Invitrogen™ CD39 Monoclonal Antibody (A1), PE

Descripción

This antibody has been shown to block MHC-independent target cell recognition by hapten-specific CTL. Reconstitute with 1 mL of distilled water. After reconstitution, store product undiluted at 4°C in the dark. For FACS analysis, use 10 μL of the suggested working dilution to label 1x10^6 cells in 100 μL. Mouse anti Human CD39, clone A1 recognizes the human CD39 cell surface antigen, a approximately 70-100 kDa molecule expressed on peripheral blood B cells, T cells and monocytes, and weakly expressed by granulocytes.

CD39 is an integral membrane protein characterized by two transmembrane domains and forms a homotetramer structure. It is recognized as the most prominent ectoenzyme within the immune system, primarily functioning to remove toxic extracellular ATP by converting it into ADP or AMP. CD39 works in conjunction with CD73 to hydrolyze ATP and is well characterized on Langerhans cells. Originally identified on activated lymphocytes, CD39 is expressed on a variety of immune cells, including peripheral blood B cells, monocytes, and T cell clones. It is also found on a subset of T cells, B cells, and dendritic cells, with weaker expression observed on monocytes and granulocytes. The CD39 cell surface antigen is a 70-100kD molecule, and its expression is induced on T cells and increases on B cells as a late activation antigen. CD39 possesses intrinsic ecto-ATPase activity, playing a crucial role in modulating extracellular nucleotide levels and contributing to immune regulation.