Role of Rab GTPases in membrane traffic and cell physiology.

Role of Rab GTPases in membrane traffic and cell physiology.
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RAB GTPases在膜交通和细胞生理学中的作用。

DOI:
10.1152/physrev.00059.2009
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发表时间:
2011-01
影响因子:
33.6
通讯作者:
Novick PJ
Novick PJ
中科院分区:
医学1区
文献类型:
--
作者:
Hutagalung AH;Novick PJ

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细胞内膜运输定义了一个复杂的网络,连接许多真核细胞的膜结合细胞器的途径。虽然每种途径都由其自身的一组因子控制,但它们都含有作为主调节因子的Rab GTP酶。在这篇综述中,我们讨论了如何Rabs可以调节几乎所有的步骤,从形成的运输囊泡在供体膜的膜交通在靶膜融合。Rabs所执行的许多调节功能中的一些包括与选择货物的不同效应蛋白相互作用,促进囊泡运动,以及验证融合的正确位点。我们描述级联机制,可以定义方向性的交通,并确保不同的Rabs不重叠的途径,他们调节。在这篇综述中,我们强调了Rab功能障碍如何导致从传染病到癌症的各种疾病状态。
Intracellular membrane traffic defines a complex network of pathways that connects many of the membrane-bound organelles of eukaryotic cells. Although each pathway is governed by its own set of factors, they all contain Rab GTPases that serve as master regulators. In this review, we discuss how Rabs can regulate virtually all steps of membrane traffic from the formation of the transport vesicle at the donor membrane to its fusion at the target membrane. Some of the many regulatory functions performed by Rabs include interacting with diverse effector proteins that select cargo, promoting vesicle movement, and verifying the correct site of fusion. We describe cascade mechanisms that may define directionality in traffic and ensure that different Rabs do not overlap in the pathways that they regulate. Throughout this review we highlight how Rab dysfunction leads to a variety of disease states ranging from infectious diseases to cancer.
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期刊: The Journal of cell biology
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