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Barrett SE, Mitchell DA. Advances in lasso peptide discovery, biosynthesis, and function. Trends Genet 2024:S0168-9525(24)00179-3. [PMID: 39218755 DOI: 10.1016/j.tig.2024.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 08/06/2024] [Accepted: 08/07/2024] [Indexed: 09/04/2024]
Abstract
Lasso peptides are a large and sequence-diverse class of ribosomally synthesized and post-translationally modified peptide (RiPP) natural products characterized by their slip knot-like shape. These unique, highly stable peptides are produced by bacteria for various purposes. Their stability and sequence diversity make them a potentially useful scaffold for biomedically relevant folded peptides. However, many questions remain about lasso peptide biosynthesis, ecological function, and diversification potential for biomedical and agricultural applications. This review discusses new insights and open questions about lasso peptide biosynthesis and biological function. The role that genome mining has played in the development of new methodologies for discovering and diversifying lasso peptides is also discussed.
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Affiliation(s)
- Susanna E Barrett
- Department of Chemistry at the University of Illinois Urbana-Champaign, Urbana, IL, USA; Carl R. Woese Institute for Genomic Biology at University of Illinois Urbana-Champaign, Urbana, IL, USA
| | - Douglas A Mitchell
- Department of Chemistry at the University of Illinois Urbana-Champaign, Urbana, IL, USA; Carl R. Woese Institute for Genomic Biology at University of Illinois Urbana-Champaign, Urbana, IL, USA.
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2
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Baquero F, Beis K, Craik DJ, Li Y, Link AJ, Rebuffat S, Salomón R, Severinov K, Zirah S, Hegemann JD. The pearl jubilee of microcin J25: thirty years of research on an exceptional lasso peptide. Nat Prod Rep 2024; 41:469-511. [PMID: 38164764 DOI: 10.1039/d3np00046j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Covering: 1992 up to 2023Since their discovery, lasso peptides went from peculiarities to be recognized as a major family of ribosomally synthesized and post-translationally modified peptide (RiPP) natural products that were shown to be spread throughout the bacterial kingdom. Microcin J25 was first described in 1992, making it one of the earliest known lasso peptides. No other lasso peptide has since then been studied to such an extent as microcin J25, yet, previous review articles merely skimmed over all the research done on this exceptional lasso peptide. Therefore, to commemorate the 30th anniversary of its first report, we give a comprehensive overview of all literature related to microcin J25. This review article spans the early work towards the discovery of microcin J25, its biosynthetic gene cluster, and the elucidation of its three-dimensional, threaded lasso structure. Furthermore, the current knowledge about the biosynthesis of microcin J25 and lasso peptides in general is summarized and a detailed overview is given on the biological activities associated with microcin J25, including means of self-immunity, uptake into target bacteria, inhibition of the Gram-negative RNA polymerase, and the effects of microcin J25 on mitochondria. The in vitro and in vivo models used to study the potential utility of microcin J25 in a (veterinary) medicine context are discussed and the efforts that went into employing the microcin J25 scaffold in bioengineering contexts are summed up.
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Affiliation(s)
- Fernando Baquero
- Department of Microbiology, Ramón y Cajal University Hospital and Ramón y Cajal Institute for Health Research (IRYCIS), Madrid, Spain
- Network Center for Research in Epidemiology and Public Health (CIBER-ESP), Madrid, Spain
| | - Konstantinos Beis
- Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK
- Rutherford Appleton Laboratory, Research Complex at Harwell, Didcot, Oxfordshire OX11 0FA, UK
| | - David J Craik
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, 4072 Brisbane, Queensland, Australia
| | - Yanyan Li
- Laboratoire Molécules de Communication et Adaptation des Microorganismes (MCAM), UMR 7245, Muséum National d'Histoire Naturelle (MNHN), Centre National de la Recherche Scientifique (CNRS), Paris, France
| | - A James Link
- Departments of Chemical and Biological Engineering, Chemistry, and Molecular Biology, Princeton University, Princeton, NJ 08544, USA
| | - Sylvie Rebuffat
- Laboratoire Molécules de Communication et Adaptation des Microorganismes (MCAM), UMR 7245, Muséum National d'Histoire Naturelle (MNHN), Centre National de la Recherche Scientifique (CNRS), Paris, France
| | - Raúl Salomón
- Instituto de Química Biológica "Dr Bernabé Bloj", Facultad de Bioquímica, Química y Farmacia, Instituto Superior de Investigaciones Biológicas (INSIBIO), CONICET-UNT, San Miguel de Tucumán, Argentina
| | - Konstantin Severinov
- Waksman Institute for Microbiology, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Séverine Zirah
- Laboratoire Molécules de Communication et Adaptation des Microorganismes (MCAM), UMR 7245, Muséum National d'Histoire Naturelle (MNHN), Centre National de la Recherche Scientifique (CNRS), Paris, France
| | - Julian D Hegemann
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University Campus, 66123 Saarbrücken, Germany.
- Department of Pharmacy, Campus E8 1, Saarland University, 66123 Saarbrücken, Germany
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3
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Unusual Post-Translational Modifications in the Biosynthesis of Lasso Peptides. Int J Mol Sci 2022; 23:ijms23137231. [PMID: 35806232 PMCID: PMC9266682 DOI: 10.3390/ijms23137231] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/27/2022] [Accepted: 06/27/2022] [Indexed: 11/16/2022] Open
Abstract
Lasso peptides are a subclass of ribosomally synthesized and post-translationally modified peptides (RiPPs) and feature the threaded, lariat knot-like topology. The basic post-translational modifications (PTMs) of lasso peptide contain two steps, including the leader peptide removal of the ribosome-derived linear precursor peptide by an ATP-dependent cysteine protease, and the macrolactam cyclization by an ATP-dependent macrolactam synthetase. Recently, advanced bioinformatic tools combined with genome mining have paved the way to uncover a rapidly growing number of lasso peptides as well as a series of PTMs other than the general class-defining processes. Despite abundant reviews focusing on lasso peptide discoveries, structures, properties, and physiological functionalities, few summaries concerned their unique PTMs. In this review, we summarized all the unique PTMs of lasso peptides uncovered to date, shedding light on the related investigations in the future.
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Hills E, Woodward TJ, Fields S, Brandsen BM. Comprehensive Mutational Analysis of the Lasso Peptide Klebsidin. ACS Chem Biol 2022; 17:998-1010. [PMID: 35315272 PMCID: PMC9976627 DOI: 10.1021/acschembio.2c00148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Antibiotic resistance is a growing threat to public health, making the development of antibiotics of critical importance. One promising class of potential new antibiotics are ribosomally synthesized and post-translationally modified peptides (RiPPs), which include klebsidin, a lasso peptide from Klebsiella pneumoniae that inhibits certain bacterial RNA polymerases. We develop a high-throughput assay based on growth inhibition of Escherichia coli to analyze the mutational tolerance of klebsidin. We transform a library of klebsidin variants into E. coli and use next-generation DNA sequencing to count the frequency of each variant before and after its expression, thereby generating functional scores for 320 of 361 single amino acid changes. We identify multiple positions in the macrocyclic ring and the C-terminal tail region of klebsidin that are intolerant to mutation, as well as positions in the loop region that are highly tolerant to mutation. Characterization of selected peptide variants scored as active reveals that each adopts a threaded lasso conformation; active loop variants applied extracellularly as peptides slow the growth of E. coli and K. pneumoniae. We generate an E. coli strain with a mutation in RNA polymerase that confers resistance to klebsidin and similarly carry out a selection with the klebsidin library. We identify a single variant, klebsidin F9Y, that maintains activity against the resistant E. coli when expressed intracellularly. This finding supports the utility of this method and suggests that comprehensive mutational analysis of lasso peptides can identify unique and potentially improved variants.
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Affiliation(s)
- Ethan Hills
- Department of Genome Sciences, University of Washington, Seattle, Washington 98195, United States
| | - Tyler J. Woodward
- Department of Chemistry and Biochemistry, Creighton University, Omaha, Nebraska 68178, United States
| | - Stanley Fields
- Department of Genome Sciences, University of Washington, Seattle, Washington 98195, United States,Department of Medicine, University of Washington, Seattle, Washington 98195, United States
| | - Benjamin M. Brandsen
- Department of Genome Sciences, University of Washington, Seattle, Washington 98195, United States,Department of Chemistry and Biochemistry, Creighton University, Omaha, Nebraska 68178, United States,Correspondence: Benjamin M. Brandsen, , ph. 402 280-2153
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Xiu H, Wang M, Fage CD, He Y, Niu X, Han M, Li F, An X, Fan H, Song L, Zheng G, Zhu S, Tong Y. Discovery and Characterization of Rubrinodin Provide Clues into the Evolution of Lasso Peptides. Biochemistry 2022; 61:595-607. [PMID: 35298141 DOI: 10.1021/acs.biochem.2c00029] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Lasso peptides are unique natural products that comprise a class of ribosomally synthesized and post-translationally modified peptides. Their defining three-dimensional structure is a lariat knot, in which the C-terminal tail is threaded through a macrolactam ring formed between the N-terminal amino group and an Asp or Glu side chain (i.e., an isopeptide bond). Recent genome mining strategies have revealed various types of lasso peptide biosynthetic gene clusters and have thus redefined the known chemical space of lasso peptides. To date, over 20 different types of these gene clusters have been discovered, including several different clades from Proteobacteria. Despite the diverse architectures of these gene clusters, which may or may not encode various tailoring enzymes, most currently known lasso peptides are synthesized by two discrete clades defined by the presence of an ATP-binding cassette transporter or its absence and (sometimes) concurrent appearance of an isopeptidase, raising questions about their evolutionary history. Herein, we discovered and characterized the lasso peptide rubrinodin, which is assembled by a gene cluster encoding both an ATP-binding cassette transporter and an isopeptidase. Our bioinformatics analyses of this and other representative cluster types provided new clues into the evolutionary history of lasso peptides. Furthermore, our structural and biochemical investigations of rubrinodin permitted the conversion of this thermolabile lasso peptide into a more thermostable scaffold.
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Affiliation(s)
- Huanhuan Xiu
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Mengjiao Wang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | | | - Yile He
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Xiaogang Niu
- Beijing Nuclear Magnetic Resonance Center, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Meng Han
- MOE Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing 100084, People's Republic of China
| | - Fei Li
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Xiaoping An
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Huahao Fan
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Lihua Song
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Guojun Zheng
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Shaozhou Zhu
- National Institutes for Food and Drug Control, Beijing 102629, People's Republic of China
| | - Yigang Tong
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
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6
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Hegemann JD. Combined thermal and carboxypeptidase Y stability assays for probing the threaded fold of lasso peptides. Methods Enzymol 2022; 663:177-204. [PMID: 35168788 DOI: 10.1016/bs.mie.2021.09.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Lasso peptides are natural products belonging to the superfamily of ribosomally synthesized and post-translationally modified peptides (RiPPs). The defining characteristic of lasso peptides is their threaded structure, which is reminiscent of a lariat knot. When working with lasso peptides, it is therefore of major importance to understand and evidence their threaded folds. While the full elucidation of their three-dimensional structures via NMR spectroscopy or crystallization remains the gold standard, these methods are time-consuming, require large quantities of highly pure lasso peptides, and therefore might not always be applicable. Instead, the unique properties of lasso peptides in context of their behavior at elevated temperatures and toward carboxypeptidase Y treatment can be leveraged as a tool to investigate and evidence the threaded lasso fold using only minute amounts of compound that does not need to be purified first. This chapter will provide insights into the thermal stability properties of lasso peptides and their behavior when treated with carboxypeptidase Y in comparison to a branched-cyclic peptide with the same amino acid sequence. Furthermore, it will be described in detail how to set up a combined thermal and carboxypeptidase Y stability assay and how to analyze its outcomes.
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Affiliation(s)
- Julian D Hegemann
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University Campus, Saarbrücken, Germany.
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7
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Liu T, Ma X, Yu J, Yang W, Wang G, Wang Z, Ge Y, Song J, Han H, Zhang W, Yang D, Liu X, Ma M. Rational generation of lasso peptides based on biosynthetic gene mutations and site-selective chemical modifications. Chem Sci 2021; 12:12353-12364. [PMID: 34603665 PMCID: PMC8480316 DOI: 10.1039/d1sc02695j] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 08/10/2021] [Indexed: 12/14/2022] Open
Abstract
Lasso peptides are a unique family of natural products whose structures feature a specific threaded fold, which confers these peptides the resistance to thermal and proteolytic degradation. This stability gives lasso peptides excellent pharmacokinetic properties, which together with their diverse reported bioactivities have garnered extensive attention because of their drug development potential. Notably, the threaded fold has proven quite inaccessible by chemical synthesis, which has hindered efficient generation of structurally diverse lasso peptides. We herein report the discovery of a new lasso peptide stlassin (1) by gene activation based on a Streptomyces heterologous expression system. Site-directed mutagenesis on the precursor peptide-encoding gene is carried out systematically, generating 17 stlassin derivatives (2–17 and 21) with residue-replacements at specific positions of 1. The solution NMR structures of 1, 3, 4, 14 and 16 are determined, supporting structural comparisons that ultimately enabled the rational production of disulfide bond-containing derivatives 18 and 19, whose structures do not belong to any of the four classes currently used to classify lasso peptides. Several site-selective chemical modifications are first applied on 16 and 21, efficiently generating new derivatives (20, 22–27) whose structures bear various decorations beyond the peptidyl monotonicity. The high production yields of these stlassin derivatives facilitate biological assays, which show that 1, 4, 16, 20, 21 and 24 possess antagonistic activities against the binding of lipopolysaccharides to toll-like receptor 4 (TLR4). These results demonstrate proof-of-concept for the combined mutational/chemical generation of lasso peptide libraries to support drug lead development. A new class II lasso peptide stlassin (1) was discovered and stlassin derivatives (2–27) were rationally generated by biosynthetic gene mutations and site-selective chemical modifications, expanding the structural diversity of lasso peptides.![]()
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Affiliation(s)
- Tan Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University 38 Xueyuan Road, Haidian District Beijing 100191 China
| | - Xiaojie Ma
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University 38 Xueyuan Road, Haidian District Beijing 100191 China
| | - Jiahui Yu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University 38 Xueyuan Road, Haidian District Beijing 100191 China
| | - Wensheng Yang
- School of Medicine, Tongji University 1239 Siping Road Shanghai 200092 China
| | - Guiyang Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University 38 Xueyuan Road, Haidian District Beijing 100191 China
| | - Zhengdong Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University 38 Xueyuan Road, Haidian District Beijing 100191 China
| | - Yuanjie Ge
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University 38 Xueyuan Road, Haidian District Beijing 100191 China
| | - Juan Song
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University 38 Xueyuan Road, Haidian District Beijing 100191 China
| | - Hua Han
- School of Medicine, Tongji University 1239 Siping Road Shanghai 200092 China
| | - Wen Zhang
- School of Medicine, Tongji University 1239 Siping Road Shanghai 200092 China
| | - Donghui Yang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University 38 Xueyuan Road, Haidian District Beijing 100191 China
| | - Xuehui Liu
- CAS Research Platform for Protein Sciences, Institute of Biophysics, Chinese Academy of Sciences 15 Datun Road, Chao-yang District Beijing 100101 China
| | - Ming Ma
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University 38 Xueyuan Road, Haidian District Beijing 100191 China
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8
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How to harness biosynthetic gene clusters of lasso peptides. ACTA ACUST UNITED AC 2020; 47:703-714. [DOI: 10.1007/s10295-020-02292-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 07/14/2020] [Indexed: 02/07/2023]
Abstract
Abstract
Lasso peptides produced by bacteria have a very unique cyclic structure (“lasso” structure) and are resistant to protease. To date, a number of lasso peptides have been isolated from proteobacteria and actinobacteria. Many lasso peptides exhibit various biological activities, such as antibacterial activity, and are expected to have various applications. Based on study of genome mining, large numbers of biosynthetic gene cluster of lasso peptides are revealed to distribute over genomes of proteobacteria and actinobacteria. However, the biosynthetic gene clusters are cryptic in most cases. Therefore, the combination of genome mining and heterologous production is efficient method for the production of lasso peptides. To utilize lasso peptide as fine chemical, there have been several attempts to add new function to lasso peptide by genetic engineering. Currently, a more efficient lasso peptide production system is being developed to harness cryptic biosynthetic gene clusters of lasso peptide. In this review, the overview of lasso peptide study is discussed.
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9
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Cheng C, Hua ZC. Lasso Peptides: Heterologous Production and Potential Medical Application. Front Bioeng Biotechnol 2020; 8:571165. [PMID: 33117783 PMCID: PMC7549694 DOI: 10.3389/fbioe.2020.571165] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/04/2020] [Indexed: 12/15/2022] Open
Abstract
Lasso peptides are natural products found in bacteria. They belong to a specific family of ribosomally-synthesized and posttranslationally-modified peptides with an unusual lasso structure. Lasso peptides possess remarkable thermal and proteolytic stability and various biological activities, such as antimicrobial activity, enzyme inhibition, receptor blocking, anticancer properties and HIV antagonism. They have promising potential therapeutic effects on gastrointestinal diseases, tuberculosis, Alzheimer’s disease, cardiovascular disease, fungal infections and cancer. Lasso peptides with high stability have been shown to be good carriers for other bioactive peptides. These make them attractive candidates for pharmaceutical research. This review aimed to describe the strategies used for the heterologous production of lasso peptides. Also, it indicated their therapeutical potential and their capacity to use as an efficient scaffold for epitope grafting.
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Affiliation(s)
- Cheng Cheng
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Zi-Chun Hua
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China.,School of Biopharmacy, China Pharmaceutical University, Nanjing, China.,Changzhou High-Tech Research Institute of Nanjing University, Changzhou, China.,Jiangsu Target Pharma Laboratories Inc., Changzhou, China
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10
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Cheung-Lee WL, Parry ME, Zong C, Cartagena AJ, Darst SA, Connell ND, Russo R, Link AJ. Discovery of Ubonodin, an Antimicrobial Lasso Peptide Active against Members of the Burkholderia cepacia Complex. Chembiochem 2020; 21:1335-1340. [PMID: 31765515 PMCID: PMC7205569 DOI: 10.1002/cbic.201900707] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Indexed: 11/09/2022]
Abstract
We report the heterologous expression, structure, and antimicrobial activity of a lasso peptide, ubonodin, encoded in the genome of Burkholderia ubonensis. The topology of ubonodin is unprecedented amongst lasso peptides, with 18 of its 28 amino acids found in the mechanically bonded loop segment. Ubonodin inhibits RNA polymerase in vitro and has potent antimicrobial activity against several pathogenic members of the Burkholderia genus, most notably B. cepacia and B. multivorans, causative agents of lung infections in cystic fibrosis patients.
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Affiliation(s)
- Wai Ling Cheung-Lee
- Department of Chemical and Biological Engineering, Princeton University, 207 Hoyt Laboratory, Princeton, NJ, 08544, USA
| | - Madison E Parry
- Department of Chemical and Biological Engineering, Princeton University, 207 Hoyt Laboratory, Princeton, NJ, 08544, USA
| | - Chuhan Zong
- Department of Chemistry, Princeton University, 207 Hoyt Laboratory, Princeton, NJ, 08544, USA
| | - Alexis Jaramillo Cartagena
- Laboratory of Molecular Biophysics and, Tri-Institutional Training Program in Chemical Biology, Rockefeller University, 1230 York Ave., New York, NY, 10065, USA
| | - Seth A Darst
- Laboratory of Molecular Biophysics and, Tri-Institutional Training Program in Chemical Biology, Rockefeller University, 1230 York Ave., New York, NY, 10065, USA
| | - Nancy D Connell
- Center for Health Security, Johns Hopkins Bloomberg School of Public Health, 621 E. Pratt St. Suite 210, Baltimore, MD, 21202, USA
| | - Riccardo Russo
- Center for Emerging Pathogens, Division of Infectious Disease, New Jersey Medical School, Rutgers Biomedical and Health Sciences University, 185 South Orange Ave., Newark, NJ, 07103, USA
| | - A James Link
- Department of Chemical and Biological Engineering, Princeton University, 207 Hoyt Laboratory, Princeton, NJ, 08544, USA
- Department of Chemistry, Princeton University, 207 Hoyt Laboratory, Princeton, NJ, 08544, USA
- Department of Molecular Biology, Princeton University, 207 Hoyt Laboratory, Princeton, NJ, 08544, USA
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11
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Cheung-Lee WL, Cao L, Link AJ. Pandonodin: A Proteobacterial Lasso Peptide with an Exceptionally Long C-Terminal Tail. ACS Chem Biol 2019; 14:2783-2792. [PMID: 31742991 DOI: 10.1021/acschembio.9b00676] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Lasso peptides are a family of ribosomally synthesized and post-translationally modified peptides (RiPPs) defined by their threaded-ring topology. The N-terminus of the peptide forms an isopeptide bond with an aspartate or glutamate side chain to create a 7-9 amino acid (aa) macrocyclic ring through which the rest of the peptide is threaded. The result is a highly constrained three-dimensional structure. Even though they share a threaded-ring feature, characterized lasso peptides vary greatly in sequence and size, ranging from 14 to 26 aa. Using genome mining, we identified a new lasso peptide gene cluster with a predicted lasso peptide that is 33 aa long. Here we report the heterologous expression of this new peptide, pandonodin, its NMR structure, and its unusual biophysical properties. Pandonodin has a long, proteolytically resistant 18-residue tail of low sequence complexity, which limits its water solubility. Within this tail is a 6 aa disulfide-bonded macrocycle that serves as a steric lock to maintain the lasso structure. This disulfide bond is unusually stable, requiring both heat and high concentrations of reductants for cleavage. Finally, we also show that segments of the C-terminal tail of pandonodin can be replaced with arbitrary sequences, allowing for the construction of pandonodin-protein fusions.
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Affiliation(s)
- Wai Ling Cheung-Lee
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Li Cao
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - A. James Link
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
- Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, United States
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12
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Hegemann JD. Factors Governing the Thermal Stability of Lasso Peptides. Chembiochem 2019; 21:7-18. [DOI: 10.1002/cbic.201900364] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Julian D. Hegemann
- Technische Universität BerlinInstitute of Chemistry Strasse des 17. Juni 124/TC2 10623 Berlin Germany
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13
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Cheung-Lee WL, Link AJ. Genome mining for lasso peptides: past, present, and future. J Ind Microbiol Biotechnol 2019; 46:1371-1379. [PMID: 31165971 DOI: 10.1007/s10295-019-02197-z] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 05/23/2019] [Indexed: 01/05/2023]
Abstract
Over the course of roughly a decade, the lasso peptide field has been transformed. Whereas new compounds were discovered infrequently via activity-driven approaches, now, the vast majority of lasso peptide discovery is driven by genome-mining approaches. This paper starts with a historical overview of the first genome-mining approaches for lasso peptide discovery, and then covers new tools that have emerged. Several examples of novel lasso peptides that have been discovered via genome mining are presented as are examples of new enzymes found associated with lasso peptide gene clusters. Finally, this paper concludes with future directions and unsolved challenges in lasso peptide genome mining.
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Affiliation(s)
- Wai Ling Cheung-Lee
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ, 08544, USA
| | - A James Link
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ, 08544, USA. .,Department of Chemistry, Princeton University, Princeton, NJ, 08544, USA. .,Department of Molecular Biology, Princeton University, Princeton, NJ, 08544, USA.
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14
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Koos JD, Link AJ. Heterologous and in Vitro Reconstitution of Fuscanodin, a Lasso Peptide from Thermobifida fusca. J Am Chem Soc 2018; 141:928-935. [PMID: 30532970 DOI: 10.1021/jacs.8b10724] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Lasso peptides are a class of ribosomally derived natural products typified by their threaded rotaxane structure. The conversion of a linear precursor peptide into a lasso peptide structure requires two enzymatic activities: cleavage of the precursor via a cysteine protease and cyclization via isopeptide bond formation. In vitro studies of lasso peptide enzymology have been hampered by difficulties in obtaining pure, soluble enzymes. We reasoned that thermophilic bacteria would be a good source for well-behaved lasso peptide biosynthetic enzymes. The genome of the thermophilic actinobacterium Thermobifida fusca encodes for a lasso peptide with an unprecedented Trp residue at its N-terminus, a peptide we have named fuscanodin. Here we reconstitute fuscanodin biosynthesis in vitro with purified components, establishing a minimal fuscanodin synthetase. These experiments have allowed us to probe the kinetics of lasso peptide biosynthesis for the first time, and we report initial rates of fuscanodin biosynthesis. The fuscanodin biosynthetic enzymes are insensitive to substrate concentration and operate in a near single-turnover regime in vitro. While lasso peptides are often touted for their stability to both chaotropic and thermal challenges, fuscanodin is found to undergo a conformational change consistent with lasso peptide unthreading in organic solvents at room temperature.
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15
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Hegemann JD, Schwalen CJ, Mitchell DA, van der Donk WA. Elucidation of the roles of conserved residues in the biosynthesis of the lasso peptide paeninodin. Chem Commun (Camb) 2018; 54:9007-9010. [PMID: 30046789 DOI: 10.1039/c8cc04411b] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Substrate binding assays, in vitro proteolytic processing assays, and heterologous lasso peptide production were used to investigate the roles of conserved precursor peptide residues during paeninodin maturation. Specifically, we delineate which residues are important for substrate recognition, proteolysis, and lasso peptide macrocyclization.
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Affiliation(s)
- Julian D Hegemann
- Howard Hughes Medical Institute, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave, Urbana, Illinois 61801, USA. and Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave, Urbana, Illinois 61801, USA.
| | - Christopher J Schwalen
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave, Urbana, Illinois 61801, USA. and Carl R. Woese Institute for Genomic Biology, University of Illinois, Urbana, IL 61801, USA
| | - Douglas A Mitchell
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave, Urbana, Illinois 61801, USA. and Carl R. Woese Institute for Genomic Biology, University of Illinois, Urbana, IL 61801, USA
| | - Wilfred A van der Donk
- Howard Hughes Medical Institute, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave, Urbana, Illinois 61801, USA. and Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave, Urbana, Illinois 61801, USA. and Carl R. Woese Institute for Genomic Biology, University of Illinois, Urbana, IL 61801, USA
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16
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Martin-Gómez H, Tulla-Puche J. Lasso peptides: chemical approaches and structural elucidation. Org Biomol Chem 2018; 16:5065-5080. [DOI: 10.1039/c8ob01304g] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The diverse functionality and the extraordinary stability of lasso peptides make these molecules attractive scaffolds for drug discovery. The ability to generate lasso peptides chemically remains a challenging endeavor.
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Affiliation(s)
| | - Judit Tulla-Puche
- Department of Inorganic and Organic Chemistry – Organic Chemistry Section
- University of Barcelona
- Barcelona
- Spain
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17
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Isolation and structure determination of a new lasso peptide subterisin from Sphingomonas subterranea. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.07.064] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Zong C, Wu MJ, Qin JZ, Link AJ. Lasso Peptide Benenodin-1 Is a Thermally Actuated [1]Rotaxane Switch. J Am Chem Soc 2017; 139:10403-10409. [PMID: 28696674 DOI: 10.1021/jacs.7b04830] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Mechanically interlocked molecules that change their conformation in response to stimuli have been developed by synthetic chemists as building blocks for molecular machines. Here we describe a natural product, the lasso peptide benenodin-1, which exhibits conformational switching between two distinct threaded conformers upon actuation by heat. We have determined the structures of both conformers and have characterized the kinetics and energetics of the conformational switch. Single amino acid substitutions to benenodin-1 generate peptides that are biased to a single conformer, showing that the switching behavior is potentially an evolvable trait in these peptides. Lasso peptides such as benenodin-1 can be recognized and cleaved by enzymes called lasso peptide isopeptidases. We show that only the native conformer of benenodin-1 is cleaved by its cognate isopeptidase. Thus, thermally induced conformational switching of benenodin-1 may also be relevant to the biological function of these molecules.
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Affiliation(s)
- Chuhan Zong
- Department of Chemistry, ‡Department of Molecular Biology, and §Department of Chemical and Biological Engineering, Princeton University , Princeton, New Jersey 08544, United States
| | - Michelle J Wu
- Department of Chemistry, ‡Department of Molecular Biology, and §Department of Chemical and Biological Engineering, Princeton University , Princeton, New Jersey 08544, United States
| | - Jason Z Qin
- Department of Chemistry, ‡Department of Molecular Biology, and §Department of Chemical and Biological Engineering, Princeton University , Princeton, New Jersey 08544, United States
| | - A James Link
- Department of Chemistry, ‡Department of Molecular Biology, and §Department of Chemical and Biological Engineering, Princeton University , Princeton, New Jersey 08544, United States
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19
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Chekan JR, Koos JD, Zong C, Maksimov MO, Link AJ, Nair SK. Structure of the Lasso Peptide Isopeptidase Identifies a Topology for Processing Threaded Substrates. J Am Chem Soc 2016; 138:16452-16458. [PMID: 27998080 DOI: 10.1021/jacs.6b10389] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Lasso peptides are a class of bioactive ribosomally synthesized and post-translationally modified peptides (RiPPs), with a threaded knot structure that is formed by an isopeptide bond attaching the N-terminus of the peptide to a side chain carboxylate. Some lasso peptide biosynthetic clusters harbor an enzyme that specifically hydrolyzes the isopeptide bond to yield the linear peptide. We describe here the 2.4 Å resolution structure of a lasso peptide isopeptidase revealing a topologically novel didomain architecture consisting of an open β-propeller appended to an α/β hydrolase domain. The 2.2 Å resolution cocrystal structure of an inactive variant in complex with a lasso peptide reveals deformation of the substrate, and reorganization of the enzyme active site, which exposes and orients the isopeptide bond for hydrolysis. Structure-based mutational analysis reveals how this enzyme recognizes the lasso peptide substrate by shape complementarity rather than through sequence specificity. The isopeptidase gene can be used to facilitate genome mining, as a network-based mining strategy queried with this sequence identified 87 putative lasso peptide biosynthetic clusters, 65 of which have not been previously described. Lastly, we validate this mining approach by heterologous expression of two clusters encoded within the genome of Asticcaucalis benevestitus, and demonstrate that both clusters produce lasso peptides.
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Affiliation(s)
- Jonathan R Chekan
- Department of Biochemistry, ‡Institute for Genomic Biology and §Center for Biophysics and Computational Biology, University of Illinois at Urbana-Champaign , 600 South Mathews Avenue, Urbana, Illinois 61801, United States and.,Departments of Chemical and Biological Engineering, ⊥Molecular Biology, and #Chemistry Princeton University , Princeton, New Jersey 08544, United States
| | - Joseph D Koos
- Department of Biochemistry, ‡Institute for Genomic Biology and §Center for Biophysics and Computational Biology, University of Illinois at Urbana-Champaign , 600 South Mathews Avenue, Urbana, Illinois 61801, United States and.,Departments of Chemical and Biological Engineering, ⊥Molecular Biology, and #Chemistry Princeton University , Princeton, New Jersey 08544, United States
| | - Chuhan Zong
- Department of Biochemistry, ‡Institute for Genomic Biology and §Center for Biophysics and Computational Biology, University of Illinois at Urbana-Champaign , 600 South Mathews Avenue, Urbana, Illinois 61801, United States and.,Departments of Chemical and Biological Engineering, ⊥Molecular Biology, and #Chemistry Princeton University , Princeton, New Jersey 08544, United States
| | - Mikhail O Maksimov
- Department of Biochemistry, ‡Institute for Genomic Biology and §Center for Biophysics and Computational Biology, University of Illinois at Urbana-Champaign , 600 South Mathews Avenue, Urbana, Illinois 61801, United States and.,Departments of Chemical and Biological Engineering, ⊥Molecular Biology, and #Chemistry Princeton University , Princeton, New Jersey 08544, United States
| | - A James Link
- Department of Biochemistry, ‡Institute for Genomic Biology and §Center for Biophysics and Computational Biology, University of Illinois at Urbana-Champaign , 600 South Mathews Avenue, Urbana, Illinois 61801, United States and.,Departments of Chemical and Biological Engineering, ⊥Molecular Biology, and #Chemistry Princeton University , Princeton, New Jersey 08544, United States
| | - Satish K Nair
- Department of Biochemistry, ‡Institute for Genomic Biology and §Center for Biophysics and Computational Biology, University of Illinois at Urbana-Champaign , 600 South Mathews Avenue, Urbana, Illinois 61801, United States and.,Departments of Chemical and Biological Engineering, ⊥Molecular Biology, and #Chemistry Princeton University , Princeton, New Jersey 08544, United States
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20
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Allen CD, Chen MY, Trick AY, Le DT, Ferguson AL, Link AJ. Thermal Unthreading of the Lasso Peptides Astexin-2 and Astexin-3. ACS Chem Biol 2016; 11:3043-3051. [PMID: 27588549 DOI: 10.1021/acschembio.6b00588] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Lasso peptides are a class of knot-like polypeptides in which the C-terminal tail of the peptide threads through a ring formed by an isopeptide bond between the N-terminal amine group and a side chain carboxylic acid. The small size (∼20 amino acids) and simple topology of lasso peptides make them a good model system for studying the unthreading of entangled polypeptides, both with experiments and atomistic simulation. Here, we present an in-depth study of the thermal unthreading behavior of two lasso peptides astexin-2 and astexin-3. Quantitative kinetics and energetics of the unthreading process were determined for variants of these peptides using a series of chromatography and mass spectrometry experiments and biased molecular dynamics (MD) simulations. In addition, we show that the Tyr15Phe variant of astexin-3 unthreads via an unprecedented "tail pulling" mechanism. MD simulations on a model ring-thread system coupled with machine learning approaches also led to the discovery of physicochemical descriptors most important for peptide unthreading.
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Affiliation(s)
- Caitlin D. Allen
- Departments of Chemical and Biological Engineering and ‡Molecular Biology, Princeton University, Princeton, New Jersey 08544, United States
- Department of Materials
Science and Engineering and ∥Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Maria Y. Chen
- Departments of Chemical and Biological Engineering and ‡Molecular Biology, Princeton University, Princeton, New Jersey 08544, United States
- Department of Materials
Science and Engineering and ∥Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Alexander Y. Trick
- Departments of Chemical and Biological Engineering and ‡Molecular Biology, Princeton University, Princeton, New Jersey 08544, United States
- Department of Materials
Science and Engineering and ∥Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Dan Thanh Le
- Departments of Chemical and Biological Engineering and ‡Molecular Biology, Princeton University, Princeton, New Jersey 08544, United States
- Department of Materials
Science and Engineering and ∥Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Andrew L. Ferguson
- Departments of Chemical and Biological Engineering and ‡Molecular Biology, Princeton University, Princeton, New Jersey 08544, United States
- Department of Materials
Science and Engineering and ∥Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - A. James Link
- Departments of Chemical and Biological Engineering and ‡Molecular Biology, Princeton University, Princeton, New Jersey 08544, United States
- Department of Materials
Science and Engineering and ∥Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
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21
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The B1 Protein Guides the Biosynthesis of a Lasso Peptide. Sci Rep 2016; 6:35604. [PMID: 27752134 PMCID: PMC5067487 DOI: 10.1038/srep35604] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 10/03/2016] [Indexed: 02/02/2023] Open
Abstract
Lasso peptides are a class of ribosomally synthesized and post-translationally modified peptides (RiPPs) with a unique lariat knot-like fold that endows them with extraordinary stability and biologically relevant activity. However, the biosynthetic mechanism of these fascinating molecules remains largely speculative. Generally, two enzymes (B for processing and C for cyclization) are required to assemble the unusual knot-like structure. Several subsets of lasso peptide gene clusters feature a "split" B protein on separate open reading frames (B1 and B2), suggesting distinct functions for the B protein in lasso peptide biosynthesis. Herein, we provide new insights into the role of the RiPP recognition element (RRE) PadeB1, characterizing its capacity to bind the paeninodin leader peptide and deliver its peptide substrate to PadeB2 for processing.
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22
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Zhu S, Fage CD, Hegemann JD, Yan D, Marahiel MA. Dual substrate-controlled kinase activity leads to polyphosphorylated lasso peptides. FEBS Lett 2016; 590:3323-3334. [DOI: 10.1002/1873-3468.12386] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 08/10/2016] [Accepted: 08/30/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Shaozhou Zhu
- Department of Chemistry and Biochemistry; Philipps-Universität Marburg; Germany
- State Key Laboratory of Chemical Resources Engineering; Beijing University of Chemical Technology; China
| | - Christopher D. Fage
- Department of Chemistry and Biochemistry; Philipps-Universität Marburg; Germany
| | - Julian D. Hegemann
- Department of Chemistry and Biochemistry; Philipps-Universität Marburg; Germany
| | - Dushan Yan
- Department of Chemistry and Biochemistry; Philipps-Universität Marburg; Germany
| | - Mohamed A. Marahiel
- Department of Chemistry and Biochemistry; Philipps-Universität Marburg; Germany
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23
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Fage CD, Hegemann JD, Nebel AJ, Steinbach RM, Zhu S, Linne U, Harms K, Bange G, Marahiel MA. Structure and Mechanism of the Sphingopyxin I Lasso Peptide Isopeptidase. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Christopher D. Fage
- Fachbereich Chemie; Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische Mikrobiologie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35032 Marburg Germany
| | - Julian D. Hegemann
- Fachbereich Chemie; Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische Mikrobiologie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35032 Marburg Germany
| | - Annika J. Nebel
- Fachbereich Chemie; Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische Mikrobiologie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35032 Marburg Germany
| | - Roman M. Steinbach
- Fachbereich Chemie; Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische Mikrobiologie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35032 Marburg Germany
| | - Shaozhou Zhu
- Fachbereich Chemie; Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische Mikrobiologie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35032 Marburg Germany
| | - Uwe Linne
- Fachbereich Chemie; Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische Mikrobiologie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35032 Marburg Germany
| | - Klaus Harms
- Fachbereich Chemie; Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische Mikrobiologie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35032 Marburg Germany
| | - Gert Bange
- Fachbereich Chemie; Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische Mikrobiologie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35032 Marburg Germany
| | - Mohamed A. Marahiel
- Fachbereich Chemie; Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische Mikrobiologie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35032 Marburg Germany
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24
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Fage CD, Hegemann JD, Nebel AJ, Steinbach RM, Zhu S, Linne U, Harms K, Bange G, Marahiel MA. Structure and Mechanism of the Sphingopyxin I Lasso Peptide Isopeptidase. Angew Chem Int Ed Engl 2016; 55:12717-21. [DOI: 10.1002/anie.201605232] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2016] [Revised: 07/21/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Christopher D. Fage
- Fachbereich Chemie; Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische Mikrobiologie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35032 Marburg Germany
| | - Julian D. Hegemann
- Fachbereich Chemie; Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische Mikrobiologie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35032 Marburg Germany
| | - Annika J. Nebel
- Fachbereich Chemie; Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische Mikrobiologie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35032 Marburg Germany
| | - Roman M. Steinbach
- Fachbereich Chemie; Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische Mikrobiologie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35032 Marburg Germany
| | - Shaozhou Zhu
- Fachbereich Chemie; Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische Mikrobiologie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35032 Marburg Germany
| | - Uwe Linne
- Fachbereich Chemie; Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische Mikrobiologie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35032 Marburg Germany
| | - Klaus Harms
- Fachbereich Chemie; Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische Mikrobiologie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35032 Marburg Germany
| | - Gert Bange
- Fachbereich Chemie; Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische Mikrobiologie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35032 Marburg Germany
| | - Mohamed A. Marahiel
- Fachbereich Chemie; Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische Mikrobiologie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35032 Marburg Germany
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25
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Deane CD, Burkhart BJ, Blair PM, Tietz JI, Lin A, Mitchell DA. In Vitro Biosynthesis and Substrate Tolerance of the Plantazolicin Family of Natural Products. ACS Chem Biol 2016; 11:2232-43. [PMID: 27248686 PMCID: PMC4992447 DOI: 10.1021/acschembio.6b00369] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Plantazolicin (PZN) is a ribosomally synthesized and post-translationally modified peptide (RiPP) natural product that exhibits extraordinarily narrow-spectrum antibacterial activity toward the causative agent of anthrax, Bacillus anthracis. During PZN biosynthesis, a cyclodehydratase catalyzes cyclization of cysteine, serine, and threonine residues in the PZN precursor peptide (BamA) to azolines. Subsequently, a dehydrogenase oxidizes most of these azolines to thiazoles and (methyl)oxazoles. The final biosynthetic steps consist of leader peptide removal and dimethylation of the nascent N-terminus. Using a heterologously expressed and purified heterocycle synthetase, the BamA peptide was processed in vitro concordant with the pattern of post-translational modification found in the naturally occurring compound. Using a suite of BamA-derived peptides, including amino acid substitutions as well as contracted and expanded substrate variants, the substrate tolerance of the heterocycle synthetase was elucidated in vitro, and the residues crucial for leader peptide binding were identified. Despite increased promiscuity compared to what was previously observed during heterologous production in E. coli, the synthetase retained exquisite selectivity in cyclization of unnatural peptides only at positions which correspond to those cyclized in the natural product. A cleavage site was subsequently introduced to facilitate leader peptide removal, yielding mature PZN variants after enzymatic or chemical dimethylation. In addition, we report the isolation and characterization of two novel PZN-like natural products that were predicted from genome sequences but whose production had not yet been observed.
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Affiliation(s)
- Caitlin D. Deane
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Brandon J. Burkhart
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Patricia M. Blair
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Jonathan I. Tietz
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Alice Lin
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Douglas A. Mitchell
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Department of Microbiology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
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26
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Zhu S, Hegemann JD, Fage CD, Zimmermann M, Xie X, Linne U, Marahiel MA. Insights into the Unique Phosphorylation of the Lasso Peptide Paeninodin. J Biol Chem 2016; 291:13662-78. [PMID: 27151214 DOI: 10.1074/jbc.m116.722108] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Indexed: 11/06/2022] Open
Abstract
Lasso peptides are a new class of ribosomally synthesized and post-translationally modified peptides and thus far are only isolated from proteo- and actinobacterial sources. Typically, lasso peptide biosynthetic gene clusters encode enzymes for biosynthesis and export but not for tailoring. Here, we describe the isolation of the novel lasso peptide paeninodin from the firmicute Paenibacillus dendritiformis C454 and reveal within its biosynthetic cluster a gene encoding a kinase, which we have characterized as a member of a new class of lasso peptide-tailoring kinases. By employing a wide variety of peptide substrates, it was shown that this novel type of kinase specifically phosphorylates the C-terminal serine residue while ignoring those located elsewhere. These experiments also reveal that no other recognition motif is needed for efficient enzymatic phosphorylation of the C-terminal serine. Furthermore, through comparison with homologous HPr kinases and subsequent mutational analysis, we confirmed the essential catalytic residues. Our study reveals how lasso peptides are chemically diversified and sets the foundation for rational engineering of these intriguing natural products.
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Affiliation(s)
- Shaozhou Zhu
- From the Department of Chemistry/Biochemistry, LOEWE Center for Synthetic Microbiology, Philipps-Universität Marburg, 35032 Marburg, Germany
| | - Julian D Hegemann
- From the Department of Chemistry/Biochemistry, LOEWE Center for Synthetic Microbiology, Philipps-Universität Marburg, 35032 Marburg, Germany
| | - Christopher D Fage
- From the Department of Chemistry/Biochemistry, LOEWE Center for Synthetic Microbiology, Philipps-Universität Marburg, 35032 Marburg, Germany
| | - Marcel Zimmermann
- From the Department of Chemistry/Biochemistry, LOEWE Center for Synthetic Microbiology, Philipps-Universität Marburg, 35032 Marburg, Germany
| | - Xiulan Xie
- From the Department of Chemistry/Biochemistry, LOEWE Center for Synthetic Microbiology, Philipps-Universität Marburg, 35032 Marburg, Germany
| | - Uwe Linne
- From the Department of Chemistry/Biochemistry, LOEWE Center for Synthetic Microbiology, Philipps-Universität Marburg, 35032 Marburg, Germany
| | - Mohamed A Marahiel
- From the Department of Chemistry/Biochemistry, LOEWE Center for Synthetic Microbiology, Philipps-Universität Marburg, 35032 Marburg, Germany
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