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Schüller A, Matzner D, Lünse CE, Wittmann V, Schumacher C, Unsleber S, Brötz-Oesterhelt H, Mayer C, Bierbaum G, Mayer G. Activation of the glmS Ribozyme Confers Bacterial Growth Inhibition. Chembiochem 2017; 18:435-440. [PMID: 28012261 DOI: 10.1002/cbic.201600491] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Indexed: 02/06/2023]
Abstract
The ever-growing number of pathogenic bacteria resistant to treatment with antibiotics call for the development of novel compounds with as-yet unexplored modes of action. Here, we demonstrate the in vivo antibacterial activity of carba-α-d-glucosamine (CGlcN). In this mode of action study, we provide evidence that CGlcN-mediated growth inhibition is due to glmS ribozyme activation, and we demonstrate that CGlcN hijacks an endogenous activation pathway, hence utilizing a prodrug mechanism. This is the first report describing antibacterial activity mediated by activating the self-cleaving properties of a ribozyme. Our results open the path towards a compound class with an entirely novel and distinct molecular mechanism.
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Affiliation(s)
- Anna Schüller
- University of Bonn, LIMES Institute, Gerhard-Domagk-Strasse 1, 53121, Bonn, Germany
| | - Daniel Matzner
- University of Bonn, LIMES Institute, Gerhard-Domagk-Strasse 1, 53121, Bonn, Germany
| | - Christina E Lünse
- University of Bonn, LIMES Institute, Gerhard-Domagk-Strasse 1, 53121, Bonn, Germany.,University of Leipzig, Institute for Biochemistry, Brüderstrasse 34, 04103, Leipzig, Germany
| | - Valentin Wittmann
- University of Konstanz, Chemistry Department, Universitaetsstrasse 10, 78464, Konstanz, Germany
| | - Catherine Schumacher
- University of Düsseldorf, Institute for Pharmaceutical Biology, Universitätsstrasse 1, Bld. 26.23, Room 00.44, 40225, Düsseldorf, Germany
| | - Sandra Unsleber
- University of Tübingen, Interfaculty Institute for Microbiology and Infection Medicine, Department of Microbiology & Biotechnology, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Heike Brötz-Oesterhelt
- University of Tübingen, Interfaculty Institute for Microbiology and Infection Medicine, Department of Microbial Bioactive Compounds, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Christoph Mayer
- University of Tübingen, Interfaculty Institute for Microbiology and Infection Medicine, Department of Microbiology & Biotechnology, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Gabriele Bierbaum
- University of Bonn, Institute of Medical Microbiology, Immunology and Parasitology, Sigmund-Freud-Strasse 25, 53127, Bonn, Germany
| | - Günter Mayer
- University of Bonn, LIMES Institute, Gerhard-Domagk-Strasse 1, 53121, Bonn, Germany
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A simple reverse genetics approach to elucidating the biosynthetic pathway of nocathiacin. Biotechnol Lett 2010; 33:585-91. [PMID: 21107653 DOI: 10.1007/s10529-010-0460-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Accepted: 10/22/2010] [Indexed: 10/18/2022]
Abstract
Genomic library screening and genome mining are currently employed to identify biosynthetic gene clusters of thiopeptides. To elucidate the biosynthetic pathway of nocathiacin, we present a new approach with the application of simple reverse genetics. A relationship between structural features of thiopeptides and their biosynthetic pathways is established and is a starting point for speedily elucidating biosynthetic genes of various ribosomally-synthesized bioactive peptides with diverse modifications.
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