USP11 regulates p53 stability by deubiquitinating p53

The p53 tumor suppressor protein coordinates the cellular responses to a broad range of cellular stresses, leading to DNA repair, cell cycle arrest or apoptosis. The stability of p53 is essential for its tumor suppressor function, which is tightly controlled by ubiquitin-dependent degradation primarily through its negative regulator murine double minute 2 (Mdm2). To better understand the regulation of p53, we tested the interaction between p53 and USP11 using co-immunoprecipitation. The results show that USP11, an ubiquitin-specific protease, forms specific complexes with p53 and stabilizes p53 by deubiquitinating it. Moreover, down-regulation of USP11 dramatically attenuated p53 induction in response to DNA damage stress. These findings reveal that USP11 is a novel regulator of p53, which is required for p53 activation in response to DNA damage.

Medienart:

E-Artikel

Erscheinungsjahr:

2014

Erschienen:

2014

Enthalten in:

Zur Gesamtaufnahme - volume:15

Enthalten in:

Journal of Zhejiang University. Science. B - 15(2014), 12 vom: 04. Dez., Seite 1032-8

Sprache:

Englisch

Beteiligte Personen:

Ke, Jia-ying [VerfasserIn]
Dai, Cong-jie [VerfasserIn]
Wu, Wen-lin [VerfasserIn]
Gao, Jin-hua [VerfasserIn]
Xia, Ai-juan [VerfasserIn]
Liu, Guang-ping [VerfasserIn]
Lv, Kao-sheng [VerfasserIn]
Wu, Chun-lin [VerfasserIn]

Links:

Volltext

Themen:

98600C0908
Cycloheximide
Deubiquitination
EC 2.3.2.27
EC 3.1.2.-
Journal Article
MDM2 protein, human
P53
Proto-Oncogene Proteins c-mdm2
Research Support, Non-U.S. Gov't
Stability
TP53 protein, human
Thiolester Hydrolases
Tumor Suppressor Protein p53
USP11
USP11 protein, human
Ubiquitin

Anmerkungen:

Date Completed 18.08.2015

Date Revised 02.04.2019

published: Print

Citation Status MEDLINE

doi:

10.1631/jzus.B1400180

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM244256551