The ELISA kits listed below target ABCB4, the symbol for the human gene, ATP binding cassette subfamily B member 4, and a member of the ABC transporter superfamily, ABCB family, Multidrug resistance exporter (TC 3.A.1.201) subfamily. The protein has an enzyme classification of xenobiotic-transporting ATPase. The protein encoded by ABCB4 has a predicted amino acid length of 1286, a mass of 141.5 kDa, and a cytoplasmic and membrane subcellular localization. There are currently 3 reported isoforms, as well as sites of glycosylation. Pathologic involvement is reported in Cholestasis, progressive familial intrahepatic, 3. ABCB4 may also be known by the following names: multiple drug resistance 3, multidrug resistance protein 3, P-glycoprotein 3, ATP-binding cassette sub-family B member 4, and phosphatidylcholine translocator ABCB4, and GBD1. Orthologs of the gene, including human, mouse, rat, and other mammalian are available targets of several ELISA kits.