Detects human TNF RII/TNFRSF1B in direct ELISAs and Western blots. In direct ELISAs, no cross-reactivity with recombinant human (rh) 4‑1BB, rhCD27, rhCD30, rhCD40, rhDR3, rhDR6, rhFas, rhGITR, rhHVEM, rhLTR beta, rhNGF R, rhOPG, rhRANK, rhTNF RI, or recombinant mouse TNF RII is observed. Neutralizes the biological effect of rhTNF RII but not rhTNF RI.
Monoclonal Mouse IgG2A Clone # 22221
Protein A or G purified from ascites
E. coli-derived recombinant human TNF RII Leu23-Asp257 Accession # P20333
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
<0.10 EU per 1 μg of the antibody by the LAL method.
Measured by its ability to neutralize TNF RII/TNFRSF1B-mediated inhibition of cytotoxicity in the L‑929 mouse fibroblast cell line. The Neutralization Dose (ND50) is typically 0.5-1.5 µg/mL in the presence of 0.3 µg/mL Recombinant Human TNF RII/TNFRSF1B, 0.25 ng/mL Recombinant Human TNF‑ alpha, and 1 µg/mL actinomycin D.
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
TNF RII/TNFRSF1B Inhibition of TNF‑ alpha -induced Cytotoxicity and Neutralization by Human TNF RII/TNFRSF1B Antibody. Recombinant Human TNF RII/TNFRSF1B inhibits Recombinant Human TNF‑ alpha (Catalog # 210-TA) induced cytotoxicity in the L‑929 mouse fibroblast cell line in a dose-dependent manner (orange line), as measured by crystal violet staining. Inhibition of Recombinant Human TNF‑ alpha (0.25 ng/mL) activity elicited by Recombinant Human TNF RII/ TNFRSF1B (0.3 µg/mL) is neutralized (green line) by increasing concentrations of Mouse Anti-Human TNF RII/ TNFRSF1B Monoclonal Antibody (Catalog # MAB226). The ND50 is typically 0.5-1.5 µg/mL in the presence of the metabolic inhibitor actinomycin D (1 µg/mL).
TNF RII/TNFRSF1B in Human PBMCs. TNF RII/TNFRSF1B was detected in immersion fixed human peripheral blood mononuclear cells (PBMCs) using Mouse Anti-Human TNF RII/TNFRSF1B Monoclonal Antibody (Catalog # MAB226) at 25 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counterstained with DAPI (blue). Specific staining was localized to plasma membrane and cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.
Preparation and Storage
Reconstitute at 0.5 mg/mL in sterile PBS.
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.
Background: TNF RII/TNFRSF1B
TNF RII, also known as p75 or p80 TNF R, is a prototypic member of the TNF receptor superfamily and has been designated TNFRSF1B. It binds TNF with highaffinity and is expressed primarily in cells of the immune system.
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,
but also provides information about sample types, species, and experimental conditions.
The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.