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  • Title: The Mad2-Binding Protein p31comet as a Potential Target for Human Cancer Therapy.
    Author: Henriques AC, Silva PMA, Sarmento B, Bousbaa H.
    Journal: Curr Cancer Drug Targets; 2021; 21(5):401-415. PubMed ID: 33511944.
    Abstract:
    The spindle assembly checkpoint (SAC) is a surveillance mechanism that prevents mitotic exit at the metaphase-to-anaphase transition until all chromosomes have established correct bipolar attachment to spindle microtubules. Activation of SAC relies on the assembly of the mitotic checkpoint complex (MCC), which requires conformational change from inactive open Mad2 (OMad2) to the active closed Mad2 (C-Mad2) at unattached kinetochores. The Mad2-binding protein p31comet plays a key role in controlling timely mitotic exit by promoting SAC silencing, through preventing Mad2 activation and promoting MCC disassembly. Besides, increasing evidences highlight the p31comet potential as target for cancer therapy. Here, we provide an updated overview of the functional significance of p31comet in mitotic progression, and discuss the potential of deregulated expression of p31comet in cancer and in therapeutic strategies.
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