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Jiang M, Zhao XM, Jiang ZS, Wang GX, Zhang DW. Protein tyrosine nitration in atherosclerotic endothelial dysfunction. Clin Chim Acta 2022; 529:34-41. [PMID: 35149004 DOI: 10.1016/j.cca.2022.02.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 02/02/2022] [Accepted: 02/07/2022] [Indexed: 11/29/2022]
Abstract
Accumulation of reactive oxygen species (ROS) can induce both protein tyrosine nitration and endothelial dysfunction in atherosclerosis. Endothelial dysfunction refers to impaired endothelium-dependent vasorelaxation that can be triggered by an imbalance in nitric oxide (NO) production and consumption. ROS reacts with NO to generate peroxynitrite, decreasing NO bioavailability. Peroxynitrite also promotes protein tyrosine nitration in vivo that can affect protein structure and function and further damage endothelial function. In this review, we discuss the process of protein tyrosine nitration, increased expression of nitrated proteins in cardiovascular disease and their association with endothelial dysfunction, and the interference of tyrosine nitration with antioxidants and the protective role in endothelial dysfunction. These may lead us to the conception that protein tyrosine nitration may be one of the causes of endothelial dysfunction, and help us gain information about the mechanism of endothelial dysfunction underlying atherosclerosis.
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Affiliation(s)
- Miao Jiang
- Institute of Cardiovascular Disease, Department of Pathophysiology, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic disease, Postdoctoral Research Station of Basic Medicine, University of South China, Hengyang, 421001, China; Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering Collage of Chongqing University, Chongqing, 400030, China
| | - Xiao-Mei Zhao
- College of Public Health, University of South China, Hengyang, 421001, Hunan, China
| | - Zhi-Sheng Jiang
- Institute of Cardiovascular Disease, Department of Pathophysiology, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic disease, Postdoctoral Research Station of Basic Medicine, University of South China, Hengyang, 421001, China.
| | - Gui-Xue Wang
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering Collage of Chongqing University, Chongqing, 400030, China.
| | - Da-Wei Zhang
- Group on the Molecular and Cell Biology of Lipids, Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
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2
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3-Nitrotyrosine and related derivatives in proteins: precursors, radical intermediates and impact in function. Essays Biochem 2020; 64:111-133. [PMID: 32016371 DOI: 10.1042/ebc20190052] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/30/2019] [Accepted: 01/03/2020] [Indexed: 12/22/2022]
Abstract
Oxidative post-translational modification of proteins by molecular oxygen (O2)- and nitric oxide (•NO)-derived reactive species is a usual process that occurs in mammalian tissues under both physiological and pathological conditions and can exert either regulatory or cytotoxic effects. Although the side chain of several amino acids is prone to experience oxidative modifications, tyrosine residues are one of the preferred targets of one-electron oxidants, given the ability of their phenolic side chain to undergo reversible one-electron oxidation to the relatively stable tyrosyl radical. Naturally occurring as reversible catalytic intermediates at the active site of a variety of enzymes, tyrosyl radicals can also lead to the formation of several stable oxidative products through radical-radical reactions, as is the case of 3-nitrotyrosine (NO2Tyr). The formation of NO2Tyr mainly occurs through the fast reaction between the tyrosyl radical and nitrogen dioxide (•NO2). One of the key endogenous nitrating agents is peroxynitrite (ONOO-), the product of the reaction of superoxide radical (O2•-) with •NO, but ONOO--independent mechanisms of nitration have been also disclosed. This chemical modification notably affects the physicochemical properties of tyrosine residues and because of this, it can have a remarkable impact on protein structure and function, both in vitro and in vivo. Although low amounts of NO2Tyr are detected under basal conditions, significantly increased levels are found at pathological states related with an overproduction of reactive species, such as cardiovascular and neurodegenerative diseases, inflammation and aging. While NO2Tyr is a well-established stable oxidative stress biomarker and a good predictor of disease progression, its role as a pathogenic mediator has been laboriously defined for just a small number of nitrated proteins and awaits further studies.
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3
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Regulation of Vascular Function and Inflammation via Cross Talk of Reactive Oxygen and Nitrogen Species from Mitochondria or NADPH Oxidase-Implications for Diabetes Progression. Int J Mol Sci 2020; 21:ijms21103405. [PMID: 32408480 PMCID: PMC7279344 DOI: 10.3390/ijms21103405] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/06/2020] [Accepted: 05/07/2020] [Indexed: 02/07/2023] Open
Abstract
Oxidative stress plays a key role for the development of cardiovascular, metabolic, and neurodegenerative disease. This concept has been proven by using the approach of genetic deletion of reactive oxygen and nitrogen species (RONS) producing, pro-oxidant enzymes as well as by the overexpression of RONS detoxifying, antioxidant enzymes leading to an amelioration of the severity of diseases. Vice versa, the development and progression of cardiovascular diseases is aggravated by overexpression of RONS producing enzymes as well as deletion of RONS detoxifying enzymes. We have previously identified cross talk mechanisms between different sources of RONS, which can amplify the oxidative stress-mediated damage. Here, the pathways and potential mechanisms leading to this cross talk are analyzed in detail and highlighted by selected examples from the current literature and own data including hypoxia, angiotensin II (AT-II)-induced hypertension, nitrate tolerance, aging, and others. The general concept of redox-based activation of RONS sources via “kindling radicals” and enzyme-specific “redox switches” as well as the interaction with redox-sensitive inflammatory pathways are discussed. Here, we present evidence for the existence of such cross talk mechanisms in the setting of diabetes and critically assess their contribution to the severity of diabetic complications.
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4
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Vujacic-Mirski K, Bruns K, Kalinovic S, Oelze M, Kröller-Schön S, Steven S, Mojovic M, Korac B, Münzel T, Daiber A. Development of an Analytical Assay for Electrochemical Detection and Quantification of Protein-Bound 3-Nitrotyrosine in Biological Samples and Comparison with Classical, Antibody-Based Methods. Antioxidants (Basel) 2020; 9:E388. [PMID: 32384768 PMCID: PMC7278855 DOI: 10.3390/antiox9050388] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 04/30/2020] [Accepted: 05/02/2020] [Indexed: 01/12/2023] Open
Abstract
Reactive oxygen and nitrogen species (RONS) cause oxidative damage, which is associated with endothelial dysfunction and cardiovascular disease, but may also contribute to redox signaling. Therefore, their precise detection is important for the evaluation of disease mechanisms. Here, we compared three different methods for the detection of 3-nitrotyrosine (3-NT), a marker of nitro-oxidative stress, in biological samples. Nitrated proteins were generated by incubation with peroxynitrite or 3-morpholino sydnonimine (Sin-1) and subjected to total hydrolysis using pronase, a mixture of different proteases. The 3-NT was then separated by high performance liquid chromatography (HPLC) and quantified by electrochemical detection (ECD, CoulArray) and compared to classical methods, namely enzyme-linked immunosorbent assay (ELISA) and dot blot analysis using specific 3-NT antibodies. Calibration curves for authentic 3-NT (detection limit 10 nM) and a concentration-response pattern for 3-NT obtained from digested nitrated bovine serum albumin (BSA) were highly linear over a wide 3-NT concentration range. Also, ex vivo nitration of protein from heart, isolated mitochondria, and serum/plasma could be quantified using the HPLC/ECD method and was confirmed by LC-MS/MS. Of note, nitro-oxidative damage of mitochondria results in increased superoxide (O2•-) formation rates (measured by dihydroethidium-based HPLC assay), pointing to a self-amplification mechanism of oxidative stress. Based on our ex vivo data, the CoulArray quantification method for 3-NT seems to have some advantages regarding sensitivity and selectivity. Establishing a reliable automated HPLC assay for the routine quantification of 3-NT in biological samples of cell culture, of animal and human origin seems to be more sophisticated than expected.
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Affiliation(s)
- Ksenija Vujacic-Mirski
- Center for Cardiology, Department of Cardiology 1–Molecular Cardiology, University Medical Center, 55131 Mainz, Germany; (K.V.-M.); (S.K.); (M.O.); (S.K.-S.); (S.S.); (T.M.)
| | - Kai Bruns
- Institute of Clinical Chemistry and Laboratory Medicine, Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany;
| | - Sanela Kalinovic
- Center for Cardiology, Department of Cardiology 1–Molecular Cardiology, University Medical Center, 55131 Mainz, Germany; (K.V.-M.); (S.K.); (M.O.); (S.K.-S.); (S.S.); (T.M.)
| | - Matthias Oelze
- Center for Cardiology, Department of Cardiology 1–Molecular Cardiology, University Medical Center, 55131 Mainz, Germany; (K.V.-M.); (S.K.); (M.O.); (S.K.-S.); (S.S.); (T.M.)
| | - Swenja Kröller-Schön
- Center for Cardiology, Department of Cardiology 1–Molecular Cardiology, University Medical Center, 55131 Mainz, Germany; (K.V.-M.); (S.K.); (M.O.); (S.K.-S.); (S.S.); (T.M.)
| | - Sebastian Steven
- Center for Cardiology, Department of Cardiology 1–Molecular Cardiology, University Medical Center, 55131 Mainz, Germany; (K.V.-M.); (S.K.); (M.O.); (S.K.-S.); (S.S.); (T.M.)
| | - Milos Mojovic
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia;
| | - Bato Korac
- Institute for Biological Research “Sinisa Stankovic”—National Institute of Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia;
| | - Thomas Münzel
- Center for Cardiology, Department of Cardiology 1–Molecular Cardiology, University Medical Center, 55131 Mainz, Germany; (K.V.-M.); (S.K.); (M.O.); (S.K.-S.); (S.S.); (T.M.)
- Partner Site Rhine-Main, German Center for Cardiovascular Research (DZHK), Langenbeckstr. 1, 55131 Mainz, Germany
| | - Andreas Daiber
- Center for Cardiology, Department of Cardiology 1–Molecular Cardiology, University Medical Center, 55131 Mainz, Germany; (K.V.-M.); (S.K.); (M.O.); (S.K.-S.); (S.S.); (T.M.)
- Partner Site Rhine-Main, German Center for Cardiovascular Research (DZHK), Langenbeckstr. 1, 55131 Mainz, Germany
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Moldogazieva NT, Mokhosoev IM, Mel'nikova TI, Zavadskiy SP, Kuz'menko AN, Terentiev AA. Dual Character of Reactive Oxygen, Nitrogen, and Halogen Species: Endogenous Sources, Interconversions and Neutralization. BIOCHEMISTRY (MOSCOW) 2020; 85:S56-S78. [PMID: 32087054 DOI: 10.1134/s0006297920140047] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Oxidative stress resulting from accumulation of reactive oxygen, nitrogen, and halogen species (ROS, RNS, and RHS, respectively) causes the damage of cells and biomolecules. However, over the long evolutionary time, living organisms have developed the mechanisms for adaptation to oxidative stress conditions including the activity of the antioxidant system (AOS), which maintains low intracellular levels of RONS (ROS and RNS) and RHS. Moreover, living organisms have adapted to use low concentrations of these electrophiles for the regulation of cell functions through the reversible post-translational chemical modifications of redox-sensitive amino acid residues in intracellular effectors of signal transduction pathways (protein kinases and protein phosphatases), transcription factors, etc. An important fine-tuning mechanism that ensures involvement of RONS and RHS in the regulation of physiological processes is interconversion between different reactive species. This review focuses on the complex networks of interacting RONS and RHS types and their endogenous sources, such as NOX family of NADPH oxidases, complexes I and III of the mitochondrial electron transport chain, NO synthases, cytochrome P450-containing monooxygenase system, xanthine oxidoreductase, and myeloperoxidases. We highlight that kinetic parameters of reactions involving RONS and RHS determine the effects of these reactive species on cell functions. We also describe the functioning of enzymatic and non-enzymatic AOS components and the mechanisms of RONS and RHS scavenging under physiological conditions. We believe that analysis of interactions between RONS and relationships between different endogenous sources of these compounds will contribute to better understanding of their role in the maintenance of cell redox homeostasis as well as initiation and progression of diseases.
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Affiliation(s)
- N T Moldogazieva
- Sechenov First Moscow State Medical University, Moscow, 119991, Russia.
| | - I M Mokhosoev
- Pirogov Russian National Research Medical University, Moscow, 117997, Russia.
| | - T I Mel'nikova
- Sechenov First Moscow State Medical University, Moscow, 119991, Russia
| | - S P Zavadskiy
- Sechenov First Moscow State Medical University, Moscow, 119991, Russia
| | - A N Kuz'menko
- Sechenov First Moscow State Medical University, Moscow, 119991, Russia
| | - A A Terentiev
- Pirogov Russian National Research Medical University, Moscow, 117997, Russia
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6
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Begara-Morales JC, Sánchez-Calvo B, Gómez-Rodríguez MV, Chaki M, Valderrama R, Mata-Pérez C, López-Jaramillo J, Corpas FJ, Barroso JB. Short-Term Low Temperature Induces Nitro-Oxidative Stress that Deregulates the NADP-Malic Enzyme Function by Tyrosine Nitration in Arabidopsis thaliana. Antioxidants (Basel) 2019; 8:antiox8100448. [PMID: 31581524 PMCID: PMC6827146 DOI: 10.3390/antiox8100448] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/12/2019] [Accepted: 09/20/2019] [Indexed: 12/31/2022] Open
Abstract
Low temperature (LT) negatively affects plant growth and development via the alteration of the metabolism of reactive oxygen and nitrogen species (ROS and RNS). Among RNS, tyrosine nitration, the addition of an NO2 group to a tyrosine residue, can modulate reduced nicotinamide-dinucleotide phosphate (NADPH)-generating systems and, therefore, can alter the levels of NADPH, a key cofactor in cellular redox homeostasis. NADPH also acts as an indispensable electron donor within a wide range of enzymatic reactions, biosynthetic pathways, and detoxification processes, which could affect plant viability. To extend our knowledge about the regulation of this key cofactor by this nitric oxide (NO)-related post-translational modification, we analyzed the effect of tyrosine nitration on another NADPH-generating enzyme, the NADP-malic enzyme (NADP-ME), under LT stress. In Arabidopsis thaliana seedlings exposed to short-term LT (4 °C for 48 h), a 50% growth reduction accompanied by an increase in the content of superoxide, nitric oxide, and peroxynitrite, in addition to diminished cytosolic NADP-ME activity, were found. In vitro assays confirmed that peroxynitrite inhibits cytosolic NADP-ME2 activity due to tyrosine nitration. The mass spectrometric analysis of nitrated NADP-ME2 enabled us to determine that Tyr-73 was exclusively nitrated to 3-nitrotyrosine by peroxynitrite. The in silico analysis of the Arabidopsis NADP-ME2 protein sequence suggests that Tyr73 nitration could disrupt the interactions between the specific amino acids responsible for protein structure stability. In conclusion, the present data show that short-term LT stress affects the metabolism of ROS and RNS, which appears to negatively modulate the activity of cytosolic NADP-ME through the tyrosine nitration process.
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Affiliation(s)
- Juan C Begara-Morales
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Department of Experimental Biology, Center for Advanced Studies in Olive Grove and Olive Oils, Faculty of Experimental Sciences, University of Jaén, Campus "Las Lagunillas", s/n, E-23071 Jaén, Spain.
| | - Beatriz Sánchez-Calvo
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Department of Experimental Biology, Center for Advanced Studies in Olive Grove and Olive Oils, Faculty of Experimental Sciences, University of Jaén, Campus "Las Lagunillas", s/n, E-23071 Jaén, Spain.
| | - María V Gómez-Rodríguez
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Department of Experimental Biology, Center for Advanced Studies in Olive Grove and Olive Oils, Faculty of Experimental Sciences, University of Jaén, Campus "Las Lagunillas", s/n, E-23071 Jaén, Spain.
| | - Mounira Chaki
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Department of Experimental Biology, Center for Advanced Studies in Olive Grove and Olive Oils, Faculty of Experimental Sciences, University of Jaén, Campus "Las Lagunillas", s/n, E-23071 Jaén, Spain.
| | - Raquel Valderrama
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Department of Experimental Biology, Center for Advanced Studies in Olive Grove and Olive Oils, Faculty of Experimental Sciences, University of Jaén, Campus "Las Lagunillas", s/n, E-23071 Jaén, Spain.
| | - Capilla Mata-Pérez
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Department of Experimental Biology, Center for Advanced Studies in Olive Grove and Olive Oils, Faculty of Experimental Sciences, University of Jaén, Campus "Las Lagunillas", s/n, E-23071 Jaén, Spain.
| | - Javier López-Jaramillo
- Institute of Biotechnology, Department of Organic Chemistry, Faculty of Sciences, University of Granada, E-18071 Granada, Spain.
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals, and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, C/ Profesor Albareda 1, E-18080 Granada, Spain.
| | - Juan B Barroso
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Department of Experimental Biology, Center for Advanced Studies in Olive Grove and Olive Oils, Faculty of Experimental Sciences, University of Jaén, Campus "Las Lagunillas", s/n, E-23071 Jaén, Spain.
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7
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Knight AR, Taylor EL, Lukaszewski R, Jensen KT, Jones HE, Carré JE, Isupov MN, Littlechild JA, Bailey SJ, Brewer E, McDonald TJ, Pitt AR, Spickett CM, Winyard PG. A high-sensitivity electrochemiluminescence-based ELISA for the measurement of the oxidative stress biomarker, 3-nitrotyrosine, in human blood serum and cells. Free Radic Biol Med 2018; 120:246-254. [PMID: 29555590 DOI: 10.1016/j.freeradbiomed.2018.03.026] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 03/13/2018] [Accepted: 03/14/2018] [Indexed: 02/02/2023]
Abstract
The generation of 3-nitrotyrosine, within proteins, is a post-translational modification resulting from oxidative or nitrative stress. It has been suggested that this modification could be used as a biomarker for inflammatory diseases. Despite the superiority of mass spectrometry-based determinations of nitrotyrosine, in a high-throughput clinical setting the measurement of nitrotyrosine by an enzyme-linked immunosorbent assay (ELISA) is likely to be more cost-effective. ELISAs offer an alternative means to detect nitrotyrosine, but many commercially available ELISAs are insufficiently sensitive to detect nitrotyrosine in healthy human serum. Here, we report the development, validation and clinical application of a novel electrochemiluminescence-based ELISA for nitrotyrosine which provides superior sensitivity (e.g. a 50-fold increase in sensitivity compared with one of the tested commercial colorimetric ELISAs). This nitrotyrosine ELISA has the following characteristics: a lower limit of quantitation of 0.04 nM nitrated albumin equivalents; intra- and inter-assay coefficients of variation of 6.5% and 11.3%, respectively; a mean recovery of 106 ± 3% and a mean linearity of 0.998 ± 0.001. Far higher nitration levels were measured in normal human blood cell populations when compared to plasma. Mass spectrometry was used to validate the new ELISA method. The analysis of the same set of chemically modified albumin samples using the ELISA method and mass spectrometry showed good agreement for the relative levels of nitration present in each sample. The assay was applied to serum samples from patients undergoing elective surgery which induces the human inflammatory response. Matched samples were collected before and one day after surgery. An increase in nitration was detected following surgery (median (IQR): 0.59 (0.00-1.34) and 0.97 (0.00-1.70) nitrotyrosine (fmol of nitrated albumin equivalents/mg protein) for pre- and post-surgery respectively. The reported assay is suitable for nitrotyrosine determination in patient serum samples, and may also be applicable as a means to determine oxidative stress in primary and cultured cell populations.
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Affiliation(s)
- Annie R Knight
- University of Exeter Medical School, St Luke's Campus, Magdalen Road, Exeter EX1 2LU, UK
| | - Emma L Taylor
- University of Exeter Medical School, St Luke's Campus, Magdalen Road, Exeter EX1 2LU, UK
| | | | - Karina Tveen Jensen
- School of Life & Health Sciences, Aston University, Aston Triangle, Birmingham B4 7ET, UK
| | - Helen E Jones
- CBR Division, Dstl, Porton Down, Salisbury SP4 0JQ, UK
| | - Jane E Carré
- University of Exeter Medical School, St Luke's Campus, Magdalen Road, Exeter EX1 2LU, UK
| | - Michail N Isupov
- Henry Wellcome Building for Biocatalysis, Biosciences, University of Exeter, Stocker Road, Exeter EX4 4QD, UK
| | - Jennifer A Littlechild
- Henry Wellcome Building for Biocatalysis, Biosciences, University of Exeter, Stocker Road, Exeter EX4 4QD, UK
| | - Stephen J Bailey
- Sport and Health Sciences, Richards Building, University of Exeter, St Luke's Campus, Magdalen Road, Exeter EX1 2LU, UK
| | - Emily Brewer
- Clinical Chemistry, Royal Devon & Exeter NHS Foundation Trust, Barrack Road, Exeter EX2 5DW, UK
| | - Timothy J McDonald
- Clinical Chemistry, Royal Devon & Exeter NHS Foundation Trust, Barrack Road, Exeter EX2 5DW, UK
| | - Andrew R Pitt
- School of Life & Health Sciences, Aston University, Aston Triangle, Birmingham B4 7ET, UK
| | - Corinne M Spickett
- School of Life & Health Sciences, Aston University, Aston Triangle, Birmingham B4 7ET, UK
| | - Paul G Winyard
- University of Exeter Medical School, St Luke's Campus, Magdalen Road, Exeter EX1 2LU, UK.
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8
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Moldogazieva NT, Mokhosoev IM, Feldman NB, Lutsenko SV. ROS and RNS signalling: adaptive redox switches through oxidative/nitrosative protein modifications. Free Radic Res 2018; 52:507-543. [PMID: 29589770 DOI: 10.1080/10715762.2018.1457217] [Citation(s) in RCA: 177] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Over the last decade, a dual character of cell response to oxidative stress, eustress versus distress, has become increasingly recognized. A growing body of evidence indicates that under physiological conditions, low concentrations of reactive oxygen and nitrogen species (RONS) maintained by the activity of endogenous antioxidant system (AOS) allow reversible oxidative/nitrosative modifications of key redox-sensitive residues in regulatory proteins. The reversibility of redox modifications such as Cys S-sulphenylation/S-glutathionylation/S-nitrosylation/S-persulphidation and disulphide bond formation, or Tyr nitration, which occur through electrophilic attack of RONS to nucleophilic groups in amino acid residues provides redox switches in the activities of signalling proteins. Key requirement for the involvement of the redox modifications in RONS signalling including ROS-MAPK, ROS-PI3K/Akt, and RNS-TNF-α/NF-kB signalling is their specificity provided by a residue microenvironment and reaction kinetics. Glutathione, glutathione peroxidases, peroxiredoxins, thioredoxin, glutathione reductases, and glutaredoxins modulate RONS level and cell signalling, while some of the modulators (glutathione, glutathione peroxidases and peroxiredoxins) are themselves targets for redox modifications. Additionally, gene expression, activities of transcription factors, and epigenetic pathways are also under redox regulation. The present review focuses on RONS sources (NADPH-oxidases, mitochondrial electron-transportation chain (ETC), nitric oxide synthase (NOS), etc.), and their cross-talks, which influence reversible redox modifications of proteins as physiological phenomenon attained by living cells during the evolution to control cell signalling in the oxygen-enriched environment. We discussed recent advances in investigation of mechanisms of protein redox modifications and adaptive redox switches such as MAPK/PI3K/PTEN, Nrf2/Keap1, and NF-κB/IκB, powerful regulators of numerous physiological processes, also implicated in various diseases.
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Affiliation(s)
- N T Moldogazieva
- a Department of Biotechnology, I.M. Sechenov First Moscow State Medical University (Sechenov University) , Moscow , Russia
| | - I M Mokhosoev
- a Department of Biotechnology, I.M. Sechenov First Moscow State Medical University (Sechenov University) , Moscow , Russia
| | - N B Feldman
- a Department of Biotechnology, I.M. Sechenov First Moscow State Medical University (Sechenov University) , Moscow , Russia
| | - S V Lutsenko
- a Department of Biotechnology, I.M. Sechenov First Moscow State Medical University (Sechenov University) , Moscow , Russia
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9
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Rodríguez-Ruiz M, Mateos RM, Codesido V, Corpas FJ, Palma JM. Characterization of the galactono-1,4-lactone dehydrogenase from pepper fruits and its modulation in the ascorbate biosynthesis. Role of nitric oxide. Redox Biol 2017; 12:171-181. [PMID: 28242561 PMCID: PMC5328913 DOI: 10.1016/j.redox.2017.02.009] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/15/2017] [Accepted: 02/12/2017] [Indexed: 12/23/2022] Open
Abstract
Pepper fruit is one of the highest vitamin C sources of plant origin for our diet. In plants, ascorbic acid is mainly synthesized through the L-galactose pathway, being the L-galactono-1,4-lactone dehydrogenase (GalLDH) the last step. Using pepper fruits, the full GalLDH gene was cloned and the protein molecular characterization accomplished. GalLDH protein sequence (586 residues) showed a 37 amino acids signal peptide at the N-terminus, characteristic of mitochondria. The hydrophobic analysis of the mature protein displayed one transmembrane helix comprising 20 amino acids at the N-terminus. By using a polyclonal antibody raised against a GalLDH internal sequence and immunoblotting analysis, a 56kDa polypeptide cross-reacted with pepper fruit samples. Using leaves, flowers, stems and fruits, the expression of GalLDH by qRT-PCR and the enzyme activity were analyzed, and results indicate that GalLDH is a key player in the physiology of pepper plants, being possibly involved in the processes which undertake the transport of ascorbate among different organs. We also report that an NO (nitric oxide)-enriched atmosphere enhanced ascorbate content in pepper fruits about 40% parallel to increased GalLDH gene expression and enzyme activity. This is the first report on the stimulating effect of NO treatment on the vitamin C concentration in plants. Accordingly, the modulation by NO of GalLDH was addressed. In vitro enzymatic assays of GalLDH were performed in the presence of SIN-1 (peroxynitrite donor) and S-nitrosoglutahione (NO donor). Combined results of in vivo NO treatment and in vitro assays showed that NO provoked the regulation of GalLDH at transcriptional and post-transcriptional levels, but not post-translational modifications through nitration or S-nitrosylation events promoted by reactive nitrogen species (RNS) took place. These results suggest that this modulation point of the ascorbate biosynthesis could be potentially used for biotechnological purposes to increase the vitamin C levels in pepper fruits.
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Affiliation(s)
- Marta Rodríguez-Ruiz
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Dept. Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, C/ Profesor Albareda, 1, 18008 Granada, Spain.
| | - Rosa M Mateos
- University Hospital Puerta del Mar, Avenida Ana de Viya, 21, Cádiz 11009, Spain.
| | - Verónica Codesido
- Phytoplant Research S.L, Rabanales 21 - The Science and Technology Park of Córdoba, C/ Astrónoma Cecilia Payne, Edificio Centauro, módulo B-1, 14014 Córdoba, Spain.
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Dept. Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, C/ Profesor Albareda, 1, 18008 Granada, Spain.
| | - José M Palma
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Dept. Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, C/ Profesor Albareda, 1, 18008 Granada, Spain.
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10
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Ramdial K, Franco MC, Estevez AG. Cellular mechanisms of peroxynitrite-induced neuronal death. Brain Res Bull 2017; 133:4-11. [DOI: 10.1016/j.brainresbull.2017.05.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 04/21/2017] [Accepted: 05/12/2017] [Indexed: 12/13/2022]
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Lang J, Maréchal A, Couture M, Santolini J. Reaction Intermediates and Molecular Mechanism of Peroxynitrite Activation by NO Synthases. Biophys J 2017; 111:2099-2109. [PMID: 27851935 DOI: 10.1016/j.bpj.2016.05.056] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 05/26/2016] [Accepted: 05/31/2016] [Indexed: 11/26/2022] Open
Abstract
The activation of the peroxynitrite anion (PN) by hemoproteins, which leads to its detoxification or, on the contrary to the enhancement of its cytotoxic activity, is a reaction of physiological importance that is still poorly understood. It has been known for some years that the reaction of hemoproteins, notably cytochrome P450, with PN leads to the buildup of an intermediate species with a Soret band at ∼435 nm (I435). The nature of this intermediate is, however, debated. On the one hand, I435 has been presented as a compound II species that can be photoactivated to compound I. A competing alternative involves the assignment of I435 to a ferric-nitrosyl species. Similar to cytochromes P450, the buildup of I435 occurs in nitric oxide synthases (NOSs) upon their reaction with excess PN. Interestingly, the NOS isoforms vary in their capacity to detoxify/activate PN, although they all show the buildup of I435. To better understand PN activation/detoxification by heme proteins, a definitive assignment of I435 is needed. Here we used a combination of fine kinetic analysis under specific conditions (pH, PN concentrations, and PN/NOSs ratios) to probe the formation of I435. These studies revealed that I435 is not formed upon homolytic cleavage of the O-O bond of PN, but instead arises from side reactions associated with excess PN. Characterization of I435 by resonance Raman spectroscopy allowed its identification as a ferric iron-nitrosyl complex. Our study indicates that the model used so far to depict PN interactions with hemo-thiolate proteins, i.e., leading to the formation and accumulation of compound II, needs to be reconsidered.
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Affiliation(s)
- Jérôme Lang
- Laboratory of Oxidative Stress and Detoxification, iBiTec-S/I2BC, UMR 9198, CEA-Centre National de la Recherche Scientifique Université Paris Sud, CEA Saclay, Gif-sur-Yvette Cedex, France; Department of Biochemistry, Université Laval, Laval, Québec, Canada
| | - Amandine Maréchal
- Laboratory of Oxidative Stress and Detoxification, iBiTec-S/I2BC, UMR 9198, CEA-Centre National de la Recherche Scientifique Université Paris Sud, CEA Saclay, Gif-sur-Yvette Cedex, France
| | - Manon Couture
- Department of Biochemistry, Université Laval, Laval, Québec, Canada
| | - Jérôme Santolini
- Laboratory of Oxidative Stress and Detoxification, iBiTec-S/I2BC, UMR 9198, CEA-Centre National de la Recherche Scientifique Université Paris Sud, CEA Saclay, Gif-sur-Yvette Cedex, France.
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12
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Mikhed Y, Bruns K, Schildknecht S, Jörg M, Dib M, Oelze M, Lackner KJ, Münzel T, Ullrich V, Daiber A. Formation of 2-nitrophenol from salicylaldehyde as a suitable test for low peroxynitrite fluxes. Redox Biol 2015; 7:39-47. [PMID: 26629950 PMCID: PMC4683390 DOI: 10.1016/j.redox.2015.11.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Revised: 11/18/2015] [Accepted: 11/19/2015] [Indexed: 01/13/2023] Open
Abstract
There has been some dispute regarding reaction products formed at physiological peroxynitrite fluxes in the nanomolar range with phenolic molecules, when used to predict the behavior of protein-bound aromatic amino acids like tyrosine. Previous data showed that at nanomolar fluxes of peroxynitrite, nitration of these phenolic compounds was outcompeted by dimerization (e.g. biphenols or dityrosine). Using 3-morpholino sydnonimine (Sin-1), we created low fluxes of peroxynitrite in our reaction set-up to demonstrate that salicylaldehyde displays unique features in the detection of physiological fluxes of peroxynitrite, yielding detectable nitration but only minor dimerization products. By means of HPLC analysis and detection at 380 nm we could identify the expected nitration products 3- and 5-nitrosalicylaldehyde, but also novel nitrated products. Using mass spectrometry, we also identified 2-nitrophenol and a not fully characterized nitrated dimerization product. The formation of 2-nitrophenol could proceed either by primary generation of a phenoxy radical, followed by addition of the NO2-radical to the various resonance structures, or by addition of the peroxynitrite anion to the polarized carbonyl group with subsequent fragmentation of the adduct (as seen with carbon dioxide). Interestingly, we observed almost no 3- and 5-nitrosalicylic acid products and only minor dimerization reaction. Our results disagree with the previous general assumption that nitration of low molecular weight phenolic compounds is always outcompeted by dimerization at nanomolar peroxynitrite fluxes and highlight unique features of salicylaldehyde as a probe for physiological concentrations of peroxynitrite. There are no specific probes for peroxynitrite formation in vivo. Salicylaldehyde reacts with peroxynitrite to form the product 2-nitrophenol. Only high/supraphysiological •NO or peroxidase/H2O2/NO2─ levels yield 2-nitrophenol. Salicylaldehyde is suitable for detection of nanomolar fluxes of peroxynitrite.
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Affiliation(s)
- Yuliya Mikhed
- Center of Cardiology, Laboratory of Molecular Cardiology, Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Kai Bruns
- Institute of Clinical Chemistry and Laboratory Medicine, Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | | | - Michael Jörg
- Department of Biology, University of Konstanz, Konstanz, Germany
| | - Mobin Dib
- Center of Cardiology, Laboratory of Molecular Cardiology, Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Matthias Oelze
- Center of Cardiology, Laboratory of Molecular Cardiology, Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Karl J Lackner
- Institute of Clinical Chemistry and Laboratory Medicine, Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Thomas Münzel
- Center of Cardiology, Laboratory of Molecular Cardiology, Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Volker Ullrich
- Department of Biology, University of Konstanz, Konstanz, Germany
| | - Andreas Daiber
- Center of Cardiology, Laboratory of Molecular Cardiology, Medical Center of the Johannes Gutenberg University, Mainz, Germany.
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13
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Chaki M, Álvarez de Morales P, Ruiz C, Begara-Morales JC, Barroso JB, Corpas FJ, Palma JM. Ripening of pepper (Capsicum annuum) fruit is characterized by an enhancement of protein tyrosine nitration. ANNALS OF BOTANY 2015; 116:637-47. [PMID: 25814060 PMCID: PMC4577987 DOI: 10.1093/aob/mcv016] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 12/12/2014] [Accepted: 01/05/2015] [Indexed: 05/18/2023]
Abstract
BACKGROUND AND AIMS Pepper (Capsicum annuum, Solanaceae) fruits are consumed worldwide and are of great economic importance. In most species ripening is characterized by important visual and metabolic changes, the latter including emission of volatile organic compounds associated with respiration, destruction of chlorophylls, synthesis of new pigments (red/yellow carotenoids plus xanthophylls and anthocyanins), formation of pectins and protein synthesis. The involvement of nitric oxide (NO) in fruit ripening has been established, but more work is needed to detail the metabolic networks involving NO and other reactive nitrogen species (RNS) in the process. It has been reported that RNS can mediate post-translational modifications of proteins, which can modulate physiological processes through mechanisms of cellular signalling. This study therefore examined the potential role of NO in nitration of tyrosine during the ripening of California sweet pepper. METHODS The NO content of green and red pepper fruit was determined spectrofluorometrically. Fruits at the breaking point between green and red coloration were incubated in the presence of NO for 1 h and then left to ripen for 3 d. Profiles of nitrated proteins were determined using an antibody against nitro-tyrosine (NO2-Tyr), and profiles of nitrosothiols were determined by confocal laser scanning microscopy. Nitrated proteins were identified by 2-D electrophoresis and MALDI-TOF/TOF analysis. KEY RESULTS Treatment with NO delayed the ripening of fruit. An enhancement of nitrosothiols and nitroproteins was observed in fruit during ripening, and this was reversed by the addition of exogenous NO gas. Six nitrated proteins were identified and were characterized as being involved in redox, protein, carbohydrate and oxidative metabolism, and in glutamate biosynthesis. Catalase was the most abundant nitrated protein found in both green and red fruit. CONCLUSIONS The RNS profile reported here indicates that ripening of pepper fruit is characterized by an enhancement of S-nitrosothiols and protein tyrosine nitration. The nitrated proteins identified have important functions in photosynthesis, generation of NADPH, proteolysis, amino acid biosynthesis and oxidative metabolism. The decrease of catalase in red fruit implies a lower capacity to scavenge H2O2, which would promote lipid peroxidation, as has already been reported in ripe pepper fruit.
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Affiliation(s)
- Mounira Chaki
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Apartado 419, 18008 Granada, Spain and
| | - Paz Álvarez de Morales
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Apartado 419, 18008 Granada, Spain and
| | - Carmelo Ruiz
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Apartado 419, 18008 Granada, Spain and
| | - Juan C Begara-Morales
- Group of Biochemistry and Cell Signaling in Nitric Oxide. Department of Biochemistry and Molecular Biology, University of Jaén, 23071 Jaén, Spain
| | - Juan B Barroso
- Group of Biochemistry and Cell Signaling in Nitric Oxide. Department of Biochemistry and Molecular Biology, University of Jaén, 23071 Jaén, Spain
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Apartado 419, 18008 Granada, Spain and
| | - José M Palma
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Apartado 419, 18008 Granada, Spain and
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14
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Begara-Morales JC, Sánchez-Calvo B, Chaki M, Mata-Pérez C, Valderrama R, Padilla MN, López-Jaramillo J, Luque F, Corpas FJ, Barroso JB. Differential molecular response of monodehydroascorbate reductase and glutathione reductase by nitration and S-nitrosylation. JOURNAL OF EXPERIMENTAL BOTANY 2015; 66:5983-96. [PMID: 26116026 PMCID: PMC4566986 DOI: 10.1093/jxb/erv306] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The ascorbate-glutathione cycle is a metabolic pathway that detoxifies hydrogen peroxide and involves enzymatic and non-enzymatic antioxidants. Proteomic studies have shown that some enzymes in this cycle such as ascorbate peroxidase (APX), monodehydroascorbate reductase (MDAR), and glutathione reductase (GR) are potential targets for post-translational modifications (PMTs) mediated by nitric oxide-derived molecules. Using purified recombinant pea peroxisomal MDAR and cytosolic and chloroplastic GR enzymes produced in Escherichia coli, the effects of peroxynitrite (ONOO(-)) and S-nitrosoglutathione (GSNO) which are known to mediate protein nitration and S-nitrosylation processes, respectively, were analysed. Although ONOO(-) and GSNO inhibit peroxisomal MDAR activity, chloroplastic and cytosolic GR were not affected by these molecules. Mass spectrometric analysis of the nitrated MDAR revealed that Tyr213, Try292, and Tyr345 were exclusively nitrated to 3-nitrotyrosine by ONOO(-). The location of these residues in the structure of pea peroxisomal MDAR reveals that Tyr345 is found at 3.3 Å of His313 which is involved in the NADP-binding site. Site-directed mutagenesis confirmed Tyr345 as the primary site of nitration responsible for the inhibition of MDAR activity by ONOO(-). These results provide new insights into the molecular regulation of MDAR which is deactivated by nitration and S-nitrosylation. However, GR was not affected by ONOO(-) or GSNO, suggesting the existence of a mechanism to conserve redox status by maintaining the level of reduced GSH. Under a nitro-oxidative stress induced by salinity (150mM NaCl), MDAR expression (mRNA, protein, and enzyme activity levels) was increased, probably to compensate the inhibitory effects of S-nitrosylation and nitration on the enzyme. The present data show the modulation of the antioxidative response of key enzymes in the ascorbate-glutathione cycle by nitric oxide (NO)-PTMs, thus indicating the close involvement of NO and reactive oxygen species metabolism in antioxidant defence against nitro-oxidative stress situations in plants.
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Affiliation(s)
- Juan C Begara-Morales
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Biochemistry and Molecular Biology Division, Department of Experimental Biology, Faculty of Experimental Sciences, University of Jaén, Campus 'Las Lagunillas', E-23071 Jaén, Spain
| | - Beatriz Sánchez-Calvo
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Biochemistry and Molecular Biology Division, Department of Experimental Biology, Faculty of Experimental Sciences, University of Jaén, Campus 'Las Lagunillas', E-23071 Jaén, Spain
| | - Mounira Chaki
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Biochemistry and Molecular Biology Division, Department of Experimental Biology, Faculty of Experimental Sciences, University of Jaén, Campus 'Las Lagunillas', E-23071 Jaén, Spain
| | - Capilla Mata-Pérez
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Biochemistry and Molecular Biology Division, Department of Experimental Biology, Faculty of Experimental Sciences, University of Jaén, Campus 'Las Lagunillas', E-23071 Jaén, Spain
| | - Raquel Valderrama
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Biochemistry and Molecular Biology Division, Department of Experimental Biology, Faculty of Experimental Sciences, University of Jaén, Campus 'Las Lagunillas', E-23071 Jaén, Spain
| | - María N Padilla
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Biochemistry and Molecular Biology Division, Department of Experimental Biology, Faculty of Experimental Sciences, University of Jaén, Campus 'Las Lagunillas', E-23071 Jaén, Spain
| | | | - Francisco Luque
- Center for Advanced Studies in Olives and Olive Oil, University of Jaén, Campus 'Las Lagunillas', E-23071 Jaén, Spain
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Apartado 419, E-18080 Granada, Spain
| | - Juan B Barroso
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Biochemistry and Molecular Biology Division, Department of Experimental Biology, Faculty of Experimental Sciences, University of Jaén, Campus 'Las Lagunillas', E-23071 Jaén, Spain Center for Advanced Studies in Olives and Olive Oil, University of Jaén, Campus 'Las Lagunillas', E-23071 Jaén, Spain
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15
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Begara-Morales JC, Sánchez-Calvo B, Chaki M, Valderrama R, Mata-Pérez C, López-Jaramillo J, Padilla MN, Carreras A, Corpas FJ, Barroso JB. Dual regulation of cytosolic ascorbate peroxidase (APX) by tyrosine nitration and S-nitrosylation. JOURNAL OF EXPERIMENTAL BOTANY 2014; 65:527-38. [PMID: 24288182 PMCID: PMC3904709 DOI: 10.1093/jxb/ert396] [Citation(s) in RCA: 182] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Post-translational modifications (PTMs) mediated by nitric oxide (NO)-derived molecules have become a new area of research, as they can modulate the function of target proteins. Proteomic data have shown that ascorbate peroxidase (APX) is one of the potential targets of PTMs mediated by NO-derived molecules. Using recombinant pea cytosolic APX, the impact of peroxynitrite (ONOO-) and S-nitrosoglutathione (GSNO), which are known to mediate protein nitration and S-nitrosylation processes, respectively, was analysed. While peroxynitrite inhibits APX activity, GSNO enhances its enzymatic activity. Mass spectrometric analysis of the nitrated APX enabled the determination that Tyr5 and Tyr235 were exclusively nitrated to 3-nitrotyrosine by peroxynitrite. Residue Cys32 was identified by the biotin switch method as S-nitrosylated. The location of these residues on the structure of pea APX reveals that Tyr235 is found at the bottom of the pocket where the haem group is enclosed, whereas Cys32 is at the ascorbate binding site. Pea plants grown under saline (150 mM NaCl) stress showed an enhancement of both APX activity and S-nitrosylated APX, as well as an increase of H2O2, NO, and S-nitrosothiol (SNO) content that can justify the induction of the APX activity. The results provide new insight into the molecular mechanism of the regulation of APX which can be both inactivated by irreversible nitration and activated by reversible S-nitrosylation.
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Affiliation(s)
- Juan C. Begara-Morales
- Área de Bioquímica y Biología Molecular, Departamento de Biología Experimental, Facultad de Ciencias Experimentales, Ed. B3. Campus Universitario “Las Lagunillas” s/n, Universidad de Jaén, E-23071 Jaén, Spain
| | - Beatriz Sánchez-Calvo
- Área de Bioquímica y Biología Molecular, Departamento de Biología Experimental, Facultad de Ciencias Experimentales, Ed. B3. Campus Universitario “Las Lagunillas” s/n, Universidad de Jaén, E-23071 Jaén, Spain
| | - Mounira Chaki
- Área de Bioquímica y Biología Molecular, Departamento de Biología Experimental, Facultad de Ciencias Experimentales, Ed. B3. Campus Universitario “Las Lagunillas” s/n, Universidad de Jaén, E-23071 Jaén, Spain
| | - Raquel Valderrama
- Área de Bioquímica y Biología Molecular, Departamento de Biología Experimental, Facultad de Ciencias Experimentales, Ed. B3. Campus Universitario “Las Lagunillas” s/n, Universidad de Jaén, E-23071 Jaén, Spain
| | - Capilla Mata-Pérez
- Área de Bioquímica y Biología Molecular, Departamento de Biología Experimental, Facultad de Ciencias Experimentales, Ed. B3. Campus Universitario “Las Lagunillas” s/n, Universidad de Jaén, E-23071 Jaén, Spain
| | | | - María N. Padilla
- Área de Bioquímica y Biología Molecular, Departamento de Biología Experimental, Facultad de Ciencias Experimentales, Ed. B3. Campus Universitario “Las Lagunillas” s/n, Universidad de Jaén, E-23071 Jaén, Spain
| | - Alfonso Carreras
- Área de Bioquímica y Biología Molecular, Departamento de Biología Experimental, Facultad de Ciencias Experimentales, Ed. B3. Campus Universitario “Las Lagunillas” s/n, Universidad de Jaén, E-23071 Jaén, Spain
| | - Francisco J. Corpas
- Departamento de Bioquímica, Biología Celular y Molecular de Plantas, Estación Experimental del Zaidín (EEZ), Consejo Superior de Investigaciones Científicas, E-18080 Granada, Spain
| | - Juan B. Barroso
- Área de Bioquímica y Biología Molecular, Departamento de Biología Experimental, Facultad de Ciencias Experimentales, Ed. B3. Campus Universitario “Las Lagunillas” s/n, Universidad de Jaén, E-23071 Jaén, Spain
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16
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Corpas FJ, Leterrier M, Begara-Morales JC, Valderrama R, Chaki M, López-Jaramillo J, Luque F, Palma JM, Padilla MN, Sánchez-Calvo B, Mata-Pérez C, Barroso JB. Inhibition of peroxisomal hydroxypyruvate reductase (HPR1) by tyrosine nitration. BIOCHIMICA ET BIOPHYSICA ACTA 2013; 1830:4981-9. [PMID: 23860243 DOI: 10.1016/j.bbagen.2013.07.002] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 07/04/2013] [Accepted: 07/08/2013] [Indexed: 01/13/2023]
Abstract
BACKGROUND Protein tyrosine nitration is a post-translational modification (PTM) mediated by nitric oxide-derived molecules. Peroxisomes are oxidative organelles in which the presence of nitric oxide (NO) has been reported. METHODS We studied peroxisomal nitroproteome of pea leaves by high-performance liquid chromatography with tandem mass spectrometry (LC-MS/MS) and proteomic approaches. RESULTS Proteomic analysis of peroxisomes from pea leaves detected a total of four nitro-tyrosine immunopositive proteins by using an antibody against nitrotyrosine. One of these proteins was found to be the NADH-dependent hydroxypyruvate reductase (HPR). The in vitro nitration of peroxisomal samples caused a 65% inhibition of HPR activity. Analysis of recombinant peroxisomal NADH-dependent HPR1 activity from Arabidopsis in the presence of H2O2, NO, GSH and peroxynitrite showed that the ONOO(-) molecule caused the highest inhibition of activity (51% at 5mM SIN-1), with 5mM H2O2 having no inhibitory effect. Mass spectrometric analysis of the nitrated recombinant HPR1 enabled us to determine that, among the eleven tyrosine present in this enzyme, only Tyr-97, Tyr-108 and Tyr-198 were exclusively nitrated to 3-nitrotyrosine by peroxynitrite. Site-directed mutagenesis confirmed Tyr198 as the primary site of nitration responsible for the inhibition on the enzymatic activity by peroxynitrite. CONCLUSION These findings suggest that peroxisomal HPR is a target of peroxynitrite which provokes a loss of function. GENERAL SIGNIFICANCE This is the first report demonstrating the peroxisomal NADH-dependent HPR activity involved in the photorespiration pathway is regulated by tyrosine nitration, indicating that peroxisomal NO metabolism may contribute to the regulation of physiological processes under no-stress conditions.
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Affiliation(s)
- Francisco J Corpas
- Departamento de Bioquímica, Biología Celular y Molecular de Plantas, Estación Experimental del Zaidín (EEZ), CSIC, Apartado 419, E-18080 Granada, Spain.
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Ahsan H. 3-Nitrotyrosine: A biomarker of nitrogen free radical species modified proteins in systemic autoimmunogenic conditions. Hum Immunol 2013; 74:1392-9. [PMID: 23777924 DOI: 10.1016/j.humimm.2013.06.009] [Citation(s) in RCA: 165] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Revised: 05/10/2013] [Accepted: 06/07/2013] [Indexed: 02/07/2023]
Abstract
The free radical-mediated damage to proteins results in the modification of amino acid residues, cross-linking of side chains and fragmentation. l-Tyrosine and protein bound tyrosine are prone to attack by various mediators and reactive nitrogen intermediates to form 3-nitrotyrosine (3-NT). Activated macrophages produce superoxide (O2(·-)) and NO, which are converted to peroxynitrite ONO2(-). 3-NT formation is also catalyzed by a class of peroxidases utilizing nitrite and hydrogen peroxide as substrates. Evidence supports the formation of 3-NT in vivo in diverse pathologic conditions and 3-NT is thought to be a relatively specific marker of oxidative damage mediated by peroxynitrite. Free/protein-bound tyrosines are attacked by various RNS, including peroxynitrite, to form free/protein-bound 3-NT, which may provide insight into the etiopathogenesis of autoimmune conditions. The formation of nitrotyrosine represents a specific peroxynitrite-mediated protein modification; thus, detection of nitrotyrosine in proteins is considered as a biomarker for endogenous peroxynitrite activity. The peroxynitrite-driven oxidation and nitration of biomolecules may lead to autoimmune diseases such as systemic lupus. The subsequent release of altered proteins may enable them to act as antigen-inducing antibodies against self-proteins. Hence, tyrosine nitrated proteins can act as neoantigens and lead to the generation of autoantibodies against self proteins in various autoimmune disorders.
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Affiliation(s)
- Haseeb Ahsan
- Department of Biochemistry, Faculty of Dentistry, Jamia Millia Islamia, New Delhi, India.
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18
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Daiber A, Daub S, Bachschmid M, Schildknecht S, Oelze M, Steven S, Schmidt P, Megner A, Wada M, Tanabe T, Münzel T, Bottari S, Ullrich V. Protein tyrosine nitration and thiol oxidation by peroxynitrite-strategies to prevent these oxidative modifications. Int J Mol Sci 2013; 14:7542-70. [PMID: 23567270 PMCID: PMC3645702 DOI: 10.3390/ijms14047542] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Revised: 03/11/2013] [Accepted: 03/18/2013] [Indexed: 12/21/2022] Open
Abstract
The reaction product of nitric oxide and superoxide, peroxynitrite, is a potent biological oxidant. The most important oxidative protein modifications described for peroxynitrite are cysteine-thiol oxidation and tyrosine nitration. We have previously demonstrated that intrinsic heme-thiolate (P450)-dependent enzymatic catalysis increases the nitration of tyrosine 430 in prostacyclin synthase and results in loss of activity which contributes to endothelial dysfunction. We here report the sensitive peroxynitrite-dependent nitration of an over-expressed and partially purified human prostacyclin synthase (3.3 μM) with an EC50 value of 5 μM. Microsomal thiols in these preparations effectively compete for peroxynitrite and block the nitration of other proteins up to 50 μM peroxynitrite. Purified, recombinant PGIS showed a half-maximal nitration by 10 μM 3-morpholino sydnonimine (Sin-1) which increased in the presence of bicarbonate, and was only marginally induced by freely diffusing NO2-radicals generated by a peroxidase/nitrite/hydrogen peroxide system. Based on these observations, we would like to emphasize that prostacyclin synthase is among the most efficiently and sensitively nitrated proteins investigated by us so far. In the second part of the study, we identified two classes of peroxynitrite scavengers, blocking either peroxynitrite anion-mediated thiol oxidations or phenol/tyrosine nitrations by free radical mechanisms. Dithiopurines and dithiopyrimidines were highly effective in inhibiting both reaction types which could make this class of compounds interesting therapeutic tools. In the present work, we highlighted the impact of experimental conditions on the outcome of peroxynitrite-mediated nitrations. The limitations identified in this work need to be considered in the assessment of experimental data involving peroxynitrite.
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Affiliation(s)
- Andreas Daiber
- 2nd Medical Clinic, Molecular Cardiology, Medical Center of the Johannes Gutenberg University, Mainz 55131, Germany; E-Mails: (S.D.); (M.O.); (S.S.); (T.M.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +49-6131-176-280, Fax: +49-6131-176-293
| | - Steffen Daub
- 2nd Medical Clinic, Molecular Cardiology, Medical Center of the Johannes Gutenberg University, Mainz 55131, Germany; E-Mails: (S.D.); (M.O.); (S.S.); (T.M.)
| | - Markus Bachschmid
- Vascular Biology Section, Whitaker Cardiovascular Institute, Boston University Medical Center, Boston, MA 02118, USA; E-Mail:
| | - Stefan Schildknecht
- Department of Biology, University of Konstanz, Konstanz 78457, Germany; E-Mails: (S.S.); (P.S.); (V.U.)
| | - Matthias Oelze
- 2nd Medical Clinic, Molecular Cardiology, Medical Center of the Johannes Gutenberg University, Mainz 55131, Germany; E-Mails: (S.D.); (M.O.); (S.S.); (T.M.)
| | - Sebastian Steven
- 2nd Medical Clinic, Molecular Cardiology, Medical Center of the Johannes Gutenberg University, Mainz 55131, Germany; E-Mails: (S.D.); (M.O.); (S.S.); (T.M.)
| | - Patrick Schmidt
- Department of Biology, University of Konstanz, Konstanz 78457, Germany; E-Mails: (S.S.); (P.S.); (V.U.)
| | - Alexandra Megner
- Department of Biology, University of Konstanz, Konstanz 78457, Germany; E-Mails: (S.S.); (P.S.); (V.U.)
| | - Masayuki Wada
- Department of Pharmacology, National Cardiovascular Center Research Institute, Suita, Osaka 565-8565, Japan; E-Mail:
| | - Tadashi Tanabe
- Department of Pharmacology, National Cardiovascular Center Research Institute, Suita, Osaka 565-8565, Japan; E-Mail:
| | - Thomas Münzel
- 2nd Medical Clinic, Molecular Cardiology, Medical Center of the Johannes Gutenberg University, Mainz 55131, Germany; E-Mails: (S.D.); (M.O.); (S.S.); (T.M.)
| | - Serge Bottari
- Laboratory of Fundamental and Applied, Bioenergetics, INSERM U1055, Grenoble Universités and Pôle de Biologie, CHU, Grenoble 38400, France; E-Mail:
| | - Volker Ullrich
- Department of Biology, University of Konstanz, Konstanz 78457, Germany; E-Mails: (S.S.); (P.S.); (V.U.)
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Tyrosine nitration provokes inhibition of sunflower carbonic anhydrase (β-CA) activity under high temperature stress. Nitric Oxide 2013; 29:30-3. [DOI: 10.1016/j.niox.2012.12.003] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Revised: 10/18/2012] [Accepted: 12/14/2012] [Indexed: 11/17/2022]
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Begara-Morales JC, Chaki M, Sánchez-Calvo B, Mata-Pérez C, Leterrier M, Palma JM, Barroso JB, Corpas FJ. Protein tyrosine nitration in pea roots during development and senescence. JOURNAL OF EXPERIMENTAL BOTANY 2013; 64:1121-34. [PMID: 23362300 PMCID: PMC3580824 DOI: 10.1093/jxb/ert006] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Protein tyrosine nitration is a post-translational modification mediated by reactive nitrogen species (RNS) that is associated with nitro-oxidative damage. No information about this process is available in relation to higher plants during development and senescence. Using pea plants at different developmental stages (ranging from 8 to 71 days), tyrosine nitration in the main organs (roots, stems, leaves, flowers, and fruits) was analysed using immunological and proteomic approaches. In the roots of 71-day-old senescent plants, nitroproteome analysis enabled the identification a total of 16 nitrotyrosine-immunopositive proteins. Among the proteins identified, NADP-isocitrate dehydrogenase (ICDH), an enzyme involved in the carbon and nitrogen metabolism, redox regulation, and responses to oxidative stress, was selected to evaluate the effect of nitration. NADP-ICDH activity fell by 75% during senescence. Analysis showed that peroxynitrite inhibits recombinant cytosolic NADP-ICDH activity through a process of nitration. Of the 12 tyrosines present in this enzyme, mass spectrometric analysis of nitrated recombinant cytosolic NADP-ICDH enabled this study to identify the Tyr392 as exclusively nitrated by peroxynitrite. The data as a whole reveal that protein tyrosine nitration is a nitric oxide-derived PTM prevalent throughout root development and intensifies during senescence.
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Affiliation(s)
- Juan C. Begara-Morales
- Group of Molecular Signaling and Antioxidant Systems in Plants, Associated Unit to Consejo Superior de Investigaciones Científicas (EEZ), Area of Biochemistry and Molecular Biology, University of Jaen, E-23071 Jaén, Spain
| | - Mounira Chaki
- Department of Biochemistry, Molecular and Cellular Biology of Plants, Estación Experimental del Zaidín (EEZ), Consejo Superior de Investigaciones Científicas, E-18080 Granada, Spain
| | - Beatriz Sánchez-Calvo
- Group of Molecular Signaling and Antioxidant Systems in Plants, Associated Unit to Consejo Superior de Investigaciones Científicas (EEZ), Area of Biochemistry and Molecular Biology, University of Jaen, E-23071 Jaén, Spain
| | - Capilla Mata-Pérez
- Group of Molecular Signaling and Antioxidant Systems in Plants, Associated Unit to Consejo Superior de Investigaciones Científicas (EEZ), Area of Biochemistry and Molecular Biology, University of Jaen, E-23071 Jaén, Spain
| | - Marina Leterrier
- Department of Biochemistry, Molecular and Cellular Biology of Plants, Estación Experimental del Zaidín (EEZ), Consejo Superior de Investigaciones Científicas, E-18080 Granada, Spain
| | - José M. Palma
- Department of Biochemistry, Molecular and Cellular Biology of Plants, Estación Experimental del Zaidín (EEZ), Consejo Superior de Investigaciones Científicas, E-18080 Granada, Spain
| | - Juan B. Barroso
- Group of Molecular Signaling and Antioxidant Systems in Plants, Associated Unit to Consejo Superior de Investigaciones Científicas (EEZ), Area of Biochemistry and Molecular Biology, University of Jaen, E-23071 Jaén, Spain
| | - Francisco J. Corpas
- Department of Biochemistry, Molecular and Cellular Biology of Plants, Estación Experimental del Zaidín (EEZ), Consejo Superior de Investigaciones Científicas, E-18080 Granada, Spain
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Lin HL, Kenaan C, Zhang H, Hollenberg PF. Reaction of human cytochrome P450 3A4 with peroxynitrite: nitrotyrosine formation on the proximal side impairs its interaction with NADPH-cytochrome P450 reductase. Chem Res Toxicol 2012; 25:2642-53. [PMID: 23016756 DOI: 10.1021/tx3002753] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The reaction of peroxynitrite (PN) with purified human cytochrome P450 3A4 (CYP3A4) resulted in the loss of the reduced-CO difference spectrum, but the absolute absorption spectrum of the heme was not significantly altered. The loss of 7-benzyloxy-4-(trifluoromethyl)coumarin (BFC) O-debenzylation activity of CYP3A4 was concentration-dependent with respect to PN, and the loss of BFC activity supported by NADPH-cytochrome P450 reductase (CPR) was much greater than that supported by tert-butyl hydroperoxide. Moreover, the PN-treated CYP3A4 exhibited a reduced-CO spectrum when reduced by CPR that was much smaller than when it was reduced by dithionite. These results suggest that modification of CYP3A4 by PN may impair its interaction with CPR, leading to the loss of catalytic activity. Tyrosine nitration, as measured by an increase in mass of 45 Da due to the addition of a nitro group, was used as a biomarker for protein modification by PN. PN-treated CYP3A4 was digested by trypsin and endoproteinase Glu C, and nitrotyrosine formation was then determined by using electrospray ionization-liquid chromatography-tandem mass spectrometry. Tyr residues 99, 307, 347, 430, and 432 were found to be nitrated. Using the GRAMM-X docking program, the structure for the CYP3A4-CPR complex shows that Tyr99, Tyr347, and Tyr430 are on the proximal side of CYP3A4 and are in close contact with three acidic residues in the FMN domain of CPR, suggesting that modification of one or more of these tyrosine residues by PN may influence CPR binding or the transfer of electrons to CYP3A4. Mutagenesis of Tyr430 to Phe or Val revealed that both the aromatic and the hydroxyl groups of Tyr are required for CPR-dependent catalytic activity and thus support the idea that the proximal side Tyr participates in the 3A4-CPR interaction. In conclusion, modification of tyrosine residues by PN and their subsequent identification can be used to enhance our knowledge of the structure/function relationships of the P450s with respect to the electron transfer steps, which are critical for P450 activity.
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Affiliation(s)
- Hsia-lien Lin
- Department of Pharmacology, University of Michigan, 2301 MSRB III, 1150 West Medical Center Drive, Ann Arbor, Michigan 48109-5632, United States
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Chaki M, Valderrama R, Fernández-Ocaña AM, Carreras A, Gómez-Rodríguez MV, López-Jaramillo J, Begara-Morales JC, Sánchez-Calvo B, Luque F, Leterrier M, Corpas FJ, Barroso JB. High temperature triggers the metabolism of S-nitrosothiols in sunflower mediating a process of nitrosative stress which provokes the inhibition of ferredoxin-NADP reductase by tyrosine nitration. PLANT, CELL & ENVIRONMENT 2011; 34:1803-18. [PMID: 21676000 DOI: 10.1111/j.1365-3040.2011.02376.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
High temperature (HT) is considered a major abiotic stress that negatively affects both vegetative and reproductive growth. Whereas the metabolism of reactive oxygen species (ROS) is well established under HT, less is known about the metabolism of reactive nitrogen species (RNS). In sunflower (Helianthus annuus L.) seedlings exposed to HT, NO content as well as S-nitrosoglutathione reductase (GSNOR) activity and expression were down-regulated with the simultaneous accumulation of total S-nitrosothiols (SNOs) including S-nitrosoglutathione (GSNO). However, the content of tyrosine nitration (NO(2) -Tyr) studied by high-performance liquid chromatography with tandem mass spectrometry (LC-MS/MS) and by confocal laser scanning microscope was induced. Nitroproteome analysis under HT showed that this stress induced the protein expression of 13 tyrosine-nitrated proteins. Among the induced proteins, ferredoxin-NADP reductase (FNR) was selected to evaluate the effect of nitration on its activity after heat stress and in vitro conditions using 3-morpholinosydnonimine (SIN-1) (peroxynitrite donor) as the nitrating agent, the FNR activity being inhibited. Taken together, these results suggest that HT augments SNOs, which appear to mediate protein tyrosine nitration, inhibiting FNR, which is involved in the photosynthesis process.
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Affiliation(s)
- Mounira Chaki
- Grupo de Señalización Molecular y Sistemas Antioxidantes en Plantas, Unidad Asociada al CSIC, Departamento de Bioquímica y Biología Molecular, Universidad de Jaén E-23071 Jaén, Spain
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Maréchal A, Mattioli TA, Stuehr DJ, Santolini J. NO synthase isoforms specifically modify peroxynitrite reactivity. FEBS J 2010; 277:3963-73. [DOI: 10.1111/j.1742-4658.2010.07786.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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24
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Yuan X, Sheng X, Horner JH, Bennett B, Fung LWM, Newcomb M. Low temperature photo-oxidation of chloroperoxidase Compound II. J Inorg Biochem 2010; 104:1156-63. [PMID: 20674981 DOI: 10.1016/j.jinorgbio.2010.07.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2009] [Revised: 07/08/2010] [Accepted: 07/09/2010] [Indexed: 10/19/2022]
Abstract
Oxidation of the heme-thiolate enzyme chloroperoxidase (CPO) from Caldariomyces fumago with peroxynitrite (PN) gave the Compound II intermediate, which was photo-oxidized with 365 nm light to give a reactive oxidizing species. Cryo-solvents at pH ≈ 6 were employed, and reactions were conducted at temperatures as low as -50° C. The activity of CPO as evaluated by the chlorodimedone assay was unaltered by treatment with PN or by production of the oxidizing transient and subsequent reaction with styrene. EPR spectra at 77K gave the amount of ferric protein at each stage in the reaction sequence. The PN oxidation step gave a 6:1 mixture of Compound II and ferric CPO, the photolysis step gave an approximate 1:1 mixture of active oxidant and ferric CPO, and the final mixture after reaction with excess styrene contained ferric CPO in 80% yield. In single turnover reactions at -50°C, styrene was oxidized to styrene oxide in high yield. Kinetic studies of styrene oxidation at -50°C displayed saturation kinetics with an equilibrium constant for formation of the complex of K(bind)=3.8 x 10(4)M(-1) and an oxidation rate constant of k(ox)=0.30s(-1). UV-Visible spectra of mixtures formed in the photo-oxidation sequence at ca. -50° C did not contain the signature Q-band absorbance at 690 nm ascribed to CPO Compound I prepared by chemical oxidation of the enzyme, indicating that different species were formed in the chemical oxidation and the photo-oxidation sequence.
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Affiliation(s)
- Xinting Yuan
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor St, Chicago, Illinois 60607, USA
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25
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Daiber A. Redox signaling (cross-talk) from and to mitochondria involves mitochondrial pores and reactive oxygen species. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2010; 1797:897-906. [PMID: 20122895 DOI: 10.1016/j.bbabio.2010.01.032] [Citation(s) in RCA: 273] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2009] [Revised: 01/15/2010] [Accepted: 01/26/2010] [Indexed: 12/13/2022]
Abstract
This review highlights the important role of redox signaling between mitochondria and NADPH oxidases. Besides the definition and general importance of redox signaling, the cross-talk between mitochondrial and Nox-derived reactive oxygen species (ROS) is discussed on the basis of 4 different examples. In the first model, angiotensin-II is discussed as a trigger for NADPH oxidase activation with subsequent ROS-dependent opening of mitochondrial ATP-sensitive potassium channels leading to depolarization of mitochondrial membrane potential followed by mitochondrial ROS formation and respiratory dysfunction. This concept was supported by observations that ethidium bromide-induced mitochondrial damage suppressed angiotensin-II-dependent increase in Nox1 and oxidative stress. In another example hypoxia was used as a stimulator of mitochondrial ROS formation and by using pharmacological and genetic inhibitors, a role of mitochondrial ROS for the induction of NADPH oxidase via PKCvarepsilon was demonstrated. The third model was based on cell death by serum withdrawal that promotes the production of ROS in human 293T cells by stimulating both the mitochondria and Nox1. By superior molecular biological methods the authors showed that mitochondria were responsible for the fast onset of ROS formation followed by a slower but long-lasting oxidative stress condition based on the activation of an NADPH oxidase (Nox1) in response to the fast mitochondrial ROS formation. Finally, a cross-talk between mitochondria and NADPH oxidases (Nox2) was shown in nitroglycerin-induced tolerance involving the mitochondrial permeability transition pore and ATP-sensitive potassium channels. The use of these redox signaling pathways as pharmacological targets is briefly discussed.
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Affiliation(s)
- Andreas Daiber
- Universitätsmedizin der Johannes Gutenberg-Universität Mainz, II. Med. Klinik u. Poliklinik-Labor für Molekulare Kardiologie, Obere Zahlbacher Str. 63, 55101 Mainz, Germany.
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26
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Deeb RS, Lamon BD, Hajjar DP. Silent Partner in Blood Vessel Homeostasis? Pervasive Role of Nitric Oxide in Vascular Disease. Curr Hypertens Rev 2009; 5:273-282. [PMID: 20368751 PMCID: PMC2847292 DOI: 10.2174/157340209789587726] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The endothelium generates powerful mediators that regulate blood flow, temper inflammation and maintain a homeostatic environment to prevent both the initiation and progression of vascular disease. Nitric oxide (NO) is arguably the single most influential molecule in terms of dictating blood vessel homeostasis. In addition to direct effects associated with altered NO production (e.g. vasoconstriction, excessive inflammation, endothelial dysfunction), NO is a critical modulator of vaso-relevant pathways including cyclooxygenase (COX)-derived prostaglandin production and angiotensin II generation by the renin-angiotensin system. Furthermore, NO may influence the selectivity of COX-2 inhibitors and ultimately contribute to controversies associated with the use of these drugs. Consistent with a central role for NO in vascular disease, disruptions in the production and bioavailability of NO have been linked to hypertension, diabetes, hypercholesterolemia, obesity, aging, and smoking. The ability of the vessel wall to control disease-associated oxidative stress may be the most critical determinant in maintaining homeostatic levels of NO and subsequently the prospect of stroke, myocardial infarction and other CV abnormalities. To this end, investigation of mechanisms that alter the balance of protective mediators, including pathways that are indirectly modified by NO, is critical to the development of effective therapy in the treatment of CV disease.
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Affiliation(s)
- Ruba S. Deeb
- Department of Pathology and Laboratory Medicine, Center of Vascular Biology, Weill Cornell, Medical College of Cornell University, 1300 York Avenue, New York, New York 10065
| | - Brian D. Lamon
- Department of Pathology and Laboratory Medicine, Center of Vascular Biology, Weill Cornell, Medical College of Cornell University, 1300 York Avenue, New York, New York 10065
| | - David P. Hajjar
- Department of Pathology and Laboratory Medicine, Center of Vascular Biology, Weill Cornell, Medical College of Cornell University, 1300 York Avenue, New York, New York 10065
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27
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Abello N, Kerstjens HAM, Postma DS, Bischoff R. Protein tyrosine nitration: selectivity, physicochemical and biological consequences, denitration, and proteomics methods for the identification of tyrosine-nitrated proteins. J Proteome Res 2009; 8:3222-38. [PMID: 19415921 DOI: 10.1021/pr900039c] [Citation(s) in RCA: 257] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Protein tyrosine nitration (PTN) is a post-translational modification occurring under the action of a nitrating agent. Tyrosine is modified in the 3-position of the phenolic ring through the addition of a nitro group (NO2). In the present article, we review the main nitration reactions and elucidate why nitration is not a random chemical process. The particular physical and chemical properties of 3-nitrotyrosine (e.g., pKa, spectrophotometric properties, reduction to aminotyrosine) will be discussed, and the biological consequences of PTN (e.g., modification of enzymatic activity, sensitivity to proteolytic degradation, impact on protein phosphorylation, immunogenicity and implication in disease) will be reviewed. Recent data indicate the possibility of an in vivo denitration process, which will be discussed with respect to the different reaction mechanisms that have been proposed. The second part of this review article focuses on analytical methods to determine this post-translational modification in complex proteomes, which remains a major challenge.
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Affiliation(s)
- Nicolas Abello
- Department of Analytical Biochemistry, Center for Pharmacy, University of Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
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28
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Daiber A, Schildknecht S, Müller J, Kamuf J, Bachschmid MM, Ullrich V. Chemical model systems for cellular nitros(yl)ation reactions. Free Radic Biol Med 2009; 47:458-67. [PMID: 19477267 PMCID: PMC4006669 DOI: 10.1016/j.freeradbiomed.2009.05.019] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2008] [Revised: 04/21/2009] [Accepted: 05/18/2009] [Indexed: 01/21/2023]
Abstract
S-nitros(yl)ation belongs to the redox-based posttranslational modifications of proteins but the underlying chemistry is controversial. In contrast to current concepts involving the autoxidation of nitric oxide ((.)NO, nitrogen monoxide), we and others have proposed the formation of peroxynitrite (oxoperoxonitrate (1(-))as an essential intermediate. This requires low cellular fluxes of (.)NO and superoxide (UO2(-)), for which model systems have been introduced. We here propose two new systems for nitros(yl)ation that avoid the shortcomings of previous models. Based on the thermal decomposition of 3-morpholinosydnonimine,equal fluxes of (.)NO and UO2(-) were generated and modulated by the addition of (.)NO donors or Cu,Zn superoxide dismutase. As reactants for S-nitros(yl)ation, NADP+-dependent isocitrate dehydrogenase and glutathione were employed, for which optimal S-nitros(yl)ation was observed at nanomolar fluxes of (.)NO and UO2(-) at a ratio of about 3:1. The previously used reactants phenol and diaminonaphthalene (C- and Nnitrosation)demonstrated potential participation of multiple pathways for nitros(yl)ation. According to our data, neither peroxynitrite nor autoxidation of UNO was as efficient as the 3 (.)NO/1 UO2(-) system in mediating S-nitros(yl)ation. In theory this could lead to an elusive nitrosonium (nitrosyl cation)-like species in the first step and to N2O3 in the subsequent reaction. Which of these two species or whether both together will participate in biological S-nitros(yl)ation remains to be elucidated. Finally, we developed several hypothetical scenarios to which the described (.)NO/UO2-flux model could apply, providing conditions that allow either direct electrophilic substitution at a thiolate or S-nitros(yl)ation via transnitrosation from S-nitrosoglutathione.
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Affiliation(s)
- Andreas Daiber
- Second Medical Clinic, Department of Cardiology, Johannes Gutenberg University, 55101 Mainz, Germany.
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Gebicka L, Didik J. Catalytic scavenging of peroxynitrite by catalase. J Inorg Biochem 2009; 103:1375-9. [PMID: 19709751 DOI: 10.1016/j.jinorgbio.2009.07.011] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2009] [Revised: 07/15/2009] [Accepted: 07/17/2009] [Indexed: 01/23/2023]
Abstract
Peroxynitrite (ONOO(-)/ONOOH), the product of the diffusion controlled reaction between nitric oxide (*NO) and superoxide anion (O(2)(-)*), is a strong oxidizing and nitrating agent. Several heme proteins react rapidly with peroxynitrite, some of them catalyze its decomposition. In this work we found, contrary to previous reports, that catalase, a ferriheme enzyme, catalytically scavenges peroxynitrite. The second-order reaction rate constants of peroxynitrite decay catalyzed by catalase increase with decreasing pH and are equal to (2.7+/-0.2) x 10(6), (1.7+/-0.1) x 10(6) and (0.8+/-0.1) x 10(6) M(-1) s(-1) at pH 6.1, 7.1 and 8.0, respectively. This dependence suggests that peroxynitrous acid, ONOOH, is the species that reacts with heme center of catalase. The possible reaction mechanisms of the decay of peroxynitrite catalyzed by catalase and physiological relevance of this reaction are discussed.
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Affiliation(s)
- Lidia Gebicka
- Institute of Applied Radiation Chemistry, Faculty of Chemistry, Technical University of Lodz, Wroblewskiego 15, 93-590 Lodz, Poland.
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Soulère L, Bernard J. Design, solid phase synthesis and evaluation of cationic ferrocenoyl peptide bioconjugates as potential antioxidant enzyme mimics. Bioorg Med Chem Lett 2009; 19:1173-6. [DOI: 10.1016/j.bmcl.2008.12.084] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2008] [Revised: 12/16/2008] [Accepted: 12/19/2008] [Indexed: 11/16/2022]
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Chaki M, Valderrama R, Fernández-Ocaña AM, Carreras A, López-Jaramillo J, Luque F, Palma JM, Pedrajas JR, Begara-Morales JC, Sánchez-Calvo B, Gómez-Rodríguez MV, Corpas FJ, Barroso JB. Protein targets of tyrosine nitration in sunflower (Helianthus annuus L.) hypocotyls. JOURNAL OF EXPERIMENTAL BOTANY 2009; 60:4221-34. [PMID: 19717529 DOI: 10.1093/jxb/erp263] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Tyrosine nitration is recognized as an important post-translational protein modification in animal cells that can be used as an indicator of a nitrosative process. However, in plant systems, there is scant information on proteins that undergo this process. In sunflower hypocotyls, the content of tyrosine nitration (NO(2)-Tyr) and the identification of nitrated proteins were studied by high-performance liquid chromatography with tandem mass spectrometry (LC-MS/MS) and proteomic approaches, respectively. In addition, the cell localization of nitrotyrosine proteins and peroxynitrite were analysed by confocal laser-scanning microscopy (CLSM) using antibodies against 3-nitrotyrosine and 3'-(p-aminophenyl) fluorescein (APF) as the fluorescent probe, in that order. The concentration of Tyr and NO(2)-Tyr in hypocotyls was 0.56 micromol mg(-1) protein and 0.19 pmol mg(-1) protein, respectively. By proteomic analysis, a total of 21 nitrotyrosine-immunopositive proteins were identified. These targets include proteins involved in photosynthesis, and in antioxidant, ATP, carbohydrate, and nitrogen metabolism. Among the proteins identified, S-adenosyl homocysteine hydrolase (SAHH) was selected as a model to evaluate the effect of nitration on SAHH activity using SIN-1 (a peroxynitrite donor) as the nitrating agent. When the hypocotyl extracts were exposed to 0.5 mM, 1 mM, and 5 mM SIN-1, the SAHH activity was inhibited by some 49%, 89%, and 94%, respectively. In silico analysis of the barley SAHH sequence, characterized Tyr448 as the most likely potential target for nitration. In summary, the present data are the first in plants concerning the content of nitrotyrosine and the identification of candidates of protein nitration. Taken together, the results suggest that Tyr nitration occurs in plant tissues under physiological conditions that could constitute an important process of protein regulation in such a way that, when it is overproduced in adverse circumstances, it can be used as a marker of nitrosative stress.
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Affiliation(s)
- Mounira Chaki
- Grupo de Señalización Molecular y Sistemas Antioxidantes en Plantas, Unidad Asociada al CSIC (EEZ), Departamento de Bioquímica y Biología Molecular, Universidad de Jaén, Spain
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32
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Starodubtseva MN, Tattersall AL, Kuznetsova TG, Yegorenkov NI, Ellory JC. Structural and functional changes in the membrane and membrane skeleton of red blood cells induced by peroxynitrite. Bioelectrochemistry 2008; 73:155-62. [DOI: 10.1016/j.bioelechem.2008.01.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2007] [Revised: 12/16/2007] [Accepted: 01/17/2008] [Indexed: 12/15/2022]
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Deeb RS, Upmacis RK, Lamon BD, Gross SS, Hajjar DP. Maintaining equilibrium by selective targeting of cyclooxygenase pathways: promising offensives against vascular injury. Hypertension 2007; 51:1-7. [PMID: 17998477 DOI: 10.1161/hypertensionaha.107.092866] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Ruba S Deeb
- Department of Pathology and Laboratory Medicine, Center of Vascular Biology, Room A626, Weill Cornell Medical College, 1300 York Ave, New York, NY 10021, USA
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34
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Lin HL, Myshkin E, Waskell L, Hollenberg PF. Peroxynitrite inactivation of human cytochrome P450s 2B6 and 2E1: heme modification and site-specific nitrotyrosine formation. Chem Res Toxicol 2007; 20:1612-22. [PMID: 17907788 DOI: 10.1021/tx700220e] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This study examined the reaction of peroxynitrite (PN) with two human cytochrome P450s, P450 2B6 (2B6) and P450 2E1 (2E1). After the reaction with PN, the NADPH/reductase-supported 7-ethoxy-4-(trifluoromethyl)coumarin (EFC) deethylation activity of both P450s was decreased in a concentration-dependent manner. HPLC analysis revealed that the prosthetic heme group of 2B6 was modified but to a lesser extent than the decrease in enzymatic activity. In contrast, the heme moiety of 2E1 was not altered. These results suggest that protein modification by PN contributed to the loss in enzymatic activity of 2B6 and 2E1 but to different extents. After trypsin digestion of the control and PN-inactivated P450s, tyrosine nitration was used as a biomarker for protein modification and the addition of the nitro group was determined using electrospray ionization-liquid chromatography-tandem mass spectrometry, allowing site-specific assignment of the tyrosine residues nitrated. Tyrosine residues 354, 244, 268, and 380 in 2B6 and tyrosine residues 317, 422, 69, and 380 in 2E1 were found to be nitrated. Tyrosine 354 is the primary site of nitration in 2B6, and tyrosine residues 422 and 317 are the primary targets for nitration in 2E1. After PN exposure, the EFC catalytic activity of 2E1 supported by tert-butylhydroperoxide was not affected, and the activity of 2B6 supported by tert-butylhydroperoxide was decreased to a lesser extent than that supported by NADPH/reductase. Following exposure to PN, the levels of the reduced-CO complex were less than the content of native heme remaining. These results suggest that PN-mediated protein modification has no effect on substrate binding but may impair the interaction of the reductase with P450s, thereby inhibiting electron transfer. Homology modeling shows that Tyr422 of 2E1 is in close proximity to the FMN domain of reductase, suggesting that Tyr422 may be involved in transferring electrons from the reductase to the heme and thus may play a critical structural and functional role in the extensive activity loss following PN exposure.
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Affiliation(s)
- Hsia-Lien Lin
- Department of Pharmacology, University of Michigan and VA Medical Center, Ann Arbor, Michigan 48109, USA
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Maréchal A, Mattioli TA, Stuehr DJ, Santolini J. Activation of Peroxynitrite by Inducible Nitric-oxide Synthase. J Biol Chem 2007; 282:14101-12. [PMID: 17369257 DOI: 10.1074/jbc.m609237200] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
In mammals, nitric oxide (NO) is an essential biological mediator that is exclusively synthesized by nitric-oxide synthases (NOSs). However, NOSs are also directly or indirectly responsible for the production of peroxynitrite, a well known cytotoxic agent involved in numerous pathophysiological processes. Peroxynitrite reactivity is extremely intricate and highly depends on activators such as hemoproteins. NOSs present, therefore, the unique ability to both produce and activate peroxynitrite, which confers upon them a major role in the control of peroxynitrite bioactivity. We report here the first kinetic analysis of the interaction between peroxynitrite and the oxygenase domain of inducible NOS (iNOSoxy). iNOSoxy binds peroxynitrite and accelerates its decomposition with a second order rate constant of 22 x 10(4) m(-1)s(-1) at pH 7.4. This reaction is pH-dependent and is abolished by the binding of substrate or product. Peroxynitrite activation is correlated with the observation of a new iNOS heme intermediate with specific absorption at 445 nm. iNOSoxy modifies peroxynitrite reactivity and directs it toward one-electron processes such as nitration or one-electron oxidation. Taken together our results suggest that, upon binding to iNOSoxy, peroxynitrite undergoes homolytic cleavage with build-up of an oxo-ferryl intermediate and concomitant release of a NO(2)(.) radical. Successive cycles of peroxynitrite activation were shown to lead to iNOSoxy autocatalytic nitration and inhibition. The balance between peroxynitrite activation and self-inhibition of iNOSoxy may determine the contribution of NOSs to cellular oxidative stress.
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Affiliation(s)
- Amandine Maréchal
- Laboratoire de Stress Oxydant et Détoxication, iBiTec-S, Commissariat à l'Energie Atomique, Saclay, Gif-sur-Yvette Cedex, France
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Upmacis RK, Deeb RS, Hajjar DP. Reprint of “Oxidative alterations of cyclooxygenase during atherogenesis” [Prostag. Oth. Lipid. M. 80 (2006) 1–14]. Prostaglandins Other Lipid Mediat 2007; 82:I-XIV. [PMID: 17164126 DOI: 10.1016/s1098-8823(06)00182-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2006] [Revised: 05/15/2006] [Accepted: 05/16/2006] [Indexed: 01/22/2023]
Abstract
Nitric oxide (*NO) and eicosanoids are critical mediators of physiological and pathophysiological processes. They include inflammation and atherosclerosis. *NO production and eicosanoid synthesis become disrupted during atherosclerosis and thus, it is important to understand the mechanisms that may contribute to this outcome. We, and others, have shown that nitrogen oxide (NOx) species modulate cyclooxygenase (COX; also known as prostaglandin H2 synthase) activity and alter eicosanoid production. We have determined that peroxynitrite (ONOO-) has multiple effects on COX activity. ONOO- can provide the peroxide tone necessary for COX activation, such that simultaneous exposure of COX to its arachidonic acid substrate and ONOO- results in increased eicosanoid production. Alternatively, in the absence of arachidonic acid, ONOO- can modify COX through nitration of an essential tyrosine residue (Tyr385) such that it is incapable of catalysis. In this regard, we have shown that COX nitration occurs in human atherosclerotic tissue and in aortic lesions from ApoE-/- mice kept on a high fat diet. Additionally, we have demonstrated that Tyr nitration in ApoE-/- mice is dependent on the inducible form of NO synthase (iNOS). Under conditions where ONOO- persists and arachidonic acid is not immediately available, the cell may try to correct the situation by responding to ONOO- and releasing arachidonic acid via a signaling pathway to favor COX activation. Other post-translational modifications of COX by NOx species include S-nitrosation of cysteine (Cys) residues (which may have an activating effect) and Cys oxidation. The central focus of this review will include a discussion of how NOx species alter COX activity at the molecular level and how these modifications may contribute to altered eicosanoid output during atherosclerosis and lesion development.
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Affiliation(s)
- Rita K Upmacis
- Center of Vascular Biology, Department of Pathology and Laboratory Medicine, Weill Medical College of Cornell University, 1300 York Avenue, New York, NY 10021, United States.
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Schöneich C, Sharov VS. Mass spectrometry of protein modifications by reactive oxygen and nitrogen species. Free Radic Biol Med 2006; 41:1507-20. [PMID: 17045919 DOI: 10.1016/j.freeradbiomed.2006.08.013] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2006] [Revised: 08/04/2006] [Accepted: 08/11/2006] [Indexed: 10/24/2022]
Abstract
The modification of proteins by reactive oxygen and nitrogen species plays an important role in various biologic processes involving protein activation and inactivation, protein translocation and turnover during signal transduction, stress response, proliferation, and apoptosis. Recent advances in protein and peptide separation and mass spectrometry provide increasingly sophisticated tools for the quantitative analysis of such protein modifications, which are absolutely necessary for their correlation with biologic phenomena. The present review focuses specifically on the qualitative and quantitative mass spectrometric analysis of the most common protein modifications caused by reactive oxygen and nitrogen species in vivo and in vitro and details a case study on a membrane protein the sarco/endoplasmic reticulum Ca-ATPase (SERCA).
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Affiliation(s)
- Christian Schöneich
- Department of Pharmaceutical Chemistry, University of Kansas, 2095 Constant Avenue, Lawrence, KS 66047, USA.
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Upmacis RK, Deeb RS, Hajjar DP. Oxidative alterations of cyclooxygenase during atherogenesis. Prostaglandins Other Lipid Mediat 2006; 80:1-14. [PMID: 16846782 DOI: 10.1016/j.prostaglandins.2006.05.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2006] [Revised: 05/15/2006] [Accepted: 05/16/2006] [Indexed: 12/19/2022]
Abstract
Nitric oxide (*NO) and eicosanoids are critical mediators of physiological and pathophysiological processes. They include inflammation and atherosclerosis. *NO production and eicosanoid synthesis become disrupted during atherosclerosis and thus, it is important to understand the mechanisms that may contribute to this outcome. We, and others, have shown that nitrogen oxide (NO(x)) species modulate cyclooxygenase (COX; also known as prostaglandin H(2) synthase) activity and alter eicosanoid production. We have determined that peroxynitrite (ONOO(-)) has multiple effects on COX activity. ONOO(-) can provide the peroxide tone necessary for COX activation, such that simultaneous exposure of COX to its arachidonic acid substrate and ONOO(-) results in increased eicosanoid production. Alternatively, in the absence of arachidonic acid, ONOO(-) can modify COX through nitration of an essential tyrosine residue (Tyr385) such that it is incapable of catalysis. In this regard, we have shown that COX nitration occurs in human atherosclerotic tissue and in aortic lesions from ApoE(-/-) mice kept on a high fat diet. Additionally, we have demonstrated that Tyr nitration in ApoE(-/-) mice is dependent on the inducible form of NO synthase (iNOS). Under conditions where ONOO(-) persists and arachidonic acid is not immediately available, the cell may try to correct the situation by responding to ONOO(-) and releasing arachidonic acid via a signaling pathway to favor COX activation. Other post-translational modifications of COX by NO(x) species include S-nitrosation of cysteine (Cys) residues (which may have an activating effect) and Cys oxidation. The central focus of this review will include a discussion of how NO(x) species alter COX activity at the molecular level and how these modifications may contribute to altered eicosanoid output during atherosclerosis and lesion development.
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Affiliation(s)
- Rita K Upmacis
- Center of Vascular Biology, Department of Pathology and Laboratory Medicine, Weill Medical College of Cornell University, 1300 York Avenue, New York, NY 10021, United States.
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Saito S, Yamamoto-Katou A, Yoshioka H, Doke N, Kawakita K. Peroxynitrite generation and tyrosine nitration in defense responses in tobacco BY-2 cells. PLANT & CELL PHYSIOLOGY 2006; 47:689-97. [PMID: 16556649 DOI: 10.1093/pcp/pcj038] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Peroxynitrite (ONOO(-)) is a compound formed by reaction of superoxide (O(2) (-)) with nitric oxide (NO) and is expected to possess characteristics of both O(2) (-) reactivity and NO mobility in order to function as a signal molecule. Although there are several reports that describe the role of ONOO(-) in defense responses in plants, it has been very difficult to detect ONOO(-) in bioimaging due to its short half-life or paucity of methods for ONOO(-)-specific detection among reactive oxygen species or free radicals. Aminophenyl fluorescein (APF), a recently developed novel fluorophore for direct detection of ONOO(-) in bioimaging, was used for intracellular ONOO(-) detection. ONOO(-) generation in tobacco BY-2 cells treated with INF1, the major elicitin secreted by the late blight pathogen Phytophthora infestans, occurred within 1 h and reached a maximum level at 6-12 h after INF1 treatment. Urate, a ONOO(-) scavenger, abolished INF1-induced ONOO(-) generation. It is well known that ONOO(-) reacts with tyrosine residues in proteins to form nitrotyrosine in a nitration reaction as an ONOO(-)-specific reaction. Western blot analysis using anti-nitrotyrosine antibodies recognized nitrotyrosine-containing proteins in 20 and 50 kDa bands in BY-2 protein extract containing SIN-1 [3-(4-morpholinyl) sydnonimine hydrochloride; an ONOO(-) donor]. These bands were also recognized in INF1-treated BY-2 cells and were found to be slightly suppressed by urate. Our study is the first to report ONOO(-) detection and tyrosine nitration in defense responses in plants.
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Affiliation(s)
- Syuhei Saito
- Plant Pathology Laboratory, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601 Japan
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Fleury C, Petit A, Mwale F, Antoniou J, Zukor DJ, Tabrizian M, Huk OL. Effect of cobalt and chromium ions on human MG-63 osteoblasts in vitro: morphology, cytotoxicity, and oxidative stress. Biomaterials 2006; 27:3351-60. [PMID: 16488005 DOI: 10.1016/j.biomaterials.2006.01.035] [Citation(s) in RCA: 107] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2005] [Accepted: 01/24/2006] [Indexed: 10/25/2022]
Abstract
Recent studies demonstrated that Co(2+) and Cr(3+) ions induced cell mortality, TNF-alpha secretion, and oxidation of proteins in macrophages. However, little is known about the effects of corrosion products on the osteogenic cells, which have a crucial role in controlling bone remodeling. The aim of the present study was to investigate the effect of Co(2+) (0-10 ppm) and Cr(3+) (0-150 ppm) on human MG-63 osteoblast-like cells in term of cytotoxicity and oxidative stress. Microscopic analysis demonstrated changes in shape, size, and number of cells. Co(2+) had a greater effect on these parameters than Cr(3+). Cell counting showed a significant decrease in the number of MG-63 osteoblasts in a time- and dose-dependent manner, with Co(2+) more toxic than Cr(3+). The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) analysis also showed a decreased cellular activity in presence of Co(2+) and Cr(3+) ions. Oxidized and nitrated proteins, two markers of oxidative stress, were detected as single bands and revealed time- and dose-dependent protein modifications. We also studied the expression of three antioxidant enzymes. The expression of heme oxygenase-1 was increased by both ions after 24h, before decreasing gradually thereafter. Glutathione peroxidase expression was also increased in a concentration- and time-dependent manner by both Co(2+) and Cr(3+) ions. Co(2+) decreased catalase expression while Cr(3+) increased it in a dose- and time-dependent manner. In conclusion, this study demonstrated that Cr(3+) and Co(2+) have a cytotoxic effect on MG-63 osteoblasts and have the potential to modify their redox state.
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Affiliation(s)
- Cyrille Fleury
- Division of Orthopaedic Surgery, McGill University, Lady Davis Institute for Medical Research, The Sir Mortimer B. Davis-Jewish General Hospital, 3775 Chemin de la Côte Sainte Catherine, Montreal, Que., Canada H3 T 1E2
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Deeb RS, Hao G, Gross SS, Lainé M, Qiu JH, Resnick B, Barbar EJ, Hajjar DP, Upmacis RK. Heme catalyzes tyrosine 385 nitration and inactivation of prostaglandin H2 synthase-1 by peroxynitrite. J Lipid Res 2006; 47:898-911. [PMID: 16470026 DOI: 10.1194/jlr.m500384-jlr200] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The mechanism by which the inflammatory enzyme prostaglandin H(2) synthase-1 (PGHS-1) deactivates remains undefined. This study aimed to determine the stabilizing parameters of PGHS-1 and identify factors leading to deactivation by nitric oxide species (NO(x)). Purified PGHS-1 was stabilized when solubilized in beta-octylglucoside (rather than Tween-20 or CHAPS) and when reconstituted with hemin chloride (rather than hematin). Peroxynitrite (ONOO(-)) activated the peroxidase site of PGHS-1 independently of the cyclooxygenase site. After ONOO(-) exposure, holoPGHS-1 could not metabolize arachidonic acid and was structurally compromised, whereas apoPGHS-1 retained full activity once reconstituted with heme. After incubation of holoPGHS-1 with ONOO(-), heme absorbance was diminished but to a lesser extent than the loss in enzymatic function, suggesting the contribution of more than one process to enzyme inactivation. Hydroperoxide scavengers improved enzyme activity, whereas hydroxyl radical scavengers provided no protection from the effects of ONOO(-). Mass spectral analyses revealed that tyrosine 385 (Tyr 385) is a target for nitration by ONOO(-) only when heme is present. Multimer formation was also observed and required heme but could be attenuated by arachidonic acid substrate. We conclude that the heme plays a role in catalyzing Tyr 385 nitration by ONOO(-) and the demise of PGHS-1.
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Affiliation(s)
- Ruba S Deeb
- Department of Pathology and Laboratory Medicine, Center of Vascular Biology, Weill Medical College of Cornell University, New York, NY 10021, USA
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Beda NV, Nedospasov AA. Inorganic nitric oxide metabolites participating in no-dependent modifications of biopolymers. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2006; 32:3-26. [PMID: 16523718 DOI: 10.1134/s1068162006010018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Biogenous nitric(II) oxide (NO), the higher nitrogen oxides (NO2, isomeric N2O3 and N2O4, ONOO-, etc.) that are NO-derived in vivo, and the products of their transformations are active compounds capable of reactions with biopolymers and low-molecular metabolites. The products of these reactions are often considered to be various NO-dependent modifications (NODMs). The nitrated, nitrosylated, nitrosated, and other NODMs play key roles in the regulation of the most important biochemical processes. In this review, we briefly discuss the metabolic reactions of nitrogen oxides that supply active intermediates for NODMs, the NODM reaction products, and some mechanisms of NODM reparation that allow the recovery of chemically intact biopolymer molecule from a modified (chemically damaged) NODM. For example, residues of 3-nitrotyrosine arising due to the NODM reactions of proteins can be reduced to unsubstituted Tyr residues as a result of alternative NODM reactions through intermediate diazotyrosine derivatives. The heterogeneity of a medium in vivo is an important factor controlling the proceeding of NODM reactions. We showed that many processes determining NODM efficiency proceed differently in the heterogeneous media of organisms and in homogeneous aqueous solutions.
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