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Annexins in membrane traffic.

J Gruenberg1, N Emans

  • 1European Molecular Biology Laboratory, Meyerhofstrasse 1, D-6900 Heidelberg, Germany.

Trends in Cell Biology
|July 1, 1993
PubMed
Summary

Annexins, proteins involved in membrane fusion, are now implicated in endocytosis. This suggests annexins may broadly regulate membrane trafficking throughout the cell.

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Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Annexins are a family of calcium-dependent phospholipid-binding proteins.
  • Previously, annexins were primarily associated with exocytosis and membrane fusion.
  • Their precise roles in other membrane trafficking events remained unclear.

Purpose of the Study:

  • To investigate the role of annexins in the endocytic pathway.
  • To explore the potential of annexins as universal regulators of membrane trafficking.

Main Methods:

  • Review of recent experimental observations.
  • Analysis of annexin involvement in distinct endocytic steps.

Main Results:

  • Evidence suggests annexins participate in multiple stages of endocytosis.
  • Annexins may facilitate membrane interactions crucial for endocytic vesicle formation and trafficking.

Conclusions:

  • Annexins are implicated in both exocytosis and endocytosis.
  • Annexins likely serve as versatile modulators of diverse membrane trafficking processes.

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