1
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Ignasiak-Kciuk M, Nowicka-Bauer K, Grzechowiak M, Ravnsborg T, Frąckowiak K, Jensen ON, Jaskólski M, Marciniak B. Does the presence of ground state complex between a PR-10 protein and a sensitizer affect the mechanism of sensitized photo-oxidation? Free Radic Biol Med 2023; 198:27-43. [PMID: 36738800 DOI: 10.1016/j.freeradbiomed.2023.01.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/12/2023] [Accepted: 01/25/2023] [Indexed: 02/05/2023]
Abstract
The mechanisms of one-electron protein oxidation are complicated and still not well-understood. In this work, we investigated the reaction of sensitized photo-oxidation using carboxybenzophenone (CB) as a sensitizer and a PR-10 protein (MtN13) as a quencher, which is intrinsically complicated due to the complex structure of the protein and multiple possibilities of CB attack. To predict and examine the possible reactions precisely, the 3D structure of the MtN13 protein was taken into account. Our crystallographic studies revealed a specific binding of the CB molecule in the protein's hydrophobic cavity, while mass spectrometry identified the amino acid residues (Met, Tyr, Asp and Phe) creating adducts with the sensitizer, thus indicating the sites of 3CB* quenching. In addition, protein aggregation was also observed. The detailed mechanisms of CB quenching by the MtN13 molecule were elucidated by an analysis of transient products by means of time-resolved spectroscopy. The investigation of the transient and stable products formed during the protein photo-oxidation was based on the data obtained from HPLC-MS analysis of model compounds, single amino acids and dipeptides. Our proposed mechanisms of sensitized protein photo-oxidation emphasize the role of a ground state complex between the protein and the sensitizer and indicate several new and specific products arising as a result of one-electron oxidation. Based on the analysis of the transient and stable products, we have demonstrated the influence of neighboring groups, especially in the case of Tyr oxidation, where the tyrosyl radical can be formed via a direct electron transfer from Tyr to CB* or via an intramolecular electron transfer from Tyr to Met radical cation Met > S●+ or thiyl radical CysS● from neighboring oxidized groups.
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Affiliation(s)
- Marta Ignasiak-Kciuk
- Center for Advanced Technology, Adam Mickiewicz University, Poznan, Poland; Faculty of Chemistry, Adam Mickiewicz University, Poznan, Poland.
| | | | - Marta Grzechowiak
- Institute of Bioorganic Chemistry, Polish Academy of Science, Poznan, Poland
| | - Tina Ravnsborg
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
| | - Kamil Frąckowiak
- Faculty of Chemistry, Adam Mickiewicz University, Poznan, Poland
| | - Ole N Jensen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
| | - Mariusz Jaskólski
- Institute of Bioorganic Chemistry, Polish Academy of Science, Poznan, Poland; Faculty of Chemistry, Adam Mickiewicz University, Poznan, Poland
| | - Bronisław Marciniak
- Center for Advanced Technology, Adam Mickiewicz University, Poznan, Poland; Faculty of Chemistry, Adam Mickiewicz University, Poznan, Poland
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2
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Grzyb K, Frański R, Pedzinski T. Sensitized photoreduction of selected benzophenones. Mass spectrometry studies of radical cross-coupling reactions. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 234:112536. [PMID: 35939915 DOI: 10.1016/j.jphotobiol.2022.112536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 07/11/2022] [Accepted: 07/27/2022] [Indexed: 06/15/2023]
Abstract
The hydrogen atom transfer reaction (HAT) between selected benzophenones (benzophenone BP, 3-carboxybenzophenone 3CB, and 4-carboxybenzophenone 4CB) and 2-propanol was reinvestigated focusing on stable product analysis. As expected, the primary species of these HAT's are the respective diphenyl and dimethyl ketyl radicals that eventually undergo several radical coupling reactions leading to stable photoproducts. However, the mechanisms of these free radical reactions remain unclear and open to question. In this report, we focus on the detailed analysis of the stable photoproducts of these reactions using liquid chromatography coupled with high-resolution mass spectrometry (LC-ESI-QTOF-MS/MS). Products of photopinacolization (benzpinacol and two diastereoisomers of 4CB and 3CB dimers) and isomeric radical cross-coupling adducts of respective diphenyl and dimethyl ketyl radicals were separated chromatographically, and their structures were determined by high-resolution MS/MS, and the mechanisms of the reactions are discussed.
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Affiliation(s)
- Katarzyna Grzyb
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
| | - Rafał Frański
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
| | - Tomasz Pedzinski
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland; Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland.
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3
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Marciniak B, Bobrowski K. Photo- and Radiation-Induced One-Electron Oxidation of Methionine in Various Structural Environments Studied by Time-Resolved Techniques. Molecules 2022; 27:1028. [PMID: 35164293 PMCID: PMC8915190 DOI: 10.3390/molecules27031028] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/26/2022] [Accepted: 01/27/2022] [Indexed: 11/25/2022] Open
Abstract
Oxidation of methionine (Met) is an important reaction that plays a key role in protein modifications during oxidative stress and aging. The first steps of Met oxidation involve the creation of very reactive and short-lived transients. Application of complementary time-resolved radiation and photochemical techniques (pulse radiolysis and laser flash photolysis together with time-resolved CIDNP and ESR techniques) allowed comparing in detail the one-electron oxidation mechanisms initiated either by ●OH radicals and other one-electron oxidants or the excited triplet state of the sensitizers e.g., 4-,3-carboxybenzophenones. The main purpose of this review is to present various factors that influence the character of the forming intermediates. They are divided into two parts: those inextricably related to the structures of molecules containing Met and those related to external factors. The former include (i) the protection of terminal amine and carboxyl groups, (ii) the location of Met in the peptide molecule, (iii) the character of neighboring amino acid other than Met, (iv) the character of the peptide chain (open vs cyclic), (v) the number of Met residues in peptide and protein, and (vi) the optical isomerism of Met residues. External factors include the type of the oxidant, pH, and concentration of Met-containing compounds in the reaction environment. Particular attention is given to the neighboring group participation, which is an essential parameter controlling one-electron oxidation of Met. Mechanistic aspects of oxidation processes by various one-electron oxidants in various structural and pH environments are summarized and discussed. The importance of these studies for understanding oxidation of Met in real biological systems is also addressed.
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Affiliation(s)
- Bronislaw Marciniak
- Center for Advanced Technology, and Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-712 Poznan, Poland
| | - Krzysztof Bobrowski
- Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland
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4
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Morozova OB, Yurkovskaya AV, Sherin PS. Kynurenic acid and its chromophoric core 4-hydroxyquinoline react with tryptophan via proton-coupled electron transfer, and with tyrosine via H-transfer. Phys Chem Chem Phys 2021; 23:22483-22491. [PMID: 34586113 DOI: 10.1039/d1cp03496k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Kynurenic acid (KNA) and 4-hydroxyquinoline (4HQN) are photochemically active products of tryptophan catabolism that readily react with tryptophan (Trp) and tyrosine (Tyr) after optical excitation. Recently, transient absorption experiments have shown that at neutral pH Trp reacts with triplet KNA via proton-coupled electron transfer (PCET), and not via electron transfer (ET) as it was suggested before. PCET includes the stepwise transition of both electrons and protons from Trp to triplet KNA. In this work, we confirmed that PCET is the reaction mechanism by the alternative method of time-resolved chemically induced dynamic nuclear polarization (TR-CIDNP). Further studies by TR-CIDNP revealed hydrogen transfer as the mechanism of the reaction between triplet KNA and Tyr in neutral solutions and a transition of both PCET and H-transfer mechanisms to ET under acidic conditions. 4HQN, being the chromophoric core of KNA, exhibits different spectral and photophysical properties from KNA but employs the same mechanisms for the reactions of its triplet state with Trp and Tyr at neutral and acidic pH.
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Affiliation(s)
- Olga B Morozova
- International Tomography Center, Institutskaya 3a, 630090 Novosibirsk, Russia.
| | | | - Peter S Sherin
- International Tomography Center, Institutskaya 3a, 630090 Novosibirsk, Russia.
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5
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Lapi A, D'Alfonso C, Del Giacco T, Lanzalunga O. Competition Between C α -S and C α -C β Bond Cleavage in β-Hydroxysulfoxides Cation Radicals Generated by Photoinduced Electron Transfer †. Photochem Photobiol 2021; 97:1310-1321. [PMID: 33998681 PMCID: PMC9290654 DOI: 10.1111/php.13455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 05/03/2021] [Accepted: 05/11/2021] [Indexed: 11/28/2022]
Abstract
A kinetic and product study of the 3‐cyano‐N‐methyl‐quinolinium photoinduced monoelectronic oxidation of a series of β‐hydroxysulfoxides has been carried out to investigate the competition between Cα‐S and Cα‐Cβ bond cleavage within the corresponding cation radicals. Laser flash photolysis experiments unequivocally established the formation of sulfoxide cation radicals showing their absorption band (λmax ≈ 520 nm) and that of 3‐CN‐NMQ• (λmax ≈ 390 nm). Steady‐state photolysis experiments suggest that, in contrast to what previously observed for alkyl phenyl sulfoxide cation radicals that exclusively undergo Cα‐S bond cleavage, the presence of a β‐hydroxy group makes, in some cases, the Cα‐Cβ scission competitive. The factors governing this competition seem to depend on the relative stability of the fragments formed from the two bond scissions. Substitution of the β‐OH group with ‐OMe did not dramatically change the reactivity pattern of the cation radicals thus suggesting that the observed favorable effect of the hydroxy group on the Cα‐Cβ bond cleavage mainly resides on its capability to stabilize the carbocation formed upon this scission.
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Affiliation(s)
- Andrea Lapi
- Dipartimento di Chimica, Universita` degli Studi di Roma "La Sapienza", Rome, Italy.,Istituto per i Sistemi Biologici (ISB-CNR), Sede Secondaria di Roma-Meccanismi di Reazione, c/o Dipartimento di Chimica, Universita` degli Studi di Roma "La Sapienza", Rome, Italy
| | - Claudio D'Alfonso
- Dipartimento di Chimica, Universita` degli Studi di Roma "La Sapienza", Rome, Italy
| | - Tiziana Del Giacco
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia, Perugia, Italy.,Centro di Eccellenza Materiali Innovativi Nanostrutturati (CEMIN), Università di Perugia, Perugia, Italy
| | - Osvaldo Lanzalunga
- Dipartimento di Chimica, Universita` degli Studi di Roma "La Sapienza", Rome, Italy.,Istituto per i Sistemi Biologici (ISB-CNR), Sede Secondaria di Roma-Meccanismi di Reazione, c/o Dipartimento di Chimica, Universita` degli Studi di Roma "La Sapienza", Rome, Italy
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6
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Pędzinski T, Grzyb K, Skotnicki K, Filipiak P, Bobrowski K, Chatgilialoglu C, Marciniak B. Radiation- and Photo-Induced Oxidation Pathways of Methionine in Model Peptide Backbone under Anoxic Conditions. Int J Mol Sci 2021; 22:ijms22094773. [PMID: 33946289 PMCID: PMC8125225 DOI: 10.3390/ijms22094773] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/21/2021] [Accepted: 04/27/2021] [Indexed: 01/31/2023] Open
Abstract
Within the reactive oxygen species (ROS) generated by cellular metabolisms, hydroxyl radicals (HO•) play an important role, being the most aggressive towards biomolecules. The reactions of HO• with methionine residues (Met) in peptides and proteins have been intensively studied, but some fundamental aspects remain unsolved. In the present study we examined the biomimetic model made of Ac-Met-OMe, as the simplest model peptide backbone, and of HO• generated by ionizing radiation in aqueous solutions under anoxic conditions. We performed the identification and quantification of transient species by pulse radiolysis and of final products by LC-MS and high-resolution MS/MS after γ-radiolysis. By parallel photochemical experiments, using 3-carboxybenzophenone (CB) triplet with the model peptide, we compared the outcomes in terms of short-lived intermediates and stable product identification. The result is a detailed mechanistic scheme of Met oxidation by HO•, and by CB triplets allowed for assigning transient species to the pathways of products formation.
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Affiliation(s)
- Tomasz Pędzinski
- Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland; (T.P.); (P.F.)
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland;
| | - Katarzyna Grzyb
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland;
| | - Konrad Skotnicki
- Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland;
| | - Piotr Filipiak
- Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland; (T.P.); (P.F.)
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland;
| | - Krzysztof Bobrowski
- Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland;
- Correspondence: (K.B.); (C.C.); (B.M.); Tel.: +48-22-504-1336 (K.B.); +48-61-829-1885 (B.M.)
| | - Chryssostomos Chatgilialoglu
- Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland; (T.P.); (P.F.)
- ISOF, Consiglio Nazionale delle Ricerche, Via P. Gobetti 101, 40129 Bologna, Italy
- Correspondence: (K.B.); (C.C.); (B.M.); Tel.: +48-22-504-1336 (K.B.); +48-61-829-1885 (B.M.)
| | - Bronislaw Marciniak
- Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland; (T.P.); (P.F.)
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland;
- Correspondence: (K.B.); (C.C.); (B.M.); Tel.: +48-22-504-1336 (K.B.); +48-61-829-1885 (B.M.)
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7
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Ignasiak M, Nowicka-Bauer K, Grzechowiak M, Sikorski M, Shashikadze B, Jaskolski M, Marciniak B. Sensitized photo-oxidation of plant cytokinin-specific binding protein - Does the environment of the thioether group influence the oxidation reaction? From primary intermediates to stable products. Free Radic Biol Med 2021; 165:411-420. [PMID: 33581275 DOI: 10.1016/j.freeradbiomed.2021.02.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/28/2021] [Accepted: 02/01/2021] [Indexed: 11/26/2022]
Abstract
The reactions of protein oxidation play a significant role in many biological processes, especially in diseases development. Therefore, it is important to understand, how the protein molecule behaves in the presence of oxidants. In the present work, photo-oxidation of phytohormone-binding plant protein (VrPhBP) was investigated using light and 3-carboxybenzophenone (3CB) as a sensitizer (one electron oxidant). The protein interacts with the sensitizer in the ground state forming a weak binding complex leading to the presence of bound and free 3CB in solution. The early events and transient species (such as radicals and radical ions) formed during irradiation were characterised by transient spectroscopy showing the formation of the sulphur radical cation Met>S●+ (stabilized by (S∴N)+)and the tyrosyl radical TyrO● on VrPhBP. Thus the 3CB excited triplet state was quenched by the Met and Tyr residues and mostly by Met (based on the deconvoluted transient absorption spectra).The presence of a Tyr side chain in the vicinity of a Met residue results in intramolecular electron transfer from Tyr to the Met>S●+ radical cation, leading to regeneration of the thioether side chain and formation of TyrO●. The presence of other side chains close to Met, such as Arg or Lys can induce the stabilization of Met>S●+ via the formation of two-centered three-electron bonded species (S∴N)+. The transient species were additionally confirmed by stable product analysis. Based on SDS-PAGE, chromatography and mass spectrometry, the formation of methionine sulphoxide and Met-3CB adduct was identified together with di-Tyr cross links. On the basis of the experimental results the overall mechanism of VrPhBP photo-oxidation, from its early events to the formation of stable products, is described. In addition, a good correlation between the mechanisms of photooxidation of model compounds such as Met derivatives and peptides and those for real biological systems is emphasized.
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Affiliation(s)
- Marta Ignasiak
- Faculty of Chemistry, Adam Mickiewicz University, And Center for Advanced Technology, Poznan, Poland.
| | - Karolina Nowicka-Bauer
- Faculty of Chemistry, Adam Mickiewicz University, And Center for Advanced Technology, Poznan, Poland
| | - Marta Grzechowiak
- Institute of Bioorganic Chemistry, Polish Academy of Science, Poznan, Poland
| | - Michał Sikorski
- Institute of Bioorganic Chemistry, Polish Academy of Science, Poznan, Poland
| | - Bachuki Shashikadze
- Institute of Bioorganic Chemistry, Polish Academy of Science, Poznan, Poland; Gene Center, Ludwig-Maximilians University, Munich, Germany
| | - Mariusz Jaskolski
- Faculty of Chemistry, Adam Mickiewicz University, And Center for Advanced Technology, Poznan, Poland; Institute of Bioorganic Chemistry, Polish Academy of Science, Poznan, Poland
| | - Bronislaw Marciniak
- Faculty of Chemistry, Adam Mickiewicz University, And Center for Advanced Technology, Poznan, Poland
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8
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Pedzinski T, Grzyb K, Kaźmierczak F, Frański R, Filipiak P, Marciniak B. Early Events of Photosensitized Oxidation of Sulfur-Containing Amino Acids Studied by Laser Flash Photolysis and Mass Spectrometry. J Phys Chem B 2020; 124:7564-7573. [PMID: 32790392 PMCID: PMC7498160 DOI: 10.1021/acs.jpcb.0c06008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
![]()
The
mechanism of photooxidation of methionine (N-Ac-Met-NH-CH3, 1) and methyl-cysteine (N-Ac-MeCys-NH-CH3, 2) analogues by 3-carboxybenzophenone triplet
(3CB*) in neutral aqueous solution was studied using techniques of
nanosecond laser flash photolysis and steady-state photolysis. The
short-lived transients derived from 3CB and sulfur-containing amino
acids were identified, and their quantum yields and kinetics of formation
and decay were determined. The stable photoproducts were analyzed
using liquid chromatography coupled with high-resolution mass spectrometry.
Substantial differences in the mechanisms were found for methionine
and S-methyl-cysteine analogues for both primary
and secondary photoreactions. A new secondary reaction channel (back
hydrogen atom transfer from the ketyl radical to the carbon-centered
α-thioalkyl radical yielding reactants in the ground states)
was suggested. The detailed mechanisms of 3CB* sensitized photooxidation
of 1 and 2 are proposed and discussed.
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Affiliation(s)
- Tomasz Pedzinski
- Center for Advanced Technology, Adam Mickiewicz University, 10 Uniwersytetu Poznanskiego Str., 61-614 Poznan, Poland.,Faculty of Chemistry, Adam Mickiewicz University, 8 Uniwersytetu Poznanskiego Str., 61-614 Poznan, Poland
| | - Katarzyna Grzyb
- Faculty of Chemistry, Adam Mickiewicz University, 8 Uniwersytetu Poznanskiego Str., 61-614 Poznan, Poland
| | - Franciszek Kaźmierczak
- Faculty of Chemistry, Adam Mickiewicz University, 8 Uniwersytetu Poznanskiego Str., 61-614 Poznan, Poland
| | - Rafał Frański
- Faculty of Chemistry, Adam Mickiewicz University, 8 Uniwersytetu Poznanskiego Str., 61-614 Poznan, Poland
| | - Piotr Filipiak
- Center for Advanced Technology, Adam Mickiewicz University, 10 Uniwersytetu Poznanskiego Str., 61-614 Poznan, Poland.,Faculty of Chemistry, Adam Mickiewicz University, 8 Uniwersytetu Poznanskiego Str., 61-614 Poznan, Poland
| | - Bronislaw Marciniak
- Center for Advanced Technology, Adam Mickiewicz University, 10 Uniwersytetu Poznanskiego Str., 61-614 Poznan, Poland.,Faculty of Chemistry, Adam Mickiewicz University, 8 Uniwersytetu Poznanskiego Str., 61-614 Poznan, Poland
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9
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Unexpected Reaction Pathway of the Alpha-Aminoalkyl Radical Derived from One-Electron Oxidation of S-Alkylglutathiones. Molecules 2020; 25:molecules25040877. [PMID: 32079230 PMCID: PMC7070667 DOI: 10.3390/molecules25040877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 02/11/2020] [Accepted: 02/12/2020] [Indexed: 11/17/2022] Open
Abstract
Laser flash photolysis and high-resolution mass spectrometry were used to investigate the mechanism of one-electron oxidation of two S-alkylglutathiones using 3-carboxybenzophenone (3CB) as a photosensitizer. This report indicates an unexpected reaction pathway of the α-aminoalkyl radical cation (αN+) derived from the oxidation of S-alkylglutathiones. Instead of a common hydrolysis reaction of αN+ reported earlier for methionine and other sulfur-containing aminoacids and peptides, an intramolecular ring-closure reaction was found for S-alkylglutathiones.
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10
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Photo-induced protein oxidation: mechanisms, consequences and medical applications. Essays Biochem 2019; 64:33-44. [DOI: 10.1042/ebc20190044] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 11/20/2019] [Accepted: 11/25/2019] [Indexed: 01/10/2023]
Abstract
Abstract
Irradiation from the sun has played a crucial role in the origin and evolution of life on the earth. Due to the presence of ozone in the stratosphere most of the hazardous irradiation is absorbed, nonetheless UVB, UVA, and visible light reach the earth’s surface. The high abundance of proteins in most living organisms, and the presence of chromophores in the side chains of certain amino acids, explain why these macromolecules are principal targets when biological systems are illuminated. Light absorption triggers the formation of excited species that can initiate photo-modification of proteins. The major pathways involve modifications derived from direct irradiation and photo-sensitized reactions. In this review we explored the basic concepts behind these photochemical pathways, with special emphasis on the photosensitized mechanisms (type 1 and type 2) leading to protein oxidation, and how this affects protein structure and functions. Finally, a description of the photochemical reactions involved in some human diseases, and medical applications of protein oxidation are presented.
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11
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•OH oxidation of methionine in the presence of discrete water molecules: DFT, QTAIM and valence bond analyses. Struct Chem 2019. [DOI: 10.1007/s11224-019-01438-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Archirel P, Houée-Lévin C, Marignier JL. Radiolytic Oxidation of Two Inverse Dipeptides, Methionine-Valine and Valine-Methionine: A Joint Experimental and Computational Study. J Phys Chem B 2019; 123:9087-9097. [PMID: 31577444 DOI: 10.1021/acs.jpcb.9b07014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The two inverse peptides methionine-valine (Met-Val) and valine-methionine (Val-Met) are investigated in an oxidative radiolysis process in water. The OH radical yields products with very different absorption spectra and concentration effects: Met-Val yields one main product with a band at about 400 nm and other products at higher energies; there is no concentration effect. Val-Met yields at least three products, with a striking concentration effect. Molecular simulations are performed with a combination of the Monte Carlo, density functional theory, and reaction field methods. The simulation of the possible transients enables an interpretation of the radiolysis: (1) Met-Val undergoes an H atom uptake leaving mainly a neutral radical with a 2-center-3-electron (2c-3e) SN bond, which cannot dimerize. Other radicals are present at higher energies. (2) Val-Met undergoes mainly an electron uptake leaving a cation monomer with a (2c-3e) SO bond and a cation dimer with a (2c-3e) SS bond. At higher energies, neutral radicals are possible. This cation monomer can transfer a proton toward a neutral peptide, leaving a neutral radical.
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Affiliation(s)
- Pierre Archirel
- Laboratoire de Chimie Physique , CNRS UMR 8000, Université Paris-Sud, Université Paris-Saclay , F91405 Orsay , France
| | - Chantal Houée-Lévin
- Laboratoire de Chimie Physique , CNRS UMR 8000, Université Paris-Sud, Université Paris-Saclay , F91405 Orsay , France
| | - Jean-Louis Marignier
- Laboratoire de Chimie Physique , CNRS UMR 8000, Université Paris-Sud, Université Paris-Saclay , F91405 Orsay , France
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13
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Sulfur Radicals and Their Application. Top Curr Chem (Cham) 2018; 376:22. [DOI: 10.1007/s41061-018-0197-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 04/11/2018] [Indexed: 12/11/2022]
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14
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Filipiak P, Bobrowski K, Hug GL, Pogocki D, Schöneich C, Marciniak B. New Insights into the Reaction Paths of 4-Carboxybenzophenone Triplet with Oligopeptides Containing N- and C-Terminal Methionine Residues. J Phys Chem B 2017; 121:5247-5258. [DOI: 10.1021/acs.jpcb.7b01119] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Piotr Filipiak
- Faculty
of Chemistry, Adam Mickiewicz University, 61-614 Poznan, Poland
| | - Krzysztof Bobrowski
- Institute of Nuclear Chemistry and Technology, 03-195 Warsaw, Poland
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Gordon L. Hug
- Faculty
of Chemistry, Adam Mickiewicz University, 61-614 Poznan, Poland
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Dariusz Pogocki
- Medicinal
Chemistry Department, Institute of Biotechnology, University of Rzeszow, 35-959 Rzeszow, Poland
| | - Christian Schöneich
- School
of Pharmacy, Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
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16
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Scuderi D, Bergès J, de Oliveira P, Houée-Levin C. Methionine one-electron oxidation: Coherent contributions from radiolysis, IRMPD spectroscopy, DFT calculations and electrochemistry. Radiat Phys Chem Oxf Engl 1993 2016. [DOI: 10.1016/j.radphyschem.2016.05.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Filipiak P, Bobrowski K, Hug GL, Pogocki D, Schöneich C, Marciniak B. Formation of a Three-Electron Sulfur–Sulfur Bond as a Probe for Interaction between Side Chains of Methionine Residues. J Phys Chem B 2016; 120:9732-44. [DOI: 10.1021/acs.jpcb.6b06494] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Piotr Filipiak
- Faculty
of Chemistry, Adam Mickiewicz University, 61-614 Poznan, Poland
| | - Krzysztof Bobrowski
- Institute of Nuclear Chemistry and Technology, 03-195 Warsaw, Poland
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Gordon L. Hug
- Faculty
of Chemistry, Adam Mickiewicz University, 61-614 Poznan, Poland
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Dariusz Pogocki
- Faculty
of Biology and Agriculture, University of Rzeszow, 35-601 Rzeszow, Poland
| | - Christian Schöneich
- School
of Pharmacy, Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
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18
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Köchling T, Morozova OB, Yurkovskaya AV, Vieth HM. Magnetic Resonance Characterization of One-Electron Oxidized Cyclic Dipeptides with Thioether Groups. J Phys Chem B 2016; 120:9277-86. [DOI: 10.1021/acs.jpcb.6b05442] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Talea Köchling
- Institut
für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Olga B. Morozova
- International Tomography Center, Institutskaya
3a, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
2, 630090 Novosibirsk, Russia
| | - Alexandra V. Yurkovskaya
- International Tomography Center, Institutskaya
3a, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
2, 630090 Novosibirsk, Russia
| | - Hans-Martin Vieth
- Institut
für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
- International Tomography Center, Institutskaya
3a, 630090 Novosibirsk, Russia
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19
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Scuderi D, Ignasiak MT, Serfaty X, de Oliveira P, Houée Levin C. Tandem mass spectrometry and infrared spectroscopy as a tool to identify peptide oxidized residues. Phys Chem Chem Phys 2016; 17:25998-6007. [PMID: 26292724 DOI: 10.1039/c5cp03223g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The final products obtained by the oxidation of small model peptides containing the thioether function, either methionine or S-methyl cysteine, have been characterized by tandem mass spectrometry and IR Multiple Photon Dissociation (IRMPD) spectroscopy. The modified positions have been clearly identified by the CID-MS(2) fragmentation mass spectra with or without loss of sulfenic acid, as well as by the vibrational signature of the sulfoxide bond at around 1000 cm(-1). The oxidation of the thioether function did not lead to the same products in these model peptides. The sulfoxide and sulfone (to a lesser extent) have been clearly identified as final products of the oxidation of S-methyl-glutathione (GS-Me). Decarboxylation or hydrogen loss are the major oxidation pathways in GS-Me, while they have not been observed in tryptophan-methionine and methionine-tryptophan (Trp-Met and Met-Trp). Interestingly, tryptophan is oxidized in the dipeptide Met-Trp, while that is not the case in the reverse sequence (Trp-Met).
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Affiliation(s)
- D Scuderi
- Laboratoire de Chimie Physique, Université Paris Sud, 91405 Orsay Cedex, France.
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20
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Morozova OB, Panov MS, Vieth HM, Yurkovskaya AV. CIDNP study of sensitized photooxidation of S-methylcysteine and S-methylglutathione in aqueous solution. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2016.01.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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