Ready-to-use ELISA kits are available for the detection of Rh Family, B Glycoprotein, an alias of the protein, Rh family B glycoprotein (gene/pseudogene). The official gene symbol is RHBG. The protein, with a mass of 47.2 kDa and length of 441 residues, is reported to be membrane-associated. It is a member of the Ammonium transporter (TC 2.A.49) family, Rh subfamily and may be known by other names, including: SLC42A2, Rhesus blood group B glycoprotein, Rh family B glycoprotein, and ammonium transporter Rh type B.