| Literature DB >> 11459825 |
C M Pfleger1, A Salic, E Lee, M W Kirschner.
Abstract
Exit from mitosis requires the degradation of regulatory proteins including the mitotic cyclins and securin through ubiquitination by the anaphase promoting complex (APC) bound to Cdc20 or Cdh1. Cdc20-APC is regulated through inhibition by the spindle assembly checkpoint protein MAD2. Knowledge of Cdh1-APC regulation is limited to the phosphorylation-dependent dissociation of Cdh1 from APC. We report a novel means of regulating Cdh1 by the MAD2-related gene, MAD2L2. MAD2L2 specifically binds and inhibits Cdh1-APC, paralleling the effect of MAD2 on Cdc20. We suggest that MAD2L2 and MAD2 inhibit the release of substrates from APC and propose a mechanism of inhibition.Entities:
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Year: 2001 PMID: 11459825 PMCID: PMC312740 DOI: 10.1101/gad.897901
Source DB: PubMed Journal: Genes Dev ISSN: 0890-9369 Impact factor: 11.361