Hydroxysteroid dehydrogenase

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Hydroxysteroid dehydrogenase is a type of alcohol oxidoreductases which acts as a dehydrogenase upon a hydroxysteroid.

There are four types, classified by the number of the carbon acted upon:

Carbon	From	To
3	pregnenolone	progesterone
3	17-Hydroxypregnenolone	17-Hydroxyprogesterone
3	dehydroepiandrosterone	androstenedione
11	cortisol	cortisone
17	androstenedione	testosterone
20	progesterone	20-alpha-dihydroprogesterone

[edit] See also

• steroid hydroxylases

[edit] Additional images

Steroidogenesis

[edit] External links

• MeSH Hydroxysteroid+Dehydrogenases