Anti-CUZD1 antibodies are used in the immunodetection of the protein CUB and zona pellucida like domains 1. In humans, the canonical protein has a reported length of 607 amino acid residues and a mass of 68.2 kDa. Up to 3 different isoforms have been reported for this protein. It is notably expressed in the pancreas and epithelium of ovary. CUZD1 is known to be involved with cell adhesion and the cell cycle. Post-translational modifications have been described, including glycosylation. Synonyms for this target antigen include ERG1, ITMAP1, UO-44, CUB and zona pellucida-like domain-containing protein 1, CUB and ZP domain-containing protein 1, and ERG-1. CUZD1 gene orthologs have been reported in the mouse, rat, frog, chimpanzee and chicken species. ELISA, Western Blot, and Immunohistochemistry are common applications for CUZD1 antibodies.