Shedding light on protein folding landscapes by single-molecule fluorescence.

Shedding light on protein folding landscapes by single-molecule fluorescence.
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DOI:
10.1039/c3cs60311c
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发表时间:
2014-02-21
影响因子:
46.2
通讯作者:
Deniz AA
Deniz AA
中科院分区:
化学1区
文献类型:
--
作者:
Banerjee PR;Deniz AA

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在过去的十年中,单分子(SM)荧光方法在我们目前对蛋白质折叠和聚集景观的一些关键方面的理解中越来越重要。凭借无模型方法的优势和直接在异质结构系综中探测多个亚群和随机动力学的能力,SM方法已成为研究复杂系统的主要技术,如内在无序蛋白质(IDPs),未折叠盆地中的球状蛋白质和折叠过程中,以及淀粉样蛋白生成中蛋白质聚集的早期步骤。这篇综述强调了这些方法在研究单个蛋白质分子及其复合物的自由能景观,折叠特性和动力学方面的应用,重点是内在灵活的系统,如IDP。
Single-molecule (SM) fluorescence methods have been increasingly instrumental in our current understanding of a number of key aspects of protein folding and aggregation landscapes over the past decade. With the advantage of a model free approach and the power of probing multiple subpopulations and stochastic dynamics directly in a heterogeneous structural ensemble, SM methods have emerged as a principle technique for studying complex systems such as intrinsically disordered proteins (IDPs), globular proteins in the unfolded basin and during folding, and early steps of protein aggregation in amyloidogenesis. This review highlights the application of these methods in investigating the free energy landscapes, folding properties and dynamics of individual protein molecules and their complexes, with an emphasis on inherently flexible systems such as IDPs.
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