Ariadne Genomics Inc. cortisol biosynthetic pathway testosterone biosynthetic pathway estradiol biosynthetic pathway e(3) e Cyp17a1 Cyp11a1 Fdx1 Fdxr NADPH(3) ---> NADP+(3) Hsd3b2 cholesterol Star aldosterone biosynthetic pathway estradiol cortisol pregnenolone ---> 17-hydroxypregnenolone NADP+ DHEA ---> estradiol NADPH cholesterol ---> pregnenolone pregnenolone ---> progesterone progesterone ---> aldosterone progesterone ---> cortisol 17-hydroxypregnenolone ---> cortisol DHEA progesterone 17-hydroxypregnenolone testosterone aldosterone pregnenolone Hsd3b1 Por Por ---> e NADP+(3) NADPH(3) NADPH(3) ---> e(3) NADPH ---> NADP+ 17-hydroxypregnenolone ---> DHEA