Anti-ENTPD4 antibodies are used in the immunodetection of the protein ectonucleoside triphosphate diphosphohydrolase 4. In humans, the canonical protein has a reported length of 616 amino acid residues and a mass of 70.3 kDa. Its subcellular localization is in the Golgi, lysosomes, and cytoplasmic vesicles. Up to 2 different isoforms have been reported for this protein. It is ubiquitously expressed across many tissue types. A member of the GDA1/CD39 NTPase protein family, ENTPD4 is known to catalyze the hydrolysis of nucleoside triphosphates and diphosphates in a calcium- or magnesium-dependent manner, with a preference for pyrimidines. Post-translational modifications have been described, including glycosylation. Synonyms for this target antigen include LAP70, LYSAL1, NTPDase-4, UDPase, Golgi UDPase, and LALP70. ENTPD4 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Western Blot is a widely used application for the ENTPD4 antibodies listed below. In addition, ELISA is also a common application.