Skp1p and the F-box protein Rcy1p form a non-SCF complex involved in recycling of the SNARE Snc1p in yeast.

Détails

ID Serval
serval:BIB_20751
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Skp1p and the F-box protein Rcy1p form a non-SCF complex involved in recycling of the SNARE Snc1p in yeast.
Périodique
Molecular and Cellular Biology
Auteur⸱e⸱s
Galan J.M., Wiederkehr A., Seol J.H., Haguenauer-Tsapis R., Deshaies R.J., Riezman H., Peter M.
ISSN
0270-7306
Statut éditorial
Publié
Date de publication
2001
Volume
21
Numéro
9
Pages
3105-3117
Langue
anglais
Notes
Publication types: Journal Article
Résumé
Skp1p-cullin-F-box protein (SCF) complexes are ubiquitin-ligases composed of a core complex including Skp1p, Cdc53p, Hrt1p, the E2 enzyme Cdc34p, and one of multiple F-box proteins which are thought to provide substrate specificity to the complex. Here we show that the F-box protein Rcy1p is required for recycling of the v-SNARE Snc1p in Saccharomyces cerevisiae. Rcy1p localized to areas of polarized growth, and this polarized localization required its CAAX box and an intact actin cytoskeleton. Rcy1p interacted with Skp1p in vivo in an F-box-dependent manner, and both deletion of its F box and loss of Skp1p function impaired recycling. In contrast, cells deficient in Cdc53p, Hrt1p, or Cdc34p did not exhibit recycling defects. Unlike the case for F-box proteins that are known to participate in SCF complexes, degradation of Rcy1p required neither its F box nor functional 26S proteasomes or other SCF core subunits. Importantly, Skp1p was the only major partner that copurified with Rcy1p. Our results thus suggest that a complex composed of Rcy1p and Skp1p but not other SCF components may play a direct role in recycling of internalized proteins.
Mots-clé
Binding Sites, DNA-Binding Proteins/genetics, DNA-Binding Proteins/metabolism, F-Box Proteins, Fungal Proteins/metabolism, Green Fluorescent Proteins, Luminescent Proteins/genetics, Luminescent Proteins/metabolism, Membrane Proteins/genetics, Membrane Proteins/metabolism, Peptide Synthases/metabolism, R-SNARE Proteins, SKP Cullin F-Box Protein Ligases, Saccharomyces cerevisiae/genetics, Saccharomyces cerevisiae/metabolism, Saccharomyces cerevisiae Proteins
Pubmed
Web of science
Open Access
Oui
Création de la notice
19/11/2007 13:15
Dernière modification de la notice
20/08/2019 13:56
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