Suzanne Paz, John Hiscott  Immunity 

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CuRTAiling Interferon Regulatory Factor Signaling with the E3 Ligase RAUL  Suzanne Paz, John Hiscott  Immunity  Volume 33, Issue 6, Pages 833-835 (December 2010) DOI: 10.1016/j.immuni.2010.12.006 Copyright © 2010 Elsevier Inc. Terms and Conditions

Figure 1 Ubiquitination of IRFs by RAUL-RTA-HAUSP Upon recognition of PAMPs by their respective PRR, signal complex formation leads to IRF3 and IRF7 phosphorylation, activation, and type I IFN gene activation. Active IRF3 and IRF7 undergo proteasomal degradation, controlled by RAUL whose ligase activity is mediated by self-ubiquitination and proteolysis. In the context of KSHV infection, viral E3 ligase RTA will hijack RAUL and recruit deubiquitin enzyme HAUSP. HAUSP is responsible for deubiquitinating RAUL, leading to a stable and more active RAUL which in turn will more readily promote IRF3-IRF7 proteasomal degradation. Immunity 2010 33, 833-835DOI: (10.1016/j.immuni.2010.12.006) Copyright © 2010 Elsevier Inc. Terms and Conditions