Provided below are ELISA kits targeting gap junction protein alpha 4, a human protein encoded by GJA4. This protein is 333 amino acids long, with a mass of 37.4 kDa, and is a member of the Connexin family, Alpha-type (group II) subfamily. This is reported to be a membrane protein. Other alias names for this protein include: gap junction alpha-4 protein, connexin-37, gap junction protein alpha 4 37kDa, and CX37.