| Literature DB >> 25747386 |
Ryohei Shirozu1, Hideki Yashiroda1, Shigeo Murata2.
Abstract
The proteasome is an essential, 66-subunit protease that mediates ubiquitin-dependent proteolysis. The transcription factor Rpn4 regulates concerted expression of proteasome subunits to increase the proteasome by recognizing nonamer proteasome-associated control element (PACE) elements on the promoter regions. However, the genes for proteasome assembly chaperones and some of the subunits have no PACEs. Here we identified a minimal hexamer "PACE-core" sequence that responds to Rpn4. PACE-cores are found in many genes related to proteasome function including the assembly chaperones, but cannot substitute for PACE of the subunits. Our results add a new layer of complexity in transcriptional regulation of genes involved in protein degradation.Entities:
Keywords: Proteasome; Rpn4; Transcriptional regulation
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Year: 2015 PMID: 25747386 DOI: 10.1016/j.febslet.2015.02.025
Source DB: PubMed Journal: FEBS Lett ISSN: 0014-5793 Impact factor: 4.124