the regioselectivity of control cytochrome p-450 for metabolism of mcbs at the 4 ' position was not altered by preinduction of cytochrome p-450 with 2,4,2',4'-tetrachlorobiphenyl ( tcb ) or cytochrome p-448 with 3,4,3 ' , 4'-tcb .
C0025519
metabolism
C0010762
cytochrome p-450