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[Diminished activity of testosterone-16-alpha hydroxylase in bovine liver microsomes]
Annales De Recherches Veterinaires. Annals of Veterinary Research
|January 1, 1984
Abstract:
Testosterone 16 alpha hydroxylase is a liver microsome-bound, dependent monooxygenase cytochrome P 450. In contrast with the rat and the mouse, 16 alpha hydroxylase activity appeared to be very low in the bovine liver and was very similar to the human values. By contrast, the level of cytochrome P 450 in the liver protein is very similar in all species. In the bovine species, the activity of the enzyme was 15.14 +/- 7.05 pmol/(min x mg of microsomal protein) and the level of cytochrome P 450 was 0.845 +/- 0.196 nmol/mg of microsomal protein.