cytochrome p-450 ( i-p-450 ( 16 ) alpha ) , which is associated with phenobarbital-induced testosterone 16 alpha-hydroxylation activity , was purified from livers of phenobarbital-treated female 129/j mice on the basis of the specific hydroxylation activity in fractions eluted from columns of octylamino-sepharose 4b , hydroxylapatite , deae-bio-gel a , and isobutyl-sepharose 4b .
C0031412
phenobarbital
C1875448
livers