Ready-to-use ELISA kits are available for the detection of Carbonic Anhydrase IV, an alias of the protein, carbonic anhydrase 4. The official gene symbol is CA4. The kits can detect several species variants of the protein, including: human, bovine, chicken, primate, guinea pig, and other mammalian. The protein, with a mass of 35 kDa and length of 312 residues, is reported to be membrane-associated. It is a member of the Alpha-carbonic anhydrase family and may be known by other names, including: RP17, Car4, carbonic dehydratase IV, carbonic anhydrase IV, carbonate dehydratase IV, and CA-IV.