NCIt definition : Toll-like receptor 4 (839 aa, 96 kDa) is encoded by the human TLR4 gene. This protein
is involved in regulation of both fatty acid-induced inflammation and the innate immune
response following bacterial lipopolysaccharide binding.;
NCIt note : As part of the LPS receptor (with CD14 and LY96), TLR4 mediates the immune response
to LPS in gram-negative bacteria. Binding to LY96 via the extracellular domain and
to MyD88 and TIRAP via their TIR domains, TLR4 acts via MyD88, TIRAP, and TRAF6, leading
to NF-kappa-B activation, cytokine secretion, and the inflammatory response. TLR4
Asn-526 and Asn-575 glycosylation seems necessary for the LPS-response.;