Imidazolium-based warheads strongly influence activity of water-soluble peptidic transglutaminase inhibitors
摘要:
New peptidic water-soluble inhibitors are reported. In addition to the carboxylate moiety, a new polar warhead was explored. Depending on the size of its substituents, the newly appended imidazolium scaffold designed to enhance the hydrophilic character of the inhibitors could induce a good inhibition for tissue transglutaminase (TG2) and blood coagulation factor XIIIa (EXIIIa). Correlated with the narrow tunnel that hosts the target catalytic cysteine residue, the various modulations suggest a bent conformation of the ligands as the binding pattern mode. Analogues in the dialkylsulfonium series were also tested and showed specificity for TG2 over FXIIIa. (c) 2013 Elsevier Masson SAS. All rights reserved.
Synthesis of potent water-soluble tissue transglutaminase inhibitors
摘要:
Dipeptide-based sulfonium peptidylmethylketones derived from 6-diazo-5-oxo-L-norleucine (DON) have been investigated as potential water-soluble inhibitors of extracellular transglutaminase. The lead compounds were prepared in four steps and exhibited potent activity against tissue transglutaminase. (c) 2008 Elsevier Ltd. All rights reserved.
Synthesis of potent water-soluble tissue transglutaminase inhibitors
作者:Martin Griffin、Alexandre Mongeot、Russell Collighan、Robert E. Saint、Richard A. Jones、Ian G.C. Coutts、Daniel L. Rathbone
DOI:10.1016/j.bmcl.2008.09.006
日期:2008.10
Dipeptide-based sulfonium peptidylmethylketones derived from 6-diazo-5-oxo-L-norleucine (DON) have been investigated as potential water-soluble inhibitors of extracellular transglutaminase. The lead compounds were prepared in four steps and exhibited potent activity against tissue transglutaminase. (c) 2008 Elsevier Ltd. All rights reserved.
Imidazolium-based warheads strongly influence activity of water-soluble peptidic transglutaminase inhibitors
New peptidic water-soluble inhibitors are reported. In addition to the carboxylate moiety, a new polar warhead was explored. Depending on the size of its substituents, the newly appended imidazolium scaffold designed to enhance the hydrophilic character of the inhibitors could induce a good inhibition for tissue transglutaminase (TG2) and blood coagulation factor XIIIa (EXIIIa). Correlated with the narrow tunnel that hosts the target catalytic cysteine residue, the various modulations suggest a bent conformation of the ligands as the binding pattern mode. Analogues in the dialkylsulfonium series were also tested and showed specificity for TG2 over FXIIIa. (c) 2013 Elsevier Masson SAS. All rights reserved.