TRAF mediated activation of IRF

Stable Identifier
Gallus gallus
Related Species
Infectious bronchitis virus
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Once activated, IPS-1 recruits TRAFs (TNF receptor associated factor protein family members) to the RIG-1/MDA5 receptor complex. TRAF3 and TRAF6 act as a scaffold for the assembly of the signaling complex composed of TBK1/ IKK epsilon, leading to the activation of transcription factors IRF3 and IRF7. TRAF6-induced activation of IRF is likely to be specific for IRF7, while TRAF3 is thought to activate both IRF3 and IRF7 [Konno H et al 2009, Oganesyan G et al 2006].

Transient transfection experiments in human embryonic kidney (HEK) 293 cells revealed that TRAF6 associates with IPS-1, TBK1, IKKi and TANK [Konno H et al 2009]. TRAF3 was also shown to form complexes with IPS-1, TBK1 and IKKi [Oganesyan G et al 2006, Alff PJ et al 2008, Saha SK et al 2006]

Literature References
PubMed ID Title Journal Year
16306936 Critical role of TRAF3 in the Toll-like receptor-dependent and -independent antiviral response

Perry, A, Saha, SK, Oganesyan, G, He, JQ, Guo, B, Shahangian, A, Cheng, G, Zarnegar, B

Nature 2006
19479062 TRAF6 establishes innate immune responses by activating NF-kappaB and IRF7 upon sensing cytosolic viral RNA and DNA

Takeuchi, O, Kato, A, Goto, H, Tsunetsugu-Yokota, Y, Su, B, Yamazaki, K, Yamamoto, T, Inoue, J, Semba, K, Akira, S, Akiyama, T, Gohda, J, Konno, H, Kawaguchi, Y, Imai, T, Yujiri, T

PLoS One 2009
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