In enzymology, a N-acylmannosamine 1-dehydrogenase (EC 1.1.1.233) is an enzyme that catalyzes the chemical reaction:N-acyl-D-mannosamine + NAD+ N-acyl-D-mannosaminolactone + NADH + H+. Thus, the two substrates of this enzyme are N-acyl-D-mannosamine and NAD+, whereas its 3 products are N-acyl-D-mannosaminolactone, 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.http://www.creative-enzymes.com/product/NAcylmannosamine-1Dehydrogenase-From-Pseudomonas-Sp-Recombinant_1311.html