Monoclonal Anti-Human 4-1BB Antibody, Mouse IgG1, Research Grade

Research use only
This product is designed for academic and scientific research institutions.
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41B-CH25GN-100ug
$139.00
41B-CH25GN
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Features and Advantages
  • Native Conformation: Native sequences, tag-free and natural function.
  • Reliable Activity: Biological activity calibrated against WHO/NIBSC standards.
  • Stringent Quality Control: Protein content, purity, and cell-based bioactivity testing for each batch.
  • Lowest Endotoxin level (<0.01 EU/ug).
  • Safety Assurance: Sterile filtration through 0.2 μm membrane.
  • AOF: Animal origin-free raw materials throughout the production process.
Source

Monoclonal Anti-Human 4-1BB Antibody, Mouse IgG1, Research Grade (41B-CH25GN) is a chimeric monoclonal antibody recombinantly produced from CHO cells, which combines the variable region of a human monoclonal antibody with mouse IgG1 constant domain.

Isotype

Mouse IgG1, Kappa

Specificity

This product is a specific antibody specifically reacts with 4-1BB.

Endotoxin

Less than 0.002 EU per μg by the LAL method / rFC method.

Purity

>95% as determined by SDS-PAGE.

>95% as determined by SEC-MALS.

Formulation

Supplied as 0.2 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

Contact us for customized product form or formulation.

Shipping

This product is supplied and shipped with dry ice, please inquire the shipping cost.

Storage

For long term storage, the product should be stored at liquid state at -20°C or below.

Please avoid repeated freeze-thaw cycles.

This product is stable after storage at:
  • -20°C or below for 24 months under sterile conditions;
  • 2-8°C for 12 months after thaw if within expiry date.
Quality Description

ACRO's Research-grade products are suitable for a wide range of cell culture applications, particularly for research use in academic institutions. These products are sterilized by filtration, followed by lyophilization where applicable. Typical specifications include endotoxin levels of <0.01 EU/μg and purities >95%. Biological activity is calibrated against WHO/NIBSC standards when available.
ACRO's Premium-grade (Pre-GMP) products are characterized by their high quality and enhanced safety profiles, making them ideal for early-stage discovery and manufacturing processes in cell therapy companies. A key advantage is their seamless transition to corresponding GMP-grade versions. Biological activity is calibrated against WHO/NIBSC standards when available. Typical specifications include endotoxin levels of <0.01 EU/μg and purities >95%. In addition, rigorous testing is conducted to ensure the absence of mycoplasma, HCD, and HCP, thereby guaranteeing product safety.

Background

4-1BB, also known as CD137 and TNFRSF9, is an approximately 30 kDa transmembrane glycoprotein in the TNF receptor superfamily. 4-1BB functions in the development and activation of multiple immune cells. Mature human 4-1BB consists of a 163 amino acid (aa) extracellular domain (ECD) with four TNFR cysteine-rich repeats, a 27 aa transmembrane segment, and a 42 aa cytoplasmic domain . Within the ECD, human 4-1BB shares 60% aa sequence identity with mouse and rat 4-1BB. 4-1BB is expressed as a disulfide-linked homodimer on various populations of activated T cell including CD4, CD8, memory CD8, NKT, and regulatory T cells as well as on myeloid and mast cell progenitors, dendritic cells, mast cells, and bacterially infected osteoblasts . It binds with high affinity to the transmembrane 4-1BB Ligand/TNFSF9 which is expressed on antigen presenting cells and myeloid progenitor cells . This interaction costimulates the proliferation, activation, and/or survival of the 4-1BB expressing cell . It can also enhance the activation-induced cell death of repetitively stimulated T cells . Mice lacking 4-1BB show augmented T cell activation, perhaps due to its absence on regulatory T cells . 4-1BB can associate with OX40 on activated T cells, forming a complex that responds to either ligand and inhibits Treg and CD8 T cell proliferation . Reverse signaling through 4-1BB Ligand inhibits the development of dendritic cells, B cells, and osteoclasts but supports mature dendritic cell survival and costimulates the proliferation and activation of mast cells.
4-1BB activation enhances CD8 T cell and NK cell mediated anti-tumor immunity . It also contributes to the development of inflammation in high fat diet-induced metabolic syndrome . Soluble forms of 4-1BB and 4-1BB Ligand circulate at elevated levels in the serum of rheumatoid arthritis and hematologic cancer patients, respectively .