1
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Hauke M, Metz F, Rapp J, Faass L, Bats SH, Radziej S, Link H, Eisenreich W, Josenhans C. Helicobacter pylori Modulates Heptose Metabolite Biosynthesis and Heptose-Dependent Innate Immune Host Cell Activation by Multiple Mechanisms. Microbiol Spectr 2023; 11:e0313222. [PMID: 37129481 PMCID: PMC10269868 DOI: 10.1128/spectrum.03132-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 04/05/2023] [Indexed: 05/03/2023] Open
Abstract
Heptose metabolites including ADP-d-glycero-β-d-manno-heptose (ADP-heptose) are involved in bacterial lipopolysaccharide and cell envelope biosynthesis. Recently, heptoses were also identified to have potent proinflammatory activity on human cells as novel microbe-associated molecular patterns. The gastric pathogenic bacterium Helicobacter pylori produces heptose metabolites, which it transports into human cells through its Cag type 4 secretion system. Using H. pylori as a model, we have addressed the question of how proinflammatory ADP-heptose biosynthesis can be regulated by bacteria. We have characterized the interstrain variability and regulation of heptose biosynthesis genes and the modulation of heptose metabolite production by H. pylori, which impact cell-autonomous proinflammatory human cell activation. HldE, a central enzyme of heptose metabolite biosynthesis, showed strong sequence variability between strains and was also variably expressed between strains. Amounts of gene transcripts in the hldE gene cluster displayed intrastrain and interstrain differences, were modulated by host cell contact and the presence of the cag pathogenicity island, and were affected by carbon starvation regulator A (CsrA). We reconstituted four steps of the H. pylori lipopolysaccharide (LPS) heptose biosynthetic pathway in vitro using recombinant purified GmhA, HldE, and GmhB proteins. On the basis of one- and two-dimensional nuclear magnetic resonance (NMR) spectroscopy and mass spectrometry, the structures of major reaction products were identified as β-d-ADP-heptose and β-heptose-1-monophosphate. A proinflammatory heptose-monophosphate variant was also identified for the first time as a novel cell-active product in H. pylori bacteria. Separate purified HldE subdomains and variant HldE allowed us to uncover additional strain variation in generating heptose metabolites. IMPORTANCE Bacterial heptose metabolites, intermediates of lipopolysaccharide (LPS) biosynthesis, are novel microbe-associated molecular patterns (MAMPs) that activate proinflammatory signaling. In the gastric pathogen Helicobacter pylori, heptoses are transferred into host cells by the Cag type IV secretion system, which is also involved in carcinogenesis. Little is known about how H. pylori, which is highly strain variable, regulates heptose biosynthesis and downstream host cell activation. We report here that the regulation of proinflammatory heptose production by H. pylori is strain specific. Heptose gene cluster activity is modulated by the presence of an active cag pathogenicity island (cagPAI), contact with human cells, and the carbon starvation regulator A. Reconstitution with purified biosynthesis enzymes and purified bacterial lysates allowed us to biochemically characterize heptose pathway products, identifying a heptose-monophosphate variant as a novel proinflammatory metabolite. These findings emphasize that the bacteria use heptose biosynthesis to fine-tune inflammation and also highlight opportunities to mine the heptose biosynthesis pathway as a potential therapeutic target against infection, inflammation, and cancer.
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Affiliation(s)
- Martina Hauke
- Max von Pettenkofer Institute, Ludwig Maximilians University Munich, München, Germany
| | - Felix Metz
- Max von Pettenkofer Institute, Ludwig Maximilians University Munich, München, Germany
| | - Johanna Rapp
- Bacterial Metabolomics, CMFI, University Tübingen, Tübingen, Germany
| | - Larissa Faass
- Max von Pettenkofer Institute, Ludwig Maximilians University Munich, München, Germany
| | - Simon H. Bats
- Max von Pettenkofer Institute, Ludwig Maximilians University Munich, München, Germany
| | - Sandra Radziej
- Bavarian NMR Center–Structural Membrane Biochemistry, Department of Chemistry, Technical University Munich, Garching, Germany
| | - Hannes Link
- Bacterial Metabolomics, CMFI, University Tübingen, Tübingen, Germany
| | - Wolfgang Eisenreich
- Bavarian NMR Center–Structural Membrane Biochemistry, Department of Chemistry, Technical University Munich, Garching, Germany
| | - Christine Josenhans
- Max von Pettenkofer Institute, Ludwig Maximilians University Munich, München, Germany
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2
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Li X, Liao C, Xu Y, Lu QH, Chen S, Su L, Zou Y, Shao F, Lu W, Zhang WD, Hu HG. Configuration-Specific Antibody for Bacterial Heptosylation: An Antiadhesion Therapeutic Strategy. J Am Chem Soc 2023; 145:322-333. [PMID: 36542493 DOI: 10.1021/jacs.2c09990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Alternative antibacterial therapies refractory to existing mechanisms of antibiotic resistance are urgently needed. One such attractive therapy is to inhibit bacterial adhesion and colonization. Ser O-heptosylation (Ser O-Hep) on autotransporters of Gram-negative bacteria is a novel glycosylation and has been proven to be essential for bacterial colonization. Herein, we chemically synthesized glycopeptides containing this atypical glycan structure and an absolute C6 configuration through the assembly of Ser O-Hep building blocks. Using glycopeptides as haptens, we generated first-in-class poly- and monoclonal antibodies, termed Anti-SerHep1a and Anti-SerHep1b, that stereoselectively recognize Ser O-heptosylation (d/l-glycero) with high specificity in vitro and in vivo. Importantly, these antibodies effectively blocked diffusely adhering Escherichia coli 2787 adhesion to HeLa cells and in mice in a dose- and Ser O-Hep-dependent manner. Together, these antibodies represent not only useful tools for the discovery of unknown serine O-heptosylated proteins bearing various C6 chiral centers but also a novel class of antiadhesion therapeutic agents for the treatment of bacterial infection.
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Affiliation(s)
- Xiang Li
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China.,School of Medicine or Institute of Translational Medicine, Shanghai University, Shanghai 200444, China
| | - Chongbing Liao
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Science, and Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai 200032, China
| | - Yue Xu
- National Institute of Biological Sciences, Beijing 102206, China
| | - Qiu-He Lu
- National Institute of Biological Sciences, Beijing 102206, China
| | - Si Chen
- School of Medicine or Institute of Translational Medicine, Shanghai University, Shanghai 200444, China
| | - Li Su
- School of Medicine or Institute of Translational Medicine, Shanghai University, Shanghai 200444, China
| | - Yan Zou
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Feng Shao
- National Institute of Biological Sciences, Beijing 102206, China
| | - Wuyuan Lu
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Science, and Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai 200032, China
| | - Wei-Dong Zhang
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Hong-Gang Hu
- School of Medicine or Institute of Translational Medicine, Shanghai University, Shanghai 200444, China
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3
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Nagy L, Urbán P, Makszin L, Sándor V, Kilár A, Ábrahám H, Albert B, Kocsis B, Kilár F. The Effect of Mutation in Lipopolysaccharide Biosynthesis on Bacterial Fitness. Cells 2022; 11:cells11203249. [PMID: 36291117 PMCID: PMC9600226 DOI: 10.3390/cells11203249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 09/15/2022] [Accepted: 10/14/2022] [Indexed: 11/28/2022] Open
Abstract
This paper presents the genome sequence of a Shigella sonnei mutant strain (S. sonnei 4351) and the effect of mutation in lipopolysaccharide biosynthesis on bacterial fitness. Lipopolysaccharides are the major component of the outer leaflet of the Gram-negative outer membrane. We report here a frameshift mutation of the gene gmhD in the genome of S. sonnei 4351. The mutation results in a lack of epimerization of the core heptose while we also found increased thermosensitivity, abnormal cell division, and increased susceptibility to erythromycin and cefalexin compared to the S. sonnei 4303. Comparative genomic analysis supplemented with structural data helps us to understand the effect of specific mutations on the virulence of the bacteria and may provide an opportunity to study the effect of short lipopolysaccharides.
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Affiliation(s)
- Laura Nagy
- Institute of Bioanalysis, Medical School, University of Pécs, Szigeti út 12, 7624 Pécs, Hungary
- Szentágothai Research Center, University of Pécs, Ifjúság útja 20, 7624 Pécs, Hungary
- Correspondence: (L.N.); (F.K.)
| | - Péter Urbán
- Szentágothai Research Center, University of Pécs, Ifjúság útja 20, 7624 Pécs, Hungary
| | - Lilla Makszin
- Institute of Bioanalysis, Medical School, University of Pécs, Szigeti út 12, 7624 Pécs, Hungary
| | - Viktor Sándor
- Institute of Bioanalysis, Medical School, University of Pécs, Szigeti út 12, 7624 Pécs, Hungary
- Szentágothai Research Center, University of Pécs, Ifjúság útja 20, 7624 Pécs, Hungary
| | - Anikó Kilár
- Institute of Bioanalysis, Medical School, University of Pécs, Szigeti út 12, 7624 Pécs, Hungary
- Szentágothai Research Center, University of Pécs, Ifjúság útja 20, 7624 Pécs, Hungary
| | - Hajnalka Ábrahám
- Department of Medical Biology and Central Electron Microscope Laboratory, Medical School, University of Pécs, Szigeti út 12, 7624 Pécs, Hungary
| | - Beáta Albert
- Department of Bioengineering, Sapientia Hungarian University of Transylvania, Libertăţii Sq. 1, 530104 Miercurea Ciuc, Romania
| | - Béla Kocsis
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, Szigeti út 12, 7624 Pécs, Hungary
| | - Ferenc Kilár
- Institute of Bioanalysis, Medical School, University of Pécs, Szigeti út 12, 7624 Pécs, Hungary
- Department of Bioengineering, Sapientia Hungarian University of Transylvania, Libertăţii Sq. 1, 530104 Miercurea Ciuc, Romania
- Correspondence: (L.N.); (F.K.)
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4
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Meng S, Hettiarachchi IL, Bhetuwal BR, Thapa P, Zhu J. Stereoselective Synthesis of β-d-Manno-heptopyranoside via Cs 2CO 3-Mediated Anomeric O-Alkylation: Synthesis of a Tetrasaccharide Repeat Unit of Bacillus thermoaerophilus Surface-Layer Glycoprotein. J Org Chem 2022; 87:6588-6600. [PMID: 35537215 DOI: 10.1021/acs.joc.2c00168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Stereoselective synthesis of d-glycero- and l-glycero-β-d-mannoheptosides has been achieved by cesium carbonate-mediated β-selective anomeric O-alkylation of the corresponding d-mannoheptoses. In addition, this method has been utilized in the total synthesis of a tetrasaccharide repeat unit of Bacillus thermoaerophilus surface-layer glycoprotein.
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Affiliation(s)
- Shuai Meng
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, 2801 W. Bancroft Street, Toledo, Ohio 43606, United States
| | - Ishani Lakshika Hettiarachchi
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, 2801 W. Bancroft Street, Toledo, Ohio 43606, United States
| | - Bishwa Raj Bhetuwal
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, 2801 W. Bancroft Street, Toledo, Ohio 43606, United States
| | - Prakash Thapa
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, 2801 W. Bancroft Street, Toledo, Ohio 43606, United States
| | - Jianglong Zhu
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, 2801 W. Bancroft Street, Toledo, Ohio 43606, United States
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5
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Chemoselective and Diastereoselective Synthesis of
C
‐Aryl Nucleoside Analogues by Nickel‐Catalyzed Cross‐Coupling of Furanosyl Acetates with Aryl Iodides. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202110391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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6
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Li Y, Wang Z, Li L, Tian X, Shao F, Li C. Chemoselective and Diastereoselective Synthesis of C-Aryl Nucleoside Analogues by Nickel-Catalyzed Cross-Coupling of Furanosyl Acetates with Aryl Iodides. Angew Chem Int Ed Engl 2022; 61:e202110391. [PMID: 34664354 DOI: 10.1002/anie.202110391] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Indexed: 11/08/2022]
Abstract
Canonical nucleosides are vulnerable to enzymatic and chemical degradation, yet their stable mimics-C-aryl nucleosides-have demonstrated potential utility in medicinal chemistry, chemical biology, and synthetic biology, although current synthetic methods remain limited in terms of scope and selectivity. Herein, we report a cross-electrophile coupling to prepare C-aryl nucleoside analogues from readily available furanosyl acetates and aryl iodides. This nickel-catalyzed modular approach is characterized by mild reaction conditions, broad substrate scope, excellent β-selectivity, and high functional-group compatibility. The exclusive chemoselectivity with respect to the aryl iodide enables efficient preparation of a variety of C-aryl halide furanosides suitable for various downstream transformations. The practicality of this transformation is demonstrated through the synthesis of a potent analogue of a naturally occurring NF-κB activator.
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Affiliation(s)
- Yuxi Li
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, 100084, China.,National Institute of Biological Sciences, Beijing, 102206, China
| | - Zheng Wang
- National Institute of Biological Sciences, Beijing, 102206, China
| | - Luyang Li
- National Institute of Biological Sciences, Beijing, 102206, China
| | - Xiaoying Tian
- National Institute of Biological Sciences, Beijing, 102206, China.,Graduate School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 102206, China
| | - Feng Shao
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, 100084, China.,National Institute of Biological Sciences, Beijing, 102206, China.,Graduate School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 102206, China
| | - Chao Li
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, 100084, China.,National Institute of Biological Sciences, Beijing, 102206, China.,Graduate School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 102206, China
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7
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Sauvageau J, Williams D, Jamshidi MP. Pathogen-Associated Molecular Patterns: The Synthesis of Heptose Phosphates and Derivatives. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/s-0040-1720179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractLipopolysaccharide biosynthesis metabolites, such as d-glycero-β-d-manno-heptopyranosyl 1,7-diphosphate, d-glycero-β-d-manno-heptopyranosyl phosphate, and adenosine 5′-(l-glycero-β-d-manno-heptopyranosyl)diphosphate, have been found to activate NF-κB via alpha-kinase 1 and TRAF-interacting protein with forkhead associated domain. This axis has been determined as a novel pathway of innate immunity yet to be targeted for immunomodulatory treatment approaches. Key in understanding this new axis has been the ability to synthesize these metabolites. The design of synthetic analogues and probes have also been published not only to design new drugs, but also to gain insight into the mechanism of action for these compounds. The focus of the present review is the synthesis of heptose phosphate metabolites as well as synthetic analogues and probes.1 Introduction2 Synthesis of d-glycero-d-manno-Heptose2.1 Using d-Mannose as Starting Material2.2 Using d-Ribose as Starting Material2.3 Using 2,2-Dimethyl-1,3-dioxan-5-one as Starting Material3 Synthesis of l-glycero-d-manno-Heptose3.1 Using d-Mannose as Starting Material3.2 Using 2,2-Dimethyl-1,3-dioxan-5-one as Starting Material3.3 Using l-Lyxose as Starting Material4 Synthesis of Heptose Phosphates4.1 Synthesis of d-glycero-β-d-manno-Heptose 1,7-Diphosphate4.2 Synthesis of Heptose Phosphate Derivatives4.2.1 Development of Scaffolds for Conjugation4.2.2 Development of Heptose Phosphates Derivatives for Cell Intake and Metabolic Stability5 Conclusion and Outlook
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8
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Williams D, Jamshidi MP, St. Michael F, Chisholm K, Cox A, Sauvageau J. d-Glycero-β-d-mannoheptose Phosphate 7-O-Modifications. J Org Chem 2021; 86:2184-2199. [DOI: 10.1021/acs.joc.0c02333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Dean Williams
- Human Health Therapeutics, National Research Council of Canada, 100 Sussex Drive, Ottawa K1N 5A2, Canada
| | - Mohammad P. Jamshidi
- Human Health Therapeutics, National Research Council of Canada, 100 Sussex Drive, Ottawa K1N 5A2, Canada
| | - Frank St. Michael
- Human Health Therapeutics, National Research Council of Canada, 100 Sussex Drive, Ottawa K1N 5A2, Canada
| | - Kenneth Chisholm
- Human Health Therapeutics, National Research Council of Canada, 100 Sussex Drive, Ottawa K1N 5A2, Canada
| | - Andrew Cox
- Human Health Therapeutics, National Research Council of Canada, 100 Sussex Drive, Ottawa K1N 5A2, Canada
| | - Janelle Sauvageau
- Human Health Therapeutics, National Research Council of Canada, 100 Sussex Drive, Ottawa K1N 5A2, Canada
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9
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Beswick L, Dimitriou E, Ahmadipour S, Zafar A, Rejzek M, Reynisson J, Field RA, Miller GJ. Inhibition of the GDP-d-Mannose Dehydrogenase from Pseudomonas aeruginosa Using Targeted Sugar Nucleotide Probes. ACS Chem Biol 2020; 15:3086-3092. [PMID: 33237714 DOI: 10.1021/acschembio.0c00426] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Sufferers of cystic fibrosis are at extremely high risk for contracting chronic lung infections. Over their lifetime, one bacterial strain in particular, Pseudomonas aeruginosa, becomes the dominant pathogen. Bacterial strains incur loss-of-function mutations in the mucA gene that lead to a mucoid conversion, resulting in copious secretion of the exopolysaccharide alginate. Strategies that stop the production of alginate in mucoid Pseudomonas aeruginosa infections are therefore of paramount importance. To aid in this, a series of sugar nucleotide tools to probe an enzyme critical to alginate biosynthesis, guanosine diphosphate mannose dehydrogenase (GMD), have been developed. GMD catalyzes the irreversible formation of the alginate building block, guanosine diphosphate mannuronic acid. Using a chemoenzymatic strategy, we accessed a series of modified sugar nucleotides, identifying a C6-amide derivative of guanosine diphosphate mannose as a micromolar inhibitor of GMD. This discovery provides a framework for wider inhibition strategies against GMD to be developed.
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Affiliation(s)
- Laura Beswick
- Lennard-Jones Laboratory, School of Chemical and Physical Sciences, Keele University, Keele, Staffordshire ST5 5BG, United Kingdom
| | - Eleni Dimitriou
- Lennard-Jones Laboratory, School of Chemical and Physical Sciences, Keele University, Keele, Staffordshire ST5 5BG, United Kingdom
| | - Sanaz Ahmadipour
- Department of Chemistry and Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Ayesha Zafar
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, 1142 Auckland, New Zealand
| | - Martin Rejzek
- Department of Molecular Microbiology, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdom
| | - Jóhannes Reynisson
- Hornbeam Building, School of Pharmacy and Bioengineering, Keele University, Keele, Staffordshire ST5 5BG, United Kingdom
| | - Robert A Field
- Department of Chemistry and Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Gavin J Miller
- Lennard-Jones Laboratory, School of Chemical and Physical Sciences, Keele University, Keele, Staffordshire ST5 5BG, United Kingdom
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10
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Wang J, Rong J, Lou Q, Zhu Y, Yang Y. Synthesis of l- glycero- and d- glycero-d- manno-Heptose Building Blocks for Stereoselective Assembly of the Lipopolysaccharide Core Trisaccharide of Vibrio parahemolyticus O2. Org Lett 2020; 22:8018-8022. [PMID: 32991182 DOI: 10.1021/acs.orglett.0c02961] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Synthesis of bacterial cell surface l-glycero-d-manno-heptose (l,d-Hep)- and d-glycero-d-manno-heptose (d,d-Hep)-containing higher carbon sugars is a challenging task. Here, we report a convenient and efficient approach for the synthesis of the l,d-Hep and d,d-Hep building blocks. Using l-lyxose and d-ribose as starting materials, this approach features diastereoselective Mukaiyama-type aldol reactions as the key steps. On the basis of the synthetic l,d-Hep and d,d-Hep building blocks, we achieved the first stereoselective synthesis of the unique α-l,d-Hep-(1→3)-α-d,d-Hep-(1→5)-α-Kdo core trisaccharide of the lipopolysaccharide of Vibrio parahemolyticus O2.
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Affiliation(s)
- Junchang Wang
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jingjing Rong
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Qixin Lou
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yirong Zhu
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - You Yang
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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11
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ZOU XP, QIN CJ, HU J, FU JJ, TIAN GZ, MOSCOVITZ O, SEEBERGER PH, YIN J. Total synthesis of D-glycero-D-mannno-heptose 1β, 7-bisphosphate with 3-O-amyl amine linker and its monophosphate derivative. Chin J Nat Med 2020; 18:628-632. [DOI: 10.1016/s1875-5364(20)30075-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Indexed: 11/26/2022]
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12
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Simulescu V, Ilia G. Solid-phase Synthesis of Phosphorus Derivatives. CURR ORG CHEM 2019. [DOI: 10.2174/1385272823666190213112019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The solid-phase synthesis (SPS) of phosphorus-containing compounds is based mainly on the fact that the chemical process is conducted in a two-phase system. One of the components is connected via covalent bonds to a solid support, which is in general an insoluble polymer, representing the solid phase of the process. The other components involved into the process are solubilized in a solution. The method is suitable to be applied to almost any organic compounds. A common example of using solid-phase synthesis is for obtaining products nucleotide containing, similar to nucleic acids. During the whole process, the nucleotide is always on the solid phase, after the condensation reaction, except for the last step, when the synthesis is already finished. Then, the product is released and separated very easily by filtration. The obtained polymer-oligonucleotide product can participate further in condensation reactions as well. Other important biomolecules synthesized by solid-phase approach during the last decades are nucleoside di- and triphosphates, nucleoside diphosphate sugars and dinucleoside polyphosphates. Those products are precursors of deoxysugars, aminodeoxysugars, uronic acids or glycoconjugates, and are also necessary for DNA and RNA synthesis. The use of the solid-phase method in the context of immobilized oligomers is of great interest nowadays. The solid-phase synthesis offers many advantages in comparison with the conventional solution-phase method, because it takes much less time, it is highly stereoselective, the products are separated and purified usually by a simple filtration or decantation, solvents with high boiling points could be used, the whole process is based on solid polymer support and the obtained compounds should not be isolated.
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Affiliation(s)
- Vasile Simulescu
- Institute of Chemistry Timisoara of Romanian Academy, 24 Mihai Viteazul Bvd., 300223 Timisoara, Romania
| | - Gheorghe Ilia
- Institute of Chemistry Timisoara of Romanian Academy, 24 Mihai Viteazul Bvd., 300223 Timisoara, Romania
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13
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Pfannkuch L, Hurwitz R, Traulsen J, Sigulla J, Poeschke M, Matzner L, Kosma P, Schmid M, Meyer TF. ADP heptose, a novel pathogen-associated molecular pattern identified in Helicobacter pylori. FASEB J 2019; 33:9087-9099. [PMID: 31075211 PMCID: PMC6662969 DOI: 10.1096/fj.201802555r] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The gastric pathogen Helicobacter pylori activates the NF-κB pathway in human epithelial cells via the recently discovered α-kinase 1 TRAF-interacting protein with forkhead-associated domain (TIFA) axis. We and others showed that this pathway can be triggered by heptose 1,7-bisphosphate (HBP), an LPS intermediate produced in gram-negative bacteria that represents a new pathogen-associated molecular pattern (PAMP). Here, we report that our attempts to identify HBP in lysates of H. pylori revealed surprisingly low amounts, failing to explain NF-κB activation. Instead, we identified ADP-glycero-β-D-manno-heptose (ADP heptose), a derivative of HBP, as the predominant PAMP in lysates of H. pylori and other gram-negative bacteria. ADP heptose exhibits significantly higher activity than HBP, and cells specifically sensed the presence of the β-form, even when the compound was added extracellularly. The data lead us to conclude that ADP heptose not only constitutes the key PAMP responsible for H. pylori–induced NF-κB activation in epithelial cells, but it acts as a general gram-negative bacterial PAMP.—Pfannkuch, L., Hurwitz, R., Traulsen, J., Sigulla, J., Poeschke, M., Matzner, L., Kosma, P., Schmid, M., Meyer, T. F. ADP heptose, a novel pathogen-associated molecular pattern identified in Helicobacter pylori.
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Affiliation(s)
- Lennart Pfannkuch
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany.,Department of Infectious Diseases and Pulmonary Medicine, Charité, University Hospital Berlin, Berlin, Germany.,Berlin Institute of Health, Berlin, Germany
| | - Robert Hurwitz
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Jan Traulsen
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Janine Sigulla
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Marcella Poeschke
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Laura Matzner
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Paul Kosma
- Department of Chemistry, University of Natural Resources and Life Sciences-Vienna, Vienna, Austria
| | - Monika Schmid
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Thomas F Meyer
- Department of Molecular Biology, Max Planck Institute for Infection Biology, Berlin, Germany
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14
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Adekoya IA, Guo CX, Gray-Owen SD, Cox AD, Sauvageau J. d-Glycero-β-d-Manno-Heptose 1-Phosphate and d-Glycero-β-d-Manno-Heptose 1,7-Biphosphate Are Both Innate Immune Agonists. THE JOURNAL OF IMMUNOLOGY 2018; 201:2385-2391. [PMID: 30224513 DOI: 10.4049/jimmunol.1801012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 08/17/2018] [Indexed: 11/19/2022]
Abstract
d-Glycero-β-d-manno-heptose 1,7-biphosphate (β-HBP) is a novel microbial-associated molecular pattern that triggers inflammation and thus has the potential to act as an immune modulator in many therapeutic contexts. To better understand the structure-activity relationship of this molecule, we chemically synthesized analogs of β-HBP and tested their ability to induce canonical TIFA-dependent inflammation in human embryonic kidney cells (HEK 293T) and colonic epithelial cells (HCT 116). Of the analogs tested, only d-glycero-β-d-manno-heptose 1-phosphate (β-HMP) induced TIFA-dependent NF-κB activation and cytokine production in a manner similar to β-HBP. This finding expands the spectrum of metabolites from the Gram-negative ADP-heptose biosynthesis pathway that can function as innate immune agonists and provides a more readily available agonist of the TIFA-dependent inflammatory pathway that can be easily produced by synthetic methods.
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Affiliation(s)
- Itunuoluwa A Adekoya
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada; and
| | - Cynthia X Guo
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada; and
| | - Scott D Gray-Owen
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada; and
| | - Andrew D Cox
- Vaccine Program, Human Health Therapeutics Research Centre, National Research Council, Ottawa, Ontario K1A 0R6, Canada
| | - Janelle Sauvageau
- Vaccine Program, Human Health Therapeutics Research Centre, National Research Council, Ottawa, Ontario K1A 0R6, Canada
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15
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Alpha-kinase 1 is a cytosolic innate immune receptor for bacterial ADP-heptose. Nature 2018; 561:122-126. [PMID: 30111836 DOI: 10.1038/s41586-018-0433-3] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Accepted: 07/23/2018] [Indexed: 12/24/2022]
Abstract
Immune recognition of pathogen-associated molecular patterns (PAMPs) by pattern recognition receptors often activates proinflammatory NF-κB signalling1. Recent studies indicate that the bacterial metabolite D-glycero-β-D-manno-heptose 1,7-bisphosphate (HBP) can activate NF-κB signalling in host cytosol2-4, but it is unclear whether HBP is a genuine PAMP and the cognate pattern recognition receptor has not been identified. Here we combined a transposon screen in Yersinia pseudotuberculosis with biochemical analyses and identified ADP-β-D-manno-heptose (ADP-Hep), which mediates type III secretion system-dependent NF-κB activation and cytokine expression. ADP-Hep, but not other heptose metabolites, could enter host cytosol to activate NF-κB. A CRISPR-Cas9 screen showed that activation of NF-κB by ADP-Hep involves an ALPK1 (alpha-kinase 1)-TIFA (TRAF-interacting protein with forkhead-associated domain) axis. ADP-Hep directly binds the N-terminal domain of ALPK1, stimulating its kinase domain to phosphorylate and activate TIFA. The crystal structure of the N-terminal domain of ALPK1 and ADP-Hep in complex revealed the atomic mechanism of this ligand-receptor recognition process. HBP was transformed by host adenylyltransferases into ADP-heptose 7-P, which could activate ALPK1 to a lesser extent than ADP-Hep. ADP-Hep (but not HBP) alone or during bacterial infection induced Alpk1-dependent inflammation in mice. Our findings identify ALPK1 and ADP-Hep as a pattern recognition receptor and an effective immunomodulator, respectively.
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16
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Sauvageau J, Bhasin M, Guo CX, Adekoya IA, Gray-Owen SD, Oscarson S, Guazzelli L, Cox A. Alternate synthesis to d-glycero-β-d-manno-heptose 1,7-biphosphate. Carbohydr Res 2017; 450:38-43. [PMID: 28866079 DOI: 10.1016/j.carres.2017.08.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 07/27/2017] [Accepted: 08/22/2017] [Indexed: 12/14/2022]
Abstract
d-glycero-β-d-manno-heptose 1,7-biphosphate (HBP) is an enzymatic intermediate in the biosynthesis of the heptose component of lipopolysaccharide (LPS), and was recently revealed to be a pathogen-associated molecular pattern (PAMP) that allows detection of Gram-negative bacteria by the mammalian immune system. Cellular detection of HBP depends upon its stimulation of a cascade that leads to the phosphorylation and assembly of the TRAF-interacting with forkhead-associated domain protein A (TIFA), which activates the transcription factor NF-κB. In this note, an alternate chemical synthesis of HBP is described and its biological activity is established, providing pure material for further assessing and exploiting the biological activity of this compound.
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Affiliation(s)
- Janelle Sauvageau
- Vaccine Program, Human Health Therapeutics Portfolio, National Research Council, Ottawa, Ontario, K1A 0R6, Canada.
| | - Milan Bhasin
- Vaccine Program, Human Health Therapeutics Portfolio, National Research Council, Ottawa, Ontario, K1A 0R6, Canada
| | - Cynthia X Guo
- Department of Molecular Genetics, University of Toronto, Toronto, M5S 1A8, Canada
| | - Itunuoluwa A Adekoya
- Department of Molecular Genetics, University of Toronto, Toronto, M5S 1A8, Canada
| | - Scott D Gray-Owen
- Department of Molecular Genetics, University of Toronto, Toronto, M5S 1A8, Canada
| | - Stefan Oscarson
- Centre for Synthesis and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Lorenzo Guazzelli
- Centre for Synthesis and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Andrew Cox
- Vaccine Program, Human Health Therapeutics Portfolio, National Research Council, Ottawa, Ontario, K1A 0R6, Canada
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17
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Borio A, Hofinger A, Kosma P, Zamyatina A. Chemical synthesis of the innate immune modulator – bacterial d - glycero -β- d - manno- heptose-1,7-bisphosphate (HBP). Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.06.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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18
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Inuki S, Aiba T, Kawakami S, Akiyama T, Inoue JI, Fujimoto Y. Chemical Synthesis of d-glycero-d-manno-Heptose 1,7-Bisphosphate and Evaluation of Its Ability to Modulate NF-κB Activation. Org Lett 2017; 19:3079-3082. [DOI: 10.1021/acs.orglett.7b01158] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Shinsuke Inuki
- Graduate
School of Science and Technology, Keio University 3-14-1 Hiyoshi,
Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Toshihiko Aiba
- Graduate
School of Science and Technology, Keio University 3-14-1 Hiyoshi,
Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
- Department
of Chemistry, Graduate School of Science, Osaka University, 1-1
Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Shota Kawakami
- Graduate
School of Science and Technology, Keio University 3-14-1 Hiyoshi,
Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Taishin Akiyama
- Division
of Cellular and Molecular Biology, Department of Cancer Biology, The
Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Jun-ichiro Inoue
- Division
of Cellular and Molecular Biology, Department of Cancer Biology, The
Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Yukari Fujimoto
- Graduate
School of Science and Technology, Keio University 3-14-1 Hiyoshi,
Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
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19
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Bosco M, Massarweh A, Iatmanen-Harbi S, Bouhss A, Chantret I, Busca P, Moore SEH, Gravier-Pelletier C. Synthesis and biological evaluation of chemical tools for the study of Dolichol Linked Oligosaccharide Diphosphatase (DLODP). Eur J Med Chem 2016; 125:952-964. [PMID: 27769035 DOI: 10.1016/j.ejmech.2016.10.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 09/19/2016] [Accepted: 10/07/2016] [Indexed: 01/16/2023]
Abstract
Citronellyl- and solanesyl-based dolichol linked oligosaccharide (DLO) analogs were synthesized and tested along with undecaprenyl compounds for their ability to inhibit the release of [3H]OSP from [3H]DLO by mammalian liver DLO diphosphatase activity. Solanesyl (C45) and undecaprenyl (C55) compounds were 50-500 fold more potent than their citronellyl (C10)-based counterparts, indicating that the alkyl chain length is important for activity. The relative potency of the compounds within the citronellyl series was different to that of the solanesyl series with citronellyl diphosphate being 2 and 3 fold more potent than citronellyl-PP-GlcNAc2 and citronellyl-PP-GlcNAc, respectively; whereas solanesyl-PP-GlcNAc and solanesyl-PP-GlcNAc2 were 4 and 8 fold more potent, respectively, than solanesyl diphosphate. Undecaprenyl-PP-GlcNAc and bacterial Lipid II were 8 fold more potent than undecaprenyl diphosphate at inhibiting the DLODP assay. Therefore, at least for the more hydrophobic compounds, diphosphodiesters are more potent inhibitors of the DLODP assay than diphosphomonoesters. These results suggest that DLO rather than dolichyl diphosphate might be a preferred substrate for the DLODP activity.
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Affiliation(s)
- Michaël Bosco
- Université Paris Descartes, CICB-Paris, CNRS UMR 8601, Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, 45 rue des Saints-Pères, 75006, Paris, France
| | - Ahmad Massarweh
- Université Paris Diderot, INSERM U1149, 16 rue Henri Huchard, 75018, Paris, France
| | - Soria Iatmanen-Harbi
- Université Paris Diderot, INSERM U1149, 16 rue Henri Huchard, 75018, Paris, France
| | - Ahmed Bouhss
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ Paris-Sud, Université Paris-Saclay, 91198, Gif-sur-Yvette, France
| | - Isabelle Chantret
- Université Paris Diderot, INSERM U1149, 16 rue Henri Huchard, 75018, Paris, France
| | - Patricia Busca
- Université Paris Descartes, CICB-Paris, CNRS UMR 8601, Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, 45 rue des Saints-Pères, 75006, Paris, France
| | - Stuart E H Moore
- Université Paris Diderot, INSERM U1149, 16 rue Henri Huchard, 75018, Paris, France
| | - Christine Gravier-Pelletier
- Université Paris Descartes, CICB-Paris, CNRS UMR 8601, Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, 45 rue des Saints-Pères, 75006, Paris, France.
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20
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Massarweh A, Bosco M, Iatmanen-Harbi S, Tessier C, Auberger N, Busca P, Chantret I, Gravier-Pelletier C, Moore SEH. Demonstration of an oligosaccharide-diphosphodolichol diphosphatase activity whose subcellular localization is different than those of dolichyl-phosphate-dependent enzymes of the dolichol cycle. J Lipid Res 2016; 57:1029-42. [PMID: 27037250 DOI: 10.1194/jlr.m067330] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Indexed: 11/20/2022] Open
Abstract
Oligosaccharyl phosphates (OSPs) are hydrolyzed from oligosaccharide-diphosphodolichol (DLO) during protein N-glycosylation by an uncharacterized process. An OSP-generating activity has been reported in vitro, and here we asked if its biochemical characteristics are compatible with a role in endoplasmic reticulum (ER)-situated DLO regulation. We demonstrate a Co(2+)-dependent DLO diphosphatase (DLODP) activity that splits DLO into dolichyl phosphate and OSP. DLODP has a pH optimum of 5.5 and is inhibited by vanadate but not by NaF. Polyprenyl diphosphates inhibit [(3)H]OSP release from [(3)H]DLO, the length of their alkyl chains correlating positively with inhibition potency. The diphosphodiester GlcNAc2-PP-solanesol is hydrolyzed to yield GlcNAc2-P and inhibits [(3)H]OSP release from [(3)H]DLO more effectively than the diphosphomonoester solanesyl diphosphate. During subcellular fractionation of liver homogenates, DLODP codistributes with microsomal markers, and density gradient centrifugation revealed that the distribution of DLODP is closer to that of Golgi apparatus-situated UDP-galactose glycoprotein galactosyltransferase than those of dolichyl-P-dependent glycosyltransferases required for DLO biosynthesis in the ER. Therefore, a DLODP activity showing selectivity toward lipophilic diphosphodiesters such as DLO, and possessing properties distinct from other lipid phosphatases, is identified. Separate subcellular locations for DLODP action and DLO biosynthesis may be required to prevent uncontrolled DLO destruction.
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Affiliation(s)
- Ahmad Massarweh
- INSERM U1149, Paris, France Université Denis Diderot, Paris 7, Paris, France Université Pierre et Marie Curie, Paris 6, Paris, France
| | - Michaël Bosco
- Université Paris Descartes, CICB-Paris, CNRS UMR8601, LCBPT, Paris, France
| | | | - Clarice Tessier
- INSERM U1149, Paris, France Université Denis Diderot, Paris 7, Paris, France
| | - Nicolas Auberger
- Université Paris Descartes, CICB-Paris, CNRS UMR8601, LCBPT, Paris, France
| | - Patricia Busca
- Université Paris Descartes, CICB-Paris, CNRS UMR8601, LCBPT, Paris, France
| | - Isabelle Chantret
- INSERM U1149, Paris, France Université Denis Diderot, Paris 7, Paris, France
| | | | - Stuart E H Moore
- INSERM U1149, Paris, France Université Denis Diderot, Paris 7, Paris, France
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21
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5'-Spiro-cyclopropanated lactose derivatives as suitable intermediates for the chain elongation: synthesis of a new 6-deoxy-6-methyl δ-eptulose. Carbohydr Res 2016; 422:45-52. [PMID: 26854721 DOI: 10.1016/j.carres.2016.01.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 12/14/2015] [Accepted: 01/20/2016] [Indexed: 10/22/2022]
Abstract
A δ-dicarbonyl heptose has been prepared through an electrophilic ring opening procedure of a 5'-spirocyclopropanated lactose derivative. The reported synthetic procedure outlines a new route for the transformation of this renewable disaccharide into new and interesting δ-dicarbonyl sugars, synthetic precursors of cyclitols, carba- and azasugars. The experimental results of the cyclopropanation process have been successfully rationalized by in silico studies.
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22
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Ebbensgaard A, Mordhorst H, Overgaard MT, Nielsen CG, Aarestrup FM, Hansen EB. Comparative Evaluation of the Antimicrobial Activity of Different Antimicrobial Peptides against a Range of Pathogenic Bacteria. PLoS One 2015; 10:e0144611. [PMID: 26656394 PMCID: PMC4684357 DOI: 10.1371/journal.pone.0144611] [Citation(s) in RCA: 122] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 11/20/2015] [Indexed: 12/19/2022] Open
Abstract
ANALYSIS OF A SELECTED SET OF ANTIMICROBIAL PEPTIDES The rapid emergence of resistance to classical antibiotics has increased the interest in novel antimicrobial compounds. Antimicrobial peptides (AMPs) represent an attractive alternative to classical antibiotics and a number of different studies have reported antimicrobial activity data of various AMPs, but there is only limited comparative data available. The mode of action for many AMPs is largely unknown even though several models have suggested that the lipopolysaccharides (LPS) play a crucial role in the attraction and attachment of the AMP to the bacterial membrane in Gram-negative bacteria. We compared the potency of Cap18, Cap11, Cap11-1-18m2, Cecropin P1, Cecropin B, Bac2A, Bac2A-NH2, Sub5-NH2, Indolicidin, Melittin, Myxinidin, Myxinidin-NH2, Pyrrhocoricin, Apidaecin and Metalnikowin I towards Staphylococcus aureus, Enterococcus faecalis, Pseudomonas aeruginosa, Escherichia coli, Aeromonas salmonicida, Listeria monocytogenes, Campylobacter jejuni, Flavobacterium psychrophilum, Salmonella typhimurium and Yersinia ruckeri by minimal inhibitory concentration (MIC) determinations. Additional characteristics such as cytotoxicity, thermo and protease stability were measured and compared among the different peptides. Further, the antimicrobial activity of a selection of cationic AMPs was investigated in various E. coli LPS mutants. CAP18 SHOWS A HIGH BROAD SPECTRUM ANTIMICROBIAL ACTIVITY Of all the tested AMPs, Cap18 showed the most efficient antimicrobial activity, in particular against Gram-negative bacteria. In addition, Cap18 is highly thermostable and showed no cytotoxic effect in a hemolytic assay, measured at the concentration used. However, Cap18 is, as most of the tested AMPs, sensitive to proteolytic digestion in vitro. Thus, Cap18 is an excellent candidate for further development into practical use; however, modifications that should reduce the protease sensitivity would be needed. In addition, our findings from analyzing LPS mutant strains suggest that the core oligosaccharide of the LPS molecule is not essential for the antimicrobial activity of cationic AMPs, but in fact has a protective role against AMPs.
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Affiliation(s)
- Anna Ebbensgaard
- National Food Institute, Technical University of Denmark, Søltofts Plads, 2800 Kgs, Lyngby, Denmark
| | - Hanne Mordhorst
- National Food Institute, Technical University of Denmark, Søltofts Plads, 2800 Kgs, Lyngby, Denmark
| | - Michael Toft Overgaard
- Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220, Aalborg, Denmark
| | - Claus Gyrup Nielsen
- Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220, Aalborg, Denmark
| | - Frank Møller Aarestrup
- National Food Institute, Technical University of Denmark, Søltofts Plads, 2800 Kgs, Lyngby, Denmark
| | - Egon Bech Hansen
- National Food Institute, Technical University of Denmark, Mørkhøj Bygade 19, 2860, Søborg, Denmark
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23
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Stanetty C, Baxendale IR. Large-Scale Synthesis of Crystalline 1,2,3,4,6,7-Hexa- O-acetyl-l- glycero-α-d- manno-heptopyranose. European J Org Chem 2015; 2015:2718-2726. [PMID: 26097405 PMCID: PMC4464551 DOI: 10.1002/ejoc.201500024] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Indexed: 01/14/2023]
Abstract
The higher-carbon sugar l-glycero-d-manno-heptose is a major constituent of the inner core region of the lipopolysaccharide (LPS) of many Gram-negative bacteria. All preparative routes used to date require multiple steps, and scalability has been rarely addressed. Here a highly practical synthesis of crystalline 1,2,3,4,6,7-hexa-O-acetyl-l-glycero-α-d-manno-heptopyranose by a simple four-step sequence starting from l-lyxose is disclosed. Only two recrystallisations are required and the process was demonstrated on a >100 mmol scale, yielding 41 g of the target compound.
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Affiliation(s)
- Christian Stanetty
- Department of Chemistry, Durham UniversitySouth Road, Durham, DH1 3LE, United Kingdom
| | - Ian R Baxendale
- Department of Chemistry, Durham UniversitySouth Road, Durham, DH1 3LE, United Kingdom
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24
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Tanaka H. Recent Approaches to the Chemical Synthesis of Sugar Nucleoside Diphosphates. TRENDS GLYCOSCI GLYC 2015. [DOI: 10.4052/tigg.1423.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Hidenori Tanaka
- Oceanography Section, Science Research Center, Kochi University
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25
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Lu Q, Yao Q, Xu Y, Li L, Li S, Liu Y, Gao W, Niu M, Sharon M, Ben-Nissan G, Zamyatina A, Liu X, Chen S, Shao F. An Iron-Containing Dodecameric Heptosyltransferase Family Modifies Bacterial Autotransporters in Pathogenesis. Cell Host Microbe 2014; 16:351-63. [DOI: 10.1016/j.chom.2014.08.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 07/06/2014] [Accepted: 08/01/2014] [Indexed: 01/11/2023]
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26
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Yao Q, Lu Q, Wan X, Song F, Xu Y, Hu M, Zamyatina A, Liu X, Huang N, Zhu P, Shao F. A structural mechanism for bacterial autotransporter glycosylation by a dodecameric heptosyltransferase family. eLife 2014; 3:e03714. [PMID: 25310236 PMCID: PMC4358343 DOI: 10.7554/elife.03714] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Accepted: 10/12/2014] [Indexed: 01/07/2023] Open
Abstract
A large group of bacterial virulence autotransporters including AIDA-I from diffusely adhering E. coli (DAEC) and TibA from enterotoxigenic E. coli (ETEC) require hyperglycosylation for functioning. Here we demonstrate that TibC from ETEC harbors a heptosyltransferase activity on TibA and AIDA-I, defining a large family of bacterial autotransporter heptosyltransferases (BAHTs). The crystal structure of TibC reveals a characteristic ring-shape dodecamer. The protomer features an N-terminal β-barrel, a catalytic domain, a β-hairpin thumb, and a unique iron-finger motif. The iron-finger motif contributes to back-to-back dimerization; six dimers form the ring through β-hairpin thumb-mediated hand-in-hand contact. The structure of ADP-D-glycero-β-D-manno-heptose (ADP-D,D-heptose)-bound TibC reveals a sugar transfer mechanism and also the ligand stereoselectivity determinant. Electron-cryomicroscopy analyses uncover a TibC-TibA dodecamer/hexamer assembly with two enzyme molecules binding to one TibA substrate. The complex structure also highlights a high efficient hyperglycosylation of six autotransporter substrates simultaneously by the dodecamer enzyme complex.
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Affiliation(s)
- Qing Yao
- Dr Feng Shao's Laboratory, National Institute of Biological Sciences, Beijing, China
| | - Qiuhe Lu
- Dr Feng Shao's Laboratory, National Institute of Biological Sciences, Beijing, China
| | - Xiaobo Wan
- Dr Niu Huang's Laboratory, National Institute of Biological Sciences, Beijing, China
| | - Feng Song
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China,Shandong Provincial Key Laboratory of Functional Macromolecular Biophysics, Institute of Biophysics, Dezhou University, Dezhou, China
| | - Yue Xu
- Dr Feng Shao's Laboratory, National Institute of Biological Sciences, Beijing, China
| | - Mo Hu
- Institute of Analytic Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing, China,Synthetic Functional Biomolecules Center, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Alla Zamyatina
- Department of Chemistry, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Xiaoyun Liu
- Institute of Analytic Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing, China,Synthetic Functional Biomolecules Center, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Niu Huang
- Dr Niu Huang's Laboratory, National Institute of Biological Sciences, Beijing, China
| | - Ping Zhu
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China,For correspondence: (PZ)
| | - Feng Shao
- Dr Feng Shao's Laboratory, National Institute of Biological Sciences, Beijing, China,National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China,For correspondence: (FS)
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27
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Lee TW, Verhey TB, Antiperovitch PA, Atamanyuk D, Desroy N, Oliveira C, Denis A, Gerusz V, Drocourt E, Loutet SA, Hamad MA, Stanetty C, Andres SN, Sugiman-Marangos S, Kosma P, Valvano MA, Moreau F, Junop MS. Structural-functional studies of Burkholderia cenocepacia D-glycero-β-D-manno-heptose 7-phosphate kinase (HldA) and characterization of inhibitors with antibiotic adjuvant and antivirulence properties. J Med Chem 2013; 56:1405-17. [PMID: 23256532 PMCID: PMC3585733 DOI: 10.1021/jm301483h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
As an essential constituent of the outer membrane of Gram-negative bacteria, lipopolysaccharide contributes significantly to virulence and antibiotic resistance. The lipopolysaccharide biosynthetic pathway therefore serves as a promising therapeutic target for antivirulence drugs and antibiotic adjuvants. Here we report the structural-functional studies of D-glycero-β-D-manno-heptose 7-phosphate kinase (HldA), an absolutely conserved enzyme in this pathway, from Burkholderia cenocepacia. HldA is structurally similar to members of the PfkB carbohydrate kinase family and appears to catalyze heptose phosphorylation via an in-line mechanism mediated mainly by a conserved aspartate, Asp270. Moreover, we report the structures of HldA in complex with two potent inhibitors in which both inhibitors adopt a folded conformation and occupy the nucleotide-binding sites. Together, these results provide important insight into the mechanism of HldA-catalyzed heptose phosphorylation and necessary information for further development of HldA inhibitors.
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Affiliation(s)
- Ting-Wai Lee
- Department of Biochemistry and Biomedical Sciences and Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4K1, Canada
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28
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29
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Tonn VC, Meier C. Solid-phase synthesis of (poly)phosphorylated nucleosides and conjugates. Chemistry 2011; 17:9832-42. [PMID: 21766366 DOI: 10.1002/chem.201101291] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Indexed: 11/11/2022]
Abstract
Succinyl-cycloSal-phosphate triesters of ribo- and 2'-deoxyribonucleosides were attached to aminomethyl polystyrene as an insoluble solid support and reacted with phosphate-containing nucleophiles yielding nucleoside di- and triphosphates, nucleoside diphosphate sugars, and dinucleoside polyphosphates in high purity after cleavage from the solid support. Here, reactive cycloSal-phosphate triesters were used as immobilized reagents that led to a generally applicable method for the efficient synthesis of phosphorylated biomolecules and phosphate-bridged bioconjugates.
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Affiliation(s)
- Viktoria Caroline Tonn
- Organic Chemistry, Department of Chemistry, Faculty of Sciences, University of Hamburg, Hamburg, Germany
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30
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Crystal and molecular structure of methyl L-glycero-α-D-manno-heptopyranoside, and synthesis of 1→7 linked L-glycero-D-manno-heptobiose and its methyl α-glycoside. Carbohydr Res 2011; 346:1739-46. [PMID: 21741627 PMCID: PMC3252701 DOI: 10.1016/j.carres.2011.05.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Revised: 05/26/2011] [Accepted: 05/27/2011] [Indexed: 11/29/2022]
Abstract
Methyl l-glycero-α-d-manno-heptopyranoside was synthesized in good yield by a Fischer-type glycosylation of the heptopyranose with methanol in the presence of cation-exchange resin under reflux and microwave conditions, respectively. The compound crystallized from 2-propanol in an orthorhombic lattice of space group P21212 showing a comparatively porous structure with a 2-dimensional O–H⋯O hydrogen bond network. As model compounds for the side chain domains of the inner core structure of bacterial lipopolysaccharide, l-glycero-α-d-manno-heptopyranosyl-(1→7)-l-glycero-d-manno-heptopyranose and the corresponding disaccharide methyl α-glycoside were prepared. The former compound was generated via glycosylation of a benzyl 5,6-dideoxy-hept-5-enofuranoside intermediate followed by catalytic osmylation and deprotection. The latter disaccharide was efficiently synthesized in good yield by a straightforward coupling of an acetylated N-phenyltrifluoroacetimidate heptopyranosyl donor to a methyl 2,3,4,6-tetra-O-acetyl heptopyranoside acceptor derivative followed by Zemplén deacetylation.
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31
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Fylaktakidou KC, Duarte CD, Koumbis AE, Nicolau C, Lehn JM. Polyphosphates and Pyrophosphates of Hexopyranoses as Allosteric Effectors of Human Hemoglobin: Synthesis, Molecular Recognition, and Effect on Oxygen Release. ChemMedChem 2010; 6:153-68. [DOI: 10.1002/cmdc.201000366] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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32
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Gronow S, Xia G, Brade H. Glycosyltransferases involved in the biosynthesis of the inner core region of different lipopolysaccharides. Eur J Cell Biol 2009; 89:3-10. [PMID: 19900730 DOI: 10.1016/j.ejcb.2009.10.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
The inner core of lipopolysaccharide (LPS) structures in Gram-negative bacteria is considered a highly conserved region. The sugar connecting the membrane-associated lipid A moiety with the hydrophilic saccharide moiety, 3-deoxy-alpha-d-manno-oct-2-ulosonic acid (Kdo) is present in every LPS molecule investigated but it may be partially replaced by d-glycero-alpha-d-talo-oct-2-ulosonic acid (Ko). l-Glycero-alpha-d-manno-heptose (Hep) and phosphate residues are part of most but not all LPS structures and additionally, modifications with 4-amino-4-deoxy-beta-l-arabinose (Ara4N) residues occur in some. A number of different glycosyltransferases is involved in the biosynthesis of the inner core region of different lipopolysaccharides. Here, we report the characterization of Kdo transferases, heptosyltransferases and Ara4N transferases from a variety of bacteria.
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Affiliation(s)
- Sabine Gronow
- Division of Medical and Biochemical Microbiology, Research Center Borstel, Leibniz-Center for Medicine and Biosciences, Borstel, Germany.
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33
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Wagner GK, Pesnot T, Field RA. A survey of chemical methods for sugar-nucleotide synthesis. Nat Prod Rep 2009; 26:1172-94. [PMID: 19693414 DOI: 10.1039/b909621n] [Citation(s) in RCA: 111] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Gerd K Wagner
- School of Chemical Sciences and Pharmacy, University of East Anglia, Norwich, NR4 7TJ, UK.
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34
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Abad-Romero B, Mereiter K, Sixta H, Hofinger A, Kosma P. Synthesis of regioselectively sulfated xylodextrins and crystal structure of sodium methyl β-d-xylopyranoside 4-O-sulfate hemihydrate. Carbohydr Res 2009; 344:21-8. [DOI: 10.1016/j.carres.2008.09.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2008] [Revised: 09/09/2008] [Accepted: 09/10/2008] [Indexed: 10/21/2022]
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35
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Desroy N, Moreau F, Briet S, Le Fralliec G, Floquet S, Durant L, Vongsouthi V, Gerusz V, Denis A, Escaich S. Towards Gram-negative antivirulence drugs: new inhibitors of HldE kinase. Bioorg Med Chem 2008; 17:1276-89. [PMID: 19124251 DOI: 10.1016/j.bmc.2008.12.021] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2008] [Revised: 12/01/2008] [Accepted: 12/09/2008] [Indexed: 10/21/2022]
Abstract
Gram-negative bacteria lacking heptoses in their lipopolysaccharide (LPS) display attenuated virulence and increased sensitivity to human serum and to some antibiotics. Thus inhibition of bacterial heptose synthesis represents an attractive target for the development of new antibacterial agents. HldE is a bifunctional enzyme involved in the synthesis of bacterial heptoses. Development of a biochemical assay suitable for high-throughput screening allowed the discovery of inhibitors 1 and 2 of HldE kinase. Study of the structure-activity relationship of this series of inhibitors led to highly potent compounds.
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Affiliation(s)
- Nicolas Desroy
- MUTABILIS SA, 102 Avenue Gaston Roussel, 93230 Romainville, France.
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36
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Zdorovenko EL, Vinogradov E, Wydra K, Lindner B, Knirel YA. Structure of the Oligosaccharide Chain of the SR-Type Lipopolysaccharide of Ralstonia solanacearum Toudk-2. Biomacromolecules 2008; 9:2215-20. [DOI: 10.1021/bm800326u] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Evelina L. Zdorovenko
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia, Institute for Biological Sciences, National Research Council Canada, Ottawa, K1A 0R6, Canada, Institute of Plant Diseases and Plant Protection, University of Hannover, D-30167 Hannover, Germany, and Research Center Borstel, Center for Medicine and Biosciences, D-23845 Borstel, Germany
| | - Evgeny Vinogradov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia, Institute for Biological Sciences, National Research Council Canada, Ottawa, K1A 0R6, Canada, Institute of Plant Diseases and Plant Protection, University of Hannover, D-30167 Hannover, Germany, and Research Center Borstel, Center for Medicine and Biosciences, D-23845 Borstel, Germany
| | - Kerstin Wydra
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia, Institute for Biological Sciences, National Research Council Canada, Ottawa, K1A 0R6, Canada, Institute of Plant Diseases and Plant Protection, University of Hannover, D-30167 Hannover, Germany, and Research Center Borstel, Center for Medicine and Biosciences, D-23845 Borstel, Germany
| | - Buko Lindner
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia, Institute for Biological Sciences, National Research Council Canada, Ottawa, K1A 0R6, Canada, Institute of Plant Diseases and Plant Protection, University of Hannover, D-30167 Hannover, Germany, and Research Center Borstel, Center for Medicine and Biosciences, D-23845 Borstel, Germany
| | - Yuriy A. Knirel
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia, Institute for Biological Sciences, National Research Council Canada, Ottawa, K1A 0R6, Canada, Institute of Plant Diseases and Plant Protection, University of Hannover, D-30167 Hannover, Germany, and Research Center Borstel, Center for Medicine and Biosciences, D-23845 Borstel, Germany
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38
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Kondakova AN, Ho N, Bystrova OV, Shashkov AS, Lindner B, Creuzenet C, Knirel YA. Structural studies of the O-antigens of Yersinia pseudotuberculosis O:2a and mutants thereof with impaired 6-deoxy-d-manno-heptose biosynthesis pathway. Carbohydr Res 2008; 343:1383-9. [DOI: 10.1016/j.carres.2008.04.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2008] [Revised: 03/27/2008] [Accepted: 04/01/2008] [Indexed: 11/26/2022]
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39
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Jaipuri F, Collet B, Pohl N. Synthesis and Quantitative Evaluation ofGlycero-D-manno-heptose Binding to Concanavalin A by Fluorous-Tag Assistance. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200704262] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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40
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Jaipuri F, Collet B, Pohl N. Synthesis and Quantitative Evaluation ofGlycero-D-manno-heptose Binding to Concanavalin A by Fluorous-Tag Assistance. Angew Chem Int Ed Engl 2008; 47:1707-10. [DOI: 10.1002/anie.200704262] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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41
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Timmons SC, Jakeman DL. Stereospecific synthesis of sugar-1-phosphates and their conversion to sugar nucleotides. Carbohydr Res 2008; 343:865-74. [PMID: 18299123 DOI: 10.1016/j.carres.2008.01.046] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2007] [Revised: 01/23/2008] [Accepted: 01/31/2008] [Indexed: 11/16/2022]
Abstract
As Leloir glycosyltransferases are increasingly being used to prepare oligosaccharides, glycoconjugates, and glycosylated natural products, efficient access to stereopure sugar nucleotide donor substrates is required. Herein, the rapid synthesis and purification of eight sugar nucleotides is described by a facile 30 min activation of nucleoside 5'-monophosphates bearing purine and pyrimidine bases with trifluoroacetic anhydride and N-methylimidazole, followed by a 2 h coupling with stereospecifically prepared sugar-1-phosphates. Tributylammonium bicarbonate and tributylammonium acetate were the ion-pair reagents of choice for the C18 reversed-phase purification of 6-deoxysugar nucleotides, and hexose or pentose-derived sugar nucleotides, respectively.
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Affiliation(s)
- Shannon C Timmons
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada
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42
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Balla E, Zamyatina A, Hofinger A, Kosma P. Synthesis of a deoxy analogue of ADP L-glycero-D-manno-heptose. Carbohydr Res 2007; 342:2537-45. [PMID: 17880933 DOI: 10.1016/j.carres.2007.07.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2007] [Accepted: 07/27/2007] [Indexed: 11/25/2022]
Abstract
Starting from l-lyxose, indium-mediated chain elongation with allyl bromide followed by acetylation and oxidative cleavage of the double bond and deprotection afforded 2-deoxy-l-galacto-heptose as a 2-deoxy analogue of the bacterial carbohydrate l-glycero-d-manno-heptose in good overall yield. For the synthesis of the ADP-activated derivative, the 2-deoxy-heptose was O-acetylated and transformed into the anomeric bromide derivative, which was then converted into the acetylated heptopyranosyl phosphate by reaction with tetrabutylammonium phosphate. Deprotection and separation of the anomeric phosphates furnished 2-deoxy-beta-l-galacto-heptopyranosyl phosphate. Coupling of the acetylated heptosyl phosphate with AMP morpholidate afforded the acetylated ADP derivative in good yield. Removal of the acetyl groups gave the target compound ADP 2-deoxy-l-galacto-heptopyranose, which may serve as substrate analogue of bacterial ADP heptosyl transferases for biochemical and crystallographic studies.
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Affiliation(s)
- Edit Balla
- Department of Chemistry, University of Natural Resources and Applied Life Sciences, Muthgasse 18, A-1190 Vienna, Austria
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43
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Graziani A, Amer H, Zamyatina A, Hofinger A, Kosma P. Synthesis of C-glycosidically linked ADP glycero-β-d-manno-heptose analogues. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2006.12.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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44
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Crich D, Banerjee A. Stereocontrolled synthesis of the D- and L-glycero-beta-D-manno-heptopyranosides and their 6-deoxy analogues. Synthesis of methyl alpha-l-rhamno-pyranosyl-(1-->3)-D-glycero-beta-D-manno-heptopyranosyl- (1-->3)-6-deoxy-glycero-beta-D-manno-heptopyranosyl-(1-->4)-alpha-L- rhamno-pyranoside, a tetrasaccharide subunit of the lipopolysaccharide from Plesimonas shigelloides. J Am Chem Soc 2006; 128:8078-86. [PMID: 16771524 PMCID: PMC2617734 DOI: 10.1021/ja061594u] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of d- and l-glycero-alpha-manno-thioheptopyranosides, protected with 4,6-O-alkylidene-type acetals is described. In glycosylations carried out with preactivation with the 1-benzenesulfinylpiperidine/trifluoromethanesulfonic anhydride couple, both the D- and L-glycero series exhibit excellent beta-selectivity with a range of glycosyl acceptors. In contrast, a 4,7-O-alkylidene acetal was found not to afford beta-selectivity. With a 4,6-O-[1-cyano-2-(2-iodophenyl)ethylidene] acetal protected thioglycoside, excellent beta-selectivity was obtained in glycosylation reactions, and subsequent treatment with tributyltin hydride and azoisobutyronitrile brought about clean fragmentation to the 6-deoxy-glycero-beta-D-manno-heptopyranosides. This chemistry was applied to the stereocontrolled synthesis of methyl alpha-L-rhamno-pyranosyl-(1-->3)-D-glycero-beta-D-manno-heptopyranosyl-(1-->3)-6-deoxy-glycero-beta-D-manno-heptopyranosyl-(1-->4)-alpha-L-rhamno-pyranoside, a component of the lipopolysaccharide from Plesimonas shigelloides.
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Affiliation(s)
- David Crich
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, USA.
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45
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Dinev Z, Wardak AZ, Brownlee RTC, Williams SJ. A convenient gram-scale synthesis of uridine diphospho(13C6)glucose. Carbohydr Res 2006; 341:1743-7. [PMID: 16603138 DOI: 10.1016/j.carres.2006.02.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2006] [Revised: 02/20/2006] [Accepted: 02/24/2006] [Indexed: 10/24/2022]
Abstract
A simple gram-scale synthesis of uridine diphospho(13C6)glucose is presented from D-(13C6)glucose. The critical step uses a 1H-tetrazole-catalyzed coupling of 2,3,4,6-tetra-O-acetyl-alpha-D-glucopyranosyl-1-phosphate and UMP-morpholidate. The uridine diphospho(13C6)glucose was used in the structural identification of (1-->3)-beta-D-glucan from Lolium multiflorum.
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Affiliation(s)
- Zoran Dinev
- School of Chemistry, University of Melbourne, Parkville, Victoria 3010, Australia
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46
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Read JA, Ahmed RA, Tanner ME. Efficient chemoenzymatic synthesis of ADP-D-glycero-beta-D-manno-heptose and a mechanistic study of ADP-L-glycero-D-manno-heptose 6-epimerase. Org Lett 2006; 7:2457-60. [PMID: 15932222 DOI: 10.1021/ol050774q] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] A chemoenzymatic synthesis of ADP-D-glycero-beta-D-manno-heptose (ADP-D,D-Hep) is described in which D,D-Hep 7-phosphate is converted to ADP-D,D-Hep by two biosynthetic enzymes. This strategy allows access to the 6''-deuterated analogue, which upon incubation with the epimerase showed complete retention of the isotopic label at the 6''-position. This provides evidence for a direct oxidation mechanism in which the hydride initially transferred to the NADP+ cofactor is subsequently returned to the same carbon in a nonstereospecific manner.
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Affiliation(s)
- Jay A Read
- Department of Chemistry, University of British Columbia, Vancouver, BC, Canada
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47
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Crich D, Banerjee A. Synthesis and stereoselective glycosylation of D- and L-glycero-beta-D-manno-heptopyranoses. Org Lett 2006; 7:1395-8. [PMID: 15787515 DOI: 10.1021/ol050224s] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] A method for the direct stereocontrolled synthesis of D- and L-glycero-beta-D-manno-heptopyranosides such as those found in the repeating unit of the O-specific polysaccharide from the CNCTC 113/92 LPS (serotype 54) is described. The method relies on the presence of a 4,6-O-benzylidene acetal to effect stereocontrol at the anomeric center; the configuration at C6 (L- or D-glycero) is of minimal importance.
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Affiliation(s)
- David Crich
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, USA.
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48
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Güzlek H, Graziani A, Kosma P. A short synthesis of D-glycero-D-manno-heptose 7-phosphate. Carbohydr Res 2005; 340:2808-11. [PMID: 16263101 DOI: 10.1016/j.carres.2005.10.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2005] [Accepted: 10/12/2005] [Indexed: 11/21/2022]
Abstract
D-glycero-D-manno-Heptopyranose 7-phosphate-an intermediate in the biosynthesis of nucleotide-activated heptoses-has been prepared in good overall yield from benzyl 5,6-dideoxy-2,3-O-isopropylidene-alpha-D-lyxo-(Z)-hept-5-enofuranoside by a short-step synthesis. Phosphitylation using the phosphoramidite procedure followed by in situ oxidation afforded the corresponding 7-O-phosphotriester derivative in high yield. Subsequent osmylation proceeded in good diastereoselectivity (4:1) to furnish the D-glycero-D-manno-configured derivative, which was separated from the L-glycero-L-gulo-isomer by chromatography. Hydrogenolysis led to simultaneous removal of the benzyl and isopropylidene groups and afforded the target compound in high yield, which serves as a substrate of bacterial heptose 7-phosphate kinases.
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Affiliation(s)
- Hacer Güzlek
- Department of Chemistry, University of Natural Resources and Applied Life Sciences, Muthgasse 18, A-1190 Vienna, Austria
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49
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Graziani A, Amer H, Zamyatina A, Hofinger A, Kosma P. Synthesis of C-glycosides related to glycero-β-d-manno-heptoses. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.tetasy.2004.11.065] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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50
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Graziani A, Zamyatina A, Kosma P. A convenient synthesis of GDP D-glycero-alpha-D-manno-heptopyranose. Carbohydr Res 2004; 339:147-51. [PMID: 14659681 DOI: 10.1016/j.carres.2003.09.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
GDP D-glycero-alpha-D-manno-Heptopyranose has been prepared in good overall yield from 2,3,4,6,7-penta-O-acetyl-D-glycero-D-manno-heptopyranose by a short-step synthesis. Phosphitylation using the phosphoramidite procedure afforded the alpha-anomer in high selectivity. Subsequent oxidation and partial deprotection gave the acetylated phosphate derivative, which was subjected to the coupling reaction with GMP-morpholidate to furnish the acetylated heptose nucleoside diphosphate in good yield. De-O-acetylation and final purification afforded the target GDP D-glycero-alpha-D-manno-heptopyranose, which serves as the substrate of the heptosyl transferase in Aneurinibacillus thermoaerophilus DSM 10155 and occurs as an intermediate in the biosynthesis of GDP 6-deoxy-heptose in Yersinia pseudotuberculosis.
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Affiliation(s)
- Andrea Graziani
- Institute of Chemistry, University of Natural Resources and Applied Life Sciences, Muthgasse 18, A-1190 Vienna, Austria
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