Q86UP4

The sequence of the first five N-terminal amino acids was determined and was found to be Met-Cys-Asp-Leu-Pro.

The specific activity as determined in a viral resistance assay using VSV-WISH cells was found to be 1,000,000 IU/mg.

IFN-a 2b was lyophilized after extensive dialysis against 10mM Phosphate buffer, pH7.0, 150mM NaCl, 0.01% EDTA and 0.01% Tween 80 buffer.

Sterile Filtered White lyophilized (freeze-dried) powder.

Greater than 98.0% as determined by:
a) Analysis by RP-HPLC.
b) Analysis by SDS-PAGE.

It is recommended to reconstitute the lyophilized Interferon alpha 2b in sterile 18MΩ-cm H₂O not less than 100ug/ml, which can then be further diluted to other aqueous solutions.

Escherichia Coli.

Lyophilized Interferon although stable at room temperature for 3 weeks, should be stored desiccated below -18^oC. Upon reconstitution the Pegylated IFN alpha 2b should be stored at 4^oC between 2-7 days and for future use below -18^oC.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Please prevent freeze-thaw cycles.

Interferon alpha 2b, IFNA, INFA2, MGC125764, MGC125765.