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Dashti Y, Mohammadipanah F, Zhang Y, Cerqueira Diaz PM, Vocat A, Zabala D, Fage CD, Romero-Canelon I, Bunk B, Spröer C, Alkhalaf LM, Overmann J, Cole ST, Challis GL. Discovery and Biosynthesis of Persiathiacins: Unusual Polyglycosylated Thiopeptides Active Against Multidrug Resistant Tuberculosis. ACS Infect Dis 2024; 10:3378-3391. [PMID: 39189814 PMCID: PMC11406533 DOI: 10.1021/acsinfecdis.4c00502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/28/2024]
Abstract
Thiopeptides are ribosomally biosynthesized and post-translationally modified peptides (RiPPs) that potently inhibit the growth of Gram-positive bacteria by targeting multiple steps in protein biosynthesis. The poor pharmacological properties of thiopeptides, particularly their low aqueous solubility, has hindered their development into clinically useful antibiotics. Antimicrobial activity screens of a library of Actinomycetota extracts led to discovery of the novel polyglycosylated thiopeptides persiathiacins A and B from Actinokineospora sp. UTMC 2448. Persiathiacin A is active against methicillin-resistant Staphylococcus aureus and several Mycobacterium tuberculosis strains, including drug-resistant and multidrug-resistant clinical isolates, and does not significantly affect the growth of ovarian cancer cells at concentrations up to 400 μM. Polyglycosylated thiopeptides are extremely rare and nothing is known about their biosynthesis. Sequencing and analysis of the Actinokineospora sp. UTMC 2448 genome enabled identification of the putative persiathiacin biosynthetic gene cluster (BGC). A cytochrome P450 encoded by this gene cluster catalyzes the hydroxylation of nosiheptide in vitro and in vivo, consistent with the proposal that the cluster directs persiathiacin biosynthesis. Several genes in the cluster encode homologues of enzymes known to catalyze the assembly and attachment of deoxysugars during the biosynthesis of other classes of glycosylated natural products. One of these encodes a glycosyl transferase that was shown to catalyze attachment of a D-glucose residue to nosiheptide in vitro. The discovery of the persiathiacins and their BGC thus provides the basis for the development of biosynthetic engineering approaches to the creation of novel (poly)glycosylated thiopeptide derivatives with enhanced pharmacological properties.
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Affiliation(s)
- Yousef Dashti
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
- Sydney Infectious Diseases Institute, Faculty of Medicine and Health, University of Sydney, Sydney NSW 2015, Australia
| | - Fatemeh Mohammadipanah
- Pharmaceutical Biotechnology Lab, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, 14155-6455 Tehran, Iran
| | - Yu Zhang
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | | | - Anthony Vocat
- Global Health Institute, Ecole Polytechnique Fédérale de Lausanne, Station 19, 1015 Lausanne, Switzerland
| | - Daniel Zabala
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | | | - Isolda Romero-Canelon
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
- School of Pharmacy, Institute of Clinical Sciences, University of Birmingham, Birmingham B15 2TT, U.K
| | - Boyke Bunk
- Leibniz-Institute DSMZ-German Collection of Microorganisms and Cell Cultures, 38124 Braunschweig, Germany
- Technical University of Braunschweig, 38106 Braunschweig, Germany
| | - Cathrin Spröer
- Leibniz-Institute DSMZ-German Collection of Microorganisms and Cell Cultures, 38124 Braunschweig, Germany
- Technical University of Braunschweig, 38106 Braunschweig, Germany
| | - Lona M Alkhalaf
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | - Jörg Overmann
- Leibniz-Institute DSMZ-German Collection of Microorganisms and Cell Cultures, 38124 Braunschweig, Germany
- Technical University of Braunschweig, 38106 Braunschweig, Germany
- German Centre of Infection Research (DZIF), Partner Site Hannover-Braunschweig, 38124 Braunschweig, Germany
| | - Stewart T Cole
- Global Health Institute, Ecole Polytechnique Fédérale de Lausanne, Station 19, 1015 Lausanne, Switzerland
| | - Gregory L Challis
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
- Warwick Integrative Synthetic Biology Centre, University of Warwick, Coventry CV4 7AL, U.K
- Department of Biochemistry and Molecular Biology, Monash University, Clayton VIC 3168, Australia
- ARC Centre of Excellence for Innovations in Peptide and Protein Science, Monash University, Clayton VIC 3168, Australia
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2
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Yin Y, Ji X, Zhang Q. The Promiscuous Activity of the Radical
SAM
Enzyme
NosL
toward Two Unnatural Substrates. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100304] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yue Yin
- Department of Chemistry Fudan University Shanghai 200433 China
| | - Xinjian Ji
- Department of Chemistry Fudan University Shanghai 200433 China
| | - Qi Zhang
- Department of Chemistry Fudan University Shanghai 200433 China
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3
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Blue TC, Davis KM. Computational Approaches: An Underutilized Tool in the Quest to Elucidate Radical SAM Dynamics. Molecules 2021; 26:molecules26092590. [PMID: 33946806 PMCID: PMC8124187 DOI: 10.3390/molecules26092590] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/22/2021] [Accepted: 04/26/2021] [Indexed: 12/30/2022] Open
Abstract
Enzymes are biological catalysts whose dynamics enable their reactivity. Visualizing conformational changes, in particular, is technically challenging, and little is known about these crucial atomic motions. This is especially problematic for understanding the functional diversity associated with the radical S-adenosyl-L-methionine (SAM) superfamily whose members share a common radical mechanism but ultimately catalyze a broad range of challenging reactions. Computational chemistry approaches provide a readily accessible alternative to exploring the time-resolved behavior of these enzymes that is not limited by experimental logistics. Here, we review the application of molecular docking, molecular dynamics, and density functional theory, as well as hybrid quantum mechanics/molecular mechanics methods to the study of these enzymes, with a focus on understanding the mechanistic dynamics associated with turnover.
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4
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5
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Zhang Q, Zhang J, Gavathiotis E. ICBS 2017 in Shanghai-Illuminating Life with Chemical Innovation. ACS Chem Biol 2018; 13:1111-1122. [PMID: 29677443 PMCID: PMC6855916 DOI: 10.1021/acschembio.8b00220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Qi Zhang
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Jingyu Zhang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Evripidis Gavathiotis
- Department of Biochemistry, Department of Medicine, Albert Einstein College of Medicine, New York 10461, United States
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6
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Bhandari DM, Fedoseyenko D, Begley TP. Mechanistic Studies on Tryptophan Lyase (NosL): Identification of Cyanide as a Reaction Product. J Am Chem Soc 2018; 140:542-545. [PMID: 29232124 PMCID: PMC6078386 DOI: 10.1021/jacs.7b09000] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tryptophan lyase (NosL) catalyzes the formation of 3-methylindole-2-carboxylic acid and 3-methylindole from l-tryptophan. In this paper, we provide evidence supporting a formate radical intermediate and demonstrate that cyanide is a byproduct of the NosL-catalyzed reaction with l-tryptophan. These experiments require a major revision of the NosL mechanism and uncover an unanticipated connection between NosL and HydG, the radical SAM enzyme that forms cyanide and carbon monoxide from tyrosine during the biosynthesis of the metallo-cluster of the [Fe-Fe] hydrogenase.
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Affiliation(s)
- Dhananjay M. Bhandari
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Dmytro Fedoseyenko
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Tadhg P. Begley
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
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7
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Benjdia A, Balty C, Berteau O. Radical SAM Enzymes in the Biosynthesis of Ribosomally Synthesized and Post-translationally Modified Peptides (RiPPs). Front Chem 2017; 5:87. [PMID: 29167789 PMCID: PMC5682303 DOI: 10.3389/fchem.2017.00087] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 10/11/2017] [Indexed: 11/13/2022] Open
Abstract
Ribosomally-synthesized and post-translationally modified peptides (RiPPs) are a large and diverse family of natural products. They possess interesting biological properties such as antibiotic or anticancer activities, making them attractive for therapeutic applications. In contrast to polyketides and non-ribosomal peptides, RiPPs derive from ribosomal peptides and are post-translationally modified by diverse enzyme families. Among them, the emerging superfamily of radical SAM enzymes has been shown to play a major role. These enzymes catalyze the formation of a wide range of post-translational modifications some of them having no counterparts in living systems or synthetic chemistry. The investigation of radical SAM enzymes has not only illuminated unprecedented strategies used by living systems to tailor peptides into complex natural products but has also allowed to uncover novel RiPP families. In this review, we summarize the current knowledge on radical SAM enzymes catalyzing RiPP post-translational modifications and discuss their mechanisms and growing importance notably in the context of the human microbiota.
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Affiliation(s)
- Alhosna Benjdia
- Micalis Institute, ChemSyBio, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Clémence Balty
- Micalis Institute, ChemSyBio, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Olivier Berteau
- Micalis Institute, ChemSyBio, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
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8
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Mahanta N, Hudson GA, Mitchell DA. Radical S-Adenosylmethionine Enzymes Involved in RiPP Biosynthesis. Biochemistry 2017; 56:5229-5244. [PMID: 28895719 DOI: 10.1021/acs.biochem.7b00771] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Ribosomally synthesized and post-translationally modified peptides (RiPPs) display a diverse range of structures and continue to expand as a natural product class. Accordingly, RiPPs exhibit a wide array of bioactivities, acting as broad and narrow spectrum growth suppressors, antidiabetics, and antinociception and anticancer agents. Because of these properties, and the complex repertoire of post-translational modifications (PTMs) that give rise to these molecules, RiPP biosynthesis has been intensely studied. RiPP biosynthesis often involves enzymes that perform unique chemistry with intriguing reaction mechanisms, which attract chemists and biochemists alike to study and re-engineer these pathways. One particular type of RiPP biosynthetic enzyme is the so-called radical S-adenosylmethionine (rSAM) enzyme, which utilizes radical-based chemistry to install several distinct PTMs. Here, we describe the rSAM enzymes characterized over the past decade that catalyze six reaction types from several RiPP biosynthetic pathways. We present the current state of mechanistic understanding and conclude with possible directions for future characterization of this enzyme family.
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Affiliation(s)
- Nilkamal Mahanta
- Department of Chemistry, University of Illinois at Urbana-Champaign , 600 South Mathews Avenue, Urbana, Illinois 61801, United States.,Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign , 1206 West Gregory Drive, Urbana, Illinois 61801, United States
| | - Graham A Hudson
- Department of Chemistry, University of Illinois at Urbana-Champaign , 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Douglas A Mitchell
- Department of Chemistry, University of Illinois at Urbana-Champaign , 600 South Mathews Avenue, Urbana, Illinois 61801, United States.,Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign , 1206 West Gregory Drive, Urbana, Illinois 61801, United States
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9
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Ding W, Ji W, Wu Y, Wu R, Liu WQ, Mo T, Zhao J, Ma X, Zhang W, Xu P, Deng Z, Tang B, Yu Y, Zhang Q. Biosynthesis of the nosiheptide indole side ring centers on a cryptic carrier protein NosJ. Nat Commun 2017; 8:437. [PMID: 28874663 PMCID: PMC5585349 DOI: 10.1038/s41467-017-00439-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 06/28/2017] [Indexed: 01/10/2023] Open
Abstract
Nosiheptide is a prototypal thiopeptide antibiotic, containing an indole side ring in addition to its thiopeptide-characteristic macrocylic scaffold. This indole ring is derived from 3-methyl-2-indolic acid (MIA), a product of the radical S-adenosylmethionine enzyme NosL, but how MIA is incorporated into nosiheptide biosynthesis remains to be investigated. Here we report functional dissection of a series of enzymes involved in nosiheptide biosynthesis. We show NosI activates MIA and transfers it to the phosphopantetheinyl arm of a carrier protein NosJ. NosN then acts on the NosJ-bound MIA and installs a methyl group on the indole C4, and the resulting dimethylindolyl moiety is released from NosJ by a hydrolase-like enzyme NosK. Surface plasmon resonance analysis show that the molecular complex of NosJ with NosN is much more stable than those with other enzymes, revealing an elegant biosynthetic strategy in which the reaction flux is controlled by protein-protein interactions with different binding affinities.Thiopeptides such as nosiheptide are clinically-interesting antimicrobial natural products. Here the authors show the functional dissection of a series of enzymes involved in nosiheptide biosynthesis, revealing a unique biosynthetic pathway that centers on a previously-unknown carrier protein.
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Affiliation(s)
- Wei Ding
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Bioagriculture, Yancheng Teachers University, Yancheng, 224002, China.,Department of Chemistry, Fudan University, Shanghai, 200433, China.,Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.,Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Northwest Institute of Eco-environment and Resource, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Wenjuan Ji
- Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Yujie Wu
- Department of Chemistry, Fudan University, Shanghai, 200433, China.,Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Runze Wu
- Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Wan-Qiu Liu
- Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Tianlu Mo
- Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Junfeng Zhao
- Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Xiaoyan Ma
- Department of Chemistry, Fudan University, Shanghai, 200433, China.,Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Wei Zhang
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Northwest Institute of Eco-environment and Resource, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Ping Xu
- State Key Laboratory of Proteomics, National Center for Protein Sciences, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, 102206, China
| | - Zixin Deng
- Key Laboratory of Combinatory Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Boping Tang
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Bioagriculture, Yancheng Teachers University, Yancheng, 224002, China.
| | - Yi Yu
- Key Laboratory of Combinatory Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China.
| | - Qi Zhang
- Department of Chemistry, Fudan University, Shanghai, 200433, China.
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10
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The Catalytic Mechanism of the Class C Radical S
-Adenosylmethionine Methyltransferase NosN. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201609948] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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11
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Ding W, Li Y, Zhao J, Ji X, Mo T, Qianzhu H, Tu T, Deng Z, Yu Y, Chen F, Zhang Q. The Catalytic Mechanism of the Class C Radical S-Adenosylmethionine Methyltransferase NosN. Angew Chem Int Ed Engl 2017; 56:3857-3861. [PMID: 28112859 DOI: 10.1002/anie.201609948] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 12/15/2016] [Indexed: 12/23/2022]
Abstract
S-Adenosylmethionine (SAM) is one of the most common co-substrates in enzyme-catalyzed methylation reactions. Most SAM-dependent reactions proceed through an SN 2 mechanism, whereas a subset of them involves radical intermediates for methylating non-nucleophilic substrates. Herein, we report the characterization and mechanistic investigation of NosN, a class C radical SAM methyltransferase involved in the biosynthesis of the thiopeptide antibiotic nosiheptide. We show that, in contrast to all known SAM-dependent methyltransferases, NosN does not produce S-adenosylhomocysteine (SAH) as a co-product. Instead, NosN converts SAM into 5'-methylthioadenosine as a direct methyl donor, employing a radical-based mechanism for methylation and releasing 5'-thioadenosine as a co-product. A series of biochemical and computational studies allowed us to propose a comprehensive mechanism for NosN catalysis, which represents a new paradigm for enzyme-catalyzed methylation reactions.
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Affiliation(s)
- Wei Ding
- Department of Chemistry, Fudan University, Shanghai, 200433, China.,School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Yongzhen Li
- Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Junfeng Zhao
- Department of Chemistry, Fudan University, Shanghai, 200433, China.,Key Laboratory of Combinatory Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Xinjian Ji
- Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Tianlu Mo
- Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Haocheng Qianzhu
- Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Tao Tu
- Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Zixin Deng
- Key Laboratory of Combinatory Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Yi Yu
- Key Laboratory of Combinatory Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Fener Chen
- Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Qi Zhang
- Department of Chemistry, Fudan University, Shanghai, 200433, China
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12
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Wang X, Zhu W, Liu Y. Tryptophan lyase (NosL): mechanistic insights into amine dehydrogenation and carboxyl fragment migration by QM/MM calculations. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00573c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
QM/MM calculations suggest two feasible pathways for the breaking of the C–C bond of the substrate. The breaking of the Cα–Cβ bond leads to the final product, whereas the cleavage of the Cα–C bond will terminate in the EPR-trapped radical intermediate.
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Affiliation(s)
- Xiya Wang
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
- China
| | - Wenyou Zhu
- College of Chemistry and Chemical Engineering
- Xuzhou Institute of Technology
- Xuzhou
- China
| | - Yongjun Liu
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
- China
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13
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Liu L, Ji X, Li Y, Ji W, Mo T, Ding W, Zhang Q. A mechanistic study of the non-oxidative decarboxylation catalyzed by the radical S-adenosyl-l-methionine enzyme BlsE involved in blasticidin S biosynthesis. Chem Commun (Camb) 2017; 53:8952-8955. [DOI: 10.1039/c7cc04286h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BlsE-catalyzed non-oxidative decarboxylation is initiated by a hydrogen abstraction from a sugar carbon of the substrate cytosylglucuronic acid (CGA).
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Affiliation(s)
- Lei Liu
- College of Life Science & Biotechnology
- Mianyang Normal University
- Mianyang 621000
- P. R. China
- Department of Chemistry
| | - Xinjian Ji
- Department of Chemistry
- Fudan University
- Shanghai
- China
| | - Yongzhen Li
- Department of Chemistry
- Fudan University
- Shanghai
- China
- Medical College of Qinghai University
| | - Wenjuan Ji
- Department of Chemistry
- Fudan University
- Shanghai
- China
| | - Tianlu Mo
- Department of Chemistry
- Fudan University
- Shanghai
- China
| | - Wei Ding
- Department of Chemistry
- Fudan University
- Shanghai
- China
| | - Qi Zhang
- Department of Chemistry
- Fudan University
- Shanghai
- China
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14
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Ding W, Wu Y, Ji X, Qianzhu H, Chen F, Deng Z, Yu Y, Zhang Q. Nucleoside-linked shunt products in the reaction catalyzed by the class C radical S-adenosylmethionine methyltransferase NosN. Chem Commun (Camb) 2017; 53:5235-5238. [DOI: 10.1039/c7cc02162c] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A series of nucleoside-linked shunt products have been identified in reactions catalyzed by NosN, a class C radical S-adenosylmethionine (SAM) methyltransferase, providing strong evidence supporting that 5′-methylthioadenosine (MTA) is a direct methyl donor in this reaction.
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Affiliation(s)
- Wei Ding
- School of Life Sciences
- Lanzhou University
- Lanzhou
- China
- Department of Chemistry
| | - Yujie Wu
- School of Life Sciences
- Lanzhou University
- Lanzhou
- China
- Department of Chemistry
| | - Xinjian Ji
- Department of Chemistry
- Fudan University
- Shanghai
- China
| | | | - Fener Chen
- Department of Chemistry
- Fudan University
- Shanghai
- China
| | - Zixin Deng
- Key Laboratory of Combinatory Biosynthesis and Drug Discovery (Ministry of Education)
- School of Pharmaceutical Sciences
- Wuhan University
- Wuhan
- China
| | - Yi Yu
- Key Laboratory of Combinatory Biosynthesis and Drug Discovery (Ministry of Education)
- School of Pharmaceutical Sciences
- Wuhan University
- Wuhan
- China
| | - Qi Zhang
- Department of Chemistry
- Fudan University
- Shanghai
- China
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