Carba-Sugar Analogs of Glucosamine-6-Phosphate: New Activators for the glmS Riboswitch.

Autor: Stängle D; Department of Chemistry, University of Konstanz, Universitätsstraße 10, 78464, Konstanz, Germany., Silkenath B; Department of Chemistry, University of Konstanz, Universitätsstraße 10, 78464, Konstanz, Germany., Gehle P; LIMES Institute, Center for Aptamer Research & Development, University of Bonn, Gerhard-Domagk-Straße 1, 53121, Bonn, Germany., Esser A; LIMES Institute, Center for Aptamer Research & Development, University of Bonn, Gerhard-Domagk-Straße 1, 53121, Bonn, Germany., Mayer G; LIMES Institute, Center for Aptamer Research & Development, University of Bonn, Gerhard-Domagk-Straße 1, 53121, Bonn, Germany., Wittmann V; Department of Chemistry, University of Konstanz, Universitätsstraße 10, 78464, Konstanz, Germany.
Jazyk: angličtina
Zdroj: Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2023 Jan 12; Vol. 29 (3), pp. e202202378. Date of Electronic Publication: 2022 Nov 27.
DOI: 10.1002/chem.202202378
Abstrakt: Riboswitches are 5'-untranslated mRNA regions mostly found in bacteria. They are promising drug targets to overcome emerging bacterial resistance against commonly used antibiotics. The glmS riboswitch is unique among the family of riboswitches as it is a ribozyme that undergoes self-cleavage upon binding to glucosamine-6-phosphate (GlcN6P). Previously, we showed that carba glucosamine-6-phosphate (carba-GlcN6P) induces self-cleavage of the riboswitch with a potency similar to that of GlcN6P. Here, we report a synthetic approach to a new class of carba-GlcN6P derivatives with an alkoxy substituent in the carba position. Key features of the synthesis are a ring closing metathesis followed by a hydroboration. The strategy gives access to libraries of carba-GlcN6P derivatives. Ribozyme cleavage assays unraveled new activators for the glmS riboswitch from Listeria monocytogenes and Clostridium difficile.
(© 2022 The Authors. Chemistry - A European Journal published by Wiley-VCH GmbH.)
Databáze: MEDLINE
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