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Results 1 - 7 of 7
EC Number
Reaction
Commentary
Reference
UDP-N-acetyl-alpha-D-glucosamine = UDP-N-acetyl-alpha-D-mannosamine
2-epimerase-catalyzed elimination and readdition of UDP to the glycal intermediate may proceed through a transition state with significant oxocarbenium ion-like character
UDP-N-acetyl-alpha-D-glucosamine = UDP-N-acetyl-alpha-D-mannosamine
during epimerization, tritium from tritium-enriched water is incorporated into both UDP-N-acetyl-D-glucosamine and UDP-N-acetyl-D-mannosamine
UDP-N-acetyl-alpha-D-glucosamine = UDP-N-acetyl-alpha-D-mannosamine
mechanism proceeds via cleavage of the anomeric C-O bond, with 2-acetamidoglucal and UDP as enzyme-bound intermediates. It is likely that E1-eliminations via oxocarbenium intermediates are involved in the reaction
UDP-N-acetyl-alpha-D-glucosamine = UDP-N-acetyl-alpha-D-mannosamine
ordered mechanism, where UDP is the first product released followed by irreversible formation of N-acetyl-mannosamine. A two step mechanism is proposed which involves the elimination of UDP from UDP-N-acetylglucosamine to give a 2-acetamidoglucal intermediate which is subsequently converted to N-acetylmannosamine; products: UDP + N-acetyl-D-mannosamine
UDP-N-acetyl-alpha-D-glucosamine = UDP-N-acetyl-alpha-D-mannosamine
products: UDP + N-acetyl-D-mannosamine
UDP-N-acetyl-alpha-D-glucosamine = UDP-N-acetyl-alpha-D-mannosamine
products: UDP + N-acetyl-D-mannosamine; UDP-N-acetyl-D-mannosamine is not an intermediate
UDP-N-acetyl-alpha-D-glucosamine = UDP-N-acetyl-alpha-D-mannosamine
the mechanism involves a trans-elimination of monoprotic UDP to form 2-acetamidoglucal. Followed by a syn-addition, in the direction of UDP-N-acetyl-D-mannosamine formation
Results 1 - 7 of 7