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Exploring the binding behaviors between nisoldipine and bovine serum albumin as a model protein by the aid of multi-spectroscopic approaches and in silico

Exploring the binding behaviors between nisoldipine and bovine serum albumin as a model protein by the aid of multi-spectroscopic approaches and in silico

Authors :
Hu, Zhe-Ying
Wu, Meng
Wang, Wan-Jun
Jiang, Shao-Liang
Shi, Jie-Hua
Source :
Journal of Biomolecular Structure and Dynamics; August 2024, Vol. 42 Issue: 12 p6108-6118, 11p
Publication Year :
2024

Abstract

AbstractBovine serum albumin (BSA), a model protein was used to evaluate the binding behavior of nisoldipine and human serum albumin by a series of experiments and in silicoin this article. The outcomes suggested that nisoldipine and BSA formed the nisoldipine-BSA complex with a molar ratio of 1:1, caused the fluorescence quenching of BSA, which quenching mechanism was attributable to static quenching. The binding constant of the nisoldipine-BSA complex was (1.3–3.0) × 104 M−1at 298–310 K, indicating that nisoldipine on BSA protein had a moderate affinity. During the complexation of nisoldipine with BSA, nisoldipine can spontaneously insert into the site II (subdomain III A) of BSA and the distance of energy transfer from donor group in protein to acceptor group in nisoldipine was 3.21 nm, which led to the change in the hydrophobicity of the microenvironment surrounding Trp residues and in the secondary structure of BSA. Additionally, the findings also confirmed that the hydrogen bond and van der Waals force were responsible for forming the nisoldipine-BSA complex and the complexation process was a spontaneous exothermic process.Communicated by Ramaswamy H. Sarma

Details

Language :
English
ISSN :
07391102 and 15380254
Volume :
42
Issue :
12
Database :
Supplemental Index
Journal :
Journal of Biomolecular Structure and Dynamics
Publication Type :
Periodical
Accession number :
ejs66742028
Full Text :
https://doi.org/10.1080/07391102.2023.2232027