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.
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Petry, S., Vale, R. Microtubule nucleation at the centrosome and beyond. Nat Cell Biol 17, 1089–1093 (2015). https://doi.org/10.1038/ncb3220
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DOI: https://doi.org/10.1038/ncb3220
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