Provided below are ELISA kits targeting gap junction protein alpha 1, a human protein encoded by GJA1. This protein is 382 amino acids long, with a mass of 43 kDa, and is a member of the Connexin family, Alpha-type (group II) subfamily. This is reported to be a membrane protein. There is a noted implication in Oculodentodigital dysplasia. Other alias names for this protein include: gap junction alpha-1 protein, connexin-43, gap junction 43 kDa heart protein, gap junction protein alpha 1 43kDa, CMDR, CX43, and EKVP.