LATS2-Ajuba complex regulates γ-tubulin recruitment to centrosomes and spindle organization during mitosis
نویسندگان
چکیده
منابع مشابه
FAM29A promotes microtubule amplification via recruitment of the NEDD1–γ-tubulin complex to the mitotic spindle
Microtubules (MTs) are nucleated from centrosomes and chromatin. In addition, MTs can be generated from preexiting MTs in a gamma-tubulin-dependent manner in yeast, plant, and Drosophila cells, although the underlying mechanism remains unknown. Here we show the spindle-associated protein FAM29A promotes MT-dependent MT amplification and is required for efficient chromosome congression and segre...
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A cold-sensitive gamma-tubulin allele of Aspergillus nidulans, mipAD159, causes defects in mitotic and cell cycle regulation at restrictive temperatures that are apparently independent of microtubule nucleation defects. Time-lapse microscopy of fluorescently tagged mitotic regulatory proteins reveals that cyclin B, cyclin-dependent kinase 1, and the Ancdc14 phosphatase fail to accumulate in a s...
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The nucleation of microtubules requires protein complexes containing gamma-tubulin, which are present in the cytoplasm and associate with the centrosome and with the mitotic spindle. We have previously shown that these interactions require the gamma-tubulin targeting factor GCP-WD/NEDD1, which has an essential role in spindle formation. The recruitment of additional gamma-tubulin to the centros...
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It has been claimed repeatedly that gamma-tubulin is exclusively localized at the spindle poles in mitotic animal cells, where it plays a role in microtubule nucleation. In addition to this localization, we have observed a gamma-tubulin-specific staining of the mitotic spindle in several animal cells (human, kangaroo rat, mouse, Chinese hamster, Xenopus and Drosophila) using five polyclonal ant...
متن کاملNEDD1-dependent recruitment of the γ-tubulin ring complex to the centrosome is necessary for centriole duplication and spindle assembly
The centrosome is the major microtubule organizing structure in somatic cells. Centrosomal microtubule nucleation depends on the protein gamma-tubulin. In mammals, gamma-tubulin associates with additional proteins into a large complex, the gamma-tubulin ring complex (gammaTuRC). We characterize NEDD1, a centrosomal protein that associates with gammaTuRCs. We show that the majority of gammaTuRCs...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 2006
ISSN: 0014-5793
DOI: 10.1016/j.febslet.2005.12.096