1
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Zhu M, Wang S, Li Z, Li J, Xu Z, Liu X, Huang X. Tyrosine residues initiated photopolymerization in living organisms. Nat Commun 2023; 14:3598. [PMID: 37328460 PMCID: PMC10276049 DOI: 10.1038/s41467-023-39286-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 06/07/2023] [Indexed: 06/18/2023] Open
Abstract
Towards intracellular engineering of living organisms, the development of new biocompatible polymerization system applicable for an intrinsically non-natural macromolecules synthesis for modulating living organism function/behavior is a key step. Herein, we find that the tyrosine residues in the cofactor-free proteins can be employed to mediate controlled radical polymerization under 405 nm light. A proton-coupled electron transfer (PCET) mechanism between the excited-state TyrOH* residue in proteins and the monomer or the chain transfer agent is confirmed. By using Tyr-containing proteins, a wide range of well-defined polymers are successfully generated. Especially, the developed photopolymerization system shows good biocompatibility, which can achieve in-situ extracellular polymerization from the surface of yeast cells for agglutination/anti-agglutination functional manipulation or intracellular polymerization inside yeast cells, respectively. Besides providing a universal aqueous photopolymerization system, this study should contribute a new way to generate various non-natural polymers in vitro or in vivo to engineer living organism functions and behaviours.
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Affiliation(s)
- Mei Zhu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Shengliang Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Zhenhui Li
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Junbo Li
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Zhijun Xu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Xiaoman Liu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China.
| | - Xin Huang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China.
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2
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Yan Z, He M, Zhang Y, Hu G, Li H. Methylene blue-enhanced electrochemical oxidation of tyrosine residues in native/denatured bovine serum albumin and HIV-1 Tat peptide. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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3
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Vadlamani BS, Uppal T, Verma SC, Misra M. Functionalized TiO 2 Nanotube-Based Electrochemical Biosensor for Rapid Detection of SARS-CoV-2. SENSORS (BASEL, SWITZERLAND) 2020; 20:s20205871. [PMID: 33080785 DOI: 10.1101/2020.09.07.20190173] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/10/2020] [Accepted: 10/13/2020] [Indexed: 05/24/2023]
Abstract
The COronaVIrus Disease (COVID-19) is a newly emerging viral disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Rapid increase in the number of COVID-19 cases worldwide led the WHO to declare a pandemic within a few months after the first case of infection. Due to the lack of a prophylactic measure to control the virus infection and spread, early diagnosis and quarantining of infected as well as the asymptomatic individuals are necessary for the containment of this pandemic. However, the current methods for SARS-CoV-2 diagnosis are expensive and time consuming, although some promising and inexpensive technologies are becoming available for emergency use. In this work, we report the synthesis of a cheap, yet highly sensitive, cobalt-functionalized TiO2 nanotubes (Co-TNTs)-based electrochemical sensor for rapid detection of SARS-CoV-2 through sensing the spike (receptor binding domain (RBD)) present on the surface of the virus. A simple, low-cost, and one-step electrochemical anodization route was used for synthesizing TNTs, followed by an incipient wetting method for cobalt functionalization of the TNTs platform, which was connected to a potentiostat for data collection. This sensor specifically detected the S-RBD protein of SARS-CoV-2 even at very low concentration (range of 14 to 1400 nM (nano molar)). Additionally, our sensor showed a linear response in the detection of viral protein over the concentration range. Thus, our Co-TNT sensor is highly effective in detecting SARS-CoV-2 S-RBD protein in approximately 30 s, which can be explored for developing a point of care diagnostics for rapid detection of SARS-CoV-2 in nasal secretions and saliva samples.
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Affiliation(s)
- Bhaskar S Vadlamani
- Chemical and Materials Engineering Department, University of Nevada, Reno, NV 89557, USA
| | - Timsy Uppal
- Department of Microbiology and Immunology, University of Nevada, Reno School of Medicine, Reno, NV 89557, USA
| | - Subhash C Verma
- Department of Microbiology and Immunology, University of Nevada, Reno School of Medicine, Reno, NV 89557, USA
| | - Mano Misra
- Chemical and Materials Engineering Department, University of Nevada, Reno, NV 89557, USA
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4
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Functionalized TiO 2 Nanotube-Based Electrochemical Biosensor for Rapid Detection of SARS-CoV-2. SENSORS 2020; 20:s20205871. [PMID: 33080785 PMCID: PMC7589637 DOI: 10.3390/s20205871] [Citation(s) in RCA: 118] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/10/2020] [Accepted: 10/13/2020] [Indexed: 02/07/2023]
Abstract
The COronaVIrus Disease (COVID-19) is a newly emerging viral disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Rapid increase in the number of COVID-19 cases worldwide led the WHO to declare a pandemic within a few months after the first case of infection. Due to the lack of a prophylactic measure to control the virus infection and spread, early diagnosis and quarantining of infected as well as the asymptomatic individuals are necessary for the containment of this pandemic. However, the current methods for SARS-CoV-2 diagnosis are expensive and time consuming, although some promising and inexpensive technologies are becoming available for emergency use. In this work, we report the synthesis of a cheap, yet highly sensitive, cobalt-functionalized TiO2 nanotubes (Co-TNTs)-based electrochemical sensor for rapid detection of SARS-CoV-2 through sensing the spike (receptor binding domain (RBD)) present on the surface of the virus. A simple, low-cost, and one-step electrochemical anodization route was used for synthesizing TNTs, followed by an incipient wetting method for cobalt functionalization of the TNTs platform, which was connected to a potentiostat for data collection. This sensor specifically detected the S-RBD protein of SARS-CoV-2 even at very low concentration (range of 14 to 1400 nM (nano molar)). Additionally, our sensor showed a linear response in the detection of viral protein over the concentration range. Thus, our Co-TNT sensor is highly effective in detecting SARS-CoV-2 S-RBD protein in approximately 30 s, which can be explored for developing a point of care diagnostics for rapid detection of SARS-CoV-2 in nasal secretions and saliva samples.
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5
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Li N, Zhang Y, Huang B, Li H. Ultrasonic dispersion temperature- and pH-tuned spectral and electrochemical properties of bovine serum albumin on carbon nanotubes and its conformational transition. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.11.089] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Yang Y, Gu Y, Wan B, Ren X, Guo LH. Label-free electrochemical biosensing of small-molecule inhibition on O-GlcNAc glycosylation. Biosens Bioelectron 2017; 95:94-99. [DOI: 10.1016/j.bios.2017.04.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 03/30/2017] [Accepted: 04/10/2017] [Indexed: 12/01/2022]
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7
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Interaction of some cardiovascular drugs with bovine serum albumin at physiological conditions using glassy carbon electrode: A new approach. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 65:97-108. [DOI: 10.1016/j.msec.2016.03.112] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Revised: 02/28/2016] [Accepted: 03/30/2016] [Indexed: 01/30/2023]
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8
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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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9
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V. Shumyantseva V, V. Suprun E, V. Bulko T, I. Archakov A. Electrochemical methods for detection of post-translational modifications of proteins. Biosens Bioelectron 2014; 61:131-9. [DOI: 10.1016/j.bios.2014.05.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 04/11/2014] [Accepted: 05/01/2014] [Indexed: 01/04/2023]
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10
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Tercero N, Kotarek J. Voltammetric Monitoring of Protein Aggregation from Solution Using Tris-(2,2′-Bipyridine) Osmium(II) Chloride Complex as an Electrocatalytic Mediator. ELECTROANAL 2014. [DOI: 10.1002/elan.201300463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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11
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Liu J, Dong Y, Zheng J, He Y, Sheng Q. Investigation on the conformation change of hemoglobin immobilized on MPA-modified electrode by electrochemical method. ANAL SCI 2013; 29:1075-81. [PMID: 24212734 DOI: 10.2116/analsci.29.1075] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The conformation change of bovine hemoglobin (Hb) during the unfolding process induced by urea and acid was investigated by an electrochemical method. Hb unfolding induced by urea of different concentrations was realized by bonding Hb onto a 3-mercaptopropionic acid (MPA) modified gold electrode. The difference in unfolding percentage showed that the Hb unfolding induced by urea was a two-step, three-state transition process, while the unfolding induced by acid was a two-state transition process. The results obtained by the electrochemical method coincided closely with those obtained by UV-vis spectroscopy and fluorescence spectroscopy. Some thermodynamic parameters during the conformational change were also calculated to study the intermediate state during the Hb unfolding process. The present work may lead to an easy and effective way to study metalloproteins unfolding, and holds great promise for the design of novel sensitive biosensors.
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Affiliation(s)
- Jianbo Liu
- Institute of Analytical Science/Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry, Northwest University
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12
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Qiu S, Lin Z, Zhou Y, Li R, Zhang J, Zhang D, Luo L, Guo L, Qiu B, Chen G. Label-Free Fluorometric Method for Monitoring Conformational Flexibility of Laccase Based on a Selective Laccase Sensor. Anal Chem 2013; 85:11041-6. [DOI: 10.1021/ac402693k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Suyan Qiu
- Institute for Quality & Safety and Standards of Agricultural Products Research, Jiangxi Academy of Agricultural Sciences, Nanchang, Jiangxi, 330200, China
| | - Zhenyu Lin
- MOE
Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial
Key Laboratory of Analysis and Detection Technology for Food Safety,
Department of Chemistry, Fuzhou University, Fuzhou, Fujian, 350002, China
| | - Yaomin Zhou
- Institute for Quality & Safety and Standards of Agricultural Products Research, Jiangxi Academy of Agricultural Sciences, Nanchang, Jiangxi, 330200, China
| | - Ruili Li
- Institute for Quality & Safety and Standards of Agricultural Products Research, Jiangxi Academy of Agricultural Sciences, Nanchang, Jiangxi, 330200, China
| | - Jinyan Zhang
- Institute for Quality & Safety and Standards of Agricultural Products Research, Jiangxi Academy of Agricultural Sciences, Nanchang, Jiangxi, 330200, China
| | - Dawen Zhang
- Institute for Quality & Safety and Standards of Agricultural Products Research, Jiangxi Academy of Agricultural Sciences, Nanchang, Jiangxi, 330200, China
| | - Linguang Luo
- Institute for Quality & Safety and Standards of Agricultural Products Research, Jiangxi Academy of Agricultural Sciences, Nanchang, Jiangxi, 330200, China
| | - Longhua Guo
- MOE
Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial
Key Laboratory of Analysis and Detection Technology for Food Safety,
Department of Chemistry, Fuzhou University, Fuzhou, Fujian, 350002, China
| | - Bin Qiu
- MOE
Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial
Key Laboratory of Analysis and Detection Technology for Food Safety,
Department of Chemistry, Fuzhou University, Fuzhou, Fujian, 350002, China
| | - Guonan Chen
- MOE
Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial
Key Laboratory of Analysis and Detection Technology for Food Safety,
Department of Chemistry, Fuzhou University, Fuzhou, Fujian, 350002, China
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13
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Suprun EV, Zharkova MS, Morozevich GE, Veselovsky AV, Shumyantseva VV, Archakov AI. Analysis of Redox Activity of Proteins on the Carbon Screen Printed Electrodes. ELECTROANAL 2013. [DOI: 10.1002/elan.201300248] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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14
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Qian Y, Xu X, Wang Q, Wu P, Zhang H, Cai C. Electrochemical probing of the solution pH-induced structural alterations around the heme group in myoglobin. Phys Chem Chem Phys 2013; 15:16941-8. [DOI: 10.1039/c3cp52352g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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15
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Li X, Yu P, Yang L, Wang F, Mao L. An Electrochemical Method for Investigation of Conformational Flexibility of Active Sites of Trametes versicolor Laccase Based on Sensitive Determination of Copper Ion with Cysteine-Modified Electrodes. Anal Chem 2012; 84:9416-21. [DOI: 10.1021/ac302241a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xianchan Li
- Beijing National Laboratory for Molecular Sciences,
Key Laboratory of Analytical Chemistry for Living Biosystems, Institute
of Chemistry, the Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Ping Yu
- Beijing National Laboratory for Molecular Sciences,
Key Laboratory of Analytical Chemistry for Living Biosystems, Institute
of Chemistry, the Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Lifen Yang
- Beijing National Laboratory for Molecular Sciences,
Key Laboratory of Analytical Chemistry for Living Biosystems, Institute
of Chemistry, the Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Fuyi Wang
- Beijing National Laboratory for Molecular Sciences,
Key Laboratory of Analytical Chemistry for Living Biosystems, Institute
of Chemistry, the Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Lanqun Mao
- Beijing National Laboratory for Molecular Sciences,
Key Laboratory of Analytical Chemistry for Living Biosystems, Institute
of Chemistry, the Chinese Academy of Sciences (CAS), Beijing 100190, China
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16
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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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17
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Zhang Q, Ni Y, Kokot S. Combined voltammetric and spectroscopic analysis of small molecule–biopolymer interactions: The levodopa and serum albumin system. Talanta 2012; 88:524-32. [DOI: 10.1016/j.talanta.2011.11.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2011] [Revised: 10/31/2011] [Accepted: 11/03/2011] [Indexed: 10/15/2022]
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18
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Label-free electrochemical measurement of protein tyrosine kinase activity and inhibition based on electro-catalyzed tyrosine signaling. Biosens Bioelectron 2011; 28:284-90. [DOI: 10.1016/j.bios.2011.07.033] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Revised: 06/29/2011] [Accepted: 07/14/2011] [Indexed: 12/16/2022]
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19
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Site-selective probe for investigating the asynchronous unfolding of domains in bovine serum albumin. Talanta 2011; 84:881-6. [DOI: 10.1016/j.talanta.2011.02.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2010] [Revised: 02/09/2011] [Accepted: 02/16/2011] [Indexed: 11/20/2022]
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20
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Direct probing of the folding/unfolding event of bovine hemoglobin at montmorillonite clay modified electrode by adsorptive-transfer voltammetry. Talanta 2011; 84:148-54. [DOI: 10.1016/j.talanta.2010.12.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2010] [Revised: 12/16/2010] [Accepted: 12/21/2010] [Indexed: 11/22/2022]
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21
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Wang Q, Xu W, Wu P, Zhang H, Cai C, Zhao B. New Insights into the Effects of Thermal Treatment on the Catalytic Activity and Conformational Structure of Glucose Oxidase Studied by Electrochemistry, IR Spectroscopy, and Theoretical Calculation. J Phys Chem B 2010; 114:12754-64. [DOI: 10.1021/jp106214v] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Qian Wang
- Jiangsu Key Laboratory of Biofunctional Materials, Laboratory of Electrochemistry, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, People’s Republic of China
| | - Wang Xu
- Jiangsu Key Laboratory of Biofunctional Materials, Laboratory of Electrochemistry, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, People’s Republic of China
| | - Ping Wu
- Jiangsu Key Laboratory of Biofunctional Materials, Laboratory of Electrochemistry, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, People’s Republic of China
| | - Hui Zhang
- Jiangsu Key Laboratory of Biofunctional Materials, Laboratory of Electrochemistry, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, People’s Republic of China
| | - Chenxin Cai
- Jiangsu Key Laboratory of Biofunctional Materials, Laboratory of Electrochemistry, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, People’s Republic of China
| | - Bo Zhao
- Jiangsu Key Laboratory of Biofunctional Materials, Laboratory of Electrochemistry, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, People’s Republic of China
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22
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Zhao X, Mai Z, Dai Z, Zou X. Electrochemically Monitoring the Acid and Acidic Urea-Induced Unfolding of Hemoglobin and Its Electrocatalytic Ability. ELECTROANAL 2010. [DOI: 10.1002/elan.201000113] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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23
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Mai Z, Zhao X, Dai Z, Zou X. Contributions of Components in Guanidine Hydrochloride to Hemoglobin Unfolding Investigated by Protein Film Electrochemistry. J Phys Chem B 2010; 114:7090-7. [DOI: 10.1021/jp101082d] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Zhibin Mai
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China, and College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, People's Republic of China
| | - Xiaojuan Zhao
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China, and College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, People's Republic of China
| | - Zong Dai
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China, and College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, People's Republic of China
| | - Xiaoyong Zou
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China, and College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, People's Republic of China
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24
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Li X, Zheng W, Zhang L, Yu P, Lin Y, Su L, Mao L. Effective Electrochemical Method for Investigation of Hemoglobin Unfolding Based on the Redox Property of Heme Groups at Glassy Carbon Electrodes. Anal Chem 2009; 81:8557-63. [DOI: 10.1021/ac9015215] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Xianchan Li
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Wei Zheng
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Limin Zhang
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Ping Yu
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Yuqing Lin
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Lei Su
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Lanqun Mao
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China
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25
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Yang X, Yuan R, Chai Y, Zhuo Y, Mao L, Liu Z, Su H, Yuan S. Electrochemiluminescence Sensor Based on Multiwalled Carbon Nanotubes Doped Polyvinyl Butyral Film Containing Ru(bpy)$\rm{ {_{3}^{2+}}}$ as Chemiluminescence Reagent. ELECTROANAL 2009. [DOI: 10.1002/elan.200904589] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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26
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Wei MY, Wen SD, Yang XQ, Guo LH. Development of redox-labeled electrochemical immunoassay for polycyclic aromatic hydrocarbons with controlled surface modification and catalytic voltammetric detection. Biosens Bioelectron 2009; 24:2909-14. [DOI: 10.1016/j.bios.2009.02.031] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2008] [Revised: 02/07/2009] [Accepted: 02/23/2009] [Indexed: 10/21/2022]
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27
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Yang G, Liu E, Khun NW, Jiang SP. Direct electrochemical response of glucose at nickel-doped diamond like carbon thin film electrodes. J Electroanal Chem (Lausanne) 2009. [DOI: 10.1016/j.jelechem.2008.12.019] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Chen YM, Guo LH. Combined fluorescence and electrochemical investigation on the binding interaction between organic acid and human serum albumin. J Environ Sci (China) 2009; 21:373-379. [PMID: 19634451 DOI: 10.1016/s1001-0742(08)62279-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Human serum albumin (HSA) is a plasma protein responsible for the binding and transport of fatty acids and a variety of exogenous chemicals such as drugs and environmental pollutants. Such binding plays a crucial role in determining the ADME (absorption, distribution, metabolism, and excretion) and bioavailability of the pollutants. The binding interaction between HSA and acetic acid (C2), octanoic acid (C8) and dodecanoic acid (C12) has been investigated by the combination of site-specific fluorescent probe, tryptophan intrinsic fluorescence and tyrosine electrochemistry. For the study of the fatty acid interaction with the two drug-binding sites on HSA, two fluorescent probes, dansylamide and dansyl-L-proline were employed in the displacement measurements. Intrinsic fluorescence of tryptophan in HSA was monitored upon addition of the fatty acids into HSA. Electrocatalyzed response of the tyrosine residues in HSA by a redox mediator was used to investigate the binding interaction. Qualitatively, observations from these three approaches were very similar. HSA did not show any change in the fluorescence and electrochemical experiments after mixing with C2, suggesting there is no significant interaction with the short-chain fatty acid. For C8, the measured signal dropped in a single-exponential mode, indicating an independent and non-cooperative binding. The calculated association constant and binding ratio were 3.1 x 10(6) L/mol and 1 with drug binding Site I, 1.1 x 10(7) L/mol and 1 with Site II, and 7.0 x 10(4) L/mol and 4 with the tryptophan site, respectively. The measurements with C12 displayed multiple phases of fluorescence change, suggesting cooperativity and allosteric effect of the C12 binding. These results correlate well with those obtained by the established methods, and validate the new approach as a viable tool to study the interactions of environmental pollutants with biological molecules.
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Affiliation(s)
- Yan-Min Chen
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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Zhou N, Chen Z, Zhang D, Li G. Electrochemical Assay of Human Islet Amyloid Polypeptide and Its Aggregation. SENSORS 2008; 8:5987-5995. [PMID: 27873853 PMCID: PMC3705543 DOI: 10.3390/s8095987] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2008] [Revised: 09/11/2008] [Accepted: 09/22/2008] [Indexed: 12/29/2022]
Abstract
Square wave voltammetry is used in this work to detect human islet amyloid polypeptide (hIAPP) by using the oxidized signal of the tyrosine residue in hIAPP. A detection limit of 1×10-6 M for hIAPP has been obtained. A kinetic study of the aggregation process has been carried out according to the relationship between the anodic peak current in the square wave voltammograms of hIAPP and the incubation period. The results show that the nucleation starts in the first hour of incubation and then, during the next two hours, aggregation may occur rapidly. hIAPP can therefore be monitored with a label-free electrochemical method with low detection limit and high sensitivity. This electrochemical method can be also utilized to study the kinetics of hIAPP aggregation, and it may be also employed to study the conformational changes of the polypeptide.
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Affiliation(s)
- Nandi Zhou
- Laboratory of Biosensing Technology, School of Life Science, Shanghai University, Shanghai 200444, P.R. China
- Department of Biochemistry and National Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, P.R. China
| | - Zhenyu Chen
- Laboratory of Biosensing Technology, School of Life Science, Shanghai University, Shanghai 200444, P.R. China
| | - Dongmei Zhang
- Department of Biochemistry and National Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, P.R. China
| | - Genxi Li
- Laboratory of Biosensing Technology, School of Life Science, Shanghai University, Shanghai 200444, P.R. China.
- Department of Biochemistry and National Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, P.R. China.
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Chiku M, Nakamura J, Fujishima A, Einaga Y. Conformational Change Detection in Nonmetal Proteins by Direct Electrochemical Oxidation Using Diamond Electrodes. Anal Chem 2008; 80:5783-7. [DOI: 10.1021/ac800394n] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Masanobu Chiku
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Yokohama 223-8522, Japan, Department of Applied Physics and Chemistry, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan, and Kanagawa Academy of Science and Technology, KSP 3-2-1 Sakado, Kawasaki 213-0012, Japan
| | - Jin Nakamura
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Yokohama 223-8522, Japan, Department of Applied Physics and Chemistry, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan, and Kanagawa Academy of Science and Technology, KSP 3-2-1 Sakado, Kawasaki 213-0012, Japan
| | - Akira Fujishima
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Yokohama 223-8522, Japan, Department of Applied Physics and Chemistry, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan, and Kanagawa Academy of Science and Technology, KSP 3-2-1 Sakado, Kawasaki 213-0012, Japan
| | - Yasuaki Einaga
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Yokohama 223-8522, Japan, Department of Applied Physics and Chemistry, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan, and Kanagawa Academy of Science and Technology, KSP 3-2-1 Sakado, Kawasaki 213-0012, Japan
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Qu N, Wan B, Guo LH. Label-free electrochemical differentiation of phosphorylated and non-phosphorylated peptide by electro-catalyzed tyrosine oxidation. Analyst 2008; 133:1246-9. [DOI: 10.1039/b807133k] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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