familial hypercholanaemiaA disorder (OMIM:607748) characterised by elevated serum bile acid concentrations, pruritus, and fat malabsorption.
Caused by defects of
• TJP2, which encodes tight junction protein 2;
• BAAT, which encodes an enzyme involved in bile acid-amino acid conjugate formation; and
• EPHX1, which encodes epoxide hydrolase-1, a biotransformation enzyme.