the 3 alpha-hydroxysteroid dehydrogenase ( 3 alpha-hsd ) , 3 beta-hydroxysteroid dehydrogenase ( 3 beta-hsd ) and 17 beta-hydroxysteroid dehydrogenase ( 17 beta-hsd ) appeared intensely reactive in the differentiating excretory cells , and weakly reactive in the basal cells and in the epithelial cells of the proximal portion of the ducts .
C0048751
3 alpha-hydroxysteroid dehydrogenase
C0000413
3 beta-hydroxysteroid dehydrogenase