Cdc25A activity is required for the metaphase II arrest in mouse oocytes
نویسندگان
چکیده
منابع مشابه
Cdc25A activity is required for the metaphase II arrest in mouse oocytes.
Mammalian oocytes are arrested in metaphase of second meiosis (MII) until fertilization. This arrest is enforced by the cytostatic factor (CSF), which maintains the M-phase promoting factor (MPF) in a highly active state. Although the continuous synthesis and degradation of cyclin B to maintain the CSF-mediated MII arrest is well established, it is unknown whether cyclin-dependent kinase 1 (Cdk...
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The maintenance of meiotic prophase arrest in mouse oocytes within fully grown follicles, prior to the surge of luteinizing hormone (LH) that triggers meiotic resumption, depends on a high level of cAMP within the oocyte. cAMP is produced within the oocyte, at least in large part, by the G(s)-linked G-protein-coupled receptor, GPR3. Gpr3 is localized in the mouse oocyte but is also present thro...
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BACKGROUND The importance of mitotic spindle checkpoint control has been well established during somatic cell divisions. The metaphase-to-anaphase transition takes place only when all sister chromatids have been properly attached to the bipolar spindle and are aligned at the metaphase plate. Failure of this checkpoint may lead to unequal separation of sister chromatids. On the contrary, the exi...
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ژورنال
عنوان ژورنال: Journal of Cell Science
سال: 2013
ISSN: 1477-9137,0021-9533
DOI: 10.1242/jcs.115592