1
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Fasano A, Fourmond V, Léger C. Outer-sphere effects on the O 2 sensitivity, catalytic bias and catalytic reversibility of hydrogenases. Chem Sci 2024; 15:5418-5433. [PMID: 38638217 PMCID: PMC11023054 DOI: 10.1039/d4sc00691g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 03/15/2024] [Indexed: 04/20/2024] Open
Abstract
The comparison of homologous metalloenzymes, in which the same inorganic active site is surrounded by a variable protein matrix, has demonstrated that residues that are remote from the active site may have a great influence on catalytic properties. In this review, we summarise recent findings on the diverse molecular mechanisms by which the protein matrix may define the oxygen tolerance, catalytic directionality and catalytic reversibility of hydrogenases, enzymes that catalyse the oxidation and evolution of H2. These mechanisms involve residues in the second coordination sphere of the active site metal ion, more distant residues affecting protein flexibility through their side chains, residues lining the gas channel and even accessory subunits. Such long-distance effects, which contribute to making enzymes efficient, robust and different from one another, are a source of wonder for biochemists and a challenge for synthetic bioinorganic chemists.
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Affiliation(s)
- Andrea Fasano
- Laboratoire de Bioénergétique et Ingénierie des Protéines, CNRS, Aix Marseille Université, UMR 7281 Marseille France
| | - Vincent Fourmond
- Laboratoire de Bioénergétique et Ingénierie des Protéines, CNRS, Aix Marseille Université, UMR 7281 Marseille France
| | - Christophe Léger
- Laboratoire de Bioénergétique et Ingénierie des Protéines, CNRS, Aix Marseille Université, UMR 7281 Marseille France
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2
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Fasano A, Guendon C, Jacq-Bailly A, Kpebe A, Wozniak J, Baffert C, Barrio MD, Fourmond V, Brugna M, Léger C. A Chimeric NiFe Hydrogenase Heterodimer to Assess the Role of the Electron Transfer Chain in Tuning the Enzyme's Catalytic Bias and Oxygen Tolerance. J Am Chem Soc 2023; 145:20021-20030. [PMID: 37657413 DOI: 10.1021/jacs.3c06895] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/03/2023]
Abstract
The observation that some homologous enzymes have the same active site but very different catalytic properties demonstrates the importance of long-range effects in enzyme catalysis, but these effects are often difficult to rationalize. The NiFe hydrogenases 1 and 2 (Hyd 1 and Hyd 2) from E. coli both consist of a large catalytic subunit that embeds the same dinuclear active site and a small electron-transfer subunit with a chain of three FeS clusters. Hyd 1 is mostly active in H2 oxidation and resistant to inhibitors, whereas Hyd 2 also catalyzes H2 production and is strongly inhibited by O2 and CO. Based on structural and site-directed mutagenesis data, it is currently believed that the catalytic bias and tolerance to O2 of Hyd 1 are defined by the distal and proximal FeS clusters, respectively. To test these hypotheses, we produced and characterized a hybrid enzyme made of the catalytic subunit of Hyd 1 and the electron transfer subunit of Hyd 2. We conclude that catalytic bias and sensitivity to CO are set by the catalytic subunit rather than by the electron transfer chain. We confirm the importance of the proximal cluster in making the enzyme Hyd 1 resist long-term exposure to O2, but we show that other structural determinants, in both subunits, contribute to O2 tolerance. A similar strategy based on the design of chimeric heterodimers could be used in the future to elucidate various structure-function relationships in hydrogenases and other multimeric metalloenzymes and to engineer useful hydrogenases that combine the desirable properties of distinct, homologous enzymes.
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Affiliation(s)
- Andrea Fasano
- Laboratoire de Bioénergétique et Ingénierie des Protéines, CNRS, Aix Marseille Université, UMR 7281, Marseille, France
| | - Chloé Guendon
- Laboratoire de Bioénergétique et Ingénierie des Protéines, CNRS, Aix Marseille Université, UMR 7281, Marseille, France
| | - Aurore Jacq-Bailly
- Laboratoire de Bioénergétique et Ingénierie des Protéines, CNRS, Aix Marseille Université, UMR 7281, Marseille, France
| | - Arlette Kpebe
- Laboratoire de Bioénergétique et Ingénierie des Protéines, CNRS, Aix Marseille Université, UMR 7281, Marseille, France
| | - Jérémy Wozniak
- Laboratoire de Bioénergétique et Ingénierie des Protéines, CNRS, Aix Marseille Université, UMR 7281, Marseille, France
| | - Carole Baffert
- Laboratoire de Bioénergétique et Ingénierie des Protéines, CNRS, Aix Marseille Université, UMR 7281, Marseille, France
| | - Melisa Del Barrio
- Laboratoire de Bioénergétique et Ingénierie des Protéines, CNRS, Aix Marseille Université, UMR 7281, Marseille, France
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid, 28040 Madrid, Spain
| | - Vincent Fourmond
- Laboratoire de Bioénergétique et Ingénierie des Protéines, CNRS, Aix Marseille Université, UMR 7281, Marseille, France
| | - Myriam Brugna
- Laboratoire de Bioénergétique et Ingénierie des Protéines, CNRS, Aix Marseille Université, UMR 7281, Marseille, France
| | - Christophe Léger
- Laboratoire de Bioénergétique et Ingénierie des Protéines, CNRS, Aix Marseille Université, UMR 7281, Marseille, France
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3
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Grinter R, Kropp A, Venugopal H, Senger M, Badley J, Cabotaje PR, Jia R, Duan Z, Huang P, Stripp ST, Barlow CK, Belousoff M, Shafaat HS, Cook GM, Schittenhelm RB, Vincent KA, Khalid S, Berggren G, Greening C. Structural basis for bacterial energy extraction from atmospheric hydrogen. Nature 2023; 615:541-547. [PMID: 36890228 PMCID: PMC10017518 DOI: 10.1038/s41586-023-05781-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 02/02/2023] [Indexed: 03/10/2023]
Abstract
Diverse aerobic bacteria use atmospheric H2 as an energy source for growth and survival1. This globally significant process regulates the composition of the atmosphere, enhances soil biodiversity and drives primary production in extreme environments2,3. Atmospheric H2 oxidation is attributed to uncharacterized members of the [NiFe] hydrogenase superfamily4,5. However, it remains unresolved how these enzymes overcome the extraordinary catalytic challenge of oxidizing picomolar levels of H2 amid ambient levels of the catalytic poison O2 and how the derived electrons are transferred to the respiratory chain1. Here we determined the cryo-electron microscopy structure of the Mycobacterium smegmatis hydrogenase Huc and investigated its mechanism. Huc is a highly efficient oxygen-insensitive enzyme that couples oxidation of atmospheric H2 to the hydrogenation of the respiratory electron carrier menaquinone. Huc uses narrow hydrophobic gas channels to selectively bind atmospheric H2 at the expense of O2, and 3 [3Fe-4S] clusters modulate the properties of the enzyme so that atmospheric H2 oxidation is energetically feasible. The Huc catalytic subunits form an octameric 833 kDa complex around a membrane-associated stalk, which transports and reduces menaquinone 94 Å from the membrane. These findings provide a mechanistic basis for the biogeochemically and ecologically important process of atmospheric H2 oxidation, uncover a mode of energy coupling dependent on long-range quinone transport, and pave the way for the development of catalysts that oxidize H2 in ambient air.
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Affiliation(s)
- Rhys Grinter
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia.
| | - Ashleigh Kropp
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Hari Venugopal
- Ramaciotti Centre for Cryo-Electron Microscopy, Monash University, Clayton, Victoria, Australia
| | - Moritz Senger
- Department of Chemistry, Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Jack Badley
- Department of Biochemistry, University of Oxford, Oxford, UK
| | - Princess R Cabotaje
- Department of Chemistry, Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Ruyu Jia
- Department of Biochemistry, University of Oxford, Oxford, UK
| | - Zehui Duan
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, Oxford, UK
| | - Ping Huang
- Department of Chemistry, Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Sven T Stripp
- Department of Physics, Experimental Molecular Biophysics, Freie Universität Berlin, Berlin, Germany
| | - Christopher K Barlow
- Department of Biochemistry, Monash Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
- Monash Proteomics and Metabolomics Facility, Monash Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Matthew Belousoff
- Centre for Electron Microscopy of Membrane Proteins, Monash Institute of Pharmaceutical Sciences, Parkville, Victoria, Australia
| | - Hannah S Shafaat
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Gregory M Cook
- Department of Microbiology and Immunology, University of Otago, Dunedin, New Zealand
| | - Ralf B Schittenhelm
- Department of Biochemistry, Monash Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
- Monash Proteomics and Metabolomics Facility, Monash Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Kylie A Vincent
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, Oxford, UK
| | - Syma Khalid
- Department of Biochemistry, University of Oxford, Oxford, UK
| | - Gustav Berggren
- Department of Chemistry, Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Chris Greening
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia.
- Securing Antarctica's Environmental Future, Monash University, Clayton, Victoria, Australia.
- Centre to Impact AMR, Monash University, Clayton, Victoria, Australia.
- ARC Research Hub for Carbon Utilisation and Recycling, Monash University, Clayton, Victoria, Australia.
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4
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Stripp ST, Duffus BR, Fourmond V, Léger C, Leimkühler S, Hirota S, Hu Y, Jasniewski A, Ogata H, Ribbe MW. Second and Outer Coordination Sphere Effects in Nitrogenase, Hydrogenase, Formate Dehydrogenase, and CO Dehydrogenase. Chem Rev 2022; 122:11900-11973. [PMID: 35849738 PMCID: PMC9549741 DOI: 10.1021/acs.chemrev.1c00914] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Gases like H2, N2, CO2, and CO are increasingly recognized as critical feedstock in "green" energy conversion and as sources of nitrogen and carbon for the agricultural and chemical sectors. However, the industrial transformation of N2, CO2, and CO and the production of H2 require significant energy input, which renders processes like steam reforming and the Haber-Bosch reaction economically and environmentally unviable. Nature, on the other hand, performs similar tasks efficiently at ambient temperature and pressure, exploiting gas-processing metalloenzymes (GPMs) that bind low-valent metal cofactors based on iron, nickel, molybdenum, tungsten, and sulfur. Such systems are studied to understand the biocatalytic principles of gas conversion including N2 fixation by nitrogenase and H2 production by hydrogenase as well as CO2 and CO conversion by formate dehydrogenase, carbon monoxide dehydrogenase, and nitrogenase. In this review, we emphasize the importance of the cofactor/protein interface, discussing how second and outer coordination sphere effects determine, modulate, and optimize the catalytic activity of GPMs. These may comprise ionic interactions in the second coordination sphere that shape the electron density distribution across the cofactor, hydrogen bonding changes, and allosteric effects. In the outer coordination sphere, proton transfer and electron transfer are discussed, alongside the role of hydrophobic substrate channels and protein structural changes. Combining the information gained from structural biology, enzyme kinetics, and various spectroscopic techniques, we aim toward a comprehensive understanding of catalysis beyond the first coordination sphere.
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Affiliation(s)
- Sven T Stripp
- Freie Universität Berlin, Experimental Molecular Biophysics, Berlin 14195, Germany
| | | | - Vincent Fourmond
- Laboratoire de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, Institut Microbiologie, Bioénergies et Biotechnologie, CNRS, Aix Marseille Université, Marseille 13402, France
| | - Christophe Léger
- Laboratoire de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, Institut Microbiologie, Bioénergies et Biotechnologie, CNRS, Aix Marseille Université, Marseille 13402, France
| | - Silke Leimkühler
- University of Potsdam, Molecular Enzymology, Potsdam 14476, Germany
| | - Shun Hirota
- Nara Institute of Science and Technology, Division of Materials Science, Graduate School of Science and Technology, Nara 630-0192, Japan
| | - Yilin Hu
- Department of Molecular Biology & Biochemistry, University of California, Irvine, California 92697-3900, United States
| | - Andrew Jasniewski
- Department of Molecular Biology & Biochemistry, University of California, Irvine, California 92697-3900, United States
| | - Hideaki Ogata
- Nara Institute of Science and Technology, Division of Materials Science, Graduate School of Science and Technology, Nara 630-0192, Japan.,Hokkaido University, Institute of Low Temperature Science, Sapporo 060-0819, Japan.,Graduate School of Science, University of Hyogo, Hyogo 678-1297, Japan
| | - Markus W Ribbe
- Department of Molecular Biology & Biochemistry, University of California, Irvine, California 92697-3900, United States.,Department of Chemistry, University of California, Irvine, California 92697-2025, United States
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5
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Badiani VM, Cobb SJ, Wagner A, Oliveira AR, Zacarias S, Pereira IAC, Reisner E. Elucidating Film Loss and the Role of Hydrogen Bonding of Adsorbed Redox Enzymes by Electrochemical Quartz Crystal Microbalance Analysis. ACS Catal 2022; 12:1886-1897. [PMID: 35573129 PMCID: PMC9097293 DOI: 10.1021/acscatal.1c04317] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 12/13/2021] [Indexed: 12/17/2022]
Abstract
![]()
The immobilization of redox enzymes
on electrodes enables the efficient
and selective electrocatalysis of useful reactions such as the reversible
interconversion of dihydrogen (H2) to protons (H+) and formate to carbon dioxide (CO2) with hydrogenase
(H2ase) and formate dehydrogenase (FDH), respectively.
However, their immobilization on electrodes to produce electroactive
protein films for direct electron transfer (DET) at the protein–electrode
interface is not well understood, and the reasons for their activity
loss remain vague, limiting their performance often to hour timescales.
Here, we report the immobilization of [NiFeSe]-H2ase and
[W]-FDH from Desulfovibrio vulgaris Hildenborough on a range of charged and neutral self-assembled monolayer
(SAM)-modified gold electrodes with varying hydrogen bond (H-bond)
donor capabilities. The key factors dominating the activity and stability
of the immobilized enzymes are determined using protein film voltammetry
(PFV), chronoamperometry (CA), and electrochemical quartz crystal
microbalance (E-QCM) analysis. Electrostatic and H-bonding interactions
are resolved, with electrostatic interactions responsible for enzyme
orientation while enzyme desorption is strongly limited when H-bonding
is present at the enzyme–electrode interface. Conversely, enzyme
stability is drastically reduced in the absence of H-bonding, and
desorptive enzyme loss is confirmed as the main reason for activity
decay by E-QCM during CA. This study provides insights into the possible
reasons for the reduced activity of immobilized redox enzymes and
the role of film loss, particularly H-bonding, in stabilizing bioelectrode
performance, promoting avenues for future improvements in bioelectrocatalysis.
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Affiliation(s)
- Vivek M. Badiani
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
- Cambridge Graphene Centre, University of Cambridge, Cambridge CB3 0FA, U.K
| | - Samuel J. Cobb
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Andreas Wagner
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Ana Rita Oliveira
- Instituto de Tecnologia Química e Biológica António Xavier (ITQB NOVA), Universidade NOVA de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Sónia Zacarias
- Instituto de Tecnologia Química e Biológica António Xavier (ITQB NOVA), Universidade NOVA de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Inês A. C. Pereira
- Instituto de Tecnologia Química e Biológica António Xavier (ITQB NOVA), Universidade NOVA de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Erwin Reisner
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
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6
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Meneghello M, Léger C, Fourmond V. Electrochemical Studies of CO 2 -Reducing Metalloenzymes. Chemistry 2021; 27:17542-17553. [PMID: 34506631 DOI: 10.1002/chem.202102702] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Indexed: 11/07/2022]
Abstract
Only two enzymes are capable of directly reducing CO2 : CO dehydrogenase, which produces CO at a [NiFe4 S4 ] active site, and formate dehydrogenase, which produces formate at a mononuclear W or Mo active site. Both metalloenzymes are very rapid, energy-efficient and specific in terms of product. They have been connected to electrodes with two different objectives. A series of studies used protein film electrochemistry to learn about different aspects of the mechanism of these enzymes (reactivity with substrates, inhibitors…). Another series focused on taking advantage of the catalytic performance of these enzymes to build biotechnological devices, from CO2 -reducing electrodes to full photochemical devices performing artificial photosynthesis. Here, we review all these works.
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Affiliation(s)
- Marta Meneghello
- CNRS, Aix-Marseille Université, Laboratoire de Bioénergétique et Ingénierie des Protéines, UMR 7281, Institut de Microbiologie de la Méditerranée, and, Institut Microbiologie, Bioénergies et Biotechnologie, 31 chemin J. Aiguier, 13402, Marseille Cedex 20, France
| | - Christophe Léger
- CNRS, Aix-Marseille Université, Laboratoire de Bioénergétique et Ingénierie des Protéines, UMR 7281, Institut de Microbiologie de la Méditerranée, and, Institut Microbiologie, Bioénergies et Biotechnologie, 31 chemin J. Aiguier, 13402, Marseille Cedex 20, France
| | - Vincent Fourmond
- CNRS, Aix-Marseille Université, Laboratoire de Bioénergétique et Ingénierie des Protéines, UMR 7281, Institut de Microbiologie de la Méditerranée, and, Institut Microbiologie, Bioénergies et Biotechnologie, 31 chemin J. Aiguier, 13402, Marseille Cedex 20, France
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7
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Felbek C, Arrigoni F, de Sancho D, Jacq-Bailly A, Best RB, Fourmond V, Bertini L, Léger C. Mechanism of Hydrogen Sulfide-Dependent Inhibition of FeFe Hydrogenase. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04838] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Christina Felbek
- Laboratoire de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, Institut Microbiologie, Bioénergies et Biotechnologie, CNRS, Aix Marseille Université, Marseille Cedex 20 13402, France
| | - Federica Arrigoni
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan 20126, Italy
| | - David de Sancho
- Polimero eta Material Aurreratuak: Fisika, Kimika eta Teknologia, Kimika Fakultatea, Euskal Herriko Unibertsitatea UPV/EHU & Donostia International Physics Center (DIPC), PK 1072, 20080 Donostia-San Sebastián, Spain
| | - Aurore Jacq-Bailly
- Laboratoire de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, Institut Microbiologie, Bioénergies et Biotechnologie, CNRS, Aix Marseille Université, Marseille Cedex 20 13402, France
| | - Robert B. Best
- Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (NIH), Bethesda, Maryland 20892-0520, United States
| | - Vincent Fourmond
- Laboratoire de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, Institut Microbiologie, Bioénergies et Biotechnologie, CNRS, Aix Marseille Université, Marseille Cedex 20 13402, France
| | - Luca Bertini
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan 20126, Italy
| | - Christophe Léger
- Laboratoire de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, Institut Microbiologie, Bioénergies et Biotechnologie, CNRS, Aix Marseille Université, Marseille Cedex 20 13402, France
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8
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Elouarzaki K, Kannan V, Wang Y, Fisher AC, Lee JM. Electrocatalytic dimeric inactivation mechanism by a porphyrinic molecular-type catalyst: integration in a glucose/O 2 fuel cell. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02443k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a chemical inactivation/redox reactivation process (IAP) based on the surface-confined rhodium–porphyrinic catalyst on a multi-walled carbon nanotube surface which presents an excellent and stable electron transfer.
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Affiliation(s)
- Kamal Elouarzaki
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore
- Cambridge CARES
- CREATE Tower
| | - Vishvak Kannan
- Cambridge CARES
- CREATE Tower
- Singapore
- Department of Chemical and Biomolecular Engineering
- National University of Singapore
| | - Yian Wang
- Cambridge CARES
- CREATE Tower
- Singapore
- Department of Chemical Engineering and Biotechnology
- University of Cambridge
| | - Adrian C. Fisher
- Cambridge CARES
- CREATE Tower
- Singapore
- Department of Chemical Engineering and Biotechnology
- University of Cambridge
| | - Jong-Min Lee
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore
- Cambridge CARES
- CREATE Tower
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9
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Corrigan PS, Tirsch JL, Silakov A. Investigation of the Unusual Ability of the [FeFe] Hydrogenase from Clostridium beijerinckii to Access an O 2-Protected State. J Am Chem Soc 2020; 142:12409-12419. [PMID: 32580545 DOI: 10.1021/jacs.0c04964] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[FeFe] hydrogenases are enzymes capable of producing and oxidizing H2 at staggering submillisecond time scales. A major limitation in applying these enzymes for industrial hydrogen production is their irreversible inactivation by oxygen. Recently, an [FeFe] hydrogenase from Clostridium beijerinckii (CbHydA1) was reported to regain its catalytic activity after exposure to oxygen. In this report, we have determined that artificially matured CbHydA1 is indeed oxygen tolerant in the absence of reducing agents and sulfides by means of reaching an O2-protected state (Hinact). We were also able to generate the Hinact state anaerobically via both chemical and electrochemical oxidation. We use a combination of spectroscopy, electrochemistry, and density functional theory (DFT) to uncover intrinsic properties of the active center of CbHydA1, leading to its unprecedented oxygen tolerance. We have observed that reversible, low-potential oxidation of the active center leads to the protection against O2-induced degradation. The transition between the active oxidized state (Hox) and the Hinact state appears to proceed without any detectable intermediates. We found that the Hinact state is stable for more than 40 h in air, highlighting the remarkable resilience of CbHydA1 to oxygen. Using a combination of DFT and FTIR, we also provide a hypothesis for the chemical identity of the Hinact state. These results demonstrate that CbHydA1 has remarkable stability in the presence of oxygen, which will drive future efforts to engineer more robust catalysts for biofuel production.
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Affiliation(s)
- Patrick S Corrigan
- The Pennsylvania State University, 104 Chemistry Building, University Park, Pennsylvania 16802, United States
| | - Jonathan L Tirsch
- The Pennsylvania State University, 104 Chemistry Building, University Park, Pennsylvania 16802, United States
| | - Alexey Silakov
- The Pennsylvania State University, 104 Chemistry Building, University Park, Pennsylvania 16802, United States
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10
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Selvan D, Shi Y, Prasad P, Crane S, Zhang Y, Chakraborty S. The oxygen reactivity of an artificial hydrogenase designed in a reengineered copper storage protein. Dalton Trans 2020; 49:1928-1934. [DOI: 10.1039/c9dt04913d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The O2 reactivity of an artificial biomolecular hydrogenase, the nickel binding protein (NBP) is investigated.
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Affiliation(s)
- Dhanashree Selvan
- Department of Chemistry and Biochemistry
- University of Mississippi
- University
- USA
| | - Yelu Shi
- Department of Chemistry and Chemical Biology
- Stevens Institute of Technology
- USA
| | - Pallavi Prasad
- Department of Chemistry and Biochemistry
- University of Mississippi
- University
- USA
| | - Skyler Crane
- Department of Chemistry and Biochemistry
- University of Mississippi
- University
- USA
| | - Yong Zhang
- Department of Chemistry and Chemical Biology
- Stevens Institute of Technology
- USA
| | - Saumen Chakraborty
- Department of Chemistry and Biochemistry
- University of Mississippi
- University
- USA
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11
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Barrio M, Fourmond V. Redox (In)activations of Metalloenzymes: A Protein Film Voltammetry Approach. ChemElectroChem 2019. [DOI: 10.1002/celc.201901028] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Melisa Barrio
- CNRSAix-Marseille Université, BIP UMR 7281 31 chemin J. Aiguier F-13402 Marseille cedex 20 France
| | - Vincent Fourmond
- CNRSAix-Marseille Université, BIP UMR 7281 31 chemin J. Aiguier F-13402 Marseille cedex 20 France
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12
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Lu Y, Koo J. O 2 sensitivity and H 2 production activity of hydrogenases-A review. Biotechnol Bioeng 2019; 116:3124-3135. [PMID: 31403182 DOI: 10.1002/bit.27136] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 07/23/2019] [Accepted: 08/05/2019] [Indexed: 01/24/2023]
Abstract
Hydrogenases are metalloproteins capable of catalyzing the interconversion between molecular hydrogen and protons and electrons. The iron-sulfur clusters within the enzyme enable rapid relay of electrons which are either consumed or generated at the active site. Their unparalleled catalytic efficiency has attracted attention, especially for potential use in H2 production and/or fuel cell technologies. However, there are limitations to using hydrogenases, especially due to their high O2 sensitivity. The subclass, called [FeFe] hydrogenases, are particularly more vulnerable to O2 but proficient in H2 production. In this review, we provide an overview of mechanistic and protein engineering studies focused on understanding and enhancing O2 tolerance of the enzyme. The emphasis is on ongoing studies that attempt to overcome O2 sensitivity of the enzyme while it catalyzes H2 production in an aerobic environment. We also discuss pioneering attempts to utilize the enzyme in biological H2 production and other industrial processes, as well as our own perspective on future applications.
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Affiliation(s)
- Yuan Lu
- Department of Chemical Engineering, Tsinghua University, Beijing, China
| | - Jamin Koo
- Department of Chemical Engineering, Hongik University, Seoul, Republic of Korea
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13
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Kornienko N, Ly KH, Robinson WE, Heidary N, Zhang JZ, Reisner E. Advancing Techniques for Investigating the Enzyme-Electrode Interface. Acc Chem Res 2019; 52:1439-1448. [PMID: 31042353 PMCID: PMC6533600 DOI: 10.1021/acs.accounts.9b00087] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
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Enzymes are the essential catalytic components of biology and adsorbing
redox-active enzymes on electrode surfaces enables the direct probing
of their function. Through standard electrochemical measurements,
catalytic activity, reversibility and stability, potentials of redox-active
cofactors, and interfacial electron transfer rates can be readily
measured. Mechanistic investigations on the high electrocatalytic
rates and selectivity of enzymes may yield inspiration for the design
of synthetic molecular and heterogeneous electrocatalysts. Electrochemical
investigations of enzymes also aid in our understanding of their activity
within their biological environment and why they evolved in their
present structure and function. However, the conventional array of
electrochemical techniques (e.g., voltammetry and chronoamperometry)
alone offers a limited picture of the enzyme–electrode interface. How many enzymes are loaded onto an electrode? In which orientation(s)
are they bound? What fraction is active, and are single or multilayers
formed? Does this static picture change over time, applied voltage,
or chemical environment? How does charge transfer through various
intraprotein cofactors contribute to the overall performance and catalytic
bias? What is the distribution of individual enzyme activities within
an ensemble of active protein films? These are central questions for
the understanding of the enzyme–electrode interface, and a
multidisciplinary approach is required to deliver insightful answers. Complementing standard electrochemical experiments with an orthogonal
set of techniques has recently allowed to provide a more complete
picture of enzyme–electrode systems. Within this framework,
we first discuss a brief history of achievements and challenges in
enzyme electrochemistry. We subsequently describe how the aforementioned
challenges can be overcome by applying advanced electrochemical techniques,
quartz-crystal microbalance measurements, and spectroscopic, namely,
resonance Raman and infrared, analysis. For example, rotating ring
disk electrochemistry permits the simultaneous determination of reaction
kinetics and quantification of generated products. In addition, recording
changes in frequency and dissipation in a quartz crystal microbalance
allows to shed light into enzyme loading, relative orientation, clustering,
and denaturation at the electrode surface. Resonance Raman spectroscopy
yields information on ligation and redox state of enzyme cofactors,
whereas infrared spectroscopy provides insights into active site states
and the protein secondary and tertiary structure. The development
of these emerging methods for the analysis of the enzyme–electrode
interface is the primary focus of this Account. We also take a critical
look at the remaining gaps in our understanding and challenges lying
ahead toward attaining a complete mechanistic picture of the enzyme–electrode
interface.
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Affiliation(s)
- Nikolay Kornienko
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
- Department of Chemistry, Université de Montréal, Roger-Gaudry Building, Montreal, Quebec H3C 3J7, Canada
| | - Khoa H. Ly
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
- Fakultät für Chemie und Lebensmittelchemie, Technische Universität Dresden, 01062 Dresden, Germany
| | - William E. Robinson
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Nina Heidary
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
- Department of Chemistry, Université de Montréal, Roger-Gaudry Building, Montreal, Quebec H3C 3J7, Canada
| | - Jenny Z. Zhang
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Erwin Reisner
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
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14
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del Barrio M, Guendon C, Kpebe A, Baffert C, Fourmond V, Brugna M, Léger C. Valine-to-Cysteine Mutation Further Increases the Oxygen Tolerance of Escherichia coli NiFe Hydrogenase Hyd-1. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00543] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Melisa del Barrio
- CNRS, Bioénergétique et Ingénierie des Protéines, Aix Marseille University, 13009 Marseille, France
| | - Chloé Guendon
- CNRS, Bioénergétique et Ingénierie des Protéines, Aix Marseille University, 13009 Marseille, France
| | - Arlette Kpebe
- CNRS, Bioénergétique et Ingénierie des Protéines, Aix Marseille University, 13009 Marseille, France
| | - Carole Baffert
- CNRS, Bioénergétique et Ingénierie des Protéines, Aix Marseille University, 13009 Marseille, France
| | - Vincent Fourmond
- CNRS, Bioénergétique et Ingénierie des Protéines, Aix Marseille University, 13009 Marseille, France
| | - Myriam Brugna
- CNRS, Bioénergétique et Ingénierie des Protéines, Aix Marseille University, 13009 Marseille, France
| | - Christophe Léger
- CNRS, Bioénergétique et Ingénierie des Protéines, Aix Marseille University, 13009 Marseille, France
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15
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Flanagan LA, Chidwick HS, Walton J, Moir JWB, Parkin A. Conserved Histidine Adjacent to the Proximal Cluster Tunes the Anaerobic Reductive Activation of Escherichia coli Membrane-Bound [NiFe] Hydrogenase-1. ChemElectroChem 2018; 5:855-860. [PMID: 29696103 PMCID: PMC5900901 DOI: 10.1002/celc.201800047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Indexed: 12/13/2022]
Abstract
[NiFe] hydrogenases are electrocatalysts that oxidize H2 at a rapid rate without the need for precious metals. All membrane-bound [NiFe] hydrogenases (MBH) possess a histidine residue that points to the electron-transfer iron sulfur cluster closest ("proximal") to the [NiFe] H2-binding active site. Replacement of this amino acid with alanine induces O2 sensitivity, and this has been attributed to the role of the histidine in enabling the reversible O2-induced over-oxidation of the [Fe4S3Cys2] proximal cluster possessed by all O2-tolerant MBH. We have created an Escherichia coli Hyd-1 His-to-Ala variant and report O2-free electrochemical measurements at high potential that indicate the histidine-mediated [Fe4S3Cys2] cluster-opening/closing mechanism also underpins anaerobic reactivation. We validate these experiments by comparing them to the impact of an analogous His-to-Ala replacement in Escherichia coli Hyd-2, a [NiFe]-MBH that contains a [Fe4S4] center.
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Affiliation(s)
| | | | - Julia Walton
- Department of ChemistryUniversity of YorkHeslington, York
| | | | - Alison Parkin
- Department of ChemistryUniversity of YorkHeslington, York
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16
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Adamson H, Robinson M, Wright JJ, Flanagan LA, Walton J, Elton D, Gavaghan DJ, Bond AM, Roessler MM, Parkin A. Retuning the Catalytic Bias and Overpotential of a [NiFe]-Hydrogenase via a Single Amino Acid Exchange at the Electron Entry/Exit Site. J Am Chem Soc 2017; 139:10677-10686. [PMID: 28697596 PMCID: PMC5562392 DOI: 10.1021/jacs.7b03611] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The redox chemistry of the electron entry/exit site in Escherichia coli hydrogenase-1 is shown to play a vital role in tuning biocatalysis. Inspired by nature, we generate a HyaA-R193L variant to disrupt a proposed Arg-His cation-π interaction in the secondary coordination sphere of the outermost, "distal", iron-sulfur cluster. This rewires the enzyme, enhancing the relative rate of H2 production and the thermodynamic efficiency of H2 oxidation catalysis. On the basis of Fourier transformed alternating current voltammetry measurements, we relate these changes in catalysis to a shift in the distal [Fe4S4]2+/1+ redox potential, a previously experimentally inaccessible parameter. Thus, metalloenzyme chemistry is shown to be tuned by the second coordination sphere of an electron transfer site distant from the catalytic center.
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Affiliation(s)
- Hope Adamson
- Department of Chemistry, University of York , Heslington, York YO10 5DD, U.K
| | - Martin Robinson
- Department of Computer Science, University of Oxford , Oxford, OX1 3QD, U.K
| | - John J Wright
- School of Biological and Chemical Sciences, Queen Mary University of London , Mile End Road, London, E1 4NS, U.K
| | - Lindsey A Flanagan
- Department of Chemistry, University of York , Heslington, York YO10 5DD, U.K
| | - Julia Walton
- Department of Chemistry, University of York , Heslington, York YO10 5DD, U.K
| | - Darrell Elton
- Department of Engineering, School of Engineering and Mathematical Sciences, La Trobe University , Melbourne, Victoria 3086, Australia
| | - David J Gavaghan
- Department of Computer Science, University of Oxford , Oxford, OX1 3QD, U.K
| | - Alan M Bond
- School of Chemistry, Monash University , Clayton, Victoria 3800, Australia
| | - Maxie M Roessler
- School of Biological and Chemical Sciences, Queen Mary University of London , Mile End Road, London, E1 4NS, U.K
| | - Alison Parkin
- Department of Chemistry, University of York , Heslington, York YO10 5DD, U.K
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17
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Abstract
Hydrogenases are enzymes of great biotechnological relevance because they catalyse the interconversion of H2, water (protons) and electricity using non-precious metal catalytic active sites. Electrochemical studies into the reactivity of NiFe membrane-bound hydrogenases (MBH) have provided a particularly detailed insight into the reactivity and mechanism of this group of enzymes. Significantly, the control centre for enabling O2 tolerance has been revealed as the electron-transfer relay of FeS clusters, rather than the NiFe bimetallic active site. The present review paper will discuss how electrochemistry results have complemented those obtained from structural and spectroscopic studies, to present a complete picture of our current understanding of NiFe MBH.
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18
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Monsalve K, Mazurenko I, Gutierrez-Sanchez C, Ilbert M, Infossi P, Frielingsdorf S, Giudici-Orticoni MT, Lenz O, Lojou E. Impact of Carbon Nanotube Surface Chemistry on Hydrogen Oxidation by Membrane-Bound Oxygen-Tolerant Hydrogenases. ChemElectroChem 2016. [DOI: 10.1002/celc.201600460] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Karen Monsalve
- Aix Marseille Univ, CNRS, BIP, UMR 7281; 31 chemin Joseph Aiguier 13402 Marseille France
| | - Ievgen Mazurenko
- Aix Marseille Univ, CNRS, BIP, UMR 7281; 31 chemin Joseph Aiguier 13402 Marseille France
| | | | - Marianne Ilbert
- Aix Marseille Univ, CNRS, BIP, UMR 7281; 31 chemin Joseph Aiguier 13402 Marseille France
| | - Pascale Infossi
- Aix Marseille Univ, CNRS, BIP, UMR 7281; 31 chemin Joseph Aiguier 13402 Marseille France
| | - Stefan Frielingsdorf
- Institute für Chemie, Sekretariat PC14; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Germany
| | | | - Oliver Lenz
- Institute für Chemie, Sekretariat PC14; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Germany
| | - Elisabeth Lojou
- Aix Marseille Univ, CNRS, BIP, UMR 7281; 31 chemin Joseph Aiguier 13402 Marseille France
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19
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Armstrong FA, Evans RM, Hexter SV, Murphy BJ, Roessler MM, Wulff P. Guiding Principles of Hydrogenase Catalysis Instigated and Clarified by Protein Film Electrochemistry. Acc Chem Res 2016; 49:884-92. [PMID: 27104487 DOI: 10.1021/acs.accounts.6b00027] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Protein film electrochemistry (PFE) is providing cutting-edge insight into the chemical principles underpinning biological hydrogen. Attached to an electrode, many enzymes exhibit "reversible" electrocatalytic behavior, meaning that a catalyzed redox reaction appears reversible or quasi-reversible when viewed by cyclic voltammetry. This efficiency is most relevant for enzymes that are inspiring advances in renewable energy, such as hydrogen-activating and CO2-reducing enzymes. Exploiting the rich repertoire of available instrumental methods, PFE experiments yield both a general snapshot and fine detail, all from tiny samples of enzyme. The dynamic electrochemical investigations blaze new trails and add exquisite detail to the information gained from structural and spectroscopic studies. This Account describes recent investigations of hydrogenases carried out in Oxford, including ideas initiated with PFE and followed through with complementary techniques, all contributing to an eventual complete picture of fast and efficient H2 activation without Pt. By immobilization of an enzyme on an electrode, catalytic electron flow and the chemistry controlling it can be addressed at the touch of a button. The buried nature of the active site means that structures that have been determined by crystallography or spectroscopy are likely to be protected, retained, and fully relevant in a PFE experiment. An electrocatalysis model formulated for the PFE of immobilized enzymes predicts interesting behavior and gives insight into why some hydrogenases are H2 producers and others are H2 oxidizers. Immobilization also allows for easy addition and removal of inhibitors along with precise potential control, one interesting outcome being that formaldehyde forms a reversible complex with reduced [FeFe]-hydrogenases, thereby providing insight into the order of electron and proton transfers. Experiments on O2-tolerant [NiFe]-hydrogenases show that O2 behaves like a reversible inhibitor: it is also a substrate, and implicit in the description of some hydrogenases as "H2/O2 oxidoreductases" is the hypothesis that fast and efficient multielectron transfer is a key to O2 tolerance because it promotes complete reduction of O2 to harmless water. Not only is a novel [4Fe-3S] cluster (able to transfer two electrons consecutively) an important component, but connections to additional electron sources (other Fe-S clusters, an electrode, another quaternary structure unit, or the physiological membrane itself) ensure that H2 oxidation can be sustained in the presence of O2, as demonstrated with enzyme fuel cells able to operate on a H2/air mixture. Manipulating the H-H bond in the active site is the simplest proton-coupled electron-transfer reaction to be catalyzed by an enzyme. Unlike small molecular catalysts or the surfaces of materials, metalloenzymes are far better suited to engineering the all-important outer-coordination shell. Hence, recent successful site-directed mutagenesis of the conserved outer-shell "canopy" residues in a [NiFe]-hydrogenase opens up new opportunities for understanding the mechanism of H2 activation beyond the role of the inner coordination shell.
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Affiliation(s)
- Fraser A. Armstrong
- Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K
| | - Rhiannon M. Evans
- Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K
| | - Suzannah V. Hexter
- Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K
| | - Bonnie J. Murphy
- Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K
| | - Maxie M. Roessler
- Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K
| | - Philip Wulff
- Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K
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20
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So K, Hamamoto R, Takeuchi R, Kitazumi Y, Shirai O, Endo R, Nishihara H, Higuchi Y, Kano K. Bioelectrochemical analysis of thermodynamics of the catalytic cycle and kinetics of the oxidative inactivation of oxygen-tolerant [NiFe]-hydrogenase. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.02.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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21
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Protein Electrochemistry: Questions and Answers. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2016; 158:1-41. [DOI: 10.1007/10_2015_5016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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22
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Radu V, Frielingsdorf S, Lenz O, Jeuken LJC. Reactivation from the Ni–B state in [NiFe] hydrogenase of Ralstonia eutropha is controlled by reduction of the superoxidised proximal cluster. Chem Commun (Camb) 2016; 52:2632-5. [DOI: 10.1039/c5cc10382g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The tolerance towards oxic conditions of O2-tolerant [NiFe] hydrogenases has been attributed to an unusual [4Fe–3S] cluster that lies proximal to the [NiFe] active site.
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Affiliation(s)
- Valentin Radu
- School of Biomedical Sciences
- The Astbury Centre for Structural Molecular Biology
- University of Leeds
- Leeds LS2 9JT
- UK
| | - Stefan Frielingsdorf
- Institut für Chemie
- Sekretariat PC14
- Technische Universität Berlin
- 10623 Berlin
- Germany
| | - Oliver Lenz
- Institut für Chemie
- Sekretariat PC14
- Technische Universität Berlin
- 10623 Berlin
- Germany
| | - Lars J. C. Jeuken
- School of Biomedical Sciences
- The Astbury Centre for Structural Molecular Biology
- University of Leeds
- Leeds LS2 9JT
- UK
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23
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Kwan P, McIntosh CL, Jennings DP, Hopkins RC, Chandrayan SK, Wu CH, Adams MWW, Jones AK. The [NiFe]-Hydrogenase of Pyrococcus furiosus Exhibits a New Type of Oxygen Tolerance. J Am Chem Soc 2015; 137:13556-65. [PMID: 26436715 DOI: 10.1021/jacs.5b07680] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We report the first direct electrochemical characterization of the impact of oxygen on the hydrogen oxidation activity of an oxygen-tolerant, group 3, soluble [NiFe]-hydrogenase: hydrogenase I from Pyrococcus furiosus (PfSHI), which grows optimally near 100 °C. Chronoamperometric experiments were used to probe the sensitivity of PfSHI hydrogen oxidation activity to both brief and prolonged exposure to oxygen. For experiments between 15 and 80 °C, following short (<200 s) exposure to 14 μM O2 under oxidizing conditions, PfSHI always maintains some fraction of its initial hydrogen oxidation activity; i.e., it is oxygen-tolerant. Reactivation experiments show that two inactive states are formed by interaction with oxygen and both can be quickly (<150 s) reactivated. Analogous experiments, in which the interval of oxygen exposure is extended to 900 s, reveal that the response is highly temperature-dependent. At 25 °C, under sustained 1% O2/ 99% H2 exposure, the H2oxidation activity drops nearly to zero. However, at 80 °C, up to 32% of the enzyme's oxidation activity is retained. Reactivation of PfSHI following sustained exposure to oxygen occurs on a much longer time scale (tens of minutes), suggesting that a third inactive species predominates under these conditions. These results stand in contrast to the properties of oxygen-tolerant, group 1 [NiFe]-hydrogenases, which form a single state upon reaction with oxygen, and we propose that this new type of hydrogenase should be referred to as oxygen-resilient. Furthermore, PfSHI, like other group 3 [NiFe]-hydrogenases, does not possess the proximal [4Fe3S] cluster associated with the oxygen tolerance of some group 1 enzymes. Thus, a new mechanism is necessary to explain the observed oxygen tolerance in soluble, group 3 [NiFe]-hydrogenases, and we present a model integrating both electrochemical and spectroscopic results to define the relationships of these inactive states.
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Affiliation(s)
- Patrick Kwan
- Department of Chemistry and Biochemistry, Arizona State University , Tempe, Arizona 85287, United States
| | - Chelsea L McIntosh
- Department of Chemistry and Biochemistry, Arizona State University , Tempe, Arizona 85287, United States
| | - David P Jennings
- Department of Chemistry and Biochemistry, Arizona State University , Tempe, Arizona 85287, United States
| | - R Chris Hopkins
- Department of Biochemistry and Molecular Biology, The University of Georgia , Athens, Georgia 30602, United States
| | - Sanjeev K Chandrayan
- Department of Biochemistry and Molecular Biology, The University of Georgia , Athens, Georgia 30602, United States
| | - Chang-Hao Wu
- Department of Biochemistry and Molecular Biology, The University of Georgia , Athens, Georgia 30602, United States
| | - Michael W W Adams
- Department of Biochemistry and Molecular Biology, The University of Georgia , Athens, Georgia 30602, United States
| | - Anne K Jones
- Department of Chemistry and Biochemistry, Arizona State University , Tempe, Arizona 85287, United States
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24
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Orain C, Saujet L, Gauquelin C, Soucaille P, Meynial-Salles I, Baffert C, Fourmond V, Bottin H, Léger C. Electrochemical Measurements of the Kinetics of Inhibition of Two FeFe Hydrogenases by O2 Demonstrate That the Reaction Is Partly Reversible. J Am Chem Soc 2015; 137:12580-7. [DOI: 10.1021/jacs.5b06934] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Christophe Orain
- Laboratoire de
Bioénergétique et Ingénierie des Protéines,
CNRS/Aix-Marseille Université, 13402 Marseille, France
| | - Laure Saujet
- CEA, Institut
de Biologie et de Technologies de Saclay IBITECS, SB2SM, F-91191 Gif sur Yvette, France
- Institut
de Biologie Intégrative de la Cellule I2BC, UMR 9198, CEA,
CNRS, Université Paris Sud, F-91191 Gif sur
Yvette, France
| | - Charles Gauquelin
- Université
de Toulouse, INSA, UPS, INP, LISBP, INRA:UMR792,135 CNRS:UMR 5504, avenue de Rangueil, 31077 Toulouse, France
| | - Philippe Soucaille
- Université
de Toulouse, INSA, UPS, INP, LISBP, INRA:UMR792,135 CNRS:UMR 5504, avenue de Rangueil, 31077 Toulouse, France
| | - Isabelle Meynial-Salles
- Université
de Toulouse, INSA, UPS, INP, LISBP, INRA:UMR792,135 CNRS:UMR 5504, avenue de Rangueil, 31077 Toulouse, France
| | - Carole Baffert
- Laboratoire de
Bioénergétique et Ingénierie des Protéines,
CNRS/Aix-Marseille Université, 13402 Marseille, France
| | - Vincent Fourmond
- Laboratoire de
Bioénergétique et Ingénierie des Protéines,
CNRS/Aix-Marseille Université, 13402 Marseille, France
| | - Hervé Bottin
- CEA, Institut
de Biologie et de Technologies de Saclay IBITECS, SB2SM, F-91191 Gif sur Yvette, France
- Institut
de Biologie Intégrative de la Cellule I2BC, UMR 9198, CEA,
CNRS, Université Paris Sud, F-91191 Gif sur
Yvette, France
| | - Christophe Léger
- Laboratoire de
Bioénergétique et Ingénierie des Protéines,
CNRS/Aix-Marseille Université, 13402 Marseille, France
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25
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Ceccaldi P, Marques MC, Fourmond V, Pereira IC, Léger C. Oxidative inactivation of NiFeSe hydrogenase. Chem Commun (Camb) 2015; 51:14223-6. [PMID: 26260963 DOI: 10.1039/c5cc05930e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
We propose a resolution to the paradox that spectroscopic studies of NiFeSe hydrogenase have not revealed any major signal attributable to Ni(III) states formed upon reaction with O2, despite the fact that two inactive states are formed upon either aerobic or anaerobic oxidation.
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Affiliation(s)
- Pierre Ceccaldi
- CNRS, Aix-Marseille Univ., BIP UMR 7281, IMM FR 3479, 31 Chemin J. Aiguier, 13402 Marseille Cedex 20, France.
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26
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Ceccaldi P, Rendon J, Léger C, Toci R, Guigliarelli B, Magalon A, Grimaldi S, Fourmond V. Reductive activation of E. coli respiratory nitrate reductase. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2015; 1847:1055-63. [PMID: 26073890 DOI: 10.1016/j.bbabio.2015.06.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 06/01/2015] [Accepted: 06/07/2015] [Indexed: 11/25/2022]
Abstract
Over the past decades, a number of authors have reported the presence of inactive species in as-prepared samples of members of the Mo/W-bisPGD enzyme family. This greatly complicated the spectroscopic studies of these enzymes, since it is impossible to discriminate between active and inactive species on the basis of the spectroscopic signatures alone. Escherichia coli nitrate reductase A (NarGHI) is a member of the Mo/W-bisPGD family that allows anaerobic respiration using nitrate as terminal electron acceptor. Here, using protein film voltammetry on NarGH films, we show that the enzyme is purified in a functionally heterogeneous form that contains between 20 and 40% of inactive species that activate the first time they are reduced. This activation proceeds in two steps: a non-redox reversible reaction followed by an irreversible reduction. By carefully correlating electrochemical and EPR spectroscopic data, we show that neither the two major Mo(V) signals nor those of the two FeS clusters that are the closest to the Mo center are associated with the two inactive species. We also conclusively exclude the possibility that the major "low-pH" and "high-pH" Mo(V) EPR signatures correspond to species in acid-base equilibrium.
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Affiliation(s)
- Pierre Ceccaldi
- Aix-Marseille Université, CNRS, BIP UMR 7281, 31 chemin J. Aiguier, F-13402 Marseille cedex 20, France
| | - Julia Rendon
- Aix-Marseille Université, CNRS, BIP UMR 7281, 31 chemin J. Aiguier, F-13402 Marseille cedex 20, France
| | - Christophe Léger
- Aix-Marseille Université, CNRS, BIP UMR 7281, 31 chemin J. Aiguier, F-13402 Marseille cedex 20, France
| | - René Toci
- Aix-Marseille Université, CNRS, LCB UMR 7283, 31 chemin J. Aiguier, F-13402 Marseille cedex 20, France
| | - Bruno Guigliarelli
- Aix-Marseille Université, CNRS, BIP UMR 7281, 31 chemin J. Aiguier, F-13402 Marseille cedex 20, France
| | - Axel Magalon
- Aix-Marseille Université, CNRS, LCB UMR 7283, 31 chemin J. Aiguier, F-13402 Marseille cedex 20, France
| | - Stéphane Grimaldi
- Aix-Marseille Université, CNRS, BIP UMR 7281, 31 chemin J. Aiguier, F-13402 Marseille cedex 20, France
| | - Vincent Fourmond
- Aix-Marseille Université, CNRS, BIP UMR 7281, 31 chemin J. Aiguier, F-13402 Marseille cedex 20, France.
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Fourmond V, Stapf S, Li H, Buesen D, Birrell J, Rüdiger O, Lubitz W, Schuhmann W, Plumeré N, Léger C. Mechanism of protection of catalysts supported in redox hydrogel films. J Am Chem Soc 2015; 137:5494-505. [PMID: 25835569 DOI: 10.1021/jacs.5b01194] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The use of synthetic inorganic complexes as supported catalysts is a key route in energy production and in industrial synthesis. However, their intrinsic oxygen sensitivity is sometimes an issue. Some of us have recently demonstrated that hydrogenases, the fragile but very efficient biological catalysts of H2 oxidation, can be protected from O2 damage upon integration into a film of a specifically designed redox polymer. Catalytic oxidation of H2 produces electrons which reduce oxygen near the film/solution interface, thus providing a self-activated protection from oxygen [Plumeré et al., Nat Chem. 2014, 6, 822-827]. Here, we rationalize this protection mechanism by examining the time-dependent distribution of species in the hydrogenase/polymer film, using measured or estimated values of all relevant parameters and the numerical and analytical solutions of a realistic reaction-diffusion scheme. Our investigation sets the stage for optimizing the design of hydrogenase-polymer films, and for expanding this strategy to other fragile catalysts.
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Affiliation(s)
- Vincent Fourmond
- †Laboratoire de Bioénergétique et Ingénierie des Protéines, Aix Marseille Université, CNRS, BIP UMR 7281, 13402 Marseille, France
| | | | | | | | - James Birrell
- ∥Max-Planck-Institut für Chemische Energiekonversion, Stiftstr 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Olaf Rüdiger
- ∥Max-Planck-Institut für Chemische Energiekonversion, Stiftstr 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Wolfgang Lubitz
- ∥Max-Planck-Institut für Chemische Energiekonversion, Stiftstr 34-36, 45470 Mülheim an der Ruhr, Germany
| | | | | | - Christophe Léger
- †Laboratoire de Bioénergétique et Ingénierie des Protéines, Aix Marseille Université, CNRS, BIP UMR 7281, 13402 Marseille, France
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28
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So K, Kitazumi Y, Shirai O, Kurita K, Nishihara H, Higuchi Y, Kano K. Kinetic Analysis of Inactivation and Enzyme Reaction of Oxygen-Tolerant [NiFe]-Hydrogenase at Direct Electron-Transfer Bioanode. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2014. [DOI: 10.1246/bcsj.20140223] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Keisei So
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University
| | - Yuki Kitazumi
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University
| | - Osamu Shirai
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST)
| | - Kouhei Kurita
- Department of Bioresource Science, Collage of Agriculture, Ibaraki University
| | - Hirofumi Nishihara
- Department of Bioresource Science, Collage of Agriculture, Ibaraki University
| | - Yoshiki Higuchi
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST)
- Department of Life Science, Graduate School of Life Science, University of Hyogo
| | - Kenji Kano
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST)
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29
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Jacques JG, Burlat B, Arnoux P, Sabaty M, Guigliarelli B, Léger C, Pignol D, Fourmond V. Kinetics of substrate inhibition of periplasmic nitrate reductase. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2014; 1837:1801-9. [DOI: 10.1016/j.bbabio.2014.05.357] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 05/14/2014] [Accepted: 05/22/2014] [Indexed: 11/26/2022]
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30
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Han G, Ferranco A, Feng X, Chen Z, Kraatz H. Synthesis, Characterization of Some Ferrocenoyl Cysteine and Histidine Conjugates, and Their Interactions with Some Metal Ions. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402470] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Guo‐Cheng Han
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin 541004, P. R. China, http://rsc.guet.edu.cn/RSC/public/show.aspx?par2=0014&par=864
| | - Annaleizle Ferranco
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Ontario M1C 1A4, Canada, http://www.utsc.utoronto.ca/~bkraatz/
| | - Xiao‐Zhen Feng
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin 541004, P. R. China, http://rsc.guet.edu.cn/RSC/public/show.aspx?par2=0014&par=864
| | - Zhencheng Chen
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin 541004, P. R. China, http://rsc.guet.edu.cn/RSC/public/show.aspx?par2=0014&par=864
| | - Heinz‐Bernhard Kraatz
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Ontario M1C 1A4, Canada, http://www.utsc.utoronto.ca/~bkraatz/
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31
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A redox hydrogel protects hydrogenase from high-potential deactivation and oxygen damage. Nat Chem 2014; 6:822-7. [PMID: 25143219 DOI: 10.1038/nchem.2022] [Citation(s) in RCA: 143] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 06/30/2014] [Indexed: 11/08/2022]
Abstract
Hydrogenases are nature's efficient catalysts for both the generation of energy via oxidation of molecular hydrogen and the production of hydrogen via the reduction of protons. However, their O2 sensitivity and deactivation at high potential limit their applications in practical devices, such as fuel cells. Here, we show that the integration of an O2-sensitive hydrogenase into a specifically designed viologen-based redox polymer protects the enzyme from O2 damage and high-potential deactivation. Electron transfer between the polymer-bound viologen moieties controls the potential applied to the active site of the hydrogenase and thus insulates the enzyme from excessive oxidative stress. Under catalytic turnover, electrons provided from the hydrogen oxidation reaction induce viologen-catalysed O2 reduction at the polymer surface, thus providing self-activated protection from O2. The advantages of this tandem protection are demonstrated using a single-compartment biofuel cell based on an O2-sensitive hydrogenase and H2/O2 mixed feed under anode-limiting conditions.
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32
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Affiliation(s)
- Wolfgang Lubitz
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Hideaki Ogata
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Olaf Rüdiger
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Edward Reijerse
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470 Mülheim an der Ruhr, Germany
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33
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The oxidative inactivation of FeFe hydrogenase reveals the flexibility of the H-cluster. Nat Chem 2014; 6:336-42. [PMID: 24651202 DOI: 10.1038/nchem.1892] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 02/11/2014] [Indexed: 11/09/2022]
Abstract
Nature is a valuable source of inspiration in the design of catalysts, and various approaches are used to elucidate the mechanism of hydrogenases, the enzymes that oxidize or produce H2. In FeFe hydrogenases, H2 oxidation occurs at the H-cluster, and catalysis involves H2 binding on the vacant coordination site of an iron centre. Here, we show that the reversible oxidative inactivation of this enzyme results from the binding of H2 to coordination positions that are normally blocked by intrinsic CO ligands. This flexibility of the coordination sphere around the reactive iron centre confers on the enzyme the ability to avoid harmful reactions under oxidizing conditions, including exposure to O2. The versatile chemistry of the diiron cluster in the natural system might inspire the design of novel synthetic catalysts for H2 oxidation.
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Fourmond V, Baffert C, Sybirna K, Lautier T, Abou Hamdan A, Dementin S, Soucaille P, Meynial-Salles I, Bottin H, Léger C. Steady-state catalytic wave-shapes for 2-electron reversible electrocatalysts and enzymes. J Am Chem Soc 2013; 135:3926-38. [PMID: 23362993 DOI: 10.1021/ja311607s] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Using direct electrochemistry to learn about the mechanism of electrocatalysts and redox enzymes requires that kinetic models be developed. Here we thoroughly discuss the interpretation of electrochemical signals obtained with adsorbed enzymes and molecular catalysts that can reversibly convert their substrate and product. We derive analytical relations between electrochemical observables (overpotentials for catalysis in each direction, positions, and magnitudes of the features of the catalytic wave) and the characteristics of the catalytic cycle (redox properties of the catalytic intermediates, kinetics of intramolecular and interfacial electron transfer, etc.). We discuss whether or not the position of the wave is determined by the redox potential of a redox relay when intramolecular electron transfer is slow. We demonstrate that there is no simple relation between the reduction potential of the active site and the catalytic bias of the enzyme, defined as the ratio of the oxidative and reductive limiting currents; this explains the recent experimental observation that the catalytic bias of NiFe hydrogenase depends on steps of the catalytic cycle that occur far from the active site [Abou Hamdan et al., J. Am. Chem. Soc. 2012, 134, 8368]. On the experimental side, we examine which models can best describe original data obtained with various NiFe and FeFe hydrogenases, and we illustrate how the presence of an intramolecular electron transfer chain affects the voltammetry by comparing the data obtained with the FeFe hydrogenases from Chlamydomonas reinhardtii and Clostridium acetobutylicum, only one of which has a chain of redox relays. The considerations herein will help the interpretation of electrochemical data previously obtained with various other bidirectional oxidoreductases, and, possibly, synthetic inorganic catalysts.
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Affiliation(s)
- Vincent Fourmond
- CNRS, Aix-Marseille Univ, BIP UMR 7281, IMM FR 3479, 31 chemin J. Aiguier, 13402 Marseille Cedex 20, France
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35
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Evans RM, Parkin A, Roessler MM, Murphy BJ, Adamson H, Lukey MJ, Sargent F, Volbeda A, Fontecilla-Camps JC, Armstrong FA. Principles of sustained enzymatic hydrogen oxidation in the presence of oxygen--the crucial influence of high potential Fe-S clusters in the electron relay of [NiFe]-hydrogenases. J Am Chem Soc 2013; 135:2694-707. [PMID: 23398301 DOI: 10.1021/ja311055d] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
"Hyd-1", produced by Escherichia coli , exemplifies a special class of [NiFe]-hydrogenase that can sustain high catalytic H(2) oxidation activity in the presence of O(2)-an intruder that normally incapacitates the sulfur- and electron-rich active site. The mechanism of "O(2) tolerance" involves a critical role for the Fe-S clusters of the electron relay, which is to ensure the availability-for immediate transfer back to the active site-of all of the electrons required to reduce an attacking O(2) molecule completely to harmless H(2)O. The unique [4Fe-3S] cluster proximal to the active site is crucial because it can rapidly transfer two of the electrons needed. Here we investigate and establish the equally crucial role of the high potential medial [3Fe-4S] cluster, located >20 Å from the active site. A variant, P242C, in which the medial [3Fe-4S] cluster is replaced by a [4Fe-4S] cluster, is unable to sustain steady-state H(2) oxidation activity in 1% O(2). The [3Fe-4S] cluster is essential only for the first stage of complete O(2) reduction, ensuring the supply of all three electrons needed to form the oxidized inactive state "Ni-B" or "Ready" (Ni(III)-OH). Potentiometric titrations show that Ni-B is easily reduced (E(m) ≈ +0.1 V at pH 6.0); this final stage of the O(2)-tolerance mechanism regenerates active enzyme, effectively completing a competitive four-electron oxidase cycle and is fast regardless of alterations at the proximal or medial clusters. As a consequence of all these factors, the enzyme's response to O(2), viewed by its electrocatalytic activity in protein film electrochemistry (PFE) experiments, is merely to exhibit attenuated steady-state H(2) oxidation activity; thus, O(2) behaves like a reversible inhibitor rather than an agent that effectively causes irreversible inactivation. The data consolidate a rich picture of the versatile role of Fe-S clusters in electron relays and suggest that Hyd-1 can function as a proficient hydrogen oxidase.
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36
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Ciaccafava A, Hamon C, Infossi P, Marchi V, Giudici-Orticoni MT, Lojou E. Light-induced reactivation of O2-tolerant membrane-bound [Ni–Fe] hydrogenase from the hyperthermophilic bacterium Aquifex aeolicus under turnover conditions. Phys Chem Chem Phys 2013; 15:16463-7. [DOI: 10.1039/c3cp52596a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Relation between anaerobic inactivation and oxygen tolerance in a large series of NiFe hydrogenase mutants. Proc Natl Acad Sci U S A 2012; 109:19916-21. [PMID: 23169623 DOI: 10.1073/pnas.1212258109] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Nickel-containing hydrogenases, the biological catalysts of oxidation and production, reversibly inactivate under anaerobic, oxidizing conditions. We aim at understanding the mechanism of (in)activation and what determines its kinetics, because there is a correlation between fast reductive reactivation and oxygen tolerance, a property of some hydrogenases that is very desirable from the point of view of biotechnology. Direct electrochemistry is potentially very useful for learning about the redox-dependent conversions between active and inactive forms of hydrogenase, but the voltammetric signals are complex and often misread. Here we describe simple analytical models that we used to characterize and compare 16 mutants, obtained by substituting the position-74 valine of the -sensitive NiFe hydrogenase from Desulfovibrio fructosovorans. We observed that this substitution can accelerate reactivation up to 1,000-fold, depending on the polarity of the position 74 amino acid side chain. In terms of kinetics of anaerobic (in)activation and oxygen tolerance, the valine-to-histidine mutation has the most spectacular effect: The V74H mutant compares favorably with the -tolerant hydrogenase from Aquifex aeolicus, which we use here as a benchmark.
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38
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Elouarzaki K, Le Goff A, Holzinger M, Thery J, Cosnier S. Electrocatalytic Oxidation of Glucose by Rhodium Porphyrin-Functionalized MWCNT Electrodes: Application to a Fully Molecular Catalyst-Based Glucose/O2 Fuel Cell. J Am Chem Soc 2012; 134:14078-85. [DOI: 10.1021/ja304589m] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kamal Elouarzaki
- Département de Chimie
Moléculaire UMR-5250, ICMG FR-2607, CNRS-Université Joseph Fourier, BP-53, 38041 Grenoble, France
| | - Alan Le Goff
- Département de Chimie
Moléculaire UMR-5250, ICMG FR-2607, CNRS-Université Joseph Fourier, BP-53, 38041 Grenoble, France
| | - Michael Holzinger
- Département de Chimie
Moléculaire UMR-5250, ICMG FR-2607, CNRS-Université Joseph Fourier, BP-53, 38041 Grenoble, France
| | - Jessica Thery
- LCI/DTNM/LITEN/CEA, 17 Av. des Martyrs, 38054 Grenoble, France
| | - Serge Cosnier
- Département de Chimie
Moléculaire UMR-5250, ICMG FR-2607, CNRS-Université Joseph Fourier, BP-53, 38041 Grenoble, France
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39
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Lojou E. Hydrogenases as catalysts for fuel cells: Strategies for efficient immobilization at electrode interfaces. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.03.002] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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40
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Lukey MJ, Roessler MM, Parkin A, Evans RM, Davies RA, Lenz O, Friedrich B, Sargent F, Armstrong FA. Oxygen-Tolerant [NiFe]-Hydrogenases: The Individual and Collective Importance of Supernumerary Cysteines at the Proximal Fe-S Cluster. J Am Chem Soc 2011; 133:16881-92. [DOI: 10.1021/ja205393w] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | | | | | - Oliver Lenz
- Department of Microbiology, Humboldt-Universität zu Berlin, Chausseestrasse 117, 10115 Berlin, Germany
| | - Baerbel Friedrich
- Department of Microbiology, Humboldt-Universität zu Berlin, Chausseestrasse 117, 10115 Berlin, Germany
| | - Frank Sargent
- College of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, U.K
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41
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Sezer M, Frielingsdorf S, Millo D, Heidary N, Utesch T, Mroginski MA, Friedrich B, Hildebrandt P, Zebger I, Weidinger IM. Role of the HoxZ Subunit in the Electron Transfer Pathway of the Membrane-Bound [NiFe]-Hydrogenase from Ralstonia eutropha Immobilized on Electrodes. J Phys Chem B 2011; 115:10368-74. [DOI: 10.1021/jp204665r] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Murat Sezer
- Insitut für Chemie, Technische Universität Berlin, Strasse des 17, Juni 135, 10623 Berlin, Germany
| | | | - Diego Millo
- Insitut für Chemie, Technische Universität Berlin, Strasse des 17, Juni 135, 10623 Berlin, Germany
| | - Nina Heidary
- Insitut für Chemie, Technische Universität Berlin, Strasse des 17, Juni 135, 10623 Berlin, Germany
| | - Tillman Utesch
- Insitut für Chemie, Technische Universität Berlin, Strasse des 17, Juni 135, 10623 Berlin, Germany
| | - Maria-Andrea Mroginski
- Insitut für Chemie, Technische Universität Berlin, Strasse des 17, Juni 135, 10623 Berlin, Germany
| | - Bärbel Friedrich
- Humboldt-Universität zu Berlin, Chausseestrasse 117, 10115 Berlin, Germany
| | - Peter Hildebrandt
- Insitut für Chemie, Technische Universität Berlin, Strasse des 17, Juni 135, 10623 Berlin, Germany
| | - Ingo Zebger
- Insitut für Chemie, Technische Universität Berlin, Strasse des 17, Juni 135, 10623 Berlin, Germany
| | - Inez M. Weidinger
- Insitut für Chemie, Technische Universität Berlin, Strasse des 17, Juni 135, 10623 Berlin, Germany
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42
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McIntosh CL, Germer F, Schulz R, Appel J, Jones AK. The [NiFe]-hydrogenase of the cyanobacterium Synechocystis sp. PCC 6803 works bidirectionally with a bias to H2 production. J Am Chem Soc 2011; 133:11308-19. [PMID: 21675712 DOI: 10.1021/ja203376y] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Protein film electrochemistry (PFE) was utilized to characterize the catalytic activity and oxidative inactivation of a bidirectional [NiFe]-hydrogenase (HoxEFUYH) from the cyanobacterium Synechocystis sp. PCC 6803. PFE provides precise control of the redox potential of the adsorbed enzyme so that its activity can be monitored under changing experimental conditions as current. The properties of HoxEFUYH are different from those of both the standard uptake and the "oxygen-tolerant" [NiFe]-hydrogenases. First, HoxEFUYH is biased toward proton reduction as opposed to hydrogen oxidation. Second, despite being expressed under aerobic conditions in vivo, HoxEFUYH is clearly not oxygen-tolerant. Aerobic inactivation of catalytic hydrogen oxidation by HoxEFUYH is total and nearly instantaneous, producing two inactive states. However, unlike the Ni-A and Ni-B inactive states of standard [NiFe]-hydrogenases, both of these states are quickly (<90 s) reactivated by removal of oxygen and exposure to reducing conditions. Third, proton reduction continues at 25-50% of the maximal rate in the presence of 1% oxygen. Whereas most previously characterized [NiFe]-hydrogenases seem to be preferential hydrogen oxidizing catalysts, the cyanobacterial enzyme works effectively in both directions. This unusual catalytic bias as well as the ability to be quickly reactivated may be essential to fulfilling the physiological role in cyanobacteria, organisms expected to experience swings in cellular reduction potential as they switch between aerobic conditions in the light and dark anaerobic conditions. Our results suggest that the uptake [NiFe]-hydrogenases alone are not representative of the catalytic diversity of [NiFe]-hydrogenases, and the bidirectional heteromultimeric enzymes may serve as valuable models to understand the diverse mechanisms of tuning the reactivity of the hydrogen activating site.
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Affiliation(s)
- Chelsea L McIntosh
- Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, USA
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43
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Gutiérrez-Sánchez C, Olea D, Marques M, Fernández VM, Pereira IAC, Vélez M, De Lacey AL. Oriented immobilization of a membrane-bound hydrogenase onto an electrode for direct electron transfer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:6449-6457. [PMID: 21491850 DOI: 10.1021/la200141t] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The interaction of redox enzymes with electrodes is of great interest for studying the catalytic mechanisms of redox enzymes and for bioelectronic applications. Efficient electron transport between the biocatalysts and the electrodes has achieved more success with soluble enzymes than with membrane enzymes because of the higher structural complexity and instability of the latter proteins. In this work, we report a strategy for immobilizing a membrane-bound enzyme onto gold electrodes with a controlled orientation in its fully active conformation. The immobilized redox enzyme is the Ni-Fe-Se hydrogenase from Desulfovibrio vulgaris Hildenborough, which catalyzes H(2)-oxidation reversibly and is associated with the cytoplasmic membrane by a lipidic tail. Gold surfaces modified with this enzyme and phospholipids have been studied by atomic force microscopy (AFM) and electrochemical methods. The combined study indicates that by a two-step immobilization procedure the hydrogenase can be inserted via its lipidic tail onto a phospholipidic bilayer formed over the gold surface, allowing only mediated electron transfer between the enzyme and electrode. However, a one-step immobilization procedure favors the formation of a hydrogenase monolayer over the gold surface with its lipidic tail inserted into a phospholipid bilayer formed on top of the hydrogenase molecules. This latter method has allowed for the first time efficient electron transfer between a membrane-bound enzyme in its native conformation and an electrode.
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44
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Millo D, Hildebrandt P, Pandelia ME, Lubitz W, Zebger I. SEIRA spectroscopy of the electrochemical activation of an immobilized [NiFe] hydrogenase under turnover and non-turnover conditions. Angew Chem Int Ed Engl 2011; 50:2632-4. [PMID: 21370354 DOI: 10.1002/anie.201006646] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2010] [Indexed: 11/07/2022]
Affiliation(s)
- Diego Millo
- Institut für Chemie, Sekr. PC14, Technische Universität Berlin, Strasse des 17. Juni 135, 10623 Berlin, Germany
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45
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Millo D, Hildebrandt P, Pandelia ME, Lubitz W, Zebger I. SEIRA-spektroskopische Untersuchung der elektrochemischen Aktivierung einer immobilisierten [NiFe]-Hydrogenase unter Turnover- und Non-Turnover-Bedingungen. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201006646] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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46
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Lauterbach L, Liu J, Horch M, Hummel P, Schwarze A, Haumann M, Vincent KA, Lenz O, Zebger I. The Hydrogenase Subcomplex of the NAD+-Reducing [NiFe] Hydrogenase from Ralstonia eutropha - Insights into Catalysis and Redox Interconversions. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201001053] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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47
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Lautier T, Ezanno P, Baffert C, Fourmond V, Cournac L, Fontecilla-Camps JC, Soucaille P, Bertrand P, Meynial-Salles I, Léger C. The quest for a functional substrate access tunnel in FeFe hydrogenase. Faraday Discuss 2011; 148:385-407; discussion 421-41. [DOI: 10.1039/c004099c] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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Liebgott PP, de Lacey AL, Burlat B, Cournac L, Richaud P, Brugna M, Fernandez VM, Guigliarelli B, Rousset M, Léger C, Dementin S. Original Design of an Oxygen-Tolerant [NiFe] Hydrogenase: Major Effect of a Valine-to-Cysteine Mutation near the Active Site. J Am Chem Soc 2010; 133:986-97. [PMID: 21175174 DOI: 10.1021/ja108787s] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pierre-Pol Liebgott
- CNRS, Laboratoire de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, 31 chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | | | - Bénédicte Burlat
- CNRS, Laboratoire de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, 31 chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
- Aix-Marseille Université, 3 place Victor-Hugo, 13331 Marseille, France
| | - Laurent Cournac
- CEA, DSV, IBEB, Laboratoire de Bioénergétique et Biotechnologie des Bactéries et Microalgues, 13108 Saint-Paul-lez-Durance, France
- Aix-Marseille Université, 3 place Victor-Hugo, 13331 Marseille, France
- CNRS, UMR, Biologie Végétale et Microbiologie Environnementales, 13108 Saint Paul Lez Durance, France
| | - Pierre Richaud
- CEA, DSV, IBEB, Laboratoire de Bioénergétique et Biotechnologie des Bactéries et Microalgues, 13108 Saint-Paul-lez-Durance, France
- Aix-Marseille Université, 3 place Victor-Hugo, 13331 Marseille, France
- CNRS, UMR, Biologie Végétale et Microbiologie Environnementales, 13108 Saint Paul Lez Durance, France
| | - Myriam Brugna
- CNRS, Laboratoire de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, 31 chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
- Aix-Marseille Université, 3 place Victor-Hugo, 13331 Marseille, France
| | | | - Bruno Guigliarelli
- CNRS, Laboratoire de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, 31 chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
- Aix-Marseille Université, 3 place Victor-Hugo, 13331 Marseille, France
| | - Marc Rousset
- CNRS, Laboratoire de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, 31 chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | - Christophe Léger
- CNRS, Laboratoire de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, 31 chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | - Sébastien Dementin
- CNRS, Laboratoire de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, 31 chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
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Pandelia ME, Fourmond V, Tron-Infossi P, Lojou E, Bertrand P, Léger C, Giudici-Orticoni MT, Lubitz W. Membrane-bound hydrogenase I from the hyperthermophilic bacterium Aquifex aeolicus: enzyme activation, redox intermediates and oxygen tolerance. J Am Chem Soc 2010; 132:6991-7004. [PMID: 20441192 DOI: 10.1021/ja910838d] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The membrane-bound hydrogenase (Hase I) of the hyperthermophilic bacterium Aquifex aeolicus belongs to an intriguing class of redox enzymes that show enhanced thermostability and oxygen tolerance. Protein film electrochemistry is employed here to portray the interaction of Hase I with molecular oxygen and obtain an overall picture of the catalytic activity. Fourier transform infrared (FTIR) spectroscopy integrated with in situ electrochemistry is used to identify structural details of the [NiFe] site and the intermediate states involved in its redox chemistry. We found that the active site coordination is similar to that of standard hydrogenases, with a conserved Fe(CN)(2)CO moiety. However, only four catalytic intermediates could be detected; these correspond structurally to the Ni-B, Ni-SI(a), Ni-C, and Ni-R states of standard hydrogenases. The Ni-SI/Ni-C and Ni-C/Ni-R midpoint potentials are approximately 100 mV more positive than those observed in mesophilic hydrogenases, which may be the reason that A. aeolicus Hase I is more suitable as a catalyst for H(2) oxidation than production. Protein film electrochemistry shows that oxygen inhibits the enzyme by reacting at the active site to form a single species (Ni-B); the same inactive state is obtained under oxidizing, anaerobic conditions. The mechanism of anaerobic inactivation and reactivation in A. aeolicus Hase I is similar to that in standard hydrogenases. However, the reactivation of the former is more than 2 orders of magnitude faster despite the fact that reduction of Ni-B is not thermodynamically more favorable. A scheme for the enzymatic mechanism of A. aeolicus Hase I is presented, and the results are discussed in relation to the proposed models of oxygen tolerance.
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Affiliation(s)
- Maria-Eirini Pandelia
- Max-Planck-Institut für Bioanorganische Chemie, Stiftstrasse 34-36, D45470, Mülheim a.d. Ruhr, Germany
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