The nuclear pore complex has entered the atomic age.

The nuclear pore complex has entered the atomic age.
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DOI:
10.1016/j.str.2009.07.014
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发表时间:
2009-09-09
期刊:
Structure (London, England : 1993)
影响因子:
--
通讯作者:
Schwartz TU
Schwartz TU
中科院分区:
其他
文献类型:
--
作者:
Brohawn SG;Partridge JR;Whittle JR;Schwartz TU

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核孔复合物(NPCs)在核包膜上穿孔,是真核细胞进出细胞核的唯一通道。除了其基本的运输功能外,NPC的组成部分在核组织和基因调控中具有重要的直接作用。由于其在细胞生物学中的核心作用,在原子分辨率上确定NPC结构具有相当大的意义。几十年来,这些大型40-60 MDa蛋白组装的复杂性限制了这种结构研究。最近,利用NPC的固有模块性,结构生物学家正在从分子细节上理解这种纳米机器。已经解决了马厩、NPC建筑脚手架的积木结构,并提出了不同的组装模型。在这里,我们回顾了该领域的现状,并列出了挑战和下一步的步骤,以全面了解原子分辨率的NPC。
Nuclear pore complexes (NPCs) perforate the nuclear envelope and represent the exclusive passageway into and out of the nucleus of the eukaryotic cell. Apart from their essential transport function, components of the NPC have important, direct roles in nuclear organization and in gene regulation. Due to its central role in cell biology, it is of considerable interest to determine the NPC structure at atomic resolution. The complexity of these large, 40-60 MDa protein assemblies has for decades limited such structural studies. More recently, exploiting the intrinsic modularity of the NPC, structural biologists are making progress toward understanding this nanomachine in molecular detail. Structures of building blocks of the stable, architectural scaffold of the NPC have been solved, and distinct models for their assembly proposed. Here we review the status of the field and lay out the challenges and the next steps toward a full understanding of the NPC at atomic resolution.
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