IRF3-mediated induction of type I IFN

Stable Identifier
Homo sapiens
Locations in the PathwayBrowser

TANK-binding kinase 1 (TBK1) and interferon regulatory factor 3 (IRF3) are central regulators of type-I interferon induction during bacterial or viral infection. TBK1 was found to form complexes with distinct scaffolding proteins that appeared to target TBK1 to different subcellular compartments [Hemmi H et al 2004; Oganesyan G et al 2006; Chariot A et al 2002; Huang J et al 2005]. STING interacted with both TBK1 and IRF3. Once STING is stimulated, its C-terminus served as a signaling scaffold to recruit IRF3 anhd TBK1, which led to TBK1-dependent phosphorylation of IRF3. Phosphorylation of IRF3 promoted its dimerization and translocation to the nucleus, where it triggered the transcription of interferon stimulated genes (ISGs) (Tanaka Y and Chen ZJ 2012).

Literature References
PubMed ID Title Journal Year
22394562 STING specifies IRF3 phosphorylation by TBK1 in the cytosolic DNA signaling pathway

Tanaka, Y, Chen, ZJ

Sci Signal 2012
Participant Of
Event Information
Orthologous Events