UDP-N-acetyl-alpha-D-glucosamine = UDP-N-acetyl-alpha-D-galactosamine
udp-n-acetyl-alpha-d-glucosamine = udp-n-acetyl-alpha-d-galactosamine
"UDP-N-acetylglucosamine 4-epimerase"
"udp-n-acetylglucosamine 4-epimerase"