Animal Free Human IL-21 protein (Recombinant) (No-Tag) (STJP019426)
SPECIFICATIONS
HostE.coli
General Information
| Short Description | Recombinant-Animal Free Human IL-21-No-Tag protein was developed from e.coli and has a target region of No-Tag. For use in research applications. |
| Applications | SDS-PAGE/Bioactivity |
| Host | E.coli |
| Note | STRICTLY FOR FURTHER SCIENTIFIC RESEARCH USE ONLY (RUO). MUST NOT TO BE USED IN DIAGNOSTIC OR THERAPEUTIC APPLICATIONS. |
Product Properties
| Concentration | 0.25 mg/mL |
| Formulation | Liquid in phosphate-Buffered Saline (pH 7.4) |
| Storage Instruction | For short term storage, keep at +2C to +8C for up to 1 week. For long term storage, aliquot and store at-20C, and avoid repeat freeze-thaw cycles. |
| Endotoxin | < 1 EU per 1ug of protein (determined by LAL method) |
| Immunoreactivity | The activity is determined by the IFN-Gamma ELISA in a using NK-92 human natural killer cells. The ED50 range ≤ 4 ng/ml. |
Target Information
| Gene Symbol | IL21 |
| Gene ID | 59067 |
| Uniprot ID | IL21_HUMAN |
| Accession Number | NP_068575 |
| Immunogen Region | 30-162aa |
| Immunogen Sequence | MQGQDRHMIR MRQLIDIVDQ LKNYVNDLVP EFLPAPEDVE TNCEWSAFSC FQKAQLKSAN GNNERIINV SIKKLKRKPP STNAGRRQKH RLTCPSCDSY EKKPPKEFLE RFKSLLQKMI HQHLSSRTHG SEDS |
Additional Info
| Tissue Specificity | Expressed in activated CD4-positive T-cells but not in CD8-positive T-cells, B-cells, or monocytes. |
| Function | Cytokine with immunoregulatory activity. May promote the transition between innate and adaptive immunity. Induces the production of IgG(1) and IgG(3) in B-cells. Implicated in the generation and maintenance of T follicular helper (Tfh) cells and the formation of germinal-centers. Together with IL6, control the early generation of Tfh cells and are critical for an effective antibody response to acute viral infection. May play a role in proliferation and maturation of natural killer (NK) cells in synergy with IL15. May regulate proliferation of mature B- and T-cells in response to activating stimuli. In synergy with IL15 and IL18 stimulates interferon gamma production in T-cells and NK cells. During T-cell mediated immune response may inhibit dendritic cells (DC) activation and maturation. |
| Protein Name | Interleukin-21Il-21Za11 |
| Database Links | Reactome: R-HSA-9020958 |
| Cellular Localisation | Secreted |
| Alternative Protein Names | Interleukin-21 proteinIl-21 proteinZa11 proteinIL21 protein |
Information sourced from Uniprot.org