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  2. Mad1 - Wikipedia

    en.wikipedia.org/wiki/Mad1

    A spindle assembly checkpoint monitors the status of the spindle and links the metaphase-anaphase transition to proper bipolar attachment of all kinetochores to the mitotic spindle. The spindle assembly checkpoint inhibits the activity of the anaphase promoting complex by preventing degradation of downstream effectors, which otherwise lead to ...

  3. Spindle checkpoint - Wikipedia

    en.wikipedia.org/wiki/Spindle_checkpoint

    The spindle checkpoint, also known as the metaphase-to-anaphase transition, the spindle assembly checkpoint (SAC), the metaphase checkpoint, or the mitotic checkpoint, is a cell cycle checkpoint during metaphase of mitosis or meiosis that prevents the separation of the duplicated chromosomes until each chromosome is properly attached to the ...

  4. Checkpoint inhibitor - Wikipedia

    en.wikipedia.org/wiki/Checkpoint_inhibitor

    Checkpoint inhibitor therapy is a form of cancer immunotherapy. The therapy targets immune checkpoints , key regulators of the immune system that when stimulated can dampen the immune response to an immunologic stimulus.

  5. Anaphase-promoting complex - Wikipedia

    en.wikipedia.org/wiki/Anaphase-promoting_complex

    When kinetochores are unattached to spindles, mitotic checkpoint complexes (MCC) and inhibit APC. In the absence of Apc15, MCCs and Cdc20 remain locked on the APC/C preventing its activity once the spindle checkpoint requirements are met. Apc15 mediates the turnover of Cdc20 and MCCs to provide information on the attachment state of ...

  6. Mad2 - Wikipedia

    en.wikipedia.org/wiki/MAD2

    The spindle checkpoint system is a regulatory system that restrains progression through the metaphase-to-anaphase transition. The Mad2 gene was first identified in the yeast S. cerevisiae in a screen for genes which when mutated would confer sensitivity to microtubule poisons. [ 1 ]

  7. Cell cycle checkpoint - Wikipedia

    en.wikipedia.org/wiki/Cell_cycle_checkpoint

    The G 2-M checkpoint occurs between the G 2 and M phases. The spindle checkpoint occurs during the M phase. Key cyclins associated with each phase are shown. Cell cycle checkpoints are control mechanisms in the eukaryotic cell cycle which ensure its proper progression.