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Wang X, Clément R, Roger M, Bauzan M, Mazurenko I, Poulpiquet AD, Ilbert M, Lojou E. Bacterial Respiratory Chain Diversity Reveals a Cytochrome c Oxidase Reducing O 2 at Low Overpotentials. J Am Chem Soc 2019; 141:11093-11102. [PMID: 31274287 DOI: 10.1021/jacs.9b03268] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cytochrome c oxidases (CcOs) are the terminal enzymes in energy-converting chains of microorganisms, where they reduce oxygen into water. Their affinity for O2 makes them attractive biocatalysts for technological devices in which O2 concentration is limited, but the high overpotentials they display on electrodes severely limit their applicative use. Here, the CcO of the acidophilic bacterium Acidithiobacillus ferrooxidans is studied on various carbon materials by direct protein electrochemistry and mediated one with redox mediators either diffusing or co-immobilized at the electrode surface. The entrapment of the CcO in a network of hydrophobic carbon nanofibers permits a direct electrochemical communication between the enzyme and the electrode. We demonstrate that the CcO displays a μM affinity for O2 and reduces O2 at exceptionally high electrode potentials in the range of +700 to +540 mV vs NHE over a pH range of 4-6. The kinetics of interactions between the enzyme and its physiological partners are fully quantified. Based on these results, an electron transfer pathway allowing O2 reduction in the acidic metabolic chain is proposed.
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Affiliation(s)
- Xie Wang
- Aix-Marseille Univ , CNRS, BIP UMR 7281, 31 Chemin Aiguier , CS 70071, 13402 Marseille Cedex 09 , France
| | - Romain Clément
- Aix-Marseille Univ , CNRS, BIP UMR 7281, 31 Chemin Aiguier , CS 70071, 13402 Marseille Cedex 09 , France
| | - Magali Roger
- School of Natural and Environmental Sciences , Newcastle University , Devonshire Building , NE1 7RX , Newcastle upon Tyne , England
| | - Marielle Bauzan
- Aix-Marseille Univ , CNRS, IMM FR 3479, 31 Chemin Aiguier , 13009 Marseille , France
| | - Ievgen Mazurenko
- Aix-Marseille Univ , CNRS, BIP UMR 7281, 31 Chemin Aiguier , CS 70071, 13402 Marseille Cedex 09 , France
| | - Anne de Poulpiquet
- Aix-Marseille Univ , CNRS, BIP UMR 7281, 31 Chemin Aiguier , CS 70071, 13402 Marseille Cedex 09 , France
| | - Marianne Ilbert
- Aix-Marseille Univ , CNRS, BIP UMR 7281, 31 Chemin Aiguier , CS 70071, 13402 Marseille Cedex 09 , France
| | - Elisabeth Lojou
- Aix-Marseille Univ , CNRS, BIP UMR 7281, 31 Chemin Aiguier , CS 70071, 13402 Marseille Cedex 09 , France
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Lebedev N, Stroud RM, Yates MD, Tender LM. Spatially Resolved Chemical Analysis of Geobacter sulfurreducens Cell Surface. ACS NANO 2019; 13:4834-4842. [PMID: 30943001 DOI: 10.1021/acsnano.9b02032] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Geobacter sulfurreducens is of interest for the highest efficiency of power generation and extremely long extracellular electron transfer (EET) between the bacterium and electrodes. Despite more than 15 years of intensive molecular biological research, there is still no clear answer which molecules are responsible for these processes. In the present work, we look at the problem from another (atomic) perspective and identify the location and shape of the compounds that are known to be conductive, particularly those containing Fe atoms. By using highly sophisticated energy dispersive X-ray spectroscopy combined with high-angle annular dark-field transmission electron microscopy enabling detection, identification, and localization of chemical compounds on the surface at nearly atomic spatial resolution, we analyze Fe spatial distribution within the G. sulfurreducens community. We discover the presence of small Fe-containing particles on the surface of the bacterium cells. The size of the particles (diameter 5.6 nm) is highly reproducible and comparable with the size of a single protein. The particles cover about 2% of the cell surface, which is similar to that expected for molecular conductors responsible for electron transfer through the bacterium cell wall. We find that G. sulfurreducens filaments ("bacterial molecular wires") also contain Fe atoms in their bundles. We observe that the bacterium enable changing the distance between the Fe-containing bundles in the filaments from separated to attached (the latter is needed for the efficient electron transfer between the Fe-containing particles), depending on the bacterium metabolic activity and attachment to extracellular substrates. These results are consistent with the recently published research about the role of Fe atoms in protein molecular conductance ( Phys. Chem. Chem. Phys. , 2018 , 20 , 14072 - 14081 ) and show what type of Fe-containing particles are involved in the bacterial extracellular communication. They can be used for the design and construction of artificial biomolecular wires and bioinorganic interfaces.
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Affiliation(s)
- Nikolai Lebedev
- Center for Bio/Molecular Science and Engineering , U.S. Naval Research Laboratory , Washington , DC 20375 , United States
| | - Rhonda M Stroud
- Materials Science and Technology Division , U.S. Naval Research Laboratory , Washington , DC 20375 , United States
| | - Matthew D Yates
- Center for Bio/Molecular Science and Engineering , U.S. Naval Research Laboratory , Washington , DC 20375 , United States
| | - Leonard Martin Tender
- Center for Bio/Molecular Science and Engineering , U.S. Naval Research Laboratory , Washington , DC 20375 , United States
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Gong C, Sun S, Zhang Y, Sun L, Su Z, Wu A, Wei G. Hierarchical nanomaterials via biomolecular self-assembly and bioinspiration for energy and environmental applications. NANOSCALE 2019; 11:4147-4182. [PMID: 30806426 DOI: 10.1039/c9nr00218a] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Bioinspired synthesis offers potential green strategies to build highly complex nanomaterials by utilizing the unique nanostructures, functions, and properties of biomolecules, in which the biomolecular recognition and self-assembly processes play important roles in tailoring the structures and functions of bioinspired materials. Further understanding of biomolecular self-assembly for inspiring the formation and assembly of nanoparticles would promote the design and fabrication of functional nanomaterials for various applications. In this review, we focus on recent advances in bioinspired synthesis and applications of hierarchical nanomaterials based on biomolecular self-assembly. We first discuss biomolecular self-assembly towards biological nanomaterials, in which the mechanisms and ways of biomolecular self-assembly as well as various self-assembled biomolecular nanostructures are demonstrated. Secondly, the bioinspired synthesis strategies including molecule-molecule interaction, molecule-material recognition, molecule-mediated nucleation and growth, and molecule-mediated reduction/oxidation are introduced and discussed. Meanwhile, typical examples and discussions on how biomolecular self-assembly inspires the formation of hierarchical hybrid nanomaterials are presented. Finally, the applications of bioinspired nanomaterials in biofuel cells, light-harvesting systems, batteries, supercapacitors, catalysis, water/air purification, and environmental monitoring are presented and discussed. We believe that this review will be very helpful for readers to understand the self-assembly of biomolecules and the biomimetic/bioinspired strategies for synthesizing hierarchical nanomaterials on the one hand, and on the other hand to design novel materials for extended applications in nanotechnology, materials science, analytical science, and biomedical engineering.
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Affiliation(s)
- Coucong Gong
- Faculty of Production Engineering and Center for Environmental Research and Sustainable technology (UFT), University of Bremen, D-28359 Bremen, Germany.
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Wang X, Roger M, Clément R, Lecomte S, Biaso F, Abriata LA, Mansuelle P, Mazurenko I, Giudici-Orticoni MT, Lojou E, Ilbert M. Electron transfer in an acidophilic bacterium: interaction between a diheme cytochrome and a cupredoxin. Chem Sci 2018; 9:4879-4891. [PMID: 29910941 PMCID: PMC5982212 DOI: 10.1039/c8sc01615a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 04/30/2018] [Indexed: 12/15/2022] Open
Abstract
Acidithiobacillus ferrooxidans, a chemolithoautotrophic Gram-negative bacterium, has a remarkable ability to obtain energy from ferrous iron oxidation at pH 2. Several metalloproteins have been described as being involved in this respiratory chain coupling iron oxidation with oxygen reduction. However, their properties and physiological functions remain largely unknown, preventing a clear understanding of the global mechanism. In this work, we focus on two metalloproteins of this respiratory pathway, a diheme cytochrome c4 (Cyt c4) and a green copper protein (AcoP) of unknown function. We first demonstrate the formation of a complex between these two purified proteins, which allows homogeneous intermolecular electron-transfer in solution. We then mimic the physiological interaction between the two partners by replacing one at a time with electrodes displaying different chemical functionalities. From the electrochemical behavior of individual proteins, we show that, while electron transfer on AcoP requires weak electrostatic interaction, electron transfer on Cyt c4 tolerates different charge and hydrophobicity conditions, suggesting a pivotal role of this protein in the metabolic chain. The electrochemical study of the proteins incubated together demonstrates an intermolecular electron transfer involving the protein complex, in which AcoP is reduced through the high potential heme of Cyt c4. Modelling of the electrochemical signals at different scan rates allows us to estimate the rate constant of this intermolecular electron transfer in the range of a few s-1. Possible routes for electron transfer in the acidophilic bacterium are deduced.
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Affiliation(s)
- X Wang
- Aix Marseille Univ , CNRS , IMM , BIP , UMR 7281 , 31 Chemin Aiguier , 13009 Marseille , France . ;
| | - M Roger
- School of Life Sciences , University of Dundee , Dundee , DD1 5EH , Scotland , UK
| | - R Clément
- Aix Marseille Univ , CNRS , IMM , BIP , UMR 7281 , 31 Chemin Aiguier , 13009 Marseille , France . ;
| | - S Lecomte
- Institute for Chemistry and Biology of Membrane and Nano-objects , Allée Geoffroy St Hilaire , 33600 Pessac , France
| | - F Biaso
- Aix Marseille Univ , CNRS , IMM , BIP , UMR 7281 , 31 Chemin Aiguier , 13009 Marseille , France . ;
| | - L A Abriata
- Laboratory for Biomolecular Modeling , École Polytechnique Fédérale de Lausanne and Swiss Institute of Bioinformatics , AAB014, Station 19 , 1015 Lausanne , Switzerland
| | - P Mansuelle
- Aix Marseille Univ , CNRS , Institut de Microbiologie de la Méditerranée , FR 3479, Plate-forme Protéomique, Marseille Protéomique (MaP), B.P. 71 , 13402 Marseille Cedex 20 , France
| | - I Mazurenko
- School of Biomedical Sciences , Leeds , LS2 9JT , UK
| | - M T Giudici-Orticoni
- Aix Marseille Univ , CNRS , IMM , BIP , UMR 7281 , 31 Chemin Aiguier , 13009 Marseille , France . ;
| | - E Lojou
- Aix Marseille Univ , CNRS , IMM , BIP , UMR 7281 , 31 Chemin Aiguier , 13009 Marseille , France . ;
| | - M Ilbert
- Aix Marseille Univ , CNRS , IMM , BIP , UMR 7281 , 31 Chemin Aiguier , 13009 Marseille , France . ;
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Feifel SC, Stieger KR, Hejazi M, Wang X, Ilbert M, Zouni A, Lojou E, Lisdat F. Dihemic c4-type cytochrome acting as a surrogate electron conduit: Artificially interconnecting a photosystem I supercomplex with electrodes. Electrochem commun 2018. [DOI: 10.1016/j.elecom.2018.05.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Bioelectrodes based on pseudocapacitive cellulose/polypyrrole composite improve performance of biofuel cell. Bioelectrochemistry 2016; 112:184-90. [DOI: 10.1016/j.bioelechem.2016.01.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 01/13/2016] [Accepted: 01/26/2016] [Indexed: 11/17/2022]
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Reconstituted B cell receptor signaling reveals carbohydrate-dependent mode of activation. Sci Rep 2016; 6:36298. [PMID: 27796362 PMCID: PMC5087089 DOI: 10.1038/srep36298] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 10/13/2016] [Indexed: 11/08/2022] Open
Abstract
Activation of immune cells (but not B cells) with lectins is widely known. We used the structurally defined interaction between influenza hemagglutinin (HA) and its cell surface receptor sialic acid (SA) to identify a B cell receptor (BCR) activation modality that proceeded through non-cognate interactions with antigen. Using a new approach to reconstitute antigen-receptor interactions in a human reporter B cell line, we found that sequence-defined BCRs from the human germline repertoire could be triggered by both complementarity to influenza HA and a separate mode of signaling that relied on multivalent ligation of BCR sialyl-oligosaccharide. The latter suggested a new mechanism for priming naïve B cell responses and manifested as the induction of SA-dependent pan-activation by peripheral blood B cells. BCR crosslinking in the absence of complementarity is a superantigen effect induced by some microbial products to subvert production of antigen-specific immune responses. B cell superantigen activity through affinity for BCR carbohydrate is discussed.
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Gutierrez-Sanchez C, Ciaccafava A, Blanchard PY, Monsalve K, Giudici-Orticoni MT, Lecomte S, Lojou E. Efficiency of Enzymatic O2 Reduction by Myrothecium verrucaria Bilirubin Oxidase Probed by Surface Plasmon Resonance, PMIRRAS, and Electrochemistry. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01423] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Alexandre Ciaccafava
- Technische Universität Berlin, Institut für
Chemie, Sekretariat PC
14, D-10623 Berlin, Germany
| | | | - Karen Monsalve
- Aix Marseille Univ, CNRS, BIP, UMR 7281, 31 Chemin Aiguier, 13402 Marseille, France
| | | | - Sophie Lecomte
- Institut for Chemistry and Biology of Membrane and Nanoobjects, Allée Geoffroy St Hilaire, 33600 Pessac, France
| | - Elisabeth Lojou
- Aix Marseille Univ, CNRS, BIP, UMR 7281, 31 Chemin Aiguier, 13402 Marseille, France
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Pelster LN, Minteer SD. Mitochondrial Inner Membrane Biomimic for the Investigation of Electron Transport Chain Supercomplex Bioelectrocatalysis. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00950] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Lindsey N. Pelster
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Shelley D. Minteer
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
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Vatsyayan P. Recent Advances in the Study of Electrochemistry of Redox Proteins. TRENDS IN BIOELECTROANALYSIS 2016. [DOI: 10.1007/11663_2015_5001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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11
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de Poulpiquet A, Ranava D, Monsalve K, Giudici-Orticoni MT, Lojou E. Biohydrogen for a New Generation of H2/O2Biofuel Cells: A Sustainable Energy Perspective. ChemElectroChem 2014. [DOI: 10.1002/celc.201402249] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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12
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Roger M, Biaso F, Castelle CJ, Bauzan M, Chaspoul F, Lojou E, Sciara G, Caffarri S, Giudici-Orticoni MT, Ilbert M. Spectroscopic characterization of a green copper site in a single-domain cupredoxin. PLoS One 2014; 9:e98941. [PMID: 24932914 PMCID: PMC4059628 DOI: 10.1371/journal.pone.0098941] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 05/09/2014] [Indexed: 12/13/2022] Open
Abstract
Cupredoxins are widespread copper-binding proteins, mainly involved in electron transfer pathways. They display a typical rigid greek key motif consisting of an eight stranded β-sandwich. A fascinating feature of cupredoxins is the natural diversity of their copper center geometry. These geometry variations give rise to drastic changes in their color, such as blue, green, red or purple. Based on several spectroscopic and structural analyses, a connection between the geometry of their copper-binding site and their color has been proposed. However, little is known about the relationship between such diversity of copper center geometry in cupredoxins and possible implications for function. This has been difficult to assess, as only a few naturally occurring green and red copper sites have been described so far. We report herein the spectrocopic characterization of a novel kind of single domain cupredoxin of green color, involved in a respiratory pathway of the acidophilic organism Acidithiobacillus ferrooxidans. Biochemical and spectroscopic characterization coupled to bioinformatics analysis reveal the existence of some unusual features for this novel member of the green cupredoxin sub-family. This protein has the highest redox potential reported to date for a green-type cupredoxin. It has a constrained green copper site insensitive to pH or temperature variations. It is a green-type cupredoxin found for the first time in a respiratory pathway. These unique properties might be explained by a region of unknown function never found in other cupredoxins, and by an unusual length of the loop between the second and the fourth copper ligands. These discoveries will impact our knowledge on non-engineered green copper sites, whose involvement in respiratory chains seems more widespread than initially thought.
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Affiliation(s)
- Magali Roger
- Unité de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, CNRS-UMR7281, Aix-Marseille Université, Marseille, France
| | - Frédéric Biaso
- Unité de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, CNRS-UMR7281, Aix-Marseille Université, Marseille, France
| | - Cindy J. Castelle
- Department of Earth and Planetary Science, University of California, Berkeley, California, United States of America
| | - Marielle Bauzan
- Unité de Fermentation, Institut de Microbiologie de la Méditerranée, CNRS-FR 3479, Aix Marseille Université, Marseille, France
| | - Florence Chaspoul
- Unité Chimie Physique, Prévention des Risques et Nuisances Technologiques, Faculté de Pharmacie, CNRS-UMR 7263, Aix-Marseille Université, Marseille, France
| | - Elisabeth Lojou
- Unité de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, CNRS-UMR7281, Aix-Marseille Université, Marseille, France
| | - Giuliano Sciara
- Unité de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, CNRS-UMR7281, Aix-Marseille Université, Marseille, France
| | - Stefano Caffarri
- Unité de Biologie Végétale et Microbiologie Environnementales, CNRS-UMR 7265, CEA, Aix Marseille Université, Marseille, France
| | - Marie-Thérèse Giudici-Orticoni
- Unité de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, CNRS-UMR7281, Aix-Marseille Université, Marseille, France
| | - Marianne Ilbert
- Unité de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, CNRS-UMR7281, Aix-Marseille Université, Marseille, France
- * E-mail:
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Biomimetic Membrane Supported at a Metal Electrode Surface. ADVANCES IN PLANAR LIPID BILAYERS AND LIPOSOMES 2014. [DOI: 10.1016/b978-0-12-418698-9.00001-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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