500μg / 50μg / 10μg / 1mg

Human

E.coli

Cys24-Glu188

Cys24-Glu188

P01563

19.4 kDa

17 kDa

Measured in antiviral assay using A549 human lung cancer cells infected with vesicular stomatitisvirus (VSV). The ED50 for this effect is 5 ng/mL.

> 95% as determined by reducing SDS-PAGE.

< 0.1 EU/μg

Lyophilized from a 0.2 μm filtered solution of 20 mM PB, 150 mM NaCl, pH 7.2.

Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 μg/mL. Dissolve the lyophilized protein in sterile water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.

Lyophilized protein should be stored at -5~-20℃, stable for one year after receipt. Reconstituted protein solution can be stored at 2-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at -5~-20℃ for 3 months.

Ambient temperature or ice pack.

12个月

At least 23 different variants of IFN-α are known. The individual Proteins have molecular masses between 19-26 kDa and consist of Proteins with lengths of 156-166 and 172 amino acids. All IFN-α subtypes possess a common conserved sequence region between amino acid positions 115-151 while the amino-terminal ends are variable. Many IFN-α subtypes differ in their sequences by only one or two positions. Naturally occurring variants also include Proteins that are truncated by 10 amino acids at the carboxyl-terminal end.