TLR4 Antibody



Product Details

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TLR4 Antibody Summary

Synthetic peptide, corresponding to amino acids 421-470 of Human TLR4.
Immunogen affinity purified
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Packaging, Storage & Formulations

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
PBS, pH 7.2.
0.05% Sodium Azide
1.0 mg/ml
Immunogen affinity purified


Application Notes
Western blot (WB) analysis of TLR4 (S441)pAb in extracts from HeLa cells.
Immunohistochemistry (IHC) analyzes of TLR4 (S441) pAb in paraffin-embedded human brain tissue.

The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Theoretical MW
100 kDa

Reactivity Notes

Human, Mouse


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 MD2 and CD14 as a receptor that is central to the innate immune response to lipopolysaccharides (LPS) of Gram negative bacteria. TLR4 contributes to the initiation of CNS neuroimmune activation after nerve transection. TLR4 is part of an early, specific, innate CNS/microglial response and maybe relevant in the prevention and treatment of neuropathic pain syndromes. TLR4 is weakly expressed by resting cells, but is upregulated following stimulation with LPS.


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Blogs on TLR4.

TRIF/TICAM1 and mitochondrial dynamics in the innate immune response
TRIF, also known as toll like receptor adaptor molecule 1 or TICAM1, is known for its role in invading foreign pathogens as part of our innate immune response. TRIF/TICAM1 is a TIR-domain adaptor protein (toll/interleukin-1 receptor) that interacts...  Read full blog post.

The role of TLR4 in breast cancer
Toll like receptors (TLRs) are highly conserved proteins that are first known for their role in pathogen recognition and immune response activation.  In order to elicit the necessary immune response in reaction to a foreign pathogen, TLRs trigger cy...  Read full blog post.

cIAP2 - balancing cell death and cell survival
The inhibitor of apoptosis proteins (IAPs) are important regulators of cell death and inflammation. The cellular inhibitor of apoptosis protein 2 (cIAP2) contains three Baculovirus IAP repeat (BIR) domains, a Ubiquitin associated (UBA) domain, and...  Read full blog post.

TLR4 - A Guardian of Innate Immunity
Toll-like receptor 4 (TLR4) belongs to the family of Toll-like receptors (TLR), and plays a main role in pathogen recognition and innate immunity system activation. The TLR family members are highly conserved proteins that all contain a high degree of...  Read full blog post.

IRAK4: The "master IRAK" critical for initiating immune responses
IRAK4, also known as Interleukin-1 receptor-associated kinase 4, is a serine/threonine-protein kinase that plays a critical role in initiating innate and adaptive immune responses against foreign pathogens. It activates NF-kappaB in both Toll-like rec...  Read full blog post.

TLR4: Playing Roles in Apoptosis and Autoimmunity
TLR4 (Toll-like receptor 4) is a member of the Toll-like receptor (TLR) family that plays a key role in pathogen recognition and activation of innate immunity. Scientists have found that TLRs are highly conserved from Drosophila to humans, with a high...  Read full blog post.

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Gene Symbol TLR4

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