Source:Human embryonic kidney cell, HEK293-derived, Ala279-Ser390
N-terminal Sequence Analysis:Ala279
Purity:>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Predicted Molecular Mass:12.8 kDa (monomer)
SDS-PAGE:11 kDa, reducing conditions
Activity:Measured by its ability to inhibit the IL-4-dependent proliferation of HT‑2 mouse T cells. Tsang, M. et al. (1995) Cytokine 7:389.
The ED50 for this effect is typically 0.04-0.2 ng/mL.