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Illigmann A, Vielberg MT, Lakemeyer M, Wolf F, Dema T, Stange P, Kuttenlochner W, Liebhart E, Kulik A, Staudt ND, Malik I, Grond S, Sieber SA, Kaysser L, Groll M, Brötz-Oesterhelt H. Structure of Staphylococcus aureus ClpP Bound to the Covalent Active-Site Inhibitor Cystargolide A. Angew Chem Int Ed Engl 2024; 63:e202314028. [PMID: 38029352 DOI: 10.1002/anie.202314028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 12/01/2023]
Abstract
The caseinolytic protease is a highly conserved serine protease, crucial to prokaryotic and eukaryotic protein homeostasis, and a promising antibacterial and anticancer drug target. Herein, we describe the potent cystargolides as the first natural β-lactone inhibitors of the proteolytic core ClpP. Based on the discovery of two clpP genes next to the cystargolide biosynthetic gene cluster in Kitasatospora cystarginea, we explored ClpP as a potential cystargolide target. We show the inhibition of Staphylococcus aureus ClpP by cystargolide A and B by different biochemical methods in vitro. Synthesis of semisynthetic derivatives and probes with improved cell penetration allowed us to confirm ClpP as a specific target in S. aureus cells and to demonstrate the anti-virulence activity of this natural product class. Crystal structures show cystargolide A covalently bound to all 14 active sites of ClpP from S. aureus, Aquifex aeolicus, and Photorhabdus laumondii, and reveal the molecular mechanism of ClpP inhibition by β-lactones, the predominant class of ClpP inhibitors.
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Affiliation(s)
- Astrid Illigmann
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Marie-Theres Vielberg
- Chair of Biochemistry, Centre for Protein Assemblies, Technical University Munich, Ernst-Otto-Fischer-Strasse 8, 85748, Garching, Germany
| | - Markus Lakemeyer
- Chair of Organic Chemistry II, Technical University Munich, School of Natural Sciences, Center for Functional Protein Assemblies (CPA), Ernst-Otto-Fischer-Straße 8/I, 85748, Garching b.München, Germany
- Current address: Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
| | - Felix Wolf
- Synthetic Biology of Anti-infective Agents, Pharmaceutical Institute, University of Tübingen, Auf der Morgenstelle 8, 72076, Tübingen, Germany
| | - Taulant Dema
- Institute of Organic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
| | - Patrik Stange
- Institute of Organic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
| | - Wolfgang Kuttenlochner
- Chair of Biochemistry, Centre for Protein Assemblies, Technical University Munich, Ernst-Otto-Fischer-Strasse 8, 85748, Garching, Germany
| | - Elisa Liebhart
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Andreas Kulik
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Nicole D Staudt
- Synthetic Biology of Anti-infective Agents, Pharmaceutical Institute, University of Tübingen, Auf der Morgenstelle 8, 72076, Tübingen, Germany
| | - Imran Malik
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Stephanie Grond
- Institute of Organic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
| | - Stephan A Sieber
- Chair of Organic Chemistry II, Technical University Munich, School of Natural Sciences, Center for Functional Protein Assemblies (CPA), Ernst-Otto-Fischer-Straße 8/I, 85748, Garching b.München, Germany
| | - Leonard Kaysser
- Synthetic Biology of Anti-infective Agents, Pharmaceutical Institute, University of Tübingen, Auf der Morgenstelle 8, 72076, Tübingen, Germany
- Pharmazeutische Biologie, Institut für Wirkstoffentwicklung, Universitätsklinikum Leipzig, Eilenburger Strasse 15a, 04317, Leipzig, Germany
| | - Michael Groll
- Chair of Biochemistry, Centre for Protein Assemblies, Technical University Munich, Ernst-Otto-Fischer-Strasse 8, 85748, Garching, Germany
| | - Heike Brötz-Oesterhelt
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany
- Cluster of Excellence Controlling Microbes to Fight Infections, University of Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany
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Beller P, Fink P, Wolf F, Männle D, Helmle I, Kuttenlochner W, Unterfrauner D, Engelbrecht A, Staudt ND, Kulik A, Groll M, Gross H, Kaysser L. Characterization of the cystargolide biosynthetic gene cluster and functional analysis of the methyltransferase CysG. J Biol Chem 2024; 300:105507. [PMID: 38029966 PMCID: PMC10776993 DOI: 10.1016/j.jbc.2023.105507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 11/17/2023] [Accepted: 11/21/2023] [Indexed: 12/01/2023] Open
Abstract
Cystargolides are natural products originally isolated from Kitasatospora cystarginea NRRL B16505 as inhibitors of the proteasome. They are composed of a dipeptide backbone linked to a β-lactone warhead. Recently, we identified the cystargolide biosynthetic gene cluster, but systematic genetic analyses had not been carried out because of the lack of a heterologous expression system. Here, we report the discovery of a homologous cystargolide biosynthetic pathway in Streptomyces durhamensis NRRL-B3309 by genome mining. The gene cluster was cloned via transformation-associated recombination and heterologously expressed in Streptomyces coelicolor M512. We demonstrate that it contains all genes necessary for the production of cystargolide A and B. Single gene deletion experiments reveal that only five of the eight genes from the initially proposed gene cluster are essential for cystargolide synthesis. Additional insights into the cystargolide pathway could be obtained from in vitro assays with CysG and chemical complementation of the respective gene knockout. This could be further supported by the in vitro investigation of the CysG homolog BelI from the belactosin biosynthetic gene cluster. Thereby, we confirm that CysG and BelI catalyze a cryptic SAM-dependent transfer of a methyl group that is critical for the construction of the cystargolide and belactosin β-lactone warheads.
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Affiliation(s)
- Patrick Beller
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tübingen, Tübingen, Germany
| | - Phillipp Fink
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tübingen, Tübingen, Germany
| | - Felix Wolf
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tübingen, Tübingen, Germany
| | - Daniel Männle
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tübingen, Tübingen, Germany
| | - Irina Helmle
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tübingen, Tübingen, Germany
| | - Wolfgang Kuttenlochner
- Department of Bioscience, Center for Protein Assemblies (CPA), TUM School of Natural Sciences, Technical University of Munich, Garching, Germany
| | - Daniel Unterfrauner
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tübingen, Tübingen, Germany
| | - Alicia Engelbrecht
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tübingen, Tübingen, Germany
| | - Nicole D Staudt
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tübingen, Tübingen, Germany
| | - Andreas Kulik
- Interfaculty Institute for Microbiology and Infection Medicine Tübingen (IMIT), Microbial Bioactive Compounds, University of Tübingen, Tübingen, Germany
| | - Michael Groll
- Department of Bioscience, Center for Protein Assemblies (CPA), TUM School of Natural Sciences, Technical University of Munich, Garching, Germany
| | - Harald Gross
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tübingen, Tübingen, Germany
| | - Leonard Kaysser
- Department of Pharmaceutical Biology, Institute for Drug Discovery, University of Leipzig, Leipzig, Germany.
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Hennrich O, Weinmann L, Kulik A, Harms K, Klahn P, Youn JW, Surup F, Mast Y. Biotransformation-coupled mutasynthesis for the generation of novel pristinamycin derivatives by engineering the phenylglycine residue. RSC Chem Biol 2023; 4:1050-1063. [PMID: 38033732 PMCID: PMC10685826 DOI: 10.1039/d3cb00143a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 10/06/2023] [Indexed: 12/02/2023] Open
Abstract
Streptogramins are the last line of defense antimicrobials with pristinamycin as a representative substance used as therapeutics against highly resistant pathogenic bacteria. However, the emergence of (multi)drug-resistant pathogens renders these valuable antibiotics useless; making it necessary to derivatize compounds for new compound characteristics, which is often difficult by chemical de novo synthesis due to the complex nature of the molecules. An alternative to substance derivatization is mutasynthesis. Herein, we report about a mutasynthesis approach, targeting the phenylglycine (Phg) residue for substance derivatization, a pivotal component of streptogramin antibiotics. Mutasynthesis with halogenated Phg(-like) derivatives altogether led to the production of two new derivatized natural compounds, as there are 6-chloropristinamycin I and 6-fluoropristinamycin I based on LC-MS/MS analysis. 6-Chloropristinamycin I and 6-fluoropristinamycin I were isolated by preparative HPLC, structurally confirmed using NMR spectroscopy and tested for antimicrobial bioactivity. In a whole-cell biotransformation approach using an engineered E. coli BL21(DE3) pET28-hmo/pACYC-bcd-gdh strain, Phg derivatives were generated fermentatively. Supplementation with the E. coli biotransformation fermentation broth containing 4-fluorophenylglycine to the pristinamycin mutasynthesis strain resulted in the production of 6-fluoropristinamycin I, demonstrating an advanced level of mutasynthesis.
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Affiliation(s)
- Oliver Hennrich
- Department Bioresources for Bioeconomy and Health Research, Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Inhoffenstraße 7B 38124 Braunschweig Germany
| | - Leoni Weinmann
- Institute of Microbiology, University Stuttgart, Allmandring 31 D-70569 Stuttgart Germany
| | - Andreas Kulik
- Department Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, Faculty of Science, University of Tübingen, Auf der Morgenstelle 28 D-72076 Tübingen Germany
| | - Karen Harms
- Microbial Drugs Department, Helmholtz-Centre for Infection Research 38124 Braunschweig Germany
| | - Philipp Klahn
- Division of Organic and Medicinal Chemistry, Department of Chemistry and Molecular Biology, University of Gothenburg, Kemigården 4 412 96 Göteborg Sweden
- Centre of Antimicrobial Resistance Research in Gothenburg (CARe) Gothenburg Sweden
| | - Jung-Won Youn
- Institute of Microbiology, University Stuttgart, Allmandring 31 D-70569 Stuttgart Germany
| | - Frank Surup
- Microbial Drugs Department, Helmholtz-Centre for Infection Research 38124 Braunschweig Germany
| | - Yvonne Mast
- Department Bioresources for Bioeconomy and Health Research, Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Inhoffenstraße 7B 38124 Braunschweig Germany
- Technische Universität Braunschweig, Institut für Mikrobiologie, Rebenring 56 38106 Braunschweig Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen Tübingen Germany
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Goldfinger V, Spohn M, Rodler JP, Sigle M, Kulik A, Cryle MJ, Rapp J, Link H, Wohlleben W, Stegmann E. Metabolic engineering of the shikimate pathway in Amycolatopsis strains for optimized glycopeptide antibiotic production. Metab Eng 2023; 78:84-92. [PMID: 37244369 DOI: 10.1016/j.ymben.2023.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 05/17/2023] [Accepted: 05/22/2023] [Indexed: 05/29/2023]
Abstract
Glycopeptide antibiotics (GPA) consist of a glycosylated heptapeptide backbone enriched in aromatic residues originating from the shikimate pathway. Since the enzymatic reactions within the shikimate pathway are highly feedback-regulated, this raises the question as to how GPA producers control the delivery of precursors for GPA assembly. We chose Amycolatopsis balhimycina, the producer of balhimycin, as a model strain for analyzing the key enzymes of the shikimate pathway. A. balhimycina contains two copies each of the key enzymes of the shikimate pathway, deoxy-d-arabino-heptulosonate-7-phosphate synthase (Dahp) and prephenate dehydrogenase (Pdh), with one pair (Dahpsec and Pdhsec) encoded within the balhimycin biosynthetic gene cluster and one pair (Dahpprim and Pdhprim) in the core genome. While overexpression of the dahpsec gene resulted in a significant (>4-fold) increase in balhimycin yield, no positive effects were observed after overexpression of the pdhprim or pdhsec genes. Investigation of allosteric enzyme inhibition revealed that cross-regulation between the tyrosine and phenylalanine pathways plays an important role. Tyrosine, a key precursor of GPAs, was found to be a putative activator of prephenate dehydratase (Pdt), which catalyzes the first step reaction from prephenate to phenylalanine in the shikimate pathway. Surprisingly, overexpression of pdt in A. balhimycina led to an increase in antibiotic production in this modified strain. In order to demonstrate that this metabolic engineering approach is generally applicable to GPA producers, we subsequently applied this strategy to Amycolatopsis japonicum and improved the production of ristomycin A, which is used in diagnosis of genetic disorders. Comparison of "cluster-specific" enzymes with the isoenzymes from the primary metabolism's pathway provided insights into the adaptive mechanisms used by producers to ensure adequate precursor supply and GPA yields. These insights further demonstrate the importance of a holistic approach in bioengineering efforts that takes into account not only peptide assembly but also adequate precursor supply.
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Affiliation(s)
- Valentina Goldfinger
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Microbiology/Biotechnology, University of Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Marius Spohn
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Microbiology/Biotechnology, University of Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Jens-Peter Rodler
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Microbial Bioactive Compounds, University of Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Melanie Sigle
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Microbiology/Biotechnology, University of Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Andreas Kulik
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Microbiology/Biotechnology, University of Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany; Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Microbial Bioactive Compounds, University of Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Max J Cryle
- Department of Biochemistry and Molecular Biology, The Monash Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia; EMBL Australia, Monash University, Clayton, VIC, 3800, Australia; ARC Centre of Excellence for Innovations in Peptide and Protein Science, Monash University, Clayton, VIC, 3800, Australia
| | - Johanna Rapp
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Bacterial Metabolomics, University of Tübingen, Auf der Morgenstelle 25, 72076, Tübingen, Germany
| | - Hannes Link
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Bacterial Metabolomics, University of Tübingen, Auf der Morgenstelle 25, 72076, Tübingen, Germany; Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Cluster of Excellence CMFI, Bacterial Metabolomics University of Tübingen, Auf der Morgenstelle 25, 72076, Tübingen, Germany
| | - Wolfgang Wohlleben
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Microbiology/Biotechnology, University of Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany; German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Evi Stegmann
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Microbiology/Biotechnology, University of Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany; Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Microbial Bioactive Compounds, University of Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany; German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany.
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Abstract
Antibiotic natural products from microbes are characterized by diverse and mostly complex chemical structures, which challenge their total chemical synthesis and make biotechnological production to the predominant production route. In order to reach these valuable compounds in the fermentation broth, sophisticated recovery methods are required, and a high degree of purity is essential for a thorough exploration of their beneficial properties in subsequent assays. The isolation and purification of natural products from microbial cultures is mainly based on the repeated application of extraction and chromatographic separation methods.This chapter describes the general strategy of natural product recovery from microbial cultures, gives theoretical and practical insights to underlying methods-essentially compound extraction and preparative chromatography-and describes a specific methodical approach to isolate and purify the natural product fusarubin from the culture of the fungus Fusarium sp.
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Affiliation(s)
- Thomas Schafhauser
- Microbiology and Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany.
| | - Andreas Kulik
- Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
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Bär D, Konetschny B, Kulik A, Xu H, Paccagnella D, Beller P, Ziemert N, Dickschat JS, Gust B. Origin of the 3-methylglutaryl moiety in caprazamycin biosynthesis. Microb Cell Fact 2022; 21:232. [PMID: 36335365 PMCID: PMC9636800 DOI: 10.1186/s12934-022-01955-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 10/13/2022] [Indexed: 11/06/2022] Open
Abstract
Background Caprazamycins are liponucleoside antibiotics showing bioactivity against Gram-positive bacteria including clinically relevant Mycobacterium tuberculosis by targeting the bacterial MraY-translocase. Their chemical structure contains a unique 3-methylglutaryl moiety which they only share with the closely related liposidomycins. Although the biosynthesis of caprazamycin is understood to some extent, the origin of 3-methylglutaryl-CoA for caprazamycin biosynthesis remains elusive. Results In this work, we demonstrate two pathways of the heterologous producer Streptomyces coelicolor M1154 capable of supplying 3-methylglutaryl-CoA: One is encoded by the caprazamycin gene cluster itself including the 3-hydroxy-3-methylglutaryl-CoA synthase Cpz5. The second pathway is part of primary metabolism of the host cell and encodes for the leucine/isovalerate utilization pathway (Liu-pathway). We could identify the liu cluster in S. coelicolor M1154 and gene deletions showed that the intermediate 3-methylglutaconyl-CoA is used for 3-methylglutaryl-CoA biosynthesis. This is the first report of this intermediate being hijacked for secondary metabolite biosynthesis. Furthermore, Cpz20 and Cpz25 from the caprazamycin gene cluster were found to be part of a common route after both individual pathways are merged together. Conclusions The unique 3-methylglutaryl moiety in caprazamycin originates both from the caprazamycin gene cluster and the leucine/isovalerate utilization pathway of the heterologous host. Our study enhanced the knowledge on the caprazamycin biosynthesis and points out the importance of primary metabolism of the host cell for biosynthesis of natural products. Supplementary Information The online version contains supplementary material available at 10.1186/s12934-022-01955-6.
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Handel F, Kulik A, Wex KW, Berscheid A, Saur J, Winkler A, Wibberg D, Kalinowski J, Brötz-Oesterhelt H, Mast Y. Ψ-Footprinting approach for the identification of protein synthesis inhibitor producers. NAR Genom Bioinform 2022; 4:lqac055. [PMID: 35855324 PMCID: PMC9290621 DOI: 10.1093/nargab/lqac055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 06/21/2022] [Accepted: 07/06/2022] [Indexed: 11/20/2022] Open
Abstract
Today, one of the biggest challenges in antibiotic research is a targeted prioritization of natural compound producer strains and an efficient dereplication process to avoid undesired rediscovery of already known substances. Thereby, genome sequence-driven mining strategies are often superior to wet-lab experiments because they are generally faster and less resource-intensive. In the current study, we report on the development of a novel in silico screening approach to evaluate the genetic potential of bacterial strains to produce protein synthesis inhibitors (PSI), which was termed the protein synthesis inhibitor ('psi’) target gene footprinting approach = Ψ-footprinting. The strategy is based on the occurrence of protein synthesis associated self-resistance genes in genome sequences of natural compound producers. The screening approach was applied to 406 genome sequences of actinomycetes strains from the DSMZ strain collection, resulting in the prioritization of 15 potential PSI producer strains. For twelve of them, extract samples showed protein synthesis inhibitory properties in in vitro transcription/translation assays. For four strains, namely Saccharopolyspora flava DSM 44771, Micromonospora aurantiaca DSM 43813, Nocardioides albertanoniae DSM 25218, and Geodermatophilus nigrescens DSM 45408, the protein synthesis inhibitory substance amicoumacin was identified by HPLC-MS analysis, which proved the functionality of the in silico screening approach.
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Affiliation(s)
- Franziska Handel
- Department of Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Faculty of Science, University of Tübingen , Auf der Morgenstelle 28, 72076 Tübingen, Germany
- German Center for Infection Research (DZIF) , Partner Site Tübingen, Tübingen , Germany
| | - Andreas Kulik
- Department of Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Faculty of Science, University of Tübingen , Auf der Morgenstelle 28, 72076 Tübingen, Germany
- Department of Microbial Bioactive Compounds; Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen ; Tübingen , Baden-Württemberg 72076 , Germany
| | - Katharina W Wex
- Department of Microbial Bioactive Compounds; Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen ; Tübingen , Baden-Württemberg 72076 , Germany
- German Center for Infection Research (DZIF) , Partner Site Tübingen, Tübingen , Germany
| | - Anne Berscheid
- Department of Microbial Bioactive Compounds; Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen ; Tübingen , Baden-Württemberg 72076 , Germany
- German Center for Infection Research (DZIF) , Partner Site Tübingen, Tübingen , Germany
| | - Julian S Saur
- Biomolecular Chemistry, Institute of Organic Chemistry, University of Tübingen , Tübingen , Baden-Württemberg 72076 , Germany
| | - Anika Winkler
- Center for Biotechnology (CeBiTec), Bielefeld University , Universitätsstraße 27, 33615 Bielefeld , Germany
| | - Daniel Wibberg
- Center for Biotechnology (CeBiTec), Bielefeld University , Universitätsstraße 27, 33615 Bielefeld , Germany
| | - Jörn Kalinowski
- Center for Biotechnology (CeBiTec), Bielefeld University , Universitätsstraße 27, 33615 Bielefeld , Germany
| | - Heike Brötz-Oesterhelt
- Department of Microbial Bioactive Compounds; Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen ; Tübingen , Baden-Württemberg 72076 , Germany
- German Center for Infection Research (DZIF) , Partner Site Tübingen, Tübingen , Germany
- Cluster of Excellence Controlling Microbes to Fight Infection , Germany
| | - Yvonne Mast
- Department of Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Faculty of Science, University of Tübingen , Auf der Morgenstelle 28, 72076 Tübingen, Germany
- German Center for Infection Research (DZIF) , Partner Site Tübingen, Tübingen , Germany
- Department Bioresources for Bioeconomy and Health Research, Leibniz Institute DSMZ - German Collection of Microorganisms and Cell Cultures , Inhoffenstraße 7B, 38124 Braunschweig , Germany
- Technical University Braunschweig, Department of Microbiology , Rebenring 56, 38106 Braunschweig , Germany
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Gottstein J, Zaschke-Kriesche J, Unsleber S, Voitsekhovskaia I, Kulik A, Behrmann LV, Overbeck N, Stühler K, Stegmann E, Smits SHJ. New insights into the resistance mechanism for the BceAB-type transporter SaNsrFP. Sci Rep 2022; 12:4232. [PMID: 35273305 PMCID: PMC8913810 DOI: 10.1038/s41598-022-08095-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 02/23/2022] [Indexed: 11/16/2022] Open
Abstract
Treatment of bacterial infections is one of the major challenges of our time due to the evolved resistance mechanisms of pathogens against antibiotics. To circumvent this problem, it is necessary to understand the mode of action of the drug and the mechanism of resistance of the pathogen. One of the most potent antibiotic targets is peptidoglycan (PGN) biosynthesis, as this is an exclusively occurring and critical feature of bacteria. Lipid II is an essential PGN precursor synthesized in the cytosol and flipped into the outer leaflet of the membrane prior to its incorporation into nascent PGN. Antimicrobial peptides (AMPs), such as nisin and colistin, targeting PGN synthesis are considered promising weapons against multidrug-resistant bacteria. However, human pathogenic bacteria that were also resistant to these compounds evolved by the expression of an ATP-binding cassette transporter of the bacitracin efflux (BceAB) type localized in the membrane. In the human pathogen Streptococcus agalactiae, the BceAB transporter SaNsrFP is known to confer resistance to the antimicrobial peptide nisin. The exact mechanism of action for SaNsrFP is poorly understood. For a detailed characterization of the resistance mechanism, we heterologously expressed SaNsrFP in Lactococcus lactis. We demonstrated that SaNsrFP conferred resistance not only to nisin but also to a structurally diverse group of antimicrobial PGN-targeting compounds such as ramoplanin, lysobactin, or bacitracin/(Zn)-bacitracin. Growth experiments revealed that SaNsrFP-producing cells exhibited normal behavior when treated with nisin and/or bacitracin, in contrast to the nonproducing cells, for which growth was significantly reduced. We further detected the accumulation of PGN precursors in the cytoplasm after treating the cells with bacitracin. This did not appear when SaNsrFP was produced. Whole-cell proteomic protein experiments verified that the presence of SaNsrFP in L. lactis resulted in higher production of several proteins associated with cell wall modification. These included, for example, the N-acetylmuramic acid-6-phosphate etherase MurQ and UDP-glucose 4-epimerase. Analysis of components of the cell wall of SaNsrFP-producing cells implied that the transporter is involved in cell wall modification. Since we used an ATP-deficient mutant of the transporter as a comparison, we can show that SaNsrFP and its inactive mutant do not show the same phenotype, albeit expressed at similar levels, which demonstrates the ATP dependency of the mediated resistance processes. Taken together, our data agree to a target protection mechanism and imply a direct involvement of SaNsrFP in resistance by shielding the membrane-localized target of these antimicrobial peptides, resulting in modification of the cell wall.
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Affiliation(s)
- Julia Gottstein
- Institute of Biochemistry, Heinrich-Heine-University Duesseldorf, Universitaetsstrasse 1, 40225, Duesseldorf, Germany
| | - Julia Zaschke-Kriesche
- Institute of Biochemistry, Heinrich-Heine-University Duesseldorf, Universitaetsstrasse 1, 40225, Duesseldorf, Germany
| | - Sandra Unsleber
- Interfaculty Institute of Microbiology and Infection Medicin, Eberhard Karls University, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Irina Voitsekhovskaia
- Interfaculty Institute of Microbiology and Infection Medicin, Eberhard Karls University, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Andreas Kulik
- Interfaculty Institute of Microbiology and Infection Medicin, Eberhard Karls University, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Lara V Behrmann
- Institute of Biochemistry, Heinrich-Heine-University Duesseldorf, Universitaetsstrasse 1, 40225, Duesseldorf, Germany
| | - Nina Overbeck
- Molecular Proteomics Laboratory, Heinrich-Heine-University Duesseldorf, Universitaetsstrasse 1, 40225, Duesseldorf, Germany
| | - Kai Stühler
- Molecular Proteomics Laboratory, Heinrich-Heine-University Duesseldorf, Universitaetsstrasse 1, 40225, Duesseldorf, Germany
| | - Evi Stegmann
- Interfaculty Institute of Microbiology and Infection Medicin, Eberhard Karls University, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Sander H J Smits
- Institute of Biochemistry, Heinrich-Heine-University Duesseldorf, Universitaetsstrasse 1, 40225, Duesseldorf, Germany.
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9
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Engelbrecht A, Wolf F, Esch A, Kulik A, Kozhushkov SI, de Meijere A, Hughes CC, Kaysser L. Discovery of a Cryptic Nitro Intermediate in the Biosynthesis of the 3-( trans-2'-Aminocyclopropyl)alanine Moiety of Belactosin A. Org Lett 2022; 24:736-740. [PMID: 34990553 DOI: 10.1021/acs.orglett.1c04205] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Belactosin A, a β-lactone proteasome inhibitor, contains a unique 3-(trans-2'-aminocyclopropyl)alanine moiety. We recently identified the biosynthetic gene cluster of the belactosin series from Streptomyces sp. UCK14. To shed light on the formation of the aminocyclopropylalanine, we established a heterologous pathway expression, constructed a set of gene deletion mutants, and performed feeding studies for a chemical complementation that include the incorporation of stable isotope-labeled precursors. We thereby show that, in the biosynthesis of this building block, a cryptic nitrocyclopropylalanine intermediate is generated from l-lysine. The subsequent reduction of the N-oxygenated precursor to the corresponding amine is mediated by the molybdopterin-dependent enzyme BelN.
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Affiliation(s)
- Alicia Engelbrecht
- Department of Pharmaceutical Biology, University of Tübingen, 72076 Tübingen, Germany.,German Center for Infection Research, Partner Site Tübingen, 72076 Tübingen, Germany
| | - Felix Wolf
- Department of Pharmaceutical Biology, University of Tübingen, 72076 Tübingen, Germany.,German Center for Infection Research, Partner Site Tübingen, 72076 Tübingen, Germany
| | - Annika Esch
- Department of Microbial Bioactive Compounds, Interfaculty Institute for Microbiology and Infection Medicine, University of Tübingen, 72076 Tübingen, Germany.,Cluster of Excellence EXC 2124: Controlling Microbes to Fight Infection, University of Tübingen, 72076 Tübingen, Germany
| | - Andreas Kulik
- Department of Microbial Bioactive Compounds, Interfaculty Institute for Microbiology and Infection Medicine, University of Tübingen, 72076 Tübingen, Germany
| | - Sergei I Kozhushkov
- Institute for Organic and Biomolecular Chemistry, University of Göttingen, 37077 Göttingen, Germany
| | - Armin de Meijere
- Institute for Organic and Biomolecular Chemistry, University of Göttingen, 37077 Göttingen, Germany
| | - Chambers C Hughes
- German Center for Infection Research, Partner Site Tübingen, 72076 Tübingen, Germany.,Department of Microbial Bioactive Compounds, Interfaculty Institute for Microbiology and Infection Medicine, University of Tübingen, 72076 Tübingen, Germany.,Cluster of Excellence EXC 2124: Controlling Microbes to Fight Infection, University of Tübingen, 72076 Tübingen, Germany
| | - Leonard Kaysser
- Department of Pharmaceutical Biology, University of Tübingen, 72076 Tübingen, Germany.,German Center for Infection Research, Partner Site Tübingen, 72076 Tübingen, Germany.,Institute for Drug Discovery, Department of Pharmaceutical Biology, University of Leipzig, 04317 Leipzig, Germany
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10
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Shimo S, Ushimaru R, Engelbrecht A, Harada M, Miyamoto K, Kulik A, Uchiyama M, Kaysser L, Abe I. Stereodivergent Nitrocyclopropane Formation during Biosynthesis of Belactosins and Hormaomycins. J Am Chem Soc 2021; 143:18413-18418. [PMID: 34710328 DOI: 10.1021/jacs.1c10201] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Belactosins and hormaomycins are peptide natural products containing 3-(2-aminocyclopropyl)alanine and 3-(2-nitrocyclopropyl)alanine residues, respectively, with opposite stereoconfigurations of the cyclopropane ring. Herein we demonstrate that the heme oxygenase-like enzymes BelK and HrmI catalyze the N-oxygenation of l-lysine to generate 6-nitronorleucine. The nonheme iron enzymes BelL and HrmJ then cyclize the nitroalkane moiety to the nitrocyclopropane ring with the desired stereochemistry found in the corresponding natural products. We also show that both cyclopropanases remove the 4-proS-H of 6-nitronorleucine during the cyclization, establishing the inversion and retention of the configuration at C4 during the BelL and HrmJ reactions, respectively. This study reveals the unique strategy for stereocontrolled cyclopropane synthesis in nature.
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Affiliation(s)
- Shotaro Shimo
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Richiro Ushimaru
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan.,ACT-X, Japan Science and Technology Agency (JST), Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Alicia Engelbrecht
- Pharmaceutical Institute, Department of Pharmaceutical Biology, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Mei Harada
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kazunori Miyamoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Andreas Kulik
- Interfaculty Institute of Microbiology and Infection Medicine (IMIT), University of Tübingen, 72076 Tübingen, Germany
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan.,Research Initiative for Supra-Materials (RISM), Shinshu University, Ueda, 386-8567, Japan
| | - Leonard Kaysser
- Institute for Drug Discovery, Department of Pharmaceutical Biology, University of Leipzig, Eilenburger Str. 14, 04317 Leipzig, Germany
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
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11
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Ortlieb N, Klenk E, Kulik A, Niedermeyer THJ. Development of an agar-plug cultivation system for bioactivity assays of actinomycete strain collections. PLoS One 2021; 16:e0258934. [PMID: 34739482 PMCID: PMC8570476 DOI: 10.1371/journal.pone.0258934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 10/08/2021] [Indexed: 01/08/2023] Open
Abstract
Natural products are an important source of lead compounds for the development of drug substances. Actinomycetes have been valuable especially for the discovery of antibiotics. Increasing occurrence of antibiotic resistance among bacterial pathogens has revived the interest in actinomycete natural product research. Actinobacteria produce a different set of natural products when cultivated on solid growth media compared with submersed culture. Bioactivity assays involving solid media (e.g. agar-plug assays) require manual manipulation of the strains and agar plugs. This is less convenient for the screening of larger strain collections of several hundred or thousand strains. Thus, the aim of this study was to develop a 96-well microplate-based system suitable for the screening of actinomycete strain collections in agar-plug assays. We developed a medium-throughput cultivation and agar-plug assay workflow that allows the convenient inoculation of solid agar plugs with actinomycete spore suspensions from a strain collection, and the transfer of the agar plugs to petri dishes to conduct agar-plug bioactivity assays. The development steps as well as the challenges that were overcome during the development (e.g. system sterility, handling of the agar plugs) are described. We present the results from one exemplary screening campaign targeted to identify compounds inhibiting Agr-based quorum sensing where the workflow was used successfully. We present a novel and convenient workflow to combine agar diffusion assays with microtiter-plate-based cultivation systems in which strains can grow on a solid surface. This workflow facilitates and speeds up the initial medium throughput screening of natural product-producing actinomycete strain collections against monitor strains in agar-plug assays.
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Affiliation(s)
- Nico Ortlieb
- Department of Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Eberhard Karls University Tübingen, Tübingen, Germany
- German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
- Department of Pharmaceutical Biology/Pharmacognosy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Halle, Germany
| | - Elke Klenk
- Department of Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Andreas Kulik
- Department of Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Eberhard Karls University Tübingen, Tübingen, Germany
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Timo Horst Johannes Niedermeyer
- Department of Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Eberhard Karls University Tübingen, Tübingen, Germany
- German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
- Department of Pharmaceutical Biology/Pharmacognosy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Halle, Germany
- * E-mail:
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12
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Mingyar E, Mühling L, Kulik A, Winkler A, Wibberg D, Kalinowski J, Blin K, Weber T, Wohlleben W, Stegmann E. A Regulator Based "Semi-Targeted" Approach to Activate Silent Biosynthetic Gene Clusters. Int J Mol Sci 2021; 22:ijms22147567. [PMID: 34299187 PMCID: PMC8306873 DOI: 10.3390/ijms22147567] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/07/2021] [Accepted: 07/08/2021] [Indexed: 12/29/2022] Open
Abstract
By culturing microorganisms under standard laboratory conditions, most biosynthetic gene clusters (BGCs) are not expressed, and thus, the products are not produced. To explore this biosynthetic potential, we developed a novel "semi-targeted" approach focusing on activating "silent" BGCs by concurrently introducing a group of regulator genes into streptomycetes of the Tübingen strain collection. We constructed integrative plasmids containing two classes of regulatory genes under the control of the constitutive promoter ermE*p (cluster situated regulators (CSR) and Streptomyces antibiotic regulatory proteins (SARPs)). These plasmids were introduced into Streptomyces sp. TÜ17, Streptomyces sp. TÜ10 and Streptomyces sp. TÜ102. Introduction of the CSRs-plasmid into strain S. sp. TÜ17 activated the production of mayamycin A. By using the individual regulator genes, we proved that Aur1P, was responsible for the activation. In strain S. sp. TÜ102, the introduction of the SARP-plasmid triggered the production of a chartreusin-like compound. Insertion of the CSRs-plasmid into strain S. sp. TÜ10 resulted in activating the warkmycin-BGC. In both recombinants, activation of the BGCs was only possible through the simultaneous expression of aur1PR3 and griR in S. sp. TÜ102 and aur1P and pntR in of S. sp. TÜ10.
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Affiliation(s)
- Erik Mingyar
- Department of Microbiology and Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen Auf der Morgenstelle 28, 72076 Tübingen, Germany; (E.M.); (L.M.); (A.K.); (W.W.)
- German Center for Infection Research (DZIF), Partner Site Tübingen, 72076 Tübingen, Germany
| | - Lucas Mühling
- Department of Microbiology and Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen Auf der Morgenstelle 28, 72076 Tübingen, Germany; (E.M.); (L.M.); (A.K.); (W.W.)
| | - Andreas Kulik
- Department of Microbiology and Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen Auf der Morgenstelle 28, 72076 Tübingen, Germany; (E.M.); (L.M.); (A.K.); (W.W.)
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
| | - Anika Winkler
- Center for Biotechnology (CeBiTec), Universität Bielefeld, 33615 Bielefeld, Germany; (A.W.); (D.W.); (J.K.)
| | - Daniel Wibberg
- Center for Biotechnology (CeBiTec), Universität Bielefeld, 33615 Bielefeld, Germany; (A.W.); (D.W.); (J.K.)
| | - Jörn Kalinowski
- Center for Biotechnology (CeBiTec), Universität Bielefeld, 33615 Bielefeld, Germany; (A.W.); (D.W.); (J.K.)
| | - Kai Blin
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet, Building 220, 2800 Kgs. Lyngby, Denmark; (K.B.); (T.W.)
| | - Tilmann Weber
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet, Building 220, 2800 Kgs. Lyngby, Denmark; (K.B.); (T.W.)
| | - Wolfgang Wohlleben
- Department of Microbiology and Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen Auf der Morgenstelle 28, 72076 Tübingen, Germany; (E.M.); (L.M.); (A.K.); (W.W.)
- German Center for Infection Research (DZIF), Partner Site Tübingen, 72076 Tübingen, Germany
- Cluster of Excellence EXC 2124—Controlling Microbes to Fight Infections, 72076 Tübingen, Germany
| | - Evi Stegmann
- Department of Microbiology and Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen Auf der Morgenstelle 28, 72076 Tübingen, Germany; (E.M.); (L.M.); (A.K.); (W.W.)
- German Center for Infection Research (DZIF), Partner Site Tübingen, 72076 Tübingen, Germany
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
- Cluster of Excellence EXC 2124—Controlling Microbes to Fight Infections, 72076 Tübingen, Germany
- Correspondence:
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13
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Handayani I, Saad H, Ratnakomala S, Lisdiyanti P, Kusharyoto W, Krause J, Kulik A, Wohlleben W, Aziz S, Gross H, Gavriilidou A, Ziemert N, Mast Y. Mining Indonesian Microbial Biodiversity for Novel Natural Compounds by a Combined Genome Mining and Molecular Networking Approach. Mar Drugs 2021; 19:316. [PMID: 34071728 PMCID: PMC8227522 DOI: 10.3390/md19060316] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/22/2021] [Accepted: 05/25/2021] [Indexed: 11/17/2022] Open
Abstract
Indonesia is one of the most biodiverse countries in the world and a promising resource for novel natural compound producers. Actinomycetes produce about two thirds of all clinically used antibiotics. Thus, exploiting Indonesia's microbial diversity for actinomycetes may lead to the discovery of novel antibiotics. A total of 422 actinomycete strains were isolated from three different unique areas in Indonesia and tested for their antimicrobial activity. Nine potent bioactive strains were prioritized for further drug screening approaches. The nine strains were cultivated in different solid and liquid media, and a combination of genome mining analysis and mass spectrometry (MS)-based molecular networking was employed to identify potential novel compounds. By correlating secondary metabolite gene cluster data with MS-based molecular networking results, we identified several gene cluster-encoded biosynthetic products from the nine strains, including naphthyridinomycin, amicetin, echinomycin, tirandamycin, antimycin, and desferrioxamine B. Moreover, 16 putative ion clusters and numerous gene clusters were detected that could not be associated with any known compound, indicating that the strains can produce novel secondary metabolites. Our results demonstrate that sampling of actinomycetes from unique and biodiversity-rich habitats, such as Indonesia, along with a combination of gene cluster networking and molecular networking approaches, accelerates natural product identification.
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Affiliation(s)
- Ira Handayani
- Department of Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Tübingen (IMIT), Cluster of Excellence ‘Controlling Microbes to Fight Infections’, University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany; (I.H.); (J.K.); (A.K.); (W.W.)
- Research Center for Biotechnology, Indonesian Institute of Sciences (LIPI), Jl. Raya Jakarta-Bogor KM.46, Cibinong, West Java 16911, Indonesia; (P.L.); (W.K.)
| | - Hamada Saad
- Department of Pharmaceutical Biology, Institute of Pharmaceutical Sciences, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany; (H.S.); (S.A.); (H.G.)
- Department of Phytochemistry and Plant Systematics, Division of Pharmaceutical Industries, National Research Centre, Dokki, Cairo 12622, Egypt
| | - Shanti Ratnakomala
- Research Center for Biology, Indonesian Institute of Sciences (LIPI), Jl. Raya Jakarta-Bogor KM.46, Cibinong, West Java 16911, Indonesia;
| | - Puspita Lisdiyanti
- Research Center for Biotechnology, Indonesian Institute of Sciences (LIPI), Jl. Raya Jakarta-Bogor KM.46, Cibinong, West Java 16911, Indonesia; (P.L.); (W.K.)
| | - Wien Kusharyoto
- Research Center for Biotechnology, Indonesian Institute of Sciences (LIPI), Jl. Raya Jakarta-Bogor KM.46, Cibinong, West Java 16911, Indonesia; (P.L.); (W.K.)
| | - Janina Krause
- Department of Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Tübingen (IMIT), Cluster of Excellence ‘Controlling Microbes to Fight Infections’, University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany; (I.H.); (J.K.); (A.K.); (W.W.)
| | - Andreas Kulik
- Department of Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Tübingen (IMIT), Cluster of Excellence ‘Controlling Microbes to Fight Infections’, University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany; (I.H.); (J.K.); (A.K.); (W.W.)
| | - Wolfgang Wohlleben
- Department of Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Tübingen (IMIT), Cluster of Excellence ‘Controlling Microbes to Fight Infections’, University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany; (I.H.); (J.K.); (A.K.); (W.W.)
| | - Saefuddin Aziz
- Department of Pharmaceutical Biology, Institute of Pharmaceutical Sciences, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany; (H.S.); (S.A.); (H.G.)
| | - Harald Gross
- Department of Pharmaceutical Biology, Institute of Pharmaceutical Sciences, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany; (H.S.); (S.A.); (H.G.)
| | - Athina Gavriilidou
- Applied Natural Products Genome Mining, Interfaculty Institute of Microbiology and Infection Medicine Tübingen (IMIT), Cluster of Excellence ‘Controlling Microbes to Fight Infections’, University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany; (A.G.); (N.Z.)
| | - Nadine Ziemert
- Applied Natural Products Genome Mining, Interfaculty Institute of Microbiology and Infection Medicine Tübingen (IMIT), Cluster of Excellence ‘Controlling Microbes to Fight Infections’, University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany; (A.G.); (N.Z.)
- German Center for Infection Research (DZIF), Partner Site Tübingen, 72076 Tübingen, Germany
| | - Yvonne Mast
- Department of Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Tübingen (IMIT), Cluster of Excellence ‘Controlling Microbes to Fight Infections’, University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany; (I.H.); (J.K.); (A.K.); (W.W.)
- German Center for Infection Research (DZIF), Partner Site Tübingen, 72076 Tübingen, Germany
- Department of Bioresources for Bioeconomy and Health Research, Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Inhoffenstraße 7B, 38124 Braunschweig, Germany
- Department of Microbiology, Technical University of Braunschweig, 38124 Braunschweig, Germany
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14
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Wex KW, Saur JS, Handel F, Ortlieb N, Mokeev V, Kulik A, Niedermeyer THJ, Mast Y, Grond S, Berscheid A, Brötz-Oesterhelt H. Bioreporters for direct mode of action-informed screening of antibiotic producer strains. Cell Chem Biol 2021; 28:1242-1252.e4. [PMID: 33761329 DOI: 10.1016/j.chembiol.2021.02.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 01/27/2021] [Accepted: 02/23/2021] [Indexed: 01/17/2023]
Abstract
A big challenge in natural product research of today is rapid dereplication of already known substances, to free capacities for the exploration of new agents. Prompt information on bioactivities and mode of action (MOA) speeds up the lead discovery process and is required for rational compound optimization. Here, we present a bioreporter approach as a versatile strategy for combined bioactivity- and MOA-informed primary screening for antimicrobials. The approach is suitable for directly probing producer strains grown on agar, without need for initial compound enrichment or purification, and works along the entire purification pipeline with culture supernatants, extracts, fractions, and pure substances. The technology allows for MOA-informed purification to selectively prioritize activities of interest. In combination with high-resolution mass spectrometry, the biosensor panel is an efficient and sensitive tool for compound deconvolution. Concomitant information on the affected metabolic pathway enables the selection of appropriate follow-up assays to elucidate the molecular target.
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Affiliation(s)
- Katharina W Wex
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, University of Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany; German Center for Infection Research (DZIF), Partner Site Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany
| | - Julian S Saur
- Biomolecular Chemistry, Institute of Organic Chemistry, University of Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany
| | - Franziska Handel
- Department of Microbiology and Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, University of Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany; German Center for Infection Research (DZIF), Partner Site Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany
| | - Nico Ortlieb
- Department of Microbiology and Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, University of Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany; German Center for Infection Research (DZIF), Partner Site Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany
| | - Vladislav Mokeev
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, University of Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany; Cluster of Excellence EXC 2124 - Controlling Microbes to Fight Infections, Tuebingen, Baden-Württemberg 72076, Germany
| | - Andreas Kulik
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, University of Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany; Department of Microbiology and Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, University of Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany; Cluster of Excellence EXC 2124 - Controlling Microbes to Fight Infections, Tuebingen, Baden-Württemberg 72076, Germany
| | - Timo H J Niedermeyer
- Department of Microbiology and Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, University of Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany; Department of Pharmaceutical Biology/Pharmacognosy Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle, Sachsen-Anhalt 06120, Germany; German Center for Infection Research (DZIF), Partner Site Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany
| | - Yvonne Mast
- Department of Microbiology and Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, University of Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany; Department Bioresources for Bioeconomy and Health Research, Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Braunschweig, Niedersachsen 38124, Germany; German Center for Infection Research (DZIF), Partner Site Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany
| | - Stephanie Grond
- Biomolecular Chemistry, Institute of Organic Chemistry, University of Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany; Cluster of Excellence EXC 2124 - Controlling Microbes to Fight Infections, Tuebingen, Baden-Württemberg 72076, Germany
| | - Anne Berscheid
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, University of Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany; German Center for Infection Research (DZIF), Partner Site Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany
| | - Heike Brötz-Oesterhelt
- Department of Microbial Bioactive Compounds, Interfaculty Institute of Microbiology and Infection Medicine, University of Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany; German Center for Infection Research (DZIF), Partner Site Tuebingen, Tuebingen, Baden-Württemberg 72076, Germany; Cluster of Excellence EXC 2124 - Controlling Microbes to Fight Infections, Tuebingen, Baden-Württemberg 72076, Germany.
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15
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Kulik A, Lubenets I, Kulakova N, Zelenyak P, Lisnychenko L. [PEDOPHILIA AS A CAUSE OF CHILD SEXUAL ABUSE: A MEDICAL AND LEGAL PROBLEM]. Georgian Med News 2021:172-180. [PMID: 33964848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The purpose of our study is to carry out a comprehensive analysis of the phenomenon of pedophilia in the context of child protection from sexual abuse, as well as to substantiate the need for treatment of persons with sexual perversions as a way to prevent sexual violence against children. Despite the normative consolidation of the inadmissibility of violence against children, including sexual violence, and the current system of preventive measures, today minors are the most victimized group of people. Of particular concern is not only the physical harm caused to a child as a result of sexual violence, but also the negative effects on mental health, which further contributes to the emergence of various psychosomatic illnesses, depressed psycho-emotional state, mental health disorders, suicidal behavior. Analysis of domestic and foreign studies cited in the article shows that the number of criminal attacks on the sexual inviolability of the child is steadily increasing. Most of the victims of such crimes are young children, and the perpetrator is often a close relative or someone known to the child. The use of the digital environment and modern methods of communication by pedophiles in order to harass and coerce children into sexual intercourse contributes to the increase in the number of such crimes. The methodology of the study is based on the dialectical method of knowledge, legal and organizational foundations of preventive activity concerning crimes against sexual freedom and sexual inviolability of the child, interrelation and interdependence of domestic and international experience. The results of the study show that, in order to reduce the number of infringements on the sexual inviolability of the child, a set of legal and medical measures aimed at preventing real and potential threats, primarily at identifying and treating persons with sexual perversions, in particular pedophilia, is necessary. This is especially necessary during and after serving a sentence for relevant crimes.
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Affiliation(s)
- A Kulik
- 1State Research Institute of the Ministry of Internal Affairs of Ukraine
| | - I Lubenets
- 1State Research Institute of the Ministry of Internal Affairs of Ukraine
| | - N Kulakova
- 2National Academy of Internal Affairs of Ukraine
| | - P Zelenyak
- 2National Academy of Internal Affairs of Ukraine
| | - L Lisnychenko
- 1State Research Institute of the Ministry of Internal Affairs of Ukraine
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16
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Bodnarchuk S, Ivanenko D, Kohatsu-Higa A, Kulik A. Improved local approximation for multidimensional diffusions: The G-rates. Theor Probability and Math Statist 2021. [DOI: 10.1090/tpms/1109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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17
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Esser K, Kulik A, Niederacher D, Neubauer H, Kurz T, Fehm T. Targeting dysregulated cell differentiation in triple-negative breast cancer – an innovative approach using novel HDAC-inhibitors. Geburtshilfe Frauenheilkd 2020. [DOI: 10.1055/s-0040-1717844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- K Esser
- Heinrich-Heine-University of Düsseldorf, Department of Obstetrics and Gynecology, Life Science Center
| | - A Kulik
- Heinrich-Heine-University of Düsseldorf, Department of Obstetrics and Gynecology, Life Science Center
| | - D Niederacher
- Heinrich-Heine-University of Düsseldorf, Department of Obstetrics and Gynecology, Life Science Center
| | - H Neubauer
- Heinrich-Heine-University of Düsseldorf, Department of Obstetrics and Gynecology, Life Science Center
| | - T Kurz
- Heinrich-Heine-University of Düsseldorf, Institute of Pharmaceutical and Medicinal Chemistry
| | - T Fehm
- Heinrich-Heine-University of Düsseldorf, Department of Obstetrics and Gynecology, Life Science Center
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18
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Handel F, Kulik A, Mast Y. Investigation of the Autoregulator-Receptor System in the Pristinamycin Producer Streptomyces pristinaespiralis. Front Microbiol 2020; 11:580990. [PMID: 33101255 PMCID: PMC7554373 DOI: 10.3389/fmicb.2020.580990] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 09/10/2020] [Indexed: 12/19/2022] Open
Abstract
Pristinamycin biosynthesis in Streptomyces pristinaespiralis is governed by a complex hierarchical signaling cascade involving seven different transcriptional regulators (SpbR, PapR1, PapR2, PapR3, PapR4, PapR5, and PapR6). The signaling cascade is triggered by γ-butyrolactone (GBL)-like effector molecules, whereby the chemical structure of the effector, as well as its biosynthetic origin is unknown so far. Three of the pristinamycin transcriptional regulators (SpbR, PapR3, and PapR5) belong to the type of γ-butyrolactone receptor (GBLR). GBLRs are known to either act as “real” GBLRs, which bind GBLs as ligands or as “pseudo” GBLRs binding antibiotics or intermediates thereof as effector molecules. In this study, we performed electromobility shift assays (EMSAs) with SpbR, PapR3, and PapR5, respectively, in the presence of potential ligand samples. Thereby we could show that all three GBLRs bind synthetic 1,4-butyrolactone but not pristinamycin as ligand, suggesting that SpbR, PapR3, and PapR5 act as “real” GBLRs in S. pristinaespiralis. Furthermore, we identified a cytochrome P450 monooxygenase encoding gene snbU as potential biosynthesis gene for the GBLR-interacting ligand. Inactivation of snbU resulted in an increased pristinamycin production, which indicated that SnbU has a regulatory influence on pristinamycin production. EMSAs with culture extract samples from the snbU mutant did not influence the target binding ability of SpbR, PapR3, and PapR5 anymore, in contrast to culture supernatant samples from the S. pristinaespiralis wild-type or the pristinamycin deficient mutant papR2::apra, which demonstrates that SnbU is involved in the synthesis of the GBLR-interacting ligand.
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Affiliation(s)
- Franziska Handel
- Department of Microbiology/Biotechnology, Faculty of Science, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, Tübingen, Germany
| | - Andreas Kulik
- Department of Microbiology/Biotechnology, Faculty of Science, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, Tübingen, Germany
| | - Yvonne Mast
- Department of Microbiology/Biotechnology, Faculty of Science, Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, Tübingen, Germany.,German Center for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany.,Department Bioresources for Bioeconomy and Health Research, Leibniz Institute DSMZ - German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany.,Department of Microbiology, Technical University Braunschweig, Braunschweig, Germany
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19
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Kulik A, Lubenets I, Kulakova N, Naumova I. [CHILD SECURITY ON THE INTERNET AS A MEDICAL LAW PROBLEM]. Georgian Med News 2020:155-161. [PMID: 32841198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The purpose of our study is to assess the situation with safety of children when they use the Internet. A comprehensive analysis of the risks and dangers, the source of which is the World Wide Web, has been carried out. Researchers have used the survey method, which confirms the hypothesis that the problem of negative influence in the uncontrolled use of Internet technologies by children exists and is becoming more acute. The quantitative indicators of Internet users among schoolchildren are analyzed, types of crimes are identified, the victims of which can be children who use the Internet. An empirical study showed that one of the main goals of teenagers using Internet technologies is communication, which allows minors to be more free, and in some cases, makes it possible to be relaxed, liberated, frivolous, which leads to increased victimization. The article discusses the impact of virtual communication on the physical and mental health of children, the occurrence of Internet addiction, gaming disorders, attention deficit, hyperactivity disorder, depression and other diseases. In this case, special attention is paid to the characteristics of adolescence, which must be taken into account in the future when studying the safety of children on the Web. The results of our study indicate the need to continue working in the direction of studying the dangers that lurk for children on the Internet, developing measures to prevent harm to children when they use the Network, taking into account the positive foreign experience in applying such measures.
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Affiliation(s)
- A Kulik
- State Research Institute of the Ministry of Internal Affairs of Ukraine
| | - I Lubenets
- State Research Institute of the Ministry of Internal Affairs of Ukraine
| | - N Kulakova
- 2National Academy of Internal Affairs of Ukraine, Kiev, Ukraine
| | - I Naumova
- State Research Institute of the Ministry of Internal Affairs of Ukraine
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20
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Krause J, Handayani I, Blin K, Kulik A, Mast Y. Disclosing the Potential of the SARP-Type Regulator PapR2 for the Activation of Antibiotic Gene Clusters in Streptomycetes. Front Microbiol 2020; 11:225. [PMID: 32132989 PMCID: PMC7040171 DOI: 10.3389/fmicb.2020.00225] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 01/30/2020] [Indexed: 12/11/2022] Open
Abstract
Streptomyces antibiotic regulatory protein (SARP) family regulators are well-known activators of antibiotic biosynthesis in streptomycetes. The respective genes occur in various types of antibiotic gene clusters encoding, e.g., for polyketides, ribosomally and non-ribosomally synthesized peptides, or β-lactam antibiotics. We found that overexpression of the SARP-type regulator gene papR2 from Streptomyces pristinaespiralis in Streptomyces lividans leads to the activation of the silent undecylprodigiosin (Red) gene cluster. The activation happens upon the inducing function of PapR2, which takes over the regulatory role of RedD, the latter of which is the intrinsic SARP regulator of Red biosynthesis in S. lividans. Due to the broad abundance of SARP genes in different antibiotic gene clusters of various actinomycetes and the uniform activating principle of the encoded regulators, we suggest that this type of regulator is especially well suited to be used as an initiator of antibiotic biosynthesis in actinomycetes. Here, we report on a SARP-guided strategy to activate antibiotic gene clusters. As a proof of principle, we present the PapR2-driven activation of the amicetin/plicacetin gene cluster in the novel Indonesian strain isolate Streptomyces sp. SHP22-7.
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Affiliation(s)
- Janina Krause
- Department of Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Faculty of Science, University of Tübingen, Tübingen, Germany
| | - Ira Handayani
- Department of Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Faculty of Science, University of Tübingen, Tübingen, Germany
- Research Center for Biotechnology, Indonesian Institute of Sciences (LIPI), Cibinong, Indonesia
| | - Kai Blin
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Lyngby, Denmark
| | - Andreas Kulik
- Department of Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Faculty of Science, University of Tübingen, Tübingen, Germany
| | - Yvonne Mast
- Department of Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Faculty of Science, University of Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
- Department of Bioresources for Bioeconomy and Health Research, Leibniz Institute DSMZ – German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
- Department of Microbiology, Technical University Braunschweig, Braunschweig, Germany
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21
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Wiker F, Konnerth M, Helmle I, Kulik A, Kaysser L, Gross H, Gust B. Identification of Novel α-Pyrones from Conexibacter woesei Serving as Sulfate Shuttles. ACS Chem Biol 2019; 14:1972-1980. [PMID: 31419109 DOI: 10.1021/acschembio.9b00455] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Pyrones comprise a structurally diverse class of compounds. Although they are widespread in nature, their specific physiological functions remain unknown in most cases. We recently described that triketide pyrones mediate the sulfotransfer in caprazamycin biosynthesis. Herein, we report the identification of conexipyrones A-C, three previously unrecognized tetra-substituted α-pyrones, from the soil actinobacterium Conexibacter woesei. Insights into their biosynthesis via a type III polyketide synthase were obtained by feeding studies using isotope-enriched precursors. In vitro assays employing the genetically associated 3'-phosphoadenosine-5'-phosphosulfate (PAPS)-dependent sulfotransferase CwoeST revealed conexipyrones as the enzymes' genuine sulfate acceptor substrates. Furthermore, conexipyrones were determined to function as sulfate shuttles in a two-enzyme assay, because their sulfated derivatives were accepted as donor molecules by the PAPS-independent arylsulfate sulfotransferase (ASST) Cpz4 to yield sulfated caprazamycin intermediates.
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Affiliation(s)
- Franziska Wiker
- Pharmaceutical Institute, Department of Pharmaceutical Biology, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Martin Konnerth
- Organic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Irina Helmle
- Pharmaceutical Institute, Department of Pharmaceutical Biology, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Andreas Kulik
- Institute of Microbiology and Infection Medicine, Auf der Morgenstelle 28, 72076 Tübingen, Germany
| | - Leonard Kaysser
- Pharmaceutical Institute, Department of Pharmaceutical Biology, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen, 72076 Tübingen, Germany
| | - Harald Gross
- Pharmaceutical Institute, Department of Pharmaceutical Biology, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen, 72076 Tübingen, Germany
| | - Bertolt Gust
- Pharmaceutical Institute, Department of Pharmaceutical Biology, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen, 72076 Tübingen, Germany
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22
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Rosloniec E, Kulik A, Bawelski M, Mika P. Does Use Of Nordic Poles Improve Walking Distance In Patients With Intermittent Claudication? Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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23
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Rosloniec E, Kulik A, Mika P. Health-Related Quality Of Life And Walking Performance In Patients With Intermittent Claudication. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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24
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Baulig A, Helmle I, Bader M, Wolf F, Kulik A, Al-Dilaimi A, Wibberg D, Kalinowski J, Gross H, Kaysser L. Biosynthetic reconstitution of deoxysugar phosphoramidate metalloprotease inhibitors using an N-P-bond-forming kinase. Chem Sci 2019; 10:4486-4490. [PMID: 31057776 PMCID: PMC6482885 DOI: 10.1039/c9sc00641a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 03/11/2019] [Indexed: 12/24/2022] Open
Abstract
Phosphoramidon is a potent metalloprotease inhibitor and a widespread tool in cell biology research. It contains a dipeptide backbone that is uniquely linked to a 6-deoxysugar via a phosphoramidate bridge. Herein, we report the identification of a gene cluster for the formation of phosphoramidon and its detailed characterization. In vitro reconstitution of the biosynthesis established TalE as a phosphoramidate-forming kinase and TalC as the glycosyltransferase which installs the l-rhamnose moiety by phosphoester linkage.
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Affiliation(s)
- Alexandra Baulig
- Department of Pharmaceutical Biology , Pharmaceutical Institute , University of Tübingen , 72076 Tübingen , Germany . .,German Centre for Infection Research (DZIF) , partner site Tübingen , 72076 Tübingen , Germany
| | - Irina Helmle
- Department of Pharmaceutical Biology , Pharmaceutical Institute , University of Tübingen , 72076 Tübingen , Germany .
| | - Marius Bader
- Department of Pharmaceutical Biology , Pharmaceutical Institute , University of Tübingen , 72076 Tübingen , Germany . .,German Centre for Infection Research (DZIF) , partner site Tübingen , 72076 Tübingen , Germany
| | - Felix Wolf
- Department of Pharmaceutical Biology , Pharmaceutical Institute , University of Tübingen , 72076 Tübingen , Germany . .,German Centre for Infection Research (DZIF) , partner site Tübingen , 72076 Tübingen , Germany
| | - Andreas Kulik
- Interfaculty Institute for Microbiology and Infection Medicine Tübingen (IMIT) , Microbiology/Biotechnology , University of Tübingen , 72076 Tübingen , Germany
| | - Arwa Al-Dilaimi
- Center for Biotechnology (CeBiTec) , Bielefeld University , 33615 Bielefeld , Germany
| | - Daniel Wibberg
- Center for Biotechnology (CeBiTec) , Bielefeld University , 33615 Bielefeld , Germany
| | - Jörn Kalinowski
- Center for Biotechnology (CeBiTec) , Bielefeld University , 33615 Bielefeld , Germany
| | - Harald Gross
- Department of Pharmaceutical Biology , Pharmaceutical Institute , University of Tübingen , 72076 Tübingen , Germany . .,German Centre for Infection Research (DZIF) , partner site Tübingen , 72076 Tübingen , Germany
| | - Leonard Kaysser
- Department of Pharmaceutical Biology , Pharmaceutical Institute , University of Tübingen , 72076 Tübingen , Germany . .,German Centre for Infection Research (DZIF) , partner site Tübingen , 72076 Tübingen , Germany
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25
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Ortlieb N, Bretzel K, Kulik A, Haas J, Lüdeke S, Keilhofer N, Schrey SD, Gross H, Niedermeyer THJ. Xanthocidin Derivatives from the Endophytic Streptomyces sp. AcE210 Provide Insight into Xanthocidin Biosynthesis. Chembiochem 2018; 19:2472-2480. [PMID: 30300957 DOI: 10.1002/cbic.201800467] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Indexed: 11/12/2022]
Abstract
Xanthocidin and six new derivatives were isolated from the endophytic Streptomyces sp. AcE210. Their planar structures were elucidated by 1D and 2D NMR spectroscopy as well as by HRMS. The absolute configuration of one compound was determined by using vibrational circular dichroism spectroscopy (VCD). The structural similarities of xanthocidin and some of the isolated xanthocidin congeners to the methylenomycins A, B, and C suggested that the biosynthesis of these compounds might follow a similar route. Feeding studies with isotopically labelled [13 C5 ]-l-valine showed that instead of utilizing acetyl-CoA as starter unit, which has been proposed for the methylenomycin biosynthesis, Streptomyces sp. AcE210 employs an isobutyryl-CoA starter unit, resulting in a branched side chain in xanthocidin. Further evidence for a comparable biosynthesis was given by the analysis of the genome sequence of Streptomyces sp. AcE210 that revealed a cluster of homologues to the mmy genes involved in methylenomycin biosynthesis.
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Affiliation(s)
- Nico Ortlieb
- Department of Microbiology and Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Eberhard Karls University Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany.,German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany.,Department of Pharmaceutical Biology/Pharmacognosy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Hoher Weg 8, 06120, Halle (Saale), Germany
| | - Karin Bretzel
- Department of Microbiology and Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Eberhard Karls University Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Andreas Kulik
- Department of Microbiology and Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Eberhard Karls University Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Julian Haas
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-University Freiburg, Albertstrasse 25, 79104, Freiburg, Germany
| | - Steffen Lüdeke
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-University Freiburg, Albertstrasse 25, 79104, Freiburg, Germany
| | - Nadine Keilhofer
- Department of Physiological Ecology of Plants, Interfaculty Institute of Microbiology and Infection Medicine, Eberhard Karls University Tübingen, Auf der Morgenstelle 5, 72076, Tübingen, Germany
| | - Silvia Diane Schrey
- Department of Physiological Ecology of Plants, Interfaculty Institute of Microbiology and Infection Medicine, Eberhard Karls University Tübingen, Auf der Morgenstelle 5, 72076, Tübingen, Germany.,IBG-2: Plant Sciences, Forschungszentrum Jülich, 52425, Jülich, Germany
| | - Harald Gross
- German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany.,Department of Pharmaceutical Biology, Pharmaceutical Institute, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076, Tübingen, Germany
| | - Timo Horst Johannes Niedermeyer
- Department of Microbiology and Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Eberhard Karls University Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany.,German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany.,Department of Pharmaceutical Biology/Pharmacognosy, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Hoher Weg 8, 06120, Halle (Saale), Germany
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26
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Esser K, Kulik A, Klinger A, Fleischer E, Neubauer H, Niederacher D, Fehm T. Lead structure optimization of compounds identified to induce differentiation in solid tumors. Geburtshilfe Frauenheilkd 2018. [DOI: 10.1055/s-0038-1675451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Affiliation(s)
- K Esser
- Heinrich-Heine-University of Düsseldorf, Department of Obstetrics and Gynecology, Life Science Center, Düsseldorf, Deutschland
| | - A Kulik
- Heinrich-Heine-University of Düsseldorf, Department of Obstetrics and Gynecology, Life Science Center, Düsseldorf, Deutschland
| | - A Klinger
- MicroCombiChem GmbH, Wiesbaden, Deutschland
| | | | - H Neubauer
- Heinrich-Heine-University of Düsseldorf, Department of Obstetrics and Gynecology, Life Science Center, Düsseldorf, Deutschland
| | - D Niederacher
- Heinrich-Heine-University of Düsseldorf, Department of Obstetrics and Gynecology, Life Science Center, Düsseldorf, Deutschland
| | - T Fehm
- Heinrich-Heine-University of Düsseldorf, Department of Obstetrics and Gynecology, Life Science Center, Düsseldorf, Deutschland
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27
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Dabkowski M, Gruszczynska E, Lewicki A, Palucki J, Durzynska M, Szymanski M, Kulik A. Toward Focal Prostate Brachytherapy-Transperineal TRUS-mpMRI Fusion Prostate Biopsy using Brachytherapy Treatment Planning Systems Only. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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28
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Esser K, Kulik A, Neubauer H, Niederacher D, Fehm T. Identification of compounds overcoming differentiation blocks in solid tumors utilizing a novel cell-based screening system. Geburtshilfe Frauenheilkd 2018. [DOI: 10.1055/s-0038-1671014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Affiliation(s)
- K Esser
- Universitätsklinikum Düsseldorf, Klinik für Frauenheilkunde und Geburtshilfe, Düsseldorf, Deutschland
| | - A Kulik
- Universitätsklinikum Düsseldorf, Klinik für Frauenheilkunde und Geburtshilfe, Düsseldorf, Deutschland
| | - H Neubauer
- Universitätsklinikum Düsseldorf, Klinik für Frauenheilkunde und Geburtshilfe, Düsseldorf, Deutschland
| | - D Niederacher
- Universitätsklinikum Düsseldorf, Klinik für Frauenheilkunde und Geburtshilfe, Düsseldorf, Deutschland
| | - T Fehm
- Universitätsklinikum Düsseldorf, Klinik für Frauenheilkunde und Geburtshilfe, Düsseldorf, Deutschland
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29
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Kulik A, Rosloniec E. Changes in claudication walking time measured on treadmill and in community setting outdoor walking after A 12-week supervised treadmill training in patients with claudication. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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30
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Schäfer R, Strnad V, Polgár C, Uter W, Hildebrandt G, Ott O, Kauer-Dorner D, Knauerhase H, Major T, Lyczek J, Guinot J, Dunst J, Gutierrez Miguelez C, Slampa P, Allgäuer M, Lössl K, Kovacs G, Fietkau R, Resch A, Kulik A, Arribas L, Niehoff P, Guedea F, Gall C, Polat B. OC-0326: QOL After APBI (Multicatheter Brachytherapy) Versus WBI: 5-Year Results, Phase 3 GEC-ESTRO Trial. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30636-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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31
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Dabkowski M, Gruszczynska E, Lewicki A, Palucki J, Durzynska M, Kulik A, Szymanski M, Rogowski W, Kasprowicz A. PO-1024: Transperineal TRUS-mpMRI fusion prostate biopsy using brachytherapy treatment planning systems ONLY. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31334-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Wolf F, Leipoldt F, Kulik A, Wibberg D, Kalinowski J, Kaysser L. Characterization of the Actinonin Biosynthetic Gene Cluster. Chembiochem 2018; 19:1189-1195. [PMID: 29600569 DOI: 10.1002/cbic.201800116] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Indexed: 11/05/2022]
Abstract
The hydroxamate moiety of the natural product actinonin mediates inhibition of metalloproteinases because of its chelating properties towards divalent cations in the active site of those enzymes. Owing to its antimicrobial activity, actinonin has served as a lead compound for the development of new antibiotic drug candidates. Recently, we identified a putative gene cluster for the biosynthesis of actinonin. Here, we confirm and characterize this cluster by heterologous pathway expression and gene-deletion experiments. We assigned the biosynthetic gene cluster to actinonin production and determine the cluster boundaries. Furthermore, we establish that ActI, an AurF-like oxygenase, is responsible for the N-hydroxylation reaction that forms the hydroxamate warhead. Our findings provide the basis for more detailed investigations of actinonin biosynthesis.
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Affiliation(s)
- Felix Wolf
- Department of Pharmaceutical Biology, University of Tübingen, Auf der Morgenstelle 8, 72076, Tübingen, Germany
- German Centre for Infection Research (DZIF), Partner site Tübingen
| | - Franziska Leipoldt
- Department of Pharmaceutical Biology, University of Tübingen, Auf der Morgenstelle 8, 72076, Tübingen, Germany
- German Centre for Infection Research (DZIF), Partner site Tübingen
| | - Andreas Kulik
- Interfaculty Institute for Microbiology and Infection Medicine Tübingen (IMIT), Microbiology/Biotechnology, University of Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Daniel Wibberg
- Center for Biotechnology (CeBiTec), Bielefeld University, Universitätsstrasse 27, 33594, Bielefeld, Germany
| | - Jörn Kalinowski
- Center for Biotechnology (CeBiTec), Bielefeld University, Universitätsstrasse 27, 33594, Bielefeld, Germany
| | - Leonard Kaysser
- Department of Pharmaceutical Biology, University of Tübingen, Auf der Morgenstelle 8, 72076, Tübingen, Germany
- German Centre for Infection Research (DZIF), Partner site Tübingen
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33
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Uhl I, Kulik A, Roser P, Theodoridou A, Wyss C, Norra C, Brüne M, Kawohl W, Juckel G. Central serotonergic function in patients with predominantly negative symptoms of schizophrenia. Schizophr Res 2018. [PMID: 28641887 DOI: 10.1016/j.schres.2017.05.041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- I Uhl
- Department of Psychiatry, Ruhr University, LWL University Hospital Bochum, Germany
| | - A Kulik
- Department of Psychiatry, Ruhr University, LWL University Hospital Bochum, Germany
| | - P Roser
- Department of Psychiatry, Ruhr University, LWL University Hospital Bochum, Germany
| | - A Theodoridou
- Psychiatric University Hospital, Zürich, Switzerland
| | - C Wyss
- Psychiatric University Hospital, Zürich, Switzerland
| | - C Norra
- Department of Psychiatry, Ruhr University, LWL University Hospital Bochum, Germany
| | - M Brüne
- Department of Psychiatry, Ruhr University, LWL University Hospital Bochum, Germany
| | - W Kawohl
- Psychiatric University Hospital, Zürich, Switzerland
| | - G Juckel
- Department of Psychiatry, Ruhr University, LWL University Hospital Bochum, Germany.
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34
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Keilhofer N, Nachtigall J, Kulik A, Ecke M, Hampp R, Süssmuth RD, Fiedler HP, Schrey SD. Streptomyces AcH 505 triggers production of a salicylic acid analogue in the fungal pathogen Heterobasidion abietinum that enhances infection of Norway spruce seedlings. Antonie Van Leeuwenhoek 2018; 111:691-704. [DOI: 10.1007/s10482-018-1017-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 01/11/2018] [Indexed: 03/19/2023]
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35
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Schwarz PN, Roller L, Kulik A, Wohlleben W, Stegmann E. Engineering metabolic pathways in Amycolatopsis japonicum for the optimization of the precursor supply for heterologous brasilicardin congeners production. Synth Syst Biotechnol 2018; 3:56-63. [PMID: 29911199 PMCID: PMC5884276 DOI: 10.1016/j.synbio.2017.12.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 11/06/2017] [Accepted: 12/22/2017] [Indexed: 02/08/2023] Open
Abstract
The isoprenoid brasilicardin A is a promising immunosuppressant compound with a unique mode of action, high potency and reduced toxicity compared to today's standard drugs. However, production of brasilicardin has been hampered since the producer strain Nocardia terpenica IFM0406 synthesizes brasilicardin in only low amounts and is a biosafety level 2 organism. Previously, we were able to heterologously express the brasilicardin gene cluster in the nocardioform actinomycete Amycolatopsis japonicum. Four brasilicardin congeners, intermediates of the BraA biosynthesis, were produced. Since chemical synthesis of the brasilicardin core structure has remained elusive we intended to produce high amounts of the brasilicardin backbone for semi synthesis and derivatization. Therefore, we used a metabolic engineering approach to increase heterologous production of brasilicardin in A. japonicum. Simultaneous heterologous expression of genes encoding the MVA pathway and expression of diterpenoid specific prenyltransferases were used to increase the provision of the isoprenoid precursor isopentenyl diphosphate (IPP) and to channel the precursor into the direction of diterpenoid biosynthesis. Both approaches contributed to an elevated heterologous production of the brasilicardin backbone, which can now be used as a starting point for semi synthesis of new brasilicardin congeners with better properties.
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Key Words
- 3HBA, 3-hydroxy-benzoate
- Aact, acetoacetyl CoA thiolase
- BraA, brasilicardin A
- BraB, brasilicardin B
- BraC, brasilicardin C
- BraC-agl, brasilicardin C aglycon
- BraD, brasilicardin D
- BraD-agl, brasilicardin D aglycon
- DMAPP, dimethylallyl diphosphate
- FPP, farnesyl diphosphate
- Fpps, farnesyl diphosphate synthase
- GGPP, geranylgeranyl diphosphate
- GPP, geranyl diphosphate
- Ggpps, geranylgeranyl diphosphate synthase
- GlcNAc, N-acetylglucosamine
- Gpps, geranyl diphosphate synthase
- IPP, isopentenyl diphosphate
- Idi, isopentenyl diphosphate synthase
- Isoprenoids
- MEP, Methylerythritol 4-phosphate
- MVA, mevalonate
- Mevalonate pathway
- Norcardia terpenica IFM0406
- Prenyltransferases
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Affiliation(s)
- Paul N Schwarz
- Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine Tübingen (IMIT), Eberhard Karls University Tübingen, Tübingen, Germany
| | - Luisa Roller
- Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine Tübingen (IMIT), Eberhard Karls University Tübingen, Tübingen, Germany
| | - Andreas Kulik
- Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine Tübingen (IMIT), Eberhard Karls University Tübingen, Tübingen, Germany
| | - Wolfgang Wohlleben
- Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine Tübingen (IMIT), Eberhard Karls University Tübingen, Tübingen, Germany.,German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Evi Stegmann
- Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine Tübingen (IMIT), Eberhard Karls University Tübingen, Tübingen, Germany.,German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
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Schwarz PN, Buchmann A, Roller L, Kulik A, Gross H, Wohlleben W, Stegmann E. The Immunosuppressant Brasilicardin: Determination of the Biosynthetic Gene Cluster in the Heterologous HostAmycolatopsis japonicum. Biotechnol J 2017; 13. [DOI: 10.1002/biot.201700527] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 10/05/2017] [Indexed: 12/28/2022]
Affiliation(s)
- Paul N. Schwarz
- Microbiology/Biotechnology; Interfaculty Institute of Microbiology and Infection Medicine (IMIT); Eberhard Karls University of Tübingen; Tübingen Germany
| | - Anina Buchmann
- Department of Pharmaceutical Biology; Pharmaceutical Institute; Eberhard Karls University of Tübingen; Tübingen Germany
| | - Luisa Roller
- Microbiology/Biotechnology; Interfaculty Institute of Microbiology and Infection Medicine (IMIT); Eberhard Karls University of Tübingen; Tübingen Germany
| | - Andreas Kulik
- Microbiology/Biotechnology; Interfaculty Institute of Microbiology and Infection Medicine (IMIT); Eberhard Karls University of Tübingen; Tübingen Germany
| | - Harald Gross
- Department of Pharmaceutical Biology; Pharmaceutical Institute; Eberhard Karls University of Tübingen; Tübingen Germany
- German Centre for Infection Research (DZIF); Partner Site Tübingen; Tübingen Germany
| | - Wolfgang Wohlleben
- Microbiology/Biotechnology; Interfaculty Institute of Microbiology and Infection Medicine (IMIT); Eberhard Karls University of Tübingen; Tübingen Germany
- German Centre for Infection Research (DZIF); Partner Site Tübingen; Tübingen Germany
| | - Evi Stegmann
- Microbiology/Biotechnology; Interfaculty Institute of Microbiology and Infection Medicine (IMIT); Eberhard Karls University of Tübingen; Tübingen Germany
- German Centre for Infection Research (DZIF); Partner Site Tübingen; Tübingen Germany
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37
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Jahn L, Schafhauser T, Wibberg D, Rückert C, Winkler A, Kulik A, Weber T, Flor L, van Pée KH, Kalinowski J, Ludwig-Müller J, Wohlleben W. Linking secondary metabolites to biosynthesis genes in the fungal endophyte Cyanodermella asteris: The anti-cancer bisanthraquinone skyrin. J Biotechnol 2017. [PMID: 28647529 DOI: 10.1016/j.jbiotec.2017.06.410] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Fungal aromatic polyketides display a very diverse and widespread group of natural products. Due to their excellent light absorption properties and widely studied biological activities, they offer numerous application for food, textile and pharmaceutical industry. The biosynthetic pathways of fungal aromatic polyketides usually involve a set of successive enzymes, in which a non-reductive polyketide synthase iteratively catalyzes the essential assembly of simple building blocks into (often polycyclic) aromatic compounds. However, only a limited number of such pathways have been described so far and further elucidation of the individual biosynthetic steps is needed to fully exploit the biotechnological and medicinal potential of these compounds. Here, we identified the bisanthraquinone skyrin as the main pigment of the fungus Cyanodermella asteris, an endophyte that has recently been isolated from the traditional Chinese medicinal plant Aster tataricus. The genome of C. asteris was sequenced, assembled and annotated, which enables first insights into a genome from a non-lichenized member of the class Lecanoromycetes. Genetic and in silico analyses led to the identification of a gene cluster of five genes suggested to encode the enzymatic pathway for skyrin. Our study is a starting point for rational pathway engineering in order to drive the production towards higher yields or more active derivatives. Moreover, our investigations revealed a large potential of secondary metabolite production in C. asteris as well as in all Lecanoromycetes of which genomes were available. These findings convincingly emphasize that Lecanoromycetes are prolific producers of secondary metabolites.
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Affiliation(s)
- Linda Jahn
- Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany
| | - Thomas Schafhauser
- Mikrobiologie und Biotechnologie, Interfakultäres Institut für Mikrobiologie und Infektionsmedizin, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany.
| | - Daniel Wibberg
- Centrum für Biotechnologie, CeBiTec, Universität Bielefeld, Universitätsstr. 27, 33615 Bielefeld, Germany
| | - Christian Rückert
- Centrum für Biotechnologie, CeBiTec, Universität Bielefeld, Universitätsstr. 27, 33615 Bielefeld, Germany
| | - Anika Winkler
- Centrum für Biotechnologie, CeBiTec, Universität Bielefeld, Universitätsstr. 27, 33615 Bielefeld, Germany
| | - Andreas Kulik
- Mikrobiologie und Biotechnologie, Interfakultäres Institut für Mikrobiologie und Infektionsmedizin, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
| | - Tilmann Weber
- Mikrobiologie und Biotechnologie, Interfakultäres Institut für Mikrobiologie und Infektionsmedizin, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany; The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet Bygning 220, 2800 Kgs. Lyngby, Denmark; German Centre for Infection Research (DZIF), Partner site Tübingen, IMIT, Auf der Morgenstelle 28, 72076 Tübingen, Germany
| | - Liane Flor
- Allgemeine Biochemie, Technische Universität Dresden, 01062 Dresden, Germany
| | - Karl-Heinz van Pée
- Allgemeine Biochemie, Technische Universität Dresden, 01062 Dresden, Germany
| | - Jörn Kalinowski
- Centrum für Biotechnologie, CeBiTec, Universität Bielefeld, Universitätsstr. 27, 33615 Bielefeld, Germany
| | - Jutta Ludwig-Müller
- Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany.
| | - Wolfgang Wohlleben
- Mikrobiologie und Biotechnologie, Interfakultäres Institut für Mikrobiologie und Infektionsmedizin, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany; German Centre for Infection Research (DZIF), Partner site Tübingen, IMIT, Auf der Morgenstelle 28, 72076 Tübingen, Germany
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38
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Basitta P, Westrich L, Rösch M, Kulik A, Gust B, Apel AK. AGOS: A Plug-and-Play Method for the Assembly of Artificial Gene Operons into Functional Biosynthetic Gene Clusters. ACS Synth Biol 2017; 6:817-825. [PMID: 28182401 DOI: 10.1021/acssynbio.6b00319] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The generation of novel secondary metabolites by reengineering or refactoring biochemical pathways is a rewarding but also challenging goal of synthetic biology. For this, the development of tools for the reconstruction of secondary metabolite gene clusters as well as the challenge of understanding the obstacles in this process is of great interest. The artificial gene operon assembly system (AGOS) is a plug-and-play method developed as a tool to consecutively assemble artificial gene operons into a destination vector and subsequently express them under the control of a de-repressed promoter in a Streptomyces host strain. AGOS was designed as a set of entry plasmids for the construction of artificial gene operons and a SuperCos1 based destination vector, into which the constructed operons can be assembled by Red/ET-mediated recombination. To provide a proof-of-concept of this method, we disassembled the well-known novobiocin biosynthetic gene cluster into four gene operons, encoding for the different moieties of novobiocin. We then genetically reorganized these gene operons with the help of AGOS to finally obtain the complete novobiocin gene cluster again. The production of novobiocin precursors and of novobiocin could successfully be detected by LC-MS and LC-MS/MS. Furthermore, we demonstrated that the omission of terminator sequences only had a minor impact on product formation in our system.
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Affiliation(s)
- Patrick Basitta
- Pharmaceutical
Biology, Pharmaceutical Institute, University of Tübingen, Auf
der Morgenstelle 8, Tübingen, 72076, Germany
| | - Lucia Westrich
- Pharmaceutical
Biology, Pharmaceutical Institute, University of Tübingen, Auf
der Morgenstelle 8, Tübingen, 72076, Germany
| | - Manuela Rösch
- Pharmaceutical
Biology, Pharmaceutical Institute, University of Tübingen, Auf
der Morgenstelle 8, Tübingen, 72076, Germany
| | | | - Bertolt Gust
- Pharmaceutical
Biology, Pharmaceutical Institute, University of Tübingen, Auf
der Morgenstelle 8, Tübingen, 72076, Germany
| | - Alexander Kristian Apel
- Pharmaceutical
Biology, Pharmaceutical Institute, University of Tübingen, Auf
der Morgenstelle 8, Tübingen, 72076, Germany
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39
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Wolf F, Bauer JS, Bendel TM, Kulik A, Kalinowski J, Gross H, Kaysser L. Die Biosynthese der β-Lacton-haltigen Proteasominhibitoren Belactosin und Cystargolid. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612076] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Felix Wolf
- Abteilung Pharmazeutische Biologie; Pharmazeutisches Institut; Universität Tübingen; 72076 Tübingen Deutschland
- Deutsches Zentrum für Infektionsforschung (DZIF); Standort Tübingen; 72076 Tübingen Deutschland
| | - Judith S. Bauer
- Abteilung Pharmazeutische Biologie; Pharmazeutisches Institut; Universität Tübingen; 72076 Tübingen Deutschland
- Deutsches Zentrum für Infektionsforschung (DZIF); Standort Tübingen; 72076 Tübingen Deutschland
| | - Theresa M. Bendel
- Abteilung Pharmazeutische Biologie; Pharmazeutisches Institut; Universität Tübingen; 72076 Tübingen Deutschland
- Deutsches Zentrum für Infektionsforschung (DZIF); Standort Tübingen; 72076 Tübingen Deutschland
| | - Andreas Kulik
- Interfaculty Institute for Microbiology and Infection Medicine, Tübingen (IMIT); Mikrobiologie/Biotechnologie; Universität Tübingen; 72076 Tübingen Deutschland
| | - Jörn Kalinowski
- Center for Biotechnology (CeBiTec); Universität Bielefeld; 33615 Bielefeld Deutschland
| | - Harald Gross
- Abteilung Pharmazeutische Biologie; Pharmazeutisches Institut; Universität Tübingen; 72076 Tübingen Deutschland
- Deutsches Zentrum für Infektionsforschung (DZIF); Standort Tübingen; 72076 Tübingen Deutschland
| | - Leonard Kaysser
- Abteilung Pharmazeutische Biologie; Pharmazeutisches Institut; Universität Tübingen; 72076 Tübingen Deutschland
- Deutsches Zentrum für Infektionsforschung (DZIF); Standort Tübingen; 72076 Tübingen Deutschland
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40
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Wolf F, Bauer JS, Bendel TM, Kulik A, Kalinowski J, Gross H, Kaysser L. Biosynthesis of the β-Lactone Proteasome Inhibitors Belactosin and Cystargolide. Angew Chem Int Ed Engl 2017; 56:6665-6668. [PMID: 28452105 DOI: 10.1002/anie.201612076] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Indexed: 01/06/2023]
Abstract
Belactosins and cystargolides are natural product proteasome inhibitors from Actinobacteria. Both feature dipeptidic backbones and a unique β-lactone building block. Herein, we present a detailed investigation of their biosynthesis. Identification and analysis of the corresponding gene clusters indicated that both compounds are assembled by rare single-enzyme amino acid ligases. Feeding experiments with isotope-labeled precursors and in vitro biochemistry showed that the formation of the β-lactone warhead is unprecedented and reminiscent of leucine biosynthesis, and that it involves the action of isopropylmalate synthase homologues.
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Affiliation(s)
- Felix Wolf
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tuebingen, 72076, Tuebingen, Germany.,German Centre for Infection Research (DZIF), partner site Tuebingen, 72076, Tuebingen, Germany
| | - Judith S Bauer
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tuebingen, 72076, Tuebingen, Germany.,German Centre for Infection Research (DZIF), partner site Tuebingen, 72076, Tuebingen, Germany
| | - Theresa M Bendel
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tuebingen, 72076, Tuebingen, Germany.,German Centre for Infection Research (DZIF), partner site Tuebingen, 72076, Tuebingen, Germany
| | - Andreas Kulik
- Interfaculty Institute for Microbiology and Infection Medicine Tuebingen (IMIT), Microbiology/Biotechnology, University of Tuebingen, 72076, Tuebingen, Germany
| | - Jörn Kalinowski
- Center for Biotechnology (CeBiTec), University of Bielefeld, 33615, Bielefeld, Germany
| | - Harald Gross
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tuebingen, 72076, Tuebingen, Germany.,German Centre for Infection Research (DZIF), partner site Tuebingen, 72076, Tuebingen, Germany
| | - Leonard Kaysser
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tuebingen, 72076, Tuebingen, Germany.,German Centre for Infection Research (DZIF), partner site Tuebingen, 72076, Tuebingen, Germany
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41
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Krysenko S, Okoniewski N, Kulik A, Matthews A, Grimpo J, Wohlleben W, Bera A. Gamma-Glutamylpolyamine Synthetase GlnA3 Is Involved in the First Step of Polyamine Degradation Pathway in Streptomyces coelicolor M145. Front Microbiol 2017; 8:726. [PMID: 28487688 PMCID: PMC5403932 DOI: 10.3389/fmicb.2017.00726] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 04/07/2017] [Indexed: 12/26/2022] Open
Abstract
Streptomyces coelicolor M145 was shown to be able to grow in the presence of high concentrations of polyamines, such as putrescine, cadaverine, spermidine, or spermine, as a sole nitrogen source. However, hardly anything is known about polyamine utilization and its regulation in streptomycetes. In this study, we demonstrated that only one of the three proteins annotated as glutamine synthetase-like protein, GlnA3 (SCO6962), was involved in the catabolism of polyamines. Transcriptional analysis revealed that the expression of glnA3 was strongly induced by exogenous polyamines and repressed in the presence of ammonium. The ΔglnA3 mutant was shown to be unable to grow on defined Evans agar supplemented with putrescine, cadaverine, spermidine, and spermine as sole nitrogen source. HPLC analysis demonstrated that the ΔglnA3 mutant accumulated polyamines intracellularly, but was unable to degrade them. In a rich complex medium supplemented with a mixture of the four different polyamines, the ΔglnA3 mutant grew poorly showing abnormal mycelium morphology and decreased life span in comparison to the parental strain. These observations indicated that the accumulation of polyamines was toxic for the cell. An in silico analysis of the GlnA3 protein model suggested that it might act as a gamma-glutamylpolyamine synthetase catalyzing the first step of polyamine degradation. GlnA3-catalyzed glutamylation of putrescine was confirmed in an enzymatic in vitro assay and the GlnA3 reaction product, gamma-glutamylputrescine, was detected by HPLC/ESI-MS. In this work, the first step of polyamine utilization in S. coelicolor has been elucidated and the putative polyamine utilization pathway has been deduced based on the sequence similarity and transcriptional analysis of homologous genes expressed in the presence of polyamines.
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Affiliation(s)
- Sergii Krysenko
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Department of Microbiology and Biotechnology, University of TübingenTübingen, Germany
| | - Nicole Okoniewski
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Department of Microbiology and Biotechnology, University of TübingenTübingen, Germany
| | - Andreas Kulik
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Department of Microbiology and Biotechnology, University of TübingenTübingen, Germany
| | - Arne Matthews
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Department of Microbiology and Biotechnology, University of TübingenTübingen, Germany
| | - Jan Grimpo
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Department of Microbiology and Biotechnology, University of TübingenTübingen, Germany
| | - Wolfgang Wohlleben
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Department of Microbiology and Biotechnology, University of TübingenTübingen, Germany
| | - Agnieszka Bera
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Department of Microbiology and Biotechnology, University of TübingenTübingen, Germany
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42
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Musiol-Kroll EM, Zubeil F, Schafhauser T, Härtner T, Kulik A, McArthur J, Koryakina I, Wohlleben W, Grond S, Williams GJ, Lee SY, Weber T. Polyketide Bioderivatization Using the Promiscuous Acyltransferase KirCII. ACS Synth Biol 2017; 6:421-427. [PMID: 28206741 DOI: 10.1021/acssynbio.6b00341] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
During polyketide biosynthesis, acyltransferases (ATs) are the essential gatekeepers which provide the assembly lines with precursors and thus contribute greatly to structural diversity. Previously, we demonstrated that the discrete AT KirCII from the kirromycin antibiotic pathway accesses nonmalonate extender units. Here, we exploit the promiscuity of KirCII to generate new kirromycins with allyl- and propargyl-side chains in vivo, the latter were utilized as educts for further modification by "click" chemistry.
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Affiliation(s)
- Ewa M. Musiol-Kroll
- Novo
Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet Building B220, 2800 Kgs. Lyngby, Denmark
- German Centre
for Infection Research (DZIF), Partner site Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
- Interfakultäres
Institut für Mikrobiologie und Infektionsmedizin, Mikrobiologie/Biotechnologie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
| | - Florian Zubeil
- Institut
für Organische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Thomas Schafhauser
- Interfakultäres
Institut für Mikrobiologie und Infektionsmedizin, Mikrobiologie/Biotechnologie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
| | - Thomas Härtner
- Interfakultäres
Institut für Mikrobiologie und Infektionsmedizin, Mikrobiologie/Biotechnologie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
| | - Andreas Kulik
- Interfakultäres
Institut für Mikrobiologie und Infektionsmedizin, Mikrobiologie/Biotechnologie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
| | - John McArthur
- North Carolina State University, Department of
Chemistry, Raleigh, North Carolina 27695-8204, United States
| | - Irina Koryakina
- North Carolina State University, Department of
Chemistry, Raleigh, North Carolina 27695-8204, United States
| | - Wolfgang Wohlleben
- German Centre
for Infection Research (DZIF), Partner site Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
- Interfakultäres
Institut für Mikrobiologie und Infektionsmedizin, Mikrobiologie/Biotechnologie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
| | - Stephanie Grond
- Institut
für Organische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Gavin J. Williams
- North Carolina State University, Department of
Chemistry, Raleigh, North Carolina 27695-8204, United States
| | - Sang Yup Lee
- Novo
Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet Building B220, 2800 Kgs. Lyngby, Denmark
- Department
of Chemical and Biomolecular Engineering (BK21 Plus Program), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Tilmann Weber
- Novo
Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet Building B220, 2800 Kgs. Lyngby, Denmark
- German Centre
for Infection Research (DZIF), Partner site Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
- Interfakultäres
Institut für Mikrobiologie und Infektionsmedizin, Mikrobiologie/Biotechnologie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
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Sarmiento-Vizcaíno A, González V, Braña AF, Palacios JJ, Otero L, Fernández J, Molina A, Kulik A, Vázquez F, Acuña JL, García LA, Blanco G. Pharmacological Potential of Phylogenetically Diverse Actinobacteria Isolated from Deep-Sea Coral Ecosystems of the Submarine Avilés Canyon in the Cantabrian Sea. Microb Ecol 2017; 73:338-352. [PMID: 27614749 DOI: 10.1007/s00248-016-0845-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Accepted: 08/24/2016] [Indexed: 06/06/2023]
Abstract
Marine Actinobacteria are emerging as an unexplored source for natural product discovery. Eighty-seven deep-sea coral reef invertebrates were collected during an oceanographic expedition at the submarine Avilés Canyon (Asturias, Spain) in a range of 1500 to 4700 m depth. From these, 18 cultivable bioactive Actinobacteria were isolated, mainly from corals, phylum Cnidaria, and some specimens of phyla Echinodermata, Porifera, Annelida, Arthropoda, Mollusca and Sipuncula. As determined by 16S rRNA sequencing and phylogenetic analyses, all isolates belong to the phylum Actinobacteria, mainly to the Streptomyces genus and also to Micromonospora, Pseudonocardia and Myceligenerans. Production of bioactive compounds of pharmacological interest was investigated by high-performance liquid chromatography (HPLC) and gas chromatography-mass spectrometry (GC-MS) techniques and subsequent database comparison. Results reveal that deep-sea isolated Actinobacteria display a wide repertoire of secondary metabolite production with a high chemical diversity. Most identified products (both diffusible and volatiles) are known by their contrasted antibiotic or antitumor activities. Bioassays with ethyl acetate extracts from isolates displayed strong antibiotic activities against a panel of important resistant clinical pathogens, including Gram-positive and Gram-negative bacteria, as well as fungi, all of them isolated at two main hospitals (HUCA and Cabueñes) from the same geographical region. The identity of the active extracts components of these producing Actinobacteria is currently being investigated, given its potential for the discovery of pharmaceuticals and other products of biotechnological interest.
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Affiliation(s)
- Aida Sarmiento-Vizcaíno
- Departamento de Biología Funcional, Área de Microbiología, e Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, 33006, Oviedo, Spain
| | - Verónica González
- Departamento de Biología Funcional, Área de Microbiología, e Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, 33006, Oviedo, Spain
| | - Alfredo F Braña
- Departamento de Biología Funcional, Área de Microbiología, e Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, 33006, Oviedo, Spain
| | - Juan J Palacios
- Servicio de Microbiología, Hospital Universitario Central de Asturias (HUCA), Oviedo, Spain
| | - Luis Otero
- Servicio de Microbiología Hospital de Cabueñes, Gijón, Spain
| | - Jonathan Fernández
- Servicio de Microbiología, Hospital Universitario Central de Asturias (HUCA), Oviedo, Spain
| | - Axayacatl Molina
- Departamento de Biología de Organismos y Sistemas. Área de Ecología, Universidad de Oviedo, Oviedo, Spain
| | - Andreas Kulik
- Microbial Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Fernando Vázquez
- Departamento de Biología Funcional, Área de Microbiología, e Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, 33006, Oviedo, Spain
- Servicio de Microbiología, Hospital Universitario Central de Asturias (HUCA), Oviedo, Spain
| | - José L Acuña
- Departamento de Biología de Organismos y Sistemas. Área de Ecología, Universidad de Oviedo, Oviedo, Spain
| | - Luis A García
- Departamento de Ingeniería Química y Tecnología del Medio Ambiente. Área de Ingeniería Química, Universidad de Oviedo, Oviedo, Spain
| | - Gloria Blanco
- Departamento de Biología Funcional, Área de Microbiología, e Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, 33006, Oviedo, Spain.
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Rosłoniec E, Kulik A, Trzeciak J, Mika P. Association between VO 2PEAK and claudication walking time measured during walking on a treadmill and in community settings outdoor walk – Pilot study. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Giovannini S, Weibel L, Braunsdorf C, Schaller M, Schittek B, Kulik A, Fehrenbacher B, Röcken M, Kamenisch Y, Berneburg M. 522 Induction of the progeroid/cancer prone XP-like phenotype by an antimycotic drug is mediated via reversible downregulation of DNA repair, an update. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.06.545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Janek D, Zipperer A, Kulik A, Krismer B, Peschel A. High Frequency and Diversity of Antimicrobial Activities Produced by Nasal Staphylococcus Strains against Bacterial Competitors. PLoS Pathog 2016; 12:e1005812. [PMID: 27490492 PMCID: PMC4973975 DOI: 10.1371/journal.ppat.1005812] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 07/15/2016] [Indexed: 01/16/2023] Open
Abstract
The human nasal microbiota is highly variable and dynamic often enclosing major pathogens such as Staphylococcus aureus. The potential roles of bacteriocins or other mechanisms allowing certain bacterial clones to prevail in this nutrient-poor habitat have hardly been studied. Of 89 nasal Staphylococcus isolates, unexpectedly, the vast majority (84%) was found to produce antimicrobial substances in particular under habitat-specific stress conditions, such as iron limitation or exposure to hydrogen peroxide. Activity spectra were generally narrow but highly variable with activities against certain nasal members of the Actinobacteria, Proteobacteria, Firmicutes, or several groups of bacteria. Staphylococcus species and many other Firmicutes were insusceptible to most of the compounds. A representative bacteriocin was identified as a nukacin-related peptide whose inactivation reduced the capacity of the producer Staphylococcus epidermidis IVK45 to limit growth of other nasal bacteria. Of note, the bacteriocin genes were found on mobile genetic elements exhibiting signs of extensive horizontal gene transfer and rearrangements. Thus, continuously evolving bacteriocins appear to govern bacterial competition in the human nose and specific bacteriocins may become important agents for eradication of notorious opportunistic pathogens from human microbiota. The complex and dynamic microbial communities of human body surfaces are of utmost importance for human body functions in health and diseases. Human microbiomes contribute to metabolic processes, instruct the immune system, and often include antibiotic-resistant pathogens, responsible for the majority of severe bacterial infections. It is generally accepted that microbiota composition is strongly affected by mechanisms of microbial interference, but how specific bacteria may achieve fitness benefits and outcompete other microbes has remained largely unknown. We demonstrate that production of antimicrobial bacteriocins is not an occasional trait but a dominant and highly variable strategy among human nasal bacteria for limiting the growth of competing microbes. We found that more than 80% of nasal Staphylococcus isolates produce bacteriocins with highly diverse activity spectra, in particular under habitat-specific stress conditions such as iron limitation and exposure to hydrogen peroxide. Inactivation of a representative bacteriocin diminished the producer’s competitive capability indicating that bacteriocins may be a major driving force for the dynamics of microbiomes in nutrient-poor habitats such as the human nose. The identification of bacteriocin genes on mobile genetic elements with composite structure suggests that they are subject to highly dynamic co-evolutionary processes.
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Affiliation(s)
- Daniela Janek
- Interfaculty Institute of Microbiology and Infection Medicine, Infection Biology, Eberhard-Karls-University Tübingen, Tübingen, Germany
- German Center for Infection Research, Partner site Tübingen, Tübingen, Germany
| | - Alexander Zipperer
- Interfaculty Institute of Microbiology and Infection Medicine, Infection Biology, Eberhard-Karls-University Tübingen, Tübingen, Germany
- German Center for Infection Research, Partner site Tübingen, Tübingen, Germany
| | - Andreas Kulik
- German Center for Infection Research, Partner site Tübingen, Tübingen, Germany
- Interfaculty Institute of Microbiology and Infection Medicine, Microbiology/Biotechnology, Eberhard-Karls-University Tübingen, Tübingen, Germany
| | - Bernhard Krismer
- Interfaculty Institute of Microbiology and Infection Medicine, Infection Biology, Eberhard-Karls-University Tübingen, Tübingen, Germany
- German Center for Infection Research, Partner site Tübingen, Tübingen, Germany
- * E-mail:
| | - Andreas Peschel
- Interfaculty Institute of Microbiology and Infection Medicine, Infection Biology, Eberhard-Karls-University Tübingen, Tübingen, Germany
- German Center for Infection Research, Partner site Tübingen, Tübingen, Germany
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47
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Kilian R, Frasch HJ, Kulik A, Wohlleben W, Stegmann E. The VanRS Homologous Two-Component System VnlRSAb of the Glycopeptide Producer Amycolatopsis balhimycina Activates Transcription of the vanHAXSc Genes in Streptomyces coelicolor, but not in A. balhimycina. Microb Drug Resist 2016; 22:499-509. [PMID: 27420548 PMCID: PMC5036315 DOI: 10.1089/mdr.2016.0128] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
In enterococci and in Streptomyces coelicolor, a glycopeptide nonproducer, the glycopeptide resistance genes vanHAX are colocalized with vanRS. The two-component system (TCS) VanRS activates vanHAX transcription upon sensing the presence of glycopeptides. Amycolatopsis balhimycina, the producer of the vancomycin-like glycopeptide balhimycin, also possesses vanHAXAb genes. The genes for the VanRS-like TCS VnlRSAb, together with the carboxypeptidase gene vanYAb, are part of the balhimycin biosynthetic gene cluster, which is located 2 Mb separate from the vanHAXAb. The deletion of vnlRSAb did not affect glycopeptide resistance or balhimycin production. In the A. balhimycina vnlRAb deletion mutant, the vanHAXAb genes were expressed at the same level as in the wild type, and peptidoglycan (PG) analyses proved the synthesis of resistant PG precursors. Whereas vanHAXAb expression in A. balhimycina does not depend on VnlRAb, a VnlRAb-depending regulation of vanYAb was demonstrated by reverse transcriptase polymerase chain reaction (RT-PCR) and RNA-seq analyses. Although VnlRAb does not regulate the vanHAXAb genes in A. balhimycina, its heterologous expression in the glycopeptide-sensitive S. coelicolor ΔvanRSSc deletion mutant restored glycopeptide resistance. VnlRAb activates the vanHAXSc genes even in the absence of VanS. In addition, expression of vnlRAb increases actinorhodin production and influences morphological differentiation in S. coelicolor.
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Affiliation(s)
- Regina Kilian
- Interfaculty Institute of Microbiology and Infection Medicine Tuebingen, Microbiology/Biotechnology, University of Tuebingen, Tuebingen, Germany
| | - Hans-Joerg Frasch
- Interfaculty Institute of Microbiology and Infection Medicine Tuebingen, Microbiology/Biotechnology, University of Tuebingen, Tuebingen, Germany
| | - Andreas Kulik
- Interfaculty Institute of Microbiology and Infection Medicine Tuebingen, Microbiology/Biotechnology, University of Tuebingen, Tuebingen, Germany
| | - Wolfgang Wohlleben
- Interfaculty Institute of Microbiology and Infection Medicine Tuebingen, Microbiology/Biotechnology, University of Tuebingen, Tuebingen, Germany
- German Centre for Infection Research (DZIF), Partner Site Tuebingen, Tuebingen, Germany
| | - Evi Stegmann
- Interfaculty Institute of Microbiology and Infection Medicine Tuebingen, Microbiology/Biotechnology, University of Tuebingen, Tuebingen, Germany
- German Centre for Infection Research (DZIF), Partner Site Tuebingen, Tuebingen, Germany
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Schafhauser T, Kirchner N, Kulik A, Huijbers MM, Flor L, Caradec T, Fewer DP, Gross H, Jacques P, Jahn L, Jokela J, Leclère V, Ludwig-Müller J, Sivonen K, van Berkel WJ, Weber T, Wohlleben W, van Pée KH. The cyclochlorotine mycotoxin is produced by the nonribosomal peptide synthetase CctN inTalaromyces islandicus(‘Penicillium islandicum’). Environ Microbiol 2016; 18:3728-3741. [DOI: 10.1111/1462-2920.13294] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 02/15/2016] [Accepted: 03/07/2016] [Indexed: 01/08/2023]
Affiliation(s)
- Thomas Schafhauser
- Mikrobiologie und Biotechnologie, Interfakultäres Institut für Mikrobiologie und Infektionsmedizin; Eberhard Karls Universität Tübingen; Auf der Morgenstelle 28 72076 Tübingen Germany
| | - Norbert Kirchner
- Department of Pharmaceutical Biology; Pharmaceutical Institute, University of Tübingen; Auf der Morgenstelle 8 72076 Tübingen Germany
- German Centre for Infection Research (DZIF), Partner site Tübingen; 72076 Tübingen Germany
| | - Andreas Kulik
- Mikrobiologie und Biotechnologie, Interfakultäres Institut für Mikrobiologie und Infektionsmedizin; Eberhard Karls Universität Tübingen; Auf der Morgenstelle 28 72076 Tübingen Germany
| | - Mieke M.E. Huijbers
- Laboratory of Biochemistry; Wageningen University; Dreijenlaan 3 6703 HA Wageningen The Netherlands
| | - Liane Flor
- Allgemeine Biochemie, Technische Universität Dresden; 01069 Dresden Germany
| | - Thibault Caradec
- Research Laboratory in Agro-Food and Biotechnology; Charles Viollette Institute, Team ProBioGEM, Polytech-Lille, Université Lille1- Sciences et Technologies; 59655 Villeneuve d'Ascq France
| | - David P. Fewer
- Microbiology and Biotechnology Division, Department of Food and Environmental Sciences, University of Helsinki; Viikinkaari 9 FIN-00014 Helsinki Finland
| | - Harald Gross
- Department of Pharmaceutical Biology; Pharmaceutical Institute, University of Tübingen; Auf der Morgenstelle 8 72076 Tübingen Germany
- German Centre for Infection Research (DZIF), Partner site Tübingen; 72076 Tübingen Germany
| | - Philippe Jacques
- Research Laboratory in Agro-Food and Biotechnology; Charles Viollette Institute, Team ProBioGEM, Polytech-Lille, Université Lille1- Sciences et Technologies; 59655 Villeneuve d'Ascq France
| | - Linda Jahn
- Institut für Botanik; Technische Universität Dresden; 01062 Dresden Germany
| | - Jouni Jokela
- Microbiology and Biotechnology Division, Department of Food and Environmental Sciences, University of Helsinki; Viikinkaari 9 FIN-00014 Helsinki Finland
| | - Valérie Leclère
- Research Laboratory in Agro-Food and Biotechnology; Charles Viollette Institute, Team ProBioGEM, Polytech-Lille, Université Lille1- Sciences et Technologies; 59655 Villeneuve d'Ascq France
| | | | - Kaarina Sivonen
- Microbiology and Biotechnology Division, Department of Food and Environmental Sciences, University of Helsinki; Viikinkaari 9 FIN-00014 Helsinki Finland
| | - Willem J.H. van Berkel
- Laboratory of Biochemistry; Wageningen University; Dreijenlaan 3 6703 HA Wageningen The Netherlands
| | - Tilmann Weber
- Mikrobiologie und Biotechnologie, Interfakultäres Institut für Mikrobiologie und Infektionsmedizin; Eberhard Karls Universität Tübingen; Auf der Morgenstelle 28 72076 Tübingen Germany
- German Centre for Infection Research (DZIF), Partner site Tübingen; 72076 Tübingen Germany
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark; Kogle Alle 6 2970 Hørsholm Denmark
| | - Wolfgang Wohlleben
- Mikrobiologie und Biotechnologie, Interfakultäres Institut für Mikrobiologie und Infektionsmedizin; Eberhard Karls Universität Tübingen; Auf der Morgenstelle 28 72076 Tübingen Germany
- German Centre for Infection Research (DZIF), Partner site Tübingen; 72076 Tübingen Germany
| | - Karl-Heinz van Pée
- Allgemeine Biochemie, Technische Universität Dresden; 01069 Dresden Germany
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Zettler J, Zubeil F, Kulik A, Grond S, Kaysser L. Epoxomicin and Eponemycin Biosynthesis Involves gem-Dimethylation and an Acyl-CoA Dehydrogenase-Like Enzyme. Chembiochem 2016; 17:792-8. [PMID: 26789439 DOI: 10.1002/cbic.201500567] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Indexed: 11/12/2022]
Abstract
The α',β'-epoxyketone moiety of proteasome inhibitors confers high binding specificity to the N-terminal threonine in catalytic proteasome β-subunits. We recently identified the epoxomicin and eponemycin biosynthetic gene clusters and have now conducted isotope-enriched precursor feeding studies and comprehensive gene deletion experiments to shed further light on their biosynthetic pathways. Leucine and two methyl groups from S-adenosylmethionine were readily incorporated into the epoxyketone warhead, suggesting decarboxylation of the thioester intermediate. Formation of the α',β'-epoxyketone is likely mediated by conserved acyl-CoA dehydrogenase-like enzymes, as indicated by complete loss of epoxomicin and eponemycin production in the respective knockout mutants. Our results clarify crucial questions in the formation of epoxyketone compounds and lay the foundation for in vitro biochemical studies on the biosynthesis of this pharmaceutically important class of proteasome inhibitors.
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Affiliation(s)
- Judith Zettler
- Pharmaceutical Biology, University of Tübingen, Auf der Morgenstelle 8, 72076, Tübingen, Germany.,German Centre for Infection Research (DZIF), partner site Tübingen, Auf der Morgenstelle 8, 72076, Tübingen, Germany
| | - Florian Zubeil
- Institute of Organic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
| | - Andreas Kulik
- Interfaculty Institute for Microbiology and Infection Medicine Tübingen (IMIT), Microbiology/Biotechnology, University of Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Stephanie Grond
- Institute of Organic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
| | - Leonard Kaysser
- Pharmaceutical Biology, University of Tübingen, Auf der Morgenstelle 8, 72076, Tübingen, Germany. .,German Centre for Infection Research (DZIF), partner site Tübingen, Auf der Morgenstelle 8, 72076, Tübingen, Germany.
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50
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Tanvir R, Sajid I, Hasnain S, Kulik A, Grond S. Rare actinomycetes Nocardia caishijiensis and Pseudonocardia carboxydivorans as endophytes, their bioactivity and metabolites evaluation. Microbiol Res 2016; 185:22-35. [PMID: 26946375 DOI: 10.1016/j.micres.2016.01.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 11/23/2015] [Accepted: 01/20/2016] [Indexed: 11/15/2022]
Abstract
Two strains identified as Nocardia caishijiensis (SORS 64b) and Pseudonocardia carboxydivorans (AGLS 2) were isolated as endophytes from Sonchus oleraceus and Ageratum conyzoides respectively. The analysis of their extracts revealed them to be strongly bioactive. The N. caishijiensis extract gave an LC50 of 570 μg/ml(-1) in the brine shrimp cytotoxicity assay and an EC50 of 0.552 μg/ml(-1) in the DPPH antioxidant assay. Antimicrobial activity was observed against Methicillin resistant Staphlococcus aureus (MRSA) and Escherichia coli ATCC 25922 (14 mm), Klebsiella pneumoniae ATCC 706003 (13 mm), S. aureus ATCC 25923 (11 mm) and Candida tropicalis (20 mm). For the extract of P. carboxydivorans the EC50 was 0.670 μg/ml(-1) and it was observed to be more bioactive against Bacillus subtilis DSM 10 ATCC 6051 (21 mm), C. tropicalis (20 mm), S. aureus ATCC 25923 (17 mm), MRSA (17 mm), E. coli K12 (W1130) (16 mm) and Chlorella vulgaris (10 mm). The genotoxicity testing revealed a 20 mm zone of inhibition against the polA mutant strain E. coli K-12 AB 3027 suggesting damage to the DNA and polA genes. The TLC and bioautography screening revealed a diversity of active bands of medium polar and nonpolar compounds. Metabolite analysis by HPLC-DAD via UV/vis spectral screening suggested the possibility of stenothricin and bagremycin A in the mycelium extract of N. caishijiensis respectively. In the broth and mycelium extract of P. carboxydivorans borrelidin was suggested along with α-pyrone. The HPLC-MS revealed bioactive long chained amide derivatives such as 7-Octadecenamide, 9, 12 octadecandienamide. This study reports the rare actinomycetes N. caishijiensis and P. carboxydivorans as endophytes and evaluates their bioactive metabolites.
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Affiliation(s)
- Rabia Tanvir
- Department of Microbiology and Molecular Genetics, University of the Punjab, Quaid-e-Azam Campus, 54590, Lahore, Punjab, Pakistan; Institut fur Organische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18A, 72076, Tübingen, Germany.
| | - Imran Sajid
- Department of Microbiology and Molecular Genetics, University of the Punjab, Quaid-e-Azam Campus, 54590, Lahore, Punjab, Pakistan
| | - Shahida Hasnain
- Department of Microbiology and Molecular Genetics, University of the Punjab, Quaid-e-Azam Campus, 54590, Lahore, Punjab, Pakistan; Department of Microbiology and Molecular Genetics, The Women University, Multan, Punjab, Pakistan
| | - Andreas Kulik
- Mikrobiologie/Biotechnologie, Interfakultäres Institut für Mikrobiologie und Infektionsmedizin, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 28, 72076, Tübingen, Germany
| | - Stephanie Grond
- Institut fur Organische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18A, 72076, Tübingen, Germany
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