| 货号 | AF309-SP |
| 别名 | CLMF2; IL12B; IL-12B; NKSF2 | 全称 | Interleukin 12/Interleukin 23 p40 |
| 反应种属 | Human |
| 应用 | Western Blot(1 µg/mL) |
| 目标/特异性 | Detects human IL-12/IL-23 p40 in direct ELISAs and Western blots. In direct ELISAs, no cross-reactivity with recombinant human IL-23 p19 and recombinant mouse IL-23 p19 was observed. |
| 使用方法 | Western Blot: 1 µg/mL Neutralization: Measured by its ability to neutralize IL‑23-induced IL-17 secretion in mouse splenocytes. Aggarwal, S. et al. (2003) J. Biol. Chem. 278:1910. The Neutralization Dose (ND50) is typically 0.004-0.02 μg/mL in the presence of 0.75 ng/mL Recombinant Human IL‑23. |
| 来源 | Polyclonal Goat IgG |
| 产品组分 |
| 供应商 | R&D Systems |
| Entrez Gene IDs | 3593 (Human); 16160 (Mouse); 64546 (Rat); 403976 (Canine); 493741 (Feline) |
| 应用文献 | |
| R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions. Clustering of disulfide-rich peptides provides scaffolds for hit discovery by phage display: application to interleukin-23 | |
| 纯化方式 | Antigen Affinity-purified |
| 免疫原 | S. frugiperda insect ovarian cell line Sf 21-derived recombinant human IL-12/IL-23 p40 p40: Ile23-Ser328, Accession # P29460; p19: Ala21-Pro189, Accession # AAG37232 |
| 内毒素水平 | <0.10 EU per 1 μg of the antibody by the LAL method. |
| 生物活性 | Human |
| 标记 | Unconjugated |
| 溶解方法 | Reconstitute at 0.2 mg/mL in sterile PBS. |
| 背景 | Interleukin 23 (IL-23) is a heterodimeric cytokine composed of two disulfide-linked subunits, a p19 subunit that is unique to IL-23, and a p40 subunit that is shared with IL-12 (1‑5). The p19 subunit has homology to the p35 subunit of IL-12, as well as to other single chain cytokines such as IL-6 and IL-11. The p40 subunit is homologous to the extracellular domains of the hematopoietic cytokine receptors. Human p19 cDNA encodes a 189 amino acid residue (aa) precursor protein with a putative 19 aa signal peptide and 170 aa mature protein. Human and mouse p19 share 70% aa sequence identity. Although p19 is expressed by activated macrophages, dendritic cells, T cells, and endothelial cells, only activated macrophages and dendritic cells express p40 concurrently to produce IL-23. The functional IL-23 receptor complex consists of two receptor subunits, the IL-12 receptor beta 1 subunit (IL-12 R beta 1) and the IL-23-specific receptor subunit (IL-23 R). IL-23 has biological activities that are similar to, but distinct from IL-12. Both IL-12 and IL-23 induce proliferation and IFN-gamma production by human T cells. While IL-12 acts on both naïve and memory human T cells, the effects of IL-23 is restricted to memory T cells. In mouse, IL-23 but not IL-12, has also been shown to induce memory T cells to secret IL-17, a potent proinflammatory cytokine. IL-12 and IL-23 can induce IL-12 production from mouse splenic DC of both the CD8- and CD8+ subtypes, however only IL-23 can act directly on CD8+ DC to mediate immunogenic presentation of poorly immunogenic tumor/self peptide. |
| 运输条件 | Blue Ice |
| 存放说明 | 4℃ |
| 参考文献 |
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Detection of Human IL‑12/IL‑23 p40 by Western Blot. Western blot shows lysates of Hs 294T human melanoma cell line. PVDF Membrane was probed with 1 µg/mL of Goat Anti-Human IL‑12/IL‑23 p40 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF309) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF019). A specific band was detected for IL‑12/IL‑23 p40 at approximately 40 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 8. | |
Il-17 Secretion Induced by IL‑23 and Neutralization by Human IL‑12/IL‑23 p40 Antibody. Recombinant Human IL‑23 (Catalog # 1290-IL) induces IL-17 secretion in the mouse splenocytes in a dose‑dependent manner (orange line), as measured by Mouse IL-17 Quantikine kit. IL-17 Secretion elicited by Recombinant Human IL‑23 (0.75 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti‑Human IL‑12/IL‑23 p40 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF309). The ND50 is typically 0.004-0.02 μg/mL. |
