151
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Weilandt T, Löw NL, Schnakenburg G, Daniels J, Nieger M, Schalley CA, Lützen A. Exploring the Palladium and PlatinumBis(pyridine) Complex Motif by NMR Spectroscopy, X-ray Crystallography, (Tandem) Mass Spectrometry, and Isothermal Titration Calorimetry: Do Substituent Effects Follow Chemical Intuition? Chemistry 2012. [DOI: 10.1002/chem.201202771] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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152
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Serpersu EH, Norris AL. Effect of protein dynamics and solvent in ligand recognition by promiscuous aminoglycoside-modifying enzymes. Adv Carbohydr Chem Biochem 2012; 67:221-48. [PMID: 22794185 DOI: 10.1016/b978-0-12-396527-1.00005-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Engin H Serpersu
- Department of Biochemistry, Cellular and Molecular Biology, The University of Tennessee, Knoxville, TN, USA
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153
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Ahlén G, Strindelius L, Johansson T, Nilsson A, Chatzissavidou N, Sjöblom M, Rova U, Holgersson J. Mannosylated mucin-type immunoglobulin fusion proteins enhance antigen-specific antibody and T lymphocyte responses. PLoS One 2012; 7:e46959. [PMID: 23071675 PMCID: PMC3470573 DOI: 10.1371/journal.pone.0046959] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Accepted: 09/07/2012] [Indexed: 01/02/2023] Open
Abstract
Targeting antigens to antigen-presenting cells (APC) improve their immunogenicity and capacity to induce Th1 responses and cytotoxic T lymphocytes (CTL). We have generated a mucin-type immunoglobulin fusion protein (PSGL-1/mIgG(2b)), which upon expression in the yeast Pichia pastoris became multivalently substituted with O-linked oligomannose structures and bound the macrophage mannose receptor (MMR) and dendritic cell-specific intercellular adhesion molecule-3 grabbing non-integrin (DC-SIGN) with high affinity in vitro. Here, its effects on the humoral and cellular anti-ovalbumin (OVA) responses in C57BL/6 mice are presented.OVA antibody class and subclass responses were determined by ELISA, the generation of anti-OVA CTLs was assessed in (51)Cr release assays using in vitro-stimulated immune spleen cells from the different groups of mice as effector cells and OVA peptide-fed RMA-S cells as targets, and evaluation of the type of Th cell response was done by IFN-γ, IL-2, IL-4 and IL-5 ELISpot assays.Immunizations with the OVA - mannosylated PSGL-1/mIgG(2b) conjugate, especially when combined with the AbISCO®-100 adjuvant, lead to faster, stronger and broader (with regard to IgG subclass) OVA IgG responses, a stronger OVA-specific CTL response and stronger Th1 and Th2 responses than if OVA was used alone or together with AbISCO®-100. Also non-covalent mixing of mannosylated PSGL-1/mIgG(2b), OVA and AbISCO®-100 lead to relatively stronger humoral and cellular responses. The O-glycan oligomannoses were necessary because PSGL-1/mIgG(2b) with mono- and disialyl core 1 structures did not have this effect.Mannosylated mucin-type fusion proteins can be used as versatile APC-targeting molecules for vaccines and as such enhance both humoral and cellular immune responses.
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154
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Hayashi T, Hamachi I. Traceless affinity labeling of endogenous proteins for functional analysis in living cells. Acc Chem Res 2012; 45:1460-9. [PMID: 22680975 DOI: 10.1021/ar200334r] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Protein labeling and imaging techniques have provided tremendous opportunities to study the structure, function, dynamics, and localization of individual proteins in the complex environment of living cells. Molecular biology-based approaches, such as GFP-fusion tags and monoclonal antibodies, have served as important tools for the visualization of individual proteins in cells. Although these techniques continue to be valuable for live cell imaging, they have a number of limitations that have only been addressed by recent progress in chemistry-based approaches. These chemical approaches benefit greatly from the smaller probe sizes that should result in fewer perturbations to proteins and to biological systems as a whole. Despite the research in this area, so far none of these labeling techniques permit labeling and imaging of selected endogenous proteins in living cells. Researchers have widely used affinity labeling, in which the protein of interest is labeled by a reactive group attached to a ligand, to identify and characterize proteins. Since the first report of affinity labeling in the early 1960s, efforts to fine-tune the chemical structures of both the reactive group and ligand have led to protein labeling with excellent target selectivity in the whole proteome of living cells. Although the chemical probes used for affinity labeling generally inactivate target proteins, this strategy holds promise as a valuable tool for the labeling and imaging of endogenous proteins in living cells and by extension in living animals. In this Account, we summarize traceless affinity labeling, a technique explored mainly in our laboratory. In our overview of the different labeling techniques, we emphasize the challenge of designing chemical probes that allow for dissociation of the affinity module (often a ligand) after the labeling reaction so that the labeled protein retains its native function. This feature distinguishes the traceless labeling approach from the traditional affinity labeling method and allows for real-time monitoring of protein activity. With the high target specificity and biocompatibility of this technique, we have achieved individual labeling and imaging of endogenously expressed proteins in samples of high biological complexity. We also highlight applications in which our current approach enabled the monitoring of important biological events, such as ligand binding, in living cells. These novel chemical labeling techniques are expected to provide a molecular toolbox for studying a wide variety of proteins and beyond in living cells.
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Affiliation(s)
- Takahiro Hayashi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Itaru Hamachi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan
- Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, 5 Sanbancho, Chiyoda-ku, Tokyo 102-0075, Japan
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155
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Freichels H, Alaimo D, Auzély-Velty R, Jérôme C. α-Acetal, ω-Alkyne Poly(ethylene oxide) as a Versatile Building Block for the Synthesis of Glycoconjugated Graft-Copolymers Suited for Targeted Drug Delivery. Bioconjug Chem 2012; 23:1740-52. [DOI: 10.1021/bc200650n] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hélène Freichels
- Center for Education and Research
on Macromolcules, University of Liège, B6a Sart-Tilman, 4000 Liège, Belgium
| | - David Alaimo
- Center for Education and Research
on Macromolcules, University of Liège, B6a Sart-Tilman, 4000 Liège, Belgium
| | - Rachel Auzély-Velty
- Centre de Recherches sur les
Macromolécules Végétales (CERMAV-CNRS), BP53, 38041 Grenoble cedex 9, France (affiliated with Université
Joseph Fourier, and member of the Institut de Chimie Moléculaire
de Grenoble)
| | - Christine Jérôme
- Center for Education and Research
on Macromolcules, University of Liège, B6a Sart-Tilman, 4000 Liège, Belgium
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156
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Broeker NK, Gohlke U, Müller JJ, Uetrecht C, Heinemann U, Seckler R, Barbirz S. Single amino acid exchange in bacteriophage HK620 tailspike protein results in thousand-fold increase of its oligosaccharide affinity. Glycobiology 2012; 23:59-68. [PMID: 22923442 DOI: 10.1093/glycob/cws126] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Bacteriophage HK620 recognizes and cleaves the O-antigen polysaccharide of Escherichia coli serogroup O18A1 with its tailspike protein (TSP). HK620TSP binds hexasaccharide fragments with low affinity, but single amino acid exchanges generated a set of high-affinity mutants with submicromolar dissociation constants. Isothermal titration calorimetry showed that only small amounts of heat were released upon complex formation via a large number of direct and solvent-mediated hydrogen bonds between carbohydrate and protein. At room temperature, association was both enthalpy- and entropy-driven emphasizing major solvent rearrangements upon complex formation. Crystal structure analysis showed identical protein and sugar conformers in the TSP complexes regardless of their hexasaccharide affinity. Only in one case, a TSP mutant bound a different hexasaccharide conformer. The extended sugar binding site could be dissected in two regions: first, a hydrophobic pocket at the reducing end with minor affinity contributions. Access to this site could be blocked by a single aspartate to asparagine exchange without major loss in hexasaccharide affinity. Second, a region where the specific exchange of glutamate for glutamine created a site for an additional water molecule. Side-chain rearrangements upon sugar binding led to desolvation and additional hydrogen bonding which define this region of the binding site as the high-affinity scaffold.
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157
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Lee DJ, Yang SH, Williams GM, Brimble MA. Synthesis of Multivalent Neoglyconjugates of MUC1 by the Conjugation of Carbohydrate-Centered, Triazole-Linked Glycoclusters to MUC1 Peptides Using Click Chemistry. J Org Chem 2012; 77:7564-71. [DOI: 10.1021/jo3013435] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Dong Jun Lee
- School of Chemical
Sciences, The University of Auckland, 23
Symonds Street, Auckland, New Zealand
| | - Sung-Hyun Yang
- School of Chemical
Sciences, The University of Auckland, 23
Symonds Street, Auckland, New Zealand
| | - Geoffrey M. Williams
- School of Chemical
Sciences, The University of Auckland, 23
Symonds Street, Auckland, New Zealand
| | - Margaret A. Brimble
- School of Chemical
Sciences, The University of Auckland, 23
Symonds Street, Auckland, New Zealand
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158
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Marchetti R, Malinovska L, Lameignère E, Adamova L, de Castro C, Cioci G, Stanetty C, Kosma P, Molinaro A, Wimmerova M, Imberty A, Silipo A. Burkholderia cenocepacia lectin A binding to heptoses from the bacterial lipopolysaccharide. Glycobiology 2012; 22:1387-98. [PMID: 22763039 DOI: 10.1093/glycob/cws105] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Bacteria from the Burkholderia cepacia complex (Bcc) cause highly contagious pneumonia among cystic fibrosis (CF) patients. Among them, Burkholderia cenocepacia is one of the most dangerous in the Bcc and is the most frequent cause of morbidity and mortality in CF patients. Indeed, it is responsible of "cepacia syndrome", a deadly exacerbation of infection, that is the main cause of poor outcomes in lung transplantation. Burkholderia cenocepacia produces several soluble lectins with specificity for fucosylated and mannosylated glycoconjugates. These lectins are present on the bacterial cell surface and it has been proposed that they bind to lipopolysaccharide epitopes. In this work, we report on the interaction of one B. cenocepacia lectin, BC2L-A, with heptose and other manno configured sugar residues. Saturation transfer difference NMR spectroscopy studies of BC2L-A with different mono- and disaccharides demonstrated the requirement of manno configuration with the hydroxyl or glycol group at C6 for the binding process. The crystal structure of BC2L-A complexed with the methyl-heptoside confirmed the location of the carbohydrate ring in the binding site and elucidated the orientation of the glycol tail, in agreement with NMR data. Titration calorimetry performed on monosaccharides, heptose disaccharides and bacterial heptose-containing oligosaccharides and polysaccharides confirmed that bacterial cell wall contains carbohydrate epitopes that can bind to BC2L-A. Additionally, the specific binding of fluorescent BC2L-A lectin on B. cenocepacia bacterial surface was demonstrated by microscopy.
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Affiliation(s)
- Roberta Marchetti
- Dipartimento di Scienze Chimiche, Università di Napoli "Federico II", Italy
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159
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Binder FPC, Lemme K, Preston RC, Ernst B. Sialyl-Lewisx - ein “präorganisiertes Wasseroligomer”? Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201202555] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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160
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Binder FPC, Lemme K, Preston RC, Ernst B. Sialyl Lewis(x): a "pre-organized water oligomer"? Angew Chem Int Ed Engl 2012; 51:7327-31. [PMID: 22782926 DOI: 10.1002/anie.201202555] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Indexed: 01/18/2023]
Abstract
Organized and released: Sialyl Lewis(x) (sLe(x)) represents a "pre-organized water oligomer", that is, a surrogate for clustered water molecules attached to a scaffold. The impetus for sLe(x) binding to E-selectin is shown to be the high degree of pre-organization allowing an array of directed hydrogen bonds, and the entropic benefit of the release of water molecules from the large binding interface to bulk water (see picture).
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Affiliation(s)
- Florian P C Binder
- Institute of Molecular Pharmacy, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
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161
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Cecioni S, Matthews SE, Blanchard H, Praly JP, Imberty A, Vidal S. Synthesis of lactosylated glycoclusters and inhibition studies with plant and human lectins. Carbohydr Res 2012; 356:132-41. [DOI: 10.1016/j.carres.2012.02.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Revised: 02/07/2012] [Accepted: 02/09/2012] [Indexed: 12/20/2022]
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162
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Benevides RG, Ganne G, Simões RDC, Schubert V, Niemietz M, Unverzagt C, Chazalet V, Breton C, Varrot A, Cavada BS, Imberty A. A lectin from Platypodium elegans with unusual specificity and affinity for asymmetric complex N-glycans. J Biol Chem 2012; 287:26352-64. [PMID: 22692206 DOI: 10.1074/jbc.m112.375816] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Lectin activity with specificity for mannose and glucose has been detected in the seed of Platypodium elegans, a legume plant from the Dalbergieae tribe. The gene of Platypodium elegans lectin A has been cloned, and the resulting 261-amino acid protein belongs to the legume lectin family with similarity with Pterocarpus angolensis agglutinin from the same tribe. The recombinant lectin has been expressed in Escherichia coli and refolded from inclusion bodies. Analysis of specificity by glycan array evidenced a very unusual preference for complex type N-glycans with asymmetrical branches. A short branch consisting of one mannose residue is preferred on the 6-arm of the N-glycan, whereas extensions by GlcNAc, Gal, and NeuAc are favorable on the 3-arm. Affinities have been obtained by microcalorimetry using symmetrical and asymmetrical Asn-linked heptasaccharides prepared by the semi-synthetic method. Strong affinity with K(d) of 4.5 μm was obtained for both ligands. Crystal structures of Platypodium elegans lectin A complexed with branched trimannose and symmetrical complex-type Asn-linked heptasaccharide have been solved at 2.1 and 1.65 Å resolution, respectively. The lectin adopts the canonical dimeric organization of legume lectins. The trimannose bridges the binding sites of two neighboring dimers, resulting in the formation of infinite chains in the crystal. The Asn-linked heptasaccharide binds with the 6-arm in the primary binding site with extensive additional contacts on both arms. The GlcNAc on the 6-arm is bound in a constrained conformation that may rationalize the higher affinity observed on the glycan array for N-glycans with only a mannose on the 6-arm.
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Affiliation(s)
- Raquel Guimarães Benevides
- Centre de Recherche sur les Macromolécules Végétales-CNRS (affiliated with Université Joseph Fourier and Institut de Chimie Moléculaire de Grenoble), 38041 Grenoble, France
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163
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Pang L, Kleeb S, Lemme K, Rabbani S, Scharenberg M, Zalewski A, Schädler F, Schwardt O, Ernst B. FimH antagonists: structure-activity and structure-property relationships for biphenyl α-D-mannopyranosides. ChemMedChem 2012; 7:1404-22. [PMID: 22644941 DOI: 10.1002/cmdc.201200125] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Revised: 04/27/2012] [Indexed: 11/09/2022]
Abstract
Urinary tract infections (UTIs) are caused primarily by uropathogenic Escherichia coli (UPEC), which encode filamentous surface-adhesive organelles called type 1 pili. FimH is located at the tips of these pili. The initial attachment of UPEC to host cells is mediated by the interaction of the carbohydrate recognition domain (CRD) of FimH with oligomannosides on urothelial cells. Blocking these lectins with carbohydrates or analogues thereof prevents bacterial adhesion to host cells and therefore offers a potential therapeutic approach for prevention and/or treatment of UTIs. Although numerous FimH antagonists have been developed so far, few of them meet the requirement for clinical application due to poor pharmacokinetics. Additionally, the binding mode of an antagonist to the CRD of FimH can switch from an in-docking mode to an out-docking mode, depending on the structure of the antagonist. In this communication, biphenyl α-D-mannosides were modified to improve their binding affinity, to explore their binding mode, and to optimize their pharmacokinetic properties. The inhibitory potential of the FimH antagonists was measured in a cell-free competitive binding assay, a cell-based flow cytometry assay, and by isothermal titration calorimetry. Furthermore, pharmacokinetic properties such as log D, solubility, and membrane permeation were analyzed. As a result, a structure-activity and structure-property relationships were established for a series of biphenyl α-D-mannosides.
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Affiliation(s)
- Lijuan Pang
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
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164
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Rao DH, Gowda LR. The D-galactose specific lectin of field bean (Dolichos lablab) seed binds sugars with extreme negative cooperativity and half-of-the-sites binding. Arch Biochem Biophys 2012; 524:85-92. [PMID: 22613075 DOI: 10.1016/j.abb.2012.05.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Revised: 04/25/2012] [Accepted: 05/01/2012] [Indexed: 11/17/2022]
Abstract
The field bean (Dolichos lablab) lectin designated as PPO-haemagglutinin (DLL-II) is bifunctional, exhibiting both polyphenol oxidase and haemagglutinating activity. The lectin is unusual in that it binds galactose (Gal), lactose (Lac) and N-acetylgalactosamine (GalNAc) only in the presence of (NH₄)₂SO₄ and exhibits negative cooperativity and half-of-the-sites binding. Circular dichroism, isothermal titration calorimetry and fluorescence quenching were used to assess the sugar binding in the presence of (NH₄)₂O₄. Comparison of the near-UV CD spectra with and without bound sugar revealed ligand induced conformational changes. The intrinsic fluorescence quenching data indicate that DLL-II exhibits weak binding to Gal in the presence of (NH₄)₂SO₄ with a stoichiometry of one bound ligand per dimer. ITC data fitted using a two sets of sites binding model presented a similar picture. The K(a)'s for Gal, Lac and GalNAc in the presence of (NH₄)₂SO₄ were 0.16±0.002, 0.21±0.004 and 8.45±0.78 (×10⁻³) M⁻¹ respectively. The Hill plot for the binding of these sugars to DLL-II was curvilinear with a tangent slope <1.0 indicating negative cooperativity. DLL-II thus exhibits half-of-the-site binding, an extreme form of negative cooperativity in which the second ligand does not bind at all. This is the first report of a legume lectin, exhibiting half-of-the-sites binding.
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Affiliation(s)
- Devavratha H Rao
- Department of Protein Chemistry and Technology, CSIR-Central Food Technological Research Institute, Mysore 570020, India
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165
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Takahashi D, Toshima K. Chemical methods for degradation of target oligosaccharides using designed light-activatable organic molecules. Chem Commun (Camb) 2012; 48:4397-407. [PMID: 22378294 DOI: 10.1039/c2cc17384k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbohydrates play crucial roles in a wide range of biological processes, including serious diseases. The development of novel and innovative methods for selective control of specific oligosaccharide functions has attracted much attention in the fields of chemistry, biology, and medicine. In this feature article, the development of novel chemical tools, which can degrade target oligosaccharides by irradiation with a specific wavelength of light under mild conditions without any additives, is introduced. This novel class of photochemical agents promise bright prospects for finding not only molecular-targeted bioprobes for understanding of the structure-activity relationships of oligosaccharides but also novel therapeutic drugs targeting oligosaccharides.
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Affiliation(s)
- Daisuke Takahashi
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Yokohama 223-8522, Japan
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166
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Cecioni S, Praly JP, Matthews SE, Wimmerová M, Imberty A, Vidal S. Rational Design and Synthesis of Optimized Glycoclusters for Multivalent Lectin-Carbohydrate Interactions: Influence of the Linker Arm. Chemistry 2012; 18:6250-63. [DOI: 10.1002/chem.201200010] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2012] [Indexed: 12/14/2022]
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167
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Cloninger MJ, Bilgiçer B, Li L, Mangold SL, Phillips ST, Wolfenden ML. Multivalency. Supramol Chem 2012. [DOI: 10.1002/9780470661345.smc008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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168
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Cendret V, François-Heude M, Méndez-Ardoy A, Moreau V, Fernández JMG, Djedaïni-Pilard F. Design and synthesis of a "click" high-mannose oligosaccharide mimic emulating Man8 binding affinity towards Con A. Chem Commun (Camb) 2012; 48:3733-5. [PMID: 22399071 DOI: 10.1039/c2cc30773a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A dendritic "click" mannooligomer mimicking the high-mannose oligosaccharide Man(8) has been designed by replacing some of the inner mannopyranosyl subunits with triazole moieties; evaluation of its binding affinity towards the mannose-specific lectin concanavalin A revealed striking similarities between the "click" mimic and the natural Man(8).
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Affiliation(s)
- Virginie Cendret
- Laboratoire des Glucides FRE-CNRS 3517, Institut de Chimie de Picardie, Université de Picardie Jules Verne, 33 Rue Saint-Leu, 80039 Amiens Cedex 1, France
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169
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Das S, Mandal S, Mukhopadhyay B, Zade SS. Synthesis of carbohydrate-functionalized thiophene-capped cyclopenta[c]thiophene for concanavalin A recognition. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.01.034] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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170
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Reynolds M, Marradi M, Imberty A, Penadés S, Pérez S. Multivalent Gold Glycoclusters: High Affinity Molecular Recognition by Bacterial Lectin PA-IL. Chemistry 2012; 18:4264-73. [DOI: 10.1002/chem.201102034] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Indexed: 11/05/2022]
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171
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Zeng Z, Patel J, Lee SH, McCallum M, Tyagi A, Yan M, Shea KJ. Synthetic polymer nanoparticle-polysaccharide interactions: a systematic study. J Am Chem Soc 2012; 134:2681-90. [PMID: 22229911 PMCID: PMC3275679 DOI: 10.1021/ja209959t] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The interaction between synthetic polymer nanoparticles (NPs) and biomacromolecules (e.g., proteins, lipids, and polysaccharides) can profoundly influence the NPs fate and function. Polysaccharides (e.g., heparin/heparin sulfate) are a key component of cell surfaces and the extracelluar matrix and play critical roles in many biological processes. We report a systematic investigation of the interaction between synthetic polymer nanoparticles and polysaccharides by ITC, SPR, and an anticoagulant assay to provide guidelines to engineer nanoparticles for biomedical applications. The interaction between acrylamide nanoparticles (~30 nm) and heparin is mainly enthalpy driven with submicromolar affinity. Hydrogen bonding, ionic interactions, and dehydration of polar groups are identified to be key contributions to the affinity. It has been found that high charge density and cross-linking of the NP can contribute to high affinity. The affinity and binding capacity of heparin can be significantly diminished by an increase in salt concentration while only slightly decreased with an increase of temperature. A striking difference in binding thermodynamics has been observed when the main component of a polymer nanoparticle is changed from acrylamide (enthalpy driven) to N-isopropylacryalmide (entropy driven). This change in thermodynamics leads to different responses of these two types of polymer NPs to salt concentration and temperature. Select synthetic polymer nanoparticles have also been shown to inhibit protein-heparin interactions and thus offer the potential for therapeutic applications.
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Affiliation(s)
- Zhiyang Zeng
- Department of Chemistry, University of California, Irvine, Irvine, CA, 92697
| | - Jiten Patel
- Department of Chemistry, University of California, Irvine, Irvine, CA, 92697
| | - Shih-Hui Lee
- Department of Chemistry, University of California, Irvine, Irvine, CA, 92697
| | - Monica McCallum
- Department of Chemistry, University of California, Irvine, Irvine, CA, 92697
| | - Anuradha Tyagi
- Department of Chemistry, Portland State University, Portland, Oregon, 97207
| | - Mingdi Yan
- Department of Chemistry, Portland State University, Portland, Oregon, 97207
| | - Kenneth J. Shea
- Department of Chemistry, University of California, Irvine, Irvine, CA, 92697
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172
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Nishibu M, Takahashi D, Toshima K. Carbohydrate recognition and photodegradation by an anthracene–Kemp's acid hybrid. Org Biomol Chem 2012; 10:8393-5. [DOI: 10.1039/c2ob26417j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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173
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Bogdan N, Roy R, Morin M. Glycodendrimer coated gold nanoparticles for proteins detection based on surface energy transfer process. RSC Adv 2012. [DOI: 10.1039/c1ra00904d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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174
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Lee MR, Park S, Shin I. Carbohydrate microarrays for enzymatic reactions and quantification of binding affinities for glycan-protein interactions. Methods Mol Biol 2012; 808:103-16. [PMID: 22057520 DOI: 10.1007/978-1-61779-373-8_7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Glycans are involved in a variety of physiological and pathological processes through interactions with proteins. Thus, the molecular basis of glycan-protein interactions provides valuable information on understanding biological phenomena and exploiting more effective carbohydrate-based therapeutic agents and diagnostic tools. Carbohydrate microarray technology has become a powerful tool for evaluating glycan-mediated biological events in a high-throughput manner. This technology is mostly applied for rapid analysis of glycans-protein interactions in the field of functional glycomics. In order to expand application areas of glycan microarrays, we have used carbohydrate microarrays for measurement of binding affinities between glycans and proteins and profiling of glycosyltransferase activities. The glycan microarrays used for these studies are constructed by immobilizing maleimide or hydrazide-conjugated glycans on the thiol or hydrazide-derivatized glass slides, respectively. This protocol describes the fabrication of carbohydrate microarrays and their applications to enzymatic reactions and determination of quantitative binding affinities.
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Affiliation(s)
- Myung-Ryul Lee
- Department of Chemistry, Center for Biofunctional Molecules, Yonsei University, Seoul, South Korea
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175
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Abbott DW, Boraston AB. Quantitative approaches to the analysis of carbohydrate-binding module function. Methods Enzymol 2012; 510:211-31. [PMID: 22608728 DOI: 10.1016/b978-0-12-415931-0.00011-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Carbohydrate-binding modules (CBMs) are important components of carbohydrate-active enzymes. Their primary functions are to assist in substrate turnover by targeting appended catalytic modules to substrate and concentrating appended catalytic modules on the surface of substrate. Presented here are four well-established methodologies for investigating and quantifying the CBM-polysaccharide binding relationship. These methods include: (1) the solid state depletion assay, (2) affinity gel electrophoresis, (3) UV difference and fluorescence spectroscopy, and (4) isothermal titration calorimetry. In addition, entropy-driven CBM-crystalline cellulose binding events and differential approaches to calculating stoichiometry with polyvalent polysaccharide ligands are also discussed.
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Affiliation(s)
- D Wade Abbott
- Lethbridge Research Station, Agriculture and Agri-Food Canada, Lethbridge, Alberta, Canada
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176
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Jiao Y, Zhang J, Zhang L, Lin Z, He C, Duan C. Metal–organic polyhedra containing 36 and 24 folds of amide groups for selective luminescent recognition of natural disaccharides. Chem Commun (Camb) 2012; 48:6022-4. [DOI: 10.1039/c2cc30497j] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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177
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Freichels H, Auzély-Velty R, Lecomte P, Jérôme C. Easy functionalization of amphiphilic poly(ethylene oxide)-b-poly(ε-caprolactone) copolymer micelles with unprotected sugar: synthesis and recognition by lectins. Polym Chem 2012. [DOI: 10.1039/c2py00572g] [Citation(s) in RCA: 11] [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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178
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Saraboji K, Håkansson M, Genheden S, Diehl C, Qvist J, Weininger U, Nilsson UJ, Leffler H, Ryde U, Akke M, Logan DT. The carbohydrate-binding site in galectin-3 is preorganized to recognize a sugarlike framework of oxygens: ultra-high-resolution structures and water dynamics. Biochemistry 2011; 51:296-306. [PMID: 22111949 PMCID: PMC3255464 DOI: 10.1021/bi201459p] [Citation(s) in RCA: 122] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
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The recognition of carbohydrates by proteins is a fundamental aspect of communication within and between living cells. Understanding the molecular basis of carbohydrate–protein interactions is a prerequisite for the rational design of synthetic ligands. Here we report the high- to ultra-high-resolution crystal structures of the carbohydrate recognition domain of galectin-3 (Gal3C) in the ligand-free state (1.08 Å at 100 K, 1.25 Å at 298 K) and in complex with lactose (0.86 Å) or glycerol (0.9 Å). These structures reveal striking similarities in the positions of water and carbohydrate oxygen atoms in all three states, indicating that the binding site of Gal3C is preorganized to coordinate oxygen atoms in an arrangement that is nearly optimal for the recognition of β-galactosides. Deuterium nuclear magnetic resonance (NMR) relaxation dispersion experiments and molecular dynamics simulations demonstrate that all water molecules in the lactose-binding site exchange with bulk water on a time scale of nanoseconds or shorter. Nevertheless, molecular dynamics simulations identify transient water binding at sites that agree well with those observed by crystallography, indicating that the energy landscape of the binding site is maintained in solution. All heavy atoms of glycerol are positioned like the corresponding atoms of lactose in the Gal3C complexes. However, binding of glycerol to Gal3C is insignificant in solution at room temperature, as monitored by NMR spectroscopy or isothermal titration calorimetry under conditions where lactose binding is readily detected. These observations make a case for protein cryo-crystallography as a valuable screening method in fragment-based drug discovery and further suggest that identification of water sites might inform inhibitor design.
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Affiliation(s)
- Kadhirvel Saraboji
- Department of Biochemistry and Structural Biology, Center for Molecular Protein Science, Box 124, Lund University, SE-221 00 Lund, Sweden
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179
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Kadam RU, Bergmann M, Hurley M, Garg D, Cacciarini M, Swiderska MA, Nativi C, Sattler M, Smyth AR, Williams P, Cámara M, Stocker A, Darbre T, Reymond JL. A glycopeptide dendrimer inhibitor of the galactose-specific lectin LecA and of Pseudomonas aeruginosa biofilms. Angew Chem Int Ed Engl 2011; 50:10631-5. [PMID: 21919164 PMCID: PMC3262149 DOI: 10.1002/anie.201104342] [Citation(s) in RCA: 131] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Revised: 08/17/2011] [Indexed: 11/26/2022]
Affiliation(s)
- Rameshwar U Kadam
- Department of Chemistry and Biochemistry, University of BerneFreiestrasse 3, 3012 Berne (Switzerland)
| | - Myriam Bergmann
- Department of Chemistry and Biochemistry, University of BerneFreiestrasse 3, 3012 Berne (Switzerland)
| | - Matthew Hurley
- School of Molecular Medical Sciences, University of NottinghamNottingham NG7 2UH (UK)
- School of Clinical Sciences, University of NottinghamNottingham NG7 2UH (UK)
| | - Divita Garg
- Institute of Structural Biology, Helmholtz Zentrum München and Center for Integrated Protein Science Munich, Departement Chemie, Technische Universität MünchenLichtenbergstrasse 4, 85747 Garching (Germany)
| | - Martina Cacciarini
- Dipartimento di Chimica, Polo Scientifico e Tecnologico, Universita' degli Studi di FirenzeVia della Lastruccia 3, 13, 50019 Sesto Fiorentino—Firenze (Italy)
| | - Magdalena A Swiderska
- Department of Chemistry and Biochemistry, University of BerneFreiestrasse 3, 3012 Berne (Switzerland)
| | - Cristina Nativi
- Dipartimento di Chimica, Polo Scientifico e Tecnologico, Universita' degli Studi di FirenzeVia della Lastruccia 3, 13, 50019 Sesto Fiorentino—Firenze (Italy)
| | - Michael Sattler
- Institute of Structural Biology, Helmholtz Zentrum München and Center for Integrated Protein Science Munich, Departement Chemie, Technische Universität MünchenLichtenbergstrasse 4, 85747 Garching (Germany)
| | - Alan R Smyth
- School of Clinical Sciences, University of NottinghamNottingham NG7 2UH (UK)
| | - Paul Williams
- School of Molecular Medical Sciences, University of NottinghamNottingham NG7 2UH (UK)
| | - Miguel Cámara
- School of Molecular Medical Sciences, University of NottinghamNottingham NG7 2UH (UK)
| | - Achim Stocker
- Department of Chemistry and Biochemistry, University of BerneFreiestrasse 3, 3012 Berne (Switzerland)
| | - Tamis Darbre
- Department of Chemistry and Biochemistry, University of BerneFreiestrasse 3, 3012 Berne (Switzerland)
| | - Jean-Louis Reymond
- Department of Chemistry and Biochemistry, University of BerneFreiestrasse 3, 3012 Berne (Switzerland)
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180
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Imai Y, Hirono S, Matsuba H, Suzuki T, Kobayashi Y, Kawagishi H, Takahashi D, Toshima K. Degradation of Target Oligosaccharides by Anthraquinone-Lectin Hybrids with Light Switching. Chem Asian J 2011; 7:97-104. [DOI: 10.1002/asia.201100586] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Indexed: 11/08/2022]
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181
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Mesch S, Lemme K, Wittwer M, Koliwer-Brandl H, Schwardt O, Kelm S, Ernst B. From a Library of MAG Antagonists to Nanomolar CD22 Ligands. ChemMedChem 2011; 7:134-43. [DOI: 10.1002/cmdc.201100407] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Indexed: 12/14/2022]
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182
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Profiling of influenza viruses by high-throughput carbohydrate membrane array. Future Med Chem 2011; 3:283-96. [PMID: 21446843 DOI: 10.4155/fmc.10.290] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Carbohydrate-protein interactions participate in many biological functions. To characterize the binding interactions represents a longstanding challenge. METHOD We developed a glycan membrane array to study the interactions of carbohydrates with lectins, proteins and viruses, including 17 lectins, four antibodies (that are specific to different Lewis antigens), one recombinant H5N1 hemagglutinin, and five influenza B clinical isolates. RESULTS The results were found to be comparable to previous reports, indicating the efficacy and reliability of our developed method. CONCLUSION This carbohydrate membrane array represents a convenient, reliable and low-cost method to examine the carbohydrate-binding features of various proteins, high-throughput drug screening and the glycan-binding surveillance of influenza viruses.
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183
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Kadam RU, Bergmann M, Hurley M, Garg D, Cacciarini M, Swiderska MA, Nativi C, Sattler M, Smyth AR, Williams P, Cámara M, Stocker A, Darbre T, Reymond JL. A Glycopeptide Dendrimer Inhibitor of the Galactose-Specific Lectin LecA and of Pseudomonas aeruginosa Biofilms. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201104342] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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184
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Sugar-labeled and PEGylated (bio)degradable polymers intended for targeted drug delivery systems. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2011.06.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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185
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Angulo I, Acebrón I, de las Rivas B, Muñoz R, Rodríguez-Crespo I, Menéndez M, García P, Tateno H, Goldstein IJ, Pérez-Agote B, Mancheño JM. High-resolution structural insights on the sugar-recognition and fusion tag properties of a versatile β-trefoil lectin domain from the mushroom Laetiporus sulphureus. Glycobiology 2011; 21:1349-61. [PMID: 21632870 DOI: 10.1093/glycob/cwr074] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
In this work, we analyzed at high resolution the sugar-binding mode of the recombinant N-terminal ricin-B domain of the hemolytic protein LSLa (LSL(150)) from the mushroom Laetiporus sulphureus and also provide functional in vitro evidence suggesting that, together with its putative receptor-binding role, this module may also increase the solubility of its membrane pore-forming partner. We first demonstrate that recombinant LSL(150) behaves as an autonomous folding unit and an active lectin. We have determined its crystal structure at 1.47 Å resolution and also that of the [LSL(150):(lactose)β, γ)] binary complex at 1.67 Å resolution. This complex reveals two lactose molecules bound to the β and γ sites of LSL(150), respectively. Isothermal titration calorimetry indicates that LSL(150) binds two lactoses in solution with highly different affinities. Also, we test the working hypothesis that LSL(150) exhibits in vivo properties typical of solubility tags. With this aim, we have fused an engineered version of LSL(150) (LSL(t)) to the N-terminal end of various recombinant proteins. All the designed LSL(150)-tagged fusion proteins were successfully produced at high yield, and furthermore, the target proteins were purified by a straightforward affinity procedure on agarose-based matrices due to the excellent properties of LSL(150) as an affinity tag. An optimized protocol for target protein purification was devised, which involved removal of the LSL(150) tag through in-column cleavage of the fusion proteins with His(6)-tagged TEV endoprotease. These results permitted to set up a novel, lectin-based system for production and purification of recombinant proteins in E. coli cells with attractive biotechnological applications.
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Affiliation(s)
- Iván Angulo
- Departamento de Cristalografía y Biología Estructural, Instituto de Química Física Rocasolano, CSIC, Serrano 119, E-28006 Madrid, Spain
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186
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Sakakibara K, Hill JP, Ariga K. Thin-film-based nanoarchitectures for soft matter: controlled assemblies into two-dimensional worlds. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2011; 7:1288-308. [PMID: 21506267 DOI: 10.1002/smll.201002350] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2010] [Indexed: 05/19/2023]
Abstract
Controlling the organization of molecular building blocks at the nanometer level is of utmost importance, not only from the viewpoint of scientific curiosity, but also for the development of next-generation organic devices with electrical, optical, chemical, or biological functions. Self-assembly offers great potential for the manufacture of nanoarchitectures (nanostructures and nanopatterns) over large areas by using low-energy and inexpensive spontaneous processes. However, self-assembled structures in 3D media, such as solutions or solids, are not easily incorporated into current device-oriented nanotechnology. The scope of this review is therefore to introduce the expanding methodology for the construction of thin-film-based nanoarchitectures on solid surfaces and to try to address a general concept with emphasis on the availability of dynamic interfaces for the creation and manipulation of nanoarchitectures. In this review, the strategies for the construction of nanostructures, the control and manipulation of nanopatterns, and the application of nanoarchitectures are described; the construction strategies are categorized into three classes: i) π-conjugated molecular assembly in two dimensions, ii) bio-directed molecular assembly on surfaces, and iii) recent thin-film preparation technologies.
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Affiliation(s)
- Keita Sakakibara
- World Premier International Research Center for Materials, Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, Japan.
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187
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Geng J, Biedermann F, Zayed JM, Tian F, Scherman OA. Supramolecular Glycopolymers in Water: A Reversible Route Toward Multivalent Carbohydrate–Lectin Conjugates Using Cucurbit[8]uril. Macromolecules 2011. [DOI: 10.1021/ma200343q] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jin Geng
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Frank Biedermann
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Jameel M. Zayed
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Feng Tian
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Oren A. Scherman
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
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188
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Otsuka I, Blanchard B, Borsali R, Imberty A, Kakuchi T. Enhancement of plant and bacterial lectin binding affinities by three-dimensional organized cluster glycosides constructed on helical poly(phenylacetylene) backbones. Chembiochem 2011; 11:2399-408. [PMID: 21053235 DOI: 10.1002/cbic.201000447] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A series of poly(phenylacetylene)s bearing diverse saccharide pendants--N-acetyl-D-glucosamine, D-lactose, and N-acetyl-D-neuraminic acid--were synthesized by rhodium-mediated polymerizations of the corresponding acetyl-protected glycosylated phenylacetylenes followed by deprotection. The circular dichroism spectra of these glycosylated poly(phenylacetylene)s each displayed split-type Cotton effects in the long absorption region of the conjugated polymer backbone (260-500 nm), thus indicating predominantly one-handed helical conformations in their backbones. The binding affinities of these glycosylated poly(phenylacetylene)s, and those of previously reported phenylacetylenes bearing D-galactose, towards plant and bacterial lectins were investigated by hemagglutination inhibition assay and isothermal titration calorimetry (ITC). The stoichiometries of binding vary strongly, depending on the lectin binding sites and the accessibilities of the carbohydrate residues in the helices. The measured affinities also vary, with the maximum value observed for the interaction between poly-PA-α-Gal and lectin I from Pseudomonas aeruginosa, with a K(d) value of 4 μM per monosaccharide representing a 200-fold increase relative to the corresponding monomer.
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Affiliation(s)
- Issei Otsuka
- Centre de Recherche sur les Macromolécules Végétales (CERMAV, UPR-CNRS 5301), Université Joseph Fourier, 38041 Grenoble Cedex 9, France
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189
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Synthesis of glycopeptide dendrimers, dimerization and affinity for Concanavalin A. Bioorg Med Chem 2011; 19:2879-87. [DOI: 10.1016/j.bmc.2011.03.047] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Revised: 03/08/2011] [Accepted: 03/18/2011] [Indexed: 12/17/2022]
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190
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Chabre YM, Giguère D, Blanchard B, Rodrigue J, Rocheleau S, Neault M, Rauthu S, Papadopoulos A, Arnold AA, Imberty A, Roy R. Combining Glycomimetic and Multivalent Strategies toward Designing Potent Bacterial Lectin Inhibitors. Chemistry 2011; 17:6545-62. [DOI: 10.1002/chem.201003402] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2010] [Indexed: 12/13/2022]
Affiliation(s)
- Yoann M. Chabre
- Pharmaqam, Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre‐Ville, Montreal, Québec, H3C 3P8 (Canada), Fax: (+1) 514‐987‐4054
| | - Denis Giguère
- Pharmaqam, Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre‐Ville, Montreal, Québec, H3C 3P8 (Canada), Fax: (+1) 514‐987‐4054
| | - Bertrand Blanchard
- CERMAV CNRS (Affiliated to Université Joseph Fourier and belonging to ICMG), BP 53, 38041 Grenoble cedex 9 (France), Fax: (+33) 476‐547‐203
| | - Jacques Rodrigue
- Pharmaqam, Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre‐Ville, Montreal, Québec, H3C 3P8 (Canada), Fax: (+1) 514‐987‐4054
| | - Sylvain Rocheleau
- Pharmaqam, Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre‐Ville, Montreal, Québec, H3C 3P8 (Canada), Fax: (+1) 514‐987‐4054
| | - Mathieu Neault
- Pharmaqam, Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre‐Ville, Montreal, Québec, H3C 3P8 (Canada), Fax: (+1) 514‐987‐4054
| | - Subhash Rauthu
- Pharmaqam, Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre‐Ville, Montreal, Québec, H3C 3P8 (Canada), Fax: (+1) 514‐987‐4054
| | - Alex Papadopoulos
- Pharmaqam, Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre‐Ville, Montreal, Québec, H3C 3P8 (Canada), Fax: (+1) 514‐987‐4054
| | - Alexandre A. Arnold
- Pharmaqam, Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre‐Ville, Montreal, Québec, H3C 3P8 (Canada), Fax: (+1) 514‐987‐4054
| | - Anne Imberty
- CERMAV CNRS (Affiliated to Université Joseph Fourier and belonging to ICMG), BP 53, 38041 Grenoble cedex 9 (France), Fax: (+33) 476‐547‐203
| | - René Roy
- Pharmaqam, Department of Chemistry, Université du Québec à Montréal, P.O. Box 8888, Succ. Centre‐Ville, Montreal, Québec, H3C 3P8 (Canada), Fax: (+1) 514‐987‐4054
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191
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The interaction of La3+ complexes of DOTA/DTPA glycoconjugates with the RCA120 lectin: a saturation transfer difference NMR spectroscopic study. J Biol Inorg Chem 2011; 16:725-34. [DOI: 10.1007/s00775-011-0773-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2010] [Accepted: 03/19/2011] [Indexed: 10/18/2022]
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192
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Cui L, Kitov PI, Completo GC, Paulson JC, Bundle DR. Supramolecular complexing of membane Siglec CD22 mediated by a polyvalent heterobifunctional ligand that templates on IgM. Bioconjug Chem 2011; 22:546-50. [PMID: 21405019 DOI: 10.1021/bc100579d] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We report the synthesis and in vitro evaluation of a multivalent homing device, a polymer which contains preordered pendant groups with dual specificity, a trisaccharide moiety, which is specific for the siglec CD22, and an antibody specific hapten, nitrophenol. The device efficiently attracts antihapten IgM to the surface of human lymphoma B cells as well as to CD22-conjugated magnetic beads by mediating the formation of a ternary complex on the surface of the target.
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Affiliation(s)
- Lina Cui
- Department of Chemistry, Alberta Ingenuity Centre for Carbohydrate Science, University of Alberta , Edmonton, Alberta, Canada
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193
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Narahari A, Singla H, Nareddy PK, Bulusu G, Surolia A, Swamy MJ. Isothermal Titration Calorimetric and Computational Studies on the Binding of Chitooligosaccharides to Pumpkin (Cucurbita maxima) Phloem Exudate Lectin. J Phys Chem B 2011; 115:4110-7. [DOI: 10.1021/jp110468n] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Hitesh Singla
- Centre for Computational Natural Sciences and Bioinformatics, International Institute of Information Technology, Hyderabad 500032, India
| | | | - Gopalakrishnan Bulusu
- Centre for Computational Natural Sciences and Bioinformatics, International Institute of Information Technology, Hyderabad 500032, India
- TCS Innovation Labs, Tata Consultancy Services, Hyderabad 500081, India
| | - Avadhesha Surolia
- National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Musti J. Swamy
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
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194
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Hyun H, Yui N. Ligand accessibility to receptor binding sites enhanced by movable polyrotaxanes. Macromol Biosci 2011; 11:765-71. [PMID: 21384556 DOI: 10.1002/mabi.201000507] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Indexed: 11/07/2022]
Abstract
Functionalized polyrotaxanes are utilized to investigate the relation to multivalent interactions between the mannose moiety and Con A immobilized surfaces. According to the results of SPR spectroscopy, the mannose-conjugated polyrotaxanes show a higher response than any other mannose conjugate on both surfaces of high- and low-density Con A. Moreover, the results of the FRET analysis suggest that the mobility of α-cyclodextrins in the polyrotaxane more efficiently contributes to their binding interactions in a multivalent manner. This well-defined polyrotaxane system provides control over ligand density, ligand mobility, and gives an efficient response to the biological interaction receptor, which has not been easy to achieve in covalently bound polymeric systems.
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Affiliation(s)
- Hoon Hyun
- School of Materials Science, Japan Advanced Institute of Science and Technology, Nomi, Ishikawa, Japan
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195
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Yamanaka M, Haraya N, Yamamichi S. Chemical stimuli-responsive supramolecular hydrogel from amphiphilic tris-urea. Chem Asian J 2011; 6:1022-5. [PMID: 21337525 DOI: 10.1002/asia.201000791] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Revised: 11/30/2010] [Indexed: 11/06/2022]
Affiliation(s)
- Masamichi Yamanaka
- Department of Chemistry, Faculty of Science, Shizuoka University, Suruga-ku, Japan.
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196
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Bossu I, Šulc M, Křenek K, Dufour E, Garcia J, Berthet N, Dumy P, Křen V, Renaudet O. Dendri-RAFTs: a second generation of cyclopeptide-based glycoclusters. Org Biomol Chem 2011; 9:1948-59. [PMID: 21221455 DOI: 10.1039/c0ob00772b] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthetic glycoclusters and their related biological applications have stimulated increasing interest over the last decade. As a prerequisite to discovering active and selective therapeuticals, the development of multivalent glycoconjugates with diverse topologies is faced with inherent synthetic and structural characterisation difficulties. Here we describe a new series of molecularly-defined glycoclusters that were synthesized in a controlled manner using a robust and versatile divergent protocol. Starting from a Regioselectively Addressable Functionalized Template (RAFT) carrier, either a polylysine dendritic framework or a second RAFT, then 16 copies of βGal, αMan, βLac or cancer-related Thomsen-Freidenreich (αTF) antigen were successively conjugated within the same molecule using oxime chemistry. We thus obtained a new generation of dendri-RAFTs glycoclusters with high glycosidic density and variable spatial organizations. These compounds displaying 16 endgroups were unambiguously characterized by NMR spectroscopy and mass spectrometry. Further biological assays between a model lectin from Canavalia ensiformis (ConA) and mannosylated glycoclusters revealed a higher inhibition potency than the tetravalent counterpart, in particular for the hexadecavalent polylysine skeleton. Together with the efficiency of the synthetic and characterisation processes, this preliminary biological study provided clear evidence of promising properties that make the second generation of cyclopeptide-based glycoclusters attractive for biomedical applications.
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Affiliation(s)
- Isabelle Bossu
- Département de Chimie Moléculaire, UMR CNRS 5250 and ICMG FR 2607, Université Joseph Fourier, BP53, 38041 Grenoble Cedex 9, France
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197
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Li X, Gao J, Liu D, Wang Z. Studying the interaction of carbohydrate–protein on the dendrimer-modified solid support by microarray-based plasmon resonance light scattering assay. Analyst 2011; 136:4301-7. [DOI: 10.1039/c1an15230k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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198
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Euzen R, Reymond JL. Glycopeptide dendrimers: tuning carbohydrate–lectin interactions with amino acids. ACTA ACUST UNITED AC 2011; 7:411-21. [DOI: 10.1039/c0mb00177e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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199
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Gilboa-Garber N, Zinger-Yosovich KD, Sudakevitz D, Lerrer B, Imberty A, Wimmerova M, Wu AM, Garber NC. The five bacterial lectins (PA-IL, PA-IIL, RSL, RS-IIL, and CV-IIL): interactions with diverse animal cells and glycoproteins. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2011; 705:155-211. [PMID: 21618109 DOI: 10.1007/978-1-4419-7877-6_9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Nechama Gilboa-Garber
- The Mina & Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel.
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200
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Yang LY, Kawada Y, Bai L, Kubota D, Yuasa H. 2-Oxabutane as a substitute for internal monomer units of oligosaccharides to create lectin ligands. Org Biomol Chem 2011; 9:6579-86. [DOI: 10.1039/c1ob05775h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Li-Ying Yang
- Department of Life Science, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, J2-10, 4259 Nagatsutacho, Midoriku, Yokohama 226-8501, Japan
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