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Tubulin post-translational modifications in protists - Tiny models for solving big questions.

Ewa Joachimiak1, Dorota Wloga1

  • 1Laboratory of Cytoskeleton and Cilia Biology, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland.

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PubMed
Summary

Protists exhibit diverse microtubule (MT) cytoskeleton structures, influenced by tubulin post-translational modifications (PTMs). Studying these PTMs in unicellular eukaryotes like protists reveals insights into MT function and enzyme discovery.

Keywords:
CiliaFlagellaMicrotubulePost-translational modificationsProtistsTubulin

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Area of Science:

  • Cell Biology
  • Eukaryotic Microbiology
  • Cytoskeletal Dynamics

Background:

  • Protists, diverse single-celled eukaryotes, display varied microtubule (MT) cytoskeleton organizations.
  • MT structures range from simple trafficking networks to complex motility apparatus like cilia and flagella.
  • Tubulin post-translational modifications (PTMs) significantly influence MT properties and functions.

Purpose of the Study:

  • To summarize current knowledge on tubulin PTMs in unicellular eukaryotes.
  • To highlight key findings regarding tubulin PTMs in protists as model organisms.
  • To underscore the role of PTMs in shaping diverse MT structures and functions.

Main Methods:

  • Review of existing literature on tubulin PTMs in protists.
  • Analysis of diverse protist models for studying tubulin modifications.
  • Comparative examination of conserved and lineage-specific tubulin PTMs.

Main Results:

  • Identified conserved tubulin PTMs (acetylation, detyrosination, (poly)glutamylation, (poly)glycylation) across protists.
  • Documented less common PTMs (phosphorylation, methylation, etc.) in specific protist lineages.
  • Established protists as valuable models for investigating tubulin PTMs and their associated enzymes.

Conclusions:

  • Tubulin PTMs are crucial for the diverse organization and function of protist cytoskeletons.
  • Protists offer unique advantages for dissecting the roles and regulation of tubulin PTMs.
  • Further research in protist models will advance understanding of cytoskeletal dynamics and evolution.