Key Product Details

Species Reactivity

Human

Applications

Immunohistochemistry, ELISA, Block/Neutralize, Flow Cytometry

Label

Unconjugated

Antibody Source

Recombinant Monoclonal Mouse IgG1 kappa Clone # 4B4-1-1

Format

Azide and BSA Free
View all 4-1BB/TNFRSF9/CD137 Primary Antibodies »

Product Specifications

Immunogen

The original antibody was generated by immunizing BALB/c mice with a fusion protein of human 4-1BB/TNFRSF9/CD137 antigen and glutathione s transferase (GST).

Specificity

This antibody binds to the human 4-1BB/TNFRSF9/CD137, which is expressed on the surface of activated T cells.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1 kappa

Description

Novus Biologicals Mouse 4-1BB/TNFRSF9/CD137 Antibody (4B4-1-1) - Azide and BSA Free (NBP3-12028) is a recombinant monoclonal antibody validated for use in IHC, ELISA and Flow. All Novus Biologicals antibodies are covered by our 100% guarantee.

Applications for 4-1BB/TNFRSF9/CD137 Antibody (4B4-1-1) - Azide and BSA Free

Application
Recommended Usage

Block/Neutralize

Optimal dilutions of this antibody should be experimentally determined.

ELISA

Optimal dilutions of this antibody should be experimentally determined.

Flow Cytometry

Optimal dilutions of this antibody should be experimentally determined.

Immunohistochemistry

Optimal dilutions of this antibody should be experimentally determined.

Flow Cytometry Panel Builder

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Advanced Features

  • Spectra Viewer - Custom analysis of spectra from multiple fluorochromes
  • Spillover Popups - Visualize the spectra of individual fluorochromes
  • Antigen Density Selector - Match fluorochrome brightness with antigen density
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Flow Cytometry

Formulation, Preparation, and Storage

Purification

Protein A purified

Formulation

PBS

Format

Azide and BSA Free

Preservative

0.02% Proclin 300

Concentration

1 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C for up to 3 months. For longer storage, aliquot and store at -20C.

Background: 4-1BB/TNFRSF9/CD137

4-1BB, also called CD137 and tumor necrosis factor receptor superfamily member 9 (TNFRSF9), is a type I surface glycoprotein expressed on activated T cell and natural killer (NK) cells (1,2). Human 4-1BB protein is 255 amino acids (aa) in length with a theoretical molecular weight of 28 kDa. It contains an extracellular domain, a helical transmembrane domain, and a cytoplasmic/intracellular domain (3). 4-1BB/TNFRSF9/CD137 is a costimulatory receptor that binds the ligand 4-1BBL/CD137L which is primarily expressed on antigen presenting cells (APCs) such as dendritic cells (DCs), macrophages, and B cells (1,2,4,5). The 4-1BB receptor-ligand interaction results in recruitment of TNFR-associated factor (TRAF) family adaptor proteins to 4-1BB's cytoplasmic domain (1,2,4,5). TRAF1, TRAF2, and TRAF3 are found in various homodimer and/or heterodimer configurations. Their recruitment to 4-1BB/CD137 initiates signalosome formation as well as activation of the nuclear factor-kappa B (NF-kappaB) and mitogen-activated protein kinase (MAPK) signaling cascade (1,4,5). 4-1BB/TNFRSF9/CD137 stimulation leads to increased cellular cytotoxic activity and pro-inflammatory cytokine production (1,2,4). Given its role in immune cell activation, 4-1BB has become a promising target for cancer immunotherapy (1,2,4). Current approaches to target 4-1BB include agonistic monoclonal and bispecific anti-4-1BB antibodies and well as utilizing the cytoplasmic domain of 4-1BB in generating chimeric antigen receptors (CARs) (1,2,4). 4-1BB agonists in clinical trials include Urelumab and Utolimumab. Utolimumab also has ligand blocking properties whereas Urelumab does not (1,2,4). Anti-4-1BB monoclonal antibodies are being tested as monotherapy as well as combination therapy with either other immunostimulatory monoclonal antibodies or with checkpoint blockade antibodies like anti-PD-1 (1,2,4).

References

1. Etxeberria, I., Glez-Vaz, J., Teijeira, A., & Melero, I. (2020). New emerging targets in cancer immunotherapy: CD137/4-1BB costimulatory axis. ESMO open, 4(Suppl 3), e000733. https://doi.org/10.1136/esmoopen-2020-000733

2. Chester, C., Sanmamed, M. F., Wang, J., & Melero, I. (2018). Immunotherapy targeting 4-1BB: mechanistic rationale, clinical results, and future strategies. Blood, 131(1), 49-57. https://doi.org/10.1182/blood-2017-06-741041

3. Uniport (Q07011)

4. Chester, C., Ambulkar, S., & Kohrt, H. E. (2016). 4-1BB agonism: adding the accelerator to cancer immunotherapy. Cancer Immunology, Immunotherapy: CII, 65(10), 1243-1248. https://doi.org/10.1007/s00262-016-1829-2

5. Zapata, J. M., Perez-Chacon, G., Carr-Baena, P., Martinez-Forero, I., Azpilikueta, A., Otano, I., & Melero, I. (2018). CD137 (4-1BB) signalosome: complexity is a matter of TRAFs. Frontiers in Immunology, 9, 2618. https://doi.org/10.3389/fimmu.2018.02618

Alternate Names

41BB, CD137, ILA, TNFRSF9

Gene Symbol

TNFRSF9

Additional 4-1BB/TNFRSF9/CD137 Products

Product Documents for 4-1BB/TNFRSF9/CD137 Antibody (4B4-1-1) - Azide and BSA Free

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot or batch number in the search box below.

Product Specific Notices for 4-1BB/TNFRSF9/CD137 Antibody (4B4-1-1) - Azide and BSA Free

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Protocols

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