| EC:1.1.1.50 3-alpha-hydroxysteroid dehydrogenase (B-specific). | TG | PF | CP | HS |
| EC:1.1.1.53 3-alpha(or 20-beta)-hydroxysteroid dehydrogenase. | TG | PF | CP | HS |
| EC:1.1.1.145 3-beta-hydroxy-delta(5)-steroid dehydrogenase. | TG | PF | CP | HS |
| EC:1.1.1.146 11-beta-hydroxysteroid dehydrogenase. | TG | PF | CP | HS |
| EC:1.1.1.149 20-alpha-hydroxysteroid dehydrogenase. | TG | PF | CP | HS |
| EC:1.3.1.3 Cortisone beta-reductase. | TG | PF | CP | HS |
| EC:1.3.1.23 Cholestenone 5-beta-reductase. | TG | PF | CP | HS |
| EC:1.3.1.30 Progesterone 5-alpha-reductase. | TG | PF | CP | HS |
| EC:1.3.99.6 3-oxo-5-beta-steroid 4-dehydrogenase. | TG | PF | CP | HS |
| EC:1.14.15.4 Steroid 11-beta-monooxygenase. | TG | PF | CP | HS |
| EC:1.14.15.5 Corticosterone 18-monooxygenase. | TG | PF | CP | HS |
| EC:1.14.15.6 Cholesterol monooxygenase (side-chain cleaving). | TG | PF | CP | HS |
| EC:1.14.99.9 Steroid 17-alpha-monooxygenase. | TG | PF | CP | HS |
| EC:1.14.99.10 Steroid 21-monooxygenase. | TG | PF | CP | HS |
| EC:1.14.99.14 Progesterone 11-alpha-monooxygenase. | TG | PF | CP | HS |
| EC:5.3.3.1 Steroid delta-isomerase. | TG | PF | CP | HS |