Emi1 preferentially inhibits ubiquitin chain elongation by the anaphase-promoting complex
نویسندگان
چکیده
منابع مشابه
UBE2S drives elongation of K11-linked ubiquitin chains by the anaphase-promoting complex.
The Anaphase-Promoting Complex (APC) is an E3 ubiquitin ligase that regulates mitosis and G1 by sequentially targeting cell-cycle regulators for ubiquitination and proteasomal degradation. The mechanism of ubiquitin chain formation by APC and the resultant chain topology remains controversial. By using a single-lysine APC substrate to dissect the topology of ubiquitinated substrates, we find th...
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The anaphase-promoting complex/cyclosome (APC/C) inhibitor Emi1 controls progression to S phase and mitosis by stabilizing key APC/C ubiquitination substrates, including cyclin A. Examining Emi1 binding proteins, we identified the Evi5 oncogene as a regulator of Emi1 accumulation. Evi5 antagonizes SCF(betaTrCP)-dependent Emi1 ubiquitination and destruction by binding to a site adjacent to Emi1'...
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The anaphase-promoting complex (APC/C) orchestrates progression through mitosis by decorating cell-cycle regulators with ubiquitin chains. To nucleate chains, the APC/C links ubiquitin to a lysine in substrates, but to elongate chains it modifies lysine residues in attached ubiquitin moieties. The mechanism enabling the APC/C, and ubiquitin ligases in general, to switch from lysine residues in ...
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ژورنال
عنوان ژورنال: Nature Cell Biology
سال: 2013
ISSN: 1465-7392,1476-4679
DOI: 10.1038/ncb2755