TLR3: a member of the Toll-like receptor (TLR) family which plays a fundamental role in pathogen recognition and activation of innate immunity. Most abundantly expressed in placenta and pancreas. Restricted to the dendritic subpopulation of the leukocytes. It recognizes dsRNA associated with viral infection. Acts via MyD88 and TRAF6, leading to the activation of NF-kappaB and the production of type I interferon.
Protein type: Receptor, cytokine; Membrane protein, integral
Cellular Component: cell surface; lysosomal membrane; cytoplasm; integral to membrane; intracellular
Molecular Function: identical protein binding; transmembrane receptor activity; double-stranded RNA binding; receptor activity
Biological Process: positive regulation of apoptosis; positive regulation of interleukin-12 production; microglial cell activation; positive regulation of JNK cascade; defense response; positive regulation of NF-kappaB import into nucleus; positive regulation of interferon-alpha biosynthetic process; toll-like receptor 3 signaling pathway; activation of NF-kappaB transcription factor; positive regulation of interleukin-8 production; response to exogenous dsRNA; positive regulation of interferon-beta production; positive regulation of interferon type I production; defense response to virus; positive regulation of I-kappaB kinase/NF-kappaB cascade; response to virus; MyD88-independent toll-like receptor signaling pathway; male gonad development; response to dsRNA; positive regulation of interleukin-6 production; positive regulation of tumor necrosis factor production; positive regulation of chemokine production; positive regulation of toll-like receptor signaling pathway; positive regulation of chemokine biosynthetic process; positive regulation of interferon-beta biosynthetic process; toll-like receptor signaling pathway; positive regulation of transcription from RNA polymerase II promoter; positive regulation of protein amino acid phosphorylation; I-kappaB phosphorylation; positive regulation of inflammatory response; microglial cell activation during immune response; positive regulation of interferon-gamma biosynthetic process
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