| 货号 | AF7124-SP |
| 别名 | hematopoietic transcription factor PU.1; OF; PU.1; SFPI1; SFPI131 kDa transforming protein; SPI-1 proto-oncogene; SPI1; Spi-1; SPI-A; spleen focus forming virus (SFFV) proviral integration oncogene spi1,31 kDa-transforming protein; transcription factor PU.1 | 全称 | Hematopoietic transcription factor PU.1 |
| 反应种属 | Mouse |
| 应用 | Western Blot(1 µg/mL) |
| 目标/特异性 | Detects mouse PU.1/Spi-1 in direct ELISAs and Western blots. In direct ELISAs, approximately 30% cross-reactivity with recombinant human Spi-1 is observed, and less than 1% cross-reactivity with recombinant mouse Spi-B 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 | 6688 (Human); 20375 (Mouse); 366126 (Rat) |
| 纯化方式 | Antigen Affinity-purified |
| 免疫原 | E. coli-derived recombinant mouse PU.1/Spi-1 Met1-Lys169 Accession # P17433 |
| 生物活性 | Mouse |
| 标记 | Unconjugated |
| 溶解方法 | Sterile PBS to a final concentration of 0.2 mg/mL. |
| 背景 | Spi1 (SFFV proviral integration 1 protein; also PU.1 and Sfpi1) is a 37-41 kDa member of the ets family of transcription factors. It is both an RNA and DNA binding protein that is found in hematopoietic cells such as B cells, neutrophils, macrophages and dendritic cells (DC). Spi1 can act as both a transcriptional activator and repressor. In DC, Spi1 promotes the expression of CD80, CD86 and CD11b, while in proerythroblasts, it blocks GATA-1 induced transcriptional activation. Spi1 binds to DNA as a monomer, and interacts with multiple factors such as Runx-1, IRF8, GATA-1 and c-Jun. Mouse Spi1 is 272 amino acids (aa) in length. It contains a transactivation region (aa 7-117), a PEST domain (aa 118-164), and a DNA-binding domain (aa 165-266). Phosphorylation on Ser41, 142 and 148 increases activity. There is one alternative start site at Met7. Over aa 1-169, mouse Spi1 shares 88% and 81% aa identity with rat and human Spi1, respectively. |
| 运输条件 | Blue Ice |
| 存放说明 | 4℃ |
| 参考文献 |
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Detection of Mouse PU.1/Spi‑1 by Western Blot. Western blot shows lysates of J774A.1 mouse reticulum cell sarcoma macrophage cell line. PVDF membrane was probed with 1 µg/mL of Sheep Anti-Mouse PU.1/Spi‑1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7124) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for PU.1/Spi‑1 at approximately 40 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1. |
