Intermediate filament mechanics in vitro and in the cell: from coiled coils to filaments, fibers and networks.

Intermediate filament mechanics in vitro and in the cell: from coiled coils to filaments, fibers and networks.
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体外和细胞中的中间细丝力学:从盘绕线圈到丝,纤维和网络。

DOI:
10.1016/j.ceb.2015.01.001
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发表时间:
2015-02
影响因子:
7.5
通讯作者:
Herrmann H
Herrmann H
中科院分区:
生物学2区
文献类型:
--
作者:
Köster S;Weitz DA;Goldman RD;Aebi U;Herrmann H

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中间丝蛋白在后生动物细胞的细胞质和细胞核中形成丝、纤维和网络。它们的一般结构构建计划适应高度变化的氨基酸序列,以产生高度保守设计的延伸的二聚体α-螺旋卷曲螺旋。这些“棒状”颗粒是内在柔性的丝状结构的基本构建块,其能够抵抗高机械应力,即在体外和细胞中相当程度的弯曲和拉伸。生物物理学和计算机建模研究正在开始展开详细的结构和力学的见解,这些主要的超分子组装的细胞架构,不仅在“试管”,而且在细胞和组织的背景下。
Intermediate filament proteins form filaments, fibers and networks both in the cytoplasm and the nucleus of metazoan cells. Their general structural building plan accommodates highly varying amino acid sequences to yield extended dimeric α-helical coiled coils of highly conserved design. These “rod” particles are the basic building blocks of intrinsically flexible, filamentous structures that are able to resist high mechanical stresses, i.e. bending and stretching to a considerable degree, both in vitro and in the cell. Biophysical and computer modeling studies are beginning to unfold detailed structural and mechanical insights into these major supramolecular assemblies of cell architecture, not only in the “test tube” but also in the cellular and tissue context.
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