Key component of innate and adaptive immunity. TLRs (Toll-like receptors) control host immune response against pathogens through recognition of molecular patterns specific of microorganisms. TLR3 is a nucleotide-sensing TLR which is activated by double-stranded RNA, a sign of viral infection. Acts via MYD88 and TRAF6, leading to NF-kappa-B activation, cytokine secretion and the inflammatory response.
Specificity
Natural and recombinant Human Toll-like receptor 3
Subcellular Location
Endoplasmic reticulum membrane Single-pass type I membrane protein Endosome membrane
Interacts with MYD88 via their respective TIR domains. Interacts (via transmembrane domain) with UNC93B1 (By similarity). Interacts with TICAM1. Homodimer formation is triggered by ligand binding and is required for TLR3 signaling. Binding of double-stranded RNA is required for the interaction with SRC.