Ready-to-use ELISA kits are available for the detection of MAP-kinase activating death domain, an alias of the protein, MAP kinase activating death domain. The official gene symbol is MADD. The protein, with a mass of 183.3 kDa and length of 1647 residues, is reported to be cytoplasmic and membrane-associated. It is a member of the MADD family and may be known by other names, including: RAB3GEP, IG20, insulinoma glucagonoma clone 20, Rab3 GDP/GTP exchange factor, and MAP kinase-activating death domain protein.