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  • Title: Behavior of cyclin B and cyclin B-dependent kinase during starfish oocyte meiosis reinitiation: evidence for non-identity with MPF.
    Author: Picard A, Peaucellier G.
    Journal: Biol Cell; 1998 Oct; 90(6-7):487-96. PubMed ID: 10084847.
    Abstract:
    We reconsider the notion of MPF initiation, which is generally viewed as the prerequisite production of a small cdc2-cyclin B kinase activity sufficient to trigger its own self-amplification. Using starfish oocytes as a tool, we show that H1 kinase activation is not explosive, but rather is a gradual process in both time and space. We show further that the production of even a large H1 kinase activity, either in MPF-microinjected or in hormone-stimulated oocytes, is not sufficient to trigger MPF amplification.
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