Please use this identifier to cite or link to this item: https://scidar.kg.ac.rs/handle/123456789/13859
Title: Synthesis, characterization and investigating the binding mechanism of novel coumarin derivatives with human serum albumin: Spectroscopic and computational approach
Authors: Avdović, Edina
Milanović, Žiko
Molcanov K.
Roca S.
Vikić-Topić D.
Mrkalić, Emina
Jelic, Ratomir
Marković, Zoran
Issue Date: 2022
Abstract: Two 4-hydroxycoumarin derivatives: (E)-3-(1-((4‑hydroxy-3-methoxyphenyl)amino) -ethylidene)chromane-2,4‑dione (L1) and (E)-3-(1-((3‑hydroxy-4-methoxyphenyl)-amino)ethylidene) chromane-2,4‑dione (L2), were prepared and structurally characterized by spectroscopic techniques in combination with the B3LYP-D3BJ theoretical method. The interactions between newly synthesized compounds and human serum albumin (HSA) were investigated under physiological conditions at 296,303, and 310 K by fluorescence and absorption spectroscopy, molecular docking, and molecular dynamic simulations. The results of absorption and fluorescence spectral analysis showed that ligands quenched HSA fluorescence through a static process. The corresponding thermodynamic parameters ΔH0, ΔS0, and ΔG0 were calculated according to Van't Hoff's equation. The obtained results indicated that compounds bind spontaneously to HSA mainly by van der Waals's forces and through hydrogen bonds. Ligand-competitive displacement experiments, using known site-specific ligands for HSA's binding sites (I and II) suggest that ligands had a higher affinity for site I (subdomain IIA). The results of the computational analysis follow the experimental data, and the obtained results suggest that the investigated compounds show a good binding affinity according to the HSA receptor, which will be useful for future studies related to rational drug design.
URI: https://scidar.kg.ac.rs/handle/123456789/13859
Type: article
DOI: 10.1016/j.molstruc.2022.132366
ISSN: 0022-2860
SCOPUS: 2-s2.0-85122643080
Appears in Collections:Faculty of Medical Sciences, Kragujevac

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