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In enzymology, a cortisone alpha-reductase () is an enzyme that catalyzes the chemical reaction :4,5alpha-dihydrocortisone + NADP+ cortisone + NADPH + H+ Thus, the two substrates of this enzyme are 4,5alpha-dihydrocortisone and NADP+, whereas its 3 products are cortisone, NADPH, and H+. This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-CH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is 4,5alpha-dihydrocortisone:NADP+ Delta4-oxidoreductase. Other names in common use include cortisone Delta4-5alpha-reductase, microsomal steroid reductase (5alpha), Delta4-3-ketosteroid reductase (5alpha), Delta4-3-oxosteroid-5alpha-reductase, NADPH:Delta4-3-oxosteroid-5alpha-oxidoreductase, and Delta4-5alpha-reductase. ==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「Cortisone alpha-reductase」の詳細全文を読む スポンサード リンク
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