Detects mouse 4‑1BB/TNFRSF9/CD137 in direct ELISAs and Western blots. In direct ELISAs, approximately 100% cross-reactivity with recombinant rat 4-1BB/TNFRSF9 is observed. In Western blots, less than 5% cross-reactivity with recombinant human 4-1BB and recombinant mouse EDAR is observed.
Measured by its ability to co-stimulate IFN-gamma secretion by mouse splenic T cells in the presence of anti-CD3. Saoulli, K. et al. (1998) J. Exp. Med. 187(11):1849 and Cannons, J. et al. (2001) J. Immunol. 167:1313. The ED50 for this effect is typically 0.3 - 1 μg/mL.
Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
Please Note: Optimal dilutions should be determined by each laboratory for each application.
are available in the Technical Information section on our website.
Detection of Mouse 4‑1BB/TNFRSF9/ CD137 by Western Blot.
Western blot shows lysates of NS0 mouse myeloma cell line either mock transfected or transfected with recombinant mouse 4-1BB/Fc chimera. PVDF membrane was probed with 0.5 µg/mL of Goat Anti-Mouse 4‑1BB/TNFRSF9/CD137 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF937) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). Specific bands were detected for 4‑1BB/TNFRSF9/CD137 at approximately 50-60 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Detection of 4‑1BB/TNFRSF9/CD137 in Activated Mouse Splenocytes by Flow Cytometry.
Activated mouse splenocytes were stained with Rat Anti-Mouse ICOS APC‑conjugated Monoclonal Antibody (Catalog # FAB168A) and either (A) Goat Anti-Mouse 4‑1BB/TNFRSF9/CD137 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF937) or (B) Normal Goat IgG Control (Catalog # AB-108-C) followed by Phycoerythrin-conjugated Anti-Goat IgG Secondary Antibody (Catalog # F0107). View our protocol for Staining Membrane-associated Proteins.
Detection of 4‑1BB/TNFRSF9/CD137 in Resting Mouse Splenocytes by Flow Cytometry.
Resting mouse splenocytes were stained with Rat Anti-Mouse ICOS APC‑conjugated Monoclonal Antibody (Catalog # FAB168A) and either (A) Goat Anti-Mouse 4‑1BB/TNFRSF9/CD137 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF937) or (B) Normal Goat IgG Control (Catalog # AB-108-C) followed by Phycoerythrin-conjugated Anti-Goat IgG Secondary Antibody (Catalog # F0107). View our protocol for Staining Membrane-associated Proteins.
4‑1BB/TNFRSF9/CD137 in Mouse Spleen.
4‑1BB/TNFRSF9/CD137 was detected in perfusion fixed frozen sections of mouse spleen using Goat Anti-Mouse 4‑1BB/TNFRSF9/CD137 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF937) at 1.7 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS009) and counterstained with hematoxylin (blue). Specific staining was localized to cell surfaces. View our protocol for Chromogenic IHC Staining of Frozen Tissue Sections.
Preparation and Storage
Reconstitute at 0.2 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.
4-1BB, also known as CD137 and ILA (induced by lymphocyte activation), is a TNF receptor superfamily member and has been designated TNFRSF9. Mouse 4‑1BB cDNA encodes a 256 amino acid (aa) residues type I transmembrane protein with a putative 23 aa signal peptide, a 164 aa extracellular domain, a 21 aa transmembrane domain and a 48 aa cytoplasmic region (1‑3). A soluble 4‑1BB is released from surfaces of cells expressing the transmembrane protein (4). Mouse 4‑1BB shares approximately 60% aa sequence identity with its human counterpart. 4‑1BB is expressed on activated CD4+ and CD8+ T cells, thymocytes, and NK cells. It is also expressed on monocytes, neutrophils, DCs and eosinophils (5). The ligand for 4‑1BB (4‑1BBL), also named TNFSF9, belongs to the TNF ligand superfamily. 4‑1BBL is predominantly expressed on activated antigen presenting cells (APCs) such as B cells, macrophages and dendritic cells (DCs). It is also expressed on most T and B lymphoma cell lines. In response to 4‑1BBL binding, 4‑1BB transduce a T cell costimulatory signal in both CD4+ and CD8+ T cells to promote survival and enhance proliferation, cytokine production and effector function. In vivo, the costimulatory activity of 4‑1BB has been shown to be important in graft-vs-host disease and antiviral CTL responses. On dendritic cells, 4‑1BB is a DC-activating molecules that enhances cytokine production and up‑regulates expression of B7-1 and B7-2 costimulatory molecules, resulting in an improved ability to stimulate T cell responses (1‑5).
Goodwin, R.G. et al. (1993) Eur. J. Immunol. 23:2631.
Alderson, M.R. et al. (1994) Eur. J. Immunol. 24:2219.
Kwon, B.S. and S.M. Weissman (1989) Proc. Nat. Acad. Sci. USA 86:1963.
Wilcox, R.A. et al. (2002) J. Immunol. 168:4262.
Kwon, B., H.W. Lee and B.S. Kwon, 2002, TRENDS in Immunology 23:378.
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.
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