The glycine arginine-rich domain of the RNA-binding protein nucleolin regulates its subcellular localization

  • Ella Doron-Mandel
  • , Indrek Koppel
  • , Ofri Abraham
  • , Ida Rishal
  • , Terika P. Smith
  • , Courtney N. Buchanan
  • , Pabitra K. Sahoo
  • , Jan Kadlec
  • , Juan A. Oses-Prieto
  • , Riki Kawaguchi
  • , Stefanie Alber
  • , Eitan Erez Zahavi
  • , Pierluigi Di Matteo
  • , Agostina Di Pizio
  • , Didi Andreas Song
  • , Nataliya Okladnikov
  • , Dalia Gordon
  • , Shifra Ben-Dor
  • , Rebecca Haffner-Krausz
  • , Giovanni Coppola
  • Alma L. Burlingame, Pavel Jungwirth, Jeffery L. Twiss, Mike Fainzilber

Research output: Contribution to journalArticlepeer-review

Abstract

Nucleolin is a multifunctional RNA Binding Protein (RBP) with diverse subcellular localizations, including the nucleolus in all eukaryotic cells, the plasma membrane in tumor cells, and the axon in neurons. Here we show that the glycine arginine rich (GAR) domain of nucleolin drives subcellular localization via protein-protein interactions with a kinesin light chain. In addition, GAR sequences mediate plasma membrane interactions of nucleolin. Both these modalities are in addition to the already reported involvement of the GAR domain in liquid-liquid phase separation in the nucleolus. Nucleolin transport to axons requires the GAR domain, and heterozygous GAR deletion mice reveal reduced axonal localization of nucleolin cargo mRNAs and enhanced sensory neuron growth. Thus, the GAR domain governs axonal transport of a growth controlling RNA-RBP complex in neurons, and is a versatile localization determinant for different subcellular compartments. Localization determination by GAR domains may explain why GAR mutants in diverse RBPs are associated with neurodegenerative disease.

Original languageAmerican English
Article numbere107158
JournalEMBO Journal
Volume40
Issue number20
DOIs
StatePublished - Oct 18 2021
Externally publishedYes

ASJC Scopus subject areas

  • General Neuroscience
  • Molecular Biology
  • General Biochemistry, Genetics and Molecular Biology
  • General Immunology and Microbiology

Keywords

  • axonal transport
  • cell size regulation
  • local translation
  • protein–membrane interaction
  • subcellular localization

Fingerprint

Dive into the research topics of 'The glycine arginine-rich domain of the RNA-binding protein nucleolin regulates its subcellular localization'. Together they form a unique fingerprint.

Cite this