Induced fit, conformational selection and independent dynamic segments: an extended view of binding events.

Induced fit, conformational selection and independent dynamic segments: an extended view of binding events.
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DOI:
10.1016/j.tibs.2010.04.009
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发表时间:
2010-10
影响因子:
13.8
通讯作者:
Nussinov, Ruth
Nussinov, Ruth
中科院分区:
生物学1区
文献类型:
--
作者:
Csermely, Peter;Palotai, Robin;Nussinov, Ruth

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蛋白质动力学的单分子和NMR测量越来越多地揭示了结合场景的复杂性。在这里,我们描述了一个扩展的构象选择模型,其中包括一个剧目的选择和调整过程。诱导契合可以被看作是这一全集的一个子集,其贡献受到稳定相互作用的键类型和相互作用伙伴之间的差异的影响。我们认为,蛋白质片段的动力学是不同的蛋白质的其余部分(“离散呼吸”)可以管理构象转变和变构传播,伴随着结合过程,因此可能是更敏感的突变事件。此外,我们强调绑定场景的动态复杂性,因为它们涉及到聚合和信令等事件,以及拥挤的蜂窝环境。
Single molecule and NMR measurements of protein dynamics increasingly uncover the complexity of binding scenarios. Here we describe an extended conformational selection model which embraces a repertoire of selection and adjustment processes. Induced fit can be viewed as a subset of this repertoire, whose contribution is affected by the bond-types stabilizing the interaction and the differences between the interacting partners. We argue that protein segments whose dynamics are distinct from the rest of the protein (‘discrete breathers’) can govern conformational transitions and allosteric propagation that accompany binding processes, and as such might be more sensitive to mutational events. Additionally, we highlight the dynamic complexity of binding scenarios as they relate to events such as aggregation and signalling, and the crowded cellular environment.
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