Microtubulin

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Microtubulin is an important protein filament which is a major component of the cytoskeleton[1]. It is make up from globular tubulin dimers, which come together to form hollow cylinders which are 24nm in diameter[2]. Microtubulin has numerous functions, for example they have a vital role in cell division and protein movement around the cell.

Reference

  1. 2 W. H. Freeman and Company (2000).Molecular Cell Biology. 4th edition.Section 19.1 Microtubule Structures.
  2. David R. Caprette http://www.ruf.rice.edu/~bioslabs/studies/invertebrates/microtubules.html