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IL-21 Antibody
- 产品详情
- 实验流程
- 背景知识
Application 
| WB, ICC, E |
|---|---|
| Primary Accession | Q9HBE4 |
| Other Accession | NP_068575, 11141875 |
| Reactivity | Human |
| Host | Rabbit |
| Clonality | Polyclonal |
| Isotype | IgG |
| Calculated MW | 18653 Da |
| Conjugate | Unconjugated |
| Application Notes | IL-21 antibody can be used for detection of IL-21 by Western blot at 1 µg/mL. Antibody can also be used for immunocytochemistry starting at 2 µg/mL. |
| Gene ID | 59067 |
|---|---|
| Other Names | IL-21 Antibody: Za11, IL-21, Interleukin-21, Za11, interleukin 21 |
| Target/Specificity | IL21; At least two isoforms of IL-21 are known to exist; this antibody will detect both isoforms. IL-21 antibody is predicted to not cross-react with other members of the interleukin protein family. |
| Reconstitution & Storage | IL-21 antibody can be stored at 4℃ for three months and -20℃, stable for up to one year. As with all antibodies care should be taken to avoid repeated freeze thaw cycles. Antibodies should not be exposed to prolonged high temperatures. |
| Precautions | IL-21 Antibody is for research use only and not for use in diagnostic or therapeutic procedures. |
| Name | IL21 (HGNC:6005) |
|---|---|
| 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 (By similarity). 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 (By similarity). 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 (PubMed:11081504, PubMed:15178704). During T-cell mediated immune response may inhibit dendritic cells (DC) activation and maturation (By similarity). |
| Cellular Location | Secreted. |
| Tissue Location | Expressed in activated CD4-positive T-cells but not in CD8-positive T-cells, B-cells, or monocytes |
For Research Use Only. Not For Use In Diagnostic Procedures.
Provided below are standard protocols that you may find useful for product applications.
BACKGROUND
IL-21 Antibody: A novel cytokine was recently identified in human and mouse and designated IL-21, which has significant homology to IL-2, IL-4, and IL-15. The receptor for IL-21 (IL-21R, also termed NILR for novel Interleukin receptor) is a new member of the class I cytokine receptor family. IL-21R forms a complex with the common cytokine receptor gamma chain, gammac, and mediates IL-21 signaling. IL-21 and its receptor activate JAK-STAT signaling pathway. IL-21 is expressed in activated T cells, and HL-60 and THP-1 cell lines. IL-21 plays a role in the proliferation and maturation of NK, B and T cell populations.
REFERENCES
Parrish-Novak J, Dillon SR, Nelson A, et al. Interleukin 21 and its receptor are involved in NK cell expansion and regulation of lymphocyte function. Nature 2000; 408:57-63.
Ozaki K, Kikly K, Michalovich D, et al. Cloning of a type I cytokine receptor most related to the IL-2 receptor β chain. Proc. Natl. Acad. Sci. USA. 2000; 97:11439-44.
Asao H, Okuyama C, Kumaki S, et al. The common γ-chain is an indispensable subunit of the IL-21 receptor complex. J. Immunol. 2001; 167:1-5.
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