Source:Recombinant corresponding to 162aa from human Tumor Necrosis Factor Receptor 1 expressed in E. coli.
Molecular Weight:~18.3kD
Biological Activity:ED50=0.05ug/ml. The biological activity was determined by measuring the inhibition of TNF-a mediated cytotoxicity in murine L929 cells in the presence of 0.25ng/ml TNF-a. sTNF-RI is also known as sCD120a and p60.
Endotoxin: ~0.1ng/ug
Storage and Stability:Lyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute with sterile buffer. Aliquot to avoid repeated freezing and thawing. Store 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.
仕様
Size：20ug
Source Antigen：Recombinant, E. coli
Grade：Highly Purified
Purity：~98% (SDS-PAGE, HPLC)
Form：Supplied as a lyophilized powder 5mM Tris, pH 8.0. Reconstitute with 5mM Tris, pH 8.0, to 1mg/ml.
