Multiple degradation pathways regulate versatile CIP/KIP CDK inhibitors.
Multiple degradation pathways regulate versatile CIP/KIP CDK inhibitors.
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DOI:
10.1016/j.tcb.2011.10.004
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发表时间:
2012-01
影响因子:
19
通讯作者:
Kipreos, Edward T.
中科院分区:
文献类型:
--
作者:
Starostina, Natalia G.;Kipreos, Edward T.
The mammalian CIP/KIP family of cyclin-dependent kinase (CDK) inhibitors (CKIs) comprises three proteins – p21Cip1/WAF1, p27Kip1, and p57Kip2 – that bind and inhibit cyclin–CDK complexes, which are key regulators of the cell cycle. CIP/KIP CKIs have additional independent functions in regulating transcription, apoptosis and actin cytoskeletal dynamics. These divergent functions are performed in distinct cellular compartments and contribute to the seemingly contradictory observation that the CKIs can both suppress and promote cancer. Multiple ubiquitin ligases (E3s) direct the proteasome-mediated degradation of p21, p27 and p57. This review analyzes recent data highlighting our current understanding of how distinct E3 pathways regulate subpopulations of the CKIs to control their diverse functions.
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影响因子:
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