Ready-to-use ELISA kits are available for the detection of erythroblast Membrane-Associated Protein, an alias of the protein, erythroblast membrane associated protein (Scianna blood group). The official gene symbol is ERMAP. The protein, with a mass of 52.6 kDa and length of 475 residues, is reported to be cytoplasmic and membrane-associated. It is a member of the Immunoglobulin superfamily, BTN/MOG family and may be known by other names, including: PRO2801, BTN5, radin blood group antigen, Scianna blood group (Sc), Radin blood group (Rd), and erythroid membrane-associated protein, and SC.