Article
Molecular Biology of the 3β-Hydroxysteroid Dehydrogenase/Δ5-Δ4 Isomerase Gene Family
4 Jan 2005
Abstract excerpt
The 3beta-hydroxysteroid dehydrogenase/Delta(5)-Delta(4) isomerase (3beta-HSD) isoenzymes are responsible for the oxidation and isomerization of Delta(5)-3beta-hydroxysteroid precursors into Delta(4)-ketosteroids, thus catalyzing an essential step in the formation of all classes of active steroid hormones. In humans, expression of the type I isoenzyme accounts for the 3beta-HSD activity found in placenta and...
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