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Curr Opin Struct Biol. 2004 Apr;14(2):147-53.

A structural view of the COPII vesicle coat.

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Howard Hughes Medical Institute and the Structural Biology Program, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, New York 10021, USA.


The COPII vesicle coat coordinates the budding of transport vesicles from the endoplasmic reticulum in the initial step of the secretory pathway. The coat orchestrates a sequence of events including self-assembly on the membrane, cargo and SNARE molecule selection, and deformation of the membrane into a bud to drive vesicle fission. Recent molecular-level studies have helped to explain how the three components of yeast COPII - Sar1 GTPase, the Sec23/24 subcomplex and the Sec13/31 subcomplex - combine to organize this complex process.

[Indexed for MEDLINE]

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