| cholestanetetraol 26-dehydrogenase | |
| Ec Number: | 1.1.1.161 |
| Cas Number: | 62213-60-9 |
| Go Code: | 0047748 |
In enzymology, a cholestanetetraol 26-dehydrogenase is an enzyme that catalyzes the chemical reaction
(25R)-5beta-cholestane-3alpha,7alpha,12alpha,26-tetraol + NAD+
\rightleftharpoons
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 cholestanetetraol 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.