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. Author manuscript; available in PMC: 2008 Oct 22.
Published in final edited form as: Horm Behav. 2005 Nov;48(4):461–473. doi: 10.1016/j.yhbeh.2005.04.005

Figure 1.

Figure 1

Simplified diagram of sex steroid synthesis. Steroids are in bold; enzymes are in italics. Steroids: PREG=pregnenolone; PROG=progesterone; DHEA=dehydroepiandrosterone; AE=androstenedione; T=testosterone; E1=estrone; E2=17β-estradiol. Enzymes: P450scc=Cytochrome P450 side chain cleavage; P450c17=Cytochrome P450 17α-hydroxylase/C17,20 lyase; 3β-HSD=3β-hydroxysteroid dehydrogenase/isomerase; 17β-HSD=17β-hydroxysteroid dehydrogenase; Aromatase=Cytochrome P450 aromatase.