Self-organization of core Golgi material is independent of COPII ER-exit
نویسندگان
چکیده
منابع مشابه
COPII and COPI traffic at the ER-Golgi interface.
Protein traffic is necessary to maintain homeostasis in all eukaryotic organisms. All newly synthesized secretory proteins destined to the secretory and endolysosmal systems are transported from the endoplasmic reticulum to the Golgi before delivery to their final destinations. Here, we describe the COPII and COPI coating machineries that generate carrier vesicles and the tethers and SNAREs tha...
متن کاملStructural organization of the ER–Golgi interface
In the last eighteen months, it has become clear that some classes of proteins are actively recruited into endoplasmic reticulum export carriers, whereas others are exported as bulkflow cargo. Subsequent transport to the Golgi is mediated by tubulovesicular membranes. The anterograde membrane flow is compensated for by a retrograde pathway, which, in addition to the recycling of membrane and pr...
متن کاملContact of cis-Golgi with ER exit sites executes cargo capture and delivery from the ER
Protein transport from the endoplasmic reticulum (ER) to the Golgi apparatus is mediated by coat complex II (COPII) vesicles. It has been believed that COPII vesicles containing cargo are released from the ER exit sites (ERES) into the cytosol and then reach and fuse with the first post-ER compartment, cis-Golgi or ER-to-Golgi intermediate compartment (ERGIC). However, it still remains elusive ...
متن کاملInsights into structural and regulatory roles of Sec16 in COPII vesicle formation at ER exit sites
COPII-coated buds are formed at endoplasmic reticulum exit sites (ERES) to mediate ER-to-Golgi transport. Sec16 is an essential factor in ERES formation, as well as in COPII-mediated traffic in vivo. Sec16 interacts with multiple COPII proteins, although the functional significance of these interactions remains unknown. Here we present evidence that full-length Sec16 plays an important role in ...
متن کاملRab41 Is a Novel Regulator of Golgi Apparatus Organization That Is Needed for ER-To-Golgi Trafficking and Cell Growth
BACKGROUND The 60(+) members of the mammalian Rab protein family group into subfamilies postulated to share common functionality. The Rab VI subfamily contains 5 Rab proteins, Rab6a/a', Rab6b, Rab6c and Rab41. High-level knockdown of Rab6a/a' has little effect on the tightly organized Golgi ribbon in HeLa cells as seen by fluorescence microscopy. In striking contrast, we found Rab41 was strongl...
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ژورنال
عنوان ژورنال: Journal of Cell Science
سال: 2015
ISSN: 1477-9137,0021-9533
DOI: 10.1242/jcs.154443