Molecular Weight:
Dimer, 15.7/31.3 kDa (137/274 aa)
Formulation:
Lyophilized from a sterile filtered solution containing 0.1% Trifluoroacetic Acid (TFA).
Biological Activity:
The protein has full biological activity when compared to the standard. The ED50, as determined by dose-dependent production of IL-6 by mouse 3T3 cells, is < 10 ng/ml.
Specific Activity:
> 1.0 x 105 U/mg
