Cat#:RP-2341R;Product Name:Recombinant Rat IL1RA Protein(His Tag);Synonym:Interleukin-1 receptor antagonist protein, IL-1RN, IL-1ra, IRAP, IL1 inhibitor, Il1rn, Il-1ra, Interleukin-1 Receptor Antagonist, IL-1ra, IL 1RA.;Description:IL 1RA Rat Recombinant produced in E.coli is a single, non-glycosylated polypeptide chain containing 175 amino acids (27-178a.a.) and having a molecular mass of 19.8kDa. IL 1RA is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.;Source:E.coli;Purity:>90.0% as determined by analysis by SDS-PAGE.;Formulation:IL 1RA protein solution (1mg/ml) containing Phosphate Buffer Saline (pH7.4), 10% glycerol and 1mM DTT.;Stability:Recombinant Proteins are stable for up to 1 year from date of receipt at -70℃;Storage:Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid repeated freeze-thaw cycles.;