ED50: <0.183 ng/ml, as determined by the dose-dependant stimulation of the proliferation of human TF-1 cells (human erythroleukemic indicator cell line), corresponding to a Specific Activity of 5,500,000 IU/mg.
Purity
>97% as determined by RP-HPLC and SDS-PAGE.
Product Form
Lyophilized
Concentration
1 mg/ml
Formulation
Lyophilized from 10 mM Phosphate Buffered Saline, pH 7, with 40 mg Mannitol and 10 mg sucrose.
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.
