| 货号 | AF-261-SP |
| 别名 | Betacellulin; BTC; probetacellulin |
| 反应种属 | Human |
| 应用 | Western Blot,Immunohistochemistry,Neutralization |
| 目标/特异性 | Detects Betacellulin/BTC in direct ELISAs and Western blots. |
| 使用方法 | Western Blot: 2 µg/mL Immunohistochemistry: 3-15 µg/mL Neutralization: Measured by its ability to neutralize Betacellulin/BTC-induced proliferation in the Balb/3T3 mouse embryonic fibroblast cell line. The Neutralization Dose (ND50) is typically 0.04-0.08 µg/mL in the presence of 1 ng/mL Recombinant Human Betacellulin/BTC. |
| 来源 | Polyclonal Goat IgG |
| 产品组分 |
| 供应商 | R&D Systems |
| Entrez Gene IDs | 685 (Human); 12223 (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. High cortical bone mass phenotype in betacellulin transgenic mice is EGFR dependent. | |
| 纯化方式 | Antigen Affinity-purified |
| 免疫原 | E. coli-derived recombinant human Betacellulin Asp32-Tyr111 Accession # P35070 |
| 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 0.2 mg/mL in sterile PBS. |
| 背景 | Betacellulin (BTC) is a member of the EGF family of cytokines that is comprised of at least ten proteins including EGF, TGF-alpha, amphiregulin, HB-EGF, and the various heregulins. All of these cytokines are synthesized as transmembrane precursors and are characterized by the presence of one or more EGF structural units in their extracellular domain. The soluble forms of these cytokines are released by proteolytic cleavage. BTC, a heparin-binding protein, was originally isolated from the conditioned media of mouse pancreatic beta tumor cells as a 32 kDa glycoprotein composed of 80 amino acid residues. The cDNA encoding human BTC was cloned from a human breast adenocarcinoma cell line (MCF-7) cDNA library. Human and mouse cDNAs encode BTC precursor proteins of 178 and 177 amino acid residues, respectively. At the amino acid sequence level, human BTC precursor protein exhibits 79% identity with that of the mouse BTC precursor. In a mouse cell line transfected with human BTC cDNA, three forms of soluble human BTC have been detected: the glycosylated, intact BTC composed of 80 amino acid residues, a truncated molecule lacking 12 amino acid residues from the amino terminus, and a second truncated molecule lacking 30 amino acid residues from the amino terminus. The biological activities of these BTC forms were shown to be identical. BTC can bind to the EGF receptor and is a potent mitogen for Balb/c 3T3 fibroblasts, retinal pigment epithelial cells and vascular smooth muscle cells. |
| 运输条件 | Blue Ice |
| 存放说明 | 4℃ |
| 参考文献 |
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Detection of Human Betacellulin/BTC by Western Blot. Western blot shows lysates of MCF‑7 human breast cancer cell line and OVCAR‑3 human ovarian carcinoma cell line. PVDF membrane was probed with 2 µg/mL of Goat Anti-Human Betacellulin/BTC Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-261-NA) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for Betacellulin/BTC at approximately 32 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1. | |
Cell Proliferation Induced by Betacellulin/BTC and Neutralization by Human Betacellulin/BTC Antibody. Recombinant Human Betacellulin/BTC (Catalog # 261‑CE) stimulates proliferation in the Balb/3T3 mouse embryonic fibroblast cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Human Betacellulin/BTC (1 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Human Betacellulin/ BTC Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-261-NA). The ND50 is typically 0.04‑0.08 µg/mL. | |
Betacellulin/BTC in Human Lung Cancer Tissue. Betacellulin/BTC was detected in immersion fixed paraffin-embedded sections of human lung cancer tissue using Goat Anti-Human Betacellulin/BTC Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-261-NA) at 3 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). Specific staining was localized to cytoplasm. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections. | |
Betacellulin/BTC in Human Pancreas. Betacellulin/BTC was detected in immersion fixed paraffin-embedded sections of human pancreas using Goat Anti-Human Betacellulin/BTC Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-261-NA) at 15 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). Specific staining was localized to islets. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections. |
