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Barion G, Canal C, Panozzo A, Moore SS, Piotto S, Vamerali T. The contrasting photosynthesis and growth response of young test species irrigated with electro-chemical modified water. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 212:108780. [PMID: 38850726 DOI: 10.1016/j.plaphy.2024.108780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/16/2024] [Accepted: 05/27/2024] [Indexed: 06/10/2024]
Abstract
The study evaluated the effects of treating irrigation water with a coaxial flow variator (CFV) on the morpho-physiology of pot-cultivated test species, including cucumber (Cucumis sativus, CU), lettuce (Lactuca sativa, LE), and sorghum (Sorghum vulgare, SO), in early stages of growth. CFV caused a lower oxidation reduction potential (ORP), increased pH and flow resistance and inductance. It induced changes in the absorbance characteristics of water in specific spectral regions, likely associated with greater stretching and reduced bending vibrations compared to untreated water. While assimilation rate and photosynthetic efficiency were not significantly affected at 60 days after sowing, treated water increased the stomatal conductance to water vapour gsw (+79%) and the electron transport rate ETR (+10%) in CU, as well as the non-photochemical quenching NPQ (+33%) in SO. Treated water also reduced leaf temperature in all species (-0.86 °C on average). This translated into improved plant biomass (leaves: +34%; roots: +140%) and reduced leaf-to-root biomass ratio (-42%) in SO, allowing both faster aerial growth and soil colonization, which can be exploited to improve plant tolerance against abiotic stresses. In the C3 species CU and LE, plant biomass was instead reduced, although significantly in LE only, while the leaf-to-root biomass ratio was generally enhanced, a result likely profitable in the cultivation of leafy vegetables. This is a preliminary trial on the effects of functionalized water and much remains to be investigated in other physiological processes, plant species, and growth stages for the full exploitation of this water treatment in agronomy.
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Affiliation(s)
- Giuseppe Barion
- Department of Agronomy Food Natural Resources Animals and the Environment, Padua University, Viale dell'università 16, 35020, Legnaro, Padua, Italy
| | - Camilla Canal
- Department of Agronomy Food Natural Resources Animals and the Environment, Padua University, Viale dell'università 16, 35020, Legnaro, Padua, Italy
| | - Anna Panozzo
- Department of Agronomy Food Natural Resources Animals and the Environment, Padua University, Viale dell'università 16, 35020, Legnaro, Padua, Italy.
| | - Selina Sterup Moore
- Department of Agroecology, Aarhus University, Blichers Allè 20, 8830, Tjele, Denmark
| | - Simone Piotto
- Department of Agronomy Food Natural Resources Animals and the Environment, Padua University, Viale dell'università 16, 35020, Legnaro, Padua, Italy
| | - Teofilo Vamerali
- Department of Agronomy Food Natural Resources Animals and the Environment, Padua University, Viale dell'università 16, 35020, Legnaro, Padua, Italy
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2
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Lehnert N, Kim E, Dong HT, Harland JB, Hunt AP, Manickas EC, Oakley KM, Pham J, Reed GC, Alfaro VS. The Biologically Relevant Coordination Chemistry of Iron and Nitric Oxide: Electronic Structure and Reactivity. Chem Rev 2021; 121:14682-14905. [PMID: 34902255 DOI: 10.1021/acs.chemrev.1c00253] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Nitric oxide (NO) is an important signaling molecule that is involved in a wide range of physiological and pathological events in biology. Metal coordination chemistry, especially with iron, is at the heart of many biological transformations involving NO. A series of heme proteins, nitric oxide synthases (NOS), soluble guanylate cyclase (sGC), and nitrophorins, are responsible for the biosynthesis, sensing, and transport of NO. Alternatively, NO can be generated from nitrite by heme- and copper-containing nitrite reductases (NIRs). The NO-bearing small molecules such as nitrosothiols and dinitrosyl iron complexes (DNICs) can serve as an alternative vehicle for NO storage and transport. Once NO is formed, the rich reaction chemistry of NO leads to a wide variety of biological activities including reduction of NO by heme or non-heme iron-containing NO reductases and protein post-translational modifications by DNICs. Much of our understanding of the reactivity of metal sites in biology with NO and the mechanisms of these transformations has come from the elucidation of the geometric and electronic structures and chemical reactivity of synthetic model systems, in synergy with biochemical and biophysical studies on the relevant proteins themselves. This review focuses on recent advancements from studies on proteins and model complexes that not only have improved our understanding of the biological roles of NO but also have provided foundations for biomedical research and for bio-inspired catalyst design in energy science.
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Affiliation(s)
- Nicolai Lehnert
- Department of Chemistry and Department of Biophysics, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Eunsuk Kim
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Hai T Dong
- Department of Chemistry and Department of Biophysics, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Jill B Harland
- Department of Chemistry and Department of Biophysics, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Andrew P Hunt
- Department of Chemistry and Department of Biophysics, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Elizabeth C Manickas
- Department of Chemistry and Department of Biophysics, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Kady M Oakley
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - John Pham
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Garrett C Reed
- Department of Chemistry and Department of Biophysics, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Victor Sosa Alfaro
- Department of Chemistry and Department of Biophysics, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
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3
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Shafizadeh N, Crestoni ME, de la Lande A, Soep B. Heme ligation in the gas phase. INT REV PHYS CHEM 2021. [DOI: 10.1080/0144235x.2021.1952006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | - Maria Elisa Crestoni
- Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma “La Sapienza”, Roma, Italy
| | | | - Benoît Soep
- ISMO-CNRS, Université Paris Saclay, Orsay Cedex, France
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4
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Stojičkov M, Sturm S, Čobeljić B, Pevec A, Jevtović M, Scheitler A, Radanović D, Senft L, Turel I, Andjelković K, Miehlich M, Meyer K, Ivanović‐Burmazović I. Cobalt(II), Zinc(II), Iron(III), and Copper(II) Complexes Bearing Positively Charged Quaternary Ammonium Functionalities: Synthesis, Characterization, Electrochemical Behavior, and SOD Activity. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000415] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Marko Stojičkov
- Faculty of Chemistry University of Belgrade Studentski trg 12‐16 11000 Belgrade Serbia
| | - Sabrina Sturm
- Department of Chemistry and Pharmacy Friedrich‐Alexander University Erlangen‐Nürnberg Egerlandstr. 1 91058 Erlangen Germany
| | - Božidar Čobeljić
- Faculty of Chemistry University of Belgrade Studentski trg 12‐16 11000 Belgrade Serbia
| | - Andrej Pevec
- Faculty of Chemistry and Chemical Technology University of Ljubljana Večna pot 113 1000 Ljubljana Slovenia
| | - Mima Jevtović
- Faculty of Chemistry University of Belgrade Studentski trg 12‐16 11000 Belgrade Serbia
| | - Andreas Scheitler
- Department of Chemistry and Pharmacy Friedrich‐Alexander University Erlangen‐Nürnberg Egerlandstr. 1 91058 Erlangen Germany
| | - Dušanka Radanović
- Institute of Chemistry Technology and Metallurgy University of Belgrade Njegoševa 12, P.O. Box 815 11000 Belgrade Serbia
| | - Laura Senft
- Department of Chemistry and Pharmacy Friedrich‐Alexander University Erlangen‐Nürnberg Egerlandstr. 1 91058 Erlangen Germany
| | - Iztok Turel
- Faculty of Chemistry and Chemical Technology University of Ljubljana Večna pot 113 1000 Ljubljana Slovenia
| | - Katarina Andjelković
- Faculty of Chemistry University of Belgrade Studentski trg 12‐16 11000 Belgrade Serbia
| | - Matthias Miehlich
- Department of Chemistry and Pharmacy Friedrich‐Alexander University Erlangen‐Nürnberg Egerlandstr. 1 91058 Erlangen Germany
| | - Karsten Meyer
- Department of Chemistry and Pharmacy Friedrich‐Alexander University Erlangen‐Nürnberg Egerlandstr. 1 91058 Erlangen Germany
| | - Ivana Ivanović‐Burmazović
- Department of Chemistry and Pharmacy Friedrich‐Alexander University Erlangen‐Nürnberg Egerlandstr. 1 91058 Erlangen Germany
- Department Chemie Ludwigs‐Maximilians‐Universität Butenandtstraße 5‐13 81377 München Germany
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5
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Palopoli C, Ferreyra J, Conte-Daban A, Richezzi M, Foi A, Doctorovich F, Anxolabéhère-Mallart E, Hureau C, Signorella SR. Insights into Second-Sphere Effects on Redox Potentials, Spectroscopic Properties, and Superoxide Dismutase Activity of Manganese Complexes with Schiff-Base Ligands. ACS OMEGA 2019; 4:48-57. [PMID: 31459311 PMCID: PMC6649300 DOI: 10.1021/acsomega.8b03018] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 12/20/2018] [Indexed: 05/04/2023]
Abstract
Six Mn-Schiff base complexes, [Mn(X-salpn)]0/+ (salpn = 1,3-bis(sal-ic-ylidenamino)propane, X = H [1], 5-Cl [2], 2,5-F2 [3], 3,5-Cl2 [4], 5-NO2 [5], 3,5-(NO2)2 [6]), were synthesized and characterized in solution, and second-sphere effects on their electrochemical and spectroscopic properties were analyzed. The six complexes catalyze the dismutation of superoxide with catalytic rate constants in the range 0.65 to 1.54 × 106 M-1 s-1 obtained through the nitro blue tetrazolium photoreduction inhibition superoxide dismutases assay, in aqueous medium of pH 7.8. In solution, these compounds possess two labile solvent molecules in the axial positions favoring coordination of the highly nucleophilic O2 •- to the metal center. Even complex 5, [Mn(5-(NO2)salpn) (OAc) (H2O)], with an axial acetate in the solid state, behaves as a 1:1 electrolyte in methanolic solution. Electron paramagnetic resonance and UV-vis monitoring of the reaction of [Mn(X-salpn)]0/+ with KO2 demonstrates that in diluted solutions these complexes behave as catalysts supporting several additions of excess O2 •-, but at high complex concentrations (≥0.75 mM) catalyst self-inhibition occurs by the formation of a catalytically inactive dimer. The correlation of spectroscopic, electrochemical, and kinetics data suggest that second-sphere effects control the oxidation states of Mn involved in the O2 •- dismutation cycle catalyzed by complexes 1-6 and modulate the strength of the Mn-substrate adduct for electron-transfer through an inner-sphere mechanism.
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Affiliation(s)
- Claudia Palopoli
- IQUIR
(Instituto de Química Rosario), Consejo Nacional de Investigaciones
Científicas y Técnicas (CONICET), Facultad de Ciencias
Bioquímicas y Farmacéuticas, Universidad Nacional de
Rosario, Suipacha 531, S2002LRK Rosario, Argentina
| | - Joaquín Ferreyra
- IQUIR
(Instituto de Química Rosario), Consejo Nacional de Investigaciones
Científicas y Técnicas (CONICET), Facultad de Ciencias
Bioquímicas y Farmacéuticas, Universidad Nacional de
Rosario, Suipacha 531, S2002LRK Rosario, Argentina
| | | | - Micaela Richezzi
- IQUIR
(Instituto de Química Rosario), Consejo Nacional de Investigaciones
Científicas y Técnicas (CONICET), Facultad de Ciencias
Bioquímicas y Farmacéuticas, Universidad Nacional de
Rosario, Suipacha 531, S2002LRK Rosario, Argentina
| | - Ana Foi
- Departamento
de Química Inorgánica, Analítica y Química
Física/INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EHA Buenos Aires, Argentina
| | - Fabio Doctorovich
- Departamento
de Química Inorgánica, Analítica y Química
Física/INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EHA Buenos Aires, Argentina
| | - Elodie Anxolabéhère-Mallart
- Laboratoire
d’Electrochimie Moléculaire UMR CNRS-P7 7591, Université
Paris Diderot-Paris, 15 rue Jean-Antoine de Baïf, 75205 Paris Cedex 13, France
| | - Christelle Hureau
- LCC-CNRS,
Université de Toulouse, 205 route de Narbonne, 31077 Toulouse, France
| | - Sandra R. Signorella
- IQUIR
(Instituto de Química Rosario), Consejo Nacional de Investigaciones
Científicas y Técnicas (CONICET), Facultad de Ciencias
Bioquímicas y Farmacéuticas, Universidad Nacional de
Rosario, Suipacha 531, S2002LRK Rosario, Argentina
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6
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Scheitler A, Friedel F, Puchta R, Dücker-Benfer C, Ivanović-Burmazović I. Synthetic Access to Derivatized Mn-Pyane as a Redox-modulated Pool of SODm. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Andreas Scheitler
- Department of Chemistry and Pharmacy; Friedrich-Alexander University Erlangen-Nürnberg; Egerlandstrasse 1 91058 Germany
| | - Felix Friedel
- Department of Chemistry and Pharmacy; Friedrich-Alexander University Erlangen-Nürnberg; Egerlandstrasse 1 91058 Germany
| | - Ralph Puchta
- Department of Chemistry and Pharmacy; Friedrich-Alexander University Erlangen-Nürnberg; Egerlandstrasse 1 91058 Germany
- Central Instituite for Scientific Computing (ZISC); Friedrich-Alexander University Erlangen-Nürnberg; Martensstrasse 5a 91058 Germany
| | - Carlos Dücker-Benfer
- Department of Chemistry and Pharmacy; Friedrich-Alexander University Erlangen-Nürnberg; Egerlandstrasse 1 91058 Germany
| | - Ivana Ivanović-Burmazović
- Department of Chemistry and Pharmacy; Friedrich-Alexander University Erlangen-Nürnberg; Egerlandstrasse 1 91058 Germany
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7
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Rationally designed mimics of antioxidant manganoenzymes: Role of structural features in the quest for catalysts with catalase and superoxide dismutase activity. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.03.005] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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8
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Weekley CM, Kenkel I, Lippert R, Wei S, Lieb D, Cranwell T, Wedding JL, Zillmann AS, Rohr R, Filipovic MR, Ivanović-Burmazović I, Harris HH. Cellular Fates of Manganese(II) Pentaazamacrocyclic Superoxide Dismutase (SOD) Mimetics: Fluorescently Labeled MnSOD Mimetics, X-ray Absorption Spectroscopy, and X-ray Fluorescence Microscopy Studies. Inorg Chem 2017; 56:6076-6093. [DOI: 10.1021/acs.inorgchem.6b03073] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Claire M. Weekley
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Isabell Kenkel
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Rainer Lippert
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Shengwei Wei
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Dominik Lieb
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Tiffanny Cranwell
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Jason L. Wedding
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Annika S. Zillmann
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Robin Rohr
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Milos R. Filipovic
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Ivana Ivanović-Burmazović
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Hugh H. Harris
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia
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9
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Kenkel I, Franke A, Dürr M, Zahl A, Dücker-Benfer C, Langer J, Filipović MR, Yu M, Puchta R, Fiedler SR, Shores MP, Goldsmith CR, Ivanović-Burmazović I. Switching between Inner- and Outer-Sphere PCET Mechanisms of Small-Molecule Activation: Superoxide Dismutation and Oxygen/Superoxide Reduction Reactivity Deriving from the Same Manganese Complex. J Am Chem Soc 2017; 139:1472-1484. [PMID: 28111938 DOI: 10.1021/jacs.6b08394] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Readily exchangeable water molecules are commonly found in the active sites of oxidoreductases, yet the overwhelming majority of studies on small-molecule mimics of these enzymes entirely ignores the contribution of water to the reactivity. Studies of how these enzymes can continue to function in spite of the presence of highly oxidizing species are likewise limited. The mononuclear MnII complex with the potentially hexadentate ligand N-(2-hydroxy-5-methylbenzyl)-N,N',N'-tris(2-pyridinylmethyl)-1,2-ethanediamine (LOH) was previously found to act as both a H2O2-responsive MRI contrast agent and a mimic of superoxide dismutase (SOD). Here, we studied this complex in aqueous solutions at different pH values in order to determine its (i) acid-base equilibria, (ii) coordination equilibria, (iii) substitution lability and operative mechanisms for water exchange, (iv) redox behavior and ability to participate in proton-coupled electron transfer (PCET) reactions, (v) SOD activity and reductive activity toward both oxygen and superoxide, and (vi) mechanism for its transformation into the binuclear MnII complex with (H)OL-LOH and its hydroxylated derivatives. The conclusions drawn from potentiometric titrations, low-temperature mass spectrometry, temperature- and pressure-dependent 17O NMR spectroscopy, electrochemistry, stopped-flow kinetic analyses, and EPR measurements were supported by the structural characterization and quantum chemical analysis of proposed intermediate species. These comprehensive studies enabled us to determine how transiently bound water molecules impact the rate and mechanism of SOD catalysis. Metal-bound water molecules facilitate the PCET necessary for outer-sphere SOD activity. The absence of the water ligand, conversely, enables the inner-sphere reduction of both superoxide and dioxygen. The LOH complex maintains its SOD activity in the presence of •OH and MnIV-oxo species by channeling these oxidants toward the synthesis of a functionally equivalent binuclear MnII species.
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Affiliation(s)
- Isabell Kenkel
- Department of Chemistry and Pharmacy, University Erlangen-Nuremberg , 91058 Erlangen, Germany
| | - Alicja Franke
- Department of Chemistry and Pharmacy, University Erlangen-Nuremberg , 91058 Erlangen, Germany
| | - Maximilian Dürr
- Department of Chemistry and Pharmacy, University Erlangen-Nuremberg , 91058 Erlangen, Germany
| | - Achim Zahl
- Department of Chemistry and Pharmacy, University Erlangen-Nuremberg , 91058 Erlangen, Germany
| | - Carlos Dücker-Benfer
- Department of Chemistry and Pharmacy, University Erlangen-Nuremberg , 91058 Erlangen, Germany
| | - Jens Langer
- Department of Chemistry and Pharmacy, University Erlangen-Nuremberg , 91058 Erlangen, Germany
| | - Milos R Filipović
- Department of Chemistry and Pharmacy, University Erlangen-Nuremberg , 91058 Erlangen, Germany
| | - Meng Yu
- Department of Chemistry and Biochemistry, Auburn University , Auburn, Alabama 36849, United States
| | - Ralph Puchta
- Department of Chemistry and Pharmacy, University Erlangen-Nuremberg , 91058 Erlangen, Germany
| | - Stephanie R Fiedler
- Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523-1872, United States
| | - Matthew P Shores
- Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523-1872, United States
| | - Christian R Goldsmith
- Department of Chemistry and Biochemistry, Auburn University , Auburn, Alabama 36849, United States
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10
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Bakac A, Pestovsky O, Durfey BL, Kristian KE. Kinetics and thermodynamics of nitric oxide binding to transition metal complexes. Relationship to dioxygen binding. Chem Sci 2013. [DOI: 10.1039/c3sc50157d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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11
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Lieb D, Friedel FC, Yawer M, Zahl A, Khusniyarov MM, Heinemann FW, Ivanović-Burmazović I. Dinuclear Seven-Coordinate Mn(II) Complexes: Effect of Manganese(II)-Hydroxo Species on Water Exchange and Superoxide Dismutase Activity. Inorg Chem 2012; 52:222-36. [DOI: 10.1021/ic301714d] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Dominik Lieb
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
| | - Felix C. Friedel
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
| | - Mirza Yawer
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
| | - Achim Zahl
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
| | - Marat M. Khusniyarov
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
| | - Frank W. Heinemann
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
| | - Ivana Ivanović-Burmazović
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
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12
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Kalmár J, Biri B, Lente G, Bányai I, Budimir A, Biruš M, Batinić-Haberle I, Fábián I. Detailed mechanism of the autoxidation of N-hydroxyurea catalyzed by a superoxide dismutase mimic Mn(III) porphyrin: formation of the nitrosylated Mn(II) porphyrin as an intermediate. Dalton Trans 2012; 41:11875-84. [PMID: 22911446 DOI: 10.1039/c2dt31200j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The in vitro autoxidation of N-hydroxyurea (HU) is catalyzed by Mn(III)TTEG-2-PyP(5+), a synthetic water soluble Mn(III) porphyrin which is also a potent mimic of the enzyme superoxide dismutase. The detailed mechanism of the reaction is deduced from kinetic studies under basic conditions mostly based on data measured at pH = 11.7 but also including some pH-dependent observations in the pH range 9-13. The major intermediates were identified by UV-vis spectroscopy and electrospray ionization mass spectrometry. The reaction starts with a fast axial coordination of HU to the metal center of Mn(III)TTEG-2-PyP(5+), which is followed by a ligand-to-metal electron transfer to get Mn(II)TTEG-2-PyP(4+) and the free radical derived from HU (HU˙). Nitric oxide (NO) and nitroxyl (HNO) are minor intermediates. The major pathway for the formation of the most significant intermediate, the {MnNO} complex of Mn(II)TTEG-2-PyP(4+), is the reaction of Mn(II)TTEG-2-PyP(4+) with NO. We have confirmed that the autoxidation of the intermediates opens alternative reaction channels, and the process finally yields NO(2)(-) and the initial Mn(III)TTEG-2-PyP(5+). The photochemical release of NO from the {MnNO} intermediate was also studied. Kinetic simulations were performed to validate the deduced rate constants. The investigated reaction has medical implications: the accelerated production of NO and HNO from HU may be utilized for therapeutic purposes.
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Affiliation(s)
- József Kalmár
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Debrecen, Hungary H-4010, POB-21
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13
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IvanoviĆ-BurmazoviĆ I, FilipoviĆ MR. Reactivity of manganese superoxide dismutase mimics toward superoxide and nitric oxide. ADVANCES IN INORGANIC CHEMISTRY 2012. [DOI: 10.1016/b978-0-12-396462-5.00003-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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14
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Lanucara F, Chiavarino B, Crestoni ME, Scuderi D, Sinha RK, Maı̂tre P, Fornarini S. Naked Five-Coordinate FeIII(NO) Porphyrin Complexes: Vibrational and Reactivity Features. Inorg Chem 2011; 50:4445-52. [DOI: 10.1021/ic200073v] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Francesco Lanucara
- Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma “La Sapienza”, P.le A. Moro 5, I-00185, Roma, Italy
| | - Barbara Chiavarino
- Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma “La Sapienza”, P.le A. Moro 5, I-00185, Roma, Italy
| | - Maria Elisa Crestoni
- Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma “La Sapienza”, P.le A. Moro 5, I-00185, Roma, Italy
| | - Debora Scuderi
- Laboratoire de Chimie Physique, UMR8000 CNRS, Faculté des Sciences, Université Paris Sud, Bâtiment 350, 91405 Orsay Cedex, France
| | - Rajeev K. Sinha
- Laboratoire de Chimie Physique, UMR8000 CNRS, Faculté des Sciences, Université Paris Sud, Bâtiment 350, 91405 Orsay Cedex, France
| | - Philippe Maı̂tre
- Laboratoire de Chimie Physique, UMR8000 CNRS, Faculté des Sciences, Université Paris Sud, Bâtiment 350, 91405 Orsay Cedex, France
| | - Simonetta Fornarini
- Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma “La Sapienza”, P.le A. Moro 5, I-00185, Roma, Italy
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15
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Iranzo O. Manganese complexes displaying superoxide dismutase activity: A balance between different factors. Bioorg Chem 2011; 39:73-87. [DOI: 10.1016/j.bioorg.2011.02.001] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2010] [Revised: 02/14/2011] [Accepted: 02/14/2011] [Indexed: 01/05/2023]
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Begel S, Heinemann FW, Stopa G, Stochel G, van Eldik R. The Classic “Brown-Ring” Reaction in a New Medium: Kinetics, Mechanism, and Spectroscopy of the Reversible Binding of Nitric Oxide to Iron(II) in an Ionic Liquid. Inorg Chem 2011; 50:3946-58. [DOI: 10.1021/ic1023357] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Svetlana Begel
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr. 1, 91058 Erlangen, Germany
| | - Frank W. Heinemann
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr. 1, 91058 Erlangen, Germany
| | - Grzegorz Stopa
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland
| | - Grazyna Stochel
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland
| | - Rudi van Eldik
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr. 1, 91058 Erlangen, Germany
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Chiarella GM, Cotton FA, Murillo CA, Young MD. Tuning the Electrochemistry of Re26+ Species with Divergent Bicyclic Guanidinate Ligands and by Modification of Axial π Interactions. Inorg Chem 2011; 50:1258-64. [DOI: 10.1021/ic101890p] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gina M. Chiarella
- Department of Chemistry, P.O. Box 3012, Texas A&M University, College Station, Texas 77842-3012, United States
| | - F. Albert Cotton
- Department of Chemistry, P.O. Box 3012, Texas A&M University, College Station, Texas 77842-3012, United States
| | - Carlos A. Murillo
- Department of Chemistry, P.O. Box 3012, Texas A&M University, College Station, Texas 77842-3012, United States
| | - Mark D. Young
- Department of Chemistry, P.O. Box 3012, Texas A&M University, College Station, Texas 77842-3012, United States
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18
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Chiarella GM, Cotton FA, Murillo CA. An uncommon highly oxidized multiple bonded Re28+ species. Chem Commun (Camb) 2011; 47:8940-2. [DOI: 10.1039/c1cc13193a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Lieb D, Zahl A, Shubina TE, Ivanović-Burmazović I. Water exchange on manganese(III) porphyrins. Mechanistic insights relevant for oxygen evolving complex and superoxide dismutation catalysis. J Am Chem Soc 2010; 132:7282-4. [PMID: 20462177 DOI: 10.1021/ja1014585] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this work the rate constants (k(ex)) and the activation parameters (DeltaH(double dagger), DeltaS(double dagger), and DeltaV(double dagger)) for the water exchange process on Mn(III) centers have experimentally been determined using temperature and pressure dependent (17)O NMR techniques. For the investigations the Mn(III) porphyrin complexes [Mn(III)(TPPS)S(2)](n-) and [Mn(III)(TMpyP)S(2)](n+) (S = H(2)O and/or OH(-)) have been selected due to their high solution stability in a wide pH range, enabling the measurements of water exchange in the case of both diaqua and aqua-hydroxo complexes. We have experimentally demonstrated that the water exchange on Mn(III) porphyrins is a fast process (k(ex) approximately = 10(7) s(-1)) of an I(d) to I mechanism, strongly influenced by a Jahn-Teller effect and as such almost independent of a porphyrin charge and a trans ligand. This is also supported by our DFT calculations which show only a slight difference in an average Mn(III)-OH(2) bond found for a positively charged model porphyrin with protonated pyridine groups (2.446 A) and for a simple model without any substituents on the porphyrin ring (2.437 A). The calculated effective charge on the Mn center, which is significantly lower than its formal +3 charge (ca. +1.5 for diaqua; +1.4 for aqua-hydroxo), also contributes to its substitution lability. The herein presented results are discussed in connection to a possible fast exchanging substrate binding site in photosystem II and corresponding inorganic model complexes, as well as in the context of a possible inner-sphere catalytic pathway for superoxide dismutation on Mn centers.
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Affiliation(s)
- Dominik Lieb
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Department Chemie und Pharmazie, Egerlandstr. 1, 91058 Erlangen, Germany
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20
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Goodrich LE, Paulat F, Praneeth VKK, Lehnert N. Electronic Structure of Heme-Nitrosyls and Its Significance for Nitric Oxide Reactivity, Sensing, Transport, and Toxicity in Biological Systems. Inorg Chem 2010; 49:6293-316. [DOI: 10.1021/ic902304a] [Citation(s) in RCA: 167] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Lauren E. Goodrich
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109
| | - Florian Paulat
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109
| | - V. K. K. Praneeth
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109
| | - Nicolai Lehnert
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109
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22
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Ashley DC, Brinkley DW, Roth JP. Oxygen Isotope Effects as Structural and Mechanistic Probes in Inorganic Oxidation Chemistry. Inorg Chem 2010; 49:3661-75. [DOI: 10.1021/ic901778g] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Daniel C. Ashley
- Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218
| | - David W. Brinkley
- Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218
| | - Justine P. Roth
- Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218
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23
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Affiliation(s)
- Wolfgang Kaim
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70550 Stuttgart, Germany.
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24
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van Eldik R, Hubbard CD. Application of low-temperature rapid-scan techniques in the elucidation of inorganic reaction mechanisms. Coord Chem Rev 2010. [DOI: 10.1016/j.ccr.2009.09.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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25
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26
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Brausam A, Eigler S, Jux N, van Eldik R. Mechanistic Investigations of the Reaction of an Iron(III) Octa-Anionic Porphyrin Complex with Hydrogen Peroxide and the Catalyzed Oxidation of Diammonium-2,2′-azinobis(3-ethylbenzothiazoline-6-sulfonate). Inorg Chem 2009; 48:7667-78. [DOI: 10.1021/ic9005955] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ariane Brausam
- Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Siegfried Eigler
- Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Norbert Jux
- Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Rudi van Eldik
- Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany
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Filipović MR, Duerr K, Mojović M, Simeunović V, Zimmermann R, Niketić V, Ivanović-Burmazović I. NO dismutase activity of seven-coordinate manganese(II) pentaazamacrocyclic complexes. Angew Chem Int Ed Engl 2009; 47:8735-9. [PMID: 18924192 DOI: 10.1002/anie.200801325] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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28
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29
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Filipović M, Duerr K, Mojović M, Simeunović V, Zimmermann R, Niketić V, Ivanović-Burmazović I. NO-Dismutase-Aktivität siebenfach koordinierter Mangan(II)- Komplexe von Pentaazamakrocyclen. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200801325] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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