Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
Microtubule polymerization is initiated by γ-tubulin containing complexes. Petry and Vale discuss factors involved in localizing and activating γ-tubulin at different locations in the cell.
