کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1411676 1501875 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spectroscopic investigation on the interaction of salidroside with bovine serum albumin
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Spectroscopic investigation on the interaction of salidroside with bovine serum albumin
چکیده انگلیسی

This study is designed to examine the interaction of salidroside with bovine serum albumin (BSA) under physiological conditions with drug concentrations in the range of 1.67–20.0 μM. Spectroscopic analysis of the emission quenching at different temperatures has revealed that the quenching mechanism of salidroside with BSA is static quenching mechanism. The calculated distance r between salidroside and the protein is evaluated according to the theory of Forster energy transfer. The results of FTIR, CD, synchronous fluorescence spectra and UV–vis absorption spectra experiment show that the secondary structures of the protein has been changed in the presence of salidroside. The thermodynamic parameters, enthalpy change (ΔH0) and entropy change (ΔS0) are calculated to be −50.50 kJ mol−1 and −59.13 J mol−1 K−1according to van’t Hoff equation, which indicate that the hydrogen bonds and van der Waals forces are the intermolecular force stabilizing the complex. The effects of common ions on the binding constants of BSA–salidroside complexes were also investigated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 889, Issues 1–3, 29 October 2008, Pages 20–27
نویسندگان
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