ChemRxiv
These are preliminary reports that have not been peer-reviewed. They should not be regarded as conclusive, guide clinical practice/health-related behavior, or be reported in news media as established information. For more information, please see our FAQs.
1/1
3 files

Rearrangement of Thiodepsipeptides by S–N Acyl Shift Delivers Homodetic Autoinducing Peptides

preprint
submitted on 09.03.2021, 15:08 and posted on 10.03.2021, 10:50 by Bengt H. Gless, Benjamin Svejdal Bejder, Martin S. Bojer, Hanne Ingmer, Christian Adam Olsen
Group behavior in many bacteria relies on chemically induced communication called quorum sensing (QS), which plays important roles in regulation of colonization, biofilm formation, and virulence. In Gram-positive bacteria, QS is often mediated by cyclic ribosomally synthesized and posttranslationally modified peptides (RiPPs). In staphylococci for example, most of these so-called autoinducing peptides (AIPs) contain a conserved thiolactone functionality, which has been predicted to constitute a structural feature of AIPs from other species as well. Here, we show that pentameric AIPs from Lactobacillus plantarum, Clostridium perfringens, and Listeria monocytogenes that were previously presumed to be thiolactone-containing structures readily rearrange to become homodetic cyclopeptides. This finding has implications for the developing understanding of the cross-species communication of bacteria and may help guide the discovery of peptide ligands to perturb their function.

Funding

Independent Research Fund Denmark–Natural Sciences (0135-00427B)

LEO Foundation (LF-OC-19-000039)

History

Email Address of Submitting Author

christian.a.olsen@gmail.com

Institution

University of Copenhagen

Country

Denmark

ORCID For Submitting Author

0000-0002-2953-8942

Declaration of Conflict of Interest

The authors declare no conflict of interest.

Exports