| 货号 | AB126 |
| 别名 | apoptosis (APO-1) antigen ligand 1; Apoptosis antigen ligand; APT1LG1CD95L; APTL; CD178 antigen; CD178; CD95L; CD95-L; Fas antigen ligand; Fas ligand (TNF superfamily, member 6); Fas ligand; FASLCD95 ligand; FASLG; TNFSF6; TNFSF6FasL; tumor necrosis factor (ligand) superfamily, member 6; tumor necrosis factor ligand superfamily member 6 |
| 反应种属 | Human |
| 应用 | Western Blot(1 µg/mL) |
| 目标/特异性 | Detects human Fas Ligand/TNFSF6 in direct ELISAs and Western blots. In direct ELISAs, approximately 5% cross-reactivity with recombinant mouse Fas Ligand is observed and less than 1% cross-reactivity with recombinant human (rh) GITR Ligand, rhTNF-alpha, and rhTRAIL is observed. |
| 使用方法 | Western Blot: 1 µg/mL Neutralization: Measured by its ability to neutralize Fas Ligand/TNFSF6-induced apoptosis in the Jurkat human acute T cell leukemia cell line. Cifone, M. G. et al. (1994) J. Exp. Med. 180:1547. The Neutralization Dose (ND50) is typically 0.05-0.2 µg/mL in the presence of 2 ng/mL Recombinant Human Fas Ligand/TNFSF6. |
| 来源 | Polyclonal Goat IgG |
| 产品组分 |
| 供应商 | R&D Systems |
| Entrez Gene IDs | 356 (Human); 14103 (Mouse); 25385 (Rat) |
| 纯化方式 | Protein A or G purified |
| 免疫原 | Chinese hamster ovary cell line CHO-derived recombinant human Fas Ligand/TNFSF6 Pro134-Leu281 Accession # P48023 |
| 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 1 mg/mL in sterile PBS. |
| 背景 | Fas Ligand (FasL), also known as CD178, CD95L, or TNFSF6, is a 40 kDa type II transmembrane member of the TNF superfamily of proteins. Its ability to induce apoptosis in target cells plays an important role in the development, homeostasis, and function of the immune system (1). Mature human Fas Ligand consists of a 179 amino acid (aa) extracellular domain (ECD), a 22 aa transmembrane segment, and a 80 aa cytoplasmic domain (2). Within the ECD, human Fas Ligand shares 81% and 78% aa sequence identity with mouse and rat Fas Ligand, respectively. Both mouse and human Fas Ligand are active on mouse and human cells (2, 3). Fas Ligand is expressed on the cell surface as a nondisulfide-linked homotrimer on activated CD4+ Th1 cells, CD8+ cytotoxic T cells, and NK cells (1). Fas Ligand binding to Fas/CD95 on an adjacent cell triggers apoptosis in the Fas‑expressing cell (2, 4). Fas Ligand also binds DcR3 which is a soluble decoy receptor that interferes with Fas Ligand-induced apoptosis (5). Fas Ligand can be released from the cell surface by metalloproteinases as a 26 kDa soluble molecule which remains trimeric (6, 7). Shed Fas Ligand retains the ability to bind Fas, although its ability to trigger apoptosis is dramatically reduced (6, 7). In the absence of TGF‑ beta, however, Fas Ligand/Fas interactions instead promote neutrophil-mediated inflammatory responses (3, 8). Fas Ligand itself transmits reverse signals that costimulate the proliferation of freshly antigen-stimulated T cells (9). Fas Ligand-induced apoptosis plays a central role in the development of immune tolerance and the maintance of immune privileged sites (10). This function is exploited by tumor cells which evade immune surveillance by upregulating Fas Ligand to kill tumor infiltrating lymphocytes (8, 11). In gld mice, a Fas Ligand point mutation is the cause of severe lymphoproliferation and systemic autoimmunity (12, 13). |
| 运输条件 | Blue Ice |
| 存放说明 | -20℃ |
| 参考文献 |
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Apoptosis Induced by Fas Ligand/TNFSF6 and Neutralization by Human Fas Ligand/TNFSF6 Antibody. Recombinant Human Fas Ligand/ TNFSF6 (Catalog # 126-FL) induces apoptosis in the Jurkat human acute T cell leukemia cell line in a dose-dependent manner (orange line). Apoptosis elicited by Recombinant Human Fas Ligand/TNFSF6 (2 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Human Fas Ligand/ TNFSF6 Polyclonal Antibody (Catalog # AB126). The ND50 is typically 0.05‑0.2 µg/mL. |
