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Your Position: Home > Antibody > 4-1BB > 41B-M749G0

 Monoclonal Anti-Human 4-1BB Antibody, Mouse IgG1 (Clone: AM749), premium grade

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  • Source
     Monoclonal Anti-Human 4-1BB Antibody, Mouse IgG1 (Clone: AM749), premium grade is a chimeric monoclonal antibody recombinantly expressed from human 293 cells (HEK293), which combines the variable region of a mouse monoclonal antibody with human IgG1 constant domain. The mouse monoclonal antibody is produced from a hybridoma resulting from fusion of SP2/0 myeloma and B-lymphocytes obtained from a mouse immunized with 4-1BB.
    It is produced under our rigorous quality control system that incorporates a comprehensive set of tests including sterility and endotoxin tests. Product performance is carefully validated and tested for compatibility for cell culture use or any other applications in the early preclinical stage. When ready to transition into later clinical phases, we also offer a custom GMP protein service that tailors to your needs. We will work with you to customize and develop a GMP-grade product in accordance with your requests that also meets the requirements for raw and ancillary materials use in cell manufacturing of cell-based therapies.
  • Isotype
    Mouse IgG1/kappa
  • Specificity
    This product is a specific antibody specifically reacts with 4-1BB.
  • Purity

    >95% as determined by SDS-PAGE.

    >95% as determined by SEC-MALS.

  • Endotoxin
    Less than 0.005 EU per μg by the LAL method.
  • Sterility
    Negative
  • Mycoplasma
    Negative.
  • 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 -70°C.

    Please avoid repeated freeze-thaw cycles.

    This product is stable after storage at:

    1. 2-8°C for 3 months under sterile condition;
    2. -70°C for 24 months.
SDS-PAGE
4-1BB SDS-PAGE

 Monoclonal Anti-Human 4-1BB Antibody, Mouse IgG1 (Clone: AM749), premium grade on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95% (With Star Ribbon Pre-stained Protein Marker).

SEC-MALS
4-1BB MALS images

The purity of  Monoclonal Anti-Human 4-1BB Antibody, Mouse IgG1 (Clone: AM749), premium grade (Cat. No. 41B-M749G0) is more than 95% and the molecular weight of this protein is around 130-160 kDa verified by SEC-MALS.

Bioactivity-Bioactivity CELL BASE
 4-1BB CELL

Monoclonal Anti-Human 4-1BB Antibody, Mouse IgG1 (Clone: AM749), premium grade (Cat. No. 41B-M749G0) stimulates the secretion of IL-8 by HT1080 human CD137 cell line. The EC50 value of this effect is 4.985 ng/mL (Routinely tested).

Bioactivity-Elisa
 4-1BB ELISA

Immobilized Human 4-1BB, His Tag (Cat. No. 41B-H52Hc) at 1 μg/mL (100 μL/well) can bind  Monoclonal Anti-Human 4-1BB Antibody, Mouse IgG1 (Clone: AM749), premium grade (Cat. No. 41B-M749G0) with a linear range of 0.1-4 ng/mL (QC tested).

  • 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 .
  • Clinical and Translational Updates

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