Design and Combinatorial Development of Shield-1 Peptide Mimetics Binding to Destabilized FKBP12
作者:Daniel Madsen、Frederik P. Jørgensen、Daniel Palmer、Milena E. Roux、Jakob V. Olsen、Mikael Bols、Sanne Schoffelen、Frederik Diness、Morten Meldal
DOI:10.1021/acscombsci.9b00197
日期:2020.3.9
rapid structure evaluation prior to off-bead resynthesis. Subsequently, a series of 19 compounds were prepared and tested using a competitive fluorescence polarization assay, which led to the discovery of peptide ligands with low micromolar binding affinity towards the DD. The methodology represents a rapid approach for identification of a novel structure scaffold, where the screening and initial structure
Development of Potent Inhibitors of Botulinum Neurotoxin Type B
作者:Christine Anne、Serge Turcaud、Jean Quancard、Franck Teffo、Hervé Meudal、Marie-Claude Fournié-Zaluski、Bernard P. Roques
DOI:10.1021/jm0300680
日期:2003.10.1
Botulinum neurotoxins are the most potent toxins known to date. They are zinc-metalloproteases able to cleave selectively an essential component of neurotransmitter exocytosis, causing the syndrome of botulism characterized by a flaccid paralysis. There is a great interest in designing antagonists of the action of these toxins. One way is to inhibit their catalytic activity. In this study, we report the design of such inhibitors directed toward BoNT/B. A study of the S-1 subsite specificity, using several beta-amino thiols, has shown that this subsite prefers a p-carboxybenzyl moiety. The specificity of the S-1' and S-2' subsites was studied using two libraries of pseudotripeptides containing the S-1 synthon derived from the best beta-amino thiol tested. Finally, a selection of various non natural amino acids for the recognition of the "prime" domain led to the most potent inhibitor of BoNT/B described to date with a K-i value of 20 nM.