Cat#:RP-4040H;Product Name:Recombinant Human IL19 Protein;Synonym:Melanoma differentiation association like protein, MDA1, NG.1, ZMDA1, IL-10C, IL-19.;Description:Interleukin-19 Protein produced in E.coli is a single, non-glycosylated polypeptide chain containing 155 amino acids and having a molecular mass of 17913 Dalton. The IL-19 is purified by proprietary chromatographic techniques.;Source:E.coli;AA Sequence:The sequence of the first five N-terminal amino acids was determined and was found to be Met-Leu-Arg-Arg-Cys.;Purity:Greater than 99.0% as determined by(a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.;Bioactivity:The activity is determined by it's ability to activate STAT following receptor-ligand interaction.;Formulation:Lyophilized from a concentrated (1mg/ml) solution in water containing 10mM sodium citrate pH-5.;Stability:Recombinant Proteins are stable for up to 1 year from date of receipt at -70℃;Reconstitution:It is recommended to reconstitute the lyophilized Interleukin -19 in sterile 18MΩ-cm H2O at a concentration of 0.5mg/ml or less.;Storage:Lyophilized Interleukin-19 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IL19 should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.;