吉林大学学报(理学版) ›› 2022, Vol. 60 ›› Issue (5): 1202-1208.

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大豆中一种富含半胱氨酸蛋白性质的分子动力学模拟

李洋1, 王科飞1, 胡海燕1, 王志超1, 李延春2   

  1. 1. 吉林工商学院 工学院, 长春 130507; 
    2. 吉林大学 化学学院理论化学研究所, 长春 130021
  • 收稿日期:2021-11-18 出版日期:2022-09-26 发布日期:2022-09-26
  • 通讯作者: 李洋 E-mail:liyang18866@hotmail.com

Molecular Dynamics Simulation of Properties  of Cystein-Rich Protein from Soybean

LI Yang1, WANG Kefei1, HU Haiyan1, WANG Zhichao1, LI Yanchun2   

  1. 1.  School of Technology,  Jilin Business and Technology College,   Changchun 130507,   China; 2.  Institute of Theoretical Chemistry,  College of Chemistry,  Jilin University,  Changchun 130021, China
  • Received:2021-11-18 Online:2022-09-26 Published:2022-09-26

摘要: 利用基于OPLS-AA(optimized potentials for liquid simulations all atom)力场的分子动力学(molecular dynamics,  MD)方法研究大豆中富含半胱氨酸蛋白的疏水性质以及蛋白与溶剂间的弱相互作用,  并从热力学和动力学方面研究该蛋白在不同λ下的自由能变化规律.  结果表明, 半胱氨酸对蛋白的性质具有决定性影响, 溶剂主要影响蛋白的构象.  

关键词:  , 大豆, 富含半胱氨酸蛋白, 分子动力学, 自由能

Abstract: We used molecular dynamics (MD) method based on OPLS-AA (optimized potentials for liquid simulations all atom) force field to investigate the hydrophobic properties of cysteine-rich protein from soybean and  the weak interactions between protein and solvent,  and   studied  the free energy changes of the protein at different λ from the aspects of  thermodynamics and  dynamics. The results show that the cysteine has a decisive effect on the protein properties,  and the solvent  mainly affects  the protein conformations. 

Key words: soybean,  , cysteine-rich protein,  , molecular dynamics,  , free energy

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