Rat Tnf (NP_038721, 80 a.a. - 235 a.a.) partial recombinant protein with His tag expressed in Escherichia coli.
Host:
Rat
Theoretical MW (kDa):
19.9
Form:
Liquid
Preparation Method:
Escherichia coli expression system
Purity:
> 90% by SDS-PAGE
Endotoxin Level:
> 1 EU per 1ug of protein (determined by LAL method)
Activity:
Measured in a cytotoxicity assay using L929 mouse fibroblast cells in the presence of the metabolic inhibitor actinomycin D. The ED50 range ≤ 0.2 ng/ml.
Quality Control Testing:
3ug by SDS-PAGE under reducing condition and visualized by coomassie blue stain.
Recommend Usage:
SDS-PAGE The optimal working dilution should be determined by the end user.
Storage Buffer:
In PBS, pH 7.4 (1 mM DTT, 10% glycerol)
Storage Instruction:
Stored at 2°C to 8°C for 1 week. For long term storage, aliquot and store at -20°C to -80°C. Avoid repeated freezing and thawing cycles.
Note:
Result of bioactivity analysis
Tnf (Rat) Recombinant Protein stimulates cytotoxicity of the L929 mouse fibroblast cells. The ED50 range ≤ 0.2 ng/mL.