Article
Multiple cargo binding sites on the COPII subunit Sec24p ensure capture of diverse membrane proteins into transport vesicles.
Cell - 22 Aug 2003
Miller Elizabeth A, Beilharz Traude H, Malkus Per N, Lee Marcus C S, Hamamoto Susan, Orci Lelio, Schekman Randy
Abstract excerpt
We have characterized the mechanisms of cargo selection into ER-derived vesicles by the COPII subunit Sec24p. We identified a site on Sec24p that recognizes the v-SNARE Bet1p and show that packaging of a number of cargo molecules is disrupted when mutations are introduced at this site. Surprisingly, cargo proteins affected by these mutations did not share a single common sorting signal, nor were proteins sharing...
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