Anti-oligodendrocyte-myelin glycoprotein antibodies enable researchers to detect and measure the oligodendrocyte-myelin glycoprotein antigen in biological samples. This target is a reported synonym of the OMG gene, which encodes oligodendrocyte myelin glycoprotein. This protein is known to function in cell adhesion, among other biological roles. The human version of oligodendrocyte-myelin glycoprotein has a canonical amino acid length of 440 residues and a protein mass of 49.6 kilodaltons. It is reported to be localized in the cell membrane of cells and notably expressed in the testis, hippocampus, cerebral cortex, cerebellum, and caudate.