Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In enzymology, an UDP-N-acetylglucosamine 2-epimerase (EC 5.1.3.14) is an enzyme that catalyzes the chemical reaction. UDP-N-acetyl-D-glucosamine = UDP-N-acetyl-D-mannosamine. Hence, this enzyme has one substrate, UDP-N-acetyl-D-glucosamine, and one product, UDP-N-acetyl-D-mannosamine. This enzyme belongs to the family of isomerases, specifically those racemases and epimerases acting on carbohydrates and derivatives. The systematic name of this enzyme class is UDP-N-acetyl-D-glucosamine 2-epimerase. Other names in common use include UDP-N-acetylglucosamine 2''-epimerase, uridine diphosphoacetylglucosamine 2''-epimerase, uridine diphospho-N-acetylglucosamine 2''-epimerase, and uridine diphosphate-N-acetylglucosamine-2''-epimerase. This enzyme participates in aminosugars metabolism.