| 分子马达定向运动的合作机制 |
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| 引用本文： | 陈宏斌,郑志刚.分子马达定向运动的合作机制[J].上海理工大学学报,2012,34(1):6-13. |
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| 作者姓名： | 陈宏斌 郑志刚 |
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| 作者单位： | 1. 华侨大学信息科学与工程学院,厦门,361021
2. 北京师范大学物理学系,北京,100875 |
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| 基金项目： | 国家自然科学基金，教育部博士点基金，华侨大学高层次人才科研启动基金，北京师范大学自主科研基金创新群体资助项目 |
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| 摘 要： | 分子马达是当前生物学和物理学的前沿课题,其定向运动的动力学机制一直是科学家关注的焦点之一.生物体内的分子马达一般是很多个一起协同工作.相互作用与合作在分子马达集体行为中起了很大作用.本文概述了分子马达合作运动的现象和机制.为进一步阐述合作的意义,本文详细讨论了分子马达必须依靠合作才能实现定向输运的两种情况.第一种,分子马达通过合作,在过阻尼条件下克服不停闪烁的棘齿势,实现了定向运动.第二种,分子马达通过合作,可以将一个方向上输入的驱动能量转化到垂直方向上做功,并产生定向输运.
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| 关 键 词： | 分子马达 集体定向输运 合作 |
Cooperative Mechanism in Directed Motion of Molecular Motors |
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| CHEN Hong bin and ZHENG Zhi gang.Cooperative Mechanism in Directed Motion of Molecular Motors[J].Journal of University of Shanghai For Science and Technology,2012,34(1):6-13. |
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| Authors: | CHEN Hong bin and ZHENG Zhi gang |
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| Institution: | 1.College of Information Science and Engineering,Huaqiao University,Xiamen 361021,China; 2.Department of Physics,Beijing Normal University,Beijing 100875,China) |
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| Abstract: | Molecular motors are the frontier topic in biology and physics,and the dynamic mechanism of directed transport attracts much attention.In most cases,molecular motors operate in groups.The interaction and cooperation among motors play an important role in the collective behaviors of molecular motors.The behaviors and mechanism of collective transport of molecular motors are sketched out.Furthermore,two cases are detailedly discussed in which the cooperation among motors is needed for the implementation of directed transport.In the first case,the cooperation impels directed motion under overdamping condition.In the second case,through cooperation molecular motors can gain energy from driving in one direction and do work in the vertical direction,and then cause transversal drift. |
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| Keywords: | molecular motors collective directed transport cooperation |
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