1
|
Zhang L, Morello G, Carr SB, Armstrong FA. Aerobic Photocatalytic H2 Production by a [NiFe] Hydrogenase Engineered to Place a Silver Nanocluster in the Electron Relay. J Am Chem Soc 2020; 142:12699-12707. [DOI: 10.1021/jacs.0c04302] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Liyun Zhang
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, Oxfordshire United Kingdom
| | - Giorgio Morello
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, Oxfordshire United Kingdom
| | - Stephen B. Carr
- Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Didcot OX11 0QX, United Kingdom
| | - Fraser A. Armstrong
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, Oxfordshire United Kingdom
| |
Collapse
|
2
|
Abstract
Hydrogenase-1 (Hyd-1) from Escherichia coli is a membrane-bound enzyme that catalyses the reversible oxidation of molecular H2 The active site contains one Fe and one Ni atom and several conserved amino acids including an arginine (Arg(509)), which interacts with two conserved aspartate residues (Asp(118) and Asp(574)) forming an outer shell canopy over the metals. There is also a highly conserved glutamate (Glu(28)) positioned on the opposite side of the active site to the canopy. The mechanism of hydrogen activation has been dissected by site-directed mutagenesis to identify the catalytic base responsible for splitting molecular hydrogen and possible proton transfer pathways to/from the active site. Previous reported attempts to mutate residues in the canopy were unsuccessful, leading to an assumption of a purely structural role. Recent discoveries, however, suggest a catalytic requirement, for example replacing the arginine with lysine (R509K) leaves the structure virtually unchanged, but catalytic activity falls by more than 100-fold. Variants containing amino acid substitutions at either or both, aspartates retain significant activity. We now propose a new mechanism: heterolytic H2 cleavage is via a mechanism akin to that of a frustrated Lewis pair (FLP), where H2 is polarized by simultaneous binding to the metal(s) (the acid) and a nitrogen from Arg(509) (the base).
Collapse
|
3
|
Liu YC, Chu KT, Huang YL, Hsu CH, Lee GH, Tseng MC, Chiang MH. Protonation/Reduction of Carbonyl-Rich Diiron Complexes and the Direct Observation of Triprotonated Species: Insights into the Electrocatalytic Mechanism of Hydrogen Formation. ACS Catal 2016. [DOI: 10.1021/acscatal.5b02646] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yu-Chiao Liu
- Institute
of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan
| | - Kai-Ti Chu
- Institute
of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan
- Molecular
Science and Technology Program, TIGP, Institute of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan
- Department
of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Yi-Lan Huang
- Institute
of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan
| | - Cheng-Huey Hsu
- Institute
of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan
| | - Gene-Hsiang Lee
- Instrumentation
Center, National Taiwan University, Taipei 106, Taiwan
| | - Mei-Chun Tseng
- Institute
of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan
| | - Ming-Hsi Chiang
- Institute
of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan
- Molecular
Science and Technology Program, TIGP, Institute of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan
| |
Collapse
|
4
|
Mechanism of hydrogen activation by [NiFe] hydrogenases. Nat Chem Biol 2015; 12:46-50. [DOI: 10.1038/nchembio.1976] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Accepted: 10/26/2015] [Indexed: 11/08/2022]
|
5
|
Wang H, Yoda Y, Ogata H, Tanaka Y, Lubitz W. A strenuous experimental journey searching for spectroscopic evidence of a bridging nickel-iron-hydride in [NiFe] hydrogenase. JOURNAL OF SYNCHROTRON RADIATION 2015; 22:1334-44. [PMID: 26524296 PMCID: PMC4629863 DOI: 10.1107/s1600577515017816] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 09/23/2015] [Indexed: 05/24/2023]
Abstract
Direct spectroscopic evidence for a hydride bridge in the Ni-R form of [NiFe] hydrogenase has been obtained using iron-specific nuclear resonance vibrational spectroscopy (NRVS). The Ni-H-Fe wag mode at 675 cm(-1) is the first spectroscopic evidence for a bridging hydride in Ni-R as well as the first iron-hydride-related NRVS feature observed for a biological system. Although density function theory (DFT) calculation assisted the determination of the Ni-R structure, it did not predict the Ni-H-Fe wag mode at ∼ 675 cm(-1) before NRVS. Instead, the observed Ni-H-Fe mode provided a critical reference for the DFT calculations. While the overall science about Ni-R is presented and discussed elsewhere, this article focuses on the long and strenuous experimental journey to search for and experimentally identify the Ni-H-Fe wag mode in a Ni-R sample. As a methodology, the results presented here will go beyond Ni-R and hydrogenase research and will also be of interest to other scientists who use synchrotron radiation for measuring dilute samples or weak spectroscopic features.
Collapse
Affiliation(s)
- Hongxin Wang
- Department of Chemistry, University of California, 1 Cyclotron Road, Davis, CA 95616, USA
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Yoshitaka Yoda
- Research and Utilization Division, SPring-8/JASRI, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Hideaki Ogata
- Max Planck Institute for Chemical Energy Conversion, D-45470 Mülheim an der Ruhr, Germany
| | - Yoshihito Tanaka
- Research and Utilization Division, SPring-8/JASRI, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
- Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Wolfgang Lubitz
- Max Planck Institute for Chemical Energy Conversion, D-45470 Mülheim an der Ruhr, Germany
| |
Collapse
|
6
|
Hydride bridge in [NiFe]-hydrogenase observed by nuclear resonance vibrational spectroscopy. Nat Commun 2015; 6:7890. [PMID: 26259066 PMCID: PMC4531378 DOI: 10.1038/ncomms8890] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 06/18/2015] [Indexed: 11/28/2022] Open
Abstract
The metabolism of many anaerobes relies on [NiFe]-hydrogenases, whose characterization when bound to substrates has proven non-trivial. Presented here is direct evidence for a hydride bridge in the active site of the 57Fe-labelled fully reduced Ni-R form of Desulfovibrio vulgaris Miyazaki F [NiFe]-hydrogenase. A unique ‘wagging' mode involving H− motion perpendicular to the Ni(μ-H)57Fe plane was studied using 57Fe-specific nuclear resonance vibrational spectroscopy and density functional theory (DFT) calculations. On Ni(μ-D)57Fe deuteride substitution, this wagging causes a characteristic perturbation of Fe–CO/CN bands. Spectra have been interpreted by comparison with Ni(μ-H/D)57Fe enzyme mimics [(dppe)Ni(μ-pdt)(μ-H/D)57Fe(CO)3]+ and DFT calculations, which collectively indicate a low-spin Ni(II)(μ-H)Fe(II) core for Ni-R, with H− binding Ni more tightly than Fe. The present methodology is also relevant to characterizing Fe–H moieties in other important natural and synthetic catalysts. Understanding the catalytic mechanism of redox-active hydrogenases is a key to efficient hydrogen production and consumption. Here, the authors use nuclear resonance vibrational spectroscopy to study [NiFe]-hydrogenase, and observe a bridging hydride structure in an EPR silent intermediate.
Collapse
|
7
|
Abstract
Under anaerobic conditions, Escherichia coli can carry out a mixed-acid fermentation that ultimately produces molecular hydrogen. The enzyme directly responsible for hydrogen production is the membrane-bound formate hydrogenlyase (FHL) complex, which links formate oxidation to proton reduction and has evolutionary links to Complex I, the NADH:quinone oxidoreductase. Although the genetics, maturation, and some biochemistry of FHL are understood, the protein complex has never been isolated in an intact form to allow biochemical analysis. In this work, genetic tools are reported that allow the facile isolation of FHL in a single chromatographic step. The core complex is shown to comprise HycE (a [NiFe] hydrogenase component termed Hyd-3), FdhF (the molybdenum-dependent formate dehydrogenase-H), and three iron-sulfur proteins: HycB, HycF, and HycG. A proportion of this core complex remains associated with HycC and HycD, which are polytopic integral membrane proteins believed to anchor the core complex to the cytoplasmic side of the membrane. As isolated, the FHL complex retains formate hydrogenlyase activity in vitro. Protein film electrochemistry experiments on Hyd-3 demonstrate that it has a unique ability among [NiFe] hydrogenases to catalyze production of H2 even at high partial pressures of H2. Understanding and harnessing the activity of the FHL complex is critical to advancing future biohydrogen research efforts.
Collapse
|
8
|
Adamska-Venkatesh A, Krawietz D, Siebel J, Weber K, Happe T, Reijerse E, Lubitz W. New Redox States Observed in [FeFe] Hydrogenases Reveal Redox Coupling Within the H-Cluster. J Am Chem Soc 2014; 136:11339-46. [DOI: 10.1021/ja503390c] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
| | - Danuta Krawietz
- Fakultät
für Biologie und Biotechnologie, Lehrstuhl für Biochemie
der Pflanzen, AG Photobiotechnologie, Ruhr Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Judith Siebel
- Max-Planck-Institut
für Chemische Energiekonversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Katharina Weber
- Max-Planck-Institut
für Chemische Energiekonversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Thomas Happe
- Fakultät
für Biologie und Biotechnologie, Lehrstuhl für Biochemie
der Pflanzen, AG Photobiotechnologie, Ruhr Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Edward Reijerse
- Max-Planck-Institut
für Chemische Energiekonversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Wolfgang Lubitz
- Max-Planck-Institut
für Chemische Energiekonversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
| |
Collapse
|
9
|
Lambertz C, Chernev P, Klingan K, Leidel N, Sigfridsson KGV, Happe T, Haumann M. Electronic and molecular structures of the active-site H-cluster in [FeFe]-hydrogenase determined by site-selective X-ray spectroscopy and quantum chemical calculations. Chem Sci 2014. [DOI: 10.1039/c3sc52703d] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Site-selective X-ray spectroscopy discriminated the cubane and diiron units in the H-cluster of [FeFe]-hydrogenase revealing its electronic and structural configurations.
Collapse
Affiliation(s)
- Camilla Lambertz
- Institute for Biochemistry of Plants
- Department of Photobiotechnology
- Ruhr-University Bochum
- 44780 Bochum, Germany
| | - Petko Chernev
- Institute for Experimental Physics
- Freie Universität Berlin
- FB Physik
- 14195 Berlin, Germany
| | - Katharina Klingan
- Institute for Experimental Physics
- Freie Universität Berlin
- FB Physik
- 14195 Berlin, Germany
| | - Nils Leidel
- Institute for Experimental Physics
- Freie Universität Berlin
- FB Physik
- 14195 Berlin, Germany
| | | | - Thomas Happe
- Institute for Biochemistry of Plants
- Department of Photobiotechnology
- Ruhr-University Bochum
- 44780 Bochum, Germany
| | - Michael Haumann
- Institute for Experimental Physics
- Freie Universität Berlin
- FB Physik
- 14195 Berlin, Germany
| |
Collapse
|
10
|
Jugder BE, Welch J, Aguey-Zinsou KF, Marquis CP. Fundamentals and electrochemical applications of [Ni–Fe]-uptake hydrogenases. RSC Adv 2013. [DOI: 10.1039/c3ra22668a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
|
11
|
A synthetic system links FeFe-hydrogenases to essential E. coli sulfur metabolism. J Biol Eng 2011; 5:7. [PMID: 21615937 PMCID: PMC3130634 DOI: 10.1186/1754-1611-5-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2011] [Accepted: 05/26/2011] [Indexed: 01/11/2023] Open
Abstract
Background FeFe-hydrogenases are the most active class of H2-producing enzymes known in nature and may have important applications in clean H2 energy production. Many potential uses are currently complicated by a crucial weakness: the active sites of all known FeFe-hydrogenases are irreversibly inactivated by O2. Results We have developed a synthetic metabolic pathway in E. coli that links FeFe-hydrogenase activity to the production of the essential amino acid cysteine. Our design includes a complementary host strain whose endogenous redox pool is insulated from the synthetic metabolic pathway. Host viability on a selective medium requires hydrogenase expression, and moderate O2 levels eliminate growth. This pathway forms the basis for a genetic selection for O2 tolerance. Genetically selected hydrogenases did not show improved stability in O2 and in many cases had lost H2 production activity. The isolated mutations cluster significantly on charged surface residues, suggesting the evolution of binding surfaces that may accelerate hydrogenase electron transfer. Conclusions Rational design can optimize a fully heterologous three-component pathway to provide an essential metabolic flux while remaining insulated from the endogenous redox pool. We have developed a number of convenient in vivo assays to aid in the engineering of synthetic H2 metabolism. Our results also indicate a H2-independent redox activity in three different FeFe-hydrogenases, with implications for the future directed evolution of H2-activating catalysts.
Collapse
|
12
|
Gates AJ, Kemp GL, To CY, Mann J, Marritt SJ, Mayes AG, Richardson DJ, Butt JN. The relationship between redox enzyme activity and electrochemical potential—cellular and mechanistic implications from protein film electrochemistry. Phys Chem Chem Phys 2011; 13:7720-31. [DOI: 10.1039/c0cp02887h] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
13
|
Healy AJ, Reeve HA, Vincent KA. Development of an infrared spectroscopic approach for studying metalloenzyme active site chemistry under direct electrochemical control. Faraday Discuss 2011; 148:345-57; discussion 421-41. [DOI: 10.1039/c004274a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
14
|
Ciaccafava A, Infossi P, Giudici-Orticoni MT, Lojou E. Stabilization role of a phenothiazine derivative on the electrocatalytic oxidation of hydrogen via Aquifex aeolicus hydrogenase at graphite membrane electrodes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:18534-18541. [PMID: 21043442 DOI: 10.1021/la103714n] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The [NiFe] membrane-bound hydrogenase from the microaerophilic, hyperthermophilic Aquifex aeolicus bacterium (Aa Hase) presents oxygen, carbon monoxide, and temperature resistances. Since it oxidizes hydrogen with high turnover, this enzyme is thus of particular interest for biotechnological applications, such as biofuel cells. Efficient immobilization of the enzyme onto electrodes is however a mandatory step. To gain further insight into the parameters governing the interfacial electron process, cyclic voltammetry was performed combining the use of a phenothiazine dye with a membrane electrode design where the enzyme is entrapped in a thin layer. In the absence of the phenothiazine dye, direct electron transfer (DET) for H(2) oxidation is observed due to Aa Hase adsorbed onto the PG electrode. An unexpected loss of the catalytic current with time is however observed. The effect of toluidine blue O (TBO) on the catalytic process is first studied with TBO in solution. In addition to the expected mediated electron transfer process (MET), TBO is demonstrated to reconnect directly some Aa Hase molecules possibly released from the electrode but still entrapped in the thin layer. On adsorbed TBO the two same processes occur demonstrating the ability of the TBO film to connect Aa Hase via a DET process. Loss of activity is however observed due to the poor stability of adsorbed TBO at high temperatures. Aa Hase immobilization is then studied on electropolymerized TBO (pTBO). The effect of film thickness, temperature, presence of inhibitors and pH is evaluated. Given a film thickness less than 20 nm, H(2) oxidation proceeds via a mixed DET/MET process through the pTBO film. A high and very stable H(2) oxidation activity is reached, showing the potential applicability of the bioelectrode for biotechnologies. Finally, the multifunctional roles of TBO-based matrix are underlined, including redox mediator, Aa Hase anchor, but also buffering and ROS scavenger capabilities to drive pH local changes and avoid oxidative damage.
Collapse
Affiliation(s)
- Alexandre Ciaccafava
- Unité de Bioénergétique et Ingénierie des Protéines, UPR 9036, Institut de Microbiologie de la Méditerranée-CNRS, 31 Chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | | | | | | |
Collapse
|
15
|
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.
Collapse
Affiliation(s)
- Maria-Eirini Pandelia
- Max-Planck-Institut für Bioanorganische Chemie, Stiftstrasse 34-36, D45470, Mülheim a.d. Ruhr, Germany
| | | | | | | | | | | | | | | |
Collapse
|
16
|
Lenz O, Ludwig M, Schubert T, Bürstel I, Ganskow S, Goris T, Schwarze A, Friedrich B. H2 conversion in the presence of O2 as performed by the membrane-bound [NiFe]-hydrogenase of Ralstonia eutropha. Chemphyschem 2010; 11:1107-19. [PMID: 20186906 DOI: 10.1002/cphc.200901002] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
[NiFe]-hydrogenases catalyze the oxidation of H(2) to protons and electrons. This reversible reaction is based on a complex interplay of metal cofactors including the Ni-Fe active site and several [Fe-S] clusters. H(2) catalysis of most [NiFe]-hydrogenases is sensitive to dioxygen. However, some bacteria contain hydrogenases that activate H(2) even in the presence of O(2). There is now compelling evidence that O(2) affects hydrogenase on three levels: 1) H(2) catalysis, 2) hydrogenase maturation, and 3) H(2)-mediated signal transduction. Herein, we summarize the genetic, biochemical, electrochemical, and spectroscopic properties related to the O(2) tolerance of hydrogenases resident in the facultative chemolithoautotroph Ralstonia eutropha H16. A focus is given to the membrane-bound [NiFe]-hydogenase, which currently represents the best-characterized member of O(2)-tolerant hydrogenases.
Collapse
Affiliation(s)
- Oliver Lenz
- Department of Microbiology, Humboldt-Universität zu Berlin, Chausseestrasse 117, 10115 Berlin, Germany.
| | | | | | | | | | | | | | | |
Collapse
|
17
|
|
18
|
Lee HS, Vermaas WF, Rittmann BE. Biological hydrogen production: prospects and challenges. Trends Biotechnol 2010; 28:262-71. [DOI: 10.1016/j.tibtech.2010.01.007] [Citation(s) in RCA: 245] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2009] [Revised: 01/11/2010] [Accepted: 01/28/2010] [Indexed: 10/19/2022]
|
19
|
Fourmond V, Burlat B, Dementin S, Sabaty M, Arnoux P, Étienne É, Guigliarelli B, Bertrand P, Pignol D, Léger C. Dependence of Catalytic Activity on Driving Force in Solution Assays and Protein Film Voltammetry: Insights from the Comparison of Nitrate Reductase Mutants. Biochemistry 2010; 49:2424-32. [DOI: 10.1021/bi902140e] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vincent Fourmond
- Centre National de la Recherche Scientifique, UPR 9036, Unité de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, and Aix-Marseille Université, 31 chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | - Bénédicte Burlat
- Centre National de la Recherche Scientifique, UPR 9036, Unité de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, and Aix-Marseille Université, 31 chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | - Sébastien Dementin
- Centre National de la Recherche Scientifique, UPR 9036, Unité de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, and Aix-Marseille Université, 31 chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | - Monique Sabaty
- Laboratoire de Bioénergétique Cellulaire, Commissariat à l’Energie Atomique, DSV, IBEB, 13108 Saint-Paul-lez-Durance, France, and Centre National de la Recherche Scientifique, UMR 6191, Biologie Végétale et Microbiologie Environnementale, and Aix-Marseille Université, 13108 Saint-Paul-lez-Durance, France
| | - Pascal Arnoux
- Laboratoire de Bioénergétique Cellulaire, Commissariat à l’Energie Atomique, DSV, IBEB, 13108 Saint-Paul-lez-Durance, France, and Centre National de la Recherche Scientifique, UMR 6191, Biologie Végétale et Microbiologie Environnementale, and Aix-Marseille Université, 13108 Saint-Paul-lez-Durance, France
| | - Émilien Étienne
- Centre National de la Recherche Scientifique, UPR 9036, Unité de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, and Aix-Marseille Université, 31 chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | - Bruno Guigliarelli
- Centre National de la Recherche Scientifique, UPR 9036, Unité de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, and Aix-Marseille Université, 31 chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | - Patrick Bertrand
- Centre National de la Recherche Scientifique, UPR 9036, Unité de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, and Aix-Marseille Université, 31 chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | - David Pignol
- Laboratoire de Bioénergétique Cellulaire, Commissariat à l’Energie Atomique, DSV, IBEB, 13108 Saint-Paul-lez-Durance, France, and Centre National de la Recherche Scientifique, UMR 6191, Biologie Végétale et Microbiologie Environnementale, and Aix-Marseille Université, 13108 Saint-Paul-lez-Durance, France
| | - Christophe Léger
- Centre National de la Recherche Scientifique, UPR 9036, Unité de Bioénergétique et Ingénierie des Protéines, Institut de Microbiologie de la Méditerranée, and Aix-Marseille Université, 31 chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| |
Collapse
|