Anti-MRAP antibodies are used in the immunodetection of the protein melanocortin 2 receptor accessory protein. In humans, the canonical protein has a reported length of 172 amino acid residues and a mass of 19.1 kDa. Its subcellular localization is in the ER and cell membrane. Up to 4 different isoforms have been reported for this protein. It is reported to be expressed in adrenal cortex, testis, breast, thyroid, lymph node, ovary and fat. A member of the MRAP protein family, MRAP is known to be involved with protein localization to the plasma membrane. The MRAP gene has been associated with the disease, Glucocorticoid deficiency. Synonyms for this target antigen include fat cell-specific low molecular weight protein and fat tissue-specific low MW protein. MRAP gene orthologs have been reported in the mouse, rat, bovine, frog and chimpanzee species. Some MRAP antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. ELISA, Immunofluorescence, and Immunohistochemistry are also common applications.