Technical Data
T9160-10E
Tumor Necrosis Factor alpha, Recombinant, Human (TNFa)
10ug
50ug
Growth Factors, Cytokines Storage: -20°CShipping: Blue Ice
Human TNF is a 17kD factor produced by macrophages, monocytes, neutrophils, CD4+ T cells and NK cells. A 26kD form of TNF is expressed as a membrane bound molecule. TNF is cytolytic and plays an important role in immune regulation. Dimers and trimers of TNF have been observed.

Source:
Escherichia coli.

Biological Activity:
The ED50 as determined by the cytolysis of murine L929 cells in the presence of Actinomycin D is 0.05ng/ml, corresponding to a Specific Activity of 2 x10e7 IU/mg.

Endotoxin: 1EU/ug (LAL)

Storage and Stability:
Lyophilized powder may be stored at -20°C. Stable for 6 months at -20°C. Reconstitute with sterile ddH2O. Aliquot and store at -20°C. Reconstituted product is stable for 1 month at 4 °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:
~17.5kD
Source: E. coli
Purity: 97% as determined by SDS-PAGE and HPLC.
Form: Supplied as a lyophilized powder from 15mMNa2HPO4, 0.3M sodium chloride. Reconstitute with sterile dH2O to 0.1mg/ml.

Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.