conversion of 5 alpha-pregnane-3,20-dione , 3 alpha-hydroxy-5 alpha-pregnan-20-one and 3 beta-hydroxy-5 alpha-pregnan-20-one to delta 16-c19 steroids by the reconstituted delta 16-c19-steroid synthetase system .
C0033006
pregnane
C0038317
steroids