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In enzymology, a cholestanetetraol 26-dehydrogenase () is an enzyme that catalyzes the chemical reaction :(25R)-5beta-cholestane-3alpha,7alpha,12alpha,26-tetraol + NAD+ (25R)-3alpha,7alpha,12alpha-trihydroxy-5beta-cholestan-26-al + NADH + H+ Thus, the two substrates of this enzyme are (25R)-5beta-cholestane-3alpha,7alpha,12alpha,26-tetraol and NAD+, whereas its 3 products are (25R)-3alpha,7alpha,12alpha-trihydroxy-5beta-cholestan-26-al, NADH, 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 (25R)-5beta-cholestane-3alpha,7alpha,12alpha,26-tetraol:NAD+ 26-oxidoreductase. Other names in common use include cholestanetetrol 26-dehydrogenase, 5beta-cholestane-3alpha,7alpha,12alpha,26-tetrol dehydrogenase, TEHC-NAD oxidoreductase, 5beta-cholestane-3alpha,7alpha,12alpha,26-tetraol:NAD+, and 26-oxidoreductase. This enzyme participates in bile acid biosynthesis. ==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「Cholestanetetraol 26-dehydrogenase」の詳細全文を読む スポンサード リンク
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