Anti-GPR66 antibodies enable researchers to detect and measure the GPR66 antigen in biological samples. This target is a reported synonym of the NMUR1 gene, which encodes neuromedin U receptor 1. This protein is known to function in the transport of ions and GPCR signaling pathways, among other biological roles. The human version of GPR66 has a canonical amino acid length of 426 residues and a protein mass of 47.4 kilodaltons. It is reported to be localized in the cell membrane of cells and widely expressed in many tissue types. Other names for this target antigen include (FM-3), (FM-3), and FM-3.