• Species Reactivity

  Mouse

• Specificity

  Detects mouse 4-1BB in direct ELISAs and Western blots. Does not cross-react with recombinant human (rh) 4‑1BB, rhCD27, recombinant mouse (rm) CD27, rhCD30, rmCD30, rhCD40, rmCD40, rhDR3, rhDR6, rhEDAR, rmEDAR, rhFas, rmFas, rhGITR, rmGITR, rhHVEM, rhLTR beta, rhNGF R, rhOPG, rmOPG, rhRANK, rmRANK, rhTROY, rmTROY, rhTNF sRI, rhTNF sRII, or rmTNF sRII.

• Source

  Monoclonal Rat IgG2a Clone # 158332

• Immunogen

  Mouse myeloma cell line NS0-derived recombinant mouse 4-1BB    
  Val24-Leu187    
  Accession # P20334

• Formulation

  Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.

• Label

  Alexa Fluor 488

Applications

• Recommended    
  Concentration

  Sample

• Flow Cytometry

  0.25-1 µg/10    ⁶ cells

  Activated and resting mouse splenocytes

• 
  

Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Preparation and Storage

• Stability & Storage

  Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: 4-1BB/TNFRSF9/CD137

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 upregulates expression of B7-1 and B7‑2 costimulatory molecules, resulting in an improved ability to stimulate T cell responses (1 - 5).

• References:

1. Goodwin, R.G. et al. (1993) Eur. J. Immunol. 23:2631.

2. Alderson, M.R. et al. (1994) Eur. J. Immunol. 24:2219.

3. Kwon, B.S. and S.M. Weissman (1989) Proc. Nat. Acad. Sci. USA 86:1963.

4. Wilcox, R.A. et al. (2002) J. Immunol. 168:4262.

5. Kwon, B. et al. (2002) TRENDS in Immunology 23:378.

• Entrez Gene IDs:

  3604 (Human); 21942 (Mouse); 500590 (Rat); 102127961 (Cynomolgus Monkey)

• Alternate Names:

  4-1BB ligand receptor; 41BB; 4-1BB; CD137 antigen; CD137; CD137MGC2172; CDw137; FLJ43501; ILA; ILAhomolog of mouse 4-1BB; induced by lymphocyte activation (ILA); interleukin-activated receptor, homolog of mouse Ly63; receptor protein 4-1BB; T cell antigen ILA; T-cell antigen 4-1BB homolog; T-cell antigen ILA; TNFRSF9; tumor necrosis factor receptor superfamily member 9; tumor necrosis factor receptor superfamily, member 9