Ichikawa S, Sakiyama H, Suzuki G, Hidari KI, and Hirabayashi Y (1996) Expression cloning of a cDNA for human ceramide glucosyltransferase that catalyzes the first glycosylation step of glycosphingolipid synthesis. Proc NatlAcad'Sci USA 93:4638-4643. Imamura M, Kumagai T, Sugihara N, and Furuno K (2003) High-performace liquid chromatographic assay of 3'-phosphoadenosine 5'-phosphosulfate (PAPS) and UDP-glcuuronic acid (UDPGA) in culture hepatic cell extracts. JHealth Sci 49:395-400. Iwano H, Yokota H, Ohgiya S, and Yuasa A (1999) The significance of amino acid residue Asp446 for enzymatic stability of rat UDP-glucuronosyltransferase UGT 1A6. Arch Biochem Biophys 363: 116-120. James MO (2001) Polychlorinated biphenyls: metabolism and metabolites, in PCBs. Recent Advances in the Environmental Toxicology and Health Effects (Robertson LW and Hansen LG eds) pp 35-45, The University Press of Kentucky, Lexington, KY. James MO, Altman AH, Morris K, Kleinow KM and Tong Z (1997) Dietary modulation of phase 1 and phase 2 activities with benzo[a]pyrene and related compounds in the intestine but not in the liver of the channel catfish, Ictalurus puncta~tus. Drug Metab Dispos 25:346-3 54. James MO, Tong Z, Rowland-Faux L, Venugopal CS and Kleinow KM (2001) Intestinal bioavailability and biotransformation of 3-hydroxybenzo[a]pyrene in an isolated perfused preparation from channel catfish, Ictalurus puncta~tus. Drug~etab Dispos 29:721-728. James MO and Rowland-Faux L (2003) Hydroxylated polychlorinated biphenyls as poor substrates but good inhibitors of the glucuronidation and sulfonation of hydroxylated benzo[a]pyrene metabolites. Fresenius Environ Bull 12:227-231. Jarman WM, Simon M, Norstrom RJ, Burns SA, Bacon CA, Simonelt BRT and Risebrough RW (1992) Global distribution of Tri s(4-chlorophenyl)methanol in high trophic level birds and mammals. Environ Sci Technol 26: 1770-1774. Kakuta Y, Pedersen LG, Carter CW, Negishi M, and Pedersen LC (1997) Crystal structure of estrogen sulphotransferase. Nature Structr Biol 11:904-908. Kester MH, Bulduk S, Tibboel D, Meinl W, Glatt H, Falany CN, Coughtrie MW, Bergman A, Safe SH, Kuiper GG, Schuur AG, Brouwer A and Visser TJ (2000) Potent inhibition of estrogen sulfotransferase by hydroxylated PCB metabolites: a novel pathway explaining the estrogenic activity of PCBs. Endocrinology 141:1897-1900. Kim KH (1991) Quantitative structure-activity relationships of the metabolism of drugs by uridine diphosphate glucuronosyltransferase JPharm Sci 80:966-970.