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Gu M, Yu Z, Wu X, Sun Y, Hu J, Dong Y, Wang GL. Thioredoxin Reductase-Mediated Reaction Evokes In Situ Surface Polarization Effect on BiOIO 3: Toward a New Sensing Strategy for Cathodic Photoelectrochemistry. ACS APPLIED MATERIALS & INTERFACES 2024; 16:8518-8526. [PMID: 38335724 DOI: 10.1021/acsami.3c18323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Abstract
We have witnessed the fast progress of cathodic photoelectrochemistry over the past decades, though its signal transduction tactic still lacks diversity. Exploring new sensing strategies for cathodic photoelectrochemistry is extremely demanding yet hugely challenging. This article puts forward a unique idea to incorporate an enzymatic reaction-invoked surface polarization effect (SPE) on the surface of BiOIO3 to implement an innovative cathodic photoelectrochemical (PEC) bioanalysis. Specifically, the thioredoxin reductase (TrxR)-mediated reaction produced the polar glutathione (GSH), which spontaneously coordinated to the surface of BiOIO3 and induced SPE by forming a polarized electric field, resulting in improved electron (e-) and hole (h+) pair separation efficiency and an enhanced photocurrent output. Correlating this phenomenon with the detection of TrxR exhibited a high performance in terms of sensitivity and selectivity, achieving a linear range of 0.007-0.5 μM and a low detection limit of 2.0 nM (S/N = 3). This study brings refreshing inspiration for the cathodic PEC signal transduction tactic through enzyme-mediated in situ reaction to introduce SPE, which enriches the diversity of available signaling molecules. Moreover, this study unveils the potential of in situ generated SPE for extended and futuristic applications.
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Affiliation(s)
- Mengmeng Gu
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Zhangcong Yu
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Xiuming Wu
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Yuanyuan Sun
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Jiangwei Hu
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Yuming Dong
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Guang-Li Wang
- Key Laboratory of Synthetic and Biological Colloids (Ministry of Education), School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
- Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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2
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Havran L, Vacek J, Dorčák V. Free and Bound Histidine in Reactions at Mercury Electrode. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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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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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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Černocká H, Izadi N, Ostatná V, Strmečki S. BSA‐Polysaccharide Interactions at Negatively Charged Electrode Surface. Effects of Current Density. ELECTROANAL 2019. [DOI: 10.1002/elan.201900231] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hana Černocká
- Institute of BiophysicsAcademy of the Sciences of the Czech Republic v.v.i., Kralovopolska 135 612 65 Brno Czech Republic
| | - Nasim Izadi
- Institute of BiophysicsAcademy of the Sciences of the Czech Republic v.v.i., Kralovopolska 135 612 65 Brno Czech Republic
- Department of Experimental Biology, Faculty of ScienceMasaryk University Kotlarska 2 611 37 Brno Czech Republic
| | - Veronika Ostatná
- Institute of BiophysicsAcademy of the Sciences of the Czech Republic v.v.i., Kralovopolska 135 612 65 Brno Czech Republic
| | - Slađana Strmečki
- Institute of BiophysicsAcademy of the Sciences of the Czech Republic v.v.i., Kralovopolska 135 612 65 Brno Czech Republic
- Ruđer Bošković InstituteDivision for Marine and Environmental Research Bijenička 54 10 000 Zagreb Croatia
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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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7
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Novak D, Mojovic M, Pavicevic A, Zatloukalova M, Hernychova L, Bartosik M, Vacek J. Electrochemistry and electron paramagnetic resonance spectroscopy of cytochrome c and its heme-disrupted analogs. Bioelectrochemistry 2018; 119:136-141. [DOI: 10.1016/j.bioelechem.2017.09.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 09/19/2017] [Accepted: 09/19/2017] [Indexed: 11/30/2022]
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8
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Trefulka M, Dorčák V, Křenková J, Foret F, Paleček E. Electrochemical analysis of Os(VI)-modified glycoproteins and label-free glycoprotein detection eluted from lectin capillary column. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.04.045] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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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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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: 209] [Impact Index Per Article: 23.2] [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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11
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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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12
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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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13
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Paleček E, Černocká H, Ostatná V, Navrátilová L, Brázdová M. Electrochemical sensing of tumor suppressor protein p53–deoxyribonucleic acid complex stability at an electrified interface. Anal Chim Acta 2014; 828:1-8. [DOI: 10.1016/j.aca.2014.03.029] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 03/21/2014] [Accepted: 03/24/2014] [Indexed: 10/25/2022]
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14
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Kubala M, Geleticova J, Huliciak M, Zatloukalova M, Vacek J, Sebela M. Na(+)/K(+)-ATPase inhibition by cisplatin and consequences for cisplatin nephrotoxicity. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2014; 158:194-200. [PMID: 24781046 DOI: 10.5507/bp.2014.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 04/02/2014] [Indexed: 01/30/2023] Open
Abstract
AIMS Cisplatin is a widely used chemotherapeutic. However, it is associated with numerous adverse effects. The aim of our study was examination of cisplatin interaction with Na(+)/K(+)-ATPase (NKA, the sodium pump). This enzyme is of crucial importance for all animal cells and particularly for the kidney, which is frequently damaged during chemotherapy. METHODS The entire NKA was isolated from porcine kidney. Its large cytoplasmic segment connecting transmembrane helices 4 and 5 (C45), was heterologously expressed in E.coli (wild-type or C367S mutant). The ATPase activity was evaluated according to the inorganic phosphate production and the interaction of isolated C45 with cisplatin was studied using chronopotentiometry and mass spectrometry. RESULTS Our experiments revealed that cisplatin can inhibit NKA. The finding that other platinum-based drugs with a low nephrotoxicity, carboplatin and oxaliplatin, did not inhibit NKA, suggested that NKA/cisplatin interaction is an important factor in cisplatin adverse effects. The inhibitory effect of cisplatin could be prevented by preincubation of the enzyme with reduced glutathione or DTT. Using chronopotentiometry and mass spectrometry, we found that cisplatin is bound to C45. However, our mutagenesis experiment did not confirm that the suggested Cys367 could be the binding site for cisplatin. CONCLUSION Unintended interactions of drugs present serious limitations to treatment success. Although a large number of membrane pumps have been identified as potential targets of cisplatin, vis-a-vis nephrotoxicity, NKA inhibition seems to be of crucial importance. Experiments with isolated large cytoplasmic segment C45 revealed that it is the main target of cisplatin on NKA and that the reaction with cysteine residues plays an important role in cisplatin/NKA interactions. However, further experiments must be performed to identify the interacting amino acid residues more precisely.
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Affiliation(s)
- Martin Kubala
- Department of Biophysics, Centre of the Region Hana for Biotechnological and Agricultural Research, Palacky University Olomouc, Czech Republic
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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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16
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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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17
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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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18
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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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19
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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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20
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Zatloukalová M, Orolinová E, Kubala M, Hrbáč J, Vacek J. Electrochemical Determination of Transmembrane Protein Na+/K+-ATPase and Its Cytoplasmic Loop C45. ELECTROANAL 2012. [DOI: 10.1002/elan.201200165] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Affiliation(s)
- Emil Paleček
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, 612
65 Brno, Czech Republic
| | - Martin Bartošík
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, 612
65 Brno, Czech Republic
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Huličiak M, Vacek J, Sebela M, Orolinová E, Znaleziona J, Havlíková M, Kubala M. Covalent binding of cisplatin impairs the function of Na(+)/K(+)-ATPase by binding to its cytoplasmic part. Biochem Pharmacol 2012; 83:1507-13. [PMID: 22394404 DOI: 10.1016/j.bcp.2012.02.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Revised: 02/17/2012] [Accepted: 02/20/2012] [Indexed: 01/26/2023]
Abstract
This study was aimed at verifying the hypothesis that acute kidney failure accompanying cisplatin administration in the cancer therapy could be due to cisplatin interaction with the cytoplasmic part of Na(+)/K(+)-ATPase. Our results demonstrated that cisplatin-binding caused inhibition of Na(+)/K(+)-ATPase, in contrast to other platinated chemotherapeutics such as carboplatin and oxaliplatin, which are known to be much less nephrotoxic. To acquire more detailed structural information, we performed a series of experiments with the isolated large cytoplasmic segment connecting transmembrane helices 4 and 5 (C45 loop) of Na(+)/K(+)-ATPase. Electrochemistry showed that cisplatin is bound to the cysteine residues of the C45 loop, mass spectrometry revealed a modification of the C45 peptide fragment GSHMASLEAVETLGSTSTICSDK, which contains the conserved phosphorylated residue Asp369. Hence, we hypothesize that binding of cisplatin to Cys367 can cause sterical obstruction during the phosphorylation or dephosphorylation step of the Na(+)/K(+)-ATPase catalytic cycle.
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Affiliation(s)
- Miroslav Huličiak
- Department of Biophysics, Palacký University in Olomouc, Olomouc, Czech Republic
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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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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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Paleček E, Trefulka M. Electrocatalytic detection of polysaccharides at picomolar concentrations. Analyst 2011; 136:321-6. [DOI: 10.1039/c0an00681e] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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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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Jusková P, Ostatná V, Paleček E, Foret F. Fabrication and Characterization of Solid Mercury Amalgam Electrodes for Protein Analysis. Anal Chem 2010; 82:2690-5. [DOI: 10.1021/ac902333s] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Petra Jusková
- Institute of Analytical Chemistry of the ASCR, v. v. i., Veveří 97, 60200 Brno, Czech Republic and Institute of Biophysics of the ASCR, v. v. i. Královopolská 135, 61265 Brno, Czech Republic
| | - Veronika Ostatná
- Institute of Analytical Chemistry of the ASCR, v. v. i., Veveří 97, 60200 Brno, Czech Republic and Institute of Biophysics of the ASCR, v. v. i. Královopolská 135, 61265 Brno, Czech Republic
| | - Emil Paleček
- Institute of Analytical Chemistry of the ASCR, v. v. i., Veveří 97, 60200 Brno, Czech Republic and Institute of Biophysics of the ASCR, v. v. i. Královopolská 135, 61265 Brno, Czech Republic
| | - František Foret
- Institute of Analytical Chemistry of the ASCR, v. v. i., Veveří 97, 60200 Brno, Czech Republic and Institute of Biophysics of the ASCR, v. v. i. Královopolská 135, 61265 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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Doneux T, Dorcák V, Palecek E. Influence of the interfacial peptide organization on the catalysis of hydrogen evolution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:1347-1353. [PMID: 19743826 DOI: 10.1021/la9024603] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The hydrogen evolution reaction is catalyzed by peptides and proteins adsorbed on electrode materials with high overpotentials for this reaction, such as mercury. The catalytic response characteristics are known to be very sensitive to the composition and structure of the investigated biomolecule, opening the way to the implementation of a label-free, reagentless electroanalytical method in protein analysis. Herein, it is shown using the model peptide Cys-Ala-Ala-Ala-Ala-Ala that the interfacial organization significantly influences the catalytic behavior. This peptide forms at the electrode two distinct films, depending on the concentration and accumulation time. The low-coverage film, composed of flat-lying molecules (area per molecule of approximately 250-290 A(2)), yields a well-defined catalytic peak at potentials around -1.75 V. The high-coverage film, made of upright-oriented peptides (area per molecule of approximately 43 A(2)), is catalytically more active and the peak is observed at potentials less negative by approximately 0.4 V. The higher activity, evidenced by constant-current chronopotentiometry and cyclic voltammetry, is attributed to an increase in the acid dissociation constant of the amino acid residues as a result of the low permittivity of the interfacial region, as inferred from impedance measurements. An analogy is made to the known differences in acidic-basic behaviors of solvent-exposed and hydrophobic domains of proteins.
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Affiliation(s)
- Th Doneux
- Institute of Biophysics ASCR, v.v.i., 612 65 Brno, Czech Republic
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Bartosík M, Ostatná V, Palecek E. Electrochemistry of riboflavin-binding protein and its interaction with riboflavin. Bioelectrochemistry 2009; 76:70-5. [PMID: 19446502 DOI: 10.1016/j.bioelechem.2009.04.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2008] [Revised: 04/16/2009] [Accepted: 04/20/2009] [Indexed: 10/20/2022]
Abstract
Riboflavin-binding protein (RBP, a carrier of riboflavin) plays an essential role in embryo development. Electrochemical studies of the riboflavin-RBP interactions have been so far limited to changes in polarographic and voltammetric responses of riboflavin because of lack of methods capable to detect electrochemical changes in the RBP responses. Here we used constant current chronopotentiometric stripping analysis (CPSA) with the hanging mercury drop electrode (HMDE) and square wave voltammetry (SWV) with carbon paste electrode (CPE) to investigate RBP. We found that CPSA of RBP produces electrocatalytic peak H, capable to discriminate between apoprotein and holoprotein forms of RBP. This peak is suitable for studies of RBP-riboflavin interaction at nanomolar concentrations. We observed no sign of a release of riboflavin from holoprotein adsorbed at the HMDE surface. SWV at CPE required higher concentrations of RBP and displayed almost identical oxidation peaks of apoprotein and holoprotein.
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Affiliation(s)
- Martin Bartosík
- 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, Ostatná V. Ionic strength-dependent structural transition of proteins at electrode surfaces. Chem Commun (Camb) 2009:1685-7. [DOI: 10.1039/b822274f] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Paleček E, Ostatná V. Potential-dependent surface denaturation of BSA in acid media. Analyst 2009; 134:2076-80. [DOI: 10.1039/b912602c] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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