The activity is determined by it's ability to activate STAT following receptor-ligand interaction.
Purity
>99% as determined by RP-HPLC and SDS-PAGE.
Product Form
Lyophilized
Concentration
1 mg/ml
Formulation
Lyophilized from a solution containing 10 mM Sodium Citrate, pH 5.
Storage
Shipped at ambient temperature. Lyophilized: Short term (3 weeks) store at 25°C. Long term store desiccated below -18°C. Reconstituted: Short term (2-7 days) store at 4°C. Long term store below -18°C, it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid freeze/thaw cycles.
