Provided below are ELISA kits targeting aquaporin 5, a human protein encoded by AQP5. This protein is 265 amino acids long, with a mass of 28.3 kDa, and is a member of the MIP/aquaporin (TC 1.A.8) family. This is reported to be a membrane protein. There is a noted implication in Keratoderma, palmoplantar, Bothnian type. Other alias names for this protein include: AQP-5, and PPKB. ELISA kits are available that are reactive to human, mouse, rat, bovine, chicken, primate, and other mammalian variants of the target antigen.