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-acetyl-alpha-D-glucosamine = UDP-N-acetyl-alpha-D-galactosamine
udp-n-acetyl-alpha-d-glucosamine = udp-n-acetyl-alpha-d-galactosamine