Exorcising the exocyst complex.

Exorcising the exocyst complex.
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DOI:
10.1111/j.1600-0854.2012.01353.x
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发表时间:
2012-07
期刊:
Traffic (Copenhagen, Denmark)
影响因子:
--
通讯作者:
Munson M
Munson M
中科院分区:
其他
文献类型:
--
作者:
Heider MR;Munson M

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外囊复合体是一种进化上保守的多亚单位蛋白质复合体,参与将分泌小泡连接到质膜上。最初是在二十年前在萌芽酵母中发现的,自那以后,使用几种不同的真核系统进行的研究在确定八个胞囊亚基的总体结构和组织方面取得了很大进展。研究指出,该复合体通过其亚基之间的大量蛋白质和脂类相互作用,作为时空调节因子发挥着关键作用,尽管对胞囊功能的分子理解一直是一个具有挑战性的问题。最近的进展表明,除了胞吐作用之外,胞囊对于额外的贩运步骤和细胞过程也很重要,与发育和疾病有关。在这篇综述中,我们讨论了有关胞囊结构、组装、调控及其在多种细胞转运途径中的作用的最新知识。
The exocyst complex is an evolutionarily conserved multisubunit protein complex implicated in tethering secretory vesicles to the plasma membrane. Originally identified two decades ago in budding yeast, investigations using several different eukaryotic systems have since made great progress toward determination of the overall structure and organization of the eight exocyst subunits. Studies point to a critical role for the complex as a spatiotemporal regulator through the numerous protein and lipid interactions of its subunits, although a molecular understanding of exocyst function has been challenging to elucidate. Recent progress demonstrates that the exocyst is also important for additional trafficking steps and cellular processes beyond exocytosis, with links to development and disease. In this review, we discuss current knowledge of exocyst architecture, assembly, regulation and its roles in a variety of cellular trafficking pathways.
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