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首页> 外文期刊>Biophysical Chemistry: An International Journal Devoted to the Physical Chemistry of Biological Phenomena >Force dependence of unbinding rate of kinesin motor during its processive movement on microtubule
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Force dependence of unbinding rate of kinesin motor during its processive movement on microtubule

机译:在微管中的加工运动过程中,在微管期间力依赖性依赖性依赖性

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摘要

Kinesin is a biological molecular motor that can move continuously on microtubule until it unbinds. Here, we studied computationally the force dependence of the unbinding rate of the motor. Our results showed that while the unbinding rate under the forward load has the expected characteristic of "slip bond", with the unbinding rate increasing monotonically with the increase of the forward load, the unbinding rate under the backward load shows counterintuitive characteristic of "slip-catch-slip bond": as the backward load increases, the unbinding rate increases exponentially firstly, then drops rapidly and then increases again. Our calculated data are in agreement with the available single-molecule data from different research groups. The mechanism of the slip-catch-slip bond was revealed.
机译:Kinesin是一种生物分子电机,可以在微管上连续移动,直至其取消突出。 在这里,我们在计算上研究了电动机的解除速率的力依赖性。 我们的研究结果表明,虽然前向负荷下的取消率具有“滑移键”的预期特征,但随着前进载荷的增加,倒置率随着向前负荷的增加而增加,落后载荷下的解除率显示了“滑动”的反向特性 捕捉粘合键“:随着后向负荷增加,取消矛盾率首先呈指数递增,然后迅速下降,然后再次增加。 我们计算的数据与来自不同研究组的可用单分子数据一致。 揭示了防滑夹键的机理。

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