Sequoyitol dehydrogenase

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In enzymology, a sequoyitol dehydrogenase (EC is an enzyme that catalyzes the chemical reaction

5-O-methyl-myo-inositol + NAD+ 2D-5-O-methyl-2,3,5/4,6-pentahydroxycyclohexanone + NADH + H+

Thus, the two substrates of this enzyme are 5-O-methyl-myo-inositol and NAD+, whereas its 3 products are 2D-5-O-methyl-2,3,5/4,6-pentahydroxycyclohexanone, 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 5-O-methyl-myo-inositol:NAD+ oxidoreductase. This enzyme is also called D-pinitol dehydrogenase.


  • IUBMB entry for
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  • Ruis H, Hoffmann-Ostenhof O (1969). "Enzymic epimerization of sequoyitol to D-pinitol in Trifolium incarnatum". Eur. J. Biochem. 7: 442&ndash, 8. PMID 4389340.

External links

The CAS registry number for this enzyme class is 37250-72-9.

Gene Ontology (GO) codes