Random hydrolysis controls the dynamic instability of microtubules.

Random hydrolysis controls the dynamic instability of microtubules.
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随机水解控制微管的动态不稳定性。

DOI:
10.1016/j.bpj.2011.12.059
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发表时间:
2011
影响因子:
3.4
通讯作者:
D. Lacoste
D. Lacoste
中科院分区:
生物学3区
文献类型:
--
作者:
R. Padinhateeri;A. Kolomeisky;D. Lacoste

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提出了一个描述微管动力学并明确考虑相关生化过程的简单随机模型。该模型结合了单体的结合和解结合以及聚合物内部磷酸盐的随机释放。结果表明,这种理论方法提供了微管动态不稳定现象的微观图像。帽大小、突变时间的浓度依赖性和稀释后观察突变前的延迟可以通过这种方法以直接和简单的方式定量预测。此外,该模型可以在很大程度上进行解析求解,从而为更精细的微管动力学研究提供了有价值的起点。
A simple stochastic model which describes microtubule dynamics and explicitly takes into account the relevant biochemical processes is presented. The model incorporates binding and unbinding of monomers and random phosphate release inside the polymer. It is shown that this theoretical approach provides a microscopic picture of the dynamic instability phenomena of microtubules. The cap size, the concentration dependence of the catastrophe times and the delay before observing catastrophes following a dilution can be quantitatively predicted by this approach in a direct and simple way. Furthermore, the model can be solved analytically to a large extend, thus offering a valuable starting point for more refined studies of microtubules dynamics.
稀释诱导的微管解体:与动态不稳定性和 GTP 帽的关系。
DOI: 10.1002/cm.970180106
发表时间: 1991
影响因子: --
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