during the entire estrous cycle , 3 alpha-hydroxysteroid dehydrogenase and 3 beta-hydroxysteroid dehydrogenase activity can be found in the theca of tertiary follicles and in the interstitial cells , whereas the theca of secondary follicles and the granulosa of healthy follicles do not exhibit any enzyme activity .
C0048751
3 alpha-hydroxysteroid dehydrogenase
C0000413
3 beta-hydroxysteroid