title: 3-Methoxy-4-aminoazobenzene, a selective inducer for a high spin form of cytochrome P-448 in rat liver microsomes.
abstract: Treatment of Sprague Dawley rats with 3-methoxy-4-aminoazobenzene (3-MeO-AAB) resulted in striking increase of the activity of hepatic microsomal cytochrome P-450s which could efficiently catalyze the mutagenic activation of hepatocarcinogenic aromatic amines such as a tryptophan-pyrolysate component, Trp P-2, and a glutamic acid-pyrolysate component, Glu P-1. The 3-MeO-AAB-induced cytochrome P-450 (3-MeO-AAB-P-450) was examined for the molecular character by immuno-Western blotting using monoclonal antibody to 3-methylcholanthrene-induced cytochrome P-448 (P-448H; m.w. 54,000).
mesh_terms: D000818:Animals; D001391:Azo Compounds / Q000494:pharmacology*; D002384:Catalysis; D019388:Cytochrome P-450 CYP1A2; D003577:Cytochrome P-450 Enzyme System / Q000096:biosynthesis; D003580:Cytochromes / Q000096:biosynthesis*; D004591:Electrophoresis, Polyacrylamide Gel; D004790:Enzyme Induction / Q000187:drug effects; D007120:Immunochemistry; D008297:Male; D008862:Microsomes, Liver / Q000201:enzymology*; D009152:Mutagenicity Tests; D051381:Rats; D011919:Rats, Inbred Strains; D010128:p-Aminoazobenzene / Q000031:analogs & derivatives / Q000494:pharmacology*
chemical_list: D001391:Azo Compounds; D003580:Cytochromes; D010128:p-Aminoazobenzene; C044436:3-methoxy-4-aminoazobenzene; D003577:Cytochrome P-450 Enzyme System; C017170:Cyp1a2 protein, rat; D019388:Cytochrome P-450 CYP1A2