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Kowalczyk A, Babińska-Wensierska W, Lojkowska E, Kaczyński Z. The structure of O-polysaccharide isolated from the type strain of Pectobacterium versatile CFBP6051 T containing an erwiniose - higher branched monosaccharide. Carbohydr Res 2023; 524:108743. [PMID: 36669445 DOI: 10.1016/j.carres.2023.108743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 01/13/2023]
Abstract
Utilizing sugar, methylation, and absolute configurations analyses as well as NMR spectroscopy, the chemical repeating unit of the O-specific polysaccharide of Pectobacteriumversatile CFBP6051T was identified as: The polymer contains residues of an unusual, higher-branched monosaccharide, named erwiniose (3,6,8-trideoxy-4-C-(R-1-hydroxyethyl)-d-gulo-octose). Comparison of the P. versatile CFBP6051T O-polysaccharide with those isolated from strains of other Pectobacterium species indicated high differentiation in their structures within this genus.
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Affiliation(s)
- Agnieszka Kowalczyk
- Laboratory of Structural Biochemistry, Faculty of Chemistry, University of Gdansk, 63 Wita Stwosza, 80-308, Gdansk, Poland
| | - Weronika Babińska-Wensierska
- Laboratory of Plant Protection and Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdansk & Medical University of Gdansk, 58 Abrahama, 80-307, Gdansk, Poland
| | - Ewa Lojkowska
- Laboratory of Plant Protection and Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdansk & Medical University of Gdansk, 58 Abrahama, 80-307, Gdansk, Poland
| | - Zbigniew Kaczyński
- Laboratory of Structural Biochemistry, Faculty of Chemistry, University of Gdansk, 63 Wita Stwosza, 80-308, Gdansk, Poland.
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2
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Morgan KD, Williams DE, Ryan KS, Andersen RJ. Dentigerumycin F and G: dynamic structures retrieved through a genome-mining/nitrogen-NMR methodology. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153688] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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3
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Wilders AM, Henle J, Haibach MC, Swiatowiec R, Bien J, Henry RF, Asare SO, Wall AL, Shekhar S. Pd-Catalyzed Cross-Coupling of Hindered, Electron-Deficient Anilines with Bulky (Hetero)aryl Halides Using Biaryl Phosphorinane Ligands. ACS Catal 2020. [DOI: 10.1021/acscatal.0c04280] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Alison M. Wilders
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Jeremy Henle
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Michael C. Haibach
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Rafal Swiatowiec
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Jeffrey Bien
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Rodger F. Henry
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Shardrack O. Asare
- Analytical Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Amanda L. Wall
- Analytical Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Shashank Shekhar
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
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4
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Marchetti R, Bedini E, Gully D, Lanzetta R, Giraud E, Molinaro A, Silipo A. Rhodopseudomonas palustris Strain CGA009 Produces an O-Antigen Built up by a C-4-Branched Monosaccharide: Structural and Conformational Studies. Org Lett 2018; 20:3656-3660. [PMID: 29874087 DOI: 10.1021/acs.orglett.8b01439] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Here, the analysis of the peculiar homopolymeric O-chain, isolated from the lipopolysaccharide (LPS) of Rhodopseudomonas palustris strain CGA009, is reported. The O-chain is built up of a novel 4-C-branched sugar (12-deoxy-4- C-(d- altro-5,7,8,9-tetrahydroxyhexyl))-3- O-methyl-d-galactopyranose)) whose structure, absolute configuration, and conformational features were deduced by 2D NMR spectroscopy, optical rotation measurements, and molecular dynamics simulations.
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Affiliation(s)
- Roberta Marchetti
- Dipartimento di Scienze Chimiche , Complesso Universitario Monte Sant'Angelo, Università di Napoli Federico II , Via Cintia 4 , I-80126 Napoli , Italy
| | - Emiliano Bedini
- Dipartimento di Scienze Chimiche , Complesso Universitario Monte Sant'Angelo, Università di Napoli Federico II , Via Cintia 4 , I-80126 Napoli , Italy
| | - Djamel Gully
- IRD, Laboratoire des Symbioses Tropicales et Méditerranéennes (LSTM) , UMR IRD/SupAgro/INRA/UM2/CIRAD, TA-A82/J - Campus de Baillarguet , Montpellier 34398 Cedex 5 , France
| | - Rosa Lanzetta
- Dipartimento di Scienze Chimiche , Complesso Universitario Monte Sant'Angelo, Università di Napoli Federico II , Via Cintia 4 , I-80126 Napoli , Italy
| | - Eric Giraud
- IRD, Laboratoire des Symbioses Tropicales et Méditerranéennes (LSTM) , UMR IRD/SupAgro/INRA/UM2/CIRAD, TA-A82/J - Campus de Baillarguet , Montpellier 34398 Cedex 5 , France
| | - Antonio Molinaro
- Dipartimento di Scienze Chimiche , Complesso Universitario Monte Sant'Angelo, Università di Napoli Federico II , Via Cintia 4 , I-80126 Napoli , Italy
| | - Alba Silipo
- Dipartimento di Scienze Chimiche , Complesso Universitario Monte Sant'Angelo, Università di Napoli Federico II , Via Cintia 4 , I-80126 Napoli , Italy
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5
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Li W, Silipo A, Molinaro A, Yu B. Synthesis of bradyrhizose, a unique inositol-fused monosaccharide relevant to a Nod-factor independent nitrogen fixation. Chem Commun (Camb) 2015; 51:6964-7. [DOI: 10.1039/c5cc00752f] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Bradyrhizose, a unique C10 monosaccharide relevant to a Nod-factor independent nitrogen-fixing symbiosis, was synthesized.
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Affiliation(s)
- Wei Li
- State Key Laboratory of Bio-organic and Natural Products Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Alba Silipo
- Department of Chemical Sciences
- University of Naples “Federico II”
- 80126 Napoli
- Italy
| | - Antonio Molinaro
- Department of Chemical Sciences
- University of Naples “Federico II”
- 80126 Napoli
- Italy
| | - Biao Yu
- State Key Laboratory of Bio-organic and Natural Products Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
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6
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Nagy PI. Competing intramolecular vs. intermolecular hydrogen bonds in solution. Int J Mol Sci 2014; 15:19562-633. [PMID: 25353178 PMCID: PMC4264129 DOI: 10.3390/ijms151119562] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 09/17/2014] [Accepted: 10/13/2014] [Indexed: 11/17/2022] Open
Abstract
A hydrogen bond for a local-minimum-energy structure can be identified according to the definition of the International Union of Pure and Applied Chemistry (IUPAC recommendation 2011) or by finding a special bond critical point on the density map of the structure in the framework of the atoms-in-molecules theory. Nonetheless, a given structural conformation may be simply favored by electrostatic interactions. The present review surveys the in-solution competition of the conformations with intramolecular vs. intermolecular hydrogen bonds for different types of small organic molecules. In their most stable gas-phase structure, an intramolecular hydrogen bond is possible. In a protic solution, the intramolecular hydrogen bond may disrupt in favor of two solute-solvent intermolecular hydrogen bonds. The balance of the increased internal energy and the stabilizing effect of the solute-solvent interactions regulates the new conformer composition in the liquid phase. The review additionally considers the solvent effects on the stability of simple dimeric systems as revealed from molecular dynamics simulations or on the basis of the calculated potential of mean force curves. Finally, studies of the solvent effects on the type of the intermolecular hydrogen bond (neutral or ionic) in acid-base complexes have been surveyed.
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Affiliation(s)
- Peter I Nagy
- Center for Drug Design and Development, the University of Toledo, Toledo, OH 43606-3390, USA.
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7
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Sharif EU, Wang HYL, Akhmedov NG, O’Doherty GA. Merremoside D: de novo synthesis of the purported structure, NMR analysis, and comparison of spectral data. Org Lett 2014; 16:492-5. [PMID: 24354696 PMCID: PMC4078405 DOI: 10.1021/ol403369h] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The first synthesis of the purported structure of Merremoside D has been achieved in 22 longest linear steps. The de novo asymmetric synthesis relied on the use of asymmetric catalysis to selectively install all 21 stereocenters in the final compounds from commercially available achiral starting materials. Adiabatic gradient 2D NMR techniques (gHSQCAD, gHMBCAD, gH2BCAD, gHSQCTOXYAD, ROESYAD) were used to completely assign the structure of synthetic Merremoside D. Comparison of our assignments with the limited NMR data reported for natural Merremoside D allows for the tentative confirmation of its structure.
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Affiliation(s)
- Ehesan U. Sharif
- Dept of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115
| | - Hua-Yu Leo Wang
- Dept of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115
| | | | - George A. O’Doherty
- Dept of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115
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8
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Bajaj SO, Sharif EU, Akhmedov NG, O'Doherty GA. De novo asymmetric synthesis of the mezzettiaside family of natural products via the iterative use of a dual B-/Pd-catalyzed glycosylation. Chem Sci 2014; 5:2230-2234. [PMID: 25729559 DOI: 10.1039/c4sc00593g] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The first synthesis of any and all members of the mezzettiaside family of natural products has been achieved. The reported synthesis features the iterative use of the Taylor catalyst in a dual nucleophilic boron/electrophilic palladium catalyzed regioselective glycosylation. In addition, the de novo approach utilizes atomless protecting groups and the minimal use of protecting groups (2 chloroacetates for the synthesis of 10 natural products). These divergent syntheses occurred in a range of 13 to 22 longest linear steps and required only 41 total steps to prepare the entire family of mezzettiasides.
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Affiliation(s)
- Sumit O Bajaj
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115
| | - Ehesan U Sharif
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115
| | - Novruz G Akhmedov
- Department of Chemistry, West Virginia University, Morgantown, WV 26506
| | - George A O'Doherty
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115
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Rombouts Y, Burguière A, Maes E, Coddeville B, Elass E, Guérardel Y, Kremer L. Mycobacterium marinum lipooligosaccharides are unique caryophyllose-containing cell wall glycolipids that inhibit tumor necrosis factor-alpha secretion in macrophages. J Biol Chem 2009; 284:20975-88. [PMID: 19491094 DOI: 10.1074/jbc.m109.011429] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Earlier studies have reported a role for lipooligosaccharides (LOSs) in sliding motility, biofilm formation, and infection of host macrophages in Mycobacterium marinum. Although a LOS biosynthetic gene cluster has recently been identified in this species, many structural features of the different LOSs (LOS-I-IV) are still unknown. This clearly hampers assessing the contribution of each LOS in mycobacterial virulence as well as structure-function-based studies of these important cell wall-associated glycolipids. In this study, we have identified an M. marinum isolate, M. marinum 7 (Mma7), which failed to produce LOS-IV but instead accumulated large amounts of LOS-III. Local genomic comparison of the LOS biosynthetic cluster established the presence of a highly disorganized region in Mma7 compared with the standard M strain, characterized by multiple genetic lesions that are likely to be responsible for the defect in LOS-IV production in Mma7. Our results indicate that the glycosyltransferase LosA alone is not sufficient to ensure LOS-IV biosynthesis. The availability of different M. marinum strains allowed us to determine the precise structure of individual LOSs through the combination of mass spectrometric and NMR techniques. In particular, we established the presence of two related 4-C-branched monosaccharides within LOS-II to IV sequences, of which one was never identified before. In addition, we provided evidence that LOSs are capable of inhibiting the secretion of tumor necrosis factor-alpha in lipopolysaccharide-stimulated human macrophages. This unexpected finding suggests that these cell wall-associated glycolipids represent key effectors capable of interfering with the establishment of a pro-inflammatory response.
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Affiliation(s)
- Yoann Rombouts
- Unité de Glycobiologie Structurale et Fonctionnelle, CNRS UMR 8576, IFR 147, Université des Sciences et Technologies de Lille, 59655 Villeneuve d'Ascq Cedex, France
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10
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Saaidi PL, Guyonnet M, Jeanneau E, Fleurat-Lessard P, Hasserodt J. Trimerization Products of Trifluoroacetone: Critical Solvent Effect on Position and Kinetics of Anomeric Equilibria. J Org Chem 2008; 73:1209-16. [PMID: 18198884 DOI: 10.1021/jo701669p] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pierre-Loïc Saaidi
- Laboratoire de Chimie, UMR CNRS 5182, Université de Lyon-ENS, 46 Allée d'Italie, 69364 Lyon, France, and Centre de Diffractométrie Henri Longchambon, Université de Lyon-UCB, 43 bd du 11 Novembre 1918, 69622 Villeurbanne, France
| | - Mathieu Guyonnet
- Laboratoire de Chimie, UMR CNRS 5182, Université de Lyon-ENS, 46 Allée d'Italie, 69364 Lyon, France, and Centre de Diffractométrie Henri Longchambon, Université de Lyon-UCB, 43 bd du 11 Novembre 1918, 69622 Villeurbanne, France
| | - Erwann Jeanneau
- Laboratoire de Chimie, UMR CNRS 5182, Université de Lyon-ENS, 46 Allée d'Italie, 69364 Lyon, France, and Centre de Diffractométrie Henri Longchambon, Université de Lyon-UCB, 43 bd du 11 Novembre 1918, 69622 Villeurbanne, France
| | - Paul Fleurat-Lessard
- Laboratoire de Chimie, UMR CNRS 5182, Université de Lyon-ENS, 46 Allée d'Italie, 69364 Lyon, France, and Centre de Diffractométrie Henri Longchambon, Université de Lyon-UCB, 43 bd du 11 Novembre 1918, 69622 Villeurbanne, France
| | - Jens Hasserodt
- Laboratoire de Chimie, UMR CNRS 5182, Université de Lyon-ENS, 46 Allée d'Italie, 69364 Lyon, France, and Centre de Diffractométrie Henri Longchambon, Université de Lyon-UCB, 43 bd du 11 Novembre 1918, 69622 Villeurbanne, France
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Xu J, Tan T, Janson JC. Mixed-mode retention mechanism for (−)-epigallocatechin gallate on a 12% cross-linked agarose gel media. J Chromatogr A 2006; 1137:49-55. [PMID: 17049539 DOI: 10.1016/j.chroma.2006.10.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2006] [Revised: 09/27/2006] [Accepted: 10/02/2006] [Indexed: 11/25/2022]
Abstract
The adsorption behaviour of (-)-epigallocatechin gallate (EGCG), the major polyphenolic substance in green tea extracts, on the cross-linked agarose gel Superose 12 HR 10/30, has been studied using a variety of solvent systems and shown to be based on a mixture of hydrogen bonding and hydrophobic interaction. The hydrogen bonding was studied in acetonitrile in the presence of different co-solvents possessing varying hydrogen bond donor (HBD) and/or hydrogen bond acceptor (HBA) characteristics. The HBA-value of the co-solvent had the highest effect whereas the HBD-value played a subordinate role. Retention due to hydrophobic interaction could be demonstrated when mobile phases containing high water content were applied. The retention of EGCG, and its analogues (-)-epigallocatechin (EGC) and (-)-catechin (C) were thus shown to be dependent on the polarity of the organic modifiers added. However, the elution order of EGC and C, was inversed to that observed in reversed phase chromatography, indicating that some hydrogen bonding was still in effect. The retardation of EGCG in the presence of a wide concentration range of acetonitrile in water confirmed the interpretation that the retention mechanism is of mixed-mode character based on both hydrogen bonding and hydrophobic interaction.
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Affiliation(s)
- Jun Xu
- Department of Bioengineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
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