The activity is determined by the dose-dependant production of IL-8 by human PBMCs, the ED50 is 322 - 488 ng/mL.
Storage Buffer:
Lyophilized from with no additives
Storage Instruction:
Lyophilized although stable at room temperature for 3 weeks. should be stored desiccated below -20°C. Upon reconstitution should be stored at 4°C between 2-7 days and for future use below -20°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Aliquot to avoid repeated freezing and thawing.