货号 | AF5870-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 | Human |
应用 | Western Blot(1 µg/mL) Immunocytochemistry(5-15 µg/mL) Intracellular Staining by Flow Cytometry(2.5 µg/106cells) |
目标/特异性 | Detects human PU.1 in direct ELISAs and Western blots. In direct ELISAs, approximately 5% cross-reactivity with recombinant human SPI-B is observed. |
使用方法 | Western Blot: 1 µg/mL Immunocytochemistry: 5-15 µg/mL Intracellular Staining by Flow Cytometry: 2.5 µg/106cells |
来源 | Reconstitute at 0.2 mg/mL in sterile PBS. |
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 human PU.1 Met1-Lys169 Accession # NP_001074016 |
生物活性 | Human |
标记 | Unconjugated |
溶解方法 | Reconstitute at 0.2 mg/mL in sterile PBS. |
背景 | PU.1 (Purine-rich nucleic acid binding protein 1; also 31 kDa transforming protein and SPI-1) is a member of the PU subfamily, ETS family of transcription factors. Although its predicted MW is 31 kDa, it appears to run anomalously high in SDS-PAGE at 40‑45 kDa. PU.1 is a monomeric hematopoietic protein that regulates the differentiation of early myeloid and lymphoid progenitors. High PU.1 levels favor granulocyte and macrophage production, while low levels generate magakaryocytes, erythrocytes, T and B cells. Human PU.1 is 270 amino acids (aa) in length. It contains an N-terminal acidic/polyGln transactivation region (aa 34‑99), a non‑destabilizing PEST sequence (aa 117‑165) and a C-terminal Ets DNA-binding domain (aa 170‑253). PU.1 is phosphorylated on Ser146, allowing it to bind to Pip. Over aa 1‑169, human PU.1 shares 88% aa identity with mouse PU.1. |
运输条件 | Blue Ice |
存放说明 | 4℃ |
参考文献 |
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Detection of Human PU.1 by Western Blot. Western blot shows lysates of THP‑1 human acute monocytic leukemia cell line. PVDF membrane was probed with 1 µg/mL of Human PU.1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF5870) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for PU.1 at approximately 45 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 8. | |
PU.1 in THP‑1 Human Cell Line. PU.1 was detected in immersion fixed THP‑1 human acute monocytic leukemia cell line using Human PU.1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF5870) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Sheep IgG Secondary Antibody (red; Catalog # NL010) and counterstained with DAPI (blue). Specific staining was localized to nuclei and cytoplasm. View our protocol for Fluorescent ICC Staining of Non-adherent Cells. |