||Recombinant Human IL1Ra produced inE.Coliis single, a non-glycosylated, Polypeptide chain containing 152 amino acids fragment (26-177) and having a total molecular mass of 17 kDa with an amino-terminal his-tagged. The IL-1Ra His is purified by proprietary chromatographic techniques.
||IL-1Ra is the natural antagonist of the pro-inflammatory cytokines Interleukin-1α and Interleukin-1β. IL-1Ra is produced by a variety of cells including monocytes, macrophages, neutrophils and fibroblasts in response to the binding of various pro-inflammatory cytokines.
||Sterile Filtered clear solution.
||Greater than 95.0% as determined by: (a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.
||Interleukin-1Ra His-tag protein is supplied in 1x PBS and 50% glycerol.
||Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. Please avoid freeze thaw cycles.