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高尔基复合体顺面的进入和输出机制。

Entry and exit mechanisms at the cis-face of the Golgi complex.

机构信息

Department of Biochemistry, Dartmouth Medical School, Hanover, New Hampshire 03755, USA.

出版信息

Cold Spring Harb Perspect Biol. 2011 Jul 1;3(7):a005207. doi: 10.1101/cshperspect.a005207.

Abstract

Vesicular transport of protein and lipid cargo from the endoplasmic reticulum (ER) to cis-Golgi compartments depends on coat protein complexes, Rab GTPases, tethering factors, and membrane fusion catalysts. ER-derived vesicles deliver cargo to an ER-Golgi intermediate compartment (ERGIC) that then fuses with and/or matures into cis-Golgi compartments. The forward transport pathway to cis-Golgi compartments is balanced by a retrograde directed pathway that recycles transport machinery back to the ER. How trafficking through the ERGIC and cis-Golgi is coordinated to maintain organelle structure and function is poorly understood and highlights central questions regarding trafficking routes and organization of the early secretory pathway.

摘要

蛋白质和脂类货物从内质网 (ER) 到顺面高尔基体隔室的囊泡运输依赖于衣壳蛋白复合物、Rab GTPases、 tethering 因子和膜融合催化剂。ER 来源的囊泡将货物运送到内质网-高尔基体中间区室 (ERGIC),然后与顺面高尔基体隔室融合和/或成熟。顺面高尔基体隔室的正向运输途径由逆行定向途径平衡,该途径将运输机制再循环回 ER。ERGIC 和顺面高尔基体之间的运输如何协调以维持细胞器的结构和功能尚不清楚,这突显了有关运输途径和早期分泌途径组织的核心问题。

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Organization of SNAREs within the Golgi stack.内质网中 SNARE 的组织。
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The golgin coiled-coil proteins of the Golgi apparatus.高尔基体卷曲螺旋蛋白。
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Arf GAPs: gatekeepers of vesicle generation.Arf GAPs:囊泡生成的守门员。
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