C Thibier

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A binding colchicine assay together with an immunostaining study with an anti-tubulin antibody showed that taxol, when added to the incubation medium, induces the formation of new microtubules in the Xenopus oocyte cortex. The capacity of the tubulin assembly in the submembranous cytoplasm decreases in progesterone-matured oocytes. In contrast, in(More)
An antibody directed against rat brain microtubule-associated protein 2 (MAP2) immunoprecipitated a protein of 240 kDa from a Xenopus oocyte extract. In contrast, in Xenopus brain extract, this antibody recognizes a protein of 280 kDa. The oocyte MAP2-related protein (called O-MAP) is present in both prophase I and metaphase II-blocked oocytes as(More)
An extensive array of microtubules has been shown to exist in the cortex of Xenopus laevis oocytes both at the prophase I and metaphase II stages. The cortical microtubules were visualized after the oocyte cortex was squashed and immunostained using anti-tubulin antibody. They are cold- and nocodazole-sensitive; their stability to both treatments decreases(More)
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