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; membrane; lysosomal membrane; endoplasmic reticulum; cytoplasm; integral to membrane; intracellular; endosome
Molecular Function: identical protein binding; protein binding; transmembrane receptor activity; RNA binding; double-stranded RNA binding; receptor activity
Biological Process: positive regulation of interleukin-12 production; positive regulation of JNK cascade; microglial cell activation; positive regulation of interferon-alpha biosynthetic process; defense response; positive regulation of NF-kappaB import into nucleus; toll-like receptor 3 signaling pathway; signal transduction; activation of NF-kappaB transcription factor; positive regulation of interleukin-8 production; response to exogenous dsRNA; positive regulation of interferon type I production; positive regulation of interferon-beta production; inflammatory response; defense response to virus; positive regulation of cytokine production; positive regulation of I-kappaB kinase/NF-kappaB cascade; immune system process; MyD88-independent toll-like receptor signaling pathway; response to virus; response to dsRNA; positive regulation of interleukin-6 production; positive regulation of tumor necrosis factor production; positive regulation of toll-like receptor signaling pathway; positive regulation of chemokine production; positive regulation of chemokine biosynthetic process; positive regulation of interferon-beta biosynthetic process; toll-like receptor signaling pathway; innate immune response; 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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