The NTPDase-1 ELISA kits listed below are analytical tools for measuring concentrations of NTPDase-1 in various samples. NTPDase-1 is an alternative name for the human ENTPD1 gene, which encodes the protein, ectonucleoside triphosphate diphosphohydrolase 1. It has been mentioned that NTPDase-1 plays a role in cell adhesion, among other functions. Structurally, the ENTPD1 protein is 510 amino acid residues in length and 58 kilodaltons in mass. However, as many as 6 protein isoforms have been identified. It is localized to the membrane of the cell. In terms of tissue specificity, it is noted to be expressed primarily on activated lymphoid cells. This protein is known to be palmitoylated and glycosylated. Other names for this target antigen include ATPDase, CD39, and NTPDase-1.