1
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Podoliak E, Lamm GHU, Marin E, Schellbach AV, Fedotov DA, Stetsenko A, Asido M, Maliar N, Bourenkov G, Balandin T, Baeken C, Astashkin R, Schneider TR, Bateman A, Wachtveitl J, Schapiro I, Busskamp V, Guskov A, Gordeliy V, Alekseev A, Kovalev K. A subgroup of light-driven sodium pumps with an additional Schiff base counterion. Nat Commun 2024; 15:3119. [PMID: 38600129 PMCID: PMC11006869 DOI: 10.1038/s41467-024-47469-0] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 04/01/2024] [Indexed: 04/12/2024] Open
Abstract
Light-driven sodium pumps (NaRs) are unique ion-transporting microbial rhodopsins. The major group of NaRs is characterized by an NDQ motif and has two aspartic acid residues in the central region essential for sodium transport. Here we identify a subgroup of the NDQ rhodopsins bearing an additional glutamic acid residue in the close vicinity to the retinal Schiff base. We thoroughly characterize a member of this subgroup, namely the protein ErNaR from Erythrobacter sp. HL-111 and show that the additional glutamic acid results in almost complete loss of pH sensitivity for sodium-pumping activity, which is in contrast to previously studied NaRs. ErNaR is capable of transporting sodium efficiently even at acidic pH levels. X-ray crystallography and single particle cryo-electron microscopy reveal that the additional glutamic acid residue mediates the connection between the other two Schiff base counterions and strongly interacts with the aspartic acid of the characteristic NDQ motif. Hence, it reduces its pKa. Our findings shed light on a subgroup of NaRs and might serve as a basis for their rational optimization for optogenetics.
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Affiliation(s)
- E Podoliak
- Department of Ophthalmology, University Hospital Bonn, Medical Faculty, Bonn, Germany
| | - G H U Lamm
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt, 60438, Frankfurt am Main, Germany
| | - E Marin
- Groningen Institute for Biomolecular Sciences and Biotechnology, University of Groningen, 9747AG, Groningen, the Netherlands
| | - A V Schellbach
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt, 60438, Frankfurt am Main, Germany
- School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK
| | - D A Fedotov
- Fritz Haber Center for Molecular Dynamics Research, Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - A Stetsenko
- Groningen Institute for Biomolecular Sciences and Biotechnology, University of Groningen, 9747AG, Groningen, the Netherlands
| | - M Asido
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt, 60438, Frankfurt am Main, Germany
| | - N Maliar
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA, UK
| | - G Bourenkov
- European Molecular Biology Laboratory, EMBL Hamburg c/o DESY, 22607, Hamburg, Germany
| | - T Balandin
- Institute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich, Jülich, Germany
- JuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, Jülich, Germany
| | - C Baeken
- Institute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich, Jülich, Germany
- JuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, Jülich, Germany
| | - R Astashkin
- Univ. Grenoble Alpes, CEA, CNRS, Institut de Biologie Structurale (IBS), 38000, Grenoble, France
| | - T R Schneider
- European Molecular Biology Laboratory, EMBL Hamburg c/o DESY, 22607, Hamburg, Germany
| | - A Bateman
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Genome Campus, Hinxton, UK
| | - J Wachtveitl
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt, 60438, Frankfurt am Main, Germany
| | - I Schapiro
- Fritz Haber Center for Molecular Dynamics Research, Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - V Busskamp
- Department of Ophthalmology, University Hospital Bonn, Medical Faculty, Bonn, Germany
| | - A Guskov
- Groningen Institute for Biomolecular Sciences and Biotechnology, University of Groningen, 9747AG, Groningen, the Netherlands
| | - V Gordeliy
- Institute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich, Jülich, Germany
- JuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, Jülich, Germany
- Univ. Grenoble Alpes, CEA, CNRS, Institut de Biologie Structurale (IBS), 38000, Grenoble, France
| | - A Alekseev
- University Medical Center Göttingen, Institute for Auditory Neuroscience and InnerEarLab, Robert-Koch-Str. 40, 37075, Göttingen, Germany.
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, Göttingen, Germany.
| | - K Kovalev
- European Molecular Biology Laboratory, EMBL Hamburg c/o DESY, 22607, Hamburg, Germany.
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2
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Astashkin R, Kovalev K, Bukhdruker S, Vaganova S, Kuzmin A, Alekseev A, Balandin T, Zabelskii D, Gushchin I, Royant A, Volkov D, Bourenkov G, Koonin E, Engelhard M, Bamberg E, Gordeliy V. Structural insights into light-driven anion pumping in cyanobacteria. Nat Commun 2022; 13:6460. [PMID: 36309497 PMCID: PMC9617919 DOI: 10.1038/s41467-022-34019-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 10/11/2022] [Indexed: 12/25/2022] Open
Abstract
Transmembrane ion transport is a key process in living cells. Active transport of ions is carried out by various ion transporters including microbial rhodopsins (MRs). MRs perform diverse functions such as active and passive ion transport, photo-sensing, and others. In particular, MRs can pump various monovalent ions like Na+, K+, Cl-, I-, NO3-. The only characterized MR proposed to pump sulfate in addition to halides belongs to the cyanobacterium Synechocystis sp. PCC 7509 and is named Synechocystis halorhodopsin (SyHR). The structural study of SyHR may help to understand what makes an MR pump divalent ions. Here we present the crystal structure of SyHR in the ground state, the structure of its sulfate-bound form as well as two photoreaction intermediates, the K and O states. These data reveal the molecular origin of the unique properties of the protein (exceptionally strong chloride binding and proposed pumping of divalent anions) and sheds light on the mechanism of anion release and uptake in cyanobacterial halorhodopsins. The unique properties of SyHR highlight its potential as an optogenetics tool and may help engineer different types of anion pumps with applications in optogenetics.
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Affiliation(s)
- R. Astashkin
- grid.450307.50000 0001 0944 2786Univ. Grenoble Alpes, CEA, CNRS, Institut de Biologie Structurale (IBS), Grenoble, France
| | - K. Kovalev
- grid.475756.20000 0004 0444 5410European Molecular Biology Laboratory, Hamburg unit c/o DESY, Hamburg, Germany
| | - S. Bukhdruker
- grid.5398.70000 0004 0641 6373European Synchrotron Radiation Facility Grenoble, Grenoble, France ,grid.8385.60000 0001 2297 375XInstitute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich, Jülich, Germany ,grid.8385.60000 0001 2297 375XJuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, Jülich, Germany
| | - S. Vaganova
- grid.8385.60000 0001 2297 375XInstitute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich, Jülich, Germany ,grid.8385.60000 0001 2297 375XJuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, Jülich, Germany
| | - A. Kuzmin
- grid.18763.3b0000000092721542Research Center for Molecular Mechanisms of Aging and Age-related Diseases, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - A. Alekseev
- grid.18763.3b0000000092721542Research Center for Molecular Mechanisms of Aging and Age-related Diseases, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - T. Balandin
- grid.8385.60000 0001 2297 375XInstitute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich, Jülich, Germany ,grid.8385.60000 0001 2297 375XJuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, Jülich, Germany
| | - D. Zabelskii
- grid.434729.f0000 0004 0590 2900European XFEL GmbH, Schenefeld, Germany
| | - I. Gushchin
- grid.18763.3b0000000092721542Research Center for Molecular Mechanisms of Aging and Age-related Diseases, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - A. Royant
- grid.450307.50000 0001 0944 2786Univ. Grenoble Alpes, CEA, CNRS, Institut de Biologie Structurale (IBS), Grenoble, France ,grid.5398.70000 0004 0641 6373European Synchrotron Radiation Facility Grenoble, Grenoble, France
| | - D. Volkov
- grid.8385.60000 0001 2297 375XInstitute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich, Jülich, Germany ,grid.8385.60000 0001 2297 375XJuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, Jülich, Germany
| | - G. Bourenkov
- grid.475756.20000 0004 0444 5410European Molecular Biology Laboratory, Hamburg unit c/o DESY, Hamburg, Germany
| | - E. Koonin
- grid.419234.90000 0004 0604 5429National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD USA
| | - M. Engelhard
- grid.418441.c0000 0004 0491 3333Department Structural Biochemistry, Max Planck Institute of Molecular Physiology, 44227 Dortmund, Germany
| | - E. Bamberg
- grid.419494.50000 0001 1018 9466Max Planck Institute of Biophysics, Frankfurt am Main, Germany
| | - V. Gordeliy
- grid.450307.50000 0001 0944 2786Univ. Grenoble Alpes, CEA, CNRS, Institut de Biologie Structurale (IBS), Grenoble, France ,grid.8385.60000 0001 2297 375XInstitute of Biological Information Processing (IBI-7: Structural Biochemistry), Forschungszentrum Jülich, Jülich, Germany ,grid.8385.60000 0001 2297 375XJuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, Jülich, Germany
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3
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Alleva C, Kovalev K, Astashkin R, Berndt MI, Baeken C, Balandin T, Gordeliy V, Fahlke C, Machtens JP. Na +-dependent gate dynamics and electrostatic attraction ensure substrate coupling in glutamate transporters. Sci Adv 2020; 6:6/47/eaba9854. [PMID: 33208356 PMCID: PMC7673805 DOI: 10.1126/sciadv.aba9854] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 10/02/2020] [Indexed: 05/22/2023]
Abstract
Excitatory amino acid transporters (EAATs) harness [Na+], [K+], and [H+] gradients for fast and efficient glutamate removal from the synaptic cleft. Since each glutamate is cotransported with three Na+ ions, [Na+] gradients are the predominant driving force for glutamate uptake. We combined all-atom molecular dynamics simulations, fluorescence spectroscopy, and x-ray crystallography to study Na+:substrate coupling in the EAAT homolog GltPh A lipidic cubic phase x-ray crystal structure of wild-type, Na+-only bound GltPh at 2.5-Å resolution revealed the fully open, outward-facing state primed for subsequent substrate binding. Simulations and kinetic experiments established that only the binding of two Na+ ions to the Na1 and Na3 sites ensures complete HP2 gate opening via a conformational selection-like mechanism and enables high-affinity substrate binding via electrostatic attraction. The combination of Na+-stabilized gate opening and electrostatic coupling of aspartate to Na+ binding provides a constant Na+:substrate transport stoichiometry over a broad range of neurotransmitter concentrations.
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Affiliation(s)
- C Alleva
- Institute of Biological Information Processing (IBI-1), Molekular- und Zellphysiologie, and JARA-HPC, Forschungszentrum Jülich, Jülich, Germany
| | - K Kovalev
- Institute of Biological Information Processing (IBI-1), Molekular- und Zellphysiologie, and JARA-HPC, Forschungszentrum Jülich, Jülich, Germany
- Institut de Biologie Structurale (IBS), Université Grenoble Alpes-CEA-CNRS, 38000 Grenoble, France
- Institute of Biological Information Processing (IBI-7), Structural Biochemistry, Forschungszentrum Jülich, Jülich, Germany
- Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
- Institute of Crystallography, RWTH Aachen University, Aachen, Germany
- JuStruct: Jülich Centre for Structural Biology, Forschungszentrum Jülich, Jülich, Germany
| | - R Astashkin
- Institut de Biologie Structurale (IBS), Université Grenoble Alpes-CEA-CNRS, 38000 Grenoble, France
- Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - M I Berndt
- Institute of Biological Information Processing (IBI-1), Molekular- und Zellphysiologie, and JARA-HPC, Forschungszentrum Jülich, Jülich, Germany
| | - C Baeken
- Institute of Biological Information Processing (IBI-7), Structural Biochemistry, Forschungszentrum Jülich, Jülich, Germany
- JuStruct: Jülich Centre for Structural Biology, Forschungszentrum Jülich, Jülich, Germany
| | - T Balandin
- Institute of Biological Information Processing (IBI-7), Structural Biochemistry, Forschungszentrum Jülich, Jülich, Germany
- JuStruct: Jülich Centre for Structural Biology, Forschungszentrum Jülich, Jülich, Germany
| | - V Gordeliy
- Institut de Biologie Structurale (IBS), Université Grenoble Alpes-CEA-CNRS, 38000 Grenoble, France
- Institute of Biological Information Processing (IBI-7), Structural Biochemistry, Forschungszentrum Jülich, Jülich, Germany
- Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
- JuStruct: Jülich Centre for Structural Biology, Forschungszentrum Jülich, Jülich, Germany
| | - Ch Fahlke
- Institute of Biological Information Processing (IBI-1), Molekular- und Zellphysiologie, and JARA-HPC, Forschungszentrum Jülich, Jülich, Germany.
- Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - J-P Machtens
- Institute of Biological Information Processing (IBI-1), Molekular- und Zellphysiologie, and JARA-HPC, Forschungszentrum Jülich, Jülich, Germany.
- Institute of Clinical Pharmacology, RWTH Aachen University, Aachen, Germany
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4
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Kovalev K, Volkov D, Astashkin R, Alekseev A, Gushchin I, Haro-Moreno JM, Chizhov I, Siletsky S, Mamedov M, Rogachev A, Balandin T, Borshchevskiy V, Popov A, Bourenkov G, Bamberg E, Rodriguez-Valera F, Büldt G, Gordeliy V. High-resolution structural insights into the heliorhodopsin family. Proc Natl Acad Sci U S A 2020; 117:4131-4141. [PMID: 32034096 PMCID: PMC7049168 DOI: 10.1073/pnas.1915888117] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Rhodopsins are the most abundant light-harvesting proteins. A new family of rhodopsins, heliorhodopsins (HeRs), has recently been discovered. Unlike in the known rhodopsins, in HeRs the N termini face the cytoplasm. The function of HeRs remains unknown. We present the structures of the bacterial HeR-48C12 in two states at the resolution of 1.5 Å, which highlight its remarkable difference from all known rhodopsins. The interior of HeR's extracellular part is completely hydrophobic, while the cytoplasmic part comprises a cavity (Schiff base cavity [SBC]) surrounded by charged amino acids and containing a cluster of water molecules, presumably being a primary proton acceptor from the Schiff base. At acidic pH, a planar triangular molecule (acetate) is present in the SBC. Structure-based bioinformatic analysis identified 10 subfamilies of HeRs, suggesting their diverse biological functions. The structures and available data suggest an enzymatic activity of HeR-48C12 subfamily and their possible involvement in fundamental redox biological processes.
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Affiliation(s)
- K Kovalev
- Institut de Biologie Structurale J.-P. Ebel, Université Grenoble Alpes-Commission for Atomic Energy (CEA)-CNRS, 38000 Grenoble, France
- Institute of Biological Information Processing (Institute of Biological Information Processing: Structural Biochemistry), Forschungszentrum Jülich, 52428 Jülich, Germany
- JuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, 52428 Jülich, Germany
- Research Center for Mechanisms of Aging and Age Related Diseases, Moscow Institute of Physics and Technology (National Research University), Dolgoprudny 141701, Russia
- Institute of Crystallography, University of Aachen (Rheinisch-Westfälische Technische Hochschule Aachen [RWTH]), 52062 Aachen, Germany
| | - D Volkov
- Institute of Biological Information Processing (Institute of Biological Information Processing: Structural Biochemistry), Forschungszentrum Jülich, 52428 Jülich, Germany
- JuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - R Astashkin
- Institut de Biologie Structurale J.-P. Ebel, Université Grenoble Alpes-Commission for Atomic Energy (CEA)-CNRS, 38000 Grenoble, France
- Research Center for Mechanisms of Aging and Age Related Diseases, Moscow Institute of Physics and Technology (National Research University), Dolgoprudny 141701, Russia
| | - A Alekseev
- Institute of Biological Information Processing (Institute of Biological Information Processing: Structural Biochemistry), Forschungszentrum Jülich, 52428 Jülich, Germany
- JuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, 52428 Jülich, Germany
- Research Center for Mechanisms of Aging and Age Related Diseases, Moscow Institute of Physics and Technology (National Research University), Dolgoprudny 141701, Russia
- Institute of Crystallography, University of Aachen (Rheinisch-Westfälische Technische Hochschule Aachen [RWTH]), 52062 Aachen, Germany
| | - I Gushchin
- Research Center for Mechanisms of Aging and Age Related Diseases, Moscow Institute of Physics and Technology (National Research University), Dolgoprudny 141701, Russia
| | - J M Haro-Moreno
- Evolutionary Genomics Group, Departamento de Producción Vegetal y Microbiología, Universidad Miguel Hernández, 03202 San Juan de Alicante, Spain
| | - I Chizhov
- Institute for Biophysical Chemistry, Hannover Medical School, 30625 Hannover, Germany
| | - S Siletsky
- Belozersky Institute of Physical-Chemical Biology, Lomonosov Moscow State University, Moscow 119234, Russia
| | - M Mamedov
- Belozersky Institute of Physical-Chemical Biology, Lomonosov Moscow State University, Moscow 119234, Russia
| | - A Rogachev
- Research Center for Mechanisms of Aging and Age Related Diseases, Moscow Institute of Physics and Technology (National Research University), Dolgoprudny 141701, Russia
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - T Balandin
- Institute of Biological Information Processing (Institute of Biological Information Processing: Structural Biochemistry), Forschungszentrum Jülich, 52428 Jülich, Germany
- JuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, 52428 Jülich, Germany
| | - V Borshchevskiy
- Research Center for Mechanisms of Aging and Age Related Diseases, Moscow Institute of Physics and Technology (National Research University), Dolgoprudny 141701, Russia
| | - A Popov
- Structural Biology Group, European Synchrotron Radiation Facility, 38000 Grenoble, France
| | - G Bourenkov
- Hamburg Unit care of Deutsches Elektronen-Synchrotron (DESY), European Molecular Biology Laboratory, 22607 Hamburg, Germany
| | - E Bamberg
- Research Center for Mechanisms of Aging and Age Related Diseases, Moscow Institute of Physics and Technology (National Research University), Dolgoprudny 141701, Russia
- Biophysical Chemistry, Max Planck Institute of Biophysics, 60438 Frankfurt am Main, Germany
| | - F Rodriguez-Valera
- Research Center for Mechanisms of Aging and Age Related Diseases, Moscow Institute of Physics and Technology (National Research University), Dolgoprudny 141701, Russia
- Evolutionary Genomics Group, Departamento de Producción Vegetal y Microbiología, Universidad Miguel Hernández, 03202 San Juan de Alicante, Spain
| | - G Büldt
- Research Center for Mechanisms of Aging and Age Related Diseases, Moscow Institute of Physics and Technology (National Research University), Dolgoprudny 141701, Russia
| | - V Gordeliy
- Institut de Biologie Structurale J.-P. Ebel, Université Grenoble Alpes-Commission for Atomic Energy (CEA)-CNRS, 38000 Grenoble, France;
- Institute of Biological Information Processing (Institute of Biological Information Processing: Structural Biochemistry), Forschungszentrum Jülich, 52428 Jülich, Germany
- JuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, 52428 Jülich, Germany
- Research Center for Mechanisms of Aging and Age Related Diseases, Moscow Institute of Physics and Technology (National Research University), Dolgoprudny 141701, Russia
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5
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Polovinkin V, Gushchin I, Sintsov M, Round E, Balandin T, Chervakov P, Shevchenko V, Utrobin P, Popov A, Borshchevskiy V, Mishin A, Kuklin A, Willbold D, Chupin V, Popot JL, Gordeliy V. Erratum to: High-Resolution Structure of a Membrane Protein Transferred from Amphipol to a Lipidic Mesophase. J Membr Biol 2017; 250:237. [PMID: 28229180 DOI: 10.1007/s00232-017-9949-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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)
- V Polovinkin
- Univ. Grenoble Alpes, IBS, 38044, Grenoble, France.,CNRS, IBS, 38044, Grenoble, France.,CEA, IBS, 38044, Grenoble, France.,Laboratory for Advanced Studies of Membrane Proteins, Moscow Institute of Physics and Technology, 141700, Dolgoprudny, Moscow Region, Russia
| | - I Gushchin
- Univ. Grenoble Alpes, IBS, 38044, Grenoble, France.,CNRS, IBS, 38044, Grenoble, France.,CEA, IBS, 38044, Grenoble, France.,Laboratory for Advanced Studies of Membrane Proteins, Moscow Institute of Physics and Technology, 141700, Dolgoprudny, Moscow Region, Russia
| | - M Sintsov
- Laboratory for Advanced Studies of Membrane Proteins, Moscow Institute of Physics and Technology, 141700, Dolgoprudny, Moscow Region, Russia
| | - E Round
- Institute of Complex Systems (ICS), ICS-6: Structural Biochemistry, Research Centre Juelich, 52425, Juelich, Germany
| | - T Balandin
- Institute of Complex Systems (ICS), ICS-6: Structural Biochemistry, Research Centre Juelich, 52425, Juelich, Germany
| | - P Chervakov
- Institute of Complex Systems (ICS), ICS-6: Structural Biochemistry, Research Centre Juelich, 52425, Juelich, Germany
| | - V Shevchenko
- Institute of Complex Systems (ICS), ICS-6: Structural Biochemistry, Research Centre Juelich, 52425, Juelich, Germany
| | - P Utrobin
- Univ. Grenoble Alpes, IBS, 38044, Grenoble, France.,CNRS, IBS, 38044, Grenoble, France.,CEA, IBS, 38044, Grenoble, France
| | - A Popov
- European Synchrotron Radiation Facility, 38027, Grenoble, France
| | - V Borshchevskiy
- Laboratory for Advanced Studies of Membrane Proteins, Moscow Institute of Physics and Technology, 141700, Dolgoprudny, Moscow Region, Russia.,Institute of Complex Systems (ICS), ICS-6: Structural Biochemistry, Research Centre Juelich, 52425, Juelich, Germany
| | - A Mishin
- Laboratory for Advanced Studies of Membrane Proteins, Moscow Institute of Physics and Technology, 141700, Dolgoprudny, Moscow Region, Russia
| | - A Kuklin
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980, Dubna, Moscow Region, Russia
| | - D Willbold
- Institute of Complex Systems (ICS), ICS-6: Structural Biochemistry, Research Centre Juelich, 52425, Juelich, Germany.,Institut für Physikalische Biologie, Heinrich-Heine-Universität Düsseldorf, 40225, Düsseldorf, Germany
| | - V Chupin
- Laboratory for Advanced Studies of Membrane Proteins, Moscow Institute of Physics and Technology, 141700, Dolgoprudny, Moscow Region, Russia
| | - J-L Popot
- Laboratoire de Physico-Chimie Moléculaire des Membranes Biologiques, UMR 7099, Institut de Biologie Physico-Chimique (CNRS FRC 550), Centre National de la Recherche Scientifique and Université Paris-7, 13 rue Pierre et Marie Curie, 75005, Paris, France
| | - V Gordeliy
- Univ. Grenoble Alpes, IBS, 38044, Grenoble, France. .,CNRS, IBS, 38044, Grenoble, France. .,CEA, IBS, 38044, Grenoble, France. .,Laboratory for Advanced Studies of Membrane Proteins, Moscow Institute of Physics and Technology, 141700, Dolgoprudny, Moscow Region, Russia. .,Institute of Complex Systems (ICS), ICS-6: Structural Biochemistry, Research Centre Juelich, 52425, Juelich, Germany.
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6
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Ishchenko A, Round E, Borshchevskiy V, Grudinin S, Gushchin I, Klare JP, Remeeva A, Polovinkin V, Utrobin P, Balandin T, Engelhard M, Büldt G, Gordeliy V. New Insights on Signal Propagation by Sensory Rhodopsin II/Transducer Complex. Sci Rep 2017; 7:41811. [PMID: 28165484 PMCID: PMC5292967 DOI: 10.1038/srep41811] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [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: 07/25/2016] [Accepted: 12/01/2016] [Indexed: 01/29/2023] Open
Abstract
The complex of two membrane proteins, sensory rhodopsin II (NpSRII) with its cognate transducer (NpHtrII), mediates negative phototaxis in halobacteria N. pharaonis. Upon light activation NpSRII triggers a signal transduction chain homologous to the two-component system in eubacterial chemotaxis. Here we report on crystal structures of the ground and active M-state of the complex in the space group I212121. We demonstrate that the relative orientation of symmetrical parts of the dimer is parallel (“U”-shaped) contrary to the gusset-like (“V”-shaped) form of the previously reported structures of the NpSRII/NpHtrII complex in the space group P21212, although the structures of the monomers taken individually are nearly the same. Computer modeling of the HAMP domain in the obtained “V”- and “U”-shaped structures revealed that only the “U”-shaped conformation allows for tight interactions of the receptor with the HAMP domain. This is in line with existing data and supports biological relevance of the “U” shape in the ground state. We suggest that the “V”-shaped structure may correspond to the active state of the complex and transition from the “U” to the “V”-shape of the receptor-transducer complex can be involved in signal transduction from the receptor to the signaling domain of NpHtrII.
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Affiliation(s)
- A Ishchenko
- Institute of Complex Systems (ICS), ICS-6: Structural Biochemistry, Research Centre Jülich, 52425 Jülich, Germany.,Institute of Crystallography, University of Aachen (RWTH), Jägerstraße 17-19, 52056 Aachen, Germany
| | - E Round
- Institute of Complex Systems (ICS), ICS-6: Structural Biochemistry, Research Centre Jülich, 52425 Jülich, Germany.,Institut de Biologie Structurale J.-P. Ebel, Université Grenoble Alpes-CEA-CNRS, F-38000 Grenoble, France
| | - V Borshchevskiy
- Institute of Complex Systems (ICS), ICS-6: Structural Biochemistry, Research Centre Jülich, 52425 Jülich, Germany.,Moscow Institute of Physics and Technology, 141700 Dolgoprudniy, Russia
| | - S Grudinin
- CNRS, Laboratoire Jean Kuntzmann, BP 53, Grenoble Cedex 9, France.,NANO-D, INRIA Grenoble-Rhone-Alpes Research Center, 38334 Saint Ismier Cedex, Montbonnot, France
| | - I Gushchin
- Institute of Complex Systems (ICS), ICS-6: Structural Biochemistry, Research Centre Jülich, 52425 Jülich, Germany.,Institut de Biologie Structurale J.-P. Ebel, Université Grenoble Alpes-CEA-CNRS, F-38000 Grenoble, France.,Moscow Institute of Physics and Technology, 141700 Dolgoprudniy, Russia
| | - J P Klare
- Max-Planck Institute of Molecular Physiology, 44227 Dortmund, Germany.,Department of Physics, University of Osnabrück, Barbarastrasse 7, D-49069 Osnabrück, Germany
| | - A Remeeva
- Institute of Complex Systems (ICS), ICS-6: Structural Biochemistry, Research Centre Jülich, 52425 Jülich, Germany
| | - V Polovinkin
- Institute of Complex Systems (ICS), ICS-6: Structural Biochemistry, Research Centre Jülich, 52425 Jülich, Germany.,Institut de Biologie Structurale J.-P. Ebel, Université Grenoble Alpes-CEA-CNRS, F-38000 Grenoble, France
| | - P Utrobin
- Moscow Institute of Physics and Technology, 141700 Dolgoprudniy, Russia
| | - T Balandin
- Institute of Complex Systems (ICS), ICS-6: Structural Biochemistry, Research Centre Jülich, 52425 Jülich, Germany
| | - M Engelhard
- Max-Planck Institute of Molecular Physiology, 44227 Dortmund, Germany
| | - G Büldt
- Institute of Complex Systems (ICS), ICS-6: Structural Biochemistry, Research Centre Jülich, 52425 Jülich, Germany.,Moscow Institute of Physics and Technology, 141700 Dolgoprudniy, Russia
| | - V Gordeliy
- Institute of Complex Systems (ICS), ICS-6: Structural Biochemistry, Research Centre Jülich, 52425 Jülich, Germany.,Institute of Crystallography, University of Aachen (RWTH), Jägerstraße 17-19, 52056 Aachen, Germany.,Institut de Biologie Structurale J.-P. Ebel, Université Grenoble Alpes-CEA-CNRS, F-38000 Grenoble, France.,Moscow Institute of Physics and Technology, 141700 Dolgoprudniy, Russia
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7
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Polovinkin V, Balandin T, Volkov O, Round E, Borshchevskiy V, Utrobin P, von Stetten D, Royant A, Willbold D, Arzumanyan G, Chupin V, Popot JL, Gordeliy V. Nanoparticle Surface-Enhanced Raman Scattering of Bacteriorhodopsin Stabilized by Amphipol A8-35. J Membr Biol 2014; 247:971-80. [DOI: 10.1007/s00232-014-9701-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 06/16/2014] [Indexed: 11/28/2022]
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8
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Ishchenko A, Round E, Borshchevskiy V, Grudinin S, Gushchin I, Klare J, Balandin T, Remeeva A, Engelhard M, Büldt G, Gordeliy V. Ground state structure of D75N mutant of sensory rhodopsin II in complex with its cognate transducer. Journal of Photochemistry and Photobiology B: Biology 2013; 123:55-8. [DOI: 10.1016/j.jphotobiol.2013.03.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2012] [Revised: 02/27/2013] [Accepted: 03/19/2013] [Indexed: 11/15/2022]
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9
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Balgavý P, Uhríková D, Karlovská J, Dubnicková M, Kucerka N, Devínsky F, Lacko I, Cizmárik J, Lohner K, Degovics G, Rapp G, Yaradaikin S, Kiselev M, Islamov A, Gordeliy V. X-ray diffraction and neutron scattering studies of amphiphile-lipid bilayer organization. Cell Mol Biol Lett 2002; 6:283-90. [PMID: 11598648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023] Open
Abstract
The lipid bilayer thickness d(L), the transbilayer distance of lipid phosphate groups d(pp/inf> and the lipid surface area A(L) of fluid hydrated bilayers of lamellar phases of egg phosphatidylcholine or dipalmitoylphosphatidylcholine containing N-alkyl-N,N-dimethylamine N-oxides (CnNO), 1,4-butanedi-ammonium-N,N'-dialkyl-N,N,N',N'-tetramethyl dibromides (GSn) or mono-hydrochlorides of [2-(alkyloxy)phenyl]-2-(1-piperidinyl)ethylesters of carbamic acid (CnA) were obtained by X-ray diffraction, and the bilayer thickness in extruded unilamellar dioleoylphosphatidylcholine vesicles containing C12NO was obtained by the neutron scattering. The values of d(L), d(pp/inf> and A(L) change linearly up to the 1:1 amphiphile:lipid molar ratio. The slopes of these dependencies increase for d(L) and d(pp/inf> and decrease for AL) with an increasing number of carbons n in the amphiphile long hydrocarbon substituent (18> or =n> or =8 for CnNO, 16> or =n> or =9 for GSn, 12> or =n> or =5 for CnA), while the opposite trends are observed for the short substituent (8> or =n>/=6 for CnNO, 9> or =n> or =7 for GSn, 5> or =n> or =3 for CnA). In case of long substituents, the effects on dL), dpp/inf> and AL) are caused by the decrease in the difference between the lipid and amphiphile hydrocarbon chain lengths and by the increase in their van der Waals attraction. The short substituent amphiphiles are mobile and exchange between multiple binding sites in the bilayer, minimizing the bilayer surface area.
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Affiliation(s)
- P Balgavý
- Faculty of Pharmacy, Comenius University, SK-832 32 Bratislava, Slovakia
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10
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Uhríková D, Kucerka N, Islamov A, Gordeliy V, Balgavý P. Small-angle neutron scattering study of N-dodecyl-N,N-dimethylamine N-oxide induced solubilization of dioleoylphosphatidylcholine bilayers in liposomes. Gen Physiol Biophys 2001; 20:183-9. [PMID: 11519689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Mixtures of N-dodecyl-N,N-dimethylamine N-oxide (DDAO) and 1,2-dioleoylphosphatidyl choline (DOPC) in chloroform/methanol were evaporated, dried and hydrated in excess 2H2O. Aqueous dispersions thus prepared were extruded through polycarbonate filter with pores of diameter 500A. These samples were studied using small-angle neutron scattering. DDAO destabilizes the bilayer in unilamellar liposomes and solubilizes it into mixed micelles whose shape changes with the DDAO : DOPC molar ratio. Bilayers or/and bilayer fragments have been observed up to DDAO : DOPC = 1.5, rod-like particles (tubular, cylindric micelles) at 2.5 < DDAO : DOPC < 3.5, and transition to globular particles (spheroid micelles) at DDAO: DOPC > 4. In bilayers or/and bilayer fragments, DDAO modulates the thickness of the bilayer.
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Affiliation(s)
- D Uhríková
- Department of Physical Chemistry of Drugs, Faculty of Pharmacy, Comenius University, Bratislava, Slovakia
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11
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Uhríková D, Balgavý P, Kucerka N, Islamov A, Gordeliy V, Kuklin A. Small-angle neutron scattering study of the n-decane effect on the bilayer thickness in extruded unilamellar dioleoylphosphatidylcholine liposomes. Biophys Chem 2000; 88:165-70. [PMID: 11152273 DOI: 10.1016/s0301-4622(00)00211-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Dioleoylphosphatidylcholine (DOPC) and n-decane were mixed and hydrated afterwards in an excess of heavy water at 1 wt.% of DOPC. From this dispersion, unilamellar liposomes were prepared by extrusion through polycarbonate filter with 500-A pores. Small-angle neutron scattering (SANS) was conducted on these liposomes. From the Kratky-Porod plot ln[I(Q)Q2] vs. Q2 of SANS intensity I(Q) in the range of scattering vectors Q corresponding to the interval 0.001 A(-2) < or = Q2 < or = 0.006 A(-2), the liposome bilayer radius of gyration Rg and the bilayer thickness parameter d(g) = 12(0.5)Rg were obtained. The values of d(g) indicated that the bilayer thickness is within the experimental error constant up to n-decane/DOPC approximately 0.5 molar ratio, and then increases by 2.4 +/- 1.3 A up to n-decane/DOPC = 1.2 molar ratio.
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Affiliation(s)
- D Uhríková
- Faculty of Pharmacy, J.A. Comenius University, Bratislava, Slovakia
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12
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Dubnicková M, Kiselev M, Kutuzov S, Devínsky F, Gordeliy V, Balgavý P. Effect of N-lauryl-N,N-dimethylamine N-oxide on dimyristoyl phosphatidylcholine bilayer thickness: a small-angle neutron scattering study. Gen Physiol Biophys 1997; 16:175-88. [PMID: 9437258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Small-angle neutron scattering on large extruded unilamellar dimyristoyl phosphatidylcholine (DMPC) liposomes was used to determine the DMPC bilayer thickness dL and its change in the presence of N-lauryl-N,N-dimethylamine N-oxide (LDAO). At 36 degrees C, the values of dL are dL = 3.44 +/- 0.10 nm and dL = 2.90 +/- 0.10 nm in pure DMPC bilayers and in bilayers at DMPC:LDAO = 2:1 molar ratio, respectively. Using the specific volumes of DMPC and LDAO and supposing that the molecular volumes and surface areas in the bilayer are additive, the surface areas of DMPC (ADMPC) and of LDAO (ALDAO) were found to be at 36 degrees C: ADMPC = 0.644 +/- 0.018 nm2 and ALDAO = 0.25 +/- 0.05 nm2.
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Affiliation(s)
- M Dubnicková
- Faculty of Pharmacy, J. A. Comenius University, Bratislava, Slovakia
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