Anti-mor antibodies enable researchers to detect and measure the mor antigen in biological samples. This target is a reported synonym of the OPRM1 gene, which encodes opioid receptor mu 1. This protein is known to function in the regulation of cell proliferation, among other biological roles. The human version of mor has a canonical amino acid length of 400 residues and a protein mass of 44.8 kilodaltons, although 18 isoforms have been identified. It is reported to be localized in the cell membrane of cells and notably expressed in the testis. Other names for this target antigen include LMOR, M-OR-1, and MOP. Western Blot is the most common application for the mor antibodies listed below. ELISA and Immunohistochemistry are also common applications.