Single molecule measurements and molecular motors

Single molecule measurements and molecular motors
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单分子测量和分子马达

DOI:
10.1098/rstb.2008.2265
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发表时间:
2008
期刊:
Philosophical Transactions of the Royal Society B: Biological Sciences
影响因子:
--
通讯作者:
Y. Ishii
Y. Ishii
中科院分区:
--
文献类型:
--
作者:
T. Yanagida;M. Iwaki;Y. Ishii

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单分子成像和操纵是描述分子机器(如分子发动机)运行的有力工具。单分子测量允许测量单个生物分子的动态行为。在本文中,我们描述了我们如何开发单分子测量,以了解分子马达的机制。已经确定了与ATP水解的单个循环相关的分子马达的步进运动。对热涨落具有灵敏度的单分子测量揭示了热布朗运动参与分子马达的步进运动。在不同的发动机中已经提出了几种机制来将随机热运动偏置为定向运动。
Single molecule imaging and manipulation are powerful tools in describing the operations of molecular machines like molecular motors. The single molecule measurements allow a dynamic behaviour of individual biomolecules to be measured. In this paper, we describe how we have developed single molecule measurements to understand the mechanism of molecular motors. The step movement of molecular motors associated with a single cycle of ATP hydrolysis has been identified. The single molecule measurements that have sensitivity to monitor thermal fluctuation have revealed that thermal Brownian motion is involved in the step movement of molecular motors. Several mechanisms have been suggested in different motors to bias random thermal motion to directional movement.
肌球蛋白步长:在体外测定中测量每个 ATP 水解的单位位移。
DOI: 10.1073/pnas.87.18.7130
发表时间: 1990
影响因子: 11.1
作者:
Toyoshima,YY;Kron,SJ;Spudich,JA
通讯作者: Spudich,JA
DOI: 10.1073/pnas.83.17.6272
发表时间: 1986-09-01
影响因子: 11.1
作者:
KRON, SJ;SPUDICH, JA
通讯作者: SPUDICH, JA