| 货号 | AF1379-SP |
| 别名 | Gastrointestinal secretory protein; GISP; GISPREG-4; Reg IV; regenerating gene type IV; regenerating islet-derived family, member 4; regenerating islet-derived protein 4; Regenerating islet-derived protein IV; REG-IV; RELP; RELPREG-like protein | 全称 | Regenerating Islet-derived 4 |
| 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 Reg4 in direct ELISAs and Western blots. In direct ELISAs, approximately 15% cross-reactivity with recombinant mouse (rm) Reg4, rmReg3A, and recombinant rat (rr) Reg3A is observed, less than 5% cross-reactivity with rrReg2 is observed, and less than 1% cross‑reactivity with recombinant human (rh) Reg1B, rhRegIA, rmReg1, rmReg2, and rmReg3D is observed. |
| 使用方法 | Western Blot: 0.1 µg/mL Immunohistochemistry: 5-15 µg/mL |
| 来源 | Reconstitute at 0.2 mg/mL in sterile PBS. |
| 产品组分 |
| 供应商 | R&D Systems |
| Entrez Gene IDs | 83998 (Human); 67709 (Mouse); 445583 (Rat) |
| 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. REG4 acts as a mitogenic, motility and pro-invasive factor for colon cancer cells. | |
| 纯化方式 | Antigen Affinity-purified |
| 免疫原 | E. coli-derived recombinant human Reg4 Asp23-Pro158 Accession # Q9BYZ8 |
| 生物活性 | Human |
| 标记 | Unconjugated |
| 溶解方法 | Reconstitute at 0.2 mg/mL in sterile PBS. |
| 背景 | Reg4 (regenerating islet-derived protein 4; also named Reg-like protein, RELP, and gastrointestinal secretory protein) is a 17 kDa, secreted glycoprotein belonging to the calcium (C-type) dependent lectin superfamily and the regenerating gene family (1-3). There are three potential isoforms for human Reg4. Isoform 1 is synthesized as a 158 amino acid (aa) precursor with a 22 aa signal sequence and a 136 aa mature chain. Amino acids 30-156 constitute a C-type lectin-like domain, and amino acid 50 is a site for potential N-linked glycosylation. In addition, amino acids 127 and 142-143 form a ligand-binding surface. In isoform 2, there is a 79 aa substitution for the C-terminal 101 amino acids, while in isoform 3, there is an 11 aa substitution for the C-terminal 57 amino acids. Human Reg4 shares 68% and 67% aa sequence identity with rat and mouse Reg4, respectively. Like other members of the regenerating gene family, Reg4 is expressed in the gastrointestinal (GI) tract and ectopically at other sites in the setting of tissue injury (1, 2). In particular, Reg4 is expressed in normal colon mucosa, and up-regulated in colon adenocarcinoma, pancreatic cancer, gastric adenocarcinoma, inflammatory bowel disease (Crohn’s disease and ulcerative colitis), and, outside the GI tract, in prostate adenocarcinoma (2-8). The physiological function of Reg4 is presently unknown, but it may be involved in inflammatory and metaplastic responses of the GI epithelium (3). |
| 运输条件 | Blue Ice |
| 存放说明 | 4℃ |
| 参考文献 |
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Reg4 in Human Colon Cancer Tissue. Reg4 was detected in immersion fixed paraffin-embedded sections of human colon cancer tissue using Goat Anti-Human Reg4 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1379) 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). Specific labeling was localized to the cytoplasm of epithelial cells. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections. |
