Claim: Opine dehydrogenase is an enzyme that belongs to the family of oxidoreductases, it has three substrates (which is typically the chemical species being observed in a chemical reaction, which reacts with a reagent to generate a product), and four products.
Evidence: This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-NH group of donors with NAD+ or NADP+ as acceptor. The 3 substrates of this enzyme are [[(2S)-2-{[1-(R)-carboxyethyl]amino}pentanoate]], NAD, and H2O, whereas its 4 products are L-2-aminopentanoic acid, pyruvate, NADH, and H. In chemistry, a substrate is typically the chemical species being observed in a chemical reaction, which reacts with a reagent to generate a product.