Abstract
The Nedd8 ubiquitin-like protein modification pathway regulates cell-cycle progression. Our analysis of Nedd8 requirements during Caenorhabditis elegans embryogenesis indicates that the cytoskeleton is another target. Nedd8 conjugation negatively regulated contractility of the microfilament-rich cell cortex during pronuclear migration and again during cytokinesis. The Nedd8 pathway also was required after meiosis to negatively regulate katanin, a microtubule-severing complex, permitting the assembly of a large mitotic spindle. We propose that Nedd8-modified cullin, as part of an E3 ubiquitin ligase complex, targets katanin for degradation during the transition from meiosis to mitosis.
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- We thank S. Schneider for phylogenetic analysis of RFL-1; P. Mains Y. Bobinnec S. Strome and A. Severson for providing antibodies; J. Austin and C. Malone for providing GFP lines; Y. Kohara (National Institute of Genetics Mishima Japan) and E. Kipreos for providing cDNA clones; the C. elegans Genetics Center funded by the NIH National Center for Research Resources for providing strains; C. Doe A. Severson and D. Williams for helpful discussions and comments on the manuscript; and V. Hemleben U. Zentgraf (University of Tübingen Germany) and U. Brügge (Ludwig-Wilhelm-Gymnasium Rastatt Germany) for their help and teaching. T.K. was supported by a predoctoral fellowship from the American Heart Association; L.P. by a long-term fellowship from the Federation of European Biochemical Societies; J.H.W. by an NIH Molecular Biology Training Grant; D.R.H. by a postdoctoral fellowship from the American Cancer Society; P.G. and M.P. by the Swiss National Science Foundation; and B.B. was supported by the NIH (R01GM58017).
Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 27, 2002, 5:35 a.m.) |
Deposited | 1 year, 7 months ago (Jan. 9, 2024, 5:25 p.m.) |
Indexed | 2 months ago (July 2, 2025, 2:31 p.m.) |
Issued | 23 years, 6 months ago (Feb. 15, 2002) |
Published | 23 years, 6 months ago (Feb. 15, 2002) |
Published Print | 23 years, 6 months ago (Feb. 15, 2002) |
@article{Kurz_2002, title={Cytoskeletal Regulation by the Nedd8 Ubiquitin-Like Protein Modification Pathway}, volume={295}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1067765}, DOI={10.1126/science.1067765}, number={5558}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Kurz, Thimo and Pintard, Lionel and Willis, John H. and Hamill, Danielle R. and Gönczy, Pierre and Peter, Matthias and Bowerman, Bruce}, year={2002}, month=feb, pages={1294–1298} }