Synthesis and Analysis of Substrate Analogues for UDP-Galactopyranose Mutase: Implication for an Oxocarbenium Ion Intermediate in the Catalytic Mechanism
摘要:
UDP-D-galactofuranose ( 2), which is essential for both cell growth and virulence in many pathogenic microorganisms, is converted from UDP-D-galactopyranose (UDP-Galp, 1) by the flavin adenine dinucleotide (FAD)-dependent enzyme UDP-galactopyranose mutase (UGM). Here, we report the synthesis of UDP-GalOH ( 13) and show it as an inhibitor for UGM with a binding affinity similar to that of 1. These results are more consistent with a mechanism involving an oxocarbenium ion intermediate in UGM catalysis.
Synthesis and Analysis of Substrate Analogues for UDP-Galactopyranose Mutase: Implication for an Oxocarbenium Ion Intermediate in the Catalytic Mechanism
摘要:
UDP-D-galactofuranose ( 2), which is essential for both cell growth and virulence in many pathogenic microorganisms, is converted from UDP-D-galactopyranose (UDP-Galp, 1) by the flavin adenine dinucleotide (FAD)-dependent enzyme UDP-galactopyranose mutase (UGM). Here, we report the synthesis of UDP-GalOH ( 13) and show it as an inhibitor for UGM with a binding affinity similar to that of 1. These results are more consistent with a mechanism involving an oxocarbenium ion intermediate in UGM catalysis.