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Membrane remodeling and organization: Elements common to prokaryotes and eukaryotes.

Luz A Vega-Cabrera1, Liliana Pardo-López1

  • 1Instituto de Biotecnología, Universidad Nacional Autónoma de México, Apdo. Postal 510-3, Cuernavaca, Morelos, México.

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Summary

Prokaryotic homologs of eukaryotic membrane remodeling proteins, involved in endocytosis, are found in bacteria. These proteins may represent an ancient system that evolved into complex eukaryotic networks.

Keywords:
Bacillus subtilisactinarrestincytoskeletondynaminflotillinmembrane elementstubulin

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Area of Science:

  • Cell Biology
  • Molecular Biology
  • Evolutionary Biology

Background:

  • Eukaryotic membrane remodeling, crucial for endocytosis and intracellular trafficking, involves numerous proteins.
  • These processes facilitate cellular communication, nutrient exchange, and cargo transport within eukaryotic cells.

Purpose of the Study:

  • To review bacterial homologs of eukaryotic cytoskeletal and membrane-organizing proteins.
  • To explore the potential ancestral role of these proteins in prokaryotes.

Main Methods:

  • Literature review of recent studies on bacterial homologs of eukaryotic membrane remodeling proteins.
  • Analysis of identified bacterial proteins and their known functions.

Main Results:

  • Some molecular machinery regulating eukaryotic endocytosis is present in bacteria.
  • Bacterial homologs participate in cell division, sporulation, and signal transduction.

Conclusions:

  • Bacterial cytoskeletal and membrane-organizing proteins may represent an ancestral membrane organization system.
  • This ancient system likely evolved into the complex regulatory networks found in eukaryotes.