Anti-Human CD39 FITC

Description: The eBioA1 monoclonal antibody reacts with human CD39 also known as ectonucleoside triphosphate diphosphohydrolase 1 (ENTPD1) or NTPDase. CD39 is an integral membrane protein with two transmembrane domains and exists as a homotetramer. It is the most prominent ectoenzyme of the immune system. The function of CD39 is to effectively remove toxic extracellular ATP by converting it to ADP or AMP. CD39 is thought to work together with CD73 to hydrolyze ATP and has been well characterized on Langerhans cells. Expression of CD39 was originally identified on activated lymphocytes. Expression is also found on a subset of T cells, B cells and dendritic cells as well as weak staining on monocytes and granulocytes.

Recently, CD39 and CD73 have been found on regulatory T cells (Treg). Expression of CD39 on Treg may facilitate their entry into inflamed areas where high levels of ATP are present. Expression of CD39 on Foxp3+CD4+ cells ranges from 25-45%.

References: Lyck L, Dalmau I, et al. 2008. Immunohistochemical markers for quantitative studies of neurons and glia in human neocortex. J Histochem Cytochem. 56(3):201-21. (A1, IHC frozen, PubMed)

Borsellino G, Kleinewietfeld M, Di Mitri D, Sternjak A, Diamantini A, Giometto R, Hopner S, Centonze D, Bernardi G, Dell'acqua ML, Rossini PM, Battistini L, Rotzschke O, Falk K. 2007. Expression of ectonucleotidase CD39 by Foxp3+ Treg cells: hydrolysis of extracellular ATP and immune suppression. Blood. 110(4):1225-32.

Stockl J., O. Majdic, G. Fischer, D. Maurer, W. Knapp. 2001. Monomorphic Molecules Function as Additional Recognition Structures on Haptenated Target Cells for HLA-A1-Restricted, Hapten-Specific CTL. J. Immunol. 167L:2724-2733

Aversa GG., J.A. Waugh, G.A. Bishop, B.M. Hall. 1989. Use of Monoclonal Antibodies to Study in vivo and in vitro-activated Lymphocytes. Transplant Proc. 21(1):349-50.

Aversa GG., M.G. Suranyi, J.A. Waugh, A.G. Bishop, B.M. Hall. 1988. Detection of a Late Lymphocyte Activation Marker by A1, a New Monoclonal Antibody. Transplant Proc. 20(1):49-52.