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In enzymology, a 3β-hydroxy-5α-steroid dehydrogenase () is an enzyme that catalyzes the chemical reaction :3β-hydroxy-5α-pregnane-20-one + NADP+ 5α-pregnan-3,20-dione + NADPH + H+ Thus, the two substrates of this enzyme are 3β-hydroxy-5α-pregnane-20-one (allopregnanolone) and NADP+, whereas its 3 products are 5α-pregnan-3,20-dione, NADPH, and H+. This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is 3β-hydroxy-5α-steroid:NADP+ 3-oxidoreductase. ==References== * * 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「3beta-hydroxy-5alpha-steroid dehydrogenase」の詳細全文を読む スポンサード リンク
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