Journal
ANNUAL REVIEW OF CELL AND DEVELOPMENTAL BIOLOGY
Volume 20, Issue -, Pages 87-123Publisher
ANNUAL REVIEWS
DOI: 10.1146/annurev.cellbio.20.010403.105307
Keywords
vesicle transport; COPI; COPII; coat proteins; cargo selection
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The endoplasmic reticulum (ER) and the Golgi comprise the first two steps in protein secretion. Vesicular carriers mediate a continuous flux of proteins and lipids between these compartments, reflecting the transport of newly synthesized proteins out of the ER and the retrieval of escaped ER residents and vesicle machinery. Anterograde and retrograde transport is mediated by distinct sets of cytosolic coat proteins, the COPII and COPI coats, respectively, which act on the membrane to capture cargo proteins into nascent vesicles. We review the mechanisms that govern coat recruitment to the membrane, cargo capture into a transport vesicle, and accurate delivery to the target organelle.
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