Human Interleukin-21 (hIL-21) #8920
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Product Name
Inquiry Info. # 8920
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Product Information
Formulation
Storage
Maintain sterility. Storage at -20°C should be in a manual defrost freezer.
Product Description
| MW (kDa) | 16 |
| Purity | >98% as determined by SDS-PAGE of 6 μg reduced (+) and non-reduced (-) recombinant hIL-21. Less than 9% is nicked after Arg114 to generate 6 kDa and 10 kDa polypeptides observed in reduced (+) hIL-21. |
| Endotoxin | Less than 0.01 ng endotoxin/1 μg hIL-21. |
| Activity | The bioactivity of recombinant hIL-21 was determined by its ability to induce IFN-γ production by NK-92 cells. The ED50 of each lot is between 1.0-6.0 ng/ml. |
| Molecular Formula | Recombinant hIL-21 contains no "tags" and the nonglycosylated protein has a calculated MW of 15,463. DTT-reduced and non-reduced protein migrate as 16 kDa polypeptides, with non-reduced having slightly greater mobility due to intramolecular cystines. The expected amino-terminal QGQDR of recombinant hIL-21 was verified by amino acid sequencing. |
Source / Purification
Background
Limited Uses
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