enzyme inactivation and antibody inhibition studies show that microsomes from both phenobarbital- and non-phenobarbital-treated rats are needed to accurately monitor the inactivation of the major phenobarbital-inducible cytochrome p-450 isozyme ( pb-b ) and of the major constitutive androstenedione 16 alpha-hydroxylase ( ut-a ) .
C0014442
enzyme
C0022173
isozyme