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Eisenbraun EL, Vulpis TD, Prosser BN, Horswill AR, Blackwell HE. Synthetic Peptides Capable of Potent Multigroup Staphylococcal Quorum Sensing Activation and Inhibition in Both Cultures and Biofilm Communities. J Am Chem Soc 2024. [PMID: 38832917 DOI: 10.1021/jacs.4c02694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
The pathogen Staphylococcus epidermidis uses a chemical signaling process, i.e., quorum sensing (QS), to form robust biofilms and cause human infection. Many questions remain about QS in S. epidermidis, as it uses this intercellular communication pathway to both negatively and positively regulate virulence traits. Herein, we report synthetic multigroup agonists and antagonists of the S. epidermidis accessory gene regulator (agr) QS system capable of potent superactivation and complete inhibition, respectively. These macrocyclic peptides maintain full efficacy across the three major agr specificity groups, and their activity can be "mode-switched" from agonist to antagonist via subtle residue-specific structural changes. We describe the design and synthesis of these non-native peptides and demonstrate that they can appreciably decrease biofilm formation on abiotic surfaces, underscoring the potential for agr agonism as a route to block S. epidermidis virulence. Additionally, we show that both the S. epidermidis agonists and antagonists are active in S. aureus, another common pathogen with a related agr system, yet only as antagonists. This result not only revealed one of the most potent agr inhibitors known in S. aureus but also highlighted differences in the mechanisms of agr agonism and antagonism between these related bacteria. Finally, our investigations reveal unexpected inhibitory behavior for certain S. epidermidis agr agonists at sub-activating concentrations, an observation that can be leveraged for the design of future probes with enhanced potencies. Together, these peptides provide a powerful tool set to interrogate the role of QS in S. epidermidis infections and in Staphylococcal pathogenicity in general.
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Affiliation(s)
- Emma L Eisenbraun
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave., Madison, Wisconsin 53706, United States
| | - Troy D Vulpis
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave., Madison, Wisconsin 53706, United States
| | - Brendan N Prosser
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave., Madison, Wisconsin 53706, United States
| | - Alexander R Horswill
- Department of Immunology and Microbiology, Anschutz Medical Campus, University of Colorado, Aurora, Colorado 80045, United States
| | - Helen E Blackwell
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave., Madison, Wisconsin 53706, United States
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2
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Shi C, Liu X, Chen Y, Dai J, Li C, Felemban S, Khowdiary MM, Cui H, Lin L. Inhibitory effects of citral on the production of virulence factors in Staphylococcus aureus and its potential application in meat preservation. Int J Food Microbiol 2024; 413:110581. [PMID: 38246026 DOI: 10.1016/j.ijfoodmicro.2024.110581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 12/31/2023] [Accepted: 01/12/2024] [Indexed: 01/23/2024]
Abstract
Foodborne diseases caused by Staphylococcus aureus contamination on meat and meat products has gained increasing attention in recent years, while the pathogenicity of S. aureus is mainly attributed to its virulence factors production, which is primarily regulated by quorum sensing (QS) system. Herein, we aimed to uncover the inhibitory effects and mechanisms of citral (CIT) on virulence factors production by S. aureus, and further explore its potential application in pork preservation. Susceptibility test confirmed the antibacterial properties of CIT against S. aureus, the minimal inhibitory concentration (MIC) was 0.25 mg/mL. Treatment with sub-MICs of CIT reduced the hemolytic activity by inhibiting the production of α-hemolysin, and staphylococcal enterotoxins (SEs) production was significantly inhibited by CIT in both culture medium and pork without affecting bacterial growth. Transcriptomic analysis indicated that the differentially expression genes encoding α-hemolysin, SEs, and other virulence factors were down-regulated after treatment with 1/2MIC CIT. Moreover, the genes related to QS including agrA and agrC were also down-regulated, while the global transcriptional regulator sarA was up-regulated. Data here demonstrated that CIT could inhibited S. aureus virulence factors production through disturbing QS systems. In a challenge test, the addition of CIT caused a remarkable inhibition of S. aureus population and delay in lipid oxidation and color change on pork after 15 days incubation at 4 °C. These findings demonstrated that CIT could not only efficiently restrain the production of S. aureus virulence factors by disturbing QS, but also exhibit the potential application on the preservation of meat products.
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Affiliation(s)
- Ce Shi
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410007, China
| | - Xu Liu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yangyang Chen
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jinming Dai
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Changzhu Li
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410007, China
| | - Shifa Felemban
- Department of Chemistry, Faculty of Applied Science, Al Leith University College, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Manal M Khowdiary
- Department of Chemistry, Faculty of Applied Science, Al Leith University College, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Haiying Cui
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Lin Lin
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410007, China.
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3
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Li J, Li C, Shi C, Aliakbarlu J, Cui H, Lin L. Antibacterial mechanisms of clove essential oil against Staphylococcus aureus and its application in pork. Int J Food Microbiol 2022; 380:109864. [DOI: 10.1016/j.ijfoodmicro.2022.109864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/28/2022] [Accepted: 07/28/2022] [Indexed: 12/01/2022]
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Diversity in Sensing and Signaling of Bacterial Sensor Histidine Kinases. Biomolecules 2021; 11:biom11101524. [PMID: 34680156 PMCID: PMC8534201 DOI: 10.3390/biom11101524] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/13/2021] [Accepted: 10/13/2021] [Indexed: 11/17/2022] Open
Abstract
Two-component signal transduction systems (TCSs) are widely conserved in bacteria to respond to and adapt to the changing environment. Since TCSs are also involved in controlling the expression of virulence, biofilm formation, quorum sensing, and antimicrobial resistance in pathogens, they serve as candidates for novel drug targets. TCSs consist of a sensor histidine kinase (HK) and its cognate response regulator (RR). Upon perception of a signal, HKs autophosphorylate their conserved histidine residues, followed by phosphotransfer to their partner RRs. The phosphorylated RRs mostly function as transcriptional regulators and control the expression of genes necessary for stress response. HKs sense their specific signals not only in their extracytoplasmic sensor domain but also in their cytoplasmic and transmembrane domains. The signals are sensed either directly or indirectly via cofactors and accessory proteins. Accumulating evidence shows that a single HK can sense and respond to multiple signals in different domains. The underlying molecular mechanisms of how HK activity is controlled by these signals have been extensively studied both biochemically and structurally. In this article, we introduce the wide diversity of signal perception in different domains of HKs, together with their recently clarified structures and molecular mechanisms.
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Zhang S, Wang L, Wu L, Li Z, Yang B, Hou Y, Lei L, Cheng S, He Q. Deciphering Single-Bacterium Adhesion Behavior Modulated by Extracellular Electron Transfer. NANO LETTERS 2021; 21:5105-5115. [PMID: 34086465 DOI: 10.1021/acs.nanolett.1c01062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
For bacterial adhesion and biofilm formation, a thorough understanding of the mechanism and effective modulating is lacking due to the complex extracellular electron transfer (EET) at bacteria-surface interfaces. Here, we explore the adhesion behavior of a model electroactive bacteria under various metabolic conditions by an integrated electrochemical single-cell force microscopy system. A nonlinear model between bacterial adhesion force and electric field intensity is established, which provides a theoretical foundation for precise tuning of bacterial adhesion strength by the surface potential and the direction and flux of electron flow. In particular, based on quantitative analyses with equivalent charge distribution modeling and wormlike chain numerical simulations, it is demonstrated that the chain conformation and unfolding events of outer membrane appendages are dominantly impacted by the dynamic bacterial EET processes. This reveals how the anisotropy of bacterial conductive structure can translate into the desired adhesion behavior in different scenarios.
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Affiliation(s)
- Shuomeng Zhang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Lei Wang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Liang Wu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China
| | - Zhongjian Li
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
- Institute of Zhejiang University, Quzhou, Quzhou 32400, China
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Zhejiang University, Hangzhou 310027, China
| | - Bin Yang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
- Institute of Zhejiang University, Quzhou, Quzhou 32400, China
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Zhejiang University, Hangzhou 310027, China
| | - Yang Hou
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
- Institute of Zhejiang University, Quzhou, Quzhou 32400, China
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Zhejiang University, Hangzhou 310027, China
| | - Lecheng Lei
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
- Institute of Zhejiang University, Quzhou, Quzhou 32400, China
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Zhejiang University, Hangzhou 310027, China
| | - Shaoan Cheng
- College of Energy Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Qinggang He
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Zhejiang University, Hangzhou, Zhejiang 310027, China
- Ningbo Research Institute, Zhejiang University, Ningbo, Zhejiang 315100, China
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West KHJ, Shen W, Eisenbraun EL, Yang T, Vasquez JK, Horswill AR, Blackwell HE. Non-Native Peptides Capable of Pan-Activating the agr Quorum Sensing System across Multiple Specificity Groups of Staphylococcus epidermidis. ACS Chem Biol 2021; 16:1070-1078. [PMID: 33988969 DOI: 10.1021/acschembio.1c00240] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Staphylococcus epidermidis is a leading cause of hospital-acquired infections. Traditional antibiotics have significantly reduced efficacy against this pathogen due to its ability to form biofilms on abiotic surfaces and drug resistance. The accessory gene regulator (agr) quorum sensing system is directly involved in S. epidermidis pathogenesis. Activation of agr is achieved via binding of the autoinducing peptide (AIP) signal to the extracellular sensor domain of its cognate receptor, AgrC. Divergent evolution has given rise to four agr specificity groups in S. epidermidis defined by the unique AIP sequence used by each group (AIPs-I-IV) with observed cross-group activities. As agr agonism has been shown to reduce biofilm growth in S. epidermidis, the development of pan-group activators of the agr system is of interest as a potential antivirulence strategy. To date, no synthetic compounds have been identified that are capable of appreciably activating the agr system of more than one specificity group of S. epidermidis or, to our knowledge, of any of the other Staphylococci. Here, we report the characterization of the structure-activity relationships for agr agonism by S. epidermidis AIP-II and AIP-III and the application of these new SAR data and those previously reported for AIP-I for the design and synthesis of the first multigroup agr agonists. These non-native peptides were capable of inducing the expression of critical biofilm dispersal agents (i.e., phenol-soluble modulins) in cell culture and represent new tools to study the role of quorum sensing in S. epidermidis infections.
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Affiliation(s)
- Korbin H. J. West
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Wenqi Shen
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Emma L. Eisenbraun
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Tian Yang
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Joseph K. Vasquez
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Alexander R. Horswill
- Department of Immunology and Microbiology, Anschutz Medical Campus, University of Colorado, Aurora, Colorado 80045, United States
| | - Helen E. Blackwell
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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Tung TT, Quoc TN. Discovery of novel β-turn mimetic-based peptides as novel quorum sensing inhibitors of gram-negative bacteria. Bioorg Med Chem Lett 2021; 46:128170. [PMID: 34091042 DOI: 10.1016/j.bmcl.2021.128170] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/18/2021] [Accepted: 05/29/2021] [Indexed: 12/28/2022]
Abstract
To date, a very limited number of peptides reported as quorum sensing inhibitors. Herein, we report the synthesis and evaluation of a series of β-turn mimetic-based peptides as potent quorum sensing inhibitors and antibiofilm formation. In this series, peptides P1, P4, and P5 showed very promising anti-quorum sensing activity on lasB-gfp reporter strain of Pseudomonas aeruginosa without affecting bacterial growth. Under our condition, these compounds also showed good anti-violacein production of Chromobacterium violaceum. In terms of antibiofilm formation, except P5, two β-turn mimetic-based peptides P1 and P4 showed maximum inhibition of 80% total biomass of Pseudomonas aeruginosa. This report provides the first β-turn mimetic-based scaffold for future drug development.
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Affiliation(s)
- Truong Thanh Tung
- Faculty of Pharmacy, PHENIKAA University, Hanoi 12116, Viet Nam; PHENIKAA Institute for Advanced Study (PIAS), PHENIKAA University, Hanoi 12116, Viet Nam.
| | - Thang Nguyen Quoc
- Nuclear Medicine Unit, Vinmec International Hospital, Hanoi 10000, Viet Nam
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Molloy EM, Dell M, Hänsch VG, Dunbar KL, Feldmann R, Oberheide A, Seyfarth L, Kumpfmüller J, Horch T, Arndt H, Hertweck C. Enzyme‐Primed Native Chemical Ligation Produces Autoinducing Cyclopeptides in Clostridia. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016378] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Evelyn M. Molloy
- Dept. of Biomolecular Chemistry Leibniz Institute for Natural, Product Research and Infection Biology HKI Beutenbergstr. 11a 07745 Jena Germany
| | - Maria Dell
- Dept. of Biomolecular Chemistry Leibniz Institute for Natural, Product Research and Infection Biology HKI Beutenbergstr. 11a 07745 Jena Germany
| | - Veit G. Hänsch
- Dept. of Biomolecular Chemistry Leibniz Institute for Natural, Product Research and Infection Biology HKI Beutenbergstr. 11a 07745 Jena Germany
| | - Kyle L. Dunbar
- Dept. of Biomolecular Chemistry Leibniz Institute for Natural, Product Research and Infection Biology HKI Beutenbergstr. 11a 07745 Jena Germany
| | - Romy Feldmann
- Dept. of Biomolecular Chemistry Leibniz Institute for Natural, Product Research and Infection Biology HKI Beutenbergstr. 11a 07745 Jena Germany
| | - Ansgar Oberheide
- Institute for Organic Chemistry and Macromolecular Chemistry Friedrich Schiller University Jena Humboldtstr. 10 07743 Jena Germany
| | - Lydia Seyfarth
- Institute for Organic Chemistry and Macromolecular Chemistry Friedrich Schiller University Jena Humboldtstr. 10 07743 Jena Germany
| | - Jana Kumpfmüller
- Dept. of Biomolecular Chemistry Leibniz Institute for Natural, Product Research and Infection Biology HKI Beutenbergstr. 11a 07745 Jena Germany
| | - Therese Horch
- Dept. of Biomolecular Chemistry Leibniz Institute for Natural, Product Research and Infection Biology HKI Beutenbergstr. 11a 07745 Jena Germany
| | - Hans‐Dieter Arndt
- Institute for Organic Chemistry and Macromolecular Chemistry Friedrich Schiller University Jena Humboldtstr. 10 07743 Jena Germany
| | - Christian Hertweck
- Dept. of Biomolecular Chemistry Leibniz Institute for Natural, Product Research and Infection Biology HKI Beutenbergstr. 11a 07745 Jena Germany
- Faculty of Biological Sciences Friedrich Schiller University Jena 07743 Jena Germany
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9
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Yi L, Dong X, Grenier D, Wang K, Wang Y. Research progress of bacterial quorum sensing receptors: Classification, structure, function and characteristics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 763:143031. [PMID: 33129525 DOI: 10.1016/j.scitotenv.2020.143031] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 09/16/2020] [Accepted: 10/10/2020] [Indexed: 06/11/2023]
Abstract
The microbial community is an important part of the natural ecosystem, and the quorum sensing system is a momentous communication tool for the microbial community to connect to the surrounding environment. Quorum sensing is a process of cell-cell communication that relies on the production, release, and detection of extracellular signaling molecules, which are called autoinducers. Quorum sensing systems in bacteria consist of two main components: a receptor protein and an autoinducer. The binding of autoinducer to its receptor activates the target gene, which then performs the corresponding function in bacteria. In a natural environment, different bacterial species possess quorum sensing receptors that are structurally and functionally different. So far, many bacterial quorum sensing receptors have been identified and the structure and function of some receptors have been characterized. There are many reviews about quorum sensing and quorum sensing receptors, but there are few reviews that describe various types of quorum sensing in different environments with receptors as the core. Therefore, we summarize the well-defined quorum sensing receptors involved in intra-species and inter-species cell-cell communication, and describe the structure, function, and characteristics of typical receptors for different types of quorum sensing. A systematic understanding of quorum sensing receptors will help researchers to further explore the signaling mechanism and regulation mechanism of quorum sensing system, provide help to clarify the role and function of quorum sensing in natural ecosystems, then provide theoretical basis for the discovery or synthesis of new targeted drugs that block quorum sensing.
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Affiliation(s)
- Li Yi
- College of Life Science, Luoyang Normal University, Luoyang, China; Key Laboratory of Molecular Pathogen and Immunology of Animal of Luoyang, Luoyang, China
| | - Xiao Dong
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China; Key Laboratory of Molecular Pathogen and Immunology of Animal of Luoyang, Luoyang, China
| | - Daniel Grenier
- Groupe de Recherche en Écologie Buccale (GREB), Faculté de Médecine Dentaire, Université Laval, Quebec City, QC, Canada
| | - Kaicheng Wang
- China Animal Health and Epidemiology Center, Qingdao, China
| | - Yang Wang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China; Key Laboratory of Molecular Pathogen and Immunology of Animal of Luoyang, Luoyang, China.
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10
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Molloy EM, Dell M, Hänsch VG, Dunbar KL, Feldmann R, Oberheide A, Seyfarth L, Kumpfmüller J, Horch T, Arndt HD, Hertweck C. Enzyme-Primed Native Chemical Ligation Produces Autoinducing Cyclopeptides in Clostridia. Angew Chem Int Ed Engl 2021; 60:10670-10679. [PMID: 33625794 PMCID: PMC8251862 DOI: 10.1002/anie.202016378] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Indexed: 12/14/2022]
Abstract
Clostridia coordinate many important processes such as toxin production, infection, and survival by density‐dependent communication (quorum sensing) using autoinducing peptides (AIPs). Although clostridial AIPs have been proposed to be (thio)lactone‐containing peptides, their true structures remain elusive. Here, we report the genome‐guided discovery of an AIP that controls endospore formation in Ruminiclostridium cellulolyticum. Through a combination of chemical synthesis and chemical complementation assays with a mutant strain, we reveal that the genuine chemical mediator is a homodetic cyclopeptide (cAIP). Kinetic analyses indicate that the mature cAIP is produced via a cryptic thiolactone intermediate that undergoes a rapid S→N acyl shift, in a manner similar to intramolecular native chemical ligation (NCL). Finally, by implementing a chemical probe in a targeted screen, we show that this novel enzyme‐primed, intramolecular NCL is a widespread feature of clostridial AIP biosynthesis.
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Affiliation(s)
- Evelyn M Molloy
- Dept. of Biomolecular Chemistry, Leibniz Institute for Natural, Product Research and Infection Biology, HKI, Beutenbergstr. 11a, 07745, Jena, Germany
| | - Maria Dell
- Dept. of Biomolecular Chemistry, Leibniz Institute for Natural, Product Research and Infection Biology, HKI, Beutenbergstr. 11a, 07745, Jena, Germany
| | - Veit G Hänsch
- Dept. of Biomolecular Chemistry, Leibniz Institute for Natural, Product Research and Infection Biology, HKI, Beutenbergstr. 11a, 07745, Jena, Germany
| | - Kyle L Dunbar
- Dept. of Biomolecular Chemistry, Leibniz Institute for Natural, Product Research and Infection Biology, HKI, Beutenbergstr. 11a, 07745, Jena, Germany
| | - Romy Feldmann
- Dept. of Biomolecular Chemistry, Leibniz Institute for Natural, Product Research and Infection Biology, HKI, Beutenbergstr. 11a, 07745, Jena, Germany
| | - Ansgar Oberheide
- Institute for Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany
| | - Lydia Seyfarth
- Institute for Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany
| | - Jana Kumpfmüller
- Dept. of Biomolecular Chemistry, Leibniz Institute for Natural, Product Research and Infection Biology, HKI, Beutenbergstr. 11a, 07745, Jena, Germany
| | - Therese Horch
- Dept. of Biomolecular Chemistry, Leibniz Institute for Natural, Product Research and Infection Biology, HKI, Beutenbergstr. 11a, 07745, Jena, Germany
| | - Hans-Dieter Arndt
- Institute for Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany
| | - Christian Hertweck
- Dept. of Biomolecular Chemistry, Leibniz Institute for Natural, Product Research and Infection Biology, HKI, Beutenbergstr. 11a, 07745, Jena, Germany.,Faculty of Biological Sciences, Friedrich Schiller University Jena, 07743, Jena, Germany
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