Human CD39/ENTPD1 Antibody

  • Specificity
    Detects human CD39/ENTPD1 in direct ELISAs. In direct ELISAs, no cross-reactivity with recombinant mouse CD39, recombinant human CD39L2, 3, or 4 is observed.
  • Source
    Monoclonal Mouse IgG1 Clone # 498403
  • Purification
    Protein A or G purified from hybridoma culture supernatant
  • Immunogen
    Chinese hamster ovary cell line CHO-derived recombinant human CD39/ENTPD1
    Accession # P49961
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Label
  • Flow Cytometry
    2.5 µg/106 cells
    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
Detection of CD39/ENTPD1 in Human Monocytes by Flow Cytometry. Human whole blood monocytes were stained with Mouse Anti-Human CD39/ENTPD1 Mono­clonal Antibody (Catalog # MAB4397, filled histogram) or isotype control antibody (Catalog # MAB002, open histogram), followed by Phy­coerythrin-conjugated Anti-Mouse IgG F(ab')2 Secondary Antibody (Catalog # F0102B).
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.5 mg/mL in sterile PBS.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
  • 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: CD39/ENTPD1

Ectonucleoside triphosphate diphosphohydrolase-1 (NTPDase-1) is an integral membrane protein with an extracellular active site. rhNTPDase-1 was expressed as a protein lacking its N- and C-terminal transmembrane domains, resulting in the secretion of the soluble rhNTPDase-1 ectodomain. NTPDase-1 was originally described as CD39, a B lymphocyte cell surface marker (2), but it is also present on the surface of natural killer cells, T cells, and some endothelial cells (3). NTPDase-1 hydrolyzes the beta - and gamma  phosphate residues of nucleotides, preferring ATP as the substrate. Through its hydrolysis of extracellular nucleotides, NTPDase-1 plays a role in the regulation of purinergic signaling (4). NTPDase-1 is involved in the processes of thrombo regulation and vascular inflammation (5). The administration of soluble NTPDase-1 may have therapeutic applications for the treatment of some vascular and transplantation-associated diseases (6).

  • References:
    1. Maliszewski, C.R. et al. (1994) J. Immunol. 153:3574.
    2. Rowe, M. et al. (1982) Int. J. Cancer 29:373.
    3. Kansas, G.S. et al. (1991) J. Immunol. 146:2235.
    4. Kishore, B.K. et al. (2005) Am. J. Physiol. Renal Physiol. 288:F1032.
    5. Marcus, A.J. et al. (2005) Semin. Thromb. Hemost. 31:234.
    6. Robson, S.C. et al. (2005) Semin. Thromb. Hemost. 31:217.
  • Long Name:
    Ecto-Nucleoside Triphosphate Diphosphohydrolase 1
  • Alternate Names:
    ADPase; ATP-diphosphatase; CD39; ENTPD1; NTPD1; ATPDase; CD39 antigen; CD39EC; DKFZp686D194; DKFZp686I093; EC 3.6.1; ecto-apyrase; Ecto-apyrase; Ecto-ATP diphosphohydrolase 1; Ecto-ATPase 1; Ecto-ATPDase 1; ectonucleoside triphosphate diphosphohydrolase 1; FLJ40921; FLJ40959; Lymphoid cell activation antigen; NTPDase 1; NTPDase-1
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