Role of vesicle tethering factors in the ER-Golgi membrane traffic.

Role of vesicle tethering factors in the ER-Golgi membrane traffic.
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DOI:
10.1016/j.febslet.2009.10.083
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发表时间:
2009-12-03
期刊:
影响因子:
3.5
通讯作者:
Lupashin, Vladimir
Lupashin, Vladimir
中科院分区:
生物学3区
文献类型:
--
作者:
Sztul, Elizabeth;Lupashin, Vladimir

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系链是一组不同的松散相关的蛋白质和蛋白质复合体,根据结构和功能的相似性分为3个家族。拴系因子的一个被广泛接受的作用是运输载体在融合前最初附着到受体膜上。然而,越来越多的证据表明,系绳不仅仅是静态的桥梁。系链已被证明与融合机器的组件以及与囊泡形成有关的组件相互作用。属于这3个家族的系绳在交通的同一阶段起作用,这表明它们在囊泡系留过程中调节不同的事件。因此,需要多个系绳促进的事件来为囊泡融合提供选择性。在这篇综述中,我们重点介绍了支持这一模型的发现。
Tethers are a diverse group of loosely related proteins and protein complexes grouped into 3 families based on structural and functional similarities. A well-accepted role for tethering factors is the initial attachment of transport carriers to acceptor membranes prior to fusion. However, accumulating evidence indicates that tethers are more than static bridges. Tethers have been shown to interact with components of the fusion machinery and with components involved in vesicle formation. Tethers belonging to the 3 families act at the same stage of traffic, suggesting that they mediate distinct events during vesicle tethering. Thus, multiple tether-facilitated events are required to provide selectivity to vesicle fusion. In this review, we highlight findings that support this model.
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