D-pinitol dehydrogenase

In enzymology, D-pinitol dehydrogenase () is an enzyme that catalyzes the chemical reaction

The two substrates of this enzyme are pinitol and oxidised nicotinamide adenine dinucleotide phosphate (NADP⁺). Its products are 2D-5-O-methyl-2,3,5/4,6-pentahydroxycyclohexanone, reduced NADPH, and a proton.

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 1D-3-O-methyl-chiro-inositol:NADP⁺ oxidoreductase. This enzyme is also called 5D-5-O-methyl-chiro-inositol:NADP⁺ oxidoreductase.

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