| cytochromes p450 (cyp) in tropical fishes: catalytic activities, expression of multiple cyp proteins and high levels of microsomal p450 in liver of fishes from bermuda. | hepatic microsomes prepared from 10 fish species from bermuda were studied to establish features of cytochrome p450 (cyp) systems in tropical marine fish. the majority (7/10) of the species had total p450 content between 0.1 and 0.5 nmol/mg, and cytochrome b5 content between 0.025 and 0.25 nmol/mg. ethoxycoumarin o-deethylase (ecod) and aminopyrine n-demethylase (apnd) rates in these 7 species were 0.23-2.1 nmol/min/mg and 0.5-11 nmol/min/mg, respectively, similar to rates in many temperate fish ... | 1997 | 9080675 |