The protein encoded by this gene is a cytokine that belongs to the tumor necrosis factor (TNF) ligand family. This transmembrane cytokine is a bidirectional signal transducer that acts as a ligand for TNFRSF9/4-1BB, which is a costimulatory receptor molecule in T lymphocytes. This cytokine and its receptor are involved in the antigen presentation process and in the generation of cytotoxic T cells. The receptor TNFRSF9/4-1BB is absent from resting T lymphocytes but rapidly expressed upon antigenic stimulation. The ligand encoded by this gene, TNFSF9/4-1BBL, has been shown to reactivate anergic T lymphocytes in addition to promoting T lymphocyte proliferation. This cytokine has also been shown to be required for the optimal CD8 responses in CD8 T cells. This cytokine is expressed in carcinoma cell lines, and is thought to be involved in T cell-tumor cell interaction.[provided by RefSeq, Oct 2008].
Source:Recombinant protein corresponding to aa50-254 from human CD137L, fused to His-tag at N-terminal, expressed in HEK293 cell expression system.
Molecular Weight:~24kD
Endotoxin:<1EU/ug
Applications:Suitable for use in studying protein binding and for screening small molecules and antibodies. Other applications not tested.
Recommended Dilution:Optimal dilutions to be determined by the researcher.
Storage and Stability:Aliquot to avoid repeated freezing and thawing and store at -70°C. Aliquots are stable for 6 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
仕様
Size：100ug
Source Antigen：Recombinant, HEK293 cells
Grade：Purified
Purity：Purified (~70%)
Form：Supplied as a liquid in 40mM Tris-HCl, pH 8.0, 110mM sodium chloride, 2.2mM potassium chloride, 20% glycerol.
