Academic Journal
Enhancement of proteasome activity by a small-molecule inhibitor of USP14
| العنوان: | Enhancement of proteasome activity by a small-molecule inhibitor of USP14 |
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| المؤلفون: | Lee, Byung-Hoon, Lee, Min Jae, Park, Soyeon, Oh, Dong-Chan, Elsasser, Suzanne, Chen, Ping-Chung, Gartner, Carlos, Dimova, Nevena, Hanna, John, Gygi, Steven P., Wilson, Scott M., King, Randall W., Finley, Daniel |
| المساهمون: | Oh, Dong-Chan |
| بيانات النشر: | Nature Publishing Group |
| سنة النشر: | 2017 |
| المجموعة: | Seoul National University: S-Space |
| مصطلحات موضوعية: | DEUBIQUITINATING ENZYME USP14, 26S PROTEASOME, ATAXIA MICE, UBIQUITIN, DEGRADATION, PROTEINS, SUBUNIT, SURVIVAL, SYSTEM, STRESS |
| الوصف: | Proteasomes, the primary mediators of ubiquitin-protein conjugate degradation, are regulated through complex and poorly understood mechanisms. Here we show that USP14, a proteasome-associated deubiquitinating enzyme, can inhibit the degradation of ubiquitin-protein conjugates both in vitro and in cells. A catalytically inactive variant of USP14 has reduced inhibitory activity, indicating that inhibition is mediated by trimming of the ubiquitin chain on the substrate. A high-throughput screen identified a selective small-molecule inhibitor of the deubiquitinating activity of human USP14. Treatment of cultured cells with this compound enhanced degradation of several proteasome substrates that have been implicated in neurodegenerative disease. USP14 inhibition accelerated the degradation of oxidized proteins and enhanced resistance to oxidative stress. Enhancement of proteasome activity through inhibition of USP14 may offer a strategy to reduce the levels of aberrant proteins in cells under proteotoxic stress. ; N ; 1 |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| تدمد: | 0028-0836 |
| Relation: | Nature, Vol.467 No.7312, pp.179-183; https://hdl.handle.net/10371/208096; 000281616300028; 2-s2.0-77956527159; 2512 |
| DOI: | 10.1038/nature09299 |
| الاتاحة: | https://hdl.handle.net/10371/208096 https://doi.org/10.1038/nature09299 |
| رقم الانضمام: | edsbas.3208CCC8 |
| قاعدة البيانات: | BASE |
| تدمد: | 00280836 |
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| DOI: | 10.1038/nature09299 |