| 货号 | IC25261S-100UG |
| 别名 | IL-27 p28 subunit; IL-27 subunit alpha; IL27; IL-27; IL27A; IL-27-A; IL27-A; IL27p28; IL30; interleukin 27; interleukin 30; interleukin-27 subunit alpha; MGC71873; p28IL-27A | 全称 | Interleukin 27 |
| 应用 | Intracellular Staining by Flow Cytometry |
| 目标/特异性 | Detects human IL-27 in direct ELISAs. |
| 使用方法 | Intracellular Staining by Flow Cytometry: 0.25-1 µg/106cells |
| 来源 | The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below. |
| 产品组分 |
| 供应商 | R&D Systems |
| Entrez Gene IDs | 246778 (Human); 246779 (Mouse) |
| 免疫原 | Mouse myeloma cell line NS0-derived recombinant human IL‑27 Arg21-Lys229 of EBI-3 (Accession #Q14213.2) and Phe29-Pro243 of p28 (Accession #AAM34498) |
| 生物活性 | Human |
| 标记 | Alexa Fluor 750 |
| 背景 | IL-27 is a heterodimeric group 2 receptor ligand molecule that belongs to the IL-6/IL-12 family of long type I cytokines (1). It is composed of EBI3 (EBV-induced gene 3), a 34 kDa glycoprotein that is related to the p40 subunit of IL-12 and IL-23, and p28, the 28 kDa glycoprotein that is related to the p35 chain of IL-12 (2-4). The human EBI3 gene encodes a 229 amino acid (aa) precursor that contains a 20 aa signal peptide and 209 aa mature protein (5). The mature region contains two potential N-linked glycosylation sites, two fibronectin type III domains, and two pairs of conserved cysteine residues with a WSXWS-like motif that places the molecule in the hematopoietin receptor family (5). Although p40, the EBI3 counterpart in IL-12, is known to form homodimers, there is no evidence to date that EBI3 also homodimerizes. Human EBI3 is 61% aa identical to mouse EBI3. The human p28 gene encodes a 243 aa precursor that contains a 28 aa signal sequence and 215 aa mature region (6). The mature region is characterized by the presence of four alpha -helices, placing it in the IL-6 family of helical cytokines. Human p28 is 74% aa identical to mouse p28. IL-27 is expressed by monocytes, endothelial cells and dendritic cells (7). IL-27 binds to and signals through a heterodimeric receptor complex composed of WSX-1 (TCCR) and gp130. Evidence suggests IL-27 interacts only with WSX-1 (6, 8, 9). IL-27 has both anti- and proinflammatory properties. As an anti‑inflammatory, IL-27 seems to induce a general negative feedback program that limits T and NK-T cell activity (3, 7). At the onset of infection, IL-27 induces an IL‑12 receptor on naïve CD4+ T cells, making them susceptible to subsequent IL-12 activity (and possible Th1 development) (10). |
| 运输条件 | Blue Ice |
| 存放说明 | 4℃ |
| 参考文献 |
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