The sequence of the first five N-terminal amino acids was determined and was found to be Met-Leu-Arg-Arg-Cys.
The activity is determined by it's ability to activate STAT following receptor-ligand interaction.
Lyophilized from a concentrated (1mg/ml) solution in water containing 10mM sodium citrate pH-5.
Sterile Filtered White lyophilized (freeze-dried) powder.
Greater than 99.0% as determined by(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.
It is recommended to reconstitute the lyophilized Interleukin -19 in sterile 18MΩ-cm H2O at a concentration of 0.5mg/ml or less.
Lyophilized Interleukin-19 although stable at room temperature for 3 weeks, should be stored desiccated below -18oC. Upon reconstitution IL19 should be stored at 4oC between 2-7 days and for future use below -18oC.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Please avoid multiple freeze-thaw cycles.
Melanoma differentiation association like protein, MDA1, NG.1, ZMDA1, IL-10C, IL-19.
