货号 | AF315-SP |
别名 | IL-15MGC9721; interleukin 15; interleukin-15 | 全称 | Interleukin 15 |
反应种属 | Human |
应用 | Western Blot(0.1 µg/mL) Immunohistochemistry(5-15 µg/mL) |
目标/特异性 | Detects human IL-15 in direct ELISAs and Western blots. In direct ELISAs, less than 1% cross-reactivity with recombinant mouse IL‑15 is observed. |
使用方法 | Western Blot: 0.1 µg/mL Immunohistochemistry: 5-15 µg/mL Neutralization: Measured by its ability to neutralize IL‑15-induced proliferation in the MO7e human megakaryocytic leukemic cell line [Avanzi, G. et al. (1988) Br. J. Haematol. 69:359]. The Neutralization Dose (ND50) is typically 0.5-1.5 µg/mL in the presence of 10 ng/mL of Recombinant Human IL‑15. |
来源 | Polyclonal Goat IgG |
产品组分 |
供应商 | R&D Systems |
Entrez Gene IDs | 3600 (Human); 16168 (Mouse); 25670 (Rat); 493682 (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. Intramuscular delivery of heterodimeric IL-15 DNA in macaques produces systemic levels of bioactive cytokine inducing proliferation of NK and T cells. | |
纯化方式 | Antigen Affinity-purified |
免疫原 | E. coli-derived recombinant human IL-15 Asn49-Ser162 Accession # P40933 |
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 15 (IL-15) is a widely expressed 14 kDa cytokine that is structurally and functionally related to IL-2 (1-3). Mature human IL-15 shares 70% amino acid sequence identity with mouse and rat IL-15. Alternate splicing generates isoforms of IL-15 with either a long or short signal peptide (LSP or SSP), and the SSP isoform is retained intracellularly (4). IL-15 binds with high affinity to IL-15 R alpha (5). It binds with lower affinity to a complex of IL-2 R beta and the common gamma chain ( gamma c) which are also subunits of the IL-2 receptor complex (1, 6). IL-15 associates with IL-15 R alpha in the endoplasmic reticulum, and this complex is expressed on the cell surface (7, 8). The dominant mechanism of IL-15 action is known as transpresentation in which IL-15 and IL-15 R alpha are coordinately expressed on the surface of one cell and interact with complexes of IL-2 R beta / gamma c on adjacent cells (9). This enables cells to respond to IL-15 even if they do not express IL-15 R alpha (8, 10). Soluble IL-15-binding forms of IL-15 R alpha can be generated by proteolytic shedding or alternate splicing (11-13). These molecules retain the ability to bind tightly to IL-15 and can either inhibit or augment IL-15 function (5, 12, 13). Consistent with its shared use of IL-2 receptor subunits, IL-15 induces IL-2-like effects in lymphocyte development and homeostasis (3). It is particularly important for the maintenance and activation of NK cells and CD8+ memory T cells (3). IL-15 also exerts pleiotropic effects on other hematopoietic cells and non-immune cells (2). Ligation of membrane-associated IL-15/IL-15 R alpha complexes induces reverse signaling that promotes cellular adhesion, tyrosine phosphorylation of intracellular proteins, and cytokine secretion by the IL-15/IL-15 R alpha expressing cells (14, 15). |
运输条件 | Blue Ice |
存放说明 | 4℃ |
参考文献 |
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Cell Proliferation Induced by IL‑15 and Neutralization by Human IL‑15 Antibody. Recombinant Human IL‑15 (Catalog # 247-IL) stimulates proliferation in the MO7e human megakaryocytic leukemic cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Human IL‑15 (10 ) is neutralized (green line) by increasing concentrations of Goat Anti-Human IL‑15 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF315). The ND50 is typically 0.5-1.5 µg/mL. | |
IL‑15 in Human Tonsil. IL‑15 was detected in immersion fixed paraffin-embedded sections of human tonsil using Goat Anti-Human IL‑15 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF315) at 10 µg/mL overnight at 4 °C. Before incubation with the primary antibody tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (Catalog # CTS013). Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections. |