the reaction proceeded optimally over a ph range of 6.0 to 7.2 and at a temperaturhe substrate specificity of the enzyme for other delta 4-3-ketosteroids and the ability of these steroids to inhibit the 5 alpha reduction of [ 1,2-3h ] progesterone as well as the effect of 17 beta-estradiol were also studied .
C0022640
ketosteroids
C0038317
steroids