[Cytochrome P450 inactivation on a cathode]

It was concluded on the grounds of spectrophotometric analysis of cytochrome P450 electrolysis products that cytochrome P450 unlike other hem-containing proteins is not reduced on the cathode. At the potential -1.5V it is reduced simultaneously with the transformation into cytochrome P420. Inactivation in the electric field on the electrode surface is irreversible. When the potential is above -1.4V no inactivation of cytochrome P450 takes place.