Frozandeh Moghadam, Hossein (2019) Binding analysis of two novel Zn (II) dithiocarbamate complexes with bovine β-lactoglobulin using experimental and theoretical approaches. Masters thesis, university of zabol.
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Abstract
Today, the synthesis of new chemical compounds that have medicinal properties has received much attention. In this study, two binuclear complexes ])N-N)Zn(μ-pr-dtc)Zn(NN)[( NO3)2 (μ-pr-dtc = propylenebis-dithiocarbamate; N-N = 2,2ʹ-bipyridine, complex a, and 1,10-phenanthroline, complex b) were synthesized. The antioxidant properties of the two complexes were evaluated using DPPH free radical (2,2-diphenyl-1-picrylhydrazyl). The interaction between the above complexes and the β-lactoglobulin (-LG) was investigated by spectroscopic and molecular docking methods. Fluorescence spectroscopic results showed that the interaction between palladium complexes and -LG leads to the quenching of the -LG fluorescence emission by dynamic quenching mechanism. The binding constant values were 1.6×103 M-1 for the complex a and 1.94×104 M-1 for the complex b, at 300 K. Thermodynamic parameters showed that hydrogen bonds and Van der Waals interactions play a major role in the interaction between the two complexes and -LG. Experiments performed by FT-IR, UVVis, and CD spectroscopy confirmed that the interaction between two complexes and -LG leads to change in the structure and decrease in α-helix of protein. The Molecular docking studies indicate the Zn(II) complexes bind to amino acid residues located in site II of -LG.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | Beta-lactoglobulin; Zinc Complexes; Anticancer Properties, Molecular Docking |
| Subjects: | Q Science > QD Chemistry |
| Depositing User: | Mrs najmeh khajeh |
| Date Deposited: | 24 Nov 2019 05:22 |
| Last Modified: | 24 Nov 2019 05:22 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/2593 |
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