The Interaction between Aptamer and Beclomethasone Based on High Resolution Mass Spectrometry and Molecular Docking
10.13865/j.cnki.cjbmb.2021.03.1034
- Author:
Hong-Li FAN
1
;
Su-Ya LI
1
;
Ya-Xiong LIU
2
;
Zhuo-Ya LUO
2
;
Wen-Jie ZENG
3
Author Information
1. College of Traditinal Chinese Medicine, Guangzhou University of Chinese Medicine
2. NMPA Key Laboratory for Rapid Testing Technology of Drugs, Guangdong Institute for Drugs Control
3. College of Pharmacy, Guangzhou Medical University
- Publication Type:Journal Article
- Keywords:
aptamer;
beclomethasone;
high-resolution fourier transform ion cyclotron resonance mass spectrometer (FT-MS);
molecular docking simulation
- From:
Chinese Journal of Biochemistry and Molecular Biology
2021;37(5):636-643
- CountryChina
- Language:Chinese
-
Abstract:
Beclomethasone is an effective glucocorticoid, and beclomethasone-aptamer is a short single-stranded DNA with affinity and specificity to beclomethasone. The interaction between them is still unclear. The study of the interaction between aptamers and beclomethasone has a certain significance for the application of aptamers. In this study, high-resolution Fourier transform ion cyclotron resonance mass spectrometer (FT-MS) and molecular docking simulation technology were used to study the interaction between aptamer and beclomethasone. Firstly, under the optimized conditions of high-resolution mass spectrometry parameters, the complex of aptamer and beclomethasone was detected by the negative ion scanning mode with the electrospray ion source. Based on the results of high-resolution mass spectrometry, most of the compounds were -8-valent ions, and their dissociation constant K
