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Tumor Necrosis Factor Receptor 2 Soluble, Recombinant, Human (sTNFR 2)
Tumor Necrosis Factor Receptor 2 Soluble, Recombinant, Human (sTNFR 2)
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| TNFRII is a member of the TNFR family of transmembrane proteins, and is expressed in immune cells and certain endothelial cells. It is a high affinity receptor for TNF-alpha but manifests a lower affinity to TNF-beta. Signaling through this receptor regulates various biological processes including cell proliferation, differentiation, apoptosis, lipid metabolism, coagulation, and neurotransmission. Soluble TNFRII is capable of inhibiting TNF-alpha induced activities by acting as a decoy receptor. Recombinant human sTNFRII is an 18.9kD protein (174 amino acid residues) comprising the cysteine rich ligand binding portion of the extracellular domain of the TNFRII protein. | | | Catalog # | T9162-75 | | Biological Activity | Determined by its inhibitory effect of the TNF-alpha mediated cytotoxicity in murine L-929 cells. The ED50 for this effect in the presence of 0.25ng/ml of recombinant human TNF-alpha, is 0.125ug/ml. | | Amino Acid Sequence | MAPEPGSTCR LREYYDQTAQ MCCSKCSPGQ HAKVFCTKTS DTVCDSCEDS TYTQLWNWVP ECLSCGSRCS SDQVETQACT REQNRICTCR PGWYCALSKQ EGCRLCAPLR KCRPGFGVAR PGTETSDVVC KPCAPGTFSN TTSSTDICRP HQICNVVAIP GNASMDAVCT STSP | | Storage and Stability | Lyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute with sterile ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Reconstituted product is stable for 6 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer. | | Molecular Weight | 18.9kD | | Source | Recombinant corresponding to 174aa from the cysteine rich ligand binding portion of the extracellular domain of the human TNFRII protein expressed in E. coli | | Purity | 98% by SDS-PAGE and HPLC. Endotoxin: | | 0.1ng/ug (1EU/ug) | | Form | Suppllied as a lyophilized powder from 10mM sodium phosphate, pH 8.0, 50mM sodium chloride. Reconstitute with sterile ddH2O to a concentration of 0.1-1mg/ml. Do not vortex. |
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