Endotoxin level is <0.1 ng/ug of protein (<1 EU/ug).
The ED50 was determined by the dose-dependent stimulation of the proliferation of human TF-1 cells is 0.5-0.8 ug/mL.
Activity assay SDS-PAGE The optimal working dilution should be determined by the end user.
Lyophilized from 2.5 mM Tris (pH 10.2, 0.5 mM DTT).
Store at -20°C. Reconstitute in water to a concentration of 0.1-1.0 mg/mL. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.