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  1. Article: Reprogramming of the Caseinolytic Protease by ADEP Antibiotics: Molecular Mechanism, Cellular Consequences, Therapeutic Potential.

    Brötz-Oesterhelt, Heike / Vorbach, Andreas

    Frontiers in molecular biosciences

    2021  Volume 8, Page(s) 690902

    Abstract: Rising antibiotic resistance urgently calls for the discovery and evaluation of novel antibiotic classes and unique antibiotic targets. The caseinolytic protease Clp emerged as an unprecedented target for antibiotic therapy 15 years ago when it was ... ...

    Abstract Rising antibiotic resistance urgently calls for the discovery and evaluation of novel antibiotic classes and unique antibiotic targets. The caseinolytic protease Clp emerged as an unprecedented target for antibiotic therapy 15 years ago when it was observed that natural product-derived acyldepsipeptide antibiotics (ADEP) dysregulated its proteolytic core ClpP towards destructive proteolysis in bacterial cells. A substantial database has accumulated since on the interaction of ADEP with ClpP, which is comprehensively compiled in this review. On the molecular level, we describe the conformational control that ADEP exerts over ClpP, the nature of the protein substrates degraded, and the emerging structure-activity-relationship of the ADEP compound class. On the physiological level, we review the multi-faceted antibacterial mechanism, species-dependent killing modes, the activity against carcinogenic cells, and the therapeutic potential of the compound class.
    Language English
    Publishing date 2021-05-13
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2814330-9
    ISSN 2296-889X
    ISSN 2296-889X
    DOI 10.3389/fmolb.2021.690902
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Reprogramming of the Caseinolytic Protease by ADEP Antibiotics

    Heike Brötz-Oesterhelt / Andreas Vorbach

    Frontiers in Molecular Biosciences, Vol

    Molecular Mechanism, Cellular Consequences, Therapeutic Potential

    2021  Volume 8

    Abstract: Rising antibiotic resistance urgently calls for the discovery and evaluation of novel antibiotic classes and unique antibiotic targets. The caseinolytic protease Clp emerged as an unprecedented target for antibiotic therapy 15 years ago when it was ... ...

    Abstract Rising antibiotic resistance urgently calls for the discovery and evaluation of novel antibiotic classes and unique antibiotic targets. The caseinolytic protease Clp emerged as an unprecedented target for antibiotic therapy 15 years ago when it was observed that natural product-derived acyldepsipeptide antibiotics (ADEP) dysregulated its proteolytic core ClpP towards destructive proteolysis in bacterial cells. A substantial database has accumulated since on the interaction of ADEP with ClpP, which is comprehensively compiled in this review. On the molecular level, we describe the conformational control that ADEP exerts over ClpP, the nature of the protein substrates degraded, and the emerging structure-activity-relationship of the ADEP compound class. On the physiological level, we review the multi-faceted antibacterial mechanism, species-dependent killing modes, the activity against carcinogenic cells, and the therapeutic potential of the compound class.
    Keywords ClpP ; protease ; acyldepsipeptide ; antibiotic ; mode of action ; conformational control ; Biology (General) ; QH301-705.5
    Language English
    Publishing date 2021-05-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Integrating research on bacterial pathogens and commensals to fight infections-an ecological perspective.

    Maier, Lisa / Stein-Thoeringer, Christoph / Ley, Ruth E / Brötz-Oesterhelt, Heike / Link, Hannes / Ziemert, Nadine / Wagner, Samuel / Peschel, Andreas

    The Lancet. Microbe

    2024  

    Abstract: The incidence of antibiotic-resistant bacterial infections is increasing, and development of new antibiotics has been deprioritised by the pharmaceutical industry. Interdisciplinary research approaches, based on the ecological principles of bacterial ... ...

    Abstract The incidence of antibiotic-resistant bacterial infections is increasing, and development of new antibiotics has been deprioritised by the pharmaceutical industry. Interdisciplinary research approaches, based on the ecological principles of bacterial fitness, competition, and transmission, could open new avenues to combat antibiotic-resistant infections. Many facultative bacterial pathogens use human mucosal surfaces as their major reservoirs and induce infectious diseases to aid their lateral transmission to new host organisms under some pathological states of the microbiome and host. Beneficial bacterial commensals can outcompete specific pathogens, thereby lowering the capacity of the pathogens to spread and cause serious infections. Despite the clinical relevance, however, the understanding of commensal-pathogen interactions in their natural habitats remains poor. In this Personal View, we highlight directions to intensify research on the interactions between bacterial pathogens and commensals in the context of human microbiomes and host biology that can lead to the development of innovative and sustainable ways of preventing and treating infectious diseases.
    Language English
    Publishing date 2024-04-09
    Publishing country England
    Document type Journal Article ; Review
    ISSN 2666-5247
    ISSN (online) 2666-5247
    DOI 10.1016/S2666-5247(24)00049-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Generation of Lasso Peptide-Based ClpP Binders.

    Malik, Imran T / Hegemann, Julian D / Brötz-Oesterhelt, Heike

    International journal of molecular sciences

    2021  Volume 23, Issue 1

    Abstract: The Clp protease system fulfills a plethora of important functions in bacteria. It consists of a tetradecameric ClpP barrel holding the proteolytic centers and two hexameric Clp-ATPase rings, which recognize, unfold, and then feed substrate proteins into ...

    Abstract The Clp protease system fulfills a plethora of important functions in bacteria. It consists of a tetradecameric ClpP barrel holding the proteolytic centers and two hexameric Clp-ATPase rings, which recognize, unfold, and then feed substrate proteins into the ClpP barrel for proteolytic degradation. Flexible loops carrying conserved tripeptide motifs protrude from the Clp-ATPases and bind into hydrophobic pockets (H-pockets) on ClpP. Here, we set out to engineer microcin J25 (MccJ25), a ribosomally synthesized and post-translationally modified peptide (RiPP) of the lasso peptide subfamily, by introducing the conserved tripeptide motifs into the lasso peptide loop region to mimic the Clp-ATPase loops. We studied the capacity of the resulting lasso peptide variants to bind to ClpP and affect its activity. From the nine variants generated, one in particular (12IGF) was able to activate ClpP from
    MeSH term(s) Bacillus subtilis/genetics ; Bacillus subtilis/metabolism ; Endopeptidase Clp/genetics ; Endopeptidase Clp/metabolism ; Proteolysis ; Staphylococcus aureus/genetics ; Staphylococcus aureus/metabolism
    Chemical Substances Endopeptidase Clp (EC 3.4.21.92)
    Language English
    Publishing date 2021-12-31
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms23010465
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Correction to "The Antibacterial Synnepyrroles from Human-associated

    Zhang, Lei / Esquembre, Lidia Alejo / Xia, Shu-Ning / Oesterhelt, Filipp / Hughes, Chambers C / Brötz-Oesterhelt, Heike / Teufel, Robin

    ACS chemical biology

    2023  Volume 18, Issue 8, Page(s) 1905

    Language English
    Publishing date 2023-07-13
    Publishing country United States
    Document type Published Erratum
    ISSN 1554-8937
    ISSN (online) 1554-8937
    DOI 10.1021/acschembio.3c00388
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: The microbiome-shaping roles of bacteriocins.

    Heilbronner, Simon / Krismer, Bernhard / Brötz-Oesterhelt, Heike / Peschel, Andreas

    Nature reviews. Microbiology

    2021  Volume 19, Issue 11, Page(s) 726–739

    Abstract: The microbiomes on human body surfaces affect health in multiple ways. They include not only commensal or mutualistic bacteria but also potentially pathogenic bacteria, which can enter sterile tissues to cause invasive infection. Many commensal bacteria ... ...

    Abstract The microbiomes on human body surfaces affect health in multiple ways. They include not only commensal or mutualistic bacteria but also potentially pathogenic bacteria, which can enter sterile tissues to cause invasive infection. Many commensal bacteria produce small antibacterial molecules termed bacteriocins that have the capacity to eliminate specific colonizing pathogens; as such, bacteriocins have attracted increased attention as potential microbiome-editing tools. Metagenome-based and activity-based screening approaches have strongly expanded our knowledge of the abundance and diversity of bacteriocin biosynthetic gene clusters and the properties of a continuously growing list of bacteriocin classes. The dynamic acquisition, diversification or loss of bacteriocin genes can shape the fitness of a bacterial strain that is in competition with bacteriocin-susceptible bacteria. However, a bacteriocin can only provide a competitive advantage if its fitness benefit exceeds the metabolic cost of production, if it spares crucial mutualistic partner strains and if major competitors cannot develop resistance. In contrast to most currently available antibiotics, many bacteriocins have only narrow activity ranges and could be attractive agents for precision therapy and prevention of infections. A common scientific strategy involving multiple disciplines is needed to uncover the immense potential of microbiome-shaping bacteriocins.
    MeSH term(s) Bacteria/metabolism ; Bacteriocins/chemistry ; Bacteriocins/metabolism ; Bacteriocins/pharmacology ; Microbiota
    Chemical Substances Bacteriocins
    Language English
    Publishing date 2021-06-01
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2139054-X
    ISSN 1740-1534 ; 1740-1526
    ISSN (online) 1740-1534
    ISSN 1740-1526
    DOI 10.1038/s41579-021-00569-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Molecular Characterization of the ClpC AAA+ ATPase in the Biology of Chlamydia trachomatis.

    Pan, Stefan / Jensen, Aaron A / Wood, Nicholas A / Henrichfreise, Beate / Brötz-Oesterhelt, Heike / Fisher, Derek J / Sass, Peter / Ouellette, Scot P

    mBio

    2023  Volume 14, Issue 2, Page(s) e0007523

    Abstract: Bacterial AAA+ unfoldases are crucial for bacterial physiology by recognizing specific substrates and, typically, unfolding them for degradation by a proteolytic component. ... ...

    Abstract Bacterial AAA+ unfoldases are crucial for bacterial physiology by recognizing specific substrates and, typically, unfolding them for degradation by a proteolytic component. The
    MeSH term(s) Humans ; Chlamydia trachomatis/metabolism ; ATPases Associated with Diverse Cellular Activities/metabolism ; Proteolysis ; Peptide Hydrolases/metabolism ; Biology ; Bacterial Proteins/metabolism ; Chlamydia Infections
    Chemical Substances ATPases Associated with Diverse Cellular Activities (EC 3.6.4.-) ; Peptide Hydrolases (EC 3.4.-) ; Bacterial Proteins
    Language English
    Publishing date 2023-03-28
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2557172-2
    ISSN 2150-7511 ; 2161-2129
    ISSN (online) 2150-7511
    ISSN 2161-2129
    DOI 10.1128/mbio.00075-23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Identification of macrocyclic peptides which activate bacterial cylindrical proteases.

    Walther, Raoul / Westermann, Linda M / Carmali, Sheiliza / Jackson, Sophie E / Brötz-Oesterhelt, Heike / Spring, David R

    RSC medicinal chemistry

    2023  Volume 14, Issue 6, Page(s) 1186–1191

    Abstract: The caseinolytic protease complex ClpXP is an important house-keeping enzyme in prokaryotes charged with the removal and degradation of misfolded and aggregated proteins and performing regulatory proteolysis. Dysregulation of its function, particularly ... ...

    Abstract The caseinolytic protease complex ClpXP is an important house-keeping enzyme in prokaryotes charged with the removal and degradation of misfolded and aggregated proteins and performing regulatory proteolysis. Dysregulation of its function, particularly by inhibition or allosteric activation of the proteolytic core ClpP, has proven to be a promising strategy to reduce virulence and eradicate persistent bacterial infections. Here, we report a rational drug-design approach to identify macrocyclic peptides which increase proteolysis by ClpP. This work expands the understanding of ClpP dynamics and sheds light on the conformational control exerted by its binding partner, the chaperone ClpX, by means of a chemical approach. The identified macrocyclic peptide ligands may, in the future, serve as a starting point for the development of ClpP activators for antibacterial applications.
    Language English
    Publishing date 2023-05-17
    Publishing country England
    Document type Journal Article
    ISSN 2632-8682
    ISSN (online) 2632-8682
    DOI 10.1039/d3md00136a
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Antibacterial Marinopyrroles and Pseudilins Act as Protonophores.

    Castro-Falcón, Gabriel / Straetener, Jan / Bornikoel, Jan / Reimer, Daniela / Purdy, Trevor N / Berscheid, Anne / Schempp, Florence M / Liu, Dennis Y / Linington, Roger G / Brötz-Oesterhelt, Heike / Hughes, Chambers C

    ACS chemical biology

    2024  Volume 19, Issue 3, Page(s) 743–752

    Abstract: Elucidating the mechanism of action (MoA) of antibacterial natural products is crucial to evaluating their potential as novel antibiotics. Marinopyrroles, pentachloropseudilin, and pentabromopseudilin are densely halogenated, hybrid pyrrole-phenol ... ...

    Abstract Elucidating the mechanism of action (MoA) of antibacterial natural products is crucial to evaluating their potential as novel antibiotics. Marinopyrroles, pentachloropseudilin, and pentabromopseudilin are densely halogenated, hybrid pyrrole-phenol natural products with potent activity against Gram-positive bacterial pathogens like
    MeSH term(s) Animals ; Anti-Bacterial Agents/pharmacology ; Pyrroles/pharmacology ; Hydrocarbons, Chlorinated ; Biological Products ; Microbial Sensitivity Tests ; Mammals
    Chemical Substances pentachloropseudilin ; Anti-Bacterial Agents ; Pyrroles ; Hydrocarbons, Chlorinated ; Biological Products
    Language English
    Publishing date 2024-02-20
    Publishing country United States
    Document type Journal Article
    ISSN 1554-8937
    ISSN (online) 1554-8937
    DOI 10.1021/acschembio.3c00773
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Generation of Lasso Peptide-Based ClpP Binders

    Imran T. Malik / Julian D. Hegemann / Heike Brötz-Oesterhelt

    International Journal of Molecular Sciences, Vol 23, Iss 465, p

    2022  Volume 465

    Abstract: The Clp protease system fulfills a plethora of important functions in bacteria. It consists of a tetradecameric ClpP barrel holding the proteolytic centers and two hexameric Clp-ATPase rings, which recognize, unfold, and then feed substrate proteins into ...

    Abstract The Clp protease system fulfills a plethora of important functions in bacteria. It consists of a tetradecameric ClpP barrel holding the proteolytic centers and two hexameric Clp-ATPase rings, which recognize, unfold, and then feed substrate proteins into the ClpP barrel for proteolytic degradation. Flexible loops carrying conserved tripeptide motifs protrude from the Clp-ATPases and bind into hydrophobic pockets (H-pockets) on ClpP. Here, we set out to engineer microcin J25 (MccJ25), a ribosomally synthesized and post-translationally modified peptide (RiPP) of the lasso peptide subfamily, by introducing the conserved tripeptide motifs into the lasso peptide loop region to mimic the Clp-ATPase loops. We studied the capacity of the resulting lasso peptide variants to bind to ClpP and affect its activity. From the nine variants generated, one in particular (12IGF) was able to activate ClpP from Staphylococcus aureus and Bacillus subtilis . While 12IGF conferred stability to ClpP tetradecamers and stimulated peptide degradation, it did not trigger unregulated protein degradation, in contrast to the H-pocket-binding acyldepsipeptide antibiotics (ADEPs). Interestingly, synergistic interactions between 12IGF and ADEP were observed.
    Keywords Clp protease ; Clp ATPase ; lasso peptide ; epitope grafting ; mutagenesis ; bioengineering ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
    Subject code 540
    Language English
    Publishing date 2022-12-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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