There are 3 CD39 protein produced in house with high quality which are covering various species. Among these CD39 proteins, there are 1 Human CD39 protein, 1 Mouse CD39 protein, 1 Cynomolgus CD39 protein. All these CD39 protein are expressed by different host cells. 3 CD39 proteins are expressed by Baculovirus-Insect Cells . These CD39 proteins are produced with different tags, such as His Tag.