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R&D Systems™ Recombinant Human IL-21 Animal Free Protein
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Quantity:
25 μg
Description
Measured by its ability to enhance IFN-gamma secretion in NK-92 human natural killer lymphoma cells. The ED50 for this effect is ≤8 ng/mL.
Specifications
Specifications
Accession Number | Q9HBE4.3 |
For Use With (Application) | Bioactivity |
Formulation | Lyophilized from a 0.2 μm filtered solution in PBS. |
Gene ID (Entrez) | 59067 |
Molecular Weight (g/mol) | M.W.-observed: 16 kDa, reducing conditions, M.W.-theroretical: 15 kDa |
Quantity | 25 μg |
Source | E. coli-derived human IL-21 protein Gln32-Ser162, with a N-terminal Met Produced in an animal-free laboratory. |
Storage Requirements | Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20°C to -70°C as supplied. 1 month, 2°C to 8°C under sterile conditions after reconstitution. 3 months, -20°C to -70°C under sterile conditions after reconstitution. |
Endotoxin Concentration | <0.10 EU / 1 μg of the protein by the LAL method. |
Gene Alias | CVID11, IL21, IL-21 Za11interleukin-21, interleukin 21, interleukin-21 isoform, Za11 |
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