Recombinant Mouse Tnfrsf9 Protein, C-His-tagged, Biotinylated
Product Description
Cat
IMP-1566
Official Symbol
Tnfrsf9
Product Overview
Recombinant mouse TNFRSF9 isoform 1 precursor (NP_001070977.1) (Met1-Leu187) was expressed with a polyhistidine tag at the C-terminus. The purified protein was biotinylated in vitro.
Description
CD137 (also known as 4-1BB) is a surface co-stimulatory glycoprotein originally described as present on activated T lymphocytes, which belongs to the tumor necrosis factor (TNF) receptor superfamily. It is expressed mainly on activated CD4+ and CD8+ T cells, and binds to a high-affinity ligand (4-1BBL) expressed on several antigen-presenting cells such as macrophages and activated B cells. Upon ligand binding, 4-1BB is associated with the tumor necrosis factor receptor–associated factors (TRAFs), the adaptor protein which mediates downstream signaling events including the activation of NF-kappaB and cytokine production. 4-1BB signaling either by binding to 4-1BBL or by antibody ligation delivers signals for T-cell activation and growth, as well as monocyte proliferation and B-cell survival, and plays an important role in the amplification of T cell-mediated immune responses. In addition, CD137 and CD137L are expressed in different human primary tumor tissues, suggesting that they may influence the progression of tumors. Crosslinking of CD137 on activated T cells has shown promise in enhancing anti-tumor immune responses in murine models, and agonistic anti-CD137 antibodies are currently being tested in phase I clinical trials. Soluble forms of CD137 (sCD137) are generated by differential splicing. sCD137 can bind to CD137 ligand to antagonize the costimulatory activities of the membrane-bound CD137 and reduce T cell proliferation and IL-2 secretion.
Expression System
HEK293
Species
Mouse
Tag
C-His
Predicted N Terminal
Val 24
Form
Lyophilized from sterile PBS, pH 7.4, 5 % trehalose, 5% mannitol and 0.01% Tween80.
Molecular Mass
The recombinant mouse TNFRSF9 consists of 175 amino acids and predicts a molecular mass of 19.00 kDa. The apparent molecular mass of it is approximately 34.64 and 30.78 KDa in SDS-PAGE under reducing conditions.
Protein length
Met1-Leu187
Endotoxin
< 1.0 EU/μg protein as determined by the LAL method.
Purity
> 95 % as determined by SDS-PAGE
Storage
Samples are stable for up to twelve months from date of receipt at -20 to -80 centigrade.
Store it under sterile conditions at -20 to -80 centigrade. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution
A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Data Sheet MSDS
For research or industrial raw materials, not for personal medical use!

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