ED50: 0.16 ng/ml, as determined by the dose-dependent inhibition of IL-4 induced proliferation of mouse HT-2 cells (BALB/c spleen activated by sheep erythrocytes in the presence of IL-2).
Purity
>95% as determined by SDS-PAGE.
Product Form
Lyophilized
Concentration
Reconstitution dependent.
Formulation
Lyophilized from a solution containing 50 mM Sodium Acetate, pH 4.5.
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.
