| 货号 | FAB5231A-100 |
| 别名 | DER4; Fit-1; IL-1 R4; IL-1RL1; IL-33R; Ly84; ST2L; ST2V; suppression of tumorigenicity 2; T1 | 全称 | Interleukin 33 Receptor |
| 反应种属 | Human |
| 应用 | Flow Cytometry(10 µL/106cells) |
| 目标/特异性 | Detects human ST2/IL‑1 R4 in direct ELISAs and Western blots. In direct ELISAs, less than 1% cross-reactivity with recombinant human (rh) IL-1 RI, rhIL-1 RII, rhIL-18 RI, and rhST-7 is observed. |
| 使用方法 | Flow Cytometry: 10 µL/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 | 9173 (Human); 17082 (Mouse) |
| 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. IL?33 restricts invasion and adhesion of trophoblast cell line JEG3 by downregulation of integrin ?4?1 and CD62L | |
| 纯化方式 | Antigen Affinity-purified |
| 免疫原 | S. frugiperda insect ovarian cell line Sf 21-derived recombinant human ST2/IL‑1 R4 Lys19-Phe328 Accession # BAA02233 |
| 生物活性 | Human |
| 标记 | Allophycocyanin |
| 背景 | ST2, also known as IL-1 R4 and T1, is an Interleukin-1 receptor family glycoprotein that contributes to Th2 immune responses (1, 2). Human ST2 consists of a 310 amino acid (aa) extracellular domain (ECD) with three Ig-like domains, a 21 aa transmembrane segment, and a 207 aa cytoplasmic domain with an intracellular TIR domain (3, 4). Alternate splicing of the 120 kDa human ST2 generates a soluble 60 kDa isoform that lacks the transmembrane and cytoplasmic regions as well as an isoform that additionally lacks the third Ig‑like domain (4). Within the ECD, human ST2 shares 68% and 64% aa sequence identity with mouse and rat ST2, respectively. ST2 is expressed on the surface of mast cells, activated Th2 cells, macrophages, and cardiac myocytes (5‑8). It binds IL-33, a cytokine that is upregulated by inflammation or mechanical strain in smooth muscle cells, airway epithelia, keratinocytes, and cardiac fibroblasts (5, 9). IL-33 binding induces the association of ST2 with IL-1R AcP, a shared signaling subunit that also associates with IL-1 RI and IL-1 Rrp2 (1, 10, 11). In macrophages, ST2 interferes with signaling from IL-1 RI and TLR4 by sequestering the adaptor proteins MyD88 and Mal (7). In addition to its role in promoting mast cell and Th2 dependent inflammation, ST2 activation enhances antigen induced hypernociception and protects from atherosclerosis and cardiac hypertrophy (5, 12‑14). The soluble ST2 isoform is released by activated Th2 cells and strained cardiac myocytes and is elevated in the serum in allergic asthma (6, 8, 15). Soluble ST2 functions as a decoy receptor that blocks IL‑33’s ability to signal through transmembrane ST2 (10, 13‑15). |
| 运输条件 | Blue Ice |
| 存放说明 | 4℃ |
| 参考文献 |
|
Detection of ST2/IL‑1 R4 in KG‑1a Human Cell Line by Flow Cytometry. |
