PMID:15895686

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Citation

Bernier, S, Dubois, DY, Habegger-Polomat, C, Gagnon, LP, Lapointe, J and Chênevert, R (2005) Glutamylsulfamoyladenosine and pyroglutamylsulfamoyladenosine are competitive inhibitors of E. coli glutamyl-tRNA synthetase. J Enzyme Inhib Med Chem 20:61-7

Abstract

5'-O-[N-(L-glutamyl)-sulfamoyl] adenosine is a potent competitive inhibitor of E. coli glutamyl-tRNA synthetase with respect to glutamic acid (K(i) = 2.8 nM) and is the best inhibitor of this enzyme. It is a weaker inhibitor of mammalian glutamyl-tRNA synthetase (K(i) = 70 nM). The corresponding 5'-O-[N-(L-pyroglutamyl)-sulfamoyl] adenosine is a weak inhibitor (K(i) = 15 microM) of the E. coli enzyme.

Links

PubMed Online version:10.1080/14756360400002007

Keywords

Adenosine/analogs & derivatives; Adenosine/chemical synthesis; Adenosine/pharmacology; Animals; Binding Sites; Binding, Competitive; Enzyme Inhibitors/chemical synthesis; Enzyme Inhibitors/pharmacology; Escherichia coli/enzymology; Glutamate-tRNA Ligase/antagonists & inhibitors; Glutamate-tRNA Ligase/metabolism; Liver/enzymology; Mice; RNA, Transfer, Glu/metabolism; Substrate Specificity

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