2 enoate reductase

In enzymology, a 2-enoate reductase (EC 1.3.1.31) is an enzyme that catalyzes the chemical reaction

Thus, the two substrates of this enzyme are butanoate and NAD⁺, whereas its 3 products are 2-butenoate, NADH, and H⁺.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-CH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is butanoate:NAD+ Delta2-oxidoreductase. This enzyme is also called enoate reductase. This enzyme participates in phenylalanine metabolism. It has 4 cofactors: FAD, Iron, Sulfur, and Iron-sulfur.