5.1.3.7 UDP-N-acetylglucosamine 4-epimerase; UDP acetylglucosamine epimerase; uridine diphosphoacetylglucosamine epimerase; uridine diphosphate N-acetylglucosamine-4-epimerase; uridine 5'-diphospho-N-acetylglucosamine-4-epimerase; UDP-N-acetyl-D-glucosamine • • •