IL-21

• Accession Number:

  Q9HBE4

• Expression Region:

  His25-Ser162

• Expression System:

  CHO

• Tag:

  Tag free

• Stability:

  36 months at -20°C to -80°C in lyophilized state 6 months at -20°C to -80°C under sterile conditions after reconstitution 7-10 days at 2°C to 8°C under sterile conditions after reconstitution Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

• Endotoxin:

  ≤10 EU/mg

• Purity:

  ≥ 95% as determined by SDS-PAGE

• Activity:

  Measured by its ability to enhance IFN-gamma secretion in NK-92 human natural killer lymphoma cells. The ED50 for this effect is ≤ 20 ng/mL.

• Reconstitution:

  It is recommended to redissolve in sterile deionized water

• Molecular Weight:

  15.9 kDa

• Shipping Conditions:

  Blue Ice

• Appearance:

  White powder, Colorless clear liquid after reconstitution

• Formulation:

  Lyophilized from a 0.22 μm-filtered solution containing PBS, 5% mannitol and 0.01% Tween 80, pH 7.4

• Product Name Synonym:

  Interleukin-21; IL-21; Za11; IL21

• Species:

  Human