Nuclear Functions of Nucleolin through Global Proteomics and Interactomic Approaches - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Journal of Proteome Research Année : 2016

Nuclear Functions of Nucleolin through Global Proteomics and Interactomic Approaches

Résumé

Nucleolin (NCL) is a major component of the cell nucleolus, which has the ability to rapidly shuttle to several other cells' compartments. NCL plays important roles in a variety of essential functions, among which are ribosome biogenesis, gene expression, and cell growth. However, the precise mechanisms underlying NCL functions are still unclear. Our study aimed to provide new information on NCL functions via the identification of its nuclear interacting partners. Using an interactomics approach, we identified 140 proteins co-purified with NCL, among which 100 of them were specifically found to be associated with NCL after RNase digestion. The functional classification of these proteins confirmed the prominent role of NCL in ribosome biogenesis and additionally revealed the possible involvement of nuclear NCL in several pre-mRNA processing pathways through its interaction with RNA helicases and proteins participating in pre-mRNA splicing, transport, or stability. NCL knockdown experiments revealed that NCL regulates the localization of EXOSC10 and the amount of ZC3HAV1, two components of the RNA exosome, further suggesting its involvement in the control of mRNA stability. Altogether, this study describes the first nuclear interactome of human NCL and provides the basis for further understanding the mechanisms underlying the essential functions of this nucleolar protein

Domaines

Cancer
Fichier non déposé

Dates et versions

hal-01800011 , version 1 (25-05-2018)

Identifiants

Citer

Anna Salvetti, Yohann Couté, Alberto Epstein, Loredana Arata, Alexandra Kraut, et al.. Nuclear Functions of Nucleolin through Global Proteomics and Interactomic Approaches. Journal of Proteome Research, 2016, 15 (5), pp.1659-1669. ⟨10.1021/acs.jproteome.6b00126⟩. ⟨hal-01800011⟩
89 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More