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Oszajca M, Drabik G, Radoń M, Franke A, van Eldik R, Stochel G. Experimental and Computational Insight into the Mechanism of NO Binding to Ferric Microperoxidase. The Likely Role of Tautomerization to Account for the pH Dependence. Inorg Chem 2021; 60:15948-15967. [PMID: 34476946 DOI: 10.1021/acs.inorgchem.1c00933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
According to the current paradigm, the metal-hydroxo bond in a six-coordinate porphyrin complex is believed to be significantly less reactive in ligand substitution than the analogous metal-aqua bond, due to a much higher strength of the former bond. Here, we report kinetic studies for nitric oxide (NO) binding to a heme-protein model, acetylated microperoxidase-11 (AcMP-11), that challenge this paradigm. In the studied pH range 7.4-12.6, ferric AcMP-11 exists in three acid-base forms, assigned in the literature as [(AcMP-11)FeIII(H2O)(HisH)] (1), [(AcMP-11)FeIII(OH)(HisH)] (2), and [(AcMP-11)FeIII(OH)(His-)] (3). From the pH dependence of the second-order rate constant for NO binding (kon), we determined individual rate constants characterizing forms 1-3, revealing only a ca. 10-fold decrease in the NO binding rate on going from 1 (kon(1) = 3.8 × 106 M-1 s-1) to 2 (kon(2) = 4.0 × 105 M-1 s-1) and the inertness of 3. These findings lead to the abandonment of the dissociatively activated mechanism, in which the reaction rate can be directly correlated with the Fe-OH bond energy, as the mechanistic explanation for the process with regard to 2. The reactivity of 2 is accounted for through the existence of a tautomeric equilibrium between the major [(AcMP-11)FeIII(OH)(HisH)] (2a) and minor [(AcMP-11)FeIII(H2O)(His-)] (2b) species, of which the second one is assigned as the NO binding target due to its labile Fe-OH2 bond. The proposed mechanism is further substantiated by quantum-chemical calculations, which confirmed both the significant labilization of the Fe-OH2 bond in the [(AcMP-11)FeIII(H2O)(His-)] tautomer and the feasibility of the tautomer formation, especially after introducing empirical corrections to the computed relative acidities of the H2O and HisH ligands based on the experimental pKa values. It is shown that the "effective lability" of the axial ligand (OH-/H2O) in 2 may be comparable to the lability of the H2O ligand in 1.
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Affiliation(s)
- Maria Oszajca
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Gabriela Drabik
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Mariusz Radoń
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Alicja Franke
- Department of Chemistry, Ludwigs-Maximilians University, Butenandtstrasse 5-13, 81377 Munich, Germany
| | - Rudi van Eldik
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
- Department of Chemistry and Pharmacy, University of Erlangen-Nuremberg, Egerlandstr. 1, 91058 Erlangen, Germany
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland
| | - Grażyna Stochel
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
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2
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Nowaczyk A, Kowalska M, Nowaczyk J, Grześk G. Carbon Monoxide and Nitric Oxide as Examples of the Youngest Class of Transmitters. Int J Mol Sci 2021; 22:ijms22116029. [PMID: 34199647 PMCID: PMC8199767 DOI: 10.3390/ijms22116029] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/29/2021] [Accepted: 05/31/2021] [Indexed: 12/27/2022] Open
Abstract
The year 2021 is the 100th anniversary of the confirmation of the neurotransmission phenomenon by Otto Loewi. Over the course of the hundred years, about 100 neurotransmitters belonging to many chemical groups have been discovered. In order to celebrate the 100th anniversary of the confirmation of neurotransmitters, we present an overview of the first two endogenous gaseous transmitters i.e., nitric oxide, and carbon monoxide, which are often termed as gasotransmitters.
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Affiliation(s)
- Alicja Nowaczyk
- Department of Organic Chemistry, Faculty of Pharmacy, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 2 dr. A. Jurasza St., 85-094 Bydgoszcz, Poland;
- Correspondence: ; Tel.: +48-52-585-3904
| | - Magdalena Kowalska
- Department of Organic Chemistry, Faculty of Pharmacy, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 2 dr. A. Jurasza St., 85-094 Bydgoszcz, Poland;
| | - Jacek Nowaczyk
- Department of Physical Chemistry and Physicochemistry of Polymers, Faculty of Chemistry, Nicolaus Copernicus University, 7 Gagarina St., 87-100 Toruń, Poland;
| | - Grzegorz Grześk
- Department of Cardiology and Clinical Pharmacology, Faculty of Health Sciences, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, 75 Ujejskiego St., 85-168 Bydgoszcz, Poland;
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3
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Giri B, Kumbhakar S, Kalai Selvan K, Muley A, Maji S. Formation, reactivity, photorelease, and scavenging of NO in ruthenium nitrosyl complexes. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119360] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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4
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Oxidation reactions, coordination chemistry and antibacterial activities with ligand 2-{(diphenylphosphino)methyl}-N,N-dimethylaniline. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2019.121021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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5
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Zink JR, Abucayon EG, Ramuglia AR, Fadamin A, Eilers JE, Richter‐Addo GB, Shaw MJ. Electrochemical Investigation of the Kinetics of Chloride Substitution upon Reduction of [Ru(porphyrin)(NO)Cl] Complexes in Tetrahydrofuran. ChemElectroChem 2017. [DOI: 10.1002/celc.201701001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Jeremy R. Zink
- Department of Chemistry Southern Illinois University Edwardsville Box 1652 Edwardsville, Illinois 62026 USA
- Department of Chemistry and Biochemistry University of Oklahoma 101 Stephenson Parkway Norman, Oklahoma 73019 USA
| | - Erwin G. Abucayon
- Department of Chemistry and Biochemistry University of Oklahoma 101 Stephenson Parkway Norman, Oklahoma 73019 USA
| | - Anthony R. Ramuglia
- Department of Chemistry Southern Illinois University Edwardsville Box 1652 Edwardsville, Illinois 62026 USA
| | - Arghavan Fadamin
- Department of Chemistry Southern Illinois University Edwardsville Box 1652 Edwardsville, Illinois 62026 USA
| | - James E. Eilers
- Department of Chemistry Southern Illinois University Edwardsville Box 1652 Edwardsville, Illinois 62026 USA
| | - George B. Richter‐Addo
- Department of Chemistry and Biochemistry University of Oklahoma 101 Stephenson Parkway Norman, Oklahoma 73019 USA
| | - Michael J. Shaw
- Department of Chemistry Southern Illinois University Edwardsville Box 1652 Edwardsville, Illinois 62026 USA
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6
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Shaban SY, van Eldik R. Reversible release of nitric oxide from an iron(II) nitrosyl complex containing a biomimetic S4N chelate. A facile release of nitric oxide. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1303680] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Shaban Y. Shaban
- Chemistry Department, Faculty of Science, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Rudi van Eldik
- Department of Chemistry and Pharmacy, University of Erlangen-Nuremberg, Erlangen, Germany
- Faculty of Chemistry, Jagiellonian University, Krakow, Poland
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7
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Fujisawa K, Soma S, Kurihara H, Dong HT, Bilodeau M, Lehnert N. A cobalt–nitrosyl complex with a hindered hydrotris(pyrazolyl)borate coligand: detailed electronic structure, and reactivity towards dioxygen. Dalton Trans 2017; 46:13273-13289. [DOI: 10.1039/c7dt01565h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The cobalt–nitrosyl complex [Co(NO)(L3)] is supported by a highly hindered tridentate nitrogen ligand, hydrotris(3-tertiary butyl-5-isopropyl-1-pyrazolyl)borate (denoted as L3−), and shows a linear Co–N–O unit.
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Affiliation(s)
| | - Shoko Soma
- Department of Chemistry
- Ibaraki University
- Mito 310-8512
- Japan
| | | | - Hai T. Dong
- Department of Chemistry and Department of Biophysics
- University of Michigan
- Ann Arbor
- USA
| | - Max Bilodeau
- Department of Chemistry and Department of Biophysics
- University of Michigan
- Ann Arbor
- USA
| | - Nicolai Lehnert
- Department of Chemistry and Department of Biophysics
- University of Michigan
- Ann Arbor
- USA
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8
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Synthesis and properties of polyvinylpyrrolidone films containing iron nitrosyl complexes as nitric oxide (NO) donors with antitumor and antiseptic activities. Russ Chem Bull 2016. [DOI: 10.1007/s11172-015-1050-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Chakraborty S, Reed J, Sage JT, Branagan NC, Petrik ID, Miner KD, Hu MY, Zhao J, Alp EE, Lu Y. Recent advances in biosynthetic modeling of nitric oxide reductases and insights gained from nuclear resonance vibrational and other spectroscopic studies. Inorg Chem 2015; 54:9317-29. [PMID: 26274098 PMCID: PMC4677664 DOI: 10.1021/acs.inorgchem.5b01105] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
This Forum Article focuses on recent
advances in structural and spectroscopic studies of biosynthetic models
of nitric oxide reductases (NORs). NORs are complex metalloenzymes
found in the denitrification pathway of Earth’s nitrogen cycle
where they catalyze the proton-dependent two-electron reduction of
nitric oxide (NO) to nitrous oxide (N2O). While much progress
has been made in biochemical and biophysical studies of native NORs
and their variants, a clear mechanistic understanding of this important
metalloenzyme related to its function is still elusive. We report
herein UV–vis and nuclear resonance vibrational spectroscopy
(NRVS) studies of mononitrosylated intermediates of the NOR reaction
of a biosynthetic model. The ability to selectively substitute metals
at either heme or nonheme metal sites allows the introduction of independent 57Fe probe atoms at either site, as well as allowing the preparation
of analogues of stable reaction intermediates by replacing either
metal with a redox inactive metal. Together with previous structural
and spectroscopic results, we summarize insights gained from studying
these biosynthetic models toward understanding structural features
responsible for the NOR activity and its mechanism. The outlook on
NOR modeling is also discussed, with an emphasis on the design of
models capable of catalytic turnovers designed based on close mimics
of the secondary coordination sphere of native NORs. New insights into nitric oxide reductases (NORs) are obtained. Using
nuclear resonance vibrational spectroscopy, we probe both iron atoms
in mononitrosylated intermediates of the NOR reaction in a biosynthetic
protein model that reveal new insights into the structural and electronic
features responsible for the NOR activity and its likely mechanism.
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Affiliation(s)
| | | | - J Timothy Sage
- Department of Physics, Northeastern University , Boston, Massachusetts 02115, United States
| | - Nicole C Branagan
- Department of Physics, Northeastern University , Boston, Massachusetts 02115, United States
| | | | | | - Michael Y Hu
- Advanced Photon Source, Argonne National Laboratory , Argonne, Illinois 60439, United States
| | - Jiyong Zhao
- Advanced Photon Source, Argonne National Laboratory , Argonne, Illinois 60439, United States
| | - E Ercan Alp
- Advanced Photon Source, Argonne National Laboratory , Argonne, Illinois 60439, United States
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10
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Bari SE, Olabe JA, Slep LD. Three Redox States of Metallonitrosyls in Aqueous Solution. ADVANCES IN INORGANIC CHEMISTRY 2015. [DOI: 10.1016/bs.adioch.2014.10.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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11
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Harrop TC. New Insights on {FeNO}n (n=7, 8) Systems as Enzyme Models and HNO Donors. ADVANCES IN INORGANIC CHEMISTRY 2015. [DOI: 10.1016/bs.adioch.2014.10.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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12
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Pierri AE, Muizzi DA, Ostrowski AD, Ford PC. Photo-Controlled Release of NO and CO with Inorganic and Organometallic Complexes. LUMINESCENT AND PHOTOACTIVE TRANSITION METAL COMPLEXES AS BIOMOLECULAR PROBES AND CELLULAR REAGENTS 2014. [DOI: 10.1007/430_2014_164] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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13
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Andriani KF, Caramori GF, Doro FG, Parreira RLT. Ru–NO and Ru–NO2bonding linkage isomerism in cis-[Ru(NO)(NO)(bpy)2]2+/+complexes – a theoretical insight. Dalton Trans 2014; 43:8792-804. [DOI: 10.1039/c4dt00016a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Calculated energy profile (kcal mol−1) for linkage isomers relative to the ground state structure (GS)1aprior the monoelectronic reduction.
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Affiliation(s)
- Karla Furtado Andriani
- Departamento de Química
- Universidade Federal de Santa Catarina
- Campi Universitário Trindade
- 88040-900 Florianópolis, Brazil
| | - Giovanni Finoto Caramori
- Departamento de Química
- Universidade Federal de Santa Catarina
- Campi Universitário Trindade
- 88040-900 Florianópolis, Brazil
| | - Fábio Gorzoni Doro
- Departamento de Química Geral e Inorgânica
- Universidade Federal da Bahia – UFBA
- Salvador, Brazil
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14
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Aguilar CM, Rocha WR. The nature of the M–NO bond in [M(Imidazole)(PPIX)(L)]q complexes (M=Fe2+, Ru2+; L=NO+, NO and NO−; PPIX=Protoporphyrin IX). Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.08.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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15
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Ghosh K, Kumar S, Kumar R. Donation and scavenging of nitric oxide (NO) by flipping of the denticity of carboxylate ligand in novel ruthenium complexes: Photolability of the coordinated NO. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.04.042] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Holloway LR, Li L. The Preparation, Structural Characteristics, and Physical Chemical Properties of Metal-Nitrosyl Complexes. STRUCTURE AND BONDING 2013; 154:53-98. [PMID: 29398732 PMCID: PMC5792085 DOI: 10.1007/430_2013_101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The preparation and characterization of a representative group of novel non-heme metal nitrosyl complexes that have been synthesized over the last decade are discussed here. Their structures are examined and classified based on metal type, the number of metal centers present, and the type of ligand that is coordinated with the metal. The ligands can be phosphorus, nitrogen, or sulfur based (with a few exceptions) and can vary depending on the presence of chelation, intermolecular forces, or the presence of other ligands. Structural and bonding characteristics are summarized and examples of reactivity regarding nitrosyl ligands are given. Some of the relevant physical chemical properties of these complexes, including IR, EPR, NMR, UV-vis, cyclic voltammetry, and X-ray crystallography are examined.
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Affiliation(s)
- Lauren R Holloway
- Department of Chemistry and Biochemistry, California State University, 1250 Bellflower Boulevard, Long Beach, CA 90840, USA
| | - Lijuan Li
- Department of Chemistry and Biochemistry, California State University, 1250 Bellflower Boulevard, Long Beach, CA 90840, USA
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17
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Wong JL, Sánchez RH, Logan JG, Zarkesh RA, Ziller JW, Heyduk AF. Disulfide reductive elimination from an iron(iii) complex. Chem Sci 2013. [DOI: 10.1039/c3sc22335c] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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18
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Lehnert N, Scheidt WR, Wolf MW. Structure and Bonding in Heme–Nitrosyl Complexes and Implications for Biology. NITROSYL COMPLEXES IN INORGANIC CHEMISTRY, BIOCHEMISTRY AND MEDICINE II 2013. [DOI: 10.1007/430_2013_92] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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19
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Franke A, van Eldik R. Factors That Determine the Mechanism of NO Activation by Metal Complexes of Biological and Environmental Relevance. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201201111] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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20
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Electronic structure and spectra of nitrosyl complexes with cobalt and manganese porphyrins. Struct Chem 2012. [DOI: 10.1007/s11224-012-0053-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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21
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Structure and properties of iron nitrosyl complexes with functionalized sulfur-containing ligands. Russ Chem Bull 2012. [DOI: 10.1007/s11172-011-0192-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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22
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Toledo JC, Augusto O. Connecting the Chemical and Biological Properties of Nitric Oxide. Chem Res Toxicol 2012; 25:975-89. [DOI: 10.1021/tx300042g] [Citation(s) in RCA: 196] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Jose Carlos Toledo
- Departamento de Química,
Faculdade de Filosofia, Ciências e Letras de Ribeirão
Preto, Universidade de São Paulo, CEP 14040-901, Ribeirão
Preto, SP, Brazil
| | - Ohara Augusto
- Departamento
de Bioquímica,
Instituto de Química, Universidade de São Paulo, Universidade
de São Paulo, Caixa Postal 26077, CEP 05513-970, São
Paulo, SP, Brazil
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23
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Zheng W, Wu S, Zhao S, Geng Y, Jin J, Su Z, Fu Q. Carbonyl Amine/Schiff Base Ligands in Manganese Complexes: Theoretical Study on the Mechanism, Capability of NO Release. Inorg Chem 2012; 51:3972-80. [DOI: 10.1021/ic2011953] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Weili Zheng
- Institute of Functional Material Chemistry, Faculty
of Chemistry, Northeast Normal University, Changchun 130024, Jilin, People’s Republic of China
| | - Shuixing Wu
- Institute of Functional Material Chemistry, Faculty
of Chemistry, Northeast Normal University, Changchun 130024, Jilin, People’s Republic of China
| | - Shanshan Zhao
- Institute of Functional Material Chemistry, Faculty
of Chemistry, Northeast Normal University, Changchun 130024, Jilin, People’s Republic of China
| | - Yun Geng
- Institute of Functional Material Chemistry, Faculty
of Chemistry, Northeast Normal University, Changchun 130024, Jilin, People’s Republic of China
| | - Junling Jin
- Institute of Functional Material Chemistry, Faculty
of Chemistry, Northeast Normal University, Changchun 130024, Jilin, People’s Republic of China
| | - Zhongmin Su
- Institute of Functional Material Chemistry, Faculty
of Chemistry, Northeast Normal University, Changchun 130024, Jilin, People’s Republic of China
| | - Qiang Fu
- Institute of Functional Material Chemistry, Faculty
of Chemistry, Northeast Normal University, Changchun 130024, Jilin, People’s Republic of China
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24
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Martin R, Cao R, Esteva AM, Montforts FP. Interaction of nitric oxide with Ru(II) complexes of deuteroporphyrindimethylester derivatives. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424609000188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A new ruthenium(II) porphyrin disulphide derivative, [ Ru ( Pds )( CO )], was obtained from ruthenium(II)(carbonyl)deuteroporphyrin(IX), [ Ru ( DPdc )( CO )] and cystamine. The interaction of this complex with nitric oxide was studied spectrophotometrically and a bathochromic shift of the charge transfer band and considerable change in the α and β bands of the complex were observed. According to the IR spectrum, the product of this interaction is [ Ru ( DmDP )( NO +)( NO 2-)]. [ Ru ( Pds )( CO )] was then self-assembled on polycrystalline gold and characterized by X-ray photoelectron spectroscopy. [ Ru ( Pds )( CO )] was also self-assembled on gold electrode beads and its interaction with nitric oxide in aqueous solution was studied by cyclic voltammetry. A shift in the ruthenium redox process and a new irreversible cathodic peak at -0.59 V were observed, both indicating coordination of NO .
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Affiliation(s)
- Rudy Martin
- Laboratory of Bioinorganic Chemistry, Faculty of Chemistry, University of Havana, La Havana 10400, Cuba
| | - Roberto Cao
- Laboratory of Bioinorganic Chemistry, Faculty of Chemistry, University of Havana, La Havana 10400, Cuba
| | - Ana M. Esteva
- Department of Analytical Chemistry, Faculty of Chemistry, University of Havana, La Havana 10400, Cuba
| | - Franz-Peter Montforts
- Institute of Organic Chemistry, University of Bremen, Leobener Strasse NW 2, 28359, Bremen, Germany
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25
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Chowdhury AD, De P, Mobin SM, Lahiri GK. Influence of nitrosyl coordination on the binding mode of quinaldate in selective ruthenium frameworks. Electronic structure and reactivity aspects. RSC Adv 2012. [DOI: 10.1039/c2ra00953f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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26
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Man WL, W. Y. Lam W, Ng SM, Y. K. Tsang W, Lau TC. Oxygen Atom Transfer from a trans-Dioxoruthenium(VI) Complex to Nitric Oxide. Chemistry 2011; 18:138-44. [DOI: 10.1002/chem.201102297] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Indexed: 11/11/2022]
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27
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Berto TC, Hoffman MB, Murata Y, Landenberger KB, Alp EE, Zhao J, Lehnert N. Structural and electronic characterization of non-heme Fe(II)-nitrosyls as biomimetic models of the Fe(B) center of bacterial nitric oxide reductase. J Am Chem Soc 2011; 133:16714-7. [PMID: 21630658 DOI: 10.1021/ja111693f] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The detoxification of nitric oxide (NO) by bacterial NO reductase (NorBC) has gained much attention as this reaction provides a paradigm as to how NO can be detoxified anaerobically in cells. However, a clear mechanistic picture of how the heme/non-heme active site of NorBC activates NO is lacking, mostly as a result of insufficient knowledge about the properties of the non-heme iron(II)-NO adduct. Here we report the first biomimetic model complexes for this species that closely resemble the coordination environment found in the protein, using the ligands BMPA-Pr and TPA. The systematic investigation of these compounds allowed us to gain key insight into the electronic structure and geometric properties of high-spin non-heme iron(II)-NO adducts. In particular, we show how small changes in the ligand environment of iron could be used by NorBC to greatly modulate the properties, and hence, the reactivity of this species.
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Affiliation(s)
- Timothy C Berto
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055, USA
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28
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29
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Pellegrino J, Hübner R, Doctorovich F, Kaim W. Spectroelectrochemical Evidence for the Nitrosyl Redox Siblings NO
+
, NO
.
, and NO
−
Coordinated to a Strongly Electron‐Accepting Fe
II
Porphyrin: DFT Calculations Suggest the Presence of High‐Spin States after Reduction of the Fe
II
–NO
−
Complex. Chemistry 2011; 17:7868-74. [DOI: 10.1002/chem.201003516] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Indexed: 10/18/2022]
Affiliation(s)
- Juan Pellegrino
- Departamento de Química Inorgánica, Analítica, y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires. INQUIMAE‐CONICET, Ciudad Universitaria, Pab. 2, C1428EHA Buenos Aires (Argentina), Fax: +54 11 4576‐3341
| | - Ralph Hübner
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70550 Stuttgart (Germany), Fax: (+49) 711 685 64165
| | - Fabio Doctorovich
- Departamento de Química Inorgánica, Analítica, y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires. INQUIMAE‐CONICET, Ciudad Universitaria, Pab. 2, C1428EHA Buenos Aires (Argentina), Fax: +54 11 4576‐3341
| | - Wolfgang Kaim
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70550 Stuttgart (Germany), Fax: (+49) 711 685 64165
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Stasicka Z. Transition metal complexes as solar photocatalysts in the environment. ADVANCES IN INORGANIC CHEMISTRY 2011. [DOI: 10.1016/b978-0-12-385904-4.00004-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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31
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Lutterman DA, Lazinski-Melanson LA, Asher Y, Johnston DH, Gallucci JC, Turro C. Effect of intraligand π-delocalization on the photophysical properties of two new Ru(II) complexes. J Photochem Photobiol A Chem 2011. [DOI: 10.1016/j.jphotochem.2010.09.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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32
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Shaban SY, van Eldik R. Structural and mechanistic information on the nitrosation of model Fe(ii) complexes containing a biomimetic S4N chelate. Dalton Trans 2011; 40:287-94. [DOI: 10.1039/c0dt01038c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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De P, Maji S, Dutta Chowdhury A, Mobin SM, Kumar Mondal T, Paretzki A, Lahiri GK. Ruthenium nitrosyl complexes with 1,4,7-trithiacyclononane and 2,2′-bipyridine (bpy) or 2-phenylazopyridine (pap) coligands. Electronic structure and reactivity aspects. Dalton Trans 2011; 40:12527-39. [DOI: 10.1039/c1dt10761e] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Lamberti C, Zecchina A, Groppo E, Bordiga S. Probing the surfaces of heterogeneous catalysts by in situ IR spectroscopy. Chem Soc Rev 2010; 39:4951-5001. [PMID: 21038053 DOI: 10.1039/c0cs00117a] [Citation(s) in RCA: 358] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
This critical review describes the reactivity of heterogeneous catalysts from the point of view of four simple, but essential for Chemistry, molecules (namely dihydrogen, carbon monoxide, nitrogen monoxide and ethylene) that are considered as probes or as reactants in combination with "in situ" controlled temperature and pressure Infrared spectroscopy. The fundamental properties of H(2), CO, NO and C(2)H(4) are shortly described in order to justify their different behaviour in respect of isolated sites in different environments, extended surfaces, clusters, crystalline or amorphous materials. The description is given by considering some "key studies" and trying to evidence similarities and differences among surfaces and probes (572 references).
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Affiliation(s)
- Carlo Lamberti
- Department of Inorganic, Physical and Materials Chemistry, NIS Centre of Excellence, University of Turin. Via P. Giuria 7, 10125 Torino, Italy
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35
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De P, Mondal TK, Mobin SM, Sarkar B, Lahiri GK. {Ru–NO}6 and {Ru–NO}7 configurations in [Ru(trpy)(tmp)(NO)]n+ (trpy=2,2′:6′,2′′-terpyridine, tmp=3,4,7,8-tetramethyl-1,10-phenanthroline): An experimental and theoretical investigation. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.03.074] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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36
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Lucas HR, Meyer GJ, Karlin KD. Carbon monoxide and nitrogen monoxide ligand dynamics in synthetic heme and heme-copper complex systems. J Am Chem Soc 2009; 131:13924-5. [PMID: 19736941 DOI: 10.1021/ja906172c] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Intermolecular nitrogen monoxide (*NO) and carbon monoxide (CO) transfer from iron to copper and back, a phenomenon not previously observed, has been accomplished by employing transient-absorbance laser flash photolysis methods. A 1:1 heme/copper component system consisting of a six-coordinate ferrous species, F(8)Fe(II)(CO)(DCIM) or F(8)Fe(II)(NO)(thf) [F(8) = tetrakis(2,6-difluorophenyl)porphyrinate(2-); DCIM = 1,5-dicyclohexylimidazole; thf = tetrahydrofuran], and two ligand-copper(I) complexes, one with tridentate [(Bz)L = (benzyl)bis(2-pyridylmethyl)amine] and one with tetradentate coordination [(Py)L = tris(2-pyridylmethyl)amine], was utilized. The results suggest a lower affinity for NO versus CO binding to copper(I) and a higher rate for NO versus CO binding to heme. In fact, the latter event has been observed in cytochrome c oxidase aa(3).
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Affiliation(s)
- Heather R Lucas
- Department of Chemistry, The Johns Hopkins University, Baltimore, Maryland 21218, USA
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37
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Hoffman-Luca CG, Eroy-Reveles AA, Alvarenga J, Mascharak PK. Syntheses, structures, and photochemistry of manganese nitrosyls derived from designed Schiff base ligands: potential NO donors that can be activated by near-infrared light. Inorg Chem 2009; 48:9104-11. [PMID: 19722518 PMCID: PMC4826278 DOI: 10.1021/ic900604j] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Two manganese nitrosyls, namely, [Mn(SBPy(3))(NO)](ClO(4))(2) (1) and [Mn(SBPy(2)Q)(NO)](ClO(4))(2) (2), have been synthesized by using designed pentadentate Schiff base ligands N,N-bis(2-pyridylmethyl)amine-N-ethyl-2-pyridine-2-aldimine (SBPy(3)) and N,N-bis(2-pyridyl methyl)amine-N-ethyl-2-quinoline-2-aldimine (SBPy(2)Q). Reaction of NO(g) with [Mn(SBPy(3))(MeOH)](ClO(4))(2) and [Mn(SBPy(2)Q)(EtOH)](ClO(4))(2) in MeCN affords 1 and 2, respectively, in good yields. Narrow-width peaks in the (1)H NMR spectra and strong nu(NO) at 1773 cm(-1) (of 1) and 1759 cm(-1) (of 2) confirm a strongly coupled {low-spin Mn(II)-NO*}formulation for both these {Mn-NO}(6) nitrosyls. In MeCN, 1 exhibits two strong absorption bands with lambda(max) at 500 and 720 nm. These bands red shift to 550 and 785 nm in case of 2 because of substitution of the pyridyl-imine moiety of SBPy(3) with quinolyl-imine moiety in the SBPy(2)Q ligand frame. Exposure of solutions 1 and 2 to near-infrared (NIR) light (780 nm, 5 mW) results in rapid bleaching of the orange and fuchsia solutions, and free NO is detected in the solutions by an NO-sensitive electrode. The high quantum yield values (Phi) of 1 (0.580 +/- 0.010, lambda(irr) = 550 nm, MeCN) and 2 (0.434 +/- 0.010, lambda(irr) = 550 nm, MeCN) and in particular their sensitivity to NIR light of 800-950 nm range strongly suggest that these designed manganese nitrosyls could be used as NIR light-triggered NO donors.
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Affiliation(s)
- C Gianna Hoffman-Luca
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, USA
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38
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Bakac A, Schouten M, Johnson A, Song W, Pestovsky O, Szajna-Fuller E. Oxidation of a Water-Soluble Phosphine and Some Spectroscopic Probes with Nitric Oxide and Nitrous Acid in Aqueous Solutions. Inorg Chem 2009; 48:6979-85. [DOI: 10.1021/ic900688g] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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39
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De P, Sarkar B, Maji S, Das AK, Bulak E, Mobin SM, Kaim W, Lahiri GK. Stabilization of {RuNO}6and {RuNO}7States in [RuII(trpy)(bik)(NO)]n+{trpy = 2,2′:6′,2″-terpyridine, bik = 2,2′-bis(1-methylimidazolyl) ketone} - Formation, Reactivity, and Photorelease of Metal-Bound Nitrosyl. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900021] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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40
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Shestakov AF, Shul’ga YM, Emel’yanova NS, Sanina NA, Rudneva TN, Aldoshin SM, Ikorskii VN, Ovcharenko VI. Experimental and theoretical study of the arrangement, electronic structure and properties of neutral paramagnetic binuclear nitrosyl iron complexes with azaheterocyclic thyolyls having ‘S–C–N type’ coordination of bridging ligands. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.11.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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41
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de Oliveira ARM, da Fonseca P, Curti C, da Silva RS, Bonato PS. In vitro metabolism study of a new nitrosyl ruthenium complex [Ru(NH.NHq)(terpy)NO]3+ nitric oxide donor using rat microsomes. Nitric Oxide 2009; 21:14-9. [PMID: 19362161 DOI: 10.1016/j.niox.2009.03.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2009] [Revised: 03/03/2009] [Accepted: 03/27/2009] [Indexed: 11/28/2022]
Abstract
A new nitrosyl ruthenium complex [Ru(NH.NHq)(terpy)NO](3+) nitric oxide donor was recently developed and due to its excellent vasodilator activity, it has been considered as a potential drug candidate. Drug metabolism is one of the main parameters that should be evaluated in the early drug development, so the biotransformation of this complex by rat hepatic microsomes was investigated. In order to perform the biotransformation study, a simple, sensitive and selective HPLC method was developed and carefully validated. The parameters evaluated in the validation procedure were: linearity, recovery, precision, accuracy, selectivity and stability. Except for the stability study, all the parameters evaluated presented values below the recommended by FDA guidelines. The stability study showed a time-dependent degradation profile. After method validation, the biotransformation study was accomplished and the kinetic parameters were determined. The biotransformation study obeyed the Michaelis-Menten kinetics. The V(max) and K(m) were, respectively, 0.1625+/-0.010 micromol/mg protein/min and 79.97+/-11.52 microM. These results indicate that the nitrosyl complex is metabolized by CYP450.
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Affiliation(s)
- Anderson Rodrigo Moraes de Oliveira
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
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42
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Wang J, Schopfer MP, Sarjeant AAN, Karlin KD. Heme-copper assembly mediated reductive coupling of nitrogen monoxide (*NO). J Am Chem Soc 2009; 131:450-1. [PMID: 19099478 DOI: 10.1021/ja8084324] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A iron-dinitrosyl species ((6)L)Fe(NO)(2) (2), generated from nitrogen monoxide (*NO) binding to its related iron(II)-mononitrosyl complex ((6)L)Fe(NO) (1), efficiently effects reductive coupling of two *NO molecules to release nitrous oxide (N(2)O), when Cu(+) ion and 2 equiv acid are added; the heme/Cu product is [((6)L)Fe(III)...Cu(II)(D)](3+) (D = H(2)O or MeCN). In a control experiment where only ((6)L)Fe(NO)(2) (2) is exposed to 2 equiv acid, no UV-vis change is observed; upon warming, *NO((g)) is released and ((6)L)Fe(NO) is reformed. The copper ion complex within the (6)L ligand framework is required for the *NO coupling chemistry. In a further control experiment Cu(+) ion is added to ((6)L)Fe(NO)(2) without acid present, [((6)L)Fe(NO)...Cu(II)(NO(2)(-))](+) is obtained, with the amount of N(2)O((g)) released fitting with copper(I) ion promoted disproportionation chemistry, 3*NO + ligand-Cu(I) --> N(2)O + ligand-Cu(II)(NO(2)(-)). The chemical system described represents a (stoichiometric) functional model for heme/Cu protein nitric oxide reductase activity.
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Affiliation(s)
- Jun Wang
- Department of Chemistry, The Johns Hopkins University, Baltimore, Maryland 21218, USA
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43
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Sanina NA, Syrtsova LA, Chudinova ES, Shkondina NI, Rudneva TN, Kotel’nikov AI, Aldoshin SM. Regularities in the stabilization by hemoglobin of binuclear iron complexes [Fe2(μ-N—C—SR)2(NO)4] containing benzimidazolylthiol and benzothiazolylthiol ligands. Russ Chem Bull 2009. [DOI: 10.1007/s11172-009-0057-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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44
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Birkmann B, Owens BT, Bandyopadhyay S, Wu G, Ford PC. Synthesis of a nitro complex of RuIII(salen): Unexpected aromatic ring nitration by a nitrite salt. J Inorg Biochem 2009; 103:237-42. [DOI: 10.1016/j.jinorgbio.2008.10.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2008] [Revised: 10/03/2008] [Accepted: 10/10/2008] [Indexed: 11/26/2022]
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45
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Praneeth VKK, Paulat F, Berto TC, George SD, Näther C, Sulok CD, Lehnert N. Electronic Structure of Six-Coordinate Iron(III)−Porphyrin NO Adducts: The Elusive Iron(III)−NO(radical) State and Its Influence on the Properties of These Complexes. J Am Chem Soc 2008; 130:15288-303. [PMID: 18942830 DOI: 10.1021/ja801860u] [Citation(s) in RCA: 128] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- V. K. K. Praneeth
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, Stanford Synchrotron Radiation Laboratory, SLAC, Stanford University, Stanford, California 94309, and Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Olshausenstrasse 40, D-24098 Kiel, Germany
| | - Florian Paulat
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, Stanford Synchrotron Radiation Laboratory, SLAC, Stanford University, Stanford, California 94309, and Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Olshausenstrasse 40, D-24098 Kiel, Germany
| | - Timothy C. Berto
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, Stanford Synchrotron Radiation Laboratory, SLAC, Stanford University, Stanford, California 94309, and Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Olshausenstrasse 40, D-24098 Kiel, Germany
| | - Serena DeBeer George
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, Stanford Synchrotron Radiation Laboratory, SLAC, Stanford University, Stanford, California 94309, and Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Olshausenstrasse 40, D-24098 Kiel, Germany
| | - Christian Näther
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, Stanford Synchrotron Radiation Laboratory, SLAC, Stanford University, Stanford, California 94309, and Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Olshausenstrasse 40, D-24098 Kiel, Germany
| | - Corinne D. Sulok
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, Stanford Synchrotron Radiation Laboratory, SLAC, Stanford University, Stanford, California 94309, and Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Olshausenstrasse 40, D-24098 Kiel, Germany
| | - Nicolai Lehnert
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, Stanford Synchrotron Radiation Laboratory, SLAC, Stanford University, Stanford, California 94309, and Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Olshausenstrasse 40, D-24098 Kiel, Germany
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46
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Rose MJ, Mascharak PK. Photoactive Ruthenium Nitrosyls: Effects of Light and Potential Application as NO Donors. Coord Chem Rev 2008; 252:2093-2114. [PMID: 21052477 PMCID: PMC2967751 DOI: 10.1016/j.ccr.2007.11.011] [Citation(s) in RCA: 251] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Michael J. Rose
- Department of Chemistry & Biochemistry, University of California Santa Cruz, Santa Cruz, CA 95064, USA
| | - Pradip K. Mascharak
- Department of Chemistry & Biochemistry, University of California Santa Cruz, Santa Cruz, CA 95064, USA
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47
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Chiavarino B, Crestoni ME, Fornarini S, Rovira C. Unravelling the intrinsic features of NO binding to iron(II)- and iron(III)-hemes. Inorg Chem 2008; 47:7792-801. [PMID: 18681420 DOI: 10.1021/ic800953w] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Electrospray ionization of appropriate precursors is used to deliver [Fe (III)-heme] (+) and [Fe (II)-hemeH] (+) ions as naked species in the gas phase where their ion chemistry has been examined by Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry. In the naked, four-coordinate [Fe (II)-hemeH] (+) and [Fe (III)-heme] (+) ions, the intrinsic reactivity of iron(II)- and iron(III)-hemes is revealed free from any influence due to axial ligand, counterion, or solvent effects. Ligand (L) addition and ligand transfer equilibria with a series of selected neutrals are attained when [Fe (II)-hemeH] (+), corresponding to protonated Fe (II)-heme, is allowed to react in the FT-ICR cell. A Heme Cation Basicity (HCB) ladder for the various ligands toward [Fe (II)-hemeH] (+), corresponding to -Delta G degrees for the process [Fe (II)-hemeH] (+) + L --> [Fe (II)-hemeH(L)] (+) and named HCB (II), can thus be established. The so-obtained HCB (II) values are compared with the corresponding HCB (III) values for [Fe (III)-heme] (+). In spite of pronounced differences displayed by various ligands, NO shows a quite similar HCB of about 67 kJ mol (-1) at 300 K toward both ions, estimated to correspond to a binding energy of 124 kJ mol (-1). Density Functional Theory (DFT) computations confirm the experimental results, yielding very similar values of NO binding energies to [Fe (II)-hemeH] (+) and [Fe (III)-heme] (+), equal to 140 and 144 kJ mol (-1), respectively. The kinetic study of the NO association reaction supports the equilibrium HCB data and reveals that the two species share very close rate constant values both for the forward and for the reverse reaction. These gas phase results diverge markedly from the kinetics and thermodynamic behavior of NO binding to iron(II)- and iron(III)-heme proteins and model complexes in solution. The requisite of either a very labile or a vacant coordination site on iron for a facile addition of NO to occur, suggested to explain the bias for typically five-coordinate iron(II) species in solution, is fully supported by the present work.
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Affiliation(s)
- Barbara Chiavarino
- Dipartimento di Chimica e Tecnologia del Farmaco, Universita di Roma "La Sapienza", P.le A. Moro 5, I-00185 Roma, Italy
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Zhou W, Zhang Y, Abe M, Uosaki K, Osawa M, Sasaki Y, Ye S. Surface coordination of nitric oxide to a self-assembled monolayer of a triruthenium cluster: an in situ infrared spectroscopic study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:8027-8035. [PMID: 18590289 DOI: 10.1021/la800374s] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Coordination of nitric oxide (NO) to a self-assembled monolayer (SAM) of a triruthenium (Ru(3)) cluster, [Ru(3)(micro(3)-O)(micro-CH(3)COO)(6)(CO)(L(1))(L(2))] (0) (L(1) = [(NC(5)H(4))CH(2)NHC(O)(CH(2))(10)S-](2), L(2) = 4-methylpyridine), on a gold electrode surface has been studied by electrochemical and in situ infrared (IR) spectroscopic measurements. Ligand substitution reaction of NO for carbon monoxide (CO) ligands in the SAM strongly depends on the oxidation state of the terminal Ru(3) cluster. NO can be introduced into the Ru(3) cluster in the SAM with a high yield after one-electron oxidation of the Ru(3) core to a (III,III,III) oxidation state, while no coordination reaction occurs at the initial oxidation state (II,III,III) of the Ru(3) cluster. The kinetics of the NO coordination and desorption processes is also evaluated by time-resolved in situ IR spectroscopy. Finally, we demonstrate that the SAM with NO/CO randomly mixed ligands at a desired ratio can be constructed on the gold surface by tuning a suitable oxidation state of the Ru 3 cluster under electrochemical control.
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Affiliation(s)
- Wei Zhou
- Catalysis Research Center, Hokkaido University, Sapporo 001-0021, Division of Chemistry, Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan
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49
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Singh P, Das AK, Sarkar B, Niemeyer M, Roncaroli F, Olabe JA, Fiedler J, Záliš S, Kaim W. Redox Properties of Ruthenium Nitrosyl Porphyrin Complexes with Different Axial Ligation: Structural, Spectroelectrochemical (IR, UV−Visible, and EPR), and Theoretical Studies. Inorg Chem 2008; 47:7106-13. [DOI: 10.1021/ic702371t] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Priti Singh
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany, Departamento de Química Inorgánica, Analítica y Química Física and INQUIMAE, Facultad de Ciencias Exactas y Naturales, UBA, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Republic of Argentina, and J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic
| | - Atanu Kumar Das
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany, Departamento de Química Inorgánica, Analítica y Química Física and INQUIMAE, Facultad de Ciencias Exactas y Naturales, UBA, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Republic of Argentina, and J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic
| | - Biprajit Sarkar
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany, Departamento de Química Inorgánica, Analítica y Química Física and INQUIMAE, Facultad de Ciencias Exactas y Naturales, UBA, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Republic of Argentina, and J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic
| | - Mark Niemeyer
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany, Departamento de Química Inorgánica, Analítica y Química Física and INQUIMAE, Facultad de Ciencias Exactas y Naturales, UBA, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Republic of Argentina, and J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic
| | - Federico Roncaroli
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany, Departamento de Química Inorgánica, Analítica y Química Física and INQUIMAE, Facultad de Ciencias Exactas y Naturales, UBA, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Republic of Argentina, and J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic
| | - José A. Olabe
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany, Departamento de Química Inorgánica, Analítica y Química Física and INQUIMAE, Facultad de Ciencias Exactas y Naturales, UBA, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Republic of Argentina, and J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic
| | - Jan Fiedler
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany, Departamento de Química Inorgánica, Analítica y Química Física and INQUIMAE, Facultad de Ciencias Exactas y Naturales, UBA, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Republic of Argentina, and J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic
| | - Stanislav Záliš
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany, Departamento de Química Inorgánica, Analítica y Química Física and INQUIMAE, Facultad de Ciencias Exactas y Naturales, UBA, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Republic of Argentina, and J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic
| | - Wolfgang Kaim
- Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany, Departamento de Química Inorgánica, Analítica y Química Física and INQUIMAE, Facultad de Ciencias Exactas y Naturales, UBA, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Republic of Argentina, and J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic
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Photochemical production of nitric oxide from a nitrosyl phthalocyanine ruthenium complex by irradiation with light in the phototherapeutic window. INORG CHEM COMMUN 2008. [DOI: 10.1016/j.inoche.2008.03.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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