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IL-21 Protein, Canine, Recombinant is expressed in E. coli expression system. The predicted molecular weight is 15 kDa and the accession number is Q6L7I9.

| Pack Size | Price | Availability | Quantity |
|---|---|---|---|
| 5 μg | $98 | 7-10 days | |
| 10 μg | $167 | 7-10 days | |
| 20 μg | $275 | 7-10 days | |
| 50 μg | $498 | 7-10 days | |
| 100 μg | $896 | 7-10 days |
| Biological Activity | Measured by its ability to induce Interferon gamma secretion by human natural killer lymphoma NK-92 cells. The ED50 for this effect is typically 0.4-2 ng/ml. |
| Description | IL-21 Protein, Canine, Recombinant is expressed in E. coli expression system. The predicted molecular weight is 15 kDa and the accession number is Q6L7I9. |
| Species | Canine |
| Expression System | E. coli |
| Tag | Tag Free |
| Accession Number | Q6L7I9 |
| Synonyms | interleukin 21 |
| Construction | A DNA sequence encoding the canine IL21 (Q6L7I9) (His 18-Ser 146) was expressed, with an initial Met at the N-terminus. Predicted N terminal: Met |
| Protein Purity | > 97 % as determined by SDS-PAGE |
| Molecular Weight | 15 kDa (predicted); 15 kDa (reducing conditions) |
| Endotoxin | Please contact us for more information. |
| Formulation | Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization. |
| Reconstitution | A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information. |
| Stability & Storage | It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots. |
| Shipping | In general, Lyophilized powders are shipping with blue ice. |
| Research Background | IL21 belongs to the IL-15/IL-21 family. It is a cytokine with immunoregulatory activity. Cytokines are proteinaceous signaling compounds that are major mediators of the immune response. They control many different cellular functions including proliferation, differentiation, and cell survival/apoptosis but are also involved in several pathophysiological processes including viral infections and autoimmune diseases. Cytokines are synthesized under various stimuli by a variety of cells of both the innate (monocytes, macrophages, dendritic cells) and adaptive (T- and B-cells) immune systems. IL21 is expressed in activated CD4-positive T-cells but not in CD8-positive T-cells, B-cells, or monocytes. It may promote the transition between innate and adaptive immunity. IL-21 has been tried as a therapy for alleviating allergic responses. It can significantly decrease pro-inflammatory cytokines produced by T cells in addition to decreasing IgE levels in a mouse model for rhinitis (nasal passage inflammation).Cancer ImmunotherapyImmune CheckpointImmunotherapyTargeted Therapy |

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