| Conjugation: | Unconjugated |
| Dilution Range: | Reconstitute in sterile water for a stock solution. |
| Formulation: | Lyophilized from a solution in PBS pH 7.4, 5% Trehalose, 5% Mannitol. |
| Storage Instruction: | Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for one week. Store at-20 to-80°C for twelve months from the date of receipt. |
| Endotoxin: | <0.1 EU/Mu g of the protein by the LAL method. |
| Immunoreactivity: | Measured by its ability to inhibit the IL-2-dependent proliferation of human megakaryocytic leukemic cells (MO7e). The ED50 for this effect is 0.045-0.3 µg/mL in the presence of 30 ng/mL of recombinant human IL-2. |
