IL15 Protein LS-G3644 is Recombinant Human IL15 in E. coli It is biologically active and is low in endotoxin Less than 0.01 ng/µg of protein (Less than 0.1 EU/µg)..
Greater than 98% by SDS-PAGE and HPLC
The ED50 as determined by the dose-dependent stimulation of the proliferation of CTLL-2 cells was found to be <=0.5 ng/ml, corresponding to a specific activity of >=2 x 10^6 units/mg.
Less than 0.01 ng/µg of protein (Less than 0.1 EU/µg).
If lyophilized, can be stored for 1 month at room temperature, 6 months at 4°C, or through the expiration date at -20°C to -80°C. Once reconstituted per the supplied instructions, can be stored for 3 months at -20°C to -80°C, or for 1 week at 2°C to 8°C. Avoid freeze-thaw cycles.
For research use only.