A General Random Walk Model of Molecular Motor  

作　　者：WANGXian-Ju AIBao-Quan LIUGuo-Tao LIULiang-Gang 

机构地区：[1]DepartmentofPhysics,ZhongshanUniversity,Guangzhou510275,China

出　　处：《Communications in Theoretical Physics》2003年第2X期237-240,共4页理论物理通讯（英文版）

摘　　要：A general random walk model framework is presented which can be used to statistically describe the internal dynamics and external mechanical movement of molecular motors along filament track. The motion of molecular motor in a periodic potential and a constant force is considered. We show that the molecular motor's movement becomes slower with the potential barrier increasing, but if the force is increased, the molecular motor''s movement becomes faster. The relation between the effective rate constant and the potential battler's height, and that between the effective rate constant and the value of the force are discussed. Our results are consistent with the experiments and relevant theoretical consideration, and can be used to explain some physiological phenomena.

关 键 词：随机游动模型 分子电动机 有效速度参数 势垒 运动过程 

分 类 号：TM359.9[电气工程—电机] O561[理学—原子与分子物理]