Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
Measured by its ability to neutralize Pam3CSK4-induced IL‑8 secretion in the HEK293 human embryonic kidney cell line transfected with human TLR2. The Neutralization Dose (ND50) is typically 0.03-0.15 µg/mL in the presence of 0.5 µg/mL The synthetic tripalmitoylated lipopeptide Pam3CSK4.
Please Note: Optimal dilutions should be determined by each laboratory for each application.
are available in the Technical Information section on our website.
IL‑8 Secretion Induced by Pam3CSK4 and Neutralization by Human TLR2 Antibody.
The synthetic tripalmitoylated lipopeptide Pam3CSK4 stimulates IL‑8 secretion in the HEK293 human embryonic kidney cell line transfected with human TLR2, in a dose-dependent manner (orange line), as measured by the Human CXCL8/IL‑8 Quantikine ELISA Kit (Catalog # D8000C). IL‑8 secretion elicited by Pam3CSK4 (0.5 µg/mL) is neutralized (green line) by increasing concentrations of Mouse Anti-Human TLR2 Monoclonal Antibody (Catalog # MAB2616). The ND50 is typically 0.03-0.15 µg/mL.
Detection of TLR2 in Human Monocytes by Flow Cytometry.
Human whole blood monocytes were stained with Mouse Anti-Human TLR2 Monoclonal Antibody (Catalog # MAB2616, filled histogram) or isotype control antibody (Catalog # MAB0041, open histogram), followed by Phycoerythrin-conjugated Anti-Mouse IgG F(ab')2 Secondary Antibody (Catalog # F0102B).
Preparation and Storage
Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Human toll-like receptor (TLR) family includes ten members that activate the innate immune response via an ability to recognize molecular structures found in a variety of microbial pathogens (1‑3). All TLR family members are type I transmembrane proteins with a large number of extracellular leucine-rich repeats (LRRs) and a cytoplasmic Toll/IL-1 receptor (TIR) domain. Human TLR2 is synthesized as a 784 amino acid (aa) precursor (2) that contains a signal sequence (aa 1-18), an extracellular domain (aa 19-588) with approximately 20 LRRs, a transmembrane segment (aa 589-609), and a cytoplasmic TIR domain (aa 610-784). The receptor is expressed on a number of cell types including monocytes, dendritic cells, neutrophils, B cells endothelial cells, and hepatocytes (1, 2, 4). TLR2 functions as part of a heterodimeric complex with either TLR1 or TLR6, and possibly other co-receptors (1). These complexes recognize lipoproteins and glycolipids from gram-positive and gram-negative bacteria as well as mycoplasma and yeast. TLR2/TLR1 heterodimers bind triacylated lipopeptides, while the TLR2/TLR6 heterodimer preferentially recognizes diacylated lipopeptides (5). Upon ligand recognition, TLR2 delivers an activating signal via the associated adapter molecules, MyD88 and TIRAP (1, 6). TLR2 signaling results in dendritic cell maturation characterized by increased surface expression of class II MHC and the T cell costimulators, CD80 and CD86 (1, 2). Activation via TLR2 also results in production of a number of pro-inflammatory cytokines including TNF-alpha, IL-2, IL-6, IL-12, and MIP-2 (1-3).
Wetzler, L. (2003) Vaccine 21:S2/55.
Kirschning, C. and R. Schumann (2002) Curr. Top. microbiol. Immunol. 270:121.
R&D Systems personnel manually curate a database that contains references using R&D Systems products.
The data collected includes not only links to publications in PubMed,
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We have 1 review tested in 1 application: Flow Cytometry.