Ready-to-use ELISA kits are available for the detection of G protein-coupled receptor 89, an alias of the protein, G protein-coupled receptor 89B. The official gene symbol is GPR89B. The protein has a mass of 52.9 kDa and length of 455 residues. It is a member of the Golgi pH regulator (TC 1.A.38) family and may be known by other names, including: GPR89C, GPR89, putative NF-kappa-B-activating protein 90, putative Golgi pH regulator C, G protein-coupled receptor 89C, and Golgi pH regulator B.