| 货号 | AF7084-SP |
| 别名 | 40; 40, sulfated glycoprotein 2; Aging-associated gene 4 protein; aging-associated protein 4; APOJ; apo-J; Apolipoprotein J; CLI; CLIclusterin (complement lysis inhibitor, SP-40; CLU; clusterin; Complement cytolysis inhibitor; complement lysis inhibitor; Complement-associated protein SP-40; Ku70-binding protein 1; KUB1SGP2; MGC24903; NA1/NA2; SGP-2; SP-40; sulfated glycoprotein 2; Testosterone-repressed prostate message 2; testosterone-repressed prostate message 2, apolipoprotein J); TRPM-2; TRPM-2TRPM2 |
| 反应种属 | Human |
| 应用 | Immunohistochemistry(5-15 µg/mL) |
| 目标/特异性 | Detects human Clusterin (aa 22-227) in direct ELISAs. |
| 使用方法 | Immunohistochemistry: 5-15 µg/mL |
| 来源 | Sterile PBS to a final concentration of 0.2 mg/mL. |
| 产品组分 |
| 供应商 | R&D Systems |
| Entrez Gene IDs | 1191 (Human); 12759 (Mouse) |
| 纯化方式 | Antigen Affinity-purified |
| 免疫原 | E. coli-derived recombinant human Clusterin Asp23-Arg227 Accession # P10909 |
| 生物活性 | Human |
| 标记 | Unconjugated |
| 溶解方法 | Sterile PBS to a final concentration of 0.2 mg/mL. |
| 背景 | Clusterin, also known as Apolipoprotein J, Sulfated Glycoprotein 2 (SGP-2), TRPM-2, and SP-40, is a secreted multifunctional protein that was named for its ability to induce cellular clustering. It binds a wide range of molecules and may function as a chaperone of misfolded extracellular proteins. It also participates in the control of cell proliferation, apoptosis, and carcinogenesis (1, 2). Clusterin is predominantly expressed in adult testis, ovary, adrenal gland, liver, heart, and brain and in many epithelial tissues during embryonic development (3). Human Clusterin is synthesized as a precursor that contains two coiled coil domains, three nuclear localization signals (NLS), and one heparin binding domain (4‑6). Intracellular cleavages of the precursor remove the signal peptide and generate comparably sized alpha and beta chains which are secreted as an 80 kDa N-glycosylated disulfide-linked heterodimer (7, 8). Mature human Clusterin shares 77% amino acid sequence identity with mouse and rat Clusterin. High μg/mL concentrations of Clusterin circulate predominantly as a component of high density lipoprotein particles, and these are internalized and degraded through interactions with LRP-2/Megalin (9, 10). In human, an alternately spliced 50 kDa isoform of Clusterin (nCLU) lacks the signal peptide and remains intracellular (5, 11). This molecule is neither glycosylated nor cleaved into alpha and beta chains (11). In the cytoplasm, nCLU destabilizes the actin cytoskeleton and inhibits NF kappa B activation (12, 13). Cellular exposure to ionizing radiation promotes the translocation of nCLU to the nucleus where it interacts with Ku70 and promotes apoptosis (5, 11). This function contrasts with the cytoprotective effect of secreted Clusterin (14). During colon cancer tumor progression there is a downregulation of the intracellular form and an upregulation of the glycosylated secreted form (11). |
| 运输条件 | Blue Ice |
| 存放说明 | 4℃ |
| 参考文献 |
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Clusterin in Human Brain. Clusterin was detected in immersion fixed paraffin-embedded sections of human Alzheimers brain using Sheep Anti-Human Clusterin aa 22-227 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7084) at 1.7 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Sheep HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS019) and counterstained with hematoxylin (blue). Specific staining was localized to neuronal cell bodies and processes. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections. |
