Identification of a functional docking site in the Rpn1 LRR domain for the UBA-UBL domain protein Ddi1
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چکیده
منابع مشابه
Transfer of Ho Endonuclease and Ufo1 to the Proteasome by the UbL-UbA Shuttle Protein, Ddi1, Analysed by Complex Formation In Vitro
The F-box protein, Ufo1, recruits Ho endonuclease to the SCF(Ufo1) complex for ubiquitylation. Both ubiquitylated Ho and Ufo1 are transferred by the UbL-UbA protein, Ddi1, to the 19S Regulatory Particle (RP) of the proteasome for degradation. The Ddi1-UbL domain binds Rpn1 of the 19S RP, the Ddi1-UbA domain binds ubiquitin chains on the degradation substrate. Here we used complex reconstitution...
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SCF complexes are E3 ubiquitin-protein ligases that mediate degradation of regulatory and signaling proteins and control G1/S cell cycle progression by degradation of G1 cyclins and the cyclin-dependent kinase inhibitor, Sic1. Interchangeable F-box proteins bind the core SCF components; each recruits a specific subset of substrates for ubiquitylation. The F-box proteins themselves are rapidly t...
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Different domains of the UBL-UBA ubiquitin receptor, Ddi1/Vsm1, are involved in its multiple cellular roles.
Ddi1/Vsm1 is an ubiquitin receptor involved in regulation of the cell cycle and late secretory pathway in Saccharomyces cerevisiae. Ddi1 possesses three domains: an NH(2)-terminal ubiquitin-like domain (UBL), a COOH-terminal ubiquitin-associated domain (UBA), and a retroviral aspartyl-protease domain (RVP). Here, we demonstrate the domains involved in homodimerization, checkpoint regulation, lo...
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ژورنال
عنوان ژورنال: BMC Biology
سال: 2011
ISSN: 1741-7007
DOI: 10.1186/1741-7007-9-33