1.14.99.53 [(1->4)-N-acetyl-beta-D-glucosaminyl]6 + ascorbate + O2 - [(1->4)-N-acetyl-beta-D-glucosaminyl]3-(1->4)-N-acetyl-2-deoxy-2-amino-D-glucono-1,5-lactone + [(1->4)-N-acetyl-beta-D-glucosaminyl]2 + dehydroascorbate + H2O - ? 443984 1.14.99.53 [(1->4)-N-acetyl-beta-D-glucosaminyl]n+m + reduced acceptor + O2 - [(1->4)-N-acetyl-beta-D-glucosaminyl]m-1-(1->4)-N-acetyl-2-deoxy-2-amino-D-glucono-1,5-lactone + [(1->4)-N-acetyl-beta-D-glucosaminyl]n + acceptor + H2O - ? 440005