TLR-4, TLR 4, ARMD10, CD 284, CD284, CD284 antigen, Homolog of Drosophila toll, hTol, Toll (Drosophila) homolog, TOLL, Toll Endotoxin Hyporesponsiveness, Toll like receptor 4, Toll like receptor 4 precursor, TLR4_HUMAN.
Cooperates with LY96 and CD14 to mediate the innate immune response to bacterial lipopolysaccharide (LPS). Acts via MYD88, TIRAP and TRAF6, leading to NF-kappa-B activation, cytokine secretion and the inflammatory response. Also involved in LPS-independent inflammatory responses triggered by Ni(2+). These responses require non-conserved histidines and are, therefore, species-specific.