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Journal of Cell Science, Vol 87, Issue 5 705-712, Copyright © 1987 by Company of Biologists
JOURNAL ARTICLES |
C Jessus, C Thibier and R Ozon
Laboratoire de Physiologie de la Reproduction, UA-CNRS 555, Universite Pierre et Marie Curie, Paris, France.
The total level of tubulin and the ratio of polymeric tubulin to tubulin dimer were measured by a colchicine filter-binding assay during meiotic maturation of the Xenopus oocyte. Although the total level of tubulin remains unchanged (0.12 +/- 0.03 micrograms/oocyte), the level of polymeric tubulin decreases during maturation (25% in prophase oocytes versus 20% in metaphase oocytes). The percentage of polymerized tubulin was estimated after drug (nocodazole and taxol) treatments and cold treatment in prophase and progesterone-matured oocytes; in all cases the microtubules present in mature oocyte are less stable than prophase microtubules. The presence of the nucleus modifies neither the level nor the stability of prophase microtubules. Our quantitative results as well as cytological arguments suggest that full-grown Xenopus oocytes may contain a cortical microtubular array.
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  Y. Zhao, O. Haccard, R. Wang, J. Yu, J. Kuang, C. Jessus, and M. L. Goldberg Roles of Greatwall Kinase in the Regulation of Cdc25 Phosphatase Mol. Biol. Cell, April 1, 2008; 19(4): 1317 - 1327. [Abstract] [Full Text] [PDF]
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 A. Karaiskou, A.-C. Lepretre, G. Pahlavan, D. Du Pasquier, R. Ozon, and C. Jessus Polo-like kinase confers MPF autoamplification competence to growing Xenopus oocytes Development, April 1, 2004; 131(7): 1543 - 1552. [Abstract] [Full Text] [PDF]
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 G. Maton, C. Thibier, A. Castro, T. Lorca, C. Prigent, and C. Jessus Cdc2-Cyclin B Triggers H3 Kinase Activation of Aurora-A in Xenopus Oocytes J. Biol. Chem., June 6, 2003; 278(24): 21439 - 21449. [Abstract] [Full Text] [PDF]
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V. De Smedt, R. Poulhe, X. Cayla, F. Dessauge, A. Karaiskou, C. Jessus, and R. Ozon Thr-161 Phosphorylation of Monomeric Cdc2. REGULATION BY PROTEIN PHOSPHATASE 2C IN XENOPUS OOCYTES J. Biol. Chem., August 2, 2002; 277(32): 28592 - 28600. [Abstract] [Full Text] [PDF]
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 M Frank-Vaillant, O Haccard, C Thibier, R Ozon, Y Arlot-Bonnemains, C Prigent, and C Jessus Progesterone regulates the accumulation and the activation of Eg2 kinase in Xenopus oocytes J. Cell Sci., January 4, 2000; 113(7): 1127 - 1138. [Abstract] [PDF]
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M. Frank-Vaillant, C. Jessus, R. Ozon, J. L. Maller, and O. Haccard Two Distinct Mechanisms Control the Accumulation of Cyclin B1 and Mos in Xenopus Oocytes in Response to Progesterone Mol. Biol. Cell, October 1, 1999; 10(10): 3279 - 3288. [Abstract] [Full Text]
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A Karaiskou, C Jessus, T Brassac, and R Ozon Phosphatase 2A and polo kinase, two antagonistic regulators of cdc25 activation and MPF auto-amplification J. Cell Sci., January 11, 1999; 112(21): 3747 - 3756. [Abstract] [PDF]
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 K Galaktionov, C Jessus, and D Beach Raf1 interaction with Cdc25 phosphatase ties mitogenic signal transduction to cell cycle activation. Genes & Dev., May 1, 1995; 9(9): 1046 - 1058. [Abstract] [PDF]
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