Article ; Online: The C-terminus of the cargo receptor Erv14 affects COPII vesicle formation and cargo delivery.
2023 Volume 136, Issue 3
Abstract: ... site (S134) at the C-terminus of Erv14. Mimicking phosphorylation of S134 (S134D) prevents ...
Abstract | The endoplasmic reticulum (ER) is the start site of the secretory pathway, where newly synthesized secreted and membrane proteins are packaged into COPII vesicles through direct interaction with the COPII coat or aided by specific cargo receptors. Little is known about how post-translational modification events regulate packaging of cargo into COPII vesicles. The Saccharomyces cerevisiae protein Erv14, also known as cornichon, belongs to a conserved family of cargo receptors required for the selection and ER export of transmembrane proteins. In this work, we show the importance of a phosphorylation consensus site (S134) at the C-terminus of Erv14. Mimicking phosphorylation of S134 (S134D) prevents the incorporation of Erv14 into COPII vesicles, delays cell growth, exacerbates growth of sec mutants, modifies ER structure and affects localization of several plasma membrane transporters. In contrast, the dephosphorylated mimic (S134A) had less deleterious effects, but still modifies ER structure and slows cell growth. Our results suggest that a possible cycle of phosphorylation and dephosphorylation is important for the correct functioning of Erv14. |
---|---|
MeSH term(s) | Saccharomyces cerevisiae Proteins/genetics ; Saccharomyces cerevisiae Proteins/metabolism ; Membrane Proteins/metabolism ; Carrier Proteins/metabolism ; Membrane Transport Proteins/metabolism ; Biological Transport ; COP-Coated Vesicles/metabolism ; Protein Transport |
Chemical Substances | Saccharomyces cerevisiae Proteins ; Membrane Proteins ; Carrier Proteins ; Membrane Transport Proteins |
Language | English |
Publishing date | 2023-02-06 |
Publishing country | England |
Document type | Journal Article ; Research Support, Non-U.S. Gov't |
ZDB-ID | 2993-2 |
ISSN | 1477-9137 ; 0021-9533 |
ISSN (online) | 1477-9137 |
ISSN | 0021-9533 |
DOI | 10.1242/jcs.260527 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
More links
Kategorien
In stock of ZB MED Cologne/Königswinter
Zs.A 1200: Show issues | Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular Jg. 1995 - 2021: Lesesall (1.OG) ab Jg. 2022: Lesesaal (EG) |
|||
Zs.MG 14: Show issues |
Order via subito
This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.