Erythrulose reductase

In enzymology, erythrulose reductase is an enzyme that catalyzes the chemical reaction
The two substrates of this enzyme are D-threitol and oxidised nicotinamide adenine dinucleotide phosphate. Its products are D-erythrulose, 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 erythritol:NADP⁺ oxidoreductase. This enzyme is also called D-erythrulose reductase.