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Duraisamy K, Venkatesan S, Sivaji I, Kosuru RY, Palaniyappan P, Sureshkumar M, Dhakshinamurthy D. Green synthesis of zinc ferrite nanoparticles from Nyctanthes arbor-tristis: unveiling larvicidal potential, protein binding affinity and photocatalytic activities. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-34733-5. [PMID: 39172337 DOI: 10.1007/s11356-024-34733-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Accepted: 08/13/2024] [Indexed: 08/23/2024]
Abstract
Environmental pollution, being a major concern worldwide, needs a unique and ecofriendly solution. To answer this, researchers are aiming in utilizing plant extracts for the synthesis of nanoparticles. These NPs synthesized using plant extracts provide a potential, environmentally benign technique for biological and photocatalytic applications. Especially, plant leaf extracts have been safe, inexpensive, and eco-friendly materials for the production of nanoparticles in a greener way. In this work, zinc ferrite nanoparticles (ZnFe2O4 NPs) were prepared using Nyctanthes arbor-tristis leaf extract by hydrothermal method, and its biological and photocatalytic properties were assessed. The synthesized ZnFe2O4 NPs were characterized using powder X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier-transform infrared spectroscopy (FT-IR). X-ray diffraction confirmed the arrangement of the fcc crystal structure of the nanoparticles and that some organic substances were encapsulated within the zinc ferrite. According to the SEM analysis, the resulting nanoparticles got agglomerated and spherical in shape. The ZnFe2O4 nanoparticles are in their pure form, and all of their elemental compositions were shown by the energy-dispersive X-ray analysis (EDAX) spectrum. The FTIR results revealed that the produced nanoparticles contained distinctive functional groups. Fluorescence spectroscopy was used to examine the binding affinities between bovine serum albumin (BSA) and ZnFe2O4 nanoparticles in terms of protein binding, stability, and conformation. The interaction between BSA and ZnFe2O4 NPs was examined using steady-state and time-resolved fluorescence measurements, and it was evident that static quenching occurred. The ability of ZnFe2O4 nanoparticles to kill Culex quinquefasciatus (C. quinquefasciatus) larvae was evaluated. The synthesized NPs demonstrated a noteworthy toxic effect against the fourth instar larvae of C. quinquefasciatus with LC50 values of 43.529 µg/mL and LC90 values of 276.867 µg/mL. This study revealed the toxicity of green synthesized ZnFe2O4 NPs on mosquito larvae, proving that these NPs are good and effective larvicides. Furthermore, the ZnFe2O4 NPs were utilized for dye degradation of methylene blue under visible light treatment and achieved 99.5% degradation.
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Affiliation(s)
- Kavitha Duraisamy
- Department of Biotechnology, Muthayammal College of Arts and Science (a Unit of Vanetra Group), Rasipuram, Namakkal, Tamil Nadu, India
| | - Srinivasan Venkatesan
- Department of Chemistry, Vel Tech Rangarajan Dr. Sagunthala R & D Institute of Science and Technology, Avadi, Chennai, 600 062, Tamil Nadu, India.
| | - Ilakkia Sivaji
- Department of Biotechnology, SRM Arts and Science College, Kattankulathur, Chengalpattu, 603 203, Tamil Nadu, India
| | - Rekha Yamini Kosuru
- Department of Biotechnology, SRM Arts and Science College, Kattankulathur, Chengalpattu, 603 203, Tamil Nadu, India
| | - Prithika Palaniyappan
- Department of Biotechnology, Muthayammal College of Arts and Science (a Unit of Vanetra Group), Rasipuram, Namakkal, Tamil Nadu, India
| | - Muthusamy Sureshkumar
- Department of Zoology, Thiruvalluvar Government Arts College, Rasipuram, Namakkal, Tamil Nadu, India
| | - Divya Dhakshinamurthy
- Department of Chemistry, Vel Tech Rangarajan Dr. Sagunthala R & D Institute of Science and Technology, Avadi, Chennai, 600 062, Tamil Nadu, India
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Zheng SJ, Zheng N, Zhang ML, Wu FF, Yang SD, Cheng XH, Bao HY, Zhang R. Probing the binding mechanism of the verbascoside and human serum albumin by fluorescence spectroscopy and molecular docking approach. MONATSHEFTE FUR CHEMIE 2022. [DOI: 10.1007/s00706-022-03002-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cheng S, Zhang H, Li L, Yu T, Wang Y, Tan D, Zhang X. Harvesting of Microcystis flos-aquae using dissolved air flotation: The inhibitory effect of carboxyl groups in uronic acid-containing carbohydrates. CHEMOSPHERE 2022; 300:134466. [PMID: 35390405 DOI: 10.1016/j.chemosphere.2022.134466] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 03/13/2022] [Accepted: 03/26/2022] [Indexed: 06/14/2023]
Abstract
Harvesting algal biomass reduces nutrient loading in eutrophicated lakes and the protein-rich microalgal biomass could be recycled as feedstocks of feed and fertilizer. Due to the complexity of algogenic organic matter (AOM), the key components and functional groups in AOM that inhibit coagulation-based microalgal harvesting have not been disclosed thus far. This study quantitatively analysed the responsive compositions and functional groups of AOM involved in the dissolved air flotation (DAF) harvesting of M. flos-aquae with 1 × 109 cell L-1 density at coagulation pH 6.2. The results showed that harvesting efficiency dropped drastically from 95.5 ± 0.7% to 43 ± 0.7% in the presence of AOM (26.77 mg L-1) at the coagulant dosage of 0.75 mg L-1 and further deteriorated with increasing AOM concentration. Carbohydrates contributed 81% of the total composition of substances involved in the DAF, while the contribution of protein and humic-like substances were only 18% and 1%, respectively. Stoichiometric analysis of functional groups in carbohydrates, proteins, and humic-like substances using model components revealed that carboxyl groups in uronic acid-containing carbohydrates accounted for 76% of the total reduction in carboxyl groups, which was much higher than that in proteins (23%) and humic-like substances (1%), indicating that carboxyl groups in uronic acids containing carbohydrates were the major inhibitors. A conceptual model of charge competition was proposed to explain the inhibition mechanism of carboxyl functional groups in uronic acid-containing carbohydrates on microalgal DAF. Strategies such as preventing carboxyl deprotonation by pH reduction and employment of sweeping/bridging polymeric coagulants/flocculants were proposed for the to reduce the inhibitory effect of carboxyl functional groups.
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Affiliation(s)
- Shaozhe Cheng
- Institute of Hydrobiology, Chinese Academy of Sciences, South Donghu Road, Wuchang District, Wuhan, 430072, Hubei Province, China; University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing, 100049, China
| | - Haiyang Zhang
- Institute of Hydrobiology, Chinese Academy of Sciences, South Donghu Road, Wuchang District, Wuhan, 430072, Hubei Province, China
| | - Lili Li
- Institute of Hydrobiology, Chinese Academy of Sciences, South Donghu Road, Wuchang District, Wuhan, 430072, Hubei Province, China; University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Shijingshan District, Beijing, 100049, China
| | - Tongbo Yu
- Institute of Hydrobiology, Chinese Academy of Sciences, South Donghu Road, Wuchang District, Wuhan, 430072, Hubei Province, China
| | - Yongpeng Wang
- Institute of Hydrobiology, Chinese Academy of Sciences, South Donghu Road, Wuchang District, Wuhan, 430072, Hubei Province, China
| | - Daoyong Tan
- Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Xuezhi Zhang
- Institute of Hydrobiology, Chinese Academy of Sciences, South Donghu Road, Wuchang District, Wuhan, 430072, Hubei Province, China.
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Guler S, Kayali HA, Sadan EO, Sen B, Subasi E. Half-Sandwich Arene Ruthenium(II) Thiosemicarbazone Complexes: Evaluation of Anticancer Effect on Primary and Metastatic Ovarian Cancer Cell Lines. Front Pharmacol 2022; 13:882756. [PMID: 35620291 PMCID: PMC9128756 DOI: 10.3389/fphar.2022.882756] [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: 02/24/2022] [Accepted: 04/19/2022] [Indexed: 11/13/2022] Open
Abstract
In this study, we describe the synthesis, characterization and antiproliferative activity of three organo-ruthenium(II) half-sandwich complexes [RuCl(η6-p-cym)(N,S-L)]Cl (I, II, and III). To form these complexes, three thiosemicarbazone ligands (TSCs) were synthesized; L = 5-nitro-2-carboxyaldehyde-thiophen-N-methyl-thiosemicarbazone, (L1); 2-acetyl-5-bromo-thiophen-N-methyl-thiosemicarbazone, (L2) and 2-acetyl-5-bromo-thiophen-N,N-dimethyl-thiosemicarbazone, (L3). The isolated compounds were analyzed using spectroscopic techniques such as elemental analysis, conductance measurements, FT-IR, 1H NMR spectroscopy, MALDI-TOF mass spectrometry, and single-crystal XRD. Our results demonstrated that the synthesized thiosemicarbazone ligands (TSCs) are bound to the metal ion as a bidentate ligand that coordinates through the thiocarbonyl sulfur and azomethine nitrogen atoms in all complexes (I, II, and III). The X-ray crystal structures of L1 and L2 revealed that both compounds are crystallized in the triclinic crystal system with space group P-1. The biological potency of newly synthesized TSC ligands (L1, L2, and L3) and their corresponding ruthenium complexes (I, II, and III) were investigated on human primary ovarian (A2780) and human metastatic ovarian (OVCAR-3) cell lines. To get detailed information respecting antitumor properties, cytotoxicity, DNA/BSA binding affinity, cellular uptake, DNA binding competition, and trans-epithelial resistance measurement assays were performed. Our results demonstrate that newly synthesized ruthenium(II) complexes possess potential biological activity. Moreover, we observe that the ruthenium complexes reported here show anticancer activity on primary (A2780) and metastatic (OVCAR-3) ovarian cancer cells.
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Affiliation(s)
- Seminay Guler
- Izmir Biomedicine and Genome Center, Izmir, Turkey
- Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir, Turkey
| | - Hulya Ayar Kayali
- Izmir Biomedicine and Genome Center, Izmir, Turkey
- Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir, Turkey
- Department of Chemistry, Division of Biochemistry, Faculty of Science, Dokuz Eylul University, İzmir, Turkey
| | - Egemen Orkun Sadan
- Institute of Science and Technology, Dokuz Eylul University, Izmir, Turkey
| | - Betul Sen
- Department of Physics, Faculty of Science, Dokuz Eylul University, Izmir, Turkey
| | - Elif Subasi
- Department of Chemistry, Faculty of Science, Dokuz Eylul University, Izmir, Turkey
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Szymaszek P, Fiedor P, Chachaj-Brekiesz A, Tyszka-Czochara M, Świergosz T, Ortyl J. Molecular interactions of bovine serum albumin (BSA) with pyridine derivatives as candidates for non-covalent protein probes: a spectroscopic investigation. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118262] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Ashaolu TJ, Samborska K, Lee CC, Tomas M, Capanoglu E, Tarhan Ö, Taze B, Jafari SM. Phycocyanin, a super functional ingredient from algae; properties, purification characterization, and applications. Int J Biol Macromol 2021; 193:2320-2331. [PMID: 34793814 DOI: 10.1016/j.ijbiomac.2021.11.064] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 10/26/2021] [Accepted: 11/10/2021] [Indexed: 01/09/2023]
Abstract
Phycocyanins (PCYs) are a group of luxuriant bioactive compounds found in blue-green algae with an estimated global market of about US$250 million within this decade. The multifarious markets of PCYs noted by form (e.g. powder or aqueous forms), by grade (e.g. analytical, cosmetic, or food grades), and by application (such as biomedical, diagnostics, beverages, foods, nutraceuticals and pharmaceuticals), show that the importance of PCYs cannot be undermined. In this comprehensive study, an overview on PCY, its structure, and health-promoting features are diligently discussed. Methods of purification including chromatography, ammonium sulfate precipitation and membrane filtration, as well as characterization and measurement of PCYs are described. PCYs could have many applications in food colorants, fluorescent markers, nanotechnology, nutraceutical and pharmaceutical industries. It is concluded that PCYs offer significant potentials, although more investigations regarding its purity and safety are encouraged.
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Affiliation(s)
- Tolulope Joshua Ashaolu
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Viet Nam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang 550000, Viet Nam
| | - Katarzyna Samborska
- Institute of Food Sciences, Warsaw University of Life Sciences WULS-SGGW, Poland
| | - Chi Ching Lee
- Department of Food Engineering, Faculty of Engineering and Natural Sciences, Istanbul Sabahattin Zaim University, Istanbul, Turkey
| | - Merve Tomas
- Faculty of Engineering and Natural Sciences, Food Engineering Department, Istanbul Sabahattin Zaim University, Halkali, 34303, Istanbul, Turkey
| | - Esra Capanoglu
- Faculty of Chemical and Metallurgical Engineering, Food Engineering Department, Istanbul Technical University, Maslak, 34469 Istanbul, Turkey
| | - Özgür Tarhan
- Food Engineering Department, Faculty of Engineering, Uşak Üniversitesi, 1 Eylül Kampüsü, 64200 Uşak, Turkey
| | - Bengi Taze
- Food Engineering Department, Faculty of Engineering, Uşak Üniversitesi, 1 Eylül Kampüsü, 64200 Uşak, Turkey
| | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
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Girmatsion M, Adhanom A, Gebremedhin H, Mahmud A, Xie Y, Cheng Y, Yu H, Yao W, Guo Y, Qian H. Ultrasensitive and selective detection of Hg 2+ using fluorescent phycocyanin in an aqueous system. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2021; 56:886-895. [PMID: 34129421 DOI: 10.1080/10934529.2021.1935600] [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: 12/10/2020] [Revised: 05/17/2021] [Accepted: 05/19/2021] [Indexed: 06/12/2023]
Abstract
Hg2+ toxicity is one of the most common chemical poisonings that occurs mainly from drinking polluted water. In the current work, Phycocyanin (PC) was exploited as a fluorescent sensor for sensitive and selective detection of Hg2+ in an aqueous system. PC-Hg2+ interaction was monitored using a spectro-fluorometer under different buffered solutions at pH values of 6,7,8,9, or 10 above the isoelectric point of PC (5.18). A remarkable decrease of PC fluorescence intensity was observed under Tris-buffer at pH 6 upon the addition of increasing Hg2+ concentrations (1-120 nM). Under the maintained experimental conditions, the current sensor showed a good linear relationship with R2 = 0.9971 and a limit of detection as low as 0.7 nM was achieved. In addition, a notable selectivity of Hg2+ over other nine heavy metals (Cu2+, Zn2+, Pb2+, Mg2+, Mn4+, Li+, Fe3+, Co2+, and Al3+) was achieved in the presence of 120 nM of each metal. Moreover, the current fluorescent detection assay was also tested in real samples of pond water, and recoveries as well as relative standard deviations within the acceptable limits were recorded.
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Affiliation(s)
- Mogos Girmatsion
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
- Department of Marine Food and Biotechnology, Massawa College of Marine Science and Technology, Massawa, Eritrea
| | - Awet Adhanom
- Department of Marine Food and Biotechnology, Massawa College of Marine Science and Technology, Massawa, Eritrea
- Ministry of Marine Resources, Quality control laboratory, Massawa, Eritrea
| | - Henok Gebremedhin
- Department of Marine Food and Biotechnology, Massawa College of Marine Science and Technology, Massawa, Eritrea
- Ministry of Marine Resources, Quality control laboratory, Massawa, Eritrea
| | - Abdu Mahmud
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
- Department of Marine Food and Biotechnology, Massawa College of Marine Science and Technology, Massawa, Eritrea
| | - Yunfei Xie
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Yuliang Cheng
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Hang Yu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Weirong Yao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Yahui Guo
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - He Qian
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
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Srinivasan V, Khamrang T, Ponraj C, Saravanan D, Yamini R, Bera S, Jhonsi MA. Pyrene based Schiff bases: Synthesis, crystal structure, antibacterial and BSA binding studies. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129153] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Seyedi S, Parvin P, Jafargholi A, Jelvani S, Shahabi M, Shahbazi M, Mohammadimatin P, Moafi A. Fluorescence properties of Phycocyanin and Phycocyanin-human serum albumin complex. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 239:118468. [PMID: 32470806 DOI: 10.1016/j.saa.2020.118468] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 04/21/2020] [Accepted: 05/09/2020] [Indexed: 06/11/2023]
Abstract
In this work, the fluorescence properties of Phycocyanin (PC) and the corresponding quenching effects are investigated in attendance of human serum albumin (HSA). At first, PC is excited at 532 nm using CW SHG Nd:YAG laser, then the emission wavelength, Stokes shift, quantum yield, extinction constant and self-quenching coefficient are obtained based on the modified Beer-Lambert equation. It is shown that a notable red shift appears in terms of PC concentration. According to the fluorescence spectra, the addition of HSA in PC solution leads to a significant reduction in the fluorescence signal via quenching events, however a lucid blue shift takes place in the same time. Stern-Volmer formalism is used to determine the quenching constant (KS), the number of binding sites (n) between PC and HSA as well as the association constant Ka for the purpose of facile transportation to the target in the context of drug delivery. Eventually, temperature dependent coefficients and corresponding spectral shifts are investigated over a wide range of temperatures at a couple of distinct PC concentrations to attest the dominant static quenching takes place. The rate of conjugate formations elevates at low temperatures leading to a certain blue shift. Furthermore, large KS is measured in the course of signal reduction, particularly at low PC populations. In fact, PC conjugation to HSA is essential interaction to enhance chemo drug transportation. Here, at the body temperature, the quenching coefficient decreases to facilitate the drug release. Moreover, the spectral shift of fluorescence emission can be useful for simultaneous monitoring and drug delivery treatment.
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Affiliation(s)
- S Seyedi
- Physics Department, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran
| | - P Parvin
- Physics Department, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran.
| | - A Jafargholi
- Physics Department, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran
| | - S Jelvani
- Photonics and Quantum Technologies Research School, Nuclear Science and Technology Research Institute, P.O. Box 1439951113, Tehran, Iran
| | - M Shahabi
- High Institute for Research and Education in Transfusion Medicine, P.O. Box 14665-1157, Tehran, Iran
| | - M Shahbazi
- Gorgan University of Agricultural Sciences & Natural Resources, P.O. Box 4913815739, Gorgan, Iran
| | - P Mohammadimatin
- Physics Department, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran
| | - A Moafi
- Physics Department, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran
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Zakharko MA, Panchenko PA, Zarezin DP, Nenajdenko VG, Pritmov DA, Grin MA, Mironov AF, Fedorova OA. Conjugates of 3,4-dimethoxy-4-styrylnaphthalimide and bacteriochlorin for theranostics in photodynamic therapy. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-2885-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Subasi E, Atalay EB, Erdogan D, Sen B, Pakyapan B, Kayali HA. Synthesis and characterization of thiosemicarbazone-functionalized organoruthenium (II)-arene complexes: Investigation of antitumor characteristics in colorectal cancer cell lines. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 106:110152. [DOI: 10.1016/j.msec.2019.110152] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 08/27/2019] [Accepted: 08/30/2019] [Indexed: 01/21/2023]
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12
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Liu Y, Jiang H, Zhao Y, Li X, Dai X, Zhuang J, Zhu M, Jiang X, Wang P, Gao L, Xia T. Three Camellia sinensis glutathione S-transferases are involved in the storage of anthocyanins, flavonols, and proanthocyanidins. PLANTA 2019; 250:1163-1175. [PMID: 31177387 DOI: 10.1007/s00425-019-03206-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 05/31/2019] [Indexed: 05/26/2023]
Abstract
Biochemical, transgenic, and genetic complementation data demonstrate that three glutathione S-transferases are involved in the storage of anthocyanins, flavonols, and proanthocyanins in plant cells. Flavonoids are compounds in tea (Camellia sinensis) that confer the characteristic astringent taste of tea beverages; these compounds have numerous benefits for human health. In plant cells, flavonoids are synthesized in different locations within the cytoplasm and are then transported and finally stored in vacuoles. To date, the mechanism involved in the intracellular transport of flavonoids in tea has not been well elucidated. In this study, we report the functional characterization of three cDNAs encoding glutathione S-transferases (CsGSTs) of C. sinensis, namely, CsGSTa, CsGSTb, and CsGSTc. The expression profiles of CsGSTa and CsGSTb were positively correlated with the accumulation of flavonols, anthocyanins and proanthocyanins in tea tissues and cultivars. These three recombinant CsGSTs showed a high affinity for flavonols (kaempferol-3-O-glucoside and quercetin-3-O-glucoside) and anthocyanin (cyanidin-3-O-glucoside) in vitro but had no or weak affinity for epicatechin. In vivo, CsGSTa, CsGSTb and CsGSTc fully or partially restored the storage of anthocyanins and proanthocyanidins in transgenic tt19 mutants. Metabolic profiling revealed that the contents of anthocyanins, flavonols, and proanthocyanidins were increased in the transgenic petals of Nicotiana tabacum. Taken together, all data showed that CsGSTa, CsGSTb, and CsGSTc are associated with the storage of anthocyanins, flavonols, and proanthocyanins in C. sinensis cells.
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Affiliation(s)
- Yajun Liu
- School of Life Science, Anhui Agricultural University, 130 West Changjiang Rd, Hefei, 230036, Anhui, China
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Han Jiang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Yue Zhao
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Xin Li
- School of Life Science, Anhui Agricultural University, 130 West Changjiang Rd, Hefei, 230036, Anhui, China
| | - Xinlong Dai
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Juhua Zhuang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Mengqing Zhu
- School of Life Science, Anhui Agricultural University, 130 West Changjiang Rd, Hefei, 230036, Anhui, China
| | - Xiaolan Jiang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Peiqiang Wang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Liping Gao
- School of Life Science, Anhui Agricultural University, 130 West Changjiang Rd, Hefei, 230036, Anhui, China.
| | - Tao Xia
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, China.
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Mechanistic and Conformational Studies on the Interaction Between Myriocin and Human Serum Albumin by Fluorescence Spectroscopy and Molecular Docking. J SOLUTION CHEM 2019. [DOI: 10.1007/s10953-019-00895-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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Chen H, Jin R, Liu G, Tian T, Gu C, Zhou J, Xing D. Effects of sludge lysate for Cr(VI) bioreduction and analysis of bioaugmentation mechanism of sludge humic acid. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:5065-5075. [PMID: 30604364 DOI: 10.1007/s11356-018-3917-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 12/04/2018] [Indexed: 06/09/2023]
Abstract
This study evaluated the effects of sludge lysate (SL) on the anaerobic bioreduction of Cr(VI) and the role of sludge humic acid (SHA) during this process. The results showed that supplement of SL significantly enhanced the efficiency of Cr(VI) bioreduction by 29.61%, in 12 h compared with that of the control without SL. Moreover, SHA exhibited promoting effects on bioreduction of Cr(VI), and the promotion increased with increasing SHA concentrations from 100 to 300 mg/L. In the presence of 300 mg/L SHA, Cr(VI) (98.21 mg/L) was completely reduced after 24 h with a removal rate increased by 34.3% compared with that of the control without SHA. Further investigation on the bioaugmentation mechanism of SHA by studying the nature of SHA and the reaction mechanism between SHA and Cr(VI) revealed that SHA exhibited a strong adsorption ability, which could adsorb and combine with Cr(VI). The adsorption capacity of Cr(VI) by SHA was calculated as 34.4 mg/g with 0.2 g of SHA and 10 mg/L of Cr(VI). It could also act as redox mediators to accelerate the electron transfer between microorganisms and Cr(VI) to promote reduction of Cr(VI). Furthermore, the effects of SL on the microbial community compositions of the anaerobic Cr(VI) bioreduction system were studied. Brachymonas was the primary bacteria at the genus level. The abundance of electroactive bacteria, such as Acinetobacter, Pseudomonas, and Arcobacter, increased in the SL-amended system. These findings expand the versatility of SL and justify wider use of residual activated sludge, which might contribute to the treatment of heavy metal-contaminated wastewater.
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Affiliation(s)
- Hongling Chen
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
- Drainage Management Office, Tongliao Municipal Commission of Housing Urban-Rural Development, Tongliao, 028000, China
| | - Ruofei Jin
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China.
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China.
| | - Guangfei Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Tian Tian
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Chen Gu
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Jiti Zhou
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Defeng Xing
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China.
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15
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Makarska-Bialokoz M, Lipke A. Study of the binding interactions between uric acid and bovine serum albumin using multiple spectroscopic techniques. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.12.026] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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16
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Zheng S, Yang S, Cheng X, Bau T, Li Y, Zhang R, Bao H. Fluorescence Spectroscopy and Molecular Docking Approach to Probe the Interaction between Dehydroeburicoic Acid and Human Serum Albumin. ACTA ACUST UNITED AC 2019. [DOI: 10.4236/aim.2019.91003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Sundaravadivel E, Reddy GR, Manoj D, Rajendran S, Kandaswamy M, Janakiraman M. DNA binding and cleavage studies of copper(II) complex containing N2O2 Schiff base ligand. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.06.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Mai J, Li Y, Qiao X, Ji X, Li Q. Exploration on the Interaction Ability of Antitumor Compound Bis-[2,6-difluoro- N-(hydroxyl-<κ> O)benzamidato-<κ> O]dibutylitin(IV) with Human Peroxisome Proliferator-Activated Receptor hPPAR γ. Bioinorg Chem Appl 2018; 2018:3063271. [PMID: 29983705 PMCID: PMC6015708 DOI: 10.1155/2018/3063271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 04/29/2018] [Indexed: 11/24/2022] Open
Abstract
Diorganotin(IV) antitumor compound bis-[2,6-difluoro-N-(hydroxyl-<κ>O)benzamidato-<κ>O] (DBDF2,6T) was one of the novel patent organotin compounds with high antitumor activity and relatively low toxicity. In this study, several methods were used to study the interaction between DBDF2,6T and hPPARγ protein, including fluorescence quenching, three-dimensional (3D) fluorescence, drug affinity responsive target stability (DARTS), ultrafiltration-LC, and molecular docking. According to the experimental results, the quenching process of the hPPARγ protein was induced by static quenching mode to form a nonradiative ground-state complex with DBDF2,6T spontaneously, mainly through the hydrophobic force. DBDF2,6T could bind to the hPPARγ protein directly and give the protein the ability of antienzymatic hydrolysis. And the binding mode of DBDF2,6T into hPPARγ protein appeared to have an orientation towards residues of SER342 and GLY284. In conclusion, these methods could comprehensively reveal the interaction details of DBDF2,6T and the hPPARγ protein and established a feasible way to preliminarily identify the agonist compounds for the hPPARγ protein.
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Affiliation(s)
- Jiaqi Mai
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan 030001, China
| | - Yunlan Li
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan 030001, China
- Shanxi University of Traditional Chinese Medicine, Jinzhong 030619, China
| | - Xiaozhi Qiao
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan 030001, China
| | - Xiaoqing Ji
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan 030001, China
| | - Qingshan Li
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan 030001, China
- Shanxi University of Traditional Chinese Medicine, Jinzhong 030619, China
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19
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Tavsan Z, Yaman PK, Subasi E, Kayali HA. Screening organometallic thiophene containing thiosemicarbazone ruthenium (II/III) complexes as potential anti-tumour agents. J Biol Inorg Chem 2018; 23:425-435. [PMID: 29569084 DOI: 10.1007/s00775-018-1549-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 02/27/2018] [Indexed: 10/17/2022]
Abstract
The new ruthenium (III) complex has been synthesized and characterized by elemental analysis, FT-IR, UV-Vis, EI-Mass, EPR spectroscopy, and magnetic susceptibility measurement. Cytotoxic effects of organoruthenium (II/III) complexes 1a, 1b, and 2a, and their ligands (TSC1 and TSC2) in cultured human ovarian (A2780, SKOV-3, and OVCAR-3) and colon (DLD, CCD18Co, and Caco-2) cells have been investigated comparing reactivity of the Ru (II/III) complexes and their free TSC ligands. The complexes exhibit higher cytotoxicity in three cancer cell lines than in normal cells. The binding with CT-DNA and BSA of the all complexes were weak compared with their ligand in spite of the cellular uptake of these complexes into the cytoplasm and then nucleus while their cytotoxic effects were vice versa. All the results showed that Complex 1b has more efficient cytotoxicity on the colon cancer cells than ovarian cancer cells. However, Complex 2a is a better drug candidate especially for antitumor therapy of metastasized ovarian cancer.
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Affiliation(s)
- Zehra Tavsan
- The Graduate School of Natural and Applied Sciences, Dokuz Eylül University, Izmir, Turkey.,Izmir Biomedicine and Genome Center, Izmir, Turkey
| | - Pelin Köse Yaman
- Department of Chemistry, Faculty of Science, Dokuz Eylül University, Izmir, Turkey
| | - Elif Subasi
- Department of Chemistry, Faculty of Science, Dokuz Eylül University, Izmir, Turkey
| | - Hulya Ayar Kayali
- Department of Chemistry, Faculty of Science, Dokuz Eylül University, Izmir, Turkey. .,Izmir Biomedicine and Genome Center, Izmir, Turkey.
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20
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de Morais MG, da Fontoura Prates D, Moreira JB, Duarte JH, Costa JAV. Phycocyanin from Microalgae: Properties, Extraction and Purification, with Some Recent Applications. Ind Biotechnol (New Rochelle N Y) 2018. [DOI: 10.1089/ind.2017.0009] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Affiliation(s)
- Michele Greque de Morais
- Laboratory of Microbiology and Biochemistry, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande, Brazil
| | - Denise da Fontoura Prates
- Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande, Brazil
| | - Juliana Botelho Moreira
- Laboratory of Microbiology and Biochemistry, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande, Brazil
| | - Jessica Hartwig Duarte
- Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande, Brazil
| | - Jorge Alberto Vieira Costa
- Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande, Brazil
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21
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Evaluation of DNA binding, DNA cleavage, protein binding, radical scavenging and in vitro cytotoxic activities of ruthenium(II) complexes containing 2,4-dihydroxy benzylidene ligands. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:1297-306. [DOI: 10.1016/j.msec.2016.08.043] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 07/29/2016] [Accepted: 08/17/2016] [Indexed: 12/18/2022]
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22
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Naggar AH, El Kaoutit M, Naranjo-Rodriguez I, El-Sayed AY, Hidalgo-Hidalgo de Cisneros JL. Voltammetric and Spectroscopic Investigation of the Interaction Between 1,4-Benzodiazepines and Bovine Serum Albumin. J SOLUTION CHEM 2016. [DOI: 10.1007/s10953-016-0532-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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23
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Mohanraj M, Ayyannan G, Raja G, Jayabalakrishnan C. Synthesis, characterization and in vitro
biological assays of copper(II) and nickel(II) complexes with furan-2-carboxylic acid hydrazide. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3582] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Maruthachalam Mohanraj
- Post Graduate and Research Department of Chemistry; Sri Ramakrishna Mission Vidyalaya College of Arts and Science; Coimbatore 641 020 Tamil Nadu India
| | - Ganesan Ayyannan
- Post Graduate and Research Department of Chemistry; Sri Ramakrishna Mission Vidyalaya College of Arts and Science; Coimbatore 641 020 Tamil Nadu India
| | - Gunasekaran Raja
- Post Graduate and Research Department of Chemistry; Sri Ramakrishna Mission Vidyalaya College of Arts and Science; Coimbatore 641 020 Tamil Nadu India
| | - Chinnasamy Jayabalakrishnan
- Post Graduate and Research Department of Chemistry; Sri Ramakrishna Mission Vidyalaya College of Arts and Science; Coimbatore 641 020 Tamil Nadu India
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24
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Wei Y, Niu L, Liu X, Zhou H, Dong H, Kong D, Li Y, Li Q. Spectroscopic studies and molecular docking on the interaction of organotin antitumor compound bis[2,4-difluoro-N-(hydroxy-⟨κ⟩O)benzamidato-⟨κ⟩O]diphenyltin(IV) with human cytochrome P450 3A4 protease. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 163:154-161. [PMID: 27049867 DOI: 10.1016/j.saa.2016.03.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 03/11/2016] [Accepted: 03/15/2016] [Indexed: 06/05/2023]
Abstract
A novel organotin DFDPT was synthesized and characterized by elemental analysis, IR, (1)H, (13)C, (119)Sn, NMR techniques,etc. In order to investigate profoundly the relationship between DFDPT with human CYP3A4 proteaset and anticancer molecular mechanism of DFDPT, the intercalative mode of binding of DFDPT with CYP3A4 under physiological conditions were comprehensively evaluated using steady state, synchronous, three-dimensional fluorescence spectroscopy,circular dichroism and molecular docking. Fluorescence emission data showed that CYP3A4 fluorescence affected by DFDPT was a static quenching procedure, which implied that DFDPT-CYP3A4 complex had been formed. Apparent binding constants Kb of CYP3A4 with compound at 298 and 310K were 2.51×10(7) and 3.09×10(5), respectively. The binding sites number n was 1.64 and 1.22, respectively. The thermodynamic parameters ΔH and ΔS of the DFDPT-CYP3A4 complex were negative, which indicated that their interaction was driven mainly by hydrogen bonding and van der Waals force. The binding of DFDPT-CYP3A4 was spontaneous process in which ΔG was negative. The synchronous results showed DFDPT induced conformational changes of CYP3A4 protein. Three-dimensional fluorescence and circular dichroism spectra results also revealed conformation of CYP3A4 protein had been possible changed in the presence of DFDPT. Molecular docking was used to study the interaction orientation between DFDPT and CYP3A4 protease. The results indicated that DFDPT interacted with a panel of amino acids in the active sites of CYP3A4 protein mainly through formation of hydrogen bond. Furthermore, the predicted binding mode of DFDPT into CYP3A4 appeared to adopt an orientation with interactions among Arg105, Ser119 and Thr309.
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Affiliation(s)
- Ying Wei
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan 030001, PR China
| | - Lin Niu
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan 030001, PR China
| | - Xinxin Liu
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan 030001, PR China
| | - Hongyan Zhou
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan 030001, PR China
| | - Hongzhou Dong
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan 030001, PR China
| | - Depeng Kong
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan 030001, PR China
| | - Yunlan Li
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan 030001, PR China.
| | - Qingshan Li
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan 030001, PR China.
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25
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Interaction of KRAS G-quadruplex with natural polyphenols: A spectroscopic analysis with molecular modeling. Int J Biol Macromol 2016; 89:228-37. [PMID: 27130653 DOI: 10.1016/j.ijbiomac.2016.04.074] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 04/25/2016] [Accepted: 04/25/2016] [Indexed: 12/30/2022]
Abstract
Researchers are endeavoring to find out new therapeutics for curing cancer and G-quadruplex DNA has already been identified as a prospective one in this venture. Stabilizing G-quadruplex structures of telomere has emerged to be an important strategy in this context. Mutation in KRAS is mostly responsible for pancreatic, lung and colon cancer. In this present study we explored binding and conformational behaviour of G-quadruplex with different ligands by utilizing several biophysical techniques. Natural polyphenols like Curcumin and Ellagic acid were observed to bind with the G-quadruplex and enhance the melting temperature significantly indicating higher stability. UV-vis spectroscopy confirms formation of G quadruplex-ligand complex for both the compounds with specific binding affinity. Fluorimetric studies revealed that Ellagic acid had stronger binding affinity, 1.10×10(5)M(-1) compared to Curcumin, 1.6×10(4)M(-1) towards G-quadruplex. Interestingly, Curcumin provides greater stability by stacking on the top of the quadruplex structure with the help of the loops compared to Ellagic acid as is evident by docking studies. The keto form of curcumin showed stronger affinity than the enol form. We have developed a general model to estimate the influence of the ligands towards stabilizing the G-quadruplex subsequently characterizing the binding profile to enlighten prospective therapeutics.
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26
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Meti MD, Nandibewoor ST, Joshi SD, More UA, Chimatadar SA. Binding interaction and conformational changes of human serum albumin with ranitidine studied by spectroscopic and time-resolved fluorescence methods. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2016. [DOI: 10.1007/s13738-016-0847-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Suryawanshi VD, Walekar LS, Gore AH, Anbhule PV, Kolekar GB. Spectroscopic analysis on the binding interaction of biologically active pyrimidine derivative with bovine serum albumin. J Pharm Anal 2016; 6:56-63. [PMID: 29403963 PMCID: PMC5762442 DOI: 10.1016/j.jpha.2015.07.001] [Citation(s) in RCA: 230] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Revised: 07/11/2015] [Accepted: 07/14/2015] [Indexed: 12/02/2022] Open
Abstract
A biologically active antibacterial reagent, 2-amino-6-hydroxy-4-(4-N, N-dimethylaminophenyl)-pyrimidine-5-carbonitrile (AHDMAPPC), was synthesized. It was employed to investigate the binding interaction with the bovine serum albumin (BSA) in detail using different spectroscopic methods. It exhibited antibacterial activity against Escherichia coli and Staphylococcus aureus which are common food poisoning bacteria. The experimental results showed that the fluorescence quenching of model carrier protein BSA by AHDMAPPC was due to static quenching. The site binding constants and number of binding sites (n≈1) were determined at three different temperatures based on fluorescence quenching results. The thermodynamic parameters, enthalpy change (ΔH), free energy (ΔG) and entropy change (ΔS) for the reaction were calculated to be 15.15 kJ/mol, -36.11 kJ/mol and 51.26 J/mol K according to van't Hoff equation, respectively. The results indicated that the reaction was an endothermic and spontaneous process, and hydrophobic interactions played a major role in the binding between drug and BSA. The distance between donor and acceptor is 2.79 nm according to Förster's theory. The alterations of the BSA secondary structure in the presence of AHDMAPPC were confirmed by UV-visible, synchronous fluorescence, circular dichroism (CD) and three-dimensional fluorescence spectra. All these results indicated that AHDMAPPC can bind to BSA and be effectively transported and eliminated in the body. It can be a useful guideline for further drug design.
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Affiliation(s)
| | | | | | | | - Govind B. Kolekar
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416 004, Maharashtra, India
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28
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Thota S, Vallala S, Yerra R, Rodrigues DA, Raghavendra NM, Barreiro EJ. Synthesis, characterization, DNA binding, DNA cleavage, protein binding and cytotoxic activities of Ru(II) complexes. Int J Biol Macromol 2016; 82:663-70. [DOI: 10.1016/j.ijbiomac.2015.09.045] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 09/23/2015] [Accepted: 09/24/2015] [Indexed: 11/24/2022]
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29
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Yu X, Liao Z, Jiang B, Hu X, Li X. Spectroscopic analyses on interaction of bovine serum albumin with novel spiro[cyclopropane-pyrrolizin]. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:129-136. [PMID: 25218221 DOI: 10.1016/j.saa.2014.08.098] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 08/09/2014] [Accepted: 08/24/2014] [Indexed: 06/03/2023]
Abstract
The interaction between novel spiro[cyclopropane-pyrrolizin] (NSCP) and bovine serum albumin (BSA) was analyzed by fluorescence and ultraviolet-visible (UV-Vis) spectroscopy at 298 K, 304 K and 310 K under simulative physiological conditions. The results showed that NSCP can effectively quench the intrinsic fluorescence of BSA via static quenching. The binding constants, binding sites of NSCP with BSA were calculated. Hydrogen binds and van der Waals force played a major role in stabilizing the complex and the binding reaction were spontaneous. According to the Förster non-radiation energy transfer theory, the average binding distances between NSCP and BSA were obtained. What is more, the synchronous fluorescence spectra indicated that the conformation of BSA has been changed.
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Affiliation(s)
- Xianyong Yu
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005, China; Key Laboratory of Computational Physical Sciences (Fudan University), Ministry of Education, Shanghai 200433, China.
| | - Zhixi Liao
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Bingfei Jiang
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Xiaolian Hu
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Xiaofang Li
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
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30
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Yu X, Liao Z, Yao Q, Liu H, Xie W. Spectroscopic studies on the interaction of Phacolysin and bovine serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 127:231-236. [PMID: 24632176 DOI: 10.1016/j.saa.2014.02.064] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 01/29/2014] [Accepted: 02/11/2014] [Indexed: 06/03/2023]
Abstract
The interaction between Phacolysin (PCL) and bovine serum albumin (BSA) under imitated physiological conditions was investigated by spectroscopic (fluorescence, UV-Vis absorption and Circular dichroism) techniques. The experiments were conducted at different temperatures (294K, 302K, 306K and 310K) and the results showed that the PCL caused the fluorescence quenching of BSA through a static quenching procedure. The binding constant (Ka), binding sites (n) were obtained. The corresponding thermodynamic parameters (ΔH, ΔS and ΔG) of the interaction system were calculated at different temperatures. The results revealed that the binding process was spontaneous and the acting force between PCL and BSA were mainly hydrogen bonding and van der Waals forces. According to Förster non-radiation energy transfer theory, the binding distance between PCL and BSA was calculated to be 2.41nm. What is more, both synchronous fluorescence and Circular dichroism spectra confirmed the interaction, which indicated the conformational changes of BSA.
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Affiliation(s)
- Xianyong Yu
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005, China; Key Laboratory of Computational Physical Sciences, Fudan University, Ministry of Education, Shanghai, China.
| | - Zhixi Liao
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Qing Yao
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Heting Liu
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Wenlin Xie
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
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31
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Yu X, Liao Z, Yao Q, Liu H, Li X, Yi P. The investigation of the interaction between Tropicamide and bovine serum albumin by spectroscopic methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 118:331-336. [PMID: 24056312 DOI: 10.1016/j.saa.2013.08.103] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 08/15/2013] [Accepted: 08/23/2013] [Indexed: 06/02/2023]
Abstract
The fluorescence and ultraviolet-visible (UV-Vis) spectroscopy were explored to study the interaction between Tropicamide (TA) and bovine serum albumin (BSA) at three different temperatures (292, 301 and 310K) under imitated physiological conditions. The experimental results showed that the fluorescence quenching mechanism between TA and BSA was static quenching procedure. The binding constant (Ka), binding sites (n) were obtained. The corresponding thermodynamic parameters (ΔH, ΔS and ΔG) of the interaction system were calculated at different temperatures. The results revealed that the binding process is spontaneous, hydrogen binds and vander Waals were the main force to stabilize the complex. According to Förster non-radiation energy transfer theory, the binding distance between TA and BSA was calculated to be 4.90 nm. Synchronous fluorescence spectroscopy indicated the conformation of BSA changed in the presence of TA. Furthermore, the effect of some common metal ions (Mg(2+), Ca(2+), Cu(2+), and Ni(2+)) on the binding constants between TA and BSA were examined.
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Affiliation(s)
- Xianyong Yu
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005, China.
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32
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Sundaravadivel E, Vedavalli S, Kandaswamy M, Varghese B, Madankumar P. DNA/BSA binding, DNA cleavage and electrochemical properties of new multidentate copper(ii) complexes. RSC Adv 2014. [DOI: 10.1039/c4ra03554b] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new series of multidentate copper(ii) complexes [Cu(L1−5)](ClO4) (1–5) were synthesized and characterized for their DNA/BSA binding, DNA cleavage, cytotoxic properties and antimicrobial activities.
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Affiliation(s)
| | - Sairaj Vedavalli
- Department of Inorganic Chemistry
- University of Madras
- Chennai 600 025, India
| | | | - Babu Varghese
- Sophisticated Analytical Instruments Facility
- Indian Institute of Technology
- Chennai 600 036, India
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33
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Xue JJ, Chen QY. The interaction between ionic liquids modified magnetic nanoparticles and bovine serum albumin and the cytotoxicity to HepG-2 cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 120:161-166. [PMID: 24184619 DOI: 10.1016/j.saa.2013.10.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Revised: 09/29/2013] [Accepted: 10/02/2013] [Indexed: 06/02/2023]
Abstract
The interaction between ionic liquids modified magnetic Fe3O4 (Fe2) and bovine serum albumin (BSA) is reported and is compared with NH2 functionalized magnetic nanoparticles Fe3O4 (Fe1) based on the UV-visible spectrum, steady-state fluorescence measurements, synchronous fluorescence and DSC methods. The results indicate a static quenching mechanism operating in both nanoparticles. The binding constant of the Fe2-BSA complex calculated from fluorescence data shows that BSA has a low binding affinity for Fe2 than Fe1. DSC data reveal that the thermal stability process of BSA in the Fe2-BSA complex is semi-reversible. This demonstrates that the ionic liquid modified magnetic nanoparticles (Fe2) enhance the thermostability of BSA in the range of 20-40°C, and protein attached Fe2 has higher thermal stability than free BSA. Moreover, the in vitro assay results show that Fe2 shows low cytotoxicity to HepG-2 cells.
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Affiliation(s)
- Juan-Juan Xue
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Qiu-Yun Chen
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
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Chen R, Jiang H, Pu H. Interaction of artemisinin and its derivatives with human serum albumin studied using spectroscopies and molecular modeling methods. Mol Biol Rep 2013; 40:4791-804. [DOI: 10.1007/s11033-013-2575-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Accepted: 04/29/2013] [Indexed: 11/29/2022]
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35
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Investigation of the Interaction Between Novel Spiro Thiazolo[3,2-a][1,3,5]Triazines and Bovine Serum Albumin by Spectroscopic Methods. J SOLUTION CHEM 2013. [DOI: 10.1007/s10953-013-9975-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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36
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Zhang J, Chen L, Zeng B, Kang Q, Dai L. Study on the binding of chloroamphenicol with bovine serum albumin by fluorescence and UV-vis spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 105:74-79. [PMID: 23295213 DOI: 10.1016/j.saa.2012.11.064] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 11/09/2012] [Accepted: 11/16/2012] [Indexed: 06/01/2023]
Abstract
The binding of chloroamphenicol (CPC) to bovine serum albumin (BSA) at 296 K, 303 K, and 310 K by fluorescence and UV-visible absorption spectroscopy were investigated under imitated physiological conditions. The experimental results showed that the fluorescence quenching mechanism between CPC and BSA was combined quenching (dynamic and static quenching) procedure at low CPC concentration, or a dynamic quenching procedure at high concentrations. The binding constants, binding sites and the corresponding thermodynamic parameters of the interaction system were calculated. According to Förster non-radiation energy transfer theory, the binding distance between CPC and BSA was calculated to be 3.02 nm. Both synchronous fluorescence and FT-IR spectra confirmed the interaction, and indicated the conformational changes of BSA. The effects of some common metal ions Ca(2+), Ni(2+), Mg(2+), Fe(2+), and Cu(2+) on the binding constant between CPC and BSA were examined. Furthermore, we investigated the possible sub-domains on BSA that bind CPC by displacement experiments.
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Affiliation(s)
- Jun Zhang
- Department of Physics, School of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China.
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37
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Huang R, Zhang S, Pan L, Li J, Liu F, Liu H. Spectroscopic studies on the interactions between imidazolium chloride ionic liquids and bovine serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 104:377-382. [PMID: 23274265 DOI: 10.1016/j.saa.2012.11.087] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 11/18/2012] [Accepted: 11/27/2012] [Indexed: 06/01/2023]
Abstract
The binding of three imidazolium chloride ionic liquids (ILs) with bovine serum albumin (BSA) were investigated by UV absorption spectra, fluorescence spectra and synchronous fluorescence spectra. The results showed that the UV absorption of the BSA was red-shift, and intensity of UV absorption declined with the increase in concentration of ILs. According to fluorescence spectra, fluorescence quenching of the BSA was happened with ILs added, and the main reason is static quenching. The study of synchronous fluorescence spectra indicated that ILs interacted with tryptophan (Trp) and tyrosine (Tyr) residues, changed the structure and the internal hydrophobic conformation of BSA. The binding constant K and the numbers of binding sites n were obtained by Stern-Volmer equation. For [Bmim]Cl, K=16.12 L mol(-1), n was 0.64; for [Hmim]Cl, K=31.48 L mol(-1), n was 0.70; for [Omim]Cl, K=355.22 L mol(-1), n was 0.99. The binding strength of ILs with BSA is expected to show the trend with the length of carbon chain, [Bmim]Cl<[Hmim]Cl<[Omim]Cl.
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Affiliation(s)
- Ruonan Huang
- College of Environmental Science and Engineering, Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Zhejiang Gongshang University, Hangzhou Zhejiang 310012, China
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Suryawanshi VD, Anbhule PV, Gore AH, Patil SR, Kolekar GB. A spectral deciphering the perturbation of model transporter protein (HSA) by antibacterial pyrimidine derivative: Pharmacokinetic and biophysical insights. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2013. [PMID: 23207139 DOI: 10.1016/j.jphotobiol.2012.09.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Vishwas D Suryawanshi
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416 004, Maharashtra, India
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Investigation on the Binding Behavior of Ellagic Acid to Human Serum Albumin in Aqueous Solution. J SOLUTION CHEM 2012. [DOI: 10.1007/s10953-012-9938-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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40
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Yu X, Yang Y, Yao Q, Tao H, Lu S, Xie J, Zhou H, Yi P. Spectroscopic analysis of the interaction between thiazolo[2,3-b]pyrimidine analogues and bovine serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 96:690-697. [PMID: 22885082 DOI: 10.1016/j.saa.2012.07.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2012] [Accepted: 07/10/2012] [Indexed: 06/01/2023]
Abstract
The interaction between thiazolo[2,3-b]pyrimidine (TZPM) analogues and bovine serum albumin (BSA) was investigated by fluorescence spectroscopy and UV-Vis spectroscopy at two different temperatures (299 and 307K) under imitated physiological conditions. The results indicate that both static quenching and dynamic quenching contribute to the fluorescence quenching of BSA by TZPM. The binding constant (K(a)) and binding sites (n) were calculated from the obtained spectra. Based on the Förster non-radiation energy transfer theory, the average binding distance between BSA and TZPM was estimated. The synchronous fluorescence spectra indicate that the conformation of BSA has been changed. The comparison of binding potency of TZPM and BSA suggests that the substituents on the benzene ring enhance the binding affinity of TZPM and BSA. We investigated the possible sub-domains on BSA that bind TZPM by displacement experiments. Furthermore, to explore the effect of molecular structure on the binding, a study on quantitative structure-property relationship (QSPR) was performed, the quantitative relationship equation of R(0), r and K(a) were obtained. We observed that R(0), r and K(a) between BSA and TZPM is connected with the margin of the highest and the lowest occupied orbital energy (ΔE), dipole moment (μ), Molar Volume (V(m)), Mole Mass (M).
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Affiliation(s)
- Xianyong Yu
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
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Qian Y, Zhou X, Chen J, Zhang Y. Binding of bezafibrate to human serum albumin: insight into the non-covalent interaction of an emerging contaminant with biomacromolecules. Molecules 2012; 17:6821-31. [PMID: 22664469 PMCID: PMC6268793 DOI: 10.3390/molecules17066821] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Revised: 05/21/2012] [Accepted: 05/22/2012] [Indexed: 11/16/2022] Open
Abstract
In recent years, bezafibrate (BZF) has been frequently detected in environmental media. In order to reveal the toxicity of such an emerging pollutant, its interaction with human serum albumin (HSA) was studied by fluorescence spectrometry, circular dichroism, and equilibrium dialysis. Fluorescence data showed that the fluorescence quenching of HSA by BZF resulted from the formation of HSA-BZF complex. The binding constants were determined to be 3.33 × 10³, 2.84 × 10³ M⁻¹ at 298 and 309.5 K, respectively. The thermodynamic determination indicated that the hydrophobic and electrostatic interaction were the dominant binding force. The conformational investigation showed that the presence of BZF increased the α-helix content of HSA and induced the slight unfolding of the polypeptides of protein. Finally, the equilibrium dialysis showed that 0.56 mM BZF decreased the binding of vitamin B₂ to HSA by 29%.
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Affiliation(s)
- Yajie Qian
- Key Laboratory of Yangtze River Water Environment for Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Xuefei Zhou
- Key Laboratory of Yangtze River Water Environment for Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Author to whom correspondence should be addressed; ; Tel.: +86-21-659-80532
| | - Jiabin Chen
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Yalei Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
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Jiang H, Chen R, Wang H, Pu H. Interaction of cyproheptadine hydrochloride with human serum albumin using spectroscopy and molecular modeling methods. LUMINESCENCE 2012; 28:244-52. [DOI: 10.1002/bio.2374] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2011] [Revised: 03/06/2012] [Accepted: 03/09/2012] [Indexed: 11/11/2022]
Affiliation(s)
- Hua Jiang
- Bio‐engineering Institute, College of Life Science and TechnologyJinan University Guangzhou 510632 China
| | - Rongrong Chen
- Bio‐engineering Institute, College of Life Science and TechnologyJinan University Guangzhou 510632 China
| | - Hongcui Wang
- Bio‐engineering Institute, College of Life Science and TechnologyJinan University Guangzhou 510632 China
| | - Hanlin Pu
- Bio‐engineering Institute, College of Life Science and TechnologyJinan University Guangzhou 510632 China
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Vijayabharathi R, Sathyadevi P, Krishnamoorthy P, Senthilraja D, Brunthadevi P, Sathyabama S, Priyadarisini VB. Interaction studies of resistomycin from Streptomyces aurantiacus AAA5 with calf thymus DNA and bovine serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 89:294-300. [PMID: 22285949 DOI: 10.1016/j.saa.2011.12.072] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Revised: 12/24/2011] [Accepted: 12/26/2011] [Indexed: 05/31/2023]
Abstract
Resistomycin, a secondary metabolite produced by Streptomyces aurantiacus AAA5. The binding interaction of resistomycin with calf thymus DNA (CT DNA) and bovine serum albumin (BSA) was investigated by spectrophotometry, spectrofluorimetry, circular dichroism (CD) and synchronous fluorescence techniques under physiological conditions in vitro. Absorption spectral studies along with the fluorescence competition with ethidium bromide measurements and circular dichroism clearly suggest that the resistomycin bind with CT DNA relatively strong via groove binding. BSA interaction results revealed that the drug was found to quench the fluorescence intensity of the protein through a static quenching mechanism. The number of binding sites 'n' and apparent binding constant 'K' calculated according to the Scatchard equation exhibit a good binding property to bovine serum albumin protein. In addition, the results observed from synchronous fluorescence measurements clearly demonstrate the occurrence of conformational changes of BSA upon addition of the test compound.
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Affiliation(s)
- R Vijayabharathi
- Clinical Biotechnology Lab, Department of Microbial Biotechnology, Bharathiar University, Coimbatore, India.
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Interaction of Human Serum Albumin with Indomethacin: Spectroscopic and Molecular Modeling Studies. J SOLUTION CHEM 2012. [DOI: 10.1007/s10953-012-9809-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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45
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Suryawanshi VD, Anbhule PV, Gore AH, Patil SR, Kolekar GB. Spectroscopic Investigation on the Interaction of Pyrimidine Derivative, 2-Amino-6-hydroxy-4-(3,4-dimethoxyphenyl)-pyrimidine-5-carbonitrile with Human Serum Albumin: Mechanistic and Conformational Study. Ind Eng Chem Res 2011. [DOI: 10.1021/ie202005c] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vishwas D. Suryawanshi
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur-416 004, Maharashtra, India
| | - Prashant V. Anbhule
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur-416 004, Maharashtra, India
| | - Anil H. Gore
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur-416 004, Maharashtra, India
| | - Shivajirao R. Patil
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur-416 004, Maharashtra, India
| | - Govind B. Kolekar
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur-416 004, Maharashtra, India
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Huang H, Xu M, Gao Y, Wang G, Su X. Water-soluble fluorescent conjugated polymer-enzyme hybrid system for the determination of both hydroquinone and hydrogen peroxide. Talanta 2011; 86:164-9. [DOI: 10.1016/j.talanta.2011.08.053] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Revised: 08/25/2011] [Accepted: 08/26/2011] [Indexed: 01/22/2023]
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47
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Detection of DNA via the Fluorescence Quenching of Mn-doped ZnSe D-dots/Doxorubicin/DNA Ternary Complexes System. J Fluoresc 2011; 22:103-9. [DOI: 10.1007/s10895-011-0934-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2011] [Accepted: 07/28/2011] [Indexed: 10/17/2022]
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Chen J, Zhou X, Zhang Y, Zi Y, Qian Y, Gao H, Lin S. Binding of triclosan to human serum albumin: insight into the molecular toxicity of emerging contaminant. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2011; 19:2528-2536. [PMID: 22828882 DOI: 10.1007/s11356-012-0901-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Accepted: 03/12/2012] [Indexed: 06/01/2023]
Abstract
PURPOSE The interaction between triclosan (TCS) and human serum albumin (HSA) was investigated in order to obtain the binding mechanism, binding constant, the type of binding force, the binding distance between the donor and acceptor, and the effect of TCS on the conformation change of HSA. METHODS A HSA solution was added to the quartz cell and then titrated by successive addition of TCS. The fluorescence quenching spectra and synchronous spectra were recorded with the excitation and emission slits of the passage of band set at 10 and 20 nm. Three-dimensional fluorescence spectra of HSA were recorded before and after the addition of TCS. The capillary electrophoresis was conducted with the pressure injection mode at 0.5 psi for 5 s, separation under 25 kV, and detection at 214 nm. RESULTS Fluorescence data indicated the fluorescence quenching of HSA by TCS was static quenching, and the quenching constants (K ( a )) were 1.14 × 10(5), 8.75 × 10(4), 6.67 × 10(4), and 5.00 × 10(4) at 293, 298, 303, and 309 K, respectively. The thermodynamic parameters, enthalpy change (ΔH) and entropy change (ΔS) for the interaction were calculated to be -37.9 kJ mol(-1) and 32.6 J mol(-1) K(-1). The binding distance between TCS and tryptophan residues of HSA was obtained to be 1.81 nm according to Fǒrster nonradioactive energy transfer theory. The UV-Vis absorption spectroscopy, the synchronous fluorescence spectroscopy, three-dimensional fluorescence spectroscopy, and circular dichroism spectroscopy revealed the alterations of HSA secondary structure in the presence of TCS. Finally, the interaction between TCS and HSA was further confirmed by capillary electrophoresis. CONCLUSIONS TCS was bound to HSA to form the TCS-HSA complex, with the binding distance of 1.81 nm. Hydrophobic interaction and hydrogen bond were dominated in the binding. TCS could change the secondary conformation of HSA. This work provides an insight into noncovalent interaction between emerging pollutants and protein, helping to elucidate the toxic mechanism of such pollutants.
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Affiliation(s)
- Jiabin Chen
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China.
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Krishnamoorthy P, Sathyadevi P, Cowley AH, Butorac RR, Dharmaraj N. Evaluation of DNA binding, DNA cleavage, protein binding and in vitro cytotoxic activities of bivalent transition metal hydrazone complexes. Eur J Med Chem 2011; 46:3376-87. [PMID: 21600679 DOI: 10.1016/j.ejmech.2011.05.001] [Citation(s) in RCA: 241] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 04/25/2011] [Accepted: 05/02/2011] [Indexed: 11/18/2022]
Abstract
Divalent Co, Ni and Cu hydrazone complexes containing [N'-(phenyl(pyridine-2-yl)methylidene) benzohydrazide] ligand were synthesised and characterised. Interactions of these complexes with DNA revealed an intercalative mode of binding between them. Further, all the hydrazone chelates showed moderate ability to cleave pUC19 DNA. Synchronous fluorescence spectra proved that the interaction of metal complexes with bovine serum albumin (BSA) resulted in a conformational change of the latter. Assay on the cytotoxicity of the above complexes against HeLa tumor cells and NIH 3T3 normal cells revealed that the complexes are toxic only against tumor cells but not to normal cells. In all the biological assays, the complex with copper ion as the metal center showed enhanced activities than the other two.
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Affiliation(s)
- P Krishnamoorthy
- Department of Chemistry, Bharathiar University, Coimbatore 641 046, India
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50
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Yin L, Xu L, Yu K, Zhen Y, Han X, Xu Y, Qi Y, Peng J, Tan A. Orthogonal test design for optimization of suitable conditions to separate C-phycocyanin from Spirulina platensis by high-speed counter-current chromatography using reverse micelle solvent system. J Sep Sci 2011; 34:1253-60. [DOI: 10.1002/jssc.201000892] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2010] [Revised: 02/15/2011] [Accepted: 03/05/2011] [Indexed: 11/09/2022]
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