
| | - Khodayar Gholivand
- 3 Department of Chemistry, Faculty of Science, Tarbiat Modares University , Tehran, Iran
| | - Hamideh Roshanfekr
- 2 Department of Chemistry, Ilam Branch, Islamic Azad University , Ilam, Iran
| | - Avat Arman Taherpour
- 4 Department of Organic Chemistry, Faculty of Chemistry, Razi University , Kermanshah, Iran .,5 Medical Biology Research Center, Kermanshah University of Medical Sciences , Kermanshah, Iran
| | - Rouhollah Yaghoubi
- 3 Department of Chemistry, Faculty of Science, Tarbiat Modares University , Tehran, Iran
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36
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Nair MS, D'Mello S, Pant R, Poluri KM. Binding of resveratrol to the minor groove of DNA sequences with AATT and TTAA segments induces differential stability. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 170:217-224. [DOI: 10.1016/j.jphotobiol.2017.04.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 04/06/2017] [Accepted: 04/16/2017] [Indexed: 12/21/2022]
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37
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Liu H, Gopala L, Avula SR, Jeyakkumar P, Peng X, Zhou C, Geng R. Chalcone-Benzotriazole Conjugates as New Potential Antimicrobial Agents: Design, Synthesis, Biological Evaluation and Synergism with Clinical Drugs. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600639] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hanbo Liu
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715 China
| | - Lavanya Gopala
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715 China
| | - Srinivasa Rao Avula
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715 China
| | - Ponmani Jeyakkumar
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715 China
| | - Xinmei Peng
- School of Chemistry and Chemical Engineering; Qiannan Normal University for Nationalities; Duyun Guizhou 558000 China
| | - Chenghe Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715 China
| | - Rongxia Geng
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715 China
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38
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Liu Y, Zhang G, Zeng N, Hu S. Interaction between 8-methoxypsoralen and trypsin: Monitoring by spectroscopic, chemometrics and molecular docking approaches. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 173:188-195. [PMID: 27653277 DOI: 10.1016/j.saa.2016.09.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 08/28/2016] [Accepted: 09/14/2016] [Indexed: 06/06/2023]
Abstract
8-Methoxypsoralen (8-MOP) is a naturally occurring furanocoumarin with various biological activities. However, there is little information on the binding mechanism of 8-MOP with trypsin. Here, the interaction between 8-MOP and trypsin in vitro was determined by multi-spectroscopic methods combined with the multivariate curve resolution-alternating least squares (MCR-ALS) chemometrics approach. An expanded UV-vis spectral data matrix was analysed by MCR-ALS, the concentration profiles and pure spectra for the three reaction species (trypsin, 8-MOP and 8-MOP-trypsin) were obtained to monitor the interaction between 8-MOP and trypsin. The fluorescence data suggested that a static type of quenching mechanism occurred in the binding of 8-MOP to trypsin. Hydrophobic interaction dominated the formation of the 8-MOP-trypsin complex on account of the positive enthalpy and entropy changes, and trypsin had one high affinity binding site for 8-MOP with a binding constant of 3.81×104Lmol-1 at 298K. Analysis of three dimensional fluorescence, UV-vis absorption and circular dichroism spectra indicated that the addition of 8-MOP induced the rearrangement of the polypeptides carbonyl hydrogen-bonding network and the conformational changes in trypsin. The molecular docking predicted that 8-MOP interacted with the catalytic residues His57, Asp102 and Ser195 in trypsin. The binding patterns and trypsin conformational changes may result in the inhibition of trypsin activity. This study has provided insights into the binding mechanism of 8-MOP with trypsin.
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Affiliation(s)
- Yingying Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
| | - Ni Zeng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Song Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
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39
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Xia K, Zhang G, Gong D. Deciphering the intercalative binding modes of benzoyl peroxide with calf thymus DNA. LUMINESCENCE 2017; 32:988-998. [PMID: 28116811 DOI: 10.1002/bio.3281] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 12/13/2016] [Accepted: 12/19/2016] [Indexed: 12/23/2022]
Abstract
The binding of benzoyl peroxide (BPO), a flour brightener, with calf thymus DNA (ctDNA) was predicted by molecular simulation, and this were confirmed using multi-spectroscopic techniques and a chemometrics algorithm. The molecular docking result showed that BPO could insert into the base pairs of ctDNA, and the adenine bases were the preferential binding sites which were validated by the analysis of Fourier transform infrared spectra. The mode of binding of BPO with ctDNA was an intercalation as supported by the results from ctDNA melting and viscosity measurements, iodide quenching effects and competitive binding investigations. The circular dichroism and DNA cleavage assays indicated that BPO induced a conformational change from B-like DNA structure towards to A-like form, but did not lead to significant damage in the DNA. The complexation was driven mainly by hydrogen bonds and hydrophobic interactions. Moreover, the ultraviolet-visible (UV-vis) spectroscopic data matrix was resolved by a multivariate curve resolution-alternating least-squares algorithm. The equilibrium concentration profiles for the components (BPO, ctDNA and BPO-ctDNA complex) were extracted from the highly overlapping composite response to quantitatively monitor the BPO-ctDNA interaction. This study has provided insights into the mechanism of the interaction of BPO with ctDNA and potential hazards of the food additive.
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Affiliation(s)
- Kaixin Xia
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Deming Gong
- School of Biological Sciences, The University of Auckland, Auckland, New Zealand
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40
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Zhang C, Zhang G, Liao Y, Gong D. Myricetin inhibits the generation of superoxide anion by reduced form of xanthine oxidase. Food Chem 2016; 221:1569-1577. [PMID: 27979130 DOI: 10.1016/j.foodchem.2016.10.136] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 09/19/2016] [Accepted: 10/28/2016] [Indexed: 02/07/2023]
Abstract
Myricetin, a plant-derived flavonol, was found to inhibit the formation of uric acid in a mixed-type manner with IC50 value of (8.66±0.03)×10-6molL-1 and more potently inhibit the generation of superoxide anion (O2-) catalysed by xanthine oxidase (XOD) with IC50 value of (4.55±0.02)×10-6molL-1. Inhibiting O2- generation by myricetin may be attributed to the reduced form of XOD with a substantially higher reduction potential for FADH/FADH2 couple. Moreover, molecular docking verified that myricetin bound to the site around isoalloxazine ring in the flavin adenine dinucleotide (FAD) domain to block the diffusion of O2- out of the FAD site, resulting in the transfer of another electron from FADH2 to O2- to form hydrogen peroxide. This study has provided new insight into the role of myricetin in inhibiting XOD catalysis, which may be beneficial to improve myricetin's potential application in functional foods.
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Affiliation(s)
- Cen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
| | - Yijing Liao
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Deming Gong
- School of Biological Sciences, The University of Auckland, Auckland 1142, New Zealand
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41
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Singla P, Luxami V, Paul K. Pyrrolo[2,3- b]pyridine Derivatives: Synthesis and Preliminary Evaluation of their Calf Thymus DNA Binding Properties. ChemistrySelect 2016. [DOI: 10.1002/slct.201600801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Prinka Singla
- School of Chemistry and Biochemistry; Thapar University; Patiala- 147001 India
| | - Vijay Luxami
- School of Chemistry and Biochemistry; Thapar University; Patiala- 147001 India
| | - Kamaldeep Paul
- School of Chemistry and Biochemistry; Thapar University; Patiala- 147001 India
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42
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Shahbazy M, Pakravan P, Kompany-Zareh M. Multivariate spectrochemical analysis of interactions of three common Isatin derivatives to calf thymus DNA in vitro. J Biomol Struct Dyn 2016; 35:2539-2556. [DOI: 10.1080/07391102.2016.1225604] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Mohammad Shahbazy
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Parvaneh Pakravan
- Department of Chemistry, Zanjan Branch, Islamic Azad University, Zanjan, Iran
| | - Mohsen Kompany-Zareh
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
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43
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Zhao P, Wei Q, Dong J, Ding F, Li J, Li L. Synthesis, structure and spectroscopic studies on DNA binding, BSA interaction of a nickel(II) complex containing l–methionine Schiff base and 1,10-phenanthroline. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1206657] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Peiran Zhao
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, PR China
| | - Qiang Wei
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, PR China
| | - Jianfang Dong
- Department of Material Science, Shandong Polytechnic Technician College, Liaocheng, PR China
| | - Feifei Ding
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, PR China
| | - Jinghong Li
- College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, PR China
| | - Lianzhi Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, PR China
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44
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Singla P, Luxami V, Paul K. Triazine–benzimidazole conjugates: synthesis, spectroscopic and molecular modelling studies for interaction with calf thymus DNA. RSC Adv 2016. [DOI: 10.1039/c5ra24001h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Triazine–benzimidazole analogues with different substitutions of primary and secondary amines as well as aryl groups were synthesized and studied their interactions with calf thymus DNA.
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Affiliation(s)
- Prinka Singla
- School of Chemistry and Biochemistry
- Thapar University
- Patiala-147004
- India
| | - Vijay Luxami
- School of Chemistry and Biochemistry
- Thapar University
- Patiala-147004
- India
| | - Kamaldeep Paul
- School of Chemistry and Biochemistry
- Thapar University
- Patiala-147004
- India
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45
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Ghosh S, Al Masum A, Ganguly A, Alam MA, Islam MM, Guchhait N. Interaction of a synthesized pyrene based fluorescent probe with CT-DNA: spectroscopic, thermodynamic and molecular modeling studies. RSC Adv 2016. [DOI: 10.1039/c6ra20267e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The present study demonstrates the synthesis of a new pyrene based water soluble fluorescent probe and its interaction with Calf-thymus DNA.
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Affiliation(s)
- Soumen Ghosh
- Department of Chemistry
- University of Calcutta
- Kolkata 700 009
- India
| | | | | | | | | | - Nikhil Guchhait
- Department of Chemistry
- University of Calcutta
- Kolkata 700 009
- India
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46
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Huang YM, Zheng SJ, Yan J, Yang HQ, Wu D, Wang Q, Li H. Investigation on the interaction of letrozole with herring sperm DNA through spectroscopic and modeling methods. LUMINESCENCE 2015; 31:1077-84. [DOI: 10.1002/bio.3074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 11/11/2015] [Accepted: 11/12/2015] [Indexed: 01/18/2023]
Affiliation(s)
- Yan-Mei Huang
- College of Chemical Engineering; Sichuan University; Chengdu People's Republic of China
| | - Shou-Jun Zheng
- College of Chemical Engineering; Sichuan University; Chengdu People's Republic of China
| | - Jin Yan
- College of Chemical Engineering; Sichuan University; Chengdu People's Republic of China
| | - Hong-Qin Yang
- College of Chemical Engineering; Sichuan University; Chengdu People's Republic of China
| | - Di Wu
- College of Chemical Engineering; Sichuan University; Chengdu People's Republic of China
| | - Qing Wang
- College of Chemical Engineering; Sichuan University; Chengdu People's Republic of China
| | - Hui Li
- College of Chemical Engineering; Sichuan University; Chengdu People's Republic of China
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47
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Pan J, Wang L, Zhang G, Gong D. Intercalation of 2-butyl-4-methylphenol to G–C rich region of DNA and the role of hydroxypropyl-β-cyclodextrin. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 151:125-34. [DOI: 10.1016/j.jphotobiol.2015.07.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 07/23/2015] [Accepted: 07/28/2015] [Indexed: 11/15/2022]
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48
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Shahabadi N, Moradi Fili S, Shahlaei M. Synthesis, characterization and comparative DNA interaction studies of new copper(II) and nickel(II) complexes containing mesalamine drug using molecular modeling and multispectroscopic methods. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1078897] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Nahid Shahabadi
- Faculty of Chemistry, Department of Inorganic Chemistry, Razi University, Kermanshah, Iran
- Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Soraya Moradi Fili
- Faculty of Chemistry, Department of Inorganic Chemistry, Razi University, Kermanshah, Iran
| | - Mohsen Shahlaei
- Faculty of Pharmacy, Department of Medicinal Chemistry, Medical Sciences University, Kermanshah, Iran
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49
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Shahabadi N, Amiri S. Spectroscopic and computational studies on the interaction of DNA with pregabalin drug. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 138:840-845. [PMID: 25467655 DOI: 10.1016/j.saa.2014.10.104] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 10/14/2014] [Accepted: 10/23/2014] [Indexed: 06/04/2023]
Abstract
The interaction of the drug pregabalin (S-3-(aminomethyl)-5-methylhexanoic acid) with CT-DNA was studied by using fluorescence spectroscopy, UV-Vis, CD, molecular docking study and viscometery. The fluorescence and UV absorption spectroscopy indicated that the drug interacted with CT-DNA in a groove binding mode. The binding constant and the number of binding sites were 5.6×10(4)Lmol(-1) and 0.96, respectively. The fluorimetric studies showed that the reaction between the drug and CT-DNA is exothermic (ΔH=33.11kJmol(-1); ΔS=48.84Jmol(-1)K(-1)). Furthermore, the drug does not induce any changes in DNA viscosity. Circular dichroism spectroscopy (CD) was employed to measure the conformational changes of CT-DNA in the presence of the drug, which verified the groove binding mode. The molecular modeling results illustrated that the drug binds to groove of DNA by relative binding energy of docked structure -21.9kJmol(-1).
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Affiliation(s)
- Nahid Shahabadi
- Department of Chemistry, Faculty of Science, Razi University, Kermanshah, Iran.
| | - Sara Amiri
- Department of Chemistry, Faculty of Science, Razi University, Kermanshah, Iran
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50
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Tao M, Zhang G, Xiong C, Pan J. Characterization of the interaction between resmethrin and calf thymus DNA in vitro. NEW J CHEM 2015. [DOI: 10.1039/c4nj02321h] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Resmethrin preferentially binds to the G–C rich region of the ctDNA groove, and the UV-vis spectral matrix is decomposed by MCR-ALS.
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Affiliation(s)
- Mo Tao
- State Key Laboratory of Food Science and Technology
- Nanchang University
- Nanchang 330047
- China
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology
- Nanchang University
- Nanchang 330047
- China
| | - Chunhong Xiong
- State Key Laboratory of Food Science and Technology
- Nanchang University
- Nanchang 330047
- China
| | - Junhui Pan
- State Key Laboratory of Food Science and Technology
- Nanchang University
- Nanchang 330047
- China
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