| 货号 | AF7489-SP |
| 别名 | B4; B-lymphocyte antigen CD19; B-lymphocyte surface antigen B4; CD19 antigen; CD19 molecule; CD19; CVID3; Differentiation antigen CD19; Leu-12; MGC12802; T-cell surface antigen Leu-12 |
| 反应种属 | Rat |
| 应用 | Western Blot(1 µg/mL) |
| 目标/特异性 | Detects rat CD19 in direct ELISAs and Western blots. In direct ELISAs, approximately 25% cross-reactivity with recombinant human CD19 is observed. |
| 使用方法 | Western Blot: 1 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 | 930 (Human); 12478 (Mouse); 365367 (Rat); 607898 (Canine); 100147468 (Equine) |
| 纯化方式 | Antigen Affinity-purified |
| 免疫原 | Chinese hamster ovary cell line recombinant rat CD19 Arg19-Gly287 Accession # NP_001013255 |
| 生物活性 | Rat |
| 标记 | Unconjugated |
| 溶解方法 | Sterile PBS to a final concentration of 0.2 mg/mL. |
| 背景 | CD19 (also surface antigen B4 and Leu12) is a 95-110 kDa member of the Immunoglobulin superfamily of molecules. It is expressed by B cells, and interacts with CD21 for the purpose of reducing the threshold of the antigen signal needed to with activate the BCR. CD19 ligation also promotes B cell:follicular dendritic cell (FDC) interaction and B cell proliferation in the FDC zone of the spleen. Mature rat CD19 is a 529 amino acid (aa) type I transmembrane glycoprotein (aa 19-547). Based on mouse, it contains a 269 aa extracellular region (aa 19-287) plus a 236 aa cytoplasmic domain. The extracellular region possesses two C2-type Ig-like domains (aa 20-113 and 171-271) and one utilized phosphorylation site at Ser225. The cytoplasmic domain contains five potential Tyr phosphorylation sites. There is one splice form that shows a two aa substitution after Gly489. Over aa 19-287, rat CD19 shares 88% and 57% aa sequence identity with mouse and human CD19, respectively. |
| 运输条件 | Blue Ice |
| 存放说明 | 4℃ |
| 参考文献 |
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Detection of Rat CD19 by Western Blot. Western blot shows lysates of rat splenocytes. PVDF membrane was probed with 1 µg/mL of Sheep Anti-Rat CD19 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7489) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). Specific bands were detected for CD19 at approximately 85-100 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1. |
