Target
Human TLR4
Synonyms
TLR4 | CD284 | CD284 antigen | Homolog of Drosophila toll | TLR-4 | TOLL | ARMD10 | Toll-like receptor 4 | HToll
Reactivity
Human
(tested or 100% immunogen sequence identity)
Specificity
Toll-like receptors (TLR) are highly conserved throughout evolution and have been implicated in the innate defense to many pathogens. In Drosophila toll is required for the anti-fungal response, while the related 18-wheeler is involved in antibacterial defenses. In mammals, TLR identified as type I transmembrane signaling receptors with pattern recognition capabilities, have been implicated in the innate host defense to pathogens. TLR4 has been identified next to MD-2 and CD14 as a receptor that is central to the innate immune response to lipopolysaccharides (LPS) of Gram-negative bacteria. The HTA125 monoclonal antibody reacts preferentially, especially in flow cytometry, with human TLR4 that is associated with MD-2. HTA125 is a TLR4 function-blocking antibody that is useful for studies on the role of TLR4 as a receptor for LPS induced cytokine production by TLR4 bearing cells. The antibody was shown to precipitate TLR4 (100 kD).