Mutations linked to neurological disease enhance self-association of low-complexity protein sequences.

Mutations linked to neurological disease enhance self-association of low-complexity protein sequences.
复制标题

DOI:
10.1126/science.abn5582
复制
发表时间:
2022-07
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
--
中科院分区:
其他
文献类型:
--
作者:

文献摘要

参考文献

相似文献

低序列复杂性的蛋白质结构域不会折叠成稳定的三维结构。然而,具有这些序列的蛋白质有助于细胞组织的许多方面,包括不被膜包围的细胞核和细胞质结构的组装。这些细胞组装体的动态性质追溯到低复杂性(LC)结构域经由不稳定的交叉β结构瞬时自缔合的能力。在过去的十年里,对LC结构域自结合研究有用的机制研究以简单的相分离分析的形式发展。在这里,我们已经使用这样的测定来证明,负责LC结构域自缔合的相互作用可以由不稳定的蛋白质结构决定,该蛋白质结构接近于折叠和未折叠状态之间的平衡。我们进一步表明,导致腓骨肌萎缩症和额颞叶痴呆/阿尔茨海默病的错义突变通过增强LC结构域自缔合后形成的不稳定分子结构的稳定性来表现其病理生理学。
Protein domains of low sequence complexity do not fold into stable, three-dimensional structures. Nevertheless, proteins with these sequences assist in many aspects of cell organization including assembly of nuclear and cytoplasmic structures not surrounded by membranes. The dynamic nature of these cellular assemblies traces to the ability of low complexity (LC) domains to transiently self-associate via labile, cross-β structures. Mechanistic studies useful for the study of LC domain self-association have evolved over the past decade in the form of simple assays of phase separation. Here we have used such assays to demonstrate that the interactions responsible for LC domain self-association can be dictated by labile protein structures poised close to equilibrium between the folded and unfolded states. We further show that missense mutations causative of Charcot-Marie-Tooth disease and frontotemporal dementia/Alzheimer’s disease manifest their pathophysiology by enhancing the stability of otherwise labile molecular structures formed upon LC domain self-association.
DOI: 10.1371/journal.pbio.1002338
发表时间: 2016-01
期刊: PLoS biology
影响因子: 9.8
作者:
Lim L;Wei Y;Lu Y;Song J
通讯作者: Song J
低复杂性蛋白段的原子结构揭示了组装网络的扭结β薄片。
DOI: 10.1126/science.aan6398
发表时间: 2018-02-09
期刊: Science (New York, N.Y.)
影响因子: --
作者:
Hughes MP;Sawaya MR;Boyer DR;Goldschmidt L;Rodriguez JA;Cascio D;Chong L;Gonen T;Eisenberg DS
通讯作者: Eisenberg DS
DOI: 10.1038/s41467-021-21912-y
发表时间: 2021-03-12
影响因子: 16.6
作者:
Li Q;Babinchak WM;Surewicz WK
通讯作者: Surewicz WK
DOI: 10.1021/ja9930317
发表时间: 1999-12-15
影响因子: 15
作者:
An, SSA;Lester, CC;Scheraga, HA
通讯作者: Scheraga, HA
DOI: 10.1038/s41594-019-0248-4
发表时间: 2019-07-01
影响因子: 16.8
作者:
Cao, Qin;Boyer, David R.;Eisenberg, David S.
通讯作者: Eisenberg, David S.