Interleukin-8 (1-77 a.a.) Human Recombinant, (CXCL8) Pichia

Lyophilized powder at room temperature.

Interleukin-8 Human Recombinant produced in Yeast is a single, glycosylated polypeptide chain containing 79 amino acids and having a molecular mass of 9 kDa. The IL-8 is purified by proprietary chromatographic techniques.
Source: Pichia Pastoris.
Physical Appearance and Stability: Lyophilized Interleukin-8 although stable at room temperature for 3 weeks, should be stored desiccated below -18C. Upon reconstitution CXCL8 should be stored at 4C between 2-7 days and for future use below -18C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
Formulation and Purity: Lyophilized from a concentrated (1mg/ml) solution in water containing 20mM sodium phosphate buffer pH-8. Greater than 98.0% as determined by SDS-PAGE.
Solubility: It is recommended to reconstitute the lyophilized Interleukin 8 in sterile 18MO-cm H2O not less than 100ug/ml, which can then be further diluted to other aqueous solutions.
Biological Activity: Specific Activity of IL8 in chemotaxis of donor PBL neutrophils, threshold concentration of 25ng/ml corresponding to a Specific Activity of 40, 000IU/mg.