Post-translational modifications of tubulin and the dynamics of microtubules in mouse oocytes and zygotes |
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Authors: | H de Pennart E Houliston B Maro |
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Affiliation: | Institut Jacques Monod, Unité 257 de l'I.N.S.E.R.M., Université Paris, France. |
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Abstract: | The distribution of post-translationally modified forms of tubulin has been studied in mouse oocytes arrested in meiotic metaphase II and in interphase eggs after fertilisation. Tyrosinated and acetylated microtubules are present in the meiotic spindle but detyrosinated ones are not. Acetylation only occurs in the most stable subpopulation of microtubules in the spindles ("pole to kinetochore"). After fertilisation, many microtubules of the interphase array become acetylated, but detyrosination occurs only at a very low level. |
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