OTUD5 regulates p53 stability by deubiquitinating p53.
OTUD5 regulates p53 stability by deubiquitinating p53.
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OTUD5 通过去泛素化 p53 来调节 p53 稳定性
DOI:
10.1371/journal.pone.0077682
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Zhou X
中科院分区:
文献类型:
--
作者:
Luo J;Lu Z;Lu X;Chen L;Cao J;Zhang S;Ling Y;Zhou X
Background The p53 tumour suppressor protein is a transcription factor that prevents oncogenic progression by activating the expression of apoptosis and cell-cycle arrest genes in stressed cells. The stability of p53 is tightly regulated by ubiquitin-dependent degradation, driven mainly by its negative regulators ubiquitin ligase MDM2. Principal Findings In this study, we have identified OTUD5 as a DUB that interacts with and deubiquitinates p53. OTUD5 forms a direct complex with p53 and controls level of ubiquitination. The function of OTUD5 is required to allow the rapid activation of p53-dependent transcription and a p53-dependent apoptosis in response to DNA damage stress. Conclusions As a novel deubiquitinating enzyme for p53, OTUD5 is required for the stabilization and the activation of a p53 response.
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