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| 货号 (SKU) | 包装规格 | 是否现货 | 价格 | 数量 |
|---|---|---|---|---|
| rp186564-10μg |
10μg |
现货 ![]() |
| |
| rp186564-50μg |
50μg |
期货 ![]() |
| |
| rp186564-100μg |
100μg |
期货 ![]() |
| |
| rp186564-1mg |
1mg |
期货 ![]() |
|
| 产品名称 | Recombinant Human IL-18 Protein |
|---|---|
| 别名 | 重组人IL-18蛋白 | 重组人白介素-18蛋白 |
| 英文别名 | Iboctadekin | IFN-gamma-inducing factor | IGIF | IGIFIL-1 gamma | IL18 | IL-18 | IL-18MGC12320 | IL-1F4 | IL1F4iboctadekin | IL-1g | Interferon gamma-inducing factor | interleukin 18 (interferon-gamma-inducing factor) | Interleukin-1 gamma | interleukin-1 |
| 规格或纯度 | ActiBioPure™, 无载体, 生物活性, ≥95%(SDS-PAGE) |
| 生化机理 | Interleukin-18 (IL-18, also known as interferon-gamma inducing factor) is a proinflammatory cytokine that belongs to the IL-1 superfamily and is produced by macrophages and other cells. This cytokine can induce the IFN-gamma production of T cells. The combination of IL-18 and IL12 has been shown to inhibit IL4 dependent IgE and IgG1 production, and enhance IgG2a production of B cells. IL-18 binding protein (IL18BP) can specifically interact with this cytokine, and thus negatively regulate its biological activity. IL-18 is an IL-1-like cytokine that requires cleavage with caspase-1 to become active, was found to increase IgE production in a CD4+ T cell -, IL-4- and STAT6-dependent fashion. IL-18 and T cell receptor-mediated stimulation could induce naive CD4+ T cells to develop into IL-4-producing cells in vitro. Thus, caspase-1 and IL-18 may be critical in the regulation of IgE production in vivo, providing a potential therapeutic target for allergic disorders. IL-18 production in primary synovial cultures and purified synovial fibroblasts was, in turn, upregulated by TNF-α and IL-1β, suggesting that monokine expression can feedback to promote Th1 cell development in the synovial membrane. Besides, synergistic combinations of IL-18, IL-12, and IL-15 may be of importance in sustaining both Th1 responses and monokine production in RA. Post-translational: The pro-IL-18 precursor is processed by CASP1, CASP4 or CASP5 to yield its mature, active form. The pro-IL-18 precursor features autoinhibitory interactions between the propeptide and the post-cleavage-site region, preventing recognition by the IL18R1 receptor. Processing by CASP1, CASP4 or CASP5 induces conformational changes to generate critical receptor-binding sites. The mature form is then secreted and released in the extracellular milieu by passing through the gasdermin-D (GSDMD) pore. In contrast, cleavage by CASP3 inactivates IL18. |
| 生物活性 | Immobilized Recombinant Human IL-18 Bpa Protein (rp169678) at 2.0 μg/mL can bind Recombinant Human IL-18 Protein (rp186564) with the EC50 of 30.0 ng/mL. Immobilized Recombinant IL-18 protein (rp186564) at 1.0 μg/mL can bind Camoteskimab (anti-IL-18) (Ab182692) with the EC50 of 400.2 ng/mL. |
| 内毒素水平 | <1.0 EU/μg |
| 表达系统 | E. coli |
| 种属 | 人(Human) |
| 氨基酸 | 37-193 aa |
| 序列 | YFGKLESKLSVIRNLNDQVLFIDQGNRPLFEDMTDSDCRDNAPRTIFIISMYKDSQPRGMAVTISVKCEKISTLSCENKIISFKEMNPPDNIKDTKSDIIFFQRSVPGHDNKMQFESSSYEGYFLACEKERDLFKLILKKEDELGDRSIMFTVQNED |
| 蛋白标签 | No tag |
| 无载体 | Yes |
| 无动物源 | No |
| Accession # | Q14116 |
| 来源 | 重组表达 |
| 预测分子量 | 18.2 kDa |
| SDS-PAGE | 15.7 kDa, under reducing conditions; 15.7 kDa, under non-reducing conditions. |
| 物理形态 | 冻干(Lyophilized) |
|---|---|
| 储存缓冲液 | Lyophilized from PBS, 2mM DTT, 8% Trehalose, 5% Mannitol, pH 7.4. |
| 复溶 | We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute at 0.5 mg/mL in sterile distilled water. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions. |
| 储存温度 | -20°C储存,避免反复冻融 |
| 运输条件 | 超低温冰袋运输 |
| 稳定性与储存 | Store at -20°C for 1 year. Avoid freeze/thaw cycle. |
| 分子类型 | 蛋白质 |
Recombinant Human IL-18 Protein (rp186564) - Binding Activity
Immobilized Recombinant Human IL-18 Bpa Protein (rp169678) at 2.0 μg/mL can bind Recombinant Human IL-18 Protein (rp186564) with the EC
₅₀
of 30.0 ng/mL.
Recombinant Human IL-18 Protein (rp186564) - Binding Activity
Immobilized Recombinant IL-18 protein (rp186564) at 1.0 μg/mL can bind Camoteskimab (anti-IL-18) (Ab182692) with the EC
₅₀
of 400.2 ng/mL.
Recombinant Human IL-18 Protein (rp186564) - SDS-PAGE
3 μg/lane of Recombinant Human IL-18 Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing a band at 15.7 kDa.
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| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
| 分析证书 | rp186564 | |
| 分析证书 | rp186564 | |
| 分析证书 | rp186564 | |
| 分析证书 | rp186564 | |
| 分析证书 | rp186564 | |
| 分析证书 | rp186564 |
¥639.92
¥849.90