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Unione L, Ammerlaan ANA, Bosman GP, Uslu E, Liang R, Broszeit F, van der Woude R, Liu Y, Ma S, Liu L, Gómez-Redondo M, Bermejo IA, Valverde P, Diercks T, Ardá A, de Vries RP, Boons GJ. Probing altered receptor specificities of antigenically drifting human H3N2 viruses by chemoenzymatic synthesis, NMR, and modeling. Nat Commun 2024; 15:2979. [PMID: 38582892 PMCID: PMC10998905 DOI: 10.1038/s41467-024-47344-y] [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: 06/08/2023] [Accepted: 03/25/2024] [Indexed: 04/08/2024] Open
Abstract
Prototypic receptors for human influenza viruses are N-glycans carrying α2,6-linked sialosides. Due to immune pressure, A/H3N2 influenza viruses have emerged with altered receptor specificities that bind α2,6-linked sialosides presented on extended N-acetyl-lactosamine (LacNAc) chains. Here, binding modes of such drifted hemagglutinin's (HAs) are examined by chemoenzymatic synthesis of N-glycans having 13C-labeled monosaccharides at strategic positions. The labeled glycans are employed in 2D STD-1H by 13C-HSQC NMR experiments to pinpoint which monosaccharides of the extended LacNAc chain engage with evolutionarily distinct HAs. The NMR data in combination with computation and mutagenesis demonstrate that mutations distal to the receptor binding domain of recent HAs create an extended binding site that accommodates with the extended LacNAc chain. A fluorine containing sialoside is used as NMR probe to derive relative binding affinities and confirms the contribution of the extended LacNAc chain for binding.
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Affiliation(s)
- Luca Unione
- Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG, Utrecht, The Netherlands.
- CICbioGUNE, Basque Research & Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, 48160, Derio, Bizkaia, Spain.
- Ikerbasque, Basque Foundation for Science, Euskadi Plaza 5, 48009, Bilbao, Bizkaia, Spain.
| | - Augustinus N A Ammerlaan
- Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG, Utrecht, The Netherlands
| | - Gerlof P Bosman
- Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG, Utrecht, The Netherlands
| | - Elif Uslu
- Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG, Utrecht, The Netherlands
| | - Ruonan Liang
- Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG, Utrecht, The Netherlands
| | - Frederik Broszeit
- Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG, Utrecht, The Netherlands
| | - Roosmarijn van der Woude
- Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG, Utrecht, The Netherlands
| | - Yanyan Liu
- Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG, Utrecht, The Netherlands
| | - Shengzhou Ma
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Rd, Athens, GA, 30602, USA
| | - Lin Liu
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Rd, Athens, GA, 30602, USA
| | - Marcos Gómez-Redondo
- CICbioGUNE, Basque Research & Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, 48160, Derio, Bizkaia, Spain
| | - Iris A Bermejo
- CICbioGUNE, Basque Research & Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, 48160, Derio, Bizkaia, Spain
| | - Pablo Valverde
- CICbioGUNE, Basque Research & Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, 48160, Derio, Bizkaia, Spain
| | - Tammo Diercks
- CICbioGUNE, Basque Research & Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, 48160, Derio, Bizkaia, Spain
| | - Ana Ardá
- CICbioGUNE, Basque Research & Technology Alliance (BRTA), Bizkaia Technology Park, Building 800, 48160, Derio, Bizkaia, Spain
- Ikerbasque, Basque Foundation for Science, Euskadi Plaza 5, 48009, Bilbao, Bizkaia, Spain
| | - Robert P de Vries
- Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG, Utrecht, The Netherlands.
| | - Geert-Jan Boons
- Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG, Utrecht, The Netherlands.
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Rd, Athens, GA, 30602, USA.
- Bijvoet Center for Biomolecular Research, Utrecht University, Utrecht, The Netherlands.
- Department of Chemistry, University of Georgia, Athens, GA, 30602, USA.
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2
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Effect of ultrasonication on the protein–polysaccharide complexes: a review. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-022-01567-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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3
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Shahzad-Ul-Hussan S, Sastry M, Lemmin T, Soto C, Loesgen S, Scott DA, Davison JR, Lohith K, O'Connor R, Kwong PD, Bewley CA. Insights from NMR Spectroscopy into the Conformational Properties of Man-9 and Its Recognition by Two HIV Binding Proteins. Chembiochem 2017; 18:764-771. [PMID: 28166380 PMCID: PMC5557091 DOI: 10.1002/cbic.201600665] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Indexed: 12/12/2022]
Abstract
Man9 GlcNAc2 (Man-9) present at the surface of HIV makes up the binding sites of several HIV-neutralizing agents and the mammalian lectin DC-SIGN, which is involved in cellular immunity and trans-infections. We describe the conformational properties of Man-9 in its free state and when bound by the HIV entry-inhibitor protein microvirin (MVN), and define the minimum epitopes of both MVN and DC-SIGN by using NMR spectroscopy. To facilitate the implementation of 3D 13 C-edited spectra to deconvolute spectral overlap and to determine the solution structure of Man-9, we developed a robust expression system for the production of 13 C,15 N-labeled glycans in mammalian cells. The studies reveal that Man-9 interacts with HIV-binding proteins through distinct epitopes and adopts diverse conformations in the bound state. In combination with molecular dynamics simulations we observed receptor-bound conformations to be sampled by Man-9 in the free state, thus suggesting a conformational selection mechanism for diverse recognition.
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Affiliation(s)
- Syed Shahzad-Ul-Hussan
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, 8 Center Drive, Bethesda, MD, 20892, USA
- Structural Biology Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, 40 Convent Drive, Bethesda, MD, 20892, USA
- Present address: Department of Biology, SBA School of Science and Engineering, Lahore University of Management Sciences, Lahore, 54792, Pakistan
| | - Mallika Sastry
- Structural Biology Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, 40 Convent Drive, Bethesda, MD, 20892, USA
| | - Thomas Lemmin
- Structural Biology Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, 40 Convent Drive, Bethesda, MD, 20892, USA
- Structural Bioinformatics Core Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, 40 Convent Drive, Bethesda, MD, 20892, USA
| | - Cinque Soto
- Structural Biology Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, 40 Convent Drive, Bethesda, MD, 20892, USA
- Structural Bioinformatics Core Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, 40 Convent Drive, Bethesda, MD, 20892, USA
| | - Sandra Loesgen
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, 8 Center Drive, Bethesda, MD, 20892, USA
| | - Danielle A Scott
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, 8 Center Drive, Bethesda, MD, 20892, USA
| | - Jack R Davison
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, 8 Center Drive, Bethesda, MD, 20892, USA
| | - Katheryn Lohith
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, 8 Center Drive, Bethesda, MD, 20892, USA
| | - Robert O'Connor
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, 8 Center Drive, Bethesda, MD, 20892, USA
| | - Peter D Kwong
- Structural Biology Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, 40 Convent Drive, Bethesda, MD, 20892, USA
- Structural Bioinformatics Core Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, 40 Convent Drive, Bethesda, MD, 20892, USA
| | - Carole A Bewley
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, 8 Center Drive, Bethesda, MD, 20892, USA
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4
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Pérez-Victoria I, Boutureira O, Claridge TDW, Davis BG. Glycosyldiselenides as lectin ligands detectable by NMR in biofluids. Chem Commun (Camb) 2016; 51:12208-11. [PMID: 26134709 DOI: 10.1039/c5cc03952e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The ability of glycosyldiselenides to act as lectin ligands and their selective detection in plasma by (77)Se NMR is reported.
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Affiliation(s)
- Ignacio Pérez-Victoria
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, UK.
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5
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Künze G, Theisgen S, Huster D. Backbone ¹H, ¹⁵N, and ¹³C and side chain ¹³Cβ NMR chemical shift assignment of murine interleukin-10. BIOMOLECULAR NMR ASSIGNMENTS 2014; 8:375-8. [PMID: 23982919 DOI: 10.1007/s12104-013-9521-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Accepted: 08/16/2013] [Indexed: 05/22/2023]
Abstract
Almost complete assignment of backbone (1)H, (13)C, (15)N and side chain (13)Cβ resonances for the immune-regulatory cytokine IL-10 is reported. The protein was overexpressed in Escherichia coli and was refolded from inclusion bodies. The point mutation C149Y was introduced to suppress incorrect disulfide bond formation and to improve protein refolding.
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Affiliation(s)
- Georg Künze
- Institute of Medical Physics and Biophysics, University of Leipzig, Härtelstraße 16/18, 04107, Leipzig, Germany,
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6
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Ley NB, Rowe ML, Williamson RA, Howard MJ. Optimising selective excitation pulses to maximise saturation transfer difference NMR spectroscopy. RSC Adv 2014; 4:7347-7351. [PMID: 27182436 DOI: 10.1039/c3ra46246c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple method is presented that optimizes the STD NMR Gaussian pulse to deliver significant increases in STD amplification factors with minimal perturbation of the ligand. This approach is practically demonstrated using the wheat-germ agglutinin/N-acetyl-D-glucosamine protein-ligand system.
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Affiliation(s)
- Nathan B Ley
- School of Biosciences, University of Kent, Canterbury CT2 7NJ, UK
| | - Michelle L Rowe
- School of Biosciences, University of Kent, Canterbury CT2 7NJ, UK
| | | | - Mark J Howard
- School of Biosciences, University of Kent, Canterbury CT2 7NJ, UK
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7
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Zhang Y, Yamaguchi T, Kato K. New NMR Tools for Characterizing the Dynamic Conformations and Interactions of Oligosaccharides. CHEM LETT 2013. [DOI: 10.1246/cl.130789] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ying Zhang
- Institute for Molecular Science and Okazaki Institute for Integrative Bioscience, National Institutes of Natural Sciences
- Department of Functional Molecular Science, The Graduate University for Advanced Studies
- Graduate School of Pharmaceutical Sciences, Nagoya City University
| | - Takumi Yamaguchi
- Institute for Molecular Science and Okazaki Institute for Integrative Bioscience, National Institutes of Natural Sciences
- Department of Functional Molecular Science, The Graduate University for Advanced Studies
- Graduate School of Pharmaceutical Sciences, Nagoya City University
| | - Koichi Kato
- Institute for Molecular Science and Okazaki Institute for Integrative Bioscience, National Institutes of Natural Sciences
- Department of Functional Molecular Science, The Graduate University for Advanced Studies
- Graduate School of Pharmaceutical Sciences, Nagoya City University
- The Glycoscience Institute, Ochanomizu University
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8
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Ramos-Soriano J, Niss U, Angulo J, Angulo M, Moreno-Vargas AJ, Carmona AT, Ohlson S, Robina I. Synthesis, Biological Evaluation, WAC and NMR Studies ofS-Galactosides and Non-Carbohydrate Ligands of Cholera Toxin Based on Polyhydroxyalkylfuroate Moieties. Chemistry 2013; 19:17989-8003. [DOI: 10.1002/chem.201302786] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 08/22/2013] [Indexed: 01/25/2023]
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9
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Arab-Jaziri F, Bissaro B, Barbe S, Saurel O, Débat H, Dumon C, Gervais V, Milon A, André I, Fauré R, O’Donohue MJ. Functional roles of H98 and W99 and β2α2 loop dynamics in the α-l
-arabinofuranosidase from Thermobacillus xylanilyticus. FEBS J 2012; 279:3598-3611. [DOI: 10.1111/j.1742-4658.2012.08720.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Schwizer D, Patton JT, Cutting B, Smieško M, Wagner B, Kato A, Weckerle C, Binder FPC, Rabbani S, Schwardt O, Magnani JL, Ernst B. Pre-organization of the core structure of E-selectin antagonists. Chemistry 2011; 18:1342-51. [PMID: 22213563 DOI: 10.1002/chem.201102884] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Indexed: 11/09/2022]
Abstract
A new class of N-acetyl-D-glucosamine (GlcNAc) mimics for E-selectin antagonists was designed and synthesized. The mimic consists of a cyclohexane ring substituted with alkyl substituents adjacent to the linking position of the fucose moiety. Incorporation into E-selectin antagonists led to the test compounds 8 and the 2'-benzoylated analogues 21, which exhibit affinities in the low micromolar range. By using saturation transfer difference (STD)-NMR it could be shown that the increase in affinity does not result from an additional hydrophobic contact of the alkyl substituent with the target protein E-selectin, but rather from a steric effect stabilizing the antagonist in its bioactive conformation. The loss of affinity found for antagonists 10 and 35 containing a methyl substituent in a remote position (and therefore unable to support to the stabilization of the core) further supports this hypothesis. Finally, when a GlcNAc mimetic containing two methyl substituents (52 and 53) was used, in which one methyl was positioned adjacent to the fucose linking position and the other was in a remote position, the affinity was regained.
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Affiliation(s)
- Daniel Schwizer
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
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11
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Jakeman DL, Sadeghi-Khomami A. A β-(1,2)-Glycosynthase and an Attempted Selection Method for the Directed Evolution of Glycosynthases. Biochemistry 2011; 50:10359-66. [DOI: 10.1021/bi201438q] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- David L. Jakeman
- College of Pharmacy, Dalhousie University, 5968 College Street, P.O. Box
15000, Halifax, Nova Scotia B3H 4R2, Canada
- Department of Chemistry, Dalhousie University, 6274 Coberg Road, P.O. Box 15000,
Halifax, Nova Scotia B3H 4R2, Canada
| | - Ali Sadeghi-Khomami
- College of Pharmacy, Dalhousie University, 5968 College Street, P.O. Box
15000, Halifax, Nova Scotia B3H 4R2, Canada
- Department of Chemistry, Dalhousie University, 6274 Coberg Road, P.O. Box 15000,
Halifax, Nova Scotia B3H 4R2, Canada
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12
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Maggioni A, Meier J, Routier F, Haselhorst T, Tiralongo J. Direct investigation of the Aspergillus GDP-mannose transporter by STD NMR spectroscopy. Chembiochem 2011; 12:2421-5. [PMID: 21953835 DOI: 10.1002/cbic.201100483] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Indexed: 01/02/2023]
Affiliation(s)
- Andrea Maggioni
- Institute for Glycomics, Griffith University, Queensland, Australia
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13
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Kamiya Y, Yamamoto S, Chiba Y, Jigami Y, Kato K. Overexpression of a homogeneous oligosaccharide with 13C labeling by genetically engineered yeast strain. JOURNAL OF BIOMOLECULAR NMR 2011; 50:397-401. [PMID: 21698488 DOI: 10.1007/s10858-011-9525-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Accepted: 05/25/2011] [Indexed: 05/31/2023]
Abstract
This report describes a novel method for overexpression of (13)C-labeled oligosaccharides using genetically engineered Saccharomyces cerevisiae cells, in which a homogeneous high-mannose-type oligosaccharide accumulates because of deletions of genes encoding three enzymes involved in the processing pathway of asparagine-linked oligosaccharides in the Golgi complex. Using uniformly (13)C-labeled glucose as the sole carbon source in the culture medium of these engineered yeast cells, high yields of the isotopically labeled Man(8)GlcNAc(2) oligosaccharide could be successfully harvested from glycoprotein extracts of the cells. Furthermore, (13)C labeling at selected positions of the sugar residues in the oligosaccharide could be achieved using a site-specific (13)C-enriched glucose as the metabolic precursor, facilitating NMR spectral assignments. The (13)C-labeling method presented provides the technical basis for NMR analyses of structures, dynamics, and interactions of larger, branched oligosaccharides.
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Affiliation(s)
- Yukiko Kamiya
- Okazaki Institute for Integrative Bioscience and Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki, Aichi, 444-8787, Japan
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14
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Theillet FX, Frank M, Vulliez-Le Normand B, Simenel C, Hoos S, Chaffotte A, Bélot F, Guerreiro C, Nato F, Phalipon A, Mulard LA, Delepierre M. Dynamic aspects of antibody:oligosaccharide complexes characterized by molecular dynamics simulations and saturation transfer difference nuclear magnetic resonance. Glycobiology 2011; 21:1570-9. [PMID: 21610193 DOI: 10.1093/glycob/cwr059] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Carbohydrates are likely to maintain significant conformational flexibility in antibody (Ab):carbohydrate complexes. As demonstrated herein for the protective monoclonal Ab (mAb) F22-4 recognizing the Shigella flexneri 2a O-antigen (O-Ag) and numerous synthetic oligosaccharide fragments thereof, the combination of molecular dynamics simulations and nuclear magnetic resonance saturation transfer difference experiments, supported by physicochemical analysis, allows us to determine the binding epitope and its various contributions to affinity without using any modified oligosaccharides. Moreover, the methods used provide insights into ligand flexibility in the complex, thus enabling a better understanding of the Ab affinities observed for a representative set of synthetic O-Ag fragments. Additionally, these complementary pieces of information give evidence to the ability of the studied mAb to recognize internal as well as terminal epitopes of its cognate polysaccharide antigen. Hence, we show that an appropriate combination of computational and experimental methods provides a basis to explore carbohydrate functional mimicry and receptor binding. The strategy may facilitate the design of either ligands or carbohydrate recognition domains, according to needed improvements of the natural carbohydrate:receptor properties.
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15
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Abstract
Glycan microarrays are emerging as increasingly used screening tools with a high potential for unraveling protein-carbohydrate interactions: probing hundreds or even thousands of glycans in parallel, they provide the researcher with a vast amount of data in a short time-frame, while using relatively small amounts of analytes. Natural glycan microarrays focus on the glycans' repertoire of natural sources, including both well-defined structures as well as still-unknown ones. This article compares different natural glycan microarray strategies. Glycan probes may comprise oligosaccharides from glycoproteins as well as glycolipids and polysaccharides. Oligosaccharides may be purified from scarce biological samples that are of particular relevance for the carbohydrate-binding protein to be studied. We give an overview of strategies for glycan isolation, derivatization, fractionation, immobilization and structural characterization. Detection methods such as fluorescence analysis and surface plasmon resonance are summarized. The importance of glycan density and multivalency is discussed. Furthermore, some applications of natural glycan microarrays for studying lectin and antibody binding are presented.
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Affiliation(s)
- Emanuela Lonardi
- Biomolecular Mass Spectrometry Unit, Department of Parasitology, PO Box 9600, 2300 RC Leiden, The Netherlands
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16
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Clément MJ, Tissot B, Chevolot L, Adjadj E, Du Y, Curmi PA, Daniel R. NMR characterization and molecular modeling of fucoidan showing the importance of oligosaccharide branching in its anticomplementary activity. Glycobiology 2010; 20:883-94. [PMID: 20356826 DOI: 10.1093/glycob/cwq046] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Fucoidan is a potent inhibitor of the human complement system whose activity is mediated through interactions with certain proteins belonging to the classical pathway, particularly the protein C4. Branched fucoidan oligosaccharides displayed a higher anticomplementary activity as compared to linear structures. Nuclear magnetic resonance (NMR) characterization of the branched oligosaccharides and saturation transfer difference-NMR experiment of the interaction with the protein C4 allowed the identification of the glycan residues in close contact with the target protein. Transferred nuclear Overhauser effect spectroscopy experiment and molecular modeling of fucoidan oligosaccharides indicated that the presence of side chains reduces the flexibility of the oligosaccharide backbone, which thus adopts a conformation which is very close to the one recognized by the protein C4. Together, these results suggest that branching of fucoidan oligosaccharides, determining their conformational state, has a major impact on their anticomplementary activity.
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Affiliation(s)
- Marie-Jeanne Clément
- CNRS UMR 8587, Laboratoire Analyse et Environnement, Université d'Evry Val d'Essonne, rue du Père Jarlan, 91025 Evry Cedex, France
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17
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Yamaguchi Y, Kato K. Dynamics and Interactions of Glycoconjugates Probed by Stable-Isotope-Assisted NMR Spectroscopy. Methods Enzymol 2010; 478:305-22. [DOI: 10.1016/s0076-6879(10)78015-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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18
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Kövér KE, Szilágyi L, Batta G, Uhrín D, Jiménez-Barbero J. Biomolecular Recognition by Oligosaccharides and Glycopeptides: The NMR Point of View. COMPREHENSIVE NATURAL PRODUCTS II 2010:197-246. [DOI: 10.1016/b978-008045382-8.00193-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
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19
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Wagstaff JL, Vallath S, Marshall JF, Williamson RA, Howard MJ. Two-dimensional heteronuclear saturation transfer difference NMR reveals detailed integrin αvβ6 protein–peptide interactions. Chem Commun (Camb) 2010; 46:7533-5. [DOI: 10.1039/c0cc01846e] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Abstract
More than half of all human proteins are glycosylated. Glycosylation defines the adhesive properties of glycoconjugates and it is largely through glycan-protein interactions that cell-cell and cell-pathogen contacts occur. Not surprisingly, considering the central role they play in molecular encounters, glycoprotein and carbohydrate-based drugs and therapeutics represent a greater than $20 billion market. Glycomics, the study of glycan expression in biological systems, relies on effective analytical techniques for correlation of glycan structure with function. This overview summarizes techniques developed historically for glycan characterization as well as recent trends. Derivatization methods key to both traditional and modern approaches for glycoanalysis are described. Monosaccharide compositional analysis is fundamental to any effort to understand glycan structure-function relationships. Chromatographic and electrophoretic separations are key parts of any glycoanalytical workflow. Mass spectrometry and nuclear magnetic resonance are complementary instrumental techniques for glycan analysis. Finally, microarrays are emerging as powerful new tools for dynamic analysis of glycan expression.
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Affiliation(s)
- Alicia M Bielik
- Department of Biochemistry, Boston University School of Medicine, Boston, MA, USA
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21
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Bhunia A, Schwardt O, Gäthje H, Gao GP, Kelm S, Benie AJ, Hricovini M, Peters T, Ernst B. Consistent bioactive conformation of the Neu5Acalpha(2-->3)Gal epitope upon lectin binding. Chembiochem 2009; 9:2941-5. [PMID: 18850605 DOI: 10.1002/cbic.200800458] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Anirban Bhunia
- Institute of Chemistry, University of Luebeck, Luebeck, Germany
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22
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Pérez-Victoria I, Kemper S, Patel MK, Edwards JM, Errey JC, Primavesi LF, Paul MJ, Claridge TDW, Davis BG. Saturation transfer difference NMR reveals functionally essential kinetic differences for a sugar-binding repressor protein. Chem Commun (Camb) 2009:5862-4. [DOI: 10.1039/b913489a] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Fehér K, Groves P, Batta G, Jiménez-Barbero J, Muhle-Goll C, Kövér KE. Competition Saturation Transfer Difference Experiments Improved with Isotope Editing and Filtering Schemes in NMR-Based Screening. J Am Chem Soc 2008; 130:17148-53. [DOI: 10.1021/ja804468k] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Krisztina Fehér
- MPI for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany, and EMBL, Meyerhofstrasse 1, 69117 Heidelberg, Germany, Instituto de Tecnologia Química e Biológica, Av. da República (EAN) 2781-901 Oeiras, Portugal, Department of Protein Science, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain, Department of Biochemistry, University of Debrecen, Egyetem tér 1, H-4010 Debrecen, Hungary, and Department of Inorganic and Analytical Chemistry, University of Debrecen,
| | - Patrick Groves
- MPI for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany, and EMBL, Meyerhofstrasse 1, 69117 Heidelberg, Germany, Instituto de Tecnologia Química e Biológica, Av. da República (EAN) 2781-901 Oeiras, Portugal, Department of Protein Science, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain, Department of Biochemistry, University of Debrecen, Egyetem tér 1, H-4010 Debrecen, Hungary, and Department of Inorganic and Analytical Chemistry, University of Debrecen,
| | - Gyula Batta
- MPI for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany, and EMBL, Meyerhofstrasse 1, 69117 Heidelberg, Germany, Instituto de Tecnologia Química e Biológica, Av. da República (EAN) 2781-901 Oeiras, Portugal, Department of Protein Science, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain, Department of Biochemistry, University of Debrecen, Egyetem tér 1, H-4010 Debrecen, Hungary, and Department of Inorganic and Analytical Chemistry, University of Debrecen,
| | - Jesús Jiménez-Barbero
- MPI for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany, and EMBL, Meyerhofstrasse 1, 69117 Heidelberg, Germany, Instituto de Tecnologia Química e Biológica, Av. da República (EAN) 2781-901 Oeiras, Portugal, Department of Protein Science, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain, Department of Biochemistry, University of Debrecen, Egyetem tér 1, H-4010 Debrecen, Hungary, and Department of Inorganic and Analytical Chemistry, University of Debrecen,
| | - Claudia Muhle-Goll
- MPI for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany, and EMBL, Meyerhofstrasse 1, 69117 Heidelberg, Germany, Instituto de Tecnologia Química e Biológica, Av. da República (EAN) 2781-901 Oeiras, Portugal, Department of Protein Science, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain, Department of Biochemistry, University of Debrecen, Egyetem tér 1, H-4010 Debrecen, Hungary, and Department of Inorganic and Analytical Chemistry, University of Debrecen,
| | - Katalin E. Kövér
- MPI for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany, and EMBL, Meyerhofstrasse 1, 69117 Heidelberg, Germany, Instituto de Tecnologia Química e Biológica, Av. da República (EAN) 2781-901 Oeiras, Portugal, Department of Protein Science, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain, Department of Biochemistry, University of Debrecen, Egyetem tér 1, H-4010 Debrecen, Hungary, and Department of Inorganic and Analytical Chemistry, University of Debrecen,
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24
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Ruan KH, Wijaya C, Cervantes V, Wu J. Characterization of the prostaglandin H2 mimic: binding to the purified human thromboxane A2 receptor in solution. Arch Biochem Biophys 2008; 477:396-403. [PMID: 18590695 PMCID: PMC2572108 DOI: 10.1016/j.abb.2008.05.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2008] [Revised: 05/22/2008] [Accepted: 05/29/2008] [Indexed: 11/17/2022]
Abstract
For decades, the binding of prostaglandin H(2) (PGH(2)) to multiple target proteins of unrelated protein structures which mediate diverse biological functions has remained a real mystery in the field of eicosanoid biology. Here, we report that the structure of a PGH(2) mimic, U46619, bound to the purified human TP, was determined and compared with that of its conformation bound to the COX-downstream synthases, prostacyclin synthase (PGIS) and thromboxane A(2) synthase (TXAS). Active human TP protein, glycosylated and in full length, was expressed in Sf-9 cells using a baculovirus (BV) expression system and then purified to near homogeneity. The binding of U46619 to the purified receptor in a nonionic detergent-mimicked lipid environment was characterized by high-resolution NMR spectroscopy. The conformational change of U46619, upon binding to the active TP, was evidenced by the significant perturbation of the chemical shifts of its protons at H3 and H4 in a concentration-dependent manner. The detailed conformational changes and 3D structure of U46619 from the free form to the TP-bound form were further solved by 2D (1)H NMR experiments using a transferred NOE (trNOE) technique. The distances between the protons of H11 and H18, H11 and H19, H15 and H18, and H15 and H19 in U46619 were shorter following their binding to the TP in solution, down to within 5A, which were different than that of the U46619 bound to PGIS and U44069 (another PGH(2) mimic) bound to TXAS. These shorter distances led to further separation of the U46619 alpha and omega chains, forming a unique "rectangular" shape. This enabled the molecule to fit into the ligand-binding site pocket of a TP model, in which homology modeling was used for the transmembrane (TM) domain, and NMR structures were used for the extramembrane loops. The proton perturbations and 3D conformations in the TP-bound U46619 were different with that of the PGH(2) mimics bound to PGIS and TXAS. The studies indicated that PGH(2) can adopt multiple conformations in solution to satisfy the specific and unique shapes to fit the different binding pockets in the TP receptor and COX-downstream enzymes. The results also provided sufficient information for speculating the molecular basis of how PGH(2) binds to multiple target proteins even though unrelated in their protein sequences.
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Affiliation(s)
- Ke-He Ruan
- Center for Experimental Therapeutics and Pharmacoinformatics, Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, 4800 Calhoun Rd S and R II Bldg, Houston, TX 77204, USA.
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25
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von Itzstein M. Disease-associated carbohydrate-recognising proteins and structure-based inhibitor design. Curr Opin Struct Biol 2008; 18:558-66. [PMID: 18706999 DOI: 10.1016/j.sbi.2008.07.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2008] [Revised: 07/28/2008] [Accepted: 07/31/2008] [Indexed: 01/20/2023]
Abstract
The role of carbohydrate-related pathways in a wide range of clinically significant diseases has provided great impetus for researchers to characterise key proteins as targets for drug discovery. Carbohydrate-recognising proteins essential in the lifecycles of high health impact pathogens and diseases such as diabetes, cancer, autoimmunity, inflammation and in-born errors of metabolism continue to stimulate much interest in both structure elucidation and structure-based drug design. For example, advances in structure-based inhibitor design against the mycobacterial enzyme UDP-galactopyranose mutase offer new hope in next generation anti-tuberculosis chemotherapeutics. The appearance of H5N1 avian influenza virus has re-stimulated much research on influenza virus haemagglutinin and sialidase. These latest developments on influenza virus sialidase have provided new opportunity for the development of Group 1-specific anti-influenza drugs. The role of siglecs and galectins in a range of disease processes such as inflammation, apoptosis and cancer progression has also inspired significant structure-based inhibitor design research.
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Affiliation(s)
- Mark von Itzstein
- Institute for Glycomics, Gold Coast Campus, Griffith University, Queensland 4222, Australia.
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26
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von Itzstein M. Avian influenza virus, a very sticky situation. Curr Opin Chem Biol 2008; 12:102-8. [PMID: 18295610 DOI: 10.1016/j.cbpa.2008.01.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2007] [Revised: 01/24/2008] [Accepted: 01/28/2008] [Indexed: 12/20/2022]
Abstract
The appearance of the highly pathogenic avian influenza virus H5N1 highlighted the potential impact of influenza virus on humanity. The emergence of this high profile virus stimulated much research towards a better understanding of the key determinants for successful human-to-human transmission and as such has provided new directions for therapeutic intervention strategies. For example, a phylogenetic-based grouping of influenza virus sialidases into either Group 1 or 2 has been proposed. This has provided new opportunity for the development of Group 1-specific anti-influenza drugs. Furthermore, a number of next generation sialidase inhibitors as anti-influenza drugs have also been developed.
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Affiliation(s)
- Mark von Itzstein
- Institute for Glycomics, Gold Coast Campus, Griffith University, Queensland 4222, Australia.
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27
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Bai S, Jain MK, Berg OG. Contiguous binding of decylsulfate on the interface-binding surface of pancreatic phospholipase A2. Biochemistry 2008; 47:2899-907. [PMID: 18260608 DOI: 10.1021/bi702164n] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Pig pancreatic IB phospholipase A 2 (PLA2) forms three distinguishable premicellar E i (#) ( i = 1, 2, and 3) complexes at successively higher decylsulfate concentrations. The Hill coefficient for E 1 (#) is n 1 = 1.6, and n 2 and n 3 for E 2 (#) and E 3 (#) are about 8 each. Saturation-transfer difference nuclear magnetic resonance (NMR) and other complementary results with PLA2 show that decylsulfate molecules in E 2 (#) and E 3 (#) are contiguously and cooperatively clustered on the interface-binding surface or i-face that makes contact with the substrate interface. In these complexes, the saturation-transfer difference NMR signatures of (1)H in decylsulfate are different. The decylsulfate epitope for the successive E i (#) complexes increasingly resembles the micellar complex formed by the binding of PLA2 to preformed micelles. Contiguous cooperative amphiphile binding is predominantly driven by the hydrophobic effect with a modest electrostatic shielding of the sulfate head group in contact with PLA2. The formation of the complexes is also associated with structural change in the enzyme. Calcium affinity of E 2 (#) appears to be modestly lower than that of the free enzyme and E 1 (#). Binding of decylsulfate to the i-face does not require the catalytic calcium required for the substrate binding to the active site and for the chemical step. These results show that E i (#) complexes are useful to structurally characterize the cooperative sequential and contiguous binding of amphiphiles on the i-face. We suggest that the allosteric changes associated with the formation of discrete E i (#) complexes are surrogates for the catalytic and allosteric states of the interface activated PLA2.
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Affiliation(s)
- Shi Bai
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
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28
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Rademacher C, Peters T. Molecular Recognition of Ligands by Native Viruses and Virus-Like Particles as Studied by NMR Experiments. Top Curr Chem (Cham) 2008; 273:183-202. [DOI: 10.1007/128_2007_19] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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