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Vacek J, Zatloukalová M, Dorčák V, Cifra M, Futera Z, Ostatná V. Electrochemistry in sensing of molecular interactions of proteins and their behavior in an electric field. Mikrochim Acta 2023; 190:442. [PMID: 37847341 PMCID: PMC10582152 DOI: 10.1007/s00604-023-05999-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 09/12/2023] [Indexed: 10/18/2023]
Abstract
Electrochemical methods can be used not only for the sensitive analysis of proteins but also for deeper research into their structure, transport functions (transfer of electrons and protons), and sensing their interactions with soft and solid surfaces. Last but not least, electrochemical tools are useful for investigating the effect of an electric field on protein structure, the direct application of electrochemical methods for controlling protein function, or the micromanipulation of supramolecular protein structures. There are many experimental arrangements (modalities), from the classic configuration that works with an electrochemical cell to miniaturized electrochemical sensors and microchip platforms. The support of computational chemistry methods which appropriately complement the interpretation framework of experimental results is also important. This text describes recent directions in electrochemical methods for the determination of proteins and briefly summarizes available methodologies for the selective labeling of proteins using redox-active probes. Attention is also paid to the theoretical aspects of electron transport and the effect of an external electric field on the structure of selected proteins. Instead of providing a comprehensive overview, we aim to highlight areas of interest that have not been summarized recently, but, at the same time, represent current trends in the field.
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Affiliation(s)
- Jan Vacek
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, 77515, Olomouc, Czech Republic.
| | - Martina Zatloukalová
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, 77515, Olomouc, Czech Republic
| | - Vlastimil Dorčák
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, 77515, Olomouc, Czech Republic
| | - Michal Cifra
- Institute of Photonics and Electronics of the Czech Academy of Sciences, Chaberska 1014/57, 18200, Prague, Czech Republic
| | - Zdeněk Futera
- Faculty of Science, University of South Bohemia, Branisovska 1760, 37005, Ceske Budejovice, Czech Republic
| | - Veronika Ostatná
- Institute of Biophysics, The Czech Academy of Sciences, v.v.i., Kralovopolska 135, 61200, Brno, Czech Republic
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2
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Melníková E, Galicová T, Gál M, Ostatná V. Chronopotentiometric Analysis of Single Histones and Histone Octamer at Charged Surfaces. ChemElectroChem 2021. [DOI: 10.1002/celc.202100817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Eva Melníková
- Department of Inorganic Technology Slovak University of Technology Faculty of Chemical and Food Technology Radlinského 9 812 37 Bratislava Slovakia
| | - Tatiana Galicová
- Institute of Biophysics of the Czech Academy of Sciences Královopolská 135 61265 Brno Czech Republic
- Department of Biochemistry Faculty of Science Masaryk University Kotlářská 2 61137 Brno Czech Republic
| | - Miroslav Gál
- Department of Inorganic Technology Slovak University of Technology Faculty of Chemical and Food Technology Radlinského 9 812 37 Bratislava Slovakia
| | - Veronika Ostatná
- Institute of Biophysics of the Czech Academy of Sciences Královopolská 135 61265 Brno Czech Republic
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3
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Novák D, Vrba J, Zatloukalová M, Roubalová L, Stolarczyk K, Dorčák V, Vacek J. Cysteamine assay for the evaluation of bioactive electrophiles. Free Radic Biol Med 2021; 164:381-389. [PMID: 33429019 DOI: 10.1016/j.freeradbiomed.2021.01.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 01/04/2021] [Accepted: 01/05/2021] [Indexed: 11/20/2022]
Abstract
Covalent modifications of thiol and amine groups may control the function of proteins involved in the regulatory and signaling pathways of the cell. In this study, we developed a simple cysteamine assay which can be used to study the reactivity of electrophilic compounds towards primary amine and thiol groups in an aqueous environment. The detection principle is based on the electrochemical, photometrical and mass spectrometric analyses of cysteamine (2-aminoethanethiol) as the molecular probe. This technique is useful for studying the reaction kinetics of electrophiles with thiol (SH) and amino (NH2) groups. The decrease in analytical responses of cysteamine was monitored to evaluate the reactivity of three electrophilic activators of the Nrf2 pathway, which mediates the cellular stress response. The SH-reactivity under cell-free conditions of the tested electrophiles decreased in the following order: 4-hydroxy-2-nonenal ≥ nitro-oleic acid > sulforaphane. However, as shown in RAW264.7 cells, the tested compounds activated Nrf2-dependent gene expression in the opposite order: sulforaphane > nitro-oleic acid ≥ 4-hydroxy-2-nonenal. Although other factors in addition to chemical reactivity play a role in biological systems, we conclude that this cysteamine assay is a useful tool for screening potentially bioactive electrophiles and for studying their reactivity at a molecular level.
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Affiliation(s)
- David Novák
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, Olomouc, 77515, Czech Republic
| | - Jiří Vrba
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, Olomouc, 77515, Czech Republic.
| | - Martina Zatloukalová
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, Olomouc, 77515, Czech Republic
| | - Lenka Roubalová
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, Olomouc, 77515, Czech Republic
| | - Krzysztof Stolarczyk
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, Olomouc, 77515, Czech Republic; Faculty of Chemistry, University of Warsaw, 1 Pasteura Street, 02-093, Warsaw, Poland
| | - Vlastimil Dorčák
- The Czech Academy of Sciences, Institute of Biophysics, Kralovopolska 135, Brno, 612 65, Czech Republic
| | - Jan Vacek
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, Olomouc, 77515, Czech Republic; The Czech Academy of Sciences, Institute of Biophysics, Kralovopolska 135, Brno, 612 65, Czech Republic.
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4
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Dorčák V, Černocká H, Paleček E. Bovine Serum Albumin Catalysed Hydrogen and Deuterium Evolution at Mercury Electrodes. Chempluschem 2020; 85:1596-1601. [PMID: 33210475 DOI: 10.1002/cplu.202000348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/04/2020] [Indexed: 11/09/2022]
Abstract
The hydrogen evolution reaction (HER), catalysed by proteins at mercury electrodes and reflected in chronopotentiometric stripping peak H, provides a label-free and reagentless analytical technique that is sensitive to protein structure. Here we show how the kinetic isotope effect affected the HER catalysed by the protein bovine serum albumin (BSA). We found that the deuteron bond, which is stronger than that of a proton, contributed to less effective transport of deuterons mediated by BSA at the Hg|D2 O interface, and enhanced structural stability of the surface-attached native BSA in D2 O solution. A structural transition was also observed in the surface-attached urea-denatured BSA, and is probably due to the destabilisation of some secondary structural remnants retained by the 17 SS-bonds. Because the catalytically active groups involved in proton or deuteron transfer in native proteins are often exposed towards solutions and their protons exchange almost instantly, no signs of H/D exchange were observed in native BSA using peak H under the given conditions.
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Affiliation(s)
- Vlastimil Dorčák
- Department of Biophysical Chemistry and Molecular Oncology, Institute of Biophysics of the Czech Academy of Sciences, v.v.i., Kralovopolska 135, 612 65, Brno, Czech Republic
| | - Hana Černocká
- Department of Biophysical Chemistry and Molecular Oncology, Institute of Biophysics of the Czech Academy of Sciences, v.v.i., Kralovopolska 135, 612 65, Brno, Czech Republic
| | - Emil Paleček
- Department of Biophysical Chemistry and Molecular Oncology, Institute of Biophysics of the Czech Academy of Sciences, v.v.i., Kralovopolska 135, 612 65, Brno, Czech Republic
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5
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Ostatná V, West RM. Effects of ex situ chronopotentiometric analysis on stability of bovine serum albumin on mercury electrodes. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.113884] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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6
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Ilimbi D, Buess‐Herman C, Doneux T. Chronopotentiometry as a Sensitive Interfacial Characterisation Tool for Peptide Aptamer Monolayers. ELECTROANAL 2019. [DOI: 10.1002/elan.201900285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Diane Ilimbi
- Chemistry of Surfaces, Interfaces and Nanomaterials, Faculté des SciencesUniversité libre de Bruxelles (ULB) Boulevard du Triomphe 2, CP 255 B-1050 Bruxelles Belgium
| | - Claudine Buess‐Herman
- Chemistry of Surfaces, Interfaces and Nanomaterials, Faculté des SciencesUniversité libre de Bruxelles (ULB) Boulevard du Triomphe 2, CP 255 B-1050 Bruxelles Belgium
| | - Thomas Doneux
- Chemistry of Surfaces, Interfaces and Nanomaterials, Faculté des SciencesUniversité libre de Bruxelles (ULB) Boulevard du Triomphe 2, CP 255 B-1050 Bruxelles Belgium
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7
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Kroutil O, Kabeláč M, Dorčák V, Vacek J. Structures of Peptidic H‐wires at Mercury Surface: Molecular Dynamics Study. ELECTROANAL 2019. [DOI: 10.1002/elan.201900314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Ondřej Kroutil
- Institute of Physics and Biophysics, Faculty of ScienceUniversity of South Bohemia Branisovska 1760 370 05 Ceske Budejovice Czech Republic
| | - Martin Kabeláč
- Department of Chemistry, Faculty of ScienceUniversity of South Bohemia Branisovska 31 370 05 Ceske Budejovice Czech Republic
| | - Vlastimil Dorčák
- Institute of Biophysics of the CAS Kralovopolska 135 612 65 Brno Czech Republic
| | - Jan Vacek
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and DentistryPalacky University Hnevotinska 3 775 15 Olomouc Czech Republic
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8
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Melníková E, Izadi N, Gál M, Ostatná V. Chronopotentiometric Analysis of Proteins at Charged Electrode Surfaces. ELECTROANAL 2019. [DOI: 10.1002/elan.201900239] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Eva Melníková
- Slovak University of Technology, Faculty of Chemical and Food TechnologyDepartment of Inorganic Technology Radlinského 9 812 37 Bratislava Slovakia
| | - Nasim Izadi
- Institute of Biophysics of the Czech Academy of Sciences Královopolská 135 61265 Brno Czech Republic
- Department of Experimental Biology, Faculty of ScienceMasaryk University Kotlářská 2 61137 Brno Czech Republic
| | - Miroslav Gál
- Slovak University of Technology, Faculty of Chemical and Food TechnologyDepartment of Inorganic Technology Radlinského 9 812 37 Bratislava Slovakia
| | - Veronika Ostatná
- Institute of Biophysics of the Czech Academy of Sciences Královopolská 135 61265 Brno Czech Republic
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9
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Ostatná V, Hasoň S, Kasalová V, Ďurech M, Hrstka R. Anterior gradient-3 protein-antibody interaction at charged interfaces. Label-free chronopotentiometric sensing. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.12.049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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10
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Paleček E, Heyrovský M, Dorčák V. J. Heyrovský's Oscillographic Polarography. Roots of Present Chronopotentiometric Analysis of Biomacromolecules. ELECTROANAL 2018. [DOI: 10.1002/elan.201800109] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Emil Paleček
- Institute of Biophysics of the CAS; Královopolská 135 612 65 Brno Czech Republic
| | - Michael Heyrovský
- J. Heyrovský Institute of Physical Chemistry of the CAS; Dolejškova 2155/3 182 23 Prague 8 Czech Republic
| | - Vlastimil Dorčák
- Institute of Biophysics of the CAS; Královopolská 135 612 65 Brno Czech Republic
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11
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Kasalová V, Hrstka R, Hernychová L, Coufalová D, Ostatná V. Chronopotentiometric sensing of anterior gradient 2 protein. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.04.090] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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12
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Vacek J, Zatloukalova M, Geleticova J, Kubala M, Modriansky M, Fekete L, Masek J, Hubatka F, Turanek J. Electrochemical Platform for the Detection of Transmembrane Proteins Reconstituted into Liposomes. Anal Chem 2016; 88:4548-56. [DOI: 10.1021/acs.analchem.6b00618] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Jan Vacek
- Department
of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, 775 15 Olomouc, Czech Republic
| | - Martina Zatloukalova
- Department
of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, 775 15 Olomouc, Czech Republic
| | - Jaroslava Geleticova
- Department
of Biophysics, Centre of the Region Hana for Biotechnological and
Agricultural Research, Faculty of Science, Palacky University, Slechtitelu 27, 783 71 Olomouc, Czech Republic
| | - Martin Kubala
- Department
of Biophysics, Centre of the Region Hana for Biotechnological and
Agricultural Research, Faculty of Science, Palacky University, Slechtitelu 27, 783 71 Olomouc, Czech Republic
| | - Martin Modriansky
- Department
of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, 775 15 Olomouc, Czech Republic
| | - Ladislav Fekete
- Institute
of Physics, Academy of Sciences of the Czech Republic, Na Slovance
2, 18221 Prague, Czech Republic
| | - Josef Masek
- Department
of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i.,
Hudcova 70, 621 00 Brno, Czech Republic
| | - Frantisek Hubatka
- Department
of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i.,
Hudcova 70, 621 00 Brno, Czech Republic
| | - Jaroslav Turanek
- Department
of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i.,
Hudcova 70, 621 00 Brno, Czech Republic
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13
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Fast-scan cyclic voltammetry with thiol-modified mercury electrodes distinguishes native from denatured BSA. Electrochem commun 2015. [DOI: 10.1016/j.elecom.2015.10.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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14
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Paleček E, Tkáč J, Bartošík M, Bertók T, Ostatná V, Paleček J. Electrochemistry of nonconjugated proteins and glycoproteins. Toward sensors for biomedicine and glycomics. Chem Rev 2015; 115:2045-108. [PMID: 25659975 PMCID: PMC4360380 DOI: 10.1021/cr500279h] [Citation(s) in RCA: 215] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Indexed: 02/07/2023]
Affiliation(s)
- Emil Paleček
- Institute
of Biophysics Academy of Science of the Czech Republic, v.v.i., Královopolská
135, 612 65 Brno, Czech Republic
| | - Jan Tkáč
- Institute
of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, 845 38 Bratislava, Slovakia
| | - Martin Bartošík
- Regional
Centre for Applied Molecular Oncology, Masaryk
Memorial Cancer Institute, Žlutý kopec 7, 656 53 Brno, Czech Republic
| | - Tomáš Bertók
- Institute
of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, 845 38 Bratislava, Slovakia
| | - Veronika Ostatná
- Institute
of Biophysics Academy of Science of the Czech Republic, v.v.i., Královopolská
135, 612 65 Brno, Czech Republic
| | - Jan Paleček
- Central
European Institute of Technology, Masaryk
University, Kamenice
5, 625 00 Brno, Czech Republic
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15
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Dorčák V, Vargová V, Ostatná V, Paleček E. Lysine, Arginine, and Histidine Residues in Peptide-Catalyzed Hydrogen Evolution at Mercury Electrodes. ELECTROANAL 2015. [DOI: 10.1002/elan.201400644] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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16
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He S, Huang M, Ye W, Chen D, He S, Ding L, Yao Y, Wan L, Xu J, Miao S. Conformational Change of Bovine Serum Albumin Molecules at Neutral pH in Ultra-Diluted Aqueous Solutions. J Phys Chem B 2014; 118:12207-14. [DOI: 10.1021/jp5081115] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Shulian He
- Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering, School of Chemical Engineering, Hefei University of Technology, Tunxi Road 193, 230009, Hefei, Anhui, China
| | - Mei Huang
- Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering, School of Chemical Engineering, Hefei University of Technology, Tunxi Road 193, 230009, Hefei, Anhui, China
| | - Wei Ye
- Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering, School of Chemical Engineering, Hefei University of Technology, Tunxi Road 193, 230009, Hefei, Anhui, China
| | - Dechao Chen
- Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering, School of Chemical Engineering, Hefei University of Technology, Tunxi Road 193, 230009, Hefei, Anhui, China
| | - Shuai He
- Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering, School of Chemical Engineering, Hefei University of Technology, Tunxi Road 193, 230009, Hefei, Anhui, China
| | - Liping Ding
- Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering, School of Chemical Engineering, Hefei University of Technology, Tunxi Road 193, 230009, Hefei, Anhui, China
| | - Yunjin Yao
- Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering, School of Chemical Engineering, Hefei University of Technology, Tunxi Road 193, 230009, Hefei, Anhui, China
| | - Lei Wan
- Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering, School of Chemical Engineering, Hefei University of Technology, Tunxi Road 193, 230009, Hefei, Anhui, China
| | - Jinzhang Xu
- Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering, School of Chemical Engineering, Hefei University of Technology, Tunxi Road 193, 230009, Hefei, Anhui, China
| | - Shiding Miao
- Anhui Key Lab of Controllable Chemical Reaction & Material Chemical Engineering, School of Chemical Engineering, Hefei University of Technology, Tunxi Road 193, 230009, Hefei, Anhui, China
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17
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Večerková R, Hernychová L, Dobeš P, Vrba J, Josypčuk B, Bartošík M, Vacek J. Investigation of protein FTT1103 electroactivity using carbon and mercury electrodes. Surface-inhibition approach for disulfide oxidoreductases using silver amalgam powder. Anal Chim Acta 2014; 830:23-31. [PMID: 24856508 DOI: 10.1016/j.aca.2014.04.056] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 04/22/2014] [Accepted: 04/28/2014] [Indexed: 10/25/2022]
Abstract
Recently, it was shown that electrochemical methods can be used for analysis of poorly water-soluble proteins and for study of their structural changes and intermolecular (protein-ligand) interactions. In this study, we focused on complex electrochemical investigation of recombinant protein FTT1103, a disulfide oxidoreductase with structural similarity to well described DsbA proteins. This thioredoxin-like periplasmic lipoprotein plays an important role in virulence of bacteria Francisella tularensis. For electrochemical analyses, adsorptive transfer (ex situ) square-wave voltammetry with pyrolytic graphite electrode, and alternating-current voltammetry and constant-current chronopotentiometric stripping analysis with mercury electrodes, including silver solid amalgam electrode (AgSAE) were used. AgSAE was used in poorly water-soluble protein analysis for the first time. In addition to basic redox, electrocatalytic and adsorption/desorption characterization of FTT1103, electrochemical methods were also used for sensitive determination of the protein at nanomolar level and study of its interaction with surface of AgSA microparticles. Proposed electrochemical protocol and AgSA surface-inhibition approach presented here could be used in future for biochemical studies focused on proteins associated with membranes as well as on those with disulfide oxidoreductase activity.
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Affiliation(s)
- Renata Večerková
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hnevotinska 3, Olomouc 775 15, Czech Republic
| | - Lenka Hernychová
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Zluty kopec 7, Brno 656 53, Czech Republic
| | - Petr Dobeš
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Zluty kopec 7, Brno 656 53, Czech Republic
| | - Jiří Vrba
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hnevotinska 3, Olomouc 775 15, Czech Republic
| | - Bohdan Josypčuk
- J. Heyrovský Institute of Physical Chemistry of AS CR, v.v.i., Department of Biomimetic Electrochemistry, Dolejskova 3, Prague 182 23, Czech Republic
| | - Martin Bartošík
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Zluty kopec 7, Brno 656 53, Czech Republic
| | - Jan Vacek
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hnevotinska 3, Olomouc 775 15, Czech Republic.
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18
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Kurzątkowska K, Ostatná V, Hamley IW, Doneux T, Paleček E. Electrochemical sensing of 2D condensation in amyloid peptides. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.05.057] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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19
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Vargová V, Zivanović M, Dorčák V, Paleček E, Ostatná V. Catalysis of Hydrogen Evolution by Polylysine, Polyarginine and Polyhistidine at Mercury Electrodes. ELECTROANAL 2013. [DOI: 10.1002/elan.201300170] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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20
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Černocká H, Ostatná V, Paleček E. Enzymatic activity and catalytic hydrogen evolution in reduced and oxidized urease at mercury surfaces. Anal Chim Acta 2013; 789:41-6. [DOI: 10.1016/j.aca.2013.06.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Revised: 06/08/2013] [Accepted: 06/16/2013] [Indexed: 10/26/2022]
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21
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Electrochemical reduction and oxidation signals of angiotensin peptides. Role of individual amino acid residues. Electrochem commun 2013. [DOI: 10.1016/j.elecom.2013.03.016] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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22
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Vacek J, Zatloukalova M, Havlikova M, Ulrichova J, Kubala M. Changes in the intrinsic electrocatalytic nature of Na+/K+ ATPase reflect structural changes on ATP-binding: Electrochemical label-free approach. Electrochem commun 2013. [DOI: 10.1016/j.elecom.2012.11.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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23
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Electrocatalytic oxidation of tyrosines shows signal enhancement in label-free protein biosensors. Trends Analyt Chem 2012. [DOI: 10.1016/j.trac.2012.07.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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24
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Ostatná V, Černocká H, Paleček E. Simple protein structure-sensitive chronopotentiometric analysis with dithiothreitol-modified Hg electrodes. Bioelectrochemistry 2012; 87:84-8. [DOI: 10.1016/j.bioelechem.2012.01.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Revised: 01/02/2012] [Accepted: 01/09/2012] [Indexed: 12/17/2022]
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Borsarelli CD, Falomir-Lockhart LJ, Ostatná V, Fauerbach JA, Hsiao HH, Urlaub H, Paleček E, Jares-Erijman EA, Jovin TM. Biophysical properties and cellular toxicity of covalent crosslinked oligomers of α-synuclein formed by photoinduced side-chain tyrosyl radicals. Free Radic Biol Med 2012; 53:1004-15. [PMID: 22771470 DOI: 10.1016/j.freeradbiomed.2012.06.035] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Revised: 06/20/2012] [Accepted: 06/25/2012] [Indexed: 12/30/2022]
Abstract
Alpha-synuclein (αS), a 140 amino acid presynaptic protein, is the major component of the fibrillar aggregates (Lewy bodies) observed in dopaminergic neurons of patients affected by Parkinson's disease. It is currently believed that noncovalent oligomeric forms of αS, arising as intermediates in its aggregation, may constitute the major neurotoxic species. However, attempts to isolate and characterize such oligomers in vitro, and even more so in living cells, have been hampered by their transient nature, low concentration, polymorphism, and inherent instability. In this work, we describe the preparation and characterization of low molecular weight covalently bound oligomeric species of αS obtained by crosslinking via tyrosyl radicals generated by blue-light photosensitization of the metal coordination complex ruthenium (II) tris-bipyridine in the presence of ammonium persulfate. Numerous analytical techniques were used to characterize the αS oligomers: biochemical (anion-exchange chromatography, SDS-PAGE, and Western blotting); spectroscopic (optical: UV/Vis absorption, steady state, dynamic fluorescence, and dynamic light scattering); mass spectrometry; and electrochemical. Light-controlled protein oligomerization was mediated by formation of Tyr-Tyr (dityrosine) dimers through -C-C- bonds acting as covalent bridges, with a predominant involvement of residue Y39. The diverse oligomeric species exhibited a direct effect on the in vitro aggregation behavior of wild-type monomeric αS, decreasing the total yield of amyloid fibrils in aggregation assays monitored by thioflavin T (ThioT) fluorescence and light scattering, and by atomic force microscopy (AFM). Compared to the unmodified monomer, the photoinduced covalent oligomeric species demonstrated increased toxic effects on differentiated neuronal-like SH-SY5Y cells. The results highlight the importance of protein modification induced by oxidative stress in the initial molecular events leading to Parkinson's disease.
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Affiliation(s)
- Claudio D Borsarelli
- Laboratorio de Cinética y Fotoquímica, Centro de Investigaciones y Transferencia de Santiago del Estero (CITSE-CONICET), Universidad Nacional de Santiago del Estero, RN 9 Km 1125, 4206 Santiago del Estero, Argentina.
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Paleček E, Bartošík M, Ostatná V, Trefulka M. Electrocatalysis in proteins, nucleic acids and carbohydrates. CHEM REC 2012; 12:27-45. [DOI: 10.1002/tcr.201100029] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Indexed: 11/06/2022]
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On the mechanism of hydrogen evolution catalysis by proteins: A case study with bovine serum albumin. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.08.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Paleček E, Ostatná V, Černocká H, Joerger AC, Fersht AR. Electrocatalytic Monitoring of Metal Binding and Mutation-Induced Conformational Changes in p53 at Picomole Level. J Am Chem Soc 2011; 133:7190-6. [DOI: 10.1021/ja201006s] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Emil Paleček
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Královopolská 135, 612 65 Brno, Czech Republic
| | - Veronika Ostatná
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Královopolská 135, 612 65 Brno, Czech Republic
| | - Hana Černocká
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Královopolská 135, 612 65 Brno, Czech Republic
| | | | - Alan R. Fersht
- MRC Laboratory of Molecular Biology, Cambridge CB2 0QH, U.K
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Živanović M, Aleksić M, Ostatná V, Doneux T, Paleček E. Polylysine-Catalyzed Hydrogen Evolution at Mercury Electrodes. ELECTROANAL 2010. [DOI: 10.1002/elan.201000088] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ostatná V, Černocká H, Paleček E. Protein Structure-Sensitive Electrocatalysis at Dithiothreitol-Modified Electrodes. J Am Chem Soc 2010; 132:9408-13. [DOI: 10.1021/ja102427y] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Veronika Ostatná
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Královopolská 135, 612 65 Brno; Czech Republic
| | - Hana Černocká
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Královopolská 135, 612 65 Brno; Czech Republic
| | - Emil Paleček
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Královopolská 135, 612 65 Brno; Czech Republic
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Paleček E, Heyrovský M, Janík B, Kaláb D, Pechan Z. From DC polarographic presodium wave of proteins to electrochemistry of biomacromolecules. ACTA ACUST UNITED AC 2010. [DOI: 10.1135/cccc2009511] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
History of electrochemistry of proteins and nucleic acids is briefly reviewed. The ability of proteins to catalyze hydrogen evolution at Hg electrodes was discovered almost 80 years ago in J. Heyrovský’s laboratory. This phenomenon was not sufficiently appreciated for several decades. Recently it has been shown that using constant current chronopotentiometric stripping (CPS) with hanging mercury drop, solid amalgam or Hg-film electrodes the CPS peak H is obtained with nanomolar concentrations of peptides and proteins. This peak is derived from the presodium wave but it has some new properties useful in protein research. It is sensitive to changes in protein structures and to protein redox states, representing a new tool for protein analysis applicable in biomedicine. Electroactivity of nucleic acids was discovered about 50 years ago. Electrochemistry of DNA and RNA is now a booming field because of its potential use in sensors for DNA hybridization and DNA damage. Quite recently it has been shown that electrochemistry can be applied also in polysaccharide analysis. A review with 99 references.
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