Ectonucleoside triphosphate diphosphohydrolase 1 (NTDase 1 or CD39) belongs to the membrane-bound ecto-nucleoside triphosphates diphosphohydrolase family (E-NTPDases) that are characterized for their ability to hydrolyze nucleoside di- and triphosphates, such as ATP, in the presence of cations, i.e. CA2+ and Mg2+. CD39 is an important membrane protein containing two transmembrane domains and a large NTPDase active, extracellular region containing apyrase conserved regions. It is heavily glycosolated, having six known N-glycosolation sites, and functions on the plasma membrane’s outer surface. CD39 initiates the metabolism, of ATP and ADP to adenosine through a 2-step exzymatic reaction, providing extracellular adenosine for the purpose of regulating various inflammatory endpoints. It is a putative marker for B-cell activation and its expression has also been observed on NK-cells, dendritic cells, T-cells, and vascular endothelial cells. CD39 is a known inhibitor of ADP-induced platelet aggregation and may also play a role in angiogenesis.，官网链接：https://www.sigmaaldrich.cn/product/mm/04973 默克 科研、开发、生产。 作为生命科学行业的全球领先供应商，我们致力于为科研、生物技术开发和生产，以及制药药物疗法开发和生产提供各类解决方案和服务。

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