Human CD27/TNFRSF7 Biotinylated Antibody

  
  • Species Reactivity
    Human
  • Specificity
    Detects human CD27 in Western blots. In Western blots, less than 2% cross-reactivity with recombinant human (rh) sTNF RI and rhsTNF RII (under reducing conditions) is observed.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    S. frugiperda insect ovarian cell line Sf 21-derived recombinant human CD27
    Thr21-Ile192
    Accession # P26842
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
  • Label
    Biotin
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    0.1 µg/mL
    Recombinant Human CD27/TNFRSF7 Fc Chimera (Catalog # 382-CD)
  • Flow Cytometry
    2.5 µg/106 cells
    Human whole blood lymphocytes
  • Immunohistochemistry
    3-15 µg/mL
    See below
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.
Data Examples
Immunohistochemistry
CD27/TNFRSF7 in Human Tonsil. CD27/TNFRSF7 was detected in immersion fixed paraffin-embedded sections of human tonsil using Goat Anti-Human CD27/TNFRSF7 Biotinylated Antigen Affinity-purified Polyclonal Antibody (Catalog # BAF382) 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 lymphocytes in germinal center. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile PBS.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
  • Stability & Storage
    Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
    • 12 months from date of receipt, -20 to -70 °C as supplied.
    • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
    • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: CD27/TNFRSF7

Human CD27 is a lymphocyte-specific member of the TNF receptor superfamily. CD27 is expressed on a subset of human thymocytes and on the majority of mature T cells. CD27 expression is up-regulated after TCR stimulation. Within the CD4+ compartment, it is preferentially expressed on CD45RA+ cells. In contrast, it is preferentially expressed on CD45RO+ cells in the CD8+ compartment. CD27 also appeaars to be a potential marker for memory B cells. It exists as both a disulfide-linked dimer on the cell surface and as a soluble protein found in serum. Human CD27 is a 260 amino acid (aa) protein with a 20 aa signal, a 173 aa extracellular domain, a 20 aa transmembrane domain, and a 47 aa cytoplasmic domain. The ligand for CD27 is CD70. CD70 is expressed on thymic stromal cells and a small subset of activated T cells. Additionally a subset of activated B cells express CD70. The CD27/CD70 interaction appears to be a weak costimulatory pathway involved in T cell and B cell immune response. CD27/CD70 interactions may be more involved in controlling the expansion phase of an immune response. This would be in contrast to B7/CD28 interactions, which are important for the activation phase of immune responses.

  • References:
    1. Camerini, D. et al. (1991) J. Immunol. 147:3165.
    2. Loenen, W.A. et al. (1992) J. Immunol. 149:3937.
    3. Lens, S.M.A. et al. (1998) Sem. Immunol. 10:491.
  • Entrez Gene IDs:
    939 (Human); 21940 (Mouse); 500318 (Rat); 102139476 (Cynomolgus Monkey)
  • Alternate Names:
    CD27 antigen; CD27 molecule; CD27; MGC20393; S152CD27L receptor; T cell activation antigen CD27; T cell activation antigen S152; T14; TNFRSF7; TNFRSF7T-cell activation antigen CD27; Tp55; Tumor necrosis factor receptor superfamily member 7; tumor necrosis factor receptor superfamily, member 7
Related Research Areas
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