ID 1.1.3.29 DE N-acylhexosamine oxidase. CA N-acetyl-D-glucosamine + O(2) = N-acetyl-D-glucosaminate + H(2)O(2). CC -!- Also acts on N-glycolylglucosamine, N-acetylgalactosamine and, more CC slowly, on N-acetylmannosamine. //