Product Information

Contents: Affinity Purified anti-mouse Toll-like receptor 4/ MD-2 (TLR4/ MD-2, TLR-4/ MD2) - ACTIVATING
Catalog Number: 14-9926
Sizes: 50 ug, 100 ug
Formulation: Phosphate buffer pH 7.2,
500 mM NaCl, 0.09% NaN₃
Storage Conditions: Store at 4°C.
Avoid repeated freeze/thaw cycles.
Clone: UT18
Isotype: Mouse IgG3, κ

Available Formats of This Product
Cat. No.	Format	Excite (nm)	Emit (nm)	Reported Applications
14-9926	Affinity Purified anti-mouse Toll-like receptor 4/ MD-2 (TLR4/ MD-2, TLR-4/ MD2) - ACTIVATING	N/A	N/A	FC IP
16-9926	Functional Grade* Purified anti-mouse Toll-like receptor 4/ MD-2 (TLR4/ MD-2, TLR-4/ MD2) - ACTIVATING	N/A	N/A	FA FC IP
*Functional Grade™ (FG™) Purified: Azide-free, sterile-filtered, and endotoxin < 0.001 ng/µg (unless otherwise noted). *Functional Grade™ (FG™) Biotin: Azide-free, sterile-filtered, and endotoxin < 0.05 ng/µg. Purified: Contains azide, not sterile-filtered, and not endotoxin tested.
Flow Cytometry Product Notes: Test Sizes: To accommodate multicolor flow cytometry, eBioscience is in the process of reducing test size volumes from 20 µl to 5 µl. Please check your antibody vial for the recommended test size. Fluorochrome Replacements: eBioscience is in the process of replacing all Pacific Blue® and APC-Alexa Fluor® 750 conjugated products with eFluor™ 450 and APC-eFluor™ 780 conjugated products, respectively.

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Description

The UT18 monoclonal antibody was generated against BaF3 cells overexpressing mouse TLR4 and reacts with the mouse Toll-like receptor 4 (TLR4)/MD-2 complex. So far, at least twelve members of the Toll family have been identified. This family of type I transmembrane protein is characterized by an extracellular domain with leucine-rich repeats and a cytoplasmic domain with homology to the type I IL-1 receptor. Two of these receptors, TLR2 and TLR4, are pattern recognition receptors and signaling molecules in response to bacterial lipoproteins and have been implicated in innate immunity and inflammation. TLR4 physically associates with another molecule called MD-2, and together with CD14, this complex is responsible for LPS recognition and signaling. TLR4, which is approximately 100 kDa, is expressed by myeloid lineage cells.

Applications Reported

For research use only, not for diagnostic or therapeutic use. This UT18 antibody has been reported for use in flow cytometric analysis, and immunoprecipitation.

Applications Tested

The Functional Grade UT18 has been tested for it's ability to induce stimulation of TNF-α secretion by peritoneal-exudate macrophages, as measured by ELISA. After stimulation with >100 ng for 6 hours, Functional Grade UT18 induced 1/3 of the response generated by the LPS-control, and induced a 10-fold greater response than the isotype control.

References

Nomura, F., S. Akashi, et al. 2000. Cutting edge: endotoxin tolerance in mouse peritoneal macrophages correlates with down-regulation of surface toll-like receptor 4 expression. J Immunol 164(7): 3476-9.

Sato, S., F. Nomura, et al. 2000. Synergy and cross-tolerance between toll-like receptor (TLR) 2- and TLR4-mediated signaling pathways. J Immunol 165(12): 7096-101.

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