A cytochrome P450 aryl hydrocarbon hydroxylase that has specificity for ESTROGENS which it converts into 4-hydroxy estrogens. (umassmed.edu)
The hepatic nuclear fraction isolated from 3-methylcholanthrene (MC)-treated rats contained enhanced levels of cytochrome P-450 and aryl hydrocarbon hydroxylase [benzo(a)pyrene (BP) monooxygenase], whereas the activities of epoxide hydrase and reduced nicotinamide adenine dinucleotide phosphate-cytochrome c reductase and the concentration of cytochrome b5 were not altered. (lookformedical.com)
Benzo1
1992 . An improved fluorometric assay for dosimetry of benzo[a]pyrene diol-epoxide-DNA adducts in smokers' lung: comparisons with total bulky adducts and aryl hydrocarbon hydroxylase activity. (nih.gov)