Tumor Necrosis Factor Receptor 2 Soluble, Recombinant, Human (sTNFR 2)

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.\n\nBiological Activity:\nDetermined 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.\n\nAmino Acid Sequence:\nMAPEPGSTCR LREYYDQTAQ MCCSKCSPGQ HAKVFCTKTS DTVCDSCEDS TYTQLWNWVP ECLSCGSRCS SDQVETQACT REQNRICTCR PGWYCALSKQ EGCRLCAPLR KCRPGFGVAR PGTETSDVVC KPCAPGTFSN TTSSTDICRP HQICNVVAIP GNASMDAVCT STSP\n\nStorage and Stability:\nLyophilized powder may be stored at -20 degrees C. Stable for 12 months at -20 degrees C. Reconstitute with sterile ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Reconstituted product is stable for 6 months at -20 degrees 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.

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SPECIFICATIONS

Catalog Number

T9162-75

Size

5ug

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.

Purity

(same/more than)98% by SDS-PAGE and HPLC. Endotoxin:\n(same/less than)0.1ng/ug (1EU/ug)