A spectroscopic insight into the interaction of chromene 1,2,4-oxadiazole-based compounds with bovine serum albumin
作者:Nilima Priyadarsini Mishra、Lakoji Satish、Seetaram Mohapatra、Sabita Nayak、Harekrushna Sahoo
DOI:10.1007/s11164-020-04323-4
日期:2021.3
2H-chromene-based 1,2,4-oxadiazole compounds (6a-6d) were studied for binding with bovine serum albumin (BSA) by different spectroscopic and thermodynamic analyses. A molecular docking program was used to find out the possible binding sites and binding affinity of 2H-chromene based 1,2,4-oxadiazole compounds with bovine serum albumin (BSA). The intrinsic fluorescence of BSA was quenched by these compounds through
通过不同的光谱和热力学分析,研究了四种合成的基于2 H-色烯的1,2,4-恶二唑化合物(6a-6d)与牛血清白蛋白(BSA)的结合。使用分子对接程序来发现基于2 H-色烯的1,2,4-恶二唑化合物与牛血清白蛋白(BSA)的可能结合位点和结合亲和力。这些化合物通过静态猝灭机理将BSA的固有荧光猝灭,估计的结合常数(K b)值为1.5×10 3 –10×10 3。通过圆二色性分析监测BSA的构象变化,并且观察到在这些化合物存在下BSA在结构上是稳定的。热力学结果表明,相互作用过程是自发的,恶二唑化合物与BSA之间的结合主要由氢键和范德华力驱动。这项研究将有助于了解基于恶二唑的化合物的生物学优势以及与生物分子相互作用的性质。 图形摘要