Yanagida T, Esaki S, Iwane A H, Inoue Y, Ishijima A, Kitamura K, Tanaka H, Tokunaga M
Exploratory Research for Advanced Technology, Japan Science and Technology Corporation, Mino, Osaka.
Philos Trans R Soc Lond B Biol Sci. 2000 Apr 29;355(1396):441-7. doi: 10.1098/rstb.2000.0585.
Recent progress in single-molecule detection techniques is remarkable. These techniques have allowed the accurate determination of myosin-head-induced displacements and how mechanical cycles are coupled to ATP hydrolysis, by measuring individual mechanical events and chemical events of actomyosin directly at the single-molecule level. Here we review our recent work in which we have made detailed measurements of myosin step size and mechanochemical coupling, and propose a model of the myosin motor.
单分子检测技术最近取得了显著进展。这些技术通过在单分子水平直接测量肌动球蛋白的单个机械事件和化学事件,使得准确测定肌球蛋白头部引起的位移以及机械循环与ATP水解的耦合方式成为可能。在此,我们回顾我们最近的工作,其中我们对肌球蛋白步长和机械化学耦合进行了详细测量,并提出了一个肌球蛋白马达模型。