Related Experiment Videos

Determination of the protofilament number in microtubules by templates

W Vater1, K J Böhm, P Steinmetzer

  • 1Central Institute of Microbiology and Experimental Therapy, Academy of Sciences of the GDR, Jena.

Acta Histochemica. Supplementband
|January 1, 1990
PubMed

Insights

Fragmented microtubules (MTs) and double-walled microtubules (dwMTs) were used as templates. The protofilament number of newly formed MTs matched the templates, confirming template-directed assembly.

Area of Science:

  • Cell Biology
  • Biochemistry
  • Structural Biology

Background:

  • Microtubules (MTs) are essential cytoskeletal components.
  • The protofilament number of MTs can vary.
  • Understanding MT assembly is crucial for cell function.

Purpose of the Study:

  • To investigate the role of templates in determining microtubule protofilament number.
  • To examine if fragmented and double-walled microtubules serve as effective templates.

Main Methods:

  • Utilized phosphocellulose-purified tubulin for microtubule formation.
  • Employed fragmented microtubules (MTs) and double-walled microtubules (dwMTs) as templates.
  • Analyzed the protofilament number of nucleated MTs.

Main Results:

  • Nucleated MTs consistently exhibited a mean protofilament number matching their respective templates.
  • Both fragmented MTs and dwMTs successfully directed the protofilament number of newly formed MTs.
  • Results align with prior observations on template-directed MT assembly.

Conclusions:

  • Microtubule templates dictate the protofilament number of newly formed structures.
  • This finding reinforces the principle of template-mediated self-assembly in microtubule formation.
  • The study confirms the templating role of MTs and dwMTs in protofilament number determination.

Related Concept Videos