| 货号 | IC14331A |
| 别名 | BNSP; Bone sialoprotein 1; Eta-1; MGC110940; Nephropontin; OPN; osteopontin; secreted phosphoprotein 1bone sialoprotein I, early T-lymphocyteactivation 1); secreted phosphoprotein-1 (osteopontin, bone sialoprotein); Spp1; SPP-1; SPP1/CALPHA1 fusion; Urinary stone protein; uropontin | 全称 | Secreted Phosphoprotein 1 [BNSP] |
| 反应种属 | Human |
| 应用 | Intracellular Staining by Flow Cytometry(10 µL/106cells) |
| 目标/特异性 | Detects human Osteopontin in direct ELISAs and Western blots. In direct ELISAs and Western blots, this antibody does not cross‑react with recombinant mouse Osteopontin. |
| 使用方法 | Intracellular Staining by 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 | 6696 (Human); 20750 (Mouse); 25353 (Rat); 281499 (Bovine) |
| 纯化方式 | Protein A or G purified from hybridoma culture supernatant |
| 免疫原 | Mouse myeloma cell line NS0-derived recombinant human Osteopontin Ile17-Asn300 Accession # NP_000573.1 |
| 生物活性 | Human |
| 标记 | Allophycocyanin |
| 背景 | Osteopontin (OPN, previously also referred to as transformation-associated secreted phosphoprotein, bone sialoprotein I, 2ar, 2B7, early T lymphocyte activation 1 protein, minopotin, calcium oxalate crystal growth inhibitor protein), is a secreted, highly acidic, calcium-binding, RGD-containing, phosphorylated glycoprotein originally isolated from bone matrix (1). Subsequently, OPN has been found in kidney, placenta, blood vessels and various tumor tissues. Many cell types (including macrophages, osteoclasts, activated T-cells, fibroblasts, epithelial cells, vascular smooth muscle cells, and natural killer cells) can express OPN in response to activation by cytokines, growth factors or inflammatory mediators. Elevated expression of OPN has also been associated with numerous pathobiological conditions such as atherosclerotic plaques, renal tubulointerstitial fibrosis, granuloma formations in tuberculosis and silicosis, neointimal formation associated with balloon catheterization, metastasizing tumors, and cerebral ischemia. Human OPN cDNA encodes a 314 amino acid (aa) residue precursor protein with a 16 aa residue predicted signal peptide that is cleaved to yield a 298 aa residue mature protein with an integrin binding sequence (RGD), and N- and O-glycosylation sites. By alternative splicing, at least three human OPN isoforms exist. OPN has been shown to bind to different cell types through RGD-mediated interaction with the integrins alpha vbeta1, alpha vbeta3, alpha vbeta5, and non-RGD-mediated interaction with CD44 and the integrins alpha 8beta1 or alpha 9beta1. OPN exists both as a component of extracellular matrix and as a soluble molecule. Functionally, OPN is chemotactic for macrophages, smooth muscle cells, endothelial cells and glial cells. OPN has also been shown to inhibit nitric oxide production and cytotoxicity by activated macrophages. Human, mouse, rat, pig and bovine OPN share from approximately 40% - 80% amino acid sequence identity. Osteopontin is a substrate for proteolytic cleavage by thrombin, enterokinase, MMP-3 and MMP-7. The functions of OPN in a variety of cell types were shown to be modified as a result of proteolytic cleavage (2, 3). |
| 运输条件 | Blue Ice |
| 存放说明 | 4℃ |
| 参考文献 |
|
Detection of Osteopontin/OPN in U937 Human Cell Line by Flow Cytometry. U937 human histiocytic lymphoma cell line was stained with Mouse Anti-Human Osteopontin/OPN APC‑conjugated Monoclonal Antibody (Catalog # IC14331A, filled histogram) or isotype control antibody (Catalog # IC003A, open histogram). To facilitate intracellular staining, cells were fixed with Flow Cytometry Fixation Buffer (Catalog # FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (Catalog # FC005). View our protocol for Staining Intracellular Molecules. |
