image/svg+xml
H
H
H
HO
O
O
OH
HO
O
O
OH
HO
OH
O
HO
O
OH
HO
O
HO
O
O
OH
O
O
OH
OH
O
HO
HO
OH
O
O
O
O
OH
O
O
O
OH
O
OH
H
Cholesterol
Pregnenolone
Progesterone
Deoxy-corticosterone
Corticosterone
17α-hydroxypregnenolone
17α-hydroxyprogesterone
11-deoxycortisol
Cortisol
Dehydroepi-androsterone
Androste-nedione
Estrone
Androstenediol
Testosterone
Estradiol
Dihydrotestosterone
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Estriol
HO
OH
OH
Cellular location
Mitochondria
Smooth endoplasmic
reticulum
3β-hydroxysteroid dehydrogenase (3-beta-HSD)
17α-hydroxylase
17,20 lyase
17β-HSD
(liver and placenta)
21α-hydroxylase
Aromatase
11β-hydroxylase
5α-reductase
Progestagens (21 carbons)
OH
HO
Androgens (19 carbons)
Estrogens (18 carbons)
Glucocorticoids
(21 carbons)
Aldosteronesynthase
Mineralocorticoids
(21 carbons)
of enzymes
Cholesterol side-chaincleavage enzyme
Aldosterone
O
HO
O
O
OH