Recombinant Rat IL-21 Protein(Gst Tag) (RPES8245)
- SKU:
- RPES8245
- Size:
- 20μg
- Tag:
- N-Gst
- Reactivity:
- Rat
- Expression Host:
- E.coli
- Accession:
- A3QPB9
Description
| Product Name: | Recombinant Rat IL-21 Protein (Gst Tag) |
| SKU: | RPES8245 |
| Size: | 20μg |
| Tag: | N-Gst |
| Reactivity: | Rat |
| Expression Host: | E.coli |
| Accession: | A3QPB9 |
| Sequence: | His18-Ser146 |
| Calculated Molecular Weight: | 40.1 kDa |
| Observed Molecular Weight: | 45 kDa |
| Synonyms: | Za11, Il21 |
| Endotoxin: | < 10 EU/mg of the protein as determined by the LAL method |
| Purity: | > 90% as determined by reducing SDS-PAGE. |
IL-21 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. IL-21 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).
| Bio-activity: | Not validated for activity |
| Formulation: | Lyophilized from a 0.2 μm filtered solution in PBS with 5% Trehalose and 5% Mannitol. |
| Reconstitution: | It is recommended that sterile water be added to the vial to prepare a stock solution of 0.5 mg/mL. Concentration is measured by UV-Vis. |
| Storage: | Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months. |
| Shipping: | This product is provided as lyophilized powder which is shipped with ice packs. |
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