The Y23-1185 monoclonal antibody specifically recognizes mouse CD39, also known as ectonucleoside triphosphate diphosphohydrolase 1 (NTPDase 1), which is an enzyme on the surface of vascular endothelial cells, antigen presenting cells and activated immune cells. CD39 is encoded by ENTPD1 which belongs to the ectoenzyme family. The catalytic portion of the CD39 is extracellular, where it acts on extracellular nucleoside triphosphates and diphosphates, including ATP and ADP that are hydrolyzed into AMP. Through cell surface CD73 (Ecto-5'-nucleotidase), regulatory T cells can act on extracellular AMP to generate immunosuppressive adenosine. CD39 is involved in the control of the extracellular pool of phosphorylated nucleosides, the suppression of inflammation and immunity, and the regulation of platelet activation.
The antibody was conjugated to BD Horizon™ BV510 which is part of the BD Horizon Brilliant™ Violet family of dyes. With an Ex Max of 405-nm and Em Max at 510-nm, BD Horizon™ BV510 can be excited by the violet laser and detected in the BD Horizon™ V500 (525/50-nm) filter set. BD Horizon™ BV510 conjugates are useful for the detection of dim markers off the violet laser.