Article
An inhibitor of a deubiquitinating enzyme regulates ubiquitin homeostasis.
Cell - 1 May 2009
Kimura Yoko, Yashiroda Hideki, Kudo Tai, Koitabashi Sumiko, Murata Shigeo, Kakizuka Akira, Tanaka Keiji
Abstract excerpt
The dynamic and reversible process of ubiquitin modification controls various cellular activities. Ubiquitin exists as monomers, unanchored chains, or protein-conjugated forms, but the regulation of these interconversions remains largely unknown. Here, we identified a protein designated Rfu1 (regulator of free ubiquitin chains 1), which regulates intracellular concentrations of monomeric ubiquitins and free...
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