Human PU.1/Spi-1 PE-conjugated Antibody Summary
Accession # NP_001074016
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Detection of PU.1/Spi‑1 in Human PBMC lymphocytes by Flow Cytometry. Human peripheral blood mononuclear cell (PBMC) lymphocytes were stained with Sheep Anti-Human PU.1/Spi-1 PE-conjugated Antigen Affinity-purified Polyclonal Antibody (Catalog # IC5870P) and Mouse Anti-Human CD3e PerCP-conjugated Monoclonal Antibody (Catalog # FAB100C). Quadrant markers were set based on control antibody staining (Catalog # IC016P). To facilitate intracellular staining, cells were fixed with Flow Cytometry Fixation Buffer (Catalog # FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (Catalog # FC005). View our protocol for Staining Intracellular Molecules.
Detection of PU.1/Spi‑1 in Th2-differentiated Human PBMCs by Flow Cytometry. Human peripheral blood mononuclear cells (PBMCs) treated with 5 ng/mL Recombinant Human IL-4 (Catalog # 204-IL) and 10 µg/mL Goat Anti-Human IFN-? Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-285-NA) for 5 days, then treated overnight with PMA and Calcium Ionomycin to induce Th2 differentiation were stained with Sheep Anti-Human PU.1/Spi-1 PE-conjugated Antigen Affinity-purified Polyclonal Antibody (Catalog # IC5870P) and Mouse Anti-Human CD3e APC-conjugated Monoclonal Antibody (Catalog # FAB100A). Quadrant markers were set based on control antibody staining (Catalog # IC016P). To facilitate intracellular staining, cells were fixed with Flow Cytometry Fixation Buffer (Catalog # FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (Catalog # FC005). View our protocol for Staining Intracellular Molecules.
Preparation and Storage
- 12 months from date of receipt, 2 to 8 °C as supplied.
PU.1 (Purine-rich Nucleic Acid Binding Protein 1), also known as 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 megakaryocytes, 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.
Citation for Human PU.1/Spi-1 PE-conjugated Antibody
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.
1 Citation: Showing 1 - 1
The Immunogenicity of Branded and Biosimilar Infliximab in Rheumatoid Arthritis According to Th9-Related Responses
Authors: R Talotta, A Berzi, A Doria, A Batticciot, MC Ditto, F Atzeni, P Sarzi-Putt, D Trabattoni
Int J Mol Sci, 2017;18(10):.
Sample Types: Whole Cells
Applications: Flow Cytometry
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