function:Participates in the innate immune response to microbial agents. Cooperates with TLR2 to mediate the innate immune response to bacterial lipoproteins or lipopeptides. Acts via MYD88 and TRAF6, leading to NF-kappa-B activation, cytokine secretion and the inflammatory response.,similarity:Belongs to the Toll-like receptor family.,similarity:Contains 1 TIR domain.,similarity:Contains 8 LRR (leucine-rich) repeats.,subunit:Binds MYD88 (via TIR domain) (By similarity). Interacts (via extracellular domain) with TLR2. Ligand binding induces the formation of a heterodimer with TLR2.,tissue specificity:Ubiquitous. Highly expressed in spleen, ovary, peripheral blood leukocytes, thymus and small intestine.,
Cell membrane ; Single-pass type I membrane protein . Cytoplasmic vesicle, phagosome membrane ; Single-pass type I membrane protein . Membrane raft . Golgi apparatus . Does not reside in lipid rafts before stimulation but accumulates increasingly in the raft upon the presence of the microbial ligand. In response to triacylated lipoproteins, TLR2:TLR1 heterodimers are recruited in lipid rafts, this recruitment determine the intracellular targeting to the Golgi apparatus. .
Ubiquitous. Highly expressed in spleen, ovary, peripheral blood leukocytes, thymus and small intestine.
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