Membrane Fission: The Biogenesis of Transport Carriers
- 7 July 2012
- journal article
- review article
- Published by Annual Reviews in Annual Review of Biochemistry
- Vol. 81 (1), 407-427
- https://doi.org/10.1146/annurev-biochem-051710-094912
Abstract
Membrane-bound transport carriers are used to transfer cargo between membranes of the secretory and the endocytic pathways. The generation of these carriers can be classified into three steps: segregation of cargo away from the residents of a donor compartment (cargo sorting), generation of membrane curvature commensurate with the size of the cargo (membrane budding or tubulation), and finally separation of the nascent carrier from the donor membrane by a scission or membrane fission event. This review summarizes advances in our understanding of some of the best-characterized proteins required for the membrane fission that separates a transport carrier from its progenitor compartment: the large GTPase dynamin, the small guanine nucleotide-binding (G) proteins of the Arf family, BAR (Bin-amphiphysin-Rvs) domain proteins, and protein kinase D. These proteins share their ability to insert into membranes and oligomerize to create the large curvatures; however, the overall process of fission that involves these proteins appears to be quite different.Keywords
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