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Recombinant Human TLR-3



TLR-3 is a single-pass type I receptor that binds to and signals the presence of microbial pathogens and double stranded RNA (dsRNA) viruses. Signaling through TLR-3 can promote the NF-kappaB pathway to initiate innate and adaptive immune responses to bacterial and viral infections, as well as the p53 pathway to trigger apoptosis in cells infected with dsRNA viruses. TLR-3 belongs to a family of structurally-related toll-like receptors (TLRs) containing an N-terminal domain rich in leucine repeats, and a C-terminal intracellular Toll/interleukin (IL)-1 (TIL) domain. TLR-3 is expressed primarily in dendritic cells of the placenta and pancreas where it can reside on both sides of the plasma membrane, and in the endosomal compartment of the cells. Recombinant Human TLR-3 is 77.4 kDa glycoprotein containing 681 residues which comprise the TLR-3 extracellular domain.


  • Gene Id: 7098
  • Uniprot: O15455
  • Activity: Determined by its ability to neutralize Poly I:C induced NF-kappaB signaling in HT-29 cells stably transfected with NF-kappaB-luc. The ED50 for this effect is 5-10 ug/ml.
  • Category: RUO Cytokines
  • Subcategory: Growth Factors & Cytokines
  • Research Areas: Apoptosis, Immune System, Inflammation, Receptors
  • Alternative Names: Toll-like receptor 3, CD283 antigen
  • Species of Origin: Human
  • Expression System Source: HEK293 cells