Enriching the pore: splendid complexity from humble origins.

Enriching the pore: splendid complexity from humble origins.
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DOI:
10.1111/tra.12141
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发表时间:
2014-02
期刊:
Traffic (Copenhagen, Denmark)
影响因子:
--
通讯作者:
Rout MP
Rout MP
中科院分区:
其他
文献类型:
--
作者:
Field MC;Koreny L;Rout MP

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细胞核是真核细胞的胞内细胞器,代表了区分真核和原核细胞形式的主要结构创新。包裹细胞核的核被膜(NE)的存在使得核内部的内容物与细胞质之间的交换机制成为必要,这是通过核孔复合物(NPC)介导的,核孔复合物是位于NE中的核孔中的大蛋白质组装体。最近的进展已经开始绘制NPC在多种生物中的结构和功能,并允许重建支持现代NPC形式的一些进化事件,突出了真核生物中常见和差异的NPC特征。在这里,我们讨论了一些这些进展和正在追求的问题,考虑如何演变的NPC已被约束,并最终提出了一个模型,如何核孔复合物演变。
The nucleus is the defining intracellular organelle of eukaryotic cells and represents a major structural innovation that differentiates the eukaryotic and prokaryotic cellular form. The presence of a nuclear envelope (NE) encapsulating the nucleus necessitates a mechanism for interchange between the contents of the nuclear interior and the cytoplasm, which is mediated via the nuclear pore complex (NPC), a large protein assembly residing in nuclear pores in the NE. Recent advances have begun to map the structure and functions of the NPC in multiple organisms, and to allow reconstruction of some of the evolutionary events that underpin the modern NPC form, highlighting common and differential NPC features across the eukaryotes. Here we discuss some of these advances and the questions being pursued, consider how the evolution of the NPC has been constrained, and finally propose a model for how the nuclear pore complex evolved.
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