Abstract
Rer1p, a yeast Golgi membrane protein, is required for the retrieval of a set of endoplasmic reticulum (ER) membrane proteins. We present the first evidence that Rer1p directly interacts with the transmembrane domain (TMD) of Sec12p which contains a retrieval signal. A green fluorescent protein (GFP) fusion of Rer1p rapidly cycles between the Golgi and the ER. Either a lesion of coatomer or deletion of the COOH-terminal tail of Rer1p causes its mislocalization to the vacuole. The COOH-terminal Rer1p tail interacts in vitro with a coatomer complex containing α and γ subunits. These findings not only give the proof that Rer1p is a novel type of retrieval receptor recognizing the TMD in the Golgi but also indicate that coatomer actively regulates the function and localization of Rer1p.
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Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 26, 2002, 12:46 p.m.) |
Deposited | 2 years, 1 month ago (July 22, 2023, 7:39 a.m.) |
Indexed | 11 months, 4 weeks ago (Sept. 8, 2024, 7:41 a.m.) |
Issued | 24 years, 6 months ago (March 5, 2001) |
Published | 24 years, 6 months ago (March 5, 2001) |
Published Online | 24 years, 6 months ago (March 5, 2001) |
Published Print | 24 years, 6 months ago (March 5, 2001) |
@article{Sato_2001, title={Rer1p, a Retrieval Receptor for Endoplasmic Reticulum Membrane Proteins, Is Dynamically Localized to the Golgi Apparatus by Coatomer}, volume={152}, ISSN={1540-8140}, url={http://dx.doi.org/10.1083/jcb.152.5.935}, DOI={10.1083/jcb.152.5.935}, number={5}, journal={The Journal of Cell Biology}, publisher={Rockefeller University Press}, author={Sato, Ken and Sato, Miyuki and Nakano, Akihiko}, year={2001}, month=mar, pages={935–944} }