ED50: <0.5 ng/ml, as determined by the dose-dependent stimulation of thymidine uptake by murine pre-B cell line 2E8, corresponding to a specific activity of >2 x 106 U/mg.
Purity
>98% as determined by SDS-PAGE.
Product Form
Lyophilized
Concentration
1 mg/ml
Formulation
Lyophilized from 20 mM Phosphate Buffer.
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.
