Chem. J. Chinese Universities ›› 2018, Vol. 39 ›› Issue (11): 2507.doi: 10.7503/cjcu20180447

• Physical Chemistry • Previous Articles     Next Articles

Spectral Characterization of the Interaction Between Methamphetamine and Serum Albumin

WANG Yan1, CHEN Ping1,*(), WANG Yunfei1, LIU Guiying2,*(), YANG Xi2, SU Ying2, LI Junyang1, LIU Weiwei1, LIN Lie1   

  1. 1. Institute of Modern Optics, College of Electronic Information and Optical Engineering,Nankai University, Tianjin 300350, China
    2. Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
  • Received:2018-06-19 Online:2018-11-10 Published:2018-08-31
  • Contact: CHEN Ping,LIU Guiying E-mail:chping@nankai.edu.cn;liugvying@126.com
  • Supported by:
    † Supported by the Tianjin Municipal Science and Technology Commission, China(Nos.15ZCZDGX00250, 08ZCDFGX09400) and the Open Fund of State Key Laboratory of Luminescence and Applications of Changchun Institute of Optics, Fine Mehcanics and Physics Chinese Academy of Sciences, China.

Abstract:

The fluorescence spectroscopy technique and molecular docking method were used to research the interaction between methamphetamine and bovine serum albumin (BSA). Firstly, the fluorescence spectra of BSA and BSA containing methamphetamine were studied, and experimental results show that methamphetamine leads to the fluorescence quenching of BSA. On this basis, the molecular dynamics between methamphetamine and BSA was simulated by the molecular docking method, and the results indicate that the methamphetamine probably interact with BSA in tryptophan and phenylalanine residues through electrostatic forces. Therefore, the interactions between methamphetamine and tryptophan, phenylalanine were studied, respectively. Results from the fluorescence spectroscopy indicate that methamphetamine leads to the fluorescence quenching of tryptophan, phenylalanine, respectively. Given the above, we can conclude that the methamphetamine bind with BSA through electrostatic forces, and the binding sites are tryptophan and phenylalanine residues.

Key words: Methamphetamine, Serum albumin, Fluorescence spectroscopy, Molecular docking

CLC Number: 

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