A potent and highly selective inhibitor of human alpha-1,3-fucosyltransferase via click chemistry.
Potent inhibitors of fucosyltransferases, and glycosyltransferases in general, have been elusive due to the inherent barriers surrounding the family of glycosyltransfer reactions. The problems of weak substrate affinity and low catalytic proficiency of fucosyltransferase was offset by recruiting additional binding features, in this case hydrophobic interactions, to produce a high affinity inhibitor, 24, with Ki = 62 nM. The molecule was identified from a GDP-triazole library of 85 compounds, which was produced by the Cu(I)-catalyzed [2 + 3] cycloaddition reaction between azide and acetylene reactants, followed by in situ screening without product isolation.
Lee
Lac V
LV
Department of Chemistry and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 Torrey Pines Road, La Jolla, California 92037, USA.
Mitchell
Michael L
ML
Huang
Shih-Jung
SJ
Fokin
Valery V
VV
Sharpless
K Barry
KB
Wong
Chi-Huey
CH
D001386:Azides / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D001667:Binding, Competitive; D004791:Enzyme Inhibitors / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology; D005647:Fucosyltransferases / Q000037:antagonists & inhibitors* / Q000737:chemistry; D006153:Guanosine Diphosphate / Q000031:analogs & derivatives; D006801:Humans; D057927:Hydrophobic and Hydrophilic Interactions; D007700:Kinetics; D013379:Substrate Specificity; D014230:Triazoles / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology
D001386:Azides; D004791:Enzyme Inhibitors; D014230:Triazoles; D006153:Guanosine Diphosphate; D005647:Fucosyltransferases; C031692:galactoside 3-fucosyltransferase