liver, human, glucuronidation, activities, metabolic, microsomal, enzyme, p450, ugts, ugt1a9, ugt1a1, udpglucuronosyltransferase, ugt1a6, substrate, ugt1a7, cyp3a5, ahr, drug, hepatitis, metabolites. Here, UGT1A1 is linked to hepatitis A virus infection.