1
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Ramos J, Laux V, Haertlein M, Forsyth VT, Mossou E, Larsen S, Langkilde AE. The impact of folding modes and deuteration on the atomic resolution structure of hen egg-white lysozyme. Acta Crystallogr D Struct Biol 2021; 77:1579-1590. [PMID: 34866613 PMCID: PMC8647175 DOI: 10.1107/s2059798321010950] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 10/20/2021] [Indexed: 11/10/2022] Open
Abstract
The biological function of a protein is intimately related to its structure and dynamics, which in turn are determined by the way in which it has been folded. In vitro refolding is commonly used for the recovery of recombinant proteins that are expressed in the form of inclusion bodies and is of central interest in terms of the folding pathways that occur in vivo. Here, biophysical data are reported for in vitro-refolded hydrogenated hen egg-white lysozyme, in combination with atomic resolution X-ray diffraction analyses, which allowed detailed comparisons with native hydrogenated and refolded perdeuterated lysozyme. Distinct folding modes are observed for the hydrogenated and perdeuterated refolded variants, which are determined by conformational changes to the backbone structure of the Lys97-Gly104 flexible loop. Surprisingly, the structure of the refolded perdeuterated protein is closer to that of native lysozyme than that of the refolded hydrogenated protein. These structural differences suggest that the observed decreases in thermal stability and enzymatic activity in the refolded perdeuterated and hydrogenated proteins are consequences of the macromolecular deuteration effect and of distinct folding dynamics, respectively. These results are discussed in the context of both in vitro and in vivo folding, as well as of lysozyme amyloidogenesis.
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Affiliation(s)
- Joao Ramos
- Life Sciences Group, Institute Laue–Langevin, 71 Avenue des Martyrs, 38000 Grenoble, France
- Partnership for Structural Biology (PSB), 71 Avenue des Martyrs, 38000 Grenoble, France
- Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Valerie Laux
- Life Sciences Group, Institute Laue–Langevin, 71 Avenue des Martyrs, 38000 Grenoble, France
- Partnership for Structural Biology (PSB), 71 Avenue des Martyrs, 38000 Grenoble, France
| | - Michael Haertlein
- Life Sciences Group, Institute Laue–Langevin, 71 Avenue des Martyrs, 38000 Grenoble, France
- Partnership for Structural Biology (PSB), 71 Avenue des Martyrs, 38000 Grenoble, France
| | - V. Trevor Forsyth
- Life Sciences Group, Institute Laue–Langevin, 71 Avenue des Martyrs, 38000 Grenoble, France
- Partnership for Structural Biology (PSB), 71 Avenue des Martyrs, 38000 Grenoble, France
- Faculty of Natural Sciences, Keele University, Newcastle ST5 5BG, United Kingdom
- Faculty of Medicine, Lund University, 221 00 Lund, Sweden
- LINXS Institute for Advanced Neutron and X-ray Science, Scheelvagen 19, 223 70 Lund, Sweden
| | - Estelle Mossou
- Partnership for Structural Biology (PSB), 71 Avenue des Martyrs, 38000 Grenoble, France
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - Sine Larsen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Annette E. Langkilde
- Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
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2
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Ramos J, Laux V, Haertlein M, Boeri Erba E, McAuley KE, Forsyth VT, Mossou E, Larsen S, Langkilde AE. Structural insights into protein folding, stability and activity using in vivo perdeuteration of hen egg-white lysozyme. IUCrJ 2021; 8:372-386. [PMID: 33953924 PMCID: PMC8086161 DOI: 10.1107/s2052252521001299] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/03/2021] [Indexed: 06/12/2023]
Abstract
This structural and biophysical study exploited a method of perdeuterating hen egg-white lysozyme based on the expression of insoluble protein in Escherichia coli followed by in-column chemical refolding. This allowed detailed comparisons with perdeuterated lysozyme produced in the yeast Pichia pastoris, as well as with unlabelled lysozyme. Both perdeuterated variants exhibit reduced thermal stability and enzymatic activity in comparison with hydrogenated lysozyme. The thermal stability of refolded perdeuterated lysozyme is 4.9°C lower than that of the perdeuterated variant expressed and secreted in yeast and 6.8°C lower than that of the hydrogenated Gallus gallus protein. However, both perdeuterated variants exhibit a comparable activity. Atomic resolution X-ray crystallographic analyses show that the differences in thermal stability and enzymatic function are correlated with refolding and deuteration effects. The hydrogen/deuterium isotope effect causes a decrease in the stability and activity of the perdeuterated analogues; this is believed to occur through a combination of changes to hydrophobicity and protein dynamics. The lower level of thermal stability of the refolded perdeuterated lysozyme is caused by the unrestrained Asn103 peptide-plane flip during the unfolded state, leading to a significant increase in disorder of the Lys97-Gly104 region following subsequent refolding. An ancillary outcome of this study has been the development of an efficient and financially viable protocol that allows stable and active perdeuterated lysozyme to be more easily available for scientific applications.
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Affiliation(s)
- Joao Ramos
- Life Sciences Group, Institut Laue–Langevin, 71 Avenue des Martyrs, 38000 Grenoble, France
- Partnership for Structural Biology (PSB), 71 Avenue des Martyrs, 38000 Grenoble, France
- Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Valerie Laux
- Life Sciences Group, Institut Laue–Langevin, 71 Avenue des Martyrs, 38000 Grenoble, France
- Partnership for Structural Biology (PSB), 71 Avenue des Martyrs, 38000 Grenoble, France
| | - Michael Haertlein
- Life Sciences Group, Institut Laue–Langevin, 71 Avenue des Martyrs, 38000 Grenoble, France
- Partnership for Structural Biology (PSB), 71 Avenue des Martyrs, 38000 Grenoble, France
| | - Elisabetta Boeri Erba
- Partnership for Structural Biology (PSB), 71 Avenue des Martyrs, 38000 Grenoble, France
- Institut de Biologie Structurale, Université de Grenoble Alpes, CEA, CNRS, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - Katherine E. McAuley
- Diamond Light Source, Didcot OX11 0DE, United Kingdom
- Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen, Switzerland
| | - V. Trevor Forsyth
- Life Sciences Group, Institut Laue–Langevin, 71 Avenue des Martyrs, 38000 Grenoble, France
- Partnership for Structural Biology (PSB), 71 Avenue des Martyrs, 38000 Grenoble, France
- Faculty of Natural Sciences, Keele University, Newcastle-under-Lyme ST5 5BG, United Kingdom
| | - Estelle Mossou
- Life Sciences Group, Institut Laue–Langevin, 71 Avenue des Martyrs, 38000 Grenoble, France
- Partnership for Structural Biology (PSB), 71 Avenue des Martyrs, 38000 Grenoble, France
- Faculty of Natural Sciences, Keele University, Newcastle-under-Lyme ST5 5BG, United Kingdom
| | - Sine Larsen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Annette E. Langkilde
- Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
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3
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Makarova I, Selezneva E, Canadillas-Delgado L, Mossou E, Vasiliev A, Komornikov V, Devishvili A. Crystal structure, hydrogen bonds and thermal transformations of superprotonic conductor Cs 6(SO 4) 3(H 3PO 4) 4. Acta Crystallogr B Struct Sci Cryst Eng Mater 2021; 77:266-274. [PMID: 33843735 DOI: 10.1107/s2052520621001840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 02/15/2021] [Indexed: 06/12/2023]
Abstract
Crystals of Cs6(SO4)3(H3PO4)4 belong to the family of alkali metal acid salts that show a high protonic conductivity at relatively low temperatures. Such properties make superprotonic crystals an excellent choice for the study of the influence of the hydrogen subsystem on the physicochemical properties and promising materials for energy-efficient technologies. Single crystals of Cs6(SO4)3(H3PO4)4 were studied by neutron diffraction methods, optical polarization microscopy, scanning electron microscopy and energy-dispersive X-ray spectroscopy. Neutron diffraction studies made it possible to determine the positions of all the atoms with high accuracy, including the H atom on a hydrogen bond characterized by a single-minimum potential, to confirm the chemical composition of the Cs6(SO4)3(H3PO4)4 crystals and their cubic symmetry in low- and high-temperature phases, and to draw conclusions about the three-dimensional system of hydrogen bonds, which is fundamentally different in comparison with other superprotonic compounds. Based on the experimental data obtained, crystal transformations with temperature changes are reported, and the stability of the chemical composition is shown.
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Affiliation(s)
- Irina Makarova
- Shubnikov Institute of Crystallography of Federal Scientific Research Centre `Crystallography and Photonics' of Russian Academy of Sciences, Leninsky pr. 59, Moscow 119333, Russian Federation
| | - Elena Selezneva
- Shubnikov Institute of Crystallography of Federal Scientific Research Centre `Crystallography and Photonics' of Russian Academy of Sciences, Leninsky pr. 59, Moscow 119333, Russian Federation
| | | | - Estelle Mossou
- Institut Laue-Langevin, 71 Avenue des Martyrs, Grenoble 38042, France
| | - Aleksander Vasiliev
- Shubnikov Institute of Crystallography of Federal Scientific Research Centre `Crystallography and Photonics' of Russian Academy of Sciences, Leninsky pr. 59, Moscow 119333, Russian Federation
| | - Vladimir Komornikov
- Shubnikov Institute of Crystallography of Federal Scientific Research Centre `Crystallography and Photonics' of Russian Academy of Sciences, Leninsky pr. 59, Moscow 119333, Russian Federation
| | - Anton Devishvili
- Institut Laue-Langevin, 71 Avenue des Martyrs, Grenoble 38042, France
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4
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González A, Wildes AR, Mossou E, Cristiglio V, Moiroux G, Garden JL, Cuesta-López S, Theodorakopoulos N, Peyrard M. Melting transition of oriented Li-DNA fibers submerged in ethanol solutions. Biopolymers 2021; 112:e23422. [PMID: 33600618 DOI: 10.1002/bip.23422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 01/08/2021] [Accepted: 01/21/2021] [Indexed: 11/09/2022]
Abstract
The melting transition of Li-DNA fibers immersed in ethanol-water solutions has been studied using calorimetry and neutron diffraction techniques. The data have been analyzed using the Peyrard-Bishop-Dauxois model to determine the strengths of the intra- and inter-base pair potentials. The data and analysis show that the potentials are weaker than those for DNA in water. They become weaker still and the DNA less stable as the ethanol concentration increases but, conversely, the fibers become more compact and the distances between base pairs become more regular. The results show that the melting transition is relatively insensitive to local confinement and depends more on the interaction between the DNA and its aqueous environment.
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Affiliation(s)
- Adrián González
- Institut Laue-Langevin, Grenoble, France.,ICCRAM, University of Burgos, Burgos, Spain.,Nano and Biophysics division, Department of Physics, Chalmers University of Technology, Göteborg, Sweden
| | | | | | | | - Gaël Moiroux
- Institut Néel, CNRS, Grenoble, France.,Institut Néel, University Grenoble Alpes, Grenoble, France
| | - Jean-Luc Garden
- Institut Néel, CNRS, Grenoble, France.,Institut Néel, University Grenoble Alpes, Grenoble, France
| | - Santiago Cuesta-López
- ICCRAM, University of Burgos, Burgos, Spain.,Advanced Materials and Computational Engineering, ICAMCyL Foundation International Center for Advanced Materials and Raw Materials of Castilla y León, León, Spain
| | - Nikos Theodorakopoulos
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, Athens, Greece.,Fachbereich Physik, Universität Konstanz, Constance, Germany
| | - Michel Peyrard
- Université de Lyon, Ecole Normale Supérieure de Lyon, Laboratoire de Physique, CNRS, UMR 5672, Lyon, France
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5
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Thomas LH, Altaner CM, Forsyth VT, Mossou E, Kennedy CJ, Martel A, Jarvis MC. Nanostructural deformation of high-stiffness spruce wood under tension. Sci Rep 2021; 11:453. [PMID: 33432070 PMCID: PMC7801420 DOI: 10.1038/s41598-020-79676-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 12/08/2020] [Indexed: 12/17/2022] Open
Abstract
Conifer wood is an exceptionally stiff and strong material when its cellulose microfibrils are well aligned. However, it is not well understood how the polymer components cellulose, hemicelluloses and lignin co-operate to resist tensile stress in wood. From X-ray scattering, neutron scattering and spectroscopic data, collected under tension and processed by novel methods, the ordered, disordered and hemicellulose-coated cellulose components comprising each microfibril were shown to stretch together and demonstrated concerted, viscous stress relaxation facilitated by water. Different cellulose microfibrils did not all stretch to the same degree. Attempts were made to distinguish between microfibrils showing large and small elongation but these domains were shown to be similar with respect to orientation, crystalline disorder, hydration and the presence of bound xylan. These observations are consistent with a major stress transfer process between microfibrils being shear at interfaces in direct, hydrogen-bonded contact, as demonstrated by small-angle neutron scattering. If stress were transmitted between microfibrils by bridging hemicelluloses these might have been expected to show divergent stretching and relaxation behaviour, which was not observed. However lignin and hemicellulosic glucomannans may contribute to stress transfer on a larger length scale between microfibril bundles (macrofibrils).
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Affiliation(s)
- Lynne H Thomas
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Clemens M Altaner
- New Zealand School of Forestry, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - V Trevor Forsyth
- Institut Laue-Langevin, 38042, Grenoble Cedex 9, France.,Partnership for Structural Biology (PSB), 38042, Grenoble Cedex 9, France.,Faculty of Natural Sciences, Keele University, Staffordshire, ST5 5BG, UK
| | - Estelle Mossou
- Institut Laue-Langevin, 38042, Grenoble Cedex 9, France.,Partnership for Structural Biology (PSB), 38042, Grenoble Cedex 9, France.,Faculty of Natural Sciences, Keele University, Staffordshire, ST5 5BG, UK
| | - Craig J Kennedy
- School of Energy, Geoscience, Infrastructure and Society, Heriot Watt University, Edinburgh, EH14 4AS, Scotland, UK
| | - Anne Martel
- Institut Laue-Langevin, 38042, Grenoble Cedex 9, France
| | - Michael C Jarvis
- School of Chemistry, Glasgow University, Glasgow, G12 8QQ, Scotland, UK.
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6
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Hützler WM, Mossou E, Vollrath R, Kohagen M, El Ghrissi I, Grininger M, Zaccai G, Smiatek J, Oesterhelt D. Complex transitions between dihydrate and anhydrate forms of ectoine – unexpected behavior of a highly hygroscopic compatible solute in the solid state. CrystEngComm 2020. [DOI: 10.1039/c9ce01599j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Crystallizing the compatible solute ectoine from water yields a metastable dihydrate that readily degrades to a highly hygroscopic anhydrate at ambient conditions; this strange behavior is examined and a rationale is presented.
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Affiliation(s)
- Wilhelm Maximilian Hützler
- Institute of Organic Chemistry and Chemical Biology
- Buchmann Institute for Molecular Life Sciences
- Goethe-University Frankfurt
- 60438 Frankfurt am Main
- Germany
| | | | - Ronnald Vollrath
- Department of Membrane Biochemistry
- Max-Planck-Institute of Biochemistry
- 82152 Martinsried
- Germany
| | - Miriam Kohagen
- Institute for Computational Physics
- University of Stuttgart
- 70569 Stuttgart
- Germany
| | | | - Martin Grininger
- Institute of Organic Chemistry and Chemical Biology
- Buchmann Institute for Molecular Life Sciences
- Goethe-University Frankfurt
- 60438 Frankfurt am Main
- Germany
| | - Giuseppe Zaccai
- Institute Laue-Langevin
- 38042 Grenoble Cedex 9
- France
- Univ. Grenoble Alpes
- CNRS
| | - Jens Smiatek
- Institute for Computational Physics
- University of Stuttgart
- 70569 Stuttgart
- Germany
| | - Dieter Oesterhelt
- Department of Membrane Biochemistry
- Max-Planck-Institute of Biochemistry
- 82152 Martinsried
- Germany
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7
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Moulin M, Mossou E, Signor L, Kieffer-Jaquinod S, Kwaambwa H, Nermark F, Gutfreund P, Mitchell E, Haertlein M, Forsyth V, Rennie A. Towards a molecular understanding of the water purification properties of Moringa seed proteins. J Colloid Interface Sci 2019; 554:296-304. [DOI: 10.1016/j.jcis.2019.06.071] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/19/2019] [Accepted: 06/20/2019] [Indexed: 10/26/2022]
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8
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Weger M, Grötsch RK, Knaus MG, Giuman MM, Mayer DC, Altmann PJ, Mossou E, Dittrich B, Pöthig A, Rieger B. Nicht‐unschuldiger Methylen‐Linker in verbrückten Lewis‐Paar‐ Initiatoren. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902833] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Michael Weger
- Katalysezentrum & WACKER-Lehrstuhl für Makromolekulare ChemieTechnische Universität München Lichtenbergstraße 4 85748 Garching Deutschland
| | - Raphael K. Grötsch
- Katalysezentrum & WACKER-Lehrstuhl für Makromolekulare ChemieTechnische Universität München Lichtenbergstraße 4 85748 Garching Deutschland
| | - Maximilian G. Knaus
- Katalysezentrum & WACKER-Lehrstuhl für Makromolekulare ChemieTechnische Universität München Lichtenbergstraße 4 85748 Garching Deutschland
| | - Marco M. Giuman
- Katalysezentrum & WACKER-Lehrstuhl für Makromolekulare ChemieTechnische Universität München Lichtenbergstraße 4 85748 Garching Deutschland
| | - David C. Mayer
- Katalysezentrum & Lehrstuhl für anorganische und metallorganische ChemieTechnische Universität München Lichtenbergstraße 4 85748 Garching Deutschland
| | - Philipp J. Altmann
- Katalysezentrum & Lehrstuhl für anorganische und metallorganische ChemieTechnische Universität München Lichtenbergstraße 4 85748 Garching Deutschland
| | - Estelle Mossou
- Institute Laue-Langevin 71 avenue des Martyrs CS 20156 38042 Grenoble Frankreich
- Faculty of Natural SciencesKeele University Staffordshire ST5 5BG Vereinigtes Königreich
| | - Birger Dittrich
- Anorganische Chemie und Strukturchemie 2Heinrich Heine Universität Universitätsstraße 1 40225 Düsseldorf Deutschland
| | - Alexander Pöthig
- Katalysezentrum & Lehrstuhl für anorganische und metallorganische ChemieTechnische Universität München Lichtenbergstraße 4 85748 Garching Deutschland
| | - Bernhard Rieger
- Katalysezentrum & WACKER-Lehrstuhl für Makromolekulare ChemieTechnische Universität München Lichtenbergstraße 4 85748 Garching Deutschland
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9
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Weger M, Grötsch RK, Knaus MG, Giuman MM, Mayer DC, Altmann PJ, Mossou E, Dittrich B, Pöthig A, Rieger B. Non-Innocent Methylene Linker in Bridged Lewis Pair Initiators. Angew Chem Int Ed Engl 2019; 58:9797-9801. [PMID: 31046187 DOI: 10.1002/anie.201902833] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/19/2019] [Indexed: 01/07/2023]
Abstract
Deprotonation usually occurs as an unwanted side reaction in the Lewis pair polymerization of Michael acceptors, for which the conjugated addition of the Lewis base to the acid-activated monomer is the commonly accepted initiation mechanism. This has also been reported for B-P-based bridged Lewis pairs (BLPs) that form macrocyclic addition products. We now show that the formerly unwanted deprotonation is the likely initiation pathway in the case of Al-P-based BLPs. In a detailed study of a series of Al-P-based BLPs, using a combination of single-crystal diffraction experiments (X-ray and neutron) and mechanistic investigations (experimental and computational), an active role of the methylene bridge was revealed, acting as a base towards the α-acidic monomers. Additionally, the polymerization studies proved a living behavior combined with significantly high activities, narrow molecular mass distributions, and the possibility of copolymerization.
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Affiliation(s)
- Michael Weger
- Catalysis Research Center & WACKER-Chair of Macromolecular Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Raphael K Grötsch
- Catalysis Research Center & WACKER-Chair of Macromolecular Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Maximilian G Knaus
- Catalysis Research Center & WACKER-Chair of Macromolecular Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Marco M Giuman
- Catalysis Research Center & WACKER-Chair of Macromolecular Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - David C Mayer
- Catalysis Research Center & Chair of Inorganic and Metal-Organic Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Philipp J Altmann
- Catalysis Research Center & Chair of Inorganic and Metal-Organic Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Estelle Mossou
- Institute Laue-Langevin, 71 avenue des Martyrs CS 20156, 38042, Grenoble, France.,Faculty of Natural Sciences, Keele University, Staffordshire, ST5 5BG, UK
| | - Birger Dittrich
- Inorganic Chemistry und Structural Chemistry 2, Heinrich Heine Universität, Universitätsstrasse 1, 40225, Düsseldorf, Germany
| | - Alexander Pöthig
- Catalysis Research Center & Chair of Inorganic and Metal-Organic Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Bernhard Rieger
- Catalysis Research Center & WACKER-Chair of Macromolecular Chemistry, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany
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10
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Kokotidou C, Jonnalagadda SVR, Orr AA, Seoane-Blanco M, Apostolidou CP, van Raaij MJ, Kotzabasaki M, Chatzoudis A, Jakubowski JM, Mossou E, Forsyth VT, Mitchell EP, Bowler MW, Llamas-Saiz AL, Tamamis P, Mitraki A. A novel amyloid designable scaffold and potential inhibitor inspired by GAIIG of amyloid beta and the HIV-1 V3 loop. FEBS Lett 2018; 592:1777-1788. [PMID: 29772603 DOI: 10.1002/1873-3468.13096] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 05/02/2018] [Indexed: 12/11/2022]
Abstract
The GAIIG sequence, common to the amyloid beta peptide (residues 29-33) and to the HIV-1 gp120 (residues 24-28 in a typical V3 loop), self-assembles into amyloid fibrils, as suggested by theory and the experiments presented here. The longer YATGAIIGNII sequence from the V3 loop also self-assembles into amyloid fibrils, of which the first three and the last two residues are outside the amyloid GAIIG core. We postulate that this sequence, with suitably selected modifications at the flexible positions, can serve as a designable scaffold for novel amyloid-based materials. Moreover, we report the single crystal X-ray structure of the beta-breaker peptide GAIPIG at 1.05 Å resolution. The structural information provided in this study could serve as the basis for structure-based design of potential inhibitors of amyloid formation.
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Affiliation(s)
- Chrysoula Kokotidou
- Department of Materials Science and Technology, University of Crete, Heraklion, Greece.,Institute of Electronic Structure and Laser (IESL), FORTH, Heraklion, Greece
| | | | - Asuka A Orr
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX, USA
| | - Mateo Seoane-Blanco
- Departamento de Estructura de Macromoleculas, Centro Nacional de Biotecnologia (CSIC), Madrid, Spain
| | - Chrysanthi Pinelopi Apostolidou
- Department of Materials Science and Technology, University of Crete, Heraklion, Greece.,Institute of Electronic Structure and Laser (IESL), FORTH, Heraklion, Greece
| | - Mark J van Raaij
- Departamento de Estructura de Macromoleculas, Centro Nacional de Biotecnologia (CSIC), Madrid, Spain
| | - Marianna Kotzabasaki
- Department of Materials Science and Technology, University of Crete, Heraklion, Greece
| | - Apostolos Chatzoudis
- Department of Materials Science and Technology, University of Crete, Heraklion, Greece
| | - Joseph M Jakubowski
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX, USA
| | - Estelle Mossou
- Institut Laue Langevin, Grenoble Cedex 9, France.,Faculty of Natural Sciences/Institute for Science and Technology in Medicine, Keele University, Staffordshire, UK
| | - V Trevor Forsyth
- Institut Laue Langevin, Grenoble Cedex 9, France.,Faculty of Natural Sciences/Institute for Science and Technology in Medicine, Keele University, Staffordshire, UK
| | - Edward P Mitchell
- Faculty of Natural Sciences/Institute for Science and Technology in Medicine, Keele University, Staffordshire, UK.,European Synchrotron Radiation Facility, Grenoble Cedex 9, France
| | - Matthew W Bowler
- European Molecular Biology Laboratory, Grenoble, France.,Unit for Virus Host Cell Interactions, University Grenoble Alpes-EMBL-CNRS, Grenoble, France
| | - Antonio L Llamas-Saiz
- X-Ray Unit, RIAIDT, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Phanourios Tamamis
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX, USA
| | - Anna Mitraki
- Department of Materials Science and Technology, University of Crete, Heraklion, Greece.,Institute of Electronic Structure and Laser (IESL), FORTH, Heraklion, Greece
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11
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Mizuta R, Devos JM, Webster J, Ling WL, Narayanan T, Round A, Munnur D, Mossou E, Farahat AA, Boykin DW, Wilson WD, Neidle S, Schweins R, Rannou P, Haertlein M, Forsyth VT, Mitchell EP. Dynamic self-assembly of DNA minor groove-binding ligand DB921 into nanotubes triggered by an alkali halide. Nanoscale 2018; 10:5550-5558. [PMID: 29517086 PMCID: PMC5885265 DOI: 10.1039/c7nr03875e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 01/31/2018] [Indexed: 06/08/2023]
Abstract
We describe a novel self-assembling supramolecular nanotube system formed by a heterocyclic cationic molecule which was originally designed for its potential as an antiparasitic and DNA sequence recognition agent. Our structural characterisation work indicates that the nanotubes form via a hierarchical assembly mechanism that can be triggered and tuned by well-defined concentrations of simple alkali halide salts in water. The nanotubes assembled in NaCl have inner and outer diameters of ca. 22 nm and 26 nm respectively, with lengths that reach into several microns. Our results suggest the tubes consist of DB921 molecules stacked along the direction of the nanotube long axis. The tubes are stabilised by face-to-face π-π stacking and ionic interactions between the charged amidinium groups of the ligand and the negative halide ions. The assembly process of the nanotubes was followed using small-angle X-ray and neutron scattering, transmission electron microscopy and ultraviolet/visible spectroscopy. Our data demonstrate that assembly occurs through the formation of intermediate ribbon-like structures that in turn form helices that tighten and compact to form the final stable filament. This assembly process was tested using different alkali-metal salts, showing a strong preference for chloride or bromide anions and with little dependency on the type of cation. Our data further demonstrates the existence of a critical anion concentration above which the rate of self-assembly is greatly enhanced.
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Affiliation(s)
- R Mizuta
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38000 Grenoble, France and European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France.
| | - J M Devos
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - J Webster
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38000 Grenoble, France and European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France.
| | - W L Ling
- Univ. Grenoble Alpes, CEA, CNRS, IBS, F-38000 Grenoble, France
| | - T Narayanan
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France.
| | - A Round
- European Molecular Biology Laboratory, 71 Avenue des Martyrs, 38000 Grenoble, France and Faculty of Natural Sciences, Keele University, Staffordshire, ST5 5BG, UK
| | - D Munnur
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38000 Grenoble, France and European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France. and School of Pharmacy, University College London, Brunswick Square, London, WC1N 1AX, UK
| | - E Mossou
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38000 Grenoble, France and Faculty of Natural Sciences, Keele University, Staffordshire, ST5 5BG, UK
| | - A A Farahat
- Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA and Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - D W Boykin
- Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA
| | - W D Wilson
- Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA
| | - S Neidle
- School of Pharmacy, University College London, Brunswick Square, London, WC1N 1AX, UK
| | - R Schweins
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - P Rannou
- Univ. Grenoble Alpes, CNRS, CEA, INAC-SyMMES, 38000 Grenoble, France
| | - M Haertlein
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - V T Forsyth
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38000 Grenoble, France and Faculty of Natural Sciences, Keele University, Staffordshire, ST5 5BG, UK
| | - E P Mitchell
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France. and Faculty of Natural Sciences, Keele University, Staffordshire, ST5 5BG, UK
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12
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González A, Wildes A, Marty-Roda M, Cuesta-López S, Mossou E, Studer A, Demé B, Moiroux G, Garden JL, Theodorakopoulos N, Peyrard M. Melting Transition of Oriented DNA Fibers Submerged in Poly(ethylene glycol) Solutions Studied by Neutron Scattering and Calorimetry. J Phys Chem B 2018; 122:2504-2515. [DOI: 10.1021/acs.jpcb.7b11608] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Adrián González
- Institut Laue Langevin, 71, avenue des Martyrs - CS20156 - 38042 Grenoble Cedex 9 - France
- ICCRAM, University of Burgos, Plaza Misael Bañuelos, 09001 Burgos, Spain
| | - Andrew Wildes
- Institut Laue Langevin, 71, avenue des Martyrs - CS20156 - 38042 Grenoble Cedex 9 - France
| | - Marta Marty-Roda
- ICCRAM, University of Burgos, Plaza Misael Bañuelos, 09001 Burgos, Spain
| | | | - Estelle Mossou
- Institut Laue Langevin, 71, avenue des Martyrs - CS20156 - 38042 Grenoble Cedex 9 - France
- Faculty of Natural Sciences, Keele University, Staffordshire ST5 5BG, United Kingdom
| | - Andrew Studer
- ANSTO, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia
| | - Bruno Demé
- Institut Laue Langevin, 71, avenue des Martyrs - CS20156 - 38042 Grenoble Cedex 9 - France
| | - Gaël Moiroux
- Institut Néel, University Grenoble Alpes, F-38042 Grenoble, France
- Institut Néel, CNRS, 25 Avenue des Martyrs, F-38042 Grenoble, France
| | - Jean-Luc Garden
- Institut Néel, University Grenoble Alpes, F-38042 Grenoble, France
- Institut Néel, CNRS, 25 Avenue des Martyrs, F-38042 Grenoble, France
| | - Nikos Theodorakopoulos
- Fachbereich Physik, Universität Konstanz, D-78457 Konstanz, Germany
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, Vasileos Constantinou 48, 116 35 Athens, Greece
| | - Michel Peyrard
- Université de Lyon, Ecole Normale Supérieure de Lyon, Laboratoire de Physique, CNRS, UMR 5672, 46 allée d’Italie, F-69364 Lyon Cedex 7, France
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13
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Mossou E, Canadillas Delgado L. D19: a neutron diffractometer for small proteins and chemical crystallography. Acta Crystallogr A Found Adv 2017. [DOI: 10.1107/s2053273317094463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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14
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Wojtas DH, Ayyer K, Liang M, Mossou E, Romoli F, Seuring C, Beyerlein KR, Bean RJ, Morgan AJ, Oberthuer D, Fleckenstein H, Heymann M, Gati C, Yefanov O, Barthelmess M, Ornithopoulou E, Galli L, Xavier PL, Ling WL, Frank M, Yoon CH, White TA, Bajt S, Mitraki A, Boutet S, Aquila A, Barty A, Forsyth VT, Chapman HN, Millane RP. Analysis of XFEL serial diffraction data from individual crystalline fibrils. IUCrJ 2017; 4:795-811. [PMID: 29123682 PMCID: PMC5668865 DOI: 10.1107/s2052252517014324] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 10/04/2017] [Indexed: 06/07/2023]
Abstract
Serial diffraction data collected at the Linac Coherent Light Source from crystalline amyloid fibrils delivered in a liquid jet show that the fibrils are well oriented in the jet. At low fibril concentrations, diffraction patterns are recorded from single fibrils; these patterns are weak and contain only a few reflections. Methods are developed for determining the orientation of patterns in reciprocal space and merging them in three dimensions. This allows the individual structure amplitudes to be calculated, thus overcoming the limitations of orientation and cylindrical averaging in conventional fibre diffraction analysis. The advantages of this technique should allow structural studies of fibrous systems in biology that are inaccessible using existing techniques.
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Affiliation(s)
- David H. Wojtas
- Department of Electrical and Computer Engineering, University of Canterbury, Christchurch, New Zealand
| | - Kartik Ayyer
- Centre for Free-Electron Laser Science, DESY, Hamburg, Germany
| | - Mengning Liang
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Estelle Mossou
- Institut Laue-Langevin, Grenoble, France
- Faculty of Natural Sciences, Keele University, England
| | - Filippo Romoli
- European Synchrotron Radiation Facility, Grenoble, France
| | - Carolin Seuring
- Centre for Free-Electron Laser Science, DESY, Hamburg, Germany
| | | | | | | | | | | | - Michael Heymann
- Centre for Free-Electron Laser Science, DESY, Hamburg, Germany
- Max Planck Institute of Biochemistry, Martinsried, Germany
| | - Cornelius Gati
- Centre for Free-Electron Laser Science, DESY, Hamburg, Germany
| | | | | | - Eirini Ornithopoulou
- Department of Materials Science and Technology, University of Crete and IESL/FORTH, Crete, Greece
| | - Lorenzo Galli
- Centre for Free-Electron Laser Science, DESY, Hamburg, Germany
| | - P. Lourdu Xavier
- Centre for Free-Electron Laser Science, DESY, Hamburg, Germany
- Max-Planck Institute for the Structure and Dynamics of Matter, Hamburg, Germany
| | | | - Matthias Frank
- Lawrence Livermore National Laboratory, Livermore, California, USA
| | - Chun Hong Yoon
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Thomas A. White
- Centre for Free-Electron Laser Science, DESY, Hamburg, Germany
| | - Saša Bajt
- Photon Science, DESY, Hamburg, Germany
| | - Anna Mitraki
- Department of Materials Science and Technology, University of Crete and IESL/FORTH, Crete, Greece
| | - Sebastien Boutet
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Andrew Aquila
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Anton Barty
- Centre for Free-Electron Laser Science, DESY, Hamburg, Germany
| | - V. Trevor Forsyth
- Institut Laue-Langevin, Grenoble, France
- Faculty of Natural Sciences, Keele University, England
| | - Henry N. Chapman
- Centre for Free-Electron Laser Science, DESY, Hamburg, Germany
- Department of Physics, University of Hamburg, Hamburg, Germany
- Centre for Ultrafast Imaging, University of Hamburg, Hamburg, Germany
| | - Rick P. Millane
- Department of Electrical and Computer Engineering, University of Canterbury, Christchurch, New Zealand
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15
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Prigipaki A, Papanikolopoulou K, Mossou E, Mitchell EP, Forsyth VT, Selimis A, Ranella A, Mitraki A. Laser processing of protein films as a method for accomplishment of cell patterning at the microscale. Biofabrication 2017; 9:045004. [PMID: 28837041 DOI: 10.1088/1758-5090/aa8859] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In this study, we propose a photostructuring approach for protein films based on a treatment with nanosecond pulses of a KrF excimer laser. As a model protein we used an amyloid fibril-forming protein. Laser treatment induced a foaming of the sample surface exhibiting an interconnected fibrous mesh with a high degree of control and precision. The surface foaming was well characterized by scanning electron microscopy, atomic force microscopy, laser induced fluorescence and contact angle measurements. The laser irradiated areas of the protein films acquired new morphological and physicochemical properties that could be exploited to fulfill unmet challenges in the tissue engineering field. In this context we subsequently evaluated the response of NIH/3T3 fibroblast cell line on the processed film. Our results show a strong and statistically significant preference for adhesion and proliferation of cells on the irradiated areas compared to the non-irradiated ones. We propose that this strategy can be followed to induce selective cell patterning on protein films at the microscale.
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Affiliation(s)
- Ariadne Prigipaki
- Department of Materials Science and Technology, University of Crete, Vassilika Vouton, 710 03 Heraklion, Crete, Greece. Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology Hellas (FORTH), PO Box 527, Vassilika Vouton, 711 10 Heraklion, Crete, Greece
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16
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Popp D, Loh ND, Zorgati H, Ghoshdastider U, Liow LT, Ivanova MI, Larsson M, DePonte DP, Bean R, Beyerlein KR, Gati C, Oberthuer D, Arnlund D, Brändén G, Berntsen P, Cascio D, Chavas LMG, Chen JPJ, Ding K, Fleckenstein H, Gumprecht L, Harimoorthy R, Mossou E, Sawaya MR, Brewster AS, Hattne J, Sauter NK, Seibert M, Seuring C, Stellato F, Tilp T, Eisenberg DS, Messerschmidt M, Williams GJ, Koglin JE, Makowski L, Millane RP, Forsyth T, Boutet S, White TA, Barty A, Chapman H, Chen SL, Liang M, Neutze R, Robinson RC. Flow-aligned, single-shot fiber diffraction using a femtosecond X-ray free-electron laser. Cytoskeleton (Hoboken) 2017; 74:472-481. [PMID: 28574190 DOI: 10.1002/cm.21378] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 05/25/2017] [Accepted: 05/29/2017] [Indexed: 01/26/2023]
Abstract
A major goal for X-ray free-electron laser (XFEL) based science is to elucidate structures of biological molecules without the need for crystals. Filament systems may provide some of the first single macromolecular structures elucidated by XFEL radiation, since they contain one-dimensional translational symmetry and thereby occupy the diffraction intensity region between the extremes of crystals and single molecules. Here, we demonstrate flow alignment of as few as 100 filaments (Escherichia coli pili, F-actin, and amyloid fibrils), which when intersected by femtosecond X-ray pulses result in diffraction patterns similar to those obtained from classical fiber diffraction studies. We also determine that F-actin can be flow-aligned to a disorientation of approximately 5 degrees. Using this XFEL-based technique, we determine that gelsolin amyloids are comprised of stacked β-strands running perpendicular to the filament axis, and that a range of order from fibrillar to crystalline is discernable for individual α-synuclein amyloids.
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Affiliation(s)
- David Popp
- Institute of Molecular and Cell Biology, Biopolis, A*STAR (Agency for Science, Technology and Research), 138673, Singapore
| | - N Duane Loh
- Department of Physics, National University of Singapore, 117557, Singapore.,Centre for BioImaging Sciences, National University of Singapore, 117546, Singapore
| | - Habiba Zorgati
- Institute of Molecular and Cell Biology, Biopolis, A*STAR (Agency for Science, Technology and Research), 138673, Singapore.,Department of Biochemistry, National University of Singapore, 117597, Singapore
| | - Umesh Ghoshdastider
- Institute of Molecular and Cell Biology, Biopolis, A*STAR (Agency for Science, Technology and Research), 138673, Singapore
| | - Lu Ting Liow
- Department of Medicine, National University of Singapore, 119074, Singapore
| | - Magdalena I Ivanova
- Department of Neurology, University of Michigan, 109 Zina Pitcher Pl, Ann Arbor, Michigan, 48109
| | - Mårten Larsson
- Institute of Molecular and Cell Biology, Biopolis, A*STAR (Agency for Science, Technology and Research), 138673, Singapore
| | - Daniel P DePonte
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California, 94025
| | - Richard Bean
- Center for Free Electron Laser Science, DESY, Notkestrasse 85, Hamburg, 22607, Germany
| | - Kenneth R Beyerlein
- Center for Free Electron Laser Science, DESY, Notkestrasse 85, Hamburg, 22607, Germany
| | - Cornelius Gati
- Center for Free Electron Laser Science, DESY, Notkestrasse 85, Hamburg, 22607, Germany
| | - Dominik Oberthuer
- Center for Free Electron Laser Science, DESY, Notkestrasse 85, Hamburg, 22607, Germany.,Institute of Biochemistry and Molecular Biology, University of Hamburg, Hamburg, 22607, Germany
| | - David Arnlund
- Department of Chemistry and Molecular Biology, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Gisela Brändén
- Department of Chemistry and Molecular Biology, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Peter Berntsen
- Department of Chemistry and Molecular Biology, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Duilio Cascio
- Howard Hughes Medical Institute, University of California, Los Angeles, California, 90095
| | - Leonard M G Chavas
- Center for Free Electron Laser Science, DESY, Notkestrasse 85, Hamburg, 22607, Germany
| | - Joe P J Chen
- Department of Electrical and Computer Engineering, Computational Imaging Group, University of Canterbury, Christchurch, New Zealand
| | - Ke Ding
- Institute of Molecular and Cell Biology, Biopolis, A*STAR (Agency for Science, Technology and Research), 138673, Singapore
| | - Holger Fleckenstein
- Center for Free Electron Laser Science, DESY, Notkestrasse 85, Hamburg, 22607, Germany
| | - Lars Gumprecht
- Center for Free Electron Laser Science, DESY, Notkestrasse 85, Hamburg, 22607, Germany
| | - Rajiv Harimoorthy
- Department of Chemistry and Molecular Biology, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Estelle Mossou
- Institut Laue-Langevin, Grenoble, 38000, France.,EPSAM/ISTM, Keele University, Staffordshire, ST5 5BG, United Kingdom
| | - Michael R Sawaya
- Howard Hughes Medical Institute, University of California, Los Angeles, California, 90095
| | - Aaron S Brewster
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, 94720
| | - Johan Hattne
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, 94720
| | - Nicholas K Sauter
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, 94720
| | - Marvin Seibert
- Department of Cell and Molecular Biology, Molecular Biophysics, Uppsala University, Uppsala, 751 24, Sweden
| | - Carolin Seuring
- Center for Free Electron Laser Science, DESY, Notkestrasse 85, Hamburg, 22607, Germany
| | - Francesco Stellato
- Center for Free Electron Laser Science, DESY, Notkestrasse 85, Hamburg, 22607, Germany
| | - Thomas Tilp
- Center for Free Electron Laser Science, DESY, Notkestrasse 85, Hamburg, 22607, Germany
| | - David S Eisenberg
- Howard Hughes Medical Institute, University of California, Los Angeles, California, 90095
| | - Marc Messerschmidt
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California, 94025
| | - Garth J Williams
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California, 94025
| | - Jason E Koglin
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California, 94025
| | - Lee Makowski
- Department of Bioengineering, Northeastern University, 360 Huntington Ave, Boston, Massachusetts, 02115
| | - Rick P Millane
- Department of Electrical and Computer Engineering, Computational Imaging Group, University of Canterbury, Christchurch, New Zealand
| | - Trevor Forsyth
- Institut Laue-Langevin, Grenoble, 38000, France.,EPSAM/ISTM, Keele University, Staffordshire, ST5 5BG, United Kingdom
| | - Sébastien Boutet
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California, 94025
| | - Thomas A White
- Center for Free Electron Laser Science, DESY, Notkestrasse 85, Hamburg, 22607, Germany
| | - Anton Barty
- Center for Free Electron Laser Science, DESY, Notkestrasse 85, Hamburg, 22607, Germany
| | - Henry Chapman
- Center for Free Electron Laser Science, DESY, Notkestrasse 85, Hamburg, 22607, Germany.,Department of Physics, University of Hamburg, Luruper Chaussee 149, Hamburg, 22607, Germany
| | - Swaine L Chen
- Department of Medicine, National University of Singapore, 119074, Singapore.,Genome Institute of Singapore, Biopolis, A*STAR (Agency for Science, Technology and Research), 138672, Singapore
| | - Mengning Liang
- Center for Free Electron Laser Science, DESY, Notkestrasse 85, Hamburg, 22607, Germany
| | - Richard Neutze
- Department of Chemistry and Molecular Biology, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Robert C Robinson
- Institute of Molecular and Cell Biology, Biopolis, A*STAR (Agency for Science, Technology and Research), 138673, Singapore.,Department of Biochemistry, National University of Singapore, 117597, Singapore.,Research Institute for Interdisciplinary Science, Okayama University, Okayama, 700-8530, Japan
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17
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Rösel S, Quanz H, Logemann C, Becker J, Mossou E, Cañadillas-Delgado L, Caldeweyher E, Grimme S, Schreiner PR. London Dispersion Enables the Shortest Intermolecular Hydrocarbon H···H Contact. J Am Chem Soc 2017; 139:7428-7431. [DOI: 10.1021/jacs.7b01879] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sören Rösel
- Institute
of Organic Chemistry, Justus-Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Henrik Quanz
- Institute
of Organic Chemistry, Justus-Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Christian Logemann
- Institut
für Anorganische und Analytische Chemie, Justus-Liebig Universität, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Jonathan Becker
- Institut
für Anorganische und Analytische Chemie, Justus-Liebig Universität, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Estelle Mossou
- Institute Laue-Langevin, Rue Jules
Horowitz 6, BP 156, 38042 Grenoble Cedex 9, France
- Faculty
of Natural Sciences, Keele University, Staffordshire ST5 5BG, United Kingdom
| | - Laura Cañadillas-Delgado
- Institute Laue-Langevin, Rue Jules
Horowitz 6, BP 156, 38042 Grenoble Cedex 9, France
- Centro Universitario de la Defensa de Zaragoza, Ctra Huesca s/n, 50090 Zaragoza, Spain
| | - Eike Caldeweyher
- Mulliken
Center for Theoretical Chemistry, Institute of Physical and Theoretical
Chemistry, University Bonn, Beringstraße 4, 53115 Bonn, Germany
| | - Stefan Grimme
- Mulliken
Center for Theoretical Chemistry, Institute of Physical and Theoretical
Chemistry, University Bonn, Beringstraße 4, 53115 Bonn, Germany
| | - Peter R. Schreiner
- Institute
of Organic Chemistry, Justus-Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
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18
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Deidda G, Jonnalagadda SVR, Spies JW, Ranella A, Mossou E, Forsyth VT, Mitchell EP, Bowler MW, Tamamis P, Mitraki A. Self-Assembled Amyloid Peptides with Arg-Gly-Asp (RGD) Motifs As Scaffolds for Tissue Engineering. ACS Biomater Sci Eng 2016; 3:1404-1416. [DOI: 10.1021/acsbiomaterials.6b00570] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Graziano Deidda
- Department of Materials Science and Technology, University of Crete, Heraklion 70013, Greece
- Institute
of Electronic Structure and Laser (IESL), Foundation for Research and Technology−Hellas (FORTH), Heraklion 70013, Greece
| | - Sai Vamshi R. Jonnalagadda
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, United States
| | - Jacob W. Spies
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, United States
| | - Anthi Ranella
- Institute
of Electronic Structure and Laser (IESL), Foundation for Research and Technology−Hellas (FORTH), Heraklion 70013, Greece
| | - Estelle Mossou
- Institut Laue Langevin, 6 rue
Jules Horowitz, 38042 Grenoble Cedex 9, France
- Faculty of
Natural Sciences/Institute for Science and Technology in Medicine, Keele University, Staffordshire ST5 5BG, United Kingdom
| | - V. Trevor Forsyth
- Institut Laue Langevin, 6 rue
Jules Horowitz, 38042 Grenoble Cedex 9, France
- Faculty of
Natural Sciences/Institute for Science and Technology in Medicine, Keele University, Staffordshire ST5 5BG, United Kingdom
| | - Edward P. Mitchell
- Faculty of
Natural Sciences/Institute for Science and Technology in Medicine, Keele University, Staffordshire ST5 5BG, United Kingdom
- European Synchrotron Radiation Facility, 6 rue Jules Horowitz, 38043 Grenoble Cedex 9, France
| | - Matthew W. Bowler
- European Molecular Biology Laboratory, Grenoble Outstation, 71 avenue des Martyrs, CS 90181, F-38042 Grenoble, France
- Unit
for Virus Host Cell Interactions, Université Grenoble Alpes−EMBL-CNRS, 71 avenue des Martyrs, CS 90181, F-38042 Grenoble, France
| | - Phanourios Tamamis
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, United States
| | - Anna Mitraki
- Department of Materials Science and Technology, University of Crete, Heraklion 70013, Greece
- Institute
of Electronic Structure and Laser (IESL), Foundation for Research and Technology−Hellas (FORTH), Heraklion 70013, Greece
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19
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Cuypers MG, Mason SA, Mossou E, Haertlein M, Forsyth VT, Mitchell EP. Macromolecular structure phasing by neutron anomalous diffraction. Sci Rep 2016; 6:31487. [PMID: 27511806 PMCID: PMC4980602 DOI: 10.1038/srep31487] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 07/20/2016] [Indexed: 01/07/2023] Open
Abstract
In this report we show for the first time that neutron anomalous dispersion can be used in a practical manner to determine experimental phases of a protein crystal structure, providing a new tool for structural biologists. The approach is demonstrated through the use of a state-of-the-art monochromatic neutron diffractometer at the Institut Laue-Langevin (ILL) in combination with crystals of perdeuterated protein that minimise the level of hydrogen incoherent scattering and enhance the visibility of the anomalous signal. The protein used was rubredoxin in which cadmium replaced the iron at the iron-sulphur site. While this study was carried out using a steady-state neutron beam source, the results will be of major interest for capabilities at existing and emerging spallation neutron sources where time-of-flight instruments provide inherent energy discrimination. In particular this capability may be expected to offer unique opportunities to a rapidly developing structural biology community where there is increasing interest in the identification of protonation states, protein/water interactions and protein-ligand interactions – all of which are of central importance to a wide range of fundamental and applied areas in the biosciences.
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Affiliation(s)
- Maxime G Cuypers
- Faculty of Natural Sciences, Keele University, Staffordshire, ST5 5BG, United Kingdom.,ILL, 71 avenue des Martyrs, 38000 Grenoble, France
| | - Sax A Mason
- ILL, 71 avenue des Martyrs, 38000 Grenoble, France
| | - Estelle Mossou
- Faculty of Natural Sciences, Keele University, Staffordshire, ST5 5BG, United Kingdom.,ILL, 71 avenue des Martyrs, 38000 Grenoble, France
| | | | - V Trevor Forsyth
- Faculty of Natural Sciences, Keele University, Staffordshire, ST5 5BG, United Kingdom.,ILL, 71 avenue des Martyrs, 38000 Grenoble, France
| | - Edward P Mitchell
- Faculty of Natural Sciences, Keele University, Staffordshire, ST5 5BG, United Kingdom.,ESRF, 71 avenue des Martyrs, 38000 Grenoble, France
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Blakeley MP, Mossou E. Neutron macromolecular crystallography at the Institut Laue-Langevin. Acta Crystallogr A Found Adv 2015. [DOI: 10.1107/s2053273315097879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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21
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Berger O, Adler-Abramovich L, Levy-Sakin M, Grunwald A, Liebes-Peer Y, Bachar M, Buzhansky L, Mossou E, Forsyth VT, Schwartz T, Ebenstein Y, Frolow F, Shimon LJW, Patolsky F, Gazit E. Light-emitting self-assembled peptide nucleic acids exhibit both stacking interactions and Watson-Crick base pairing. Nat Nanotechnol 2015; 10:353-360. [PMID: 25775151 DOI: 10.1038/nnano.2015.27] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 02/02/2015] [Indexed: 06/04/2023]
Abstract
The two main branches of bionanotechnology involve the self-assembly of either peptides or DNA. Peptide scaffolds offer chemical versatility, architectural flexibility and structural complexity, but they lack the precise base pairing and molecular recognition available with nucleic acid assemblies. Here, inspired by the ability of aromatic dipeptides to form ordered nanostructures with unique physical properties, we explore the assembly of peptide nucleic acids (PNAs), which are short DNA mimics that have an amide backbone. All 16 combinations of the very short di-PNA building blocks were synthesized and assayed for their ability to self-associate. Only three guanine-containing di-PNAs-CG, GC and GG-could form ordered assemblies, as observed by electron microscopy, and these di-PNAs efficiently assembled into discrete architectures within a few minutes. The X-ray crystal structure of the GC di-PNA showed the occurrence of both stacking interactions and Watson-Crick base pairing. The assemblies were also found to exhibit optical properties including voltage-dependent electroluminescence and wide-range excitation-dependent fluorescence in the visible region.
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Affiliation(s)
- Or Berger
- Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv 69978, Israel
| | - Lihi Adler-Abramovich
- Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv 69978, Israel
| | - Michal Levy-Sakin
- School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv 69978, Israel
| | - Assaf Grunwald
- School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv 69978, Israel
| | - Yael Liebes-Peer
- School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv 69978, Israel
| | - Mor Bachar
- Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv 69978, Israel
| | - Ludmila Buzhansky
- Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv 69978, Israel
| | - Estelle Mossou
- 1] Partnership for Structural Biology, Institut Laue Langevin, 71 Avenue des Martyrs, Grenoble Cedex 9 38042, France [2] Faculty of Natural Sciences, Keele University, Staffordshire ST5 5BG, UK
| | - V Trevor Forsyth
- 1] Partnership for Structural Biology, Institut Laue Langevin, 71 Avenue des Martyrs, Grenoble Cedex 9 38042, France [2] Faculty of Natural Sciences, Keele University, Staffordshire ST5 5BG, UK
| | - Tal Schwartz
- School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv 69978, Israel
| | - Yuval Ebenstein
- School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv 69978, Israel
| | - Felix Frolow
- 1] Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv 69978, Israel [2] Daniella Rich Institute for Structural Biology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv 69978, Israel
| | - Linda J W Shimon
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Fernando Patolsky
- 1] School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv 69978, Israel [2] Department of Materials Science and Engineering, Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Ramat Aviv 69978, Israel
| | - Ehud Gazit
- 1] Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv 69978, Israel [2] Department of Materials Science and Engineering, Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Ramat Aviv 69978, Israel
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22
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Romoli F, Mossou E, Cuypers M, Carpentier P, Van der Linden P, Mason S, De Sanctis D, Mc Sweeney S, Forsyth T. Joint neutron/Xray cryocrystallography: developments for cryocooling experiments. Acta Crystallogr A Found Adv 2014. [DOI: 10.1107/s2053273314087853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Cryo-cooling of protein crystals is not often used in neutron crystallography. However cryo-temperatures are used to block the reaction processes at specific intermediate stages, and this has been widely used in X-ray studies (1); (2). In order to develop this area for joint neutron/X-ray applications, trypsin was chosen as a suitable system for which its interaction with the substrate succinyl-Ala-Ala-Pro-Arg-p-nitro-aniline could be studied (3). Here the neutron developments were carried out in parallel with complementary X-ray techniques, and also using in crystallo UV-visible and Raman spectroscopy. Various strategies for doing this have been tested. The installation of an N2-gas-cryostream system on the D19 single crystal diffractometer at the Institut Laue Langevin (ILL) and the development of a new carboloop mounting system, has opened new avenues to perform cryo-cooling experiments using a neutron source. Preliminary data collection carried out at the ILL and at the European Synchrotron Radiation Facility (ESRF), have confirmed the feasibility of the approach. A full description of the experimental procedures and results will be presented. As part of this a new carboloop mounting system has been developed that is suitable for both X-ray and neutron data collection. These mounts resolve the problems of activation and hydrogen incoherent scattering in neutron experiments We describe the use of these and their advantages over conventional X-ray mounting systems - including compatibility with standard magnetic goniometer heads and resistance to cryogenic temperatures.
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Romoli F, Mossou E, Cuypers M, van der Linden P, Carpentier P, Mason SA, Forsyth VT, McSweeney S. SPINE-compatible `carboloops': a new microshaped vitreous carbon sample mount for X-ray and neutron crystallography. Acta Crystallogr F Struct Biol Commun 2014; 70:681-4. [PMID: 24817737 DOI: 10.1107/s2053230x14005901] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Accepted: 03/17/2014] [Indexed: 11/11/2022]
Abstract
A novel vitreous carbon mount for macromolecular crystallography, suitable for neutron and X-ray crystallographic studies, has been developed. The technology described here is compatible both with X-ray and neutron cryo-crystallography. The mounts have low density and low background scattering for both neutrons and X-rays. They are prepared by laser cutting, allowing high standards of production quality, the ability to custom-design the mount to specific crystal sizes and large-scale production.
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Affiliation(s)
- Filippo Romoli
- European Synchrotron Radiation Facility, 6 Rue Jules Horowitz, 38000 Grenoble, France
| | - Estelle Mossou
- Institut Laue-Langevin, 6 Rue Jules Horowitz, 38042 Grenoble, France
| | - Maxime Cuypers
- Institut Laue-Langevin, 6 Rue Jules Horowitz, 38042 Grenoble, France
| | - Peter van der Linden
- European Synchrotron Radiation Facility, 6 Rue Jules Horowitz, 38000 Grenoble, France
| | - Philippe Carpentier
- European Synchrotron Radiation Facility, 6 Rue Jules Horowitz, 38000 Grenoble, France
| | - Sax A Mason
- Institut Laue-Langevin, 6 Rue Jules Horowitz, 38042 Grenoble, France
| | - V Trevor Forsyth
- European Synchrotron Radiation Facility, 6 Rue Jules Horowitz, 38000 Grenoble, France
| | - Sean McSweeney
- European Synchrotron Radiation Facility, 6 Rue Jules Horowitz, 38000 Grenoble, France
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Mossou E, Teixeira SCM, Mitchell EP, Mason SA, Adler-Abramovich L, Gazit E, Forsyth VT. The self-assembling zwitterionic form ofL-phenylalanine at neutral pH. Acta Crystallogr C Struct Chem 2014; 70:326-31. [DOI: 10.1107/s2053229614002563] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Accepted: 02/04/2014] [Indexed: 11/11/2022]
Abstract
The title zwitterion (2S)-2-azaniumyl-1-hydroxy-3-phenylpropan-1-olate, C9H11NO2, also known as L-phenylalanine, was characterized using synchrotron X-rays. It crystallized in the monoclinic space groupP21with four molecules in the asymmetric unit. The 0.62 Å resolution structure is assumed to be closely related to the fibrillar form of phenylalanine, as observed by electron microscopy and electron diffraction. The structure exists in a zwitterionic form in which π–π stacking and hydrogen-bonding interactions are believed to form the basis of the self-assembling properties.
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Tamamis P, Terzaki K, Kassinopoulos M, Mastrogiannis L, Mossou E, Forsyth VT, Mitchell EP, Mitraki A, Archontis G. Self-Assembly of an Aspartate-Rich Sequence from the Adenovirus Fiber Shaft: Insights from Molecular Dynamics Simulations and Experiments. J Phys Chem B 2014; 118:1765-74. [DOI: 10.1021/jp409988n] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Phanourios Tamamis
- Department
of Physics, University of Cyprus, 75 Kallipoleos Street, CY1678 Nicosia, Cyprus
| | - Konstantina Terzaki
- Department
of Materials Science and Technology, University of Crete, P.O. Box 2208, GR-71003 Heraklion, Crete, Greece
- Institute for Electronic Structure and Laser, FORTH, P.O. Box 1527, GR-71110 Heraklion, Greece
| | - Michalis Kassinopoulos
- Department
of Physics, University of Cyprus, 75 Kallipoleos Street, CY1678 Nicosia, Cyprus
| | - Lefteris Mastrogiannis
- Department
of Materials Science and Technology, University of Crete, P.O. Box 2208, GR-71003 Heraklion, Crete, Greece
- Institute for Electronic Structure and Laser, FORTH, P.O. Box 1527, GR-71110 Heraklion, Greece
| | - Estelle Mossou
- EPSAM/ISTM, Keele University, Keele, Staffordshire ST5
5BG, United Kingdom
- Partnership
for Structural Biology, Institut Laue Langevin, 6 rue Jules Horowitz, 38042 Grenoble Cedex 9, France
| | - V. Trevor Forsyth
- EPSAM/ISTM, Keele University, Keele, Staffordshire ST5
5BG, United Kingdom
- Partnership
for Structural Biology, Institut Laue Langevin, 6 rue Jules Horowitz, 38042 Grenoble Cedex 9, France
| | - Edward P. Mitchell
- Partnership
for Structural Biology, Institut Laue Langevin, 6 rue Jules Horowitz, 38042 Grenoble Cedex 9, France
- European Synchrotron Radiation Facility, 6 rue Jules Horowitz, 38043 Grenoble Cedex 9, France
| | - Anna Mitraki
- Department
of Materials Science and Technology, University of Crete, P.O. Box 2208, GR-71003 Heraklion, Crete, Greece
- Institute for Electronic Structure and Laser, FORTH, P.O. Box 1527, GR-71110 Heraklion, Greece
| | - Georgios Archontis
- Department
of Physics, University of Cyprus, 75 Kallipoleos Street, CY1678 Nicosia, Cyprus
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Terzaki K, Kalloudi E, Mossou E, Mitchell EP, Forsyth VT, Rosseeva E, Simon P, Vamvakaki M, Chatzinikolaidou M, Mitraki A, Farsari M. Mineralized self-assembled peptides on 3D laser-made scaffolds: a new route toward ‘scaffold on scaffold’ hard tissue engineering. Biofabrication 2013; 5:045002. [DOI: 10.1088/1758-5082/5/4/045002] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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27
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Orbach R, Mironi-Harpaz I, Adler-Abramovich L, Mossou E, Mitchell EP, Forsyth VT, Gazit E, Seliktar D. The rheological and structural properties of Fmoc-peptide-based hydrogels: the effect of aromatic molecular architecture on self-assembly and physical characteristics. Langmuir 2012; 28:2015-22. [PMID: 22220968 DOI: 10.1021/la204426q] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Biocompatible hydrogels are of high interest as a class of biomaterials for tissue engineering, regenerative medicine, and controlled drug delivery. These materials offer three-dimensional scaffolds to support the growth of cells and development of hierarchical tissue structures. Fmoc-peptides were previously demonstrated as attractive building blocks for biocompatible hydrogels. Here, we further investigate the biophysical properties of Fmoc-peptide-based hydrogels for medical applications. We describe the structural and thermal properties of these Fmoc-peptides, as well as their self-assembly process. Additionally, we study the role of interactions between aromatic moieties in the self-assembly process and on the physical and structural properties of the hydrogels.
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Affiliation(s)
- Ron Orbach
- Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Science, Tel-Aviv University, Tel-Aviv 69978, Israel
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Tiggelaar SM, Mossou E, Callow P, Callow S, Teixeira SCM, Mitchell EP, Mitraki A, Forsyth VT. Neutron fibre diffraction studies of amyloid using H2O/D2O isotopic replacement. Acta Crystallogr Sect F Struct Biol Cryst Commun 2011; 67:332-5. [PMID: 21393837 PMCID: PMC3053157 DOI: 10.1107/s1744309111002351] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2010] [Accepted: 01/16/2011] [Indexed: 01/09/2023]
Abstract
The first neutron fibre diffraction studies of an amyloid system are presented. The techniques used to prepare the large samples needed are described, as well as the procedures used to isotopically replace H2O in the sample by D2O. The results demonstrate the feasibility of this type of approach for the pursuit of novel structural analyses that will strongly complement X-ray fibre diffraction studies and probe aspects of amyloid structure that to date have remained obscure. The approach is demonstrated using an amyloid form of the peptide NSGAITIG, but is equally applicable for the study of other systems such as Alzheimer's Aβ peptide.
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Affiliation(s)
- Sarah M. Tiggelaar
- Partnership for Structural Biology, Institut Laue–Langevin, France
- Vanderbilt University, Tennessee, USA
| | - Estelle Mossou
- Partnership for Structural Biology, Institut Laue–Langevin, France
- EPSAM/ISTM, Keele University, England
| | - Phil Callow
- Partnership for Structural Biology, Institut Laue–Langevin, France
- EPSAM/ISTM, Keele University, England
| | - Shirley Callow
- Vanderbilt University, Tennessee, USA
- EPSAM/ISTM, Keele University, England
| | - Susana C. M. Teixeira
- Partnership for Structural Biology, Institut Laue–Langevin, France
- EPSAM/ISTM, Keele University, England
| | - Edward P. Mitchell
- EPSAM/ISTM, Keele University, England
- European Synchrotron Radiation Facility, France
| | | | - V. Trevor Forsyth
- Partnership for Structural Biology, Institut Laue–Langevin, France
- EPSAM/ISTM, Keele University, England
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Kasotakis E, Mossou E, Adler-Abramovich L, Mitchell EP, Forsyth VT, Gazit E, Mitraki A. Design of metal-binding sites onto self-assembled peptide fibrils. Biopolymers 2009; 92:164-72. [DOI: 10.1002/bip.21163] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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