1
|
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.
Collapse
Affiliation(s)
- Yuan Lu
- Department of Chemical Engineering, Tsinghua University, Beijing, China
| | - Jamin Koo
- Department of Chemical Engineering, Hongik University, Seoul, Republic of Korea
| |
Collapse
|
2
|
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.
Collapse
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
| |
Collapse
|
3
|
Siebert E, Rippers Y, Frielingsdorf S, Fritsch J, Schmidt A, Kalms J, Katz S, Lenz O, Scheerer P, Paasche L, Pelmenschikov V, Kuhlmann U, Mroginski MA, Zebger I, Hildebrandt P. Resonance Raman Spectroscopic Analysis of the [NiFe] Active Site and the Proximal [4Fe-3S] Cluster of an O2-Tolerant Membrane-Bound Hydrogenase in the Crystalline State. J Phys Chem B 2015. [DOI: 10.1021/acs.jpcb.5b04119] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Elisabeth Siebert
- Technische
Universität Berlin, Institut für Chemie, Sekr. PC14, Straße
des 17. Juni 135, D-10623 Berlin, Germany
| | - Yvonne Rippers
- Technische
Universität Berlin, Institut für Chemie, Sekr. PC14, Straße
des 17. Juni 135, D-10623 Berlin, Germany
| | - Stefan Frielingsdorf
- Technische
Universität Berlin, Institut für Chemie, Sekr. PC14, Straße
des 17. Juni 135, D-10623 Berlin, Germany
| | - Johannes Fritsch
- Technische
Universität Berlin, Institut für Chemie, Sekr. PC14, Straße
des 17. Juni 135, D-10623 Berlin, Germany
| | - Andrea Schmidt
- Charité − Universitätsmedizin Berlin, Institut für Medizinische Physik und Biophysik (CC2), Group
Protein X-ray Crystallography and Signal Transduction, Charitéplatz 1, D-10117 Berlin, Germany
| | - Jacqueline Kalms
- Charité − Universitätsmedizin Berlin, Institut für Medizinische Physik und Biophysik (CC2), Group
Protein X-ray Crystallography and Signal Transduction, Charitéplatz 1, D-10117 Berlin, Germany
| | - Sagie Katz
- Technische
Universität Berlin, Institut für Chemie, Sekr. PC14, Straße
des 17. Juni 135, D-10623 Berlin, Germany
| | - Oliver Lenz
- Technische
Universität Berlin, Institut für Chemie, Sekr. PC14, Straße
des 17. Juni 135, D-10623 Berlin, Germany
| | - Patrick Scheerer
- Charité − Universitätsmedizin Berlin, Institut für Medizinische Physik und Biophysik (CC2), Group
Protein X-ray Crystallography and Signal Transduction, Charitéplatz 1, D-10117 Berlin, Germany
| | - Lars Paasche
- Technische
Universität Berlin, Institut für Chemie, Sekr. PC14, Straße
des 17. Juni 135, D-10623 Berlin, Germany
| | - Vladimir Pelmenschikov
- Technische
Universität Berlin, Institut für Chemie, Sekr. C7, Straße
des 17. Juni 135, D-10623 Berlin, Germany
| | - Uwe Kuhlmann
- Technische
Universität Berlin, Institut für Chemie, Sekr. PC14, Straße
des 17. Juni 135, D-10623 Berlin, Germany
| | - Maria Andrea Mroginski
- Technische
Universität Berlin, Institut für Chemie, Sekr. PC14, Straße
des 17. Juni 135, D-10623 Berlin, Germany
| | - Ingo Zebger
- Technische
Universität Berlin, Institut für Chemie, Sekr. PC14, Straße
des 17. Juni 135, D-10623 Berlin, Germany
| | - Peter Hildebrandt
- Technische
Universität Berlin, Institut für Chemie, Sekr. PC14, Straße
des 17. Juni 135, D-10623 Berlin, Germany
| |
Collapse
|
4
|
Oteri F, Ciaccafava A, de Poulpiquet A, Baaden M, Lojou E, Sacquin-Mora S. The weak, fluctuating, dipole moment of membrane-bound hydrogenase from Aquifex aeolicus accounts for its adaptability to charged electrodes. Phys Chem Chem Phys 2015; 16:11318-22. [PMID: 24789038 DOI: 10.1039/c4cp00510d] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
[NiFe] hydrogenases from Aquifex aeolicus (AaHase) and Desulfovibrio fructosovorans (DfHase) have been mainly studied to characterize physiological electron transfer processes, or to develop biotechnological devices such as biofuel cells. In this context, it remains difficult to control the orientation of AaHases on electrodes to achieve a fast interfacial electron transfer. Here, we study the electrostatic properties of these two proteins based on microsecond-long molecular dynamics simulations that we compare to voltammetry experiments. Our calculations show weak values and large fluctuations of the dipole direction in AaHase compared to DfHase, enabling the AaHase to absorb on both negatively and positively charged electrodes, with an orientation distribution that induces a spread in electron transfer rates. Moreover, we discuss the role of the transmembrane helix of AaHase and show that it does not substantially impact the general features of the dipole moment.
Collapse
Affiliation(s)
- Francesco Oteri
- Laboratoire de Biochimie Théorique, UPR 9080 CNRS Institut de Biologie Physico-Chimique, 13 rue Pierre et Marie Curie, 75005 Paris, France.
| | | | | | | | | | | |
Collapse
|
5
|
Huang GF, Wu XB, Bai LP, Liu K, Jiang LJ, Long MN, Chen QX. Improved O2-tolerance in variants of a H2-evolving [NiFe]-hydrogenase from Klebsiella oxytoca HP1. FEBS Lett 2015; 589:910-8. [PMID: 25747389 DOI: 10.1016/j.febslet.2015.02.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 02/14/2015] [Accepted: 02/23/2015] [Indexed: 12/29/2022]
Abstract
In this study, we investigated the mechanism of O2 tolerance of Klebsiella oxytoca HP1 H2-evolving hydrogenase 3 (KHyd3) by mutational analysis and three-dimensional structure modeling. Results revealed that certain surface amino acid residues of KHyd3 large subunit, in particular those at the outer entrance of the gas channel, have a visible effect on its oxygen tolerance. Additionally, solution pH, immobilization and O2 partial pressure also affect KHyd3 O2-tolerance to some extent. We propose that the extent of KHyd3 O2-tolerance is determined by a balance between the rate of O2 access to the active center through gas channels and the deoxidation rate of the oxidized active center. Based on our findings, two higher O2-tolerant KHyd3 mutations G300E and G300M were developed.
Collapse
Affiliation(s)
- Gang-Feng Huang
- State Key Laboratory of Cellular Stress Biology and Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Xiao-Bing Wu
- State Key Laboratory of Cellular Stress Biology and Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen 361102, China.
| | - Li-Ping Bai
- State Key Laboratory of Cellular Stress Biology and Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Ke Liu
- State Key Laboratory of Cellular Stress Biology and Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Li-Jing Jiang
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China
| | - Min-Nan Long
- School of Energy Research, Xiamen University, Xiamen 361102, China
| | - Qing-Xi Chen
- State Key Laboratory of Cellular Stress Biology and Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiamen 361102, China.
| |
Collapse
|
6
|
Structural differences of oxidized iron–sulfur and nickel–iron cofactors in O 2 -tolerant and O 2 -sensitive hydrogenases studied by X-ray absorption spectroscopy. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2015; 1847:162-170. [DOI: 10.1016/j.bbabio.2014.06.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 06/06/2014] [Accepted: 06/16/2014] [Indexed: 11/23/2022]
|
7
|
Oteri F, Baaden M, Lojou E, Sacquin-Mora S. Multiscale Simulations Give Insight into the Hydrogen In and Out Pathways of [NiFe]-Hydrogenases from Aquifex aeolicus and Desulfovibrio fructosovorans. J Phys Chem B 2014; 118:13800-11. [DOI: 10.1021/jp5089965] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Francesco Oteri
- Laboratoire
de Biochimie Théorique, CNRS UPR9080, Institut de Biologie Physico-Chimique, 13 rue Pierre et Marie Curie, 75005 Paris, France
| | - Marc Baaden
- Laboratoire
de Biochimie Théorique, CNRS UPR9080, Institut de Biologie Physico-Chimique, 13 rue Pierre et Marie Curie, 75005 Paris, France
| | - Elisabeth Lojou
- Bioénergétique
et Ingénierie des Protéines, Institut de Microbiologie
de la Méditerranée, CNRS, Aix Marseille University, 31 Chemin Joseph Aiguier, 13402 Marseille Cedex, France
| | - Sophie Sacquin-Mora
- Laboratoire
de Biochimie Théorique, CNRS UPR9080, Institut de Biologie Physico-Chimique, 13 rue Pierre et Marie Curie, 75005 Paris, France
| |
Collapse
|
8
|
Chernev P, Lambertz C, Brünje A, Leidel N, Sigfridsson KGV, Kositzki R, Hsieh CH, Yao S, Schiwon R, Driess M, Limberg C, Happe T, Haumann M. Hydride Binding to the Active Site of [FeFe]-Hydrogenase. Inorg Chem 2014; 53:12164-77. [DOI: 10.1021/ic502047q] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Petko Chernev
- Institute for Experimental
Physics, Free University Berlin, 14195 Berlin, Germany
| | - Camilla Lambertz
- Institute for Biochemistry of Plants, Department
of Photobiotechnology, Ruhr-University Bochum, 44801 Bochum, Germany
| | - Annika Brünje
- Institute for Biochemistry of Plants, Department
of Photobiotechnology, Ruhr-University Bochum, 44801 Bochum, Germany
| | - Nils Leidel
- Institute for Experimental
Physics, Free University Berlin, 14195 Berlin, Germany
| | | | - Ramona Kositzki
- Institute for Experimental
Physics, Free University Berlin, 14195 Berlin, Germany
| | - Chung-Hung Hsieh
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Shenglai Yao
- Department of Chemistry, Technical University Berlin, 10623 Berlin, Germany
| | - Rafael Schiwon
- Department of Chemistry, Humboldt University Berlin, 12489 Berlin, Germany
| | - Matthias Driess
- Department of Chemistry, Technical University Berlin, 10623 Berlin, Germany
| | - Christian Limberg
- Department of Chemistry, Humboldt University Berlin, 12489 Berlin, Germany
| | - Thomas Happe
- Institute for Biochemistry of Plants, Department
of Photobiotechnology, Ruhr-University Bochum, 44801 Bochum, Germany
| | - Michael Haumann
- Institute for Experimental
Physics, Free University Berlin, 14195 Berlin, Germany
| |
Collapse
|
9
|
Finkelmann AR, Stiebritz MT, Reiher M. Activation Barriers of Oxygen Transformation at the Active Site of [FeFe] Hydrogenases. Inorg Chem 2014; 53:11890-902. [DOI: 10.1021/ic501049z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Arndt R. Finkelmann
- Laboratorium
für Physikalische
Chemie, ETH Zürich, Valdimir-Prelog-Weg 2, 8093 Zürich, Switzerland
| | - Martin T. Stiebritz
- Laboratorium
für Physikalische
Chemie, ETH Zürich, Valdimir-Prelog-Weg 2, 8093 Zürich, Switzerland
| | - Markus Reiher
- Laboratorium
für Physikalische
Chemie, ETH Zürich, Valdimir-Prelog-Weg 2, 8093 Zürich, Switzerland
| |
Collapse
|
10
|
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
|
11
|
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
| |
Collapse
|
12
|
Fritsch J, Siebert E, Priebe J, Zebger I, Lendzian F, Teutloff C, Friedrich B, Lenz O. Rubredoxin-related maturation factor guarantees metal cofactor integrity during aerobic biosynthesis of membrane-bound [NiFe] hydrogenase. J Biol Chem 2014; 289:7982-93. [PMID: 24448806 DOI: 10.1074/jbc.m113.544668] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The membrane-bound [NiFe] hydrogenase (MBH) supports growth of Ralstonia eutropha H16 with H2 as the sole energy source. The enzyme undergoes a complex biosynthesis process that proceeds during cell growth even at ambient O2 levels and involves 14 specific maturation proteins. One of these is a rubredoxin-like protein, which is essential for biosynthesis of active MBH at high oxygen concentrations but dispensable under microaerobic growth conditions. To obtain insights into the function of HoxR, we investigated the MBH protein purified from the cytoplasmic membrane of hoxR mutant cells. Compared with wild-type MBH, the mutant enzyme displayed severely decreased hydrogenase activity. Electron paramagnetic resonance and infrared spectroscopic analyses revealed features resembling those of O2-sensitive [NiFe] hydrogenases and/or oxidatively damaged protein. The catalytic center resided partially in an inactive Niu-A-like state, and the electron transfer chain consisting of three different Fe-S clusters showed marked alterations compared with wild-type enzyme. Purification of HoxR protein from its original host, R. eutropha, revealed only low protein amounts. Therefore, recombinant HoxR protein was isolated from Escherichia coli. Unlike common rubredoxins, the HoxR protein was colorless, rather unstable, and essentially metal-free. Conversion of the atypical iron-binding motif into a canonical one through genetic engineering led to a stable reddish rubredoxin. Remarkably, the modified HoxR protein did not support MBH-dependent growth at high O2. Analysis of MBH-associated protein complexes points toward a specific interaction of HoxR with the Fe-S cluster-bearing small subunit. This supports the previously made notion that HoxR avoids oxidative damage of the metal centers of the MBH, in particular the unprecedented Cys6[4Fe-3S] cluster.
Collapse
Affiliation(s)
- Johannes Fritsch
- From the Institut für Biologie/Mikrobiologie, Humboldt-Universität zu Berlin, Chausseestrasse 117, 10115 Berlin
| | | | | | | | | | | | | | | |
Collapse
|
13
|
Abstract
The origin of the tolerance of a subclass of [NiFe]-hydrogenases to the presence of oxygen was unclear for a long time. Recent spectroscopic studies showed a conserved active site between oxygen-sensitive and oxygen-tolerant hydrogenases, and modifications in the vicinity of the active site in the large subunit could be excluded as the origin of catalytic activity even in the presence of molecular oxygen. A combination of bioinformatics and protein structural modelling revealed an unusual co-ordination motif in the vicinity of the proximal Fe-S cluster in the small subunit. Mutational experiments confirmed the relevance of two additional cysteine residues for the oxygen-tolerance. This new binding motif can be used to classify sequences from [NiFe]-hydrogenases according to their potential oxygen-tolerance. The X-ray structural analysis of the reduced form of the enzyme displayed a new type of [4Fe-3S] cluster co-ordinated by six surrounding cysteine residues in a distorted cubanoid geometry. The unusual electronic structure of the proximal Fe-S cluster can be analysed using the broken-symmetry approach and gave results in agreement with experimental Mößbauer studies. An electronic effect of the proximal Fe-S cluster on the remote active site can be detected and quantified. In the oxygen-tolerant hydrogenases, the hydride occupies an asymmetric binding position in the Ni-C state. This may rationalize the more facile activation and catalytic turnover in this subclass of enzymes.
Collapse
|
14
|
Pelmenschikov V, Kaupp M. Redox-Dependent Structural Transformations of the [4Fe-3S] Proximal Cluster in O2-Tolerant Membrane-Bound [NiFe]-Hydrogenase: A DFT Study. J Am Chem Soc 2013; 135:11809-23. [DOI: 10.1021/ja402159u] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Vladimir Pelmenschikov
- Technische Universität Berlin, Institut für Chemie, Theoretische Chemie, Sekr. C7, Strasse
des 17. Juni 135, 10623 Berlin, Germany
| | - Martin Kaupp
- Technische Universität Berlin, Institut für Chemie, Theoretische Chemie, Sekr. C7, Strasse
des 17. Juni 135, 10623 Berlin, Germany
| |
Collapse
|
15
|
[NiFe] hydrogenases: a common active site for hydrogen metabolism under diverse conditions. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2013; 1827:986-1002. [PMID: 23399489 DOI: 10.1016/j.bbabio.2013.01.015] [Citation(s) in RCA: 160] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Revised: 12/06/2012] [Accepted: 01/26/2013] [Indexed: 01/05/2023]
Abstract
Hydrogenase proteins catalyze the reversible conversion of molecular hydrogen to protons and electrons. The most abundant hydrogenases contain a [NiFe] active site; these proteins are generally biased towards hydrogen oxidation activity and are reversibly inhibited by oxygen. However, there are [NiFe] hydrogenase that exhibit unique properties, including aerobic hydrogen oxidation and preferential hydrogen production activity; these proteins are highly relevant in the context of biotechnological devices. This review describes four classes of these "nonstandard" [NiFe] hydrogenases and discusses the electrochemical, spectroscopic, and structural studies that have been used to understand the mechanisms behind this exceptional behavior. A revised classification protocol is suggested in the conclusions, particularly with respect to the term "oxygen-tolerance". This article is part of a special issue entitled: metals in bioenergetics and biomimetics systems.
Collapse
|
16
|
|
17
|
Mouesca JM, Fontecilla-Camps JC, Amara P. The Structural Plasticity of the Proximal [4Fe3S] Cluster is Responsible for the O2Tolerance of Membrane-Bound [NiFe] Hydrogenases. Angew Chem Int Ed Engl 2013; 52:2002-6. [DOI: 10.1002/anie.201209063] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Indexed: 11/08/2022]
|
18
|
Mouesca JM, Fontecilla-Camps JC, Amara P. The Structural Plasticity of the Proximal [4Fe3S] Cluster is Responsible for the O2
Tolerance of Membrane-Bound [NiFe] Hydrogenases. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201209063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
19
|
Parkin A, Sargent F. The hows and whys of aerobic H2 metabolism. Curr Opin Chem Biol 2012; 16:26-34. [PMID: 22366384 DOI: 10.1016/j.cbpa.2012.01.012] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2011] [Revised: 01/16/2012] [Accepted: 01/25/2012] [Indexed: 01/08/2023]
Abstract
The bacterial [NiFe]-hydrogenases have been classified as either 'standard' or 'O2-tolerant' based on their ability to function in the presence of O2. Typically, these enzymes contain four redox-active metal centers: a Ni-Fe-CO-2CN- active site and three electron-transferring Fe-S clusters. Recent research suggests that, rather than differences at the catalytic active site, it is a novel Fe-S cluster electron transfer (ET) relay that controls how [NiFe]-hydrogenases recover from O2 attack. In light of recent structural data and mutagenic studies this article reviews the molecular mechanism of O2-tolerance in [NiFe]-hydrogenases and discusses the biosynthesis of the unique Fe-S relay.
Collapse
Affiliation(s)
- Alison Parkin
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, Oxford OX1 3QR, UK
| | | |
Collapse
|
20
|
Grubel K, Holland PL. Sauerstoffverträgliche Hydrogenasen: Eisen-Schwefel-Cluster als Ursache. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201108761] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
21
|
Grubel K, Holland PL. New iron-sulfur clusters help hydrogenases tolerate oxygen. Angew Chem Int Ed Engl 2012; 51:3308-10. [PMID: 22323270 DOI: 10.1002/anie.201108761] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Indexed: 11/08/2022]
Abstract
One S less: recent crystallographic studies have revealed a new, oxygen-tolerant kind of iron-sulfide cluster [4Fe-3S], which contains only three rather than four sulfur atoms in its cage (see picture; yellow=S, red=Fe, blue=N, green=cysteine). It is proposed that the cluster's ability to transfer multiple electrons increases the oxygen tolerance by enabling the enzyme to reduce O(2) rapidly, converting the dioxygen into harmless water before it can damage the protein.
Collapse
|
22
|
|
23
|
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
| | | |
Collapse
|
24
|
Lambertz C, Leidel N, Havelius KGV, Noth J, Chernev P, Winkler M, Happe T, Haumann M. O2 reactions at the six-iron active site (H-cluster) in [FeFe]-hydrogenase. J Biol Chem 2011; 286:40614-23. [PMID: 21930709 DOI: 10.1074/jbc.m111.283648] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Irreversible inhibition by molecular oxygen (O(2)) complicates the use of [FeFe]-hydrogenases (HydA) for biotechnological hydrogen (H(2)) production. Modification by O(2) of the active site six-iron complex denoted as the H-cluster ([4Fe4S]-2Fe(H)) of HydA1 from the green alga Chlamydomonas reinhardtii was characterized by x-ray absorption spectroscopy at the iron K-edge. In a time-resolved approach, HydA1 protein samples were prepared after increasing O(2) exposure periods at 0 °C. A kinetic analysis of changes in their x-ray absorption near edge structure and extended X-ray absorption fine structure spectra revealed three phases of O(2) reactions. The first phase (τ(1) ≤ 4 s) is characterized by the formation of an increased number of Fe-O,C bonds, elongation of the Fe-Fe distance in the binuclear unit (2Fe(H)), and oxidation of one iron ion. The second phase (τ(2) ≈ 15 s) causes a ∼50% decrease of the number of ∼2.7-Å Fe-Fe distances in the [4Fe4S] subcluster and the oxidation of one more iron ion. The final phase (τ(3) ≤ 1000 s) leads to the disappearance of most Fe-Fe and Fe-S interactions and further iron oxidation. These results favor a reaction sequence, which involves 1) oxygenation at 2Fe(H(+)) leading to the formation of a reactive oxygen species-like superoxide (O(2)(-)), followed by 2) H-cluster inactivation and destabilization due to ROS attack on the [4Fe4S] cluster to convert it into an apparent [3Fe4S](+) unit, leading to 3) complete O(2)-induced degradation of the remainders of the H-cluster. This mechanism suggests that blocking of ROS diffusion paths and/or altering the redox potential of the [4Fe4S] cubane by genetic engineering may yield improved O(2) tolerance in [FeFe]-hydrogenase.
Collapse
Affiliation(s)
- Camilla Lambertz
- Lehrstuhl für Biochemie der Pflanzen, AG Photobiotechnologie, Ruhr-Universität Bochum, 44780 Bochum, Germany
| | | | | | | | | | | | | | | |
Collapse
|
25
|
Rippers Y, Utesch T, Hildebrandt P, Zebger I, Mroginski MA. Insights into the structure of the active site of the O2-tolerant membrane bound [NiFe] hydrogenase of R. eutropha H16 by molecular modelling. Phys Chem Chem Phys 2011; 13:16146-9. [DOI: 10.1039/c1cp21045a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|