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Related Experiment Videos

Protein export from the nucleus.

B Ossareh-Nazari1, C Gwizdek, C Dargemont

  • 1Institut Jacques Monod, UMR 7592, CNRS, Université Paris VI, Université Paris VII, 2 Place Jussieu, 75251 Paris, France.

Traffic (Copenhagen, Denmark)
|September 29, 2001
PubMed
Summary

Eukaryotic cells control molecule transport between the nucleus and cytoplasm for genetic integrity and gene expression. This review details protein nuclear export mechanisms, focusing on exportins and Ran GTPase.

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Molecular and cellular biology·2001

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Genetics

Background:

  • The eukaryotic nucleus evolved to necessitate strict control over molecular exchange with the cytoplasm.
  • This control is vital for protecting genetic information and coordinating cellular functions.
  • Nucleocytoplasmic transport regulation is key to adapting gene expression to environmental changes.

Purpose of the Study:

  • To review the molecular mechanisms of protein nuclear export.
  • To emphasize the roles of export receptors, nuclear pore proteins, and Ran GTPase.

Main Methods:

  • Review of recent scientific literature on nucleocytoplasmic transport.
  • Focus on molecular interactions governing protein export.

Main Results:

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  • Protein nuclear export relies on specific targeting sequences, exportins, and nuclear pore proteins.
  • The Ran GTPase and associated proteins play a crucial role in this process.
  • Regulation of nucleocytoplasmic distribution adapts gene expression.

Conclusions:

  • Understanding protein nuclear export is essential for comprehending eukaryotic cell function.
  • Ran GTPase-mediated pathways are central to regulating gene expression via nucleocytoplasmic transport.