Cytochrome b5 did not exert any effect on NADPH-dependent aniline hydroxylation in the absence of acetone or 2, 2'-bipyridine, whereas cytochrome b5 exhibited a stimulatory effect on the reaction in the presence of acetone or 2, 2'-bipyridine. In addition, cytochrome b5 did not have any significant effect on the cumerie hydroperoxide-dependent reaction in the presence of acetone or 2, 2'-bipyridine.
