XB-ART-24814
Cell
1991 May 31;655:825-36. doi: 10.1016/0092-8674(91)90390-k.
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Gamma-tubulin is a highly conserved component of the centrosome.
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We have cloned and characterized gamma-tubulin genes from both X. laevis and S. pombe, and partial genes from maize, diatom, and a budding yeast. The proteins encoded by these genes are very similar to each other and to the original Aspergillus protein, indicating that gamma-tubulins are an ubiquitous and highly conserved subfamily of the tubulin family. A null mutation of the S. pombe gene is lethal. gamma-tubulin is a minor protein, present at less than 1% the level of alpha- and beta-tubulin, and is limited to the centrosome. In particular, gamma-tubulin is associated with the pericentriolar material, the microtubule-nucleating material of the centrosome. gamma-Tubulin remains associated with the centrosome when microtubules are depolymerized, suggesting that it is an integral component that might play a role in microtubule organization.
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Species referenced: Xenopus laevis
Genes referenced: tubg1