UDP-2-acetamido-2-deoxy-alpha-D-glucuronate = UDP-2-acetamido-2-deoxy-alpha-D-galacturonate
udp-2-acetamido-2-deoxy-alpha-d-glucuronate = udp-2-acetamido-2-deoxy-alpha-d-galacturonate
"UDP-N-acetyl-alpha-D-glucosaminouronate 4-epimerase"
"udp-n-acetyl-alpha-d-glucosaminouronate 4-epimerase"