Anti-TLR3 antibody [EPR24454-86] - BSA and Azide free (Capture)

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.

Activity summary

TLR3 also known as Toll-like receptor 3 is a protein that plays an important role in immune response mechanisms. With a molecular mass of around 104 kDa TLR3 is part of the Toll-like receptor family and expresses mostly in immune cells including dendritic cells and macrophages. It locates mainly on the endosomal membrane where it recognizes double-stranded RNA (dsRNA) which is often a sign of viral infection. TLR3 initiates signaling cascades that lead to the activation of important immune transcription factors.

Biological function summary

TLR3 acts as a sensor for viral and endogenous dsRNA. This receptor forms part of the innate immune system serving as a first line of defense against microbial infections. Upon encountering its ligand TLR3 undergoes conformational changes which allow interaction with the adaptor protein TRIF (TIR-domain-containing adapter-inducing interferon-β). This interaction triggers a downstream signaling cascade that leads to the production of type I interferons and pro-inflammatory cytokines which are essential for mounting an effective antiviral response.

Pathways

TLR3 engages in important signaling cascades like the NF-kB and IRF3 pathways. These pathways are activated by the TRIF-dependent pathway which is unique among the Toll-like receptors. TLR3 influences the expression of genes involved in the inflammatory response and apoptosis. The interactions of TLR3 with other proteins such as MyD88 and IRAK1 are indirect as TLR3 does not depend on the usual MyD88-dependent pathway. This specificity makes TLR3 a critical component in pathogen recognition and response strategies within the immune system.

Associated diseases and disorders

TLR3 has connections with several conditions primarily viral infections and autoimmune disorders like systemic lupus erythematosus (SLE). Mutations or dysregulation of TLR3 may lead to altered immune responses contributing to the pathogenesis of these diseases. TLR3's association with proteins like TRIF and IRF3 is significant in understanding its role in these conditions. Ongoing research investigates TLR3's potential as a therapeutic target to modulate immune responses in disease states.