IL-4 Recombinant Protein

Product Specifications

Product Name Alternative

BSF1, IL-4, BCGF1, BSF-1, BCGF-1, Interleukin-4, B-cell stimulatory factor 1

UniProt

P05112

Source

E. coli

Field of Research

Immunology & Inflammation

Purity

Greater than 98% by SDS-PAGE gel and HPLC analyses.

Bioactivity

The ED50 was determined by the dose-dependent stimulation of the proliferation of human TF-1 cells is = 0.2 ng/mL, corresponding to a specific activity of = 5 x 106 units/mg.

Form

Lyophilized

Storage Conditions

The lyophilized IL-4 recombinant protein is stable for at least 2 years from date of receipt at -20°C. Reconstituted IL-4 is stable for at least 3 months when stored in working aliquots with a carrier protein at -20°C. As with any protein, exposing IL-4 recombinant protein to repeated freeze / thaw cycles is not recommended. When working with proteins care should be taken to keep recombinant protein at a cool and stable temperature.