fragments ( 50 mg ) were incubated for 3 hr with 10 muci of the following tritium-labelled substrates : pregnenolone , progesterone , 17-hydroxypregnenolone , 17-hydroxyprogesterone , dehydroepiandrosterone , androstenedione , or testosterone .
C0373704
pregnenolone
C0376260
17-hydroxypregnenolone