1
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Mendes GM, d'Orlye F, Trapiella-Alfonso L, Duarte GRM, Varenne A. Streamlined integrated protein isoelectric focusing using microfluidic paper-based device. J Chromatogr A 2024; 1732:465222. [PMID: 39111183 DOI: 10.1016/j.chroma.2024.465222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 07/30/2024] [Accepted: 07/31/2024] [Indexed: 08/23/2024]
Abstract
An innovative integrated paper-based microdevice was developed for protein separation by isoelectric focusing (IEF), allowing for robust design thanks to a 3D-printed holder integrating separation channel, reservoirs, and electrodes. To reach robustness and precision, the optimization focused on the holder geometry, the paper nature, the reservoir design, the IEF medium, and various focusing parameters. A well-established and stable pH gradient was obtained on a glass-fiber paper substrate with simple sponge reservoirs, and the integration of the electrodes in the holder led to a straightforward system. The separation medium composed of water/glycerol (85/15, v/v) allowed for reducing medium evaporation while being an efficient medium for most hydrophobic and hydrophilic proteins, compatible with mass spectrometry detection for further proteomics developments. To our knowledge, this is the first report of the use of glycerol solutions as a separation medium in a paper-based microdevice. Analytical performances regarding pH gradient generation, pI determination, separation efficiency, and resolution were estimated while varying the IEF experimental parameters. The overall process led to an efficient separation within 25 min. Then, this methodology was applied to a sample composed of saliva doped with proteins. A minimal matrix effect was evidenced, underscoring the practical viability of our platform. This low-cost, versatile and robust paper-based IEF microdevice opens the way to various applications, ranging from sample pre-treatment to integration in an overall proteomic-on-a-chip device.
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Affiliation(s)
- Geovana M Mendes
- Chimie ParisTech, PSL University, CNRS 8060, Institute of Chemistry for Life and Health Sciences, 75005 Paris, France; Instituto de Química, Universidade Federal de Goiás, 74690-900, Goiânia, GO, Brazil
| | - Fanny d'Orlye
- Chimie ParisTech, PSL University, CNRS 8060, Institute of Chemistry for Life and Health Sciences, 75005 Paris, France.
| | - Laura Trapiella-Alfonso
- Chimie ParisTech, PSL University, CNRS 8060, Institute of Chemistry for Life and Health Sciences, 75005 Paris, France
| | - Gabriela R M Duarte
- Instituto de Química, Universidade Federal de Goiás, 74690-900, Goiânia, GO, Brazil
| | - Anne Varenne
- Chimie ParisTech, PSL University, CNRS 8060, Institute of Chemistry for Life and Health Sciences, 75005 Paris, France.
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2
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Masci M, Zoani C, Nevigato T, Turrini A, Jasionowska R, Caproni R, Ratini P. Authenticity assessment of dairy products by capillary electrophoresis. Electrophoresis 2021; 43:340-354. [PMID: 34407231 DOI: 10.1002/elps.202100154] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/12/2021] [Accepted: 08/13/2021] [Indexed: 12/13/2022]
Abstract
Milk and derivatives are a very important part in the diet of the world population. Products from goat, buffalo, and sheep species have a greater economic value than the cow ones, therefore, authenticity frauds by improperly adding cow's milk occur frequently: dairy products are among the seven more attractive foods for adulteration. Milk from each of the above-cited animal species has its own definite profile of whey proteins (variants of α-lactalbumin and β-lactoglobulin) and its definite profile of caseins (variants of αS1 -, αS2 -, β-, and κ-casein). Such proteins can be usefully exploited as markers of authenticity by using capillary electrophoresis which is the technique of choice for the analysis of proteins. Due to the multiple adjustable parameters that are unknown to other analytical techniques, capillary electrophoresis is able to detect frauds in milk mixtures and cheese with little use of solvents, fast analysis time, and ease of operation. This makes it attractive and competitive for routine checks that are very important to fight the adulteration market. Advantages and limitations are discussed.
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Affiliation(s)
- Maurizio Masci
- Research Centre for Food and Nutrition, Council for Agricultural Research and Economics (CREA), Rome, Italy
| | - Claudia Zoani
- Department for Sustainability-Biotechnology and Agroindustry Division (ENEA-SSPT-BIOAG), Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Rome, Italy
| | - Teresina Nevigato
- Research Centre for Food and Nutrition, Council for Agricultural Research and Economics (CREA), Rome, Italy
| | - Aida Turrini
- Research Centre for Food and Nutrition, Council for Agricultural Research and Economics (CREA), Rome, Italy
| | | | - Roberto Caproni
- Research Centre for Food and Nutrition, Council for Agricultural Research and Economics (CREA), Rome, Italy
| | - Patrizia Ratini
- Department of Chemistry, Sapienza University of Rome, Rome, Italy
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3
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Patel VD, Shamsi SA, Sutherland K. Capillary electromigration techniques coupled to mass spectrometry: Applications to food analysis. Trends Analyt Chem 2021; 139. [DOI: 10.1016/j.trac.2021.116240] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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4
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Xu T, Sun L. A Mini Review on Capillary Isoelectric Focusing-Mass Spectrometry for Top-Down Proteomics. Front Chem 2021; 9:651757. [PMID: 33898392 PMCID: PMC8063032 DOI: 10.3389/fchem.2021.651757] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 03/16/2021] [Indexed: 01/24/2023] Open
Abstract
Mass spectrometry (MS)-based top-down proteomics (TDP) requires high-resolution separation of proteoforms before electrospray ionization (ESI)-MS and tandem mass spectrometry (MS/MS). Capillary isoelectric focusing (cIEF)-ESI-MS and MS/MS could be an ideal method for TDP because cIEF can enable separation of proteoforms based on their isoelectric points (pIs) with ultra-high resolution. cIEF-ESI-MS has been well-recognized for protein characterization since 1990s. However, the widespread adoption of cIEF-MS for the characterization of proteoforms had been impeded by several technical challenges, including the lack of highly sensitive and robust ESI interface for coupling cIEF to MS, ESI suppression of analytes from ampholytes, and the requirement of manual operations. In this mini review, we summarize the technical improvements of cIEF-ESI-MS for characterizing proteoforms and highlight some recent applications to hydrophobic proteins, urinary albumin variants, charge variants of monoclonal antibodies, and large-scale TDP of complex proteomes.
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Affiliation(s)
| | - Liangliang Sun
- Department of Chemistry, Michigan State University, East Lansing, MI, United States
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5
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Wang L, Chen DDY. Analysis of four therapeutic monoclonal antibodies by online capillary isoelectric focusing directly coupled to quadrupole time‐of‐flight mass spectrometry. Electrophoresis 2019; 40:2899-2907. [DOI: 10.1002/elps.201900195] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/17/2019] [Accepted: 08/09/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Lingyu Wang
- Department of ChemistryUniversity of British Columbia Vancouver BC Canada
| | - David Da Yong Chen
- Department of ChemistryUniversity of British Columbia Vancouver BC Canada
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6
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Wang L, Bo T, Zhang Z, Wang G, Tong W, Da Yong Chen D. High Resolution Capillary Isoelectric Focusing Mass Spectrometry Analysis of Peptides, Proteins, And Monoclonal Antibodies with a Flow-through Microvial Interface. Anal Chem 2018; 90:9495-9503. [PMID: 29993237 DOI: 10.1021/acs.analchem.8b02175] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Lingyu Wang
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, China 210023
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - Tao Bo
- Thermo Fisher Scientific, 7th Floor, Building F, Tower West, Yonghe Plaza, No. 28 Andingmen Street East, Beijing, China 100007
| | - Zhengxiang Zhang
- Thermo Fisher Scientific, 7th Floor, Building F, Tower West, Yonghe Plaza, No. 28 Andingmen Street East, Beijing, China 100007
| | - Guanbo Wang
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, China 210023
| | - Wenjun Tong
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, China 210023
| | - David Da Yong Chen
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, China 210023
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
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7
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Dai J, Lamp J, Xia Q, Zhang Y. Capillary Isoelectric Focusing-Mass Spectrometry Method for the Separation and Online Characterization of Intact Monoclonal Antibody Charge Variants. Anal Chem 2018; 90:2246-2254. [DOI: 10.1021/acs.analchem.7b04608] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jun Dai
- Bristol-Myers Squibb Research and Development, P.O.
Box 4000, Princeton, New Jersey 08543, United States
| | - Jared Lamp
- CMP Scientific, Corporation, 760 Parkside Avenue, Suite 211, Brooklyn, New York 11226, United States
| | - Qiangwei Xia
- CMP Scientific, Corporation, 760 Parkside Avenue, Suite 211, Brooklyn, New York 11226, United States
| | - Yingru Zhang
- Bristol-Myers Squibb Research and Development, P.O.
Box 4000, Princeton, New Jersey 08543, United States
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8
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Páger C, Biherczová N, Ligetvári R, Berkics BV, Pongrácz T, Sándor V, Bufa A, Poór V, Vojs Staňová A, Kilár F. Advanced online mass spectrometry detection of proteins separated by capillary isoelectric focusing after sequential injection. J Sep Sci 2017; 40:4825-4834. [DOI: 10.1002/jssc.201700695] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 10/02/2017] [Accepted: 10/06/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Csilla Páger
- Institute of Bioanalysis and Szentágothai Research Center; University of Pécs; Pécs Hungary
| | - Nikoleta Biherczová
- Department of Analytical Chemistry; Faculty of Natural Sciences; Comenius University in Bratislava; Bratislava Slovak Republic
| | - Roland Ligetvári
- Institute of Bioanalysis and Szentágothai Research Center; University of Pécs; Pécs Hungary
| | - Balázs Viktor Berkics
- Institute of Bioanalysis and Szentágothai Research Center; University of Pécs; Pécs Hungary
| | - Tamás Pongrácz
- Institute of Bioanalysis and Szentágothai Research Center; University of Pécs; Pécs Hungary
| | - Viktor Sándor
- Institute of Bioanalysis and Szentágothai Research Center; University of Pécs; Pécs Hungary
| | - Anita Bufa
- Institute of Bioanalysis and Szentágothai Research Center; University of Pécs; Pécs Hungary
| | - Viktória Poór
- Institute of Bioanalysis and Szentágothai Research Center; University of Pécs; Pécs Hungary
| | - Andrea Vojs Staňová
- Department of Analytical Chemistry; Faculty of Natural Sciences; Comenius University in Bratislava; Bratislava Slovak Republic
- University of South Bohemia in Ceske Budejovice; Faculty of Fisheries and Protection of Waters; South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses; Vodnany Czech Republic
| | - Ferenc Kilár
- Institute of Bioanalysis and Szentágothai Research Center; University of Pécs; Pécs Hungary
- Department of Analytical and Environmental Chemistry; Faculty of Sciences; University of Pécs; Pécs Hungary
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9
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El-Hawiet A. A Simple, Sensitive, and Label-Free Platform for the Quantification of Lactoferrin in Camel and Goat Milk Based on Thin-Layer Chromatography. Chromatographia 2017. [DOI: 10.1007/s10337-017-3414-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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10
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Crevillén AG, de Frutos M, Diez-Masa JC. On-chip single column transient isotachophoresis with free zone electrophoresis for preconcentration and separation of α-lactalbumin and β-lactoglobulin. Microchem J 2017. [DOI: 10.1016/j.microc.2017.04.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Gomes GMS, Bonomo RCF, Veloso CM, da Silva LHM, da Costa Ilhéu Fontan R, Gandolfi ORR, Gonçalves GRF, Sampaio VS. Acquisition of Water Solubility Diagrams in Ternary Systems (AOT/Organic Solvent/Alcohol) and Extraction of α-Lactalbumin Using Reverse Micellar Systems. J SURFACTANTS DETERG 2017. [DOI: 10.1007/s11743-017-1960-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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12
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Corbatón-Báguena MJ, Álvarez-Blanco S, Vincent-Vela MC, Ortega-Navarro E, Pérez-Herranz V. Application of electric fields to clean ultrafiltration membranes fouled with whey model solutions. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2015.12.039] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Liu M, Wang Y, Jiang L, Xia Q, Qiu Y, Fan L, Zhou J, Zhao L. Effect of γ-aminobutyric acid on the physicochemical, rheological and sensory properties of yoghurt. INT J DAIRY TECHNOL 2015. [DOI: 10.1111/1471-0307.12261] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mingying Liu
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology; Shanghai 200237 China
- State Key Laboratory of Dairy Biotechnology; Bright Dairy & Food Co., Ltd.; Shanghai 200237 China
- Shanghai Institute of Manufacturing Technology & Collaborative Innovation Centre; Shanghai 200237 China
| | - Yaosong Wang
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology; Shanghai 200237 China
- State Key Laboratory of Dairy Biotechnology; Bright Dairy & Food Co., Ltd.; Shanghai 200237 China
- Shanghai Institute of Manufacturing Technology & Collaborative Innovation Centre; Shanghai 200237 China
| | - Lihua Jiang
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology; Shanghai 200237 China
- State Key Laboratory of Dairy Biotechnology; Bright Dairy & Food Co., Ltd.; Shanghai 200237 China
- Shanghai Institute of Manufacturing Technology & Collaborative Innovation Centre; Shanghai 200237 China
| | - Quanming Xia
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology; Shanghai 200237 China
- State Key Laboratory of Dairy Biotechnology; Bright Dairy & Food Co., Ltd.; Shanghai 200237 China
- Shanghai Institute of Manufacturing Technology & Collaborative Innovation Centre; Shanghai 200237 China
| | - Yongjun Qiu
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology; Shanghai 200237 China
- State Key Laboratory of Dairy Biotechnology; Bright Dairy & Food Co., Ltd.; Shanghai 200237 China
- Shanghai Institute of Manufacturing Technology & Collaborative Innovation Centre; Shanghai 200237 China
| | - Liqiang Fan
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology; Shanghai 200237 China
- State Key Laboratory of Dairy Biotechnology; Bright Dairy & Food Co., Ltd.; Shanghai 200237 China
- Shanghai Institute of Manufacturing Technology & Collaborative Innovation Centre; Shanghai 200237 China
| | - Jiachun Zhou
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology; Shanghai 200237 China
- State Key Laboratory of Dairy Biotechnology; Bright Dairy & Food Co., Ltd.; Shanghai 200237 China
- Shanghai Institute of Manufacturing Technology & Collaborative Innovation Centre; Shanghai 200237 China
| | - Liming Zhao
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology; Shanghai 200237 China
- State Key Laboratory of Dairy Biotechnology; Bright Dairy & Food Co., Ltd.; Shanghai 200237 China
- Shanghai Institute of Manufacturing Technology & Collaborative Innovation Centre; Shanghai 200237 China
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14
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Chen Q, Zhang DD, Wang MM, Chen XW, Wang JH. A novel organic–inorganic hybrid polyoxometalate for the selective adsorption/isolation of β-lactoglobulin. J Mater Chem B 2015; 3:6964-6970. [DOI: 10.1039/c5tb01298h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A novel polyoxometalate (POM)-based organic–inorganic hybrid is preparedviaa one-pot hydrothermal reaction between Keggin POM and a star-like N-donor ligand. The hybrid exhibits excellent adsorption performance towards β-lactoglobulin with a favorable sorption capacity.
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Affiliation(s)
- Qing Chen
- Research Center for Analytical Sciences
- College of Sciences
- Northeastern University
- Shenyang 110819
- China
| | - Dan-Dan Zhang
- Research Center for Analytical Sciences
- College of Sciences
- Northeastern University
- Shenyang 110819
- China
| | - Meng-Meng Wang
- Research Center for Analytical Sciences
- College of Sciences
- Northeastern University
- Shenyang 110819
- China
| | - Xu-Wei Chen
- Research Center for Analytical Sciences
- College of Sciences
- Northeastern University
- Shenyang 110819
- China
| | - Jian-Hua Wang
- Research Center for Analytical Sciences
- College of Sciences
- Northeastern University
- Shenyang 110819
- China
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15
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Przybylski C, Mokaddem M, Prull-Janssen M, Saesen E, Lortat-Jacob H, Gonnet F, Varenne A, Daniel R. On-line capillary isoelectric focusing hyphenated to native electrospray ionization mass spectrometry for the characterization of interferon-γ and variants. Analyst 2015; 140:543-50. [DOI: 10.1039/c4an01305k] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The on-line hyphenation of Capillary IsoElectric Focusing (CIEF) with ElectroSpray Ionization Mass Spectrometry (ESI/MS) has been carried out in a non-denaturing detection mode at the CIEF-MS interface.
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Affiliation(s)
- Cédric Przybylski
- CNRS
- Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement (UMR 8587)
- Evry
- France
- Université Evry-Val-D'Essonne
| | - Meriem Mokaddem
- Chimie ParisTech
- Ecole Nationale Supérieure de Chimie
- Unité de Technologies Chimiques et Biologiques pour la Santé
- Paris
- France
| | - Mehdi Prull-Janssen
- CNRS
- Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement (UMR 8587)
- Evry
- France
- Université Evry-Val-D'Essonne
| | - Els Saesen
- Université Grenoble Alpes
- Institut de Biologie Structurale (IBS)
- Grenoble
- France
- CNRS
| | - Hugues Lortat-Jacob
- Université Grenoble Alpes
- Institut de Biologie Structurale (IBS)
- Grenoble
- France
- CNRS
| | - Florence Gonnet
- CNRS
- Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement (UMR 8587)
- Evry
- France
- Université Evry-Val-D'Essonne
| | - Anne Varenne
- Chimie ParisTech
- Ecole Nationale Supérieure de Chimie
- Unité de Technologies Chimiques et Biologiques pour la Santé
- Paris
- France
| | - Régis Daniel
- CNRS
- Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement (UMR 8587)
- Evry
- France
- Université Evry-Val-D'Essonne
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16
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Chen K, Rana S, Moyano DF, Xu Y, Guo X, Rotello VM. Optimizing the selective recognition of protein isoforms through tuning of nanoparticle hydrophobicity. NANOSCALE 2014; 6:6492-6495. [PMID: 24838611 PMCID: PMC4073475 DOI: 10.1039/c4nr01085j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
We demonstrate that ligand hydrophobicity can be used to increase affinity and selectivity of binding between monolayer-protected cationic gold nanoparticles and β-lactoglobulin protein isoforms containing two amino acid mutations.
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Affiliation(s)
- Kaimin Chen
- Department of Chemistry, University of Massachusetts at Amherst, Amherst, MA 01003, USA
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Subinoy Rana
- Department of Chemistry, University of Massachusetts at Amherst, Amherst, MA 01003, USA
| | - Daniel F. Moyano
- Department of Chemistry, University of Massachusetts at Amherst, Amherst, MA 01003, USA
| | - Yisheng Xu
- Department of Chemistry, University of Massachusetts at Amherst, Amherst, MA 01003, USA
| | - Xuhong Guo
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Vincent M. Rotello
- Department of Chemistry, University of Massachusetts at Amherst, Amherst, MA 01003, USA
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17
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Ibáñez C, Simó C, García-Cañas V, Cifuentes A, Castro-Puyana M. Metabolomics, peptidomics and proteomics applications of capillary electrophoresis-mass spectrometry in Foodomics: A review. Anal Chim Acta 2013; 802:1-13. [DOI: 10.1016/j.aca.2013.07.042] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 06/20/2013] [Accepted: 07/17/2013] [Indexed: 01/05/2023]
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18
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Del Mar Barrios-Romero M, Crevillén AG, Diez-Masa JC. Development of an SDS-gel electrophoresis method on SU-8 microchips for protein separation with LIF detection: Application to the analysis of whey proteins. J Sep Sci 2013; 36:2530-7. [PMID: 23720160 DOI: 10.1002/jssc.201300275] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Revised: 05/10/2013] [Accepted: 05/13/2013] [Indexed: 02/06/2023]
Abstract
This work describes the development of an SDS-gel electrophoresis method for the analysis of major whey proteins (α-lactalbumin, β-lactoglobulin, and BSA) carried out in SU-8 microchips. The method uses a low-viscosity solution of dextran as a sieving polymer. A commercial coating agent (EOTrol LN) was added to the separation buffer to control the EOF of the chips. The potential of this coating agent to prevent protein adsorption on the walls of the SU-8 channels was also evaluated. Additionally, the fluorescence background of the SU-8 material was studied to improve the sensitivity of the method. By selecting an excitation wavelength of 532 nm at which the background fluorescence remains low and by replacing the mercury arc lamp by a laser in the detection system, an LOD in the nanomolar range was achieved for proteins derivatized with the fluorogenic reagent Chromeo P540. Finally, the method was applied to the analysis of milk samples, demonstrating the potential of SU-8 microchips for the analysis of proteins in complex food samples.
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19
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Horká M, Karásek P, Salplachta J, Růžička F, Vykydalová M, Kubesová A, Dráb V, Roth M, Slais K. Capillary isoelectric focusing of probiotic bacteria from cow's milk in tapered fused silica capillary with off-line matrix-assisted laser desorption/ionization time-of-flight mass spectrometry identification. Anal Chim Acta 2013; 788:193-9. [PMID: 23845500 DOI: 10.1016/j.aca.2013.05.059] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 05/06/2013] [Accepted: 05/18/2013] [Indexed: 11/28/2022]
Abstract
In this study, combination of capillary isoelectric focusing (CIEF) in tapered fused silica (FS) capillary with matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) is presented as an efficient approach for unambiguous identification of probiotic bacteria in real sample. For this purpose, bacteria within genus Lactobacillus were selected as model bioanalytes and cow's milk was selected as a biological sample. CIEF analysis of both the cultivated bacteria and the bacteria in the milk was optimized and isoelectric points characterizing the examined bacteria were subsequently determined independently of the bacterial sample origin. The use of tapered FS capillary significantly enhanced the separation capacity and efficiency of the CIEF analyses performed. In addition, the cell number injected into the tapered FS capillary was quantified and an excellent linearity of the calibration curves was achieved which enabled quantitative analysis of the bacteria by CIEF with UV detection. The minimum detectable number of bacterial cells was 2×10(6) mL(-1). Finally, cow's milk spiked with the selected bacterium was analyzed by CIEF in tapered FS capillary, the focused and detected bacterial cells were collected from the capillary, deposited onto the cultivation medium, and identified using MALDI-TOF MS afterward. Our results have revealed that the proposed procedure can be advantageously used for unambiguous identification of probiotic bacteria in a real sample.
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Affiliation(s)
- Marie Horká
- Institute of Analytical Chemistry of the ASCR, vvi, Brno, Czech Republic.
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20
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Bonn R, Rampal S, Rae T, Fishpaugh J. CIEF method optimization: Development of robust and reproducible protein reagent characterization in the clinical immunodiagnostic industry. Electrophoresis 2013; 34:825-32. [DOI: 10.1002/elps.201200529] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 10/29/2012] [Accepted: 11/04/2012] [Indexed: 11/09/2022]
Affiliation(s)
- Ryan Bonn
- Abbott Laboratories; Abbott Diagnostics Division; Research and Development; IL; USA
| | | | - Tracey Rae
- Abbott Laboratories; Abbott Diagnostics Division; Research and Development; IL; USA
| | - Jeffrey Fishpaugh
- Abbott Laboratories; Abbott Diagnostics Division; Research and Development; IL; USA
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21
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Haselberg R, de Jong GJ, Somsen GW. CE-MS for the analysis of intact proteins 2010-2012. Electrophoresis 2012; 34:99-112. [DOI: 10.1002/elps.201200439] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Revised: 10/08/2012] [Accepted: 10/09/2012] [Indexed: 12/18/2022]
Affiliation(s)
- Rob Haselberg
- Biomolecular Analysis; Utrecht University; CG Utrecht; The Netherlands
| | | | - Govert W. Somsen
- Biomolecular Analysis; Utrecht University; CG Utrecht; The Netherlands
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22
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Zhu G, Sun L, Yang P, Dovichi NJ. On-line amino acid-based capillary isoelectric focusing-ESI-MS/MS for protein digests analysis. Anal Chim Acta 2012; 750:207-11. [PMID: 23062442 PMCID: PMC3474973 DOI: 10.1016/j.aca.2012.04.026] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Revised: 04/20/2012] [Accepted: 04/21/2012] [Indexed: 11/25/2022]
Abstract
Six amino acids with pIs that ranged from 3.2 to 9.7 were used as ampholytes to establish a pH gradient in capillary isoelectric focusing. This amino acid-based capillary isoelectric focusing (cIEF) was coupled with ESI-MS/MS using an electrokinetically pumped sheath-flow interface for peptide analysis. Amino acid-based isoelectric focusing generates a two-order of magnitude lower background signal than commercial ampholytes in the important m/z range of 300-1800. Good focusing was achieved for insulin receptor, which produced ~10 s peak width. For 0.1 mg mL(-1) bovine serum albumin (BSA) digests, 24±1 peptides (sequence coverage 47±4%) were identified in triplicate analysis. As expected, the BSA peptides were separated according to their pI. The concentration detection limit for the BSA digests is 7 nM and the mass detection limit is 7 fmole. A solution of six bovine protein tryptic digests spanning 5 orders of magnitude in concentration was analyzed by amino acid based cIEF-ESI-MS/MS. Five proteins with a concentration range spanning 4 orders of magnitude were identified in triplicate runs. Using amino acid based cIEF-ESI-MS/MS, 112 protein groups and 303 unique peptides were identified in triplicate runs of a RAW 264.7 cell homogenate protein digest. In comparison with ampholyte based cIEF-ESI-MS/MS, amino acid based cIEF-ESI-MS/MS produces higher resolution of five acidic peptides, much cleaner mass spectra, and higher protein spectral counts.
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Affiliation(s)
- Guijie Zhu
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA
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23
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Páger C, Vargová A, Takácsi-Nagy A, Dörnyei Á, Kilár F. Effect of electrolyte pH on CIEF with narrow pH range ampholytes. Electrophoresis 2012; 33:3269-75. [DOI: 10.1002/elps.201200175] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2012] [Revised: 07/05/2012] [Accepted: 07/23/2012] [Indexed: 01/19/2023]
Affiliation(s)
- Csilla Páger
- Institute of Bioanalysis; Faculty of Medicine; University of Pécs; Pécs; Hungary
| | - Andrea Vargová
- Department of Analytical and Environmental Chemistry; Faculty of Sciences; University of Pécs; Pécs; Hungary
| | - Anna Takácsi-Nagy
- Institute of Bioanalysis; Faculty of Medicine; University of Pécs; Pécs; Hungary
| | - Ágnes Dörnyei
- Institute of Bioanalysis; Faculty of Medicine; University of Pécs; Pécs; Hungary
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24
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Zhao SS, Zhong X, Tie C, Chen DD. Capillary electrophoresis-mass spectrometry for analysis of complex samples. Proteomics 2012; 12:2991-3012. [DOI: 10.1002/pmic.201200221] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Revised: 07/10/2012] [Accepted: 07/18/2012] [Indexed: 12/20/2022]
Affiliation(s)
- Shuai Sherry Zhao
- Department of Chemistry; University of British Columbia; Vancouver BC Canada
| | - Xuefei Zhong
- Department of Chemistry; University of British Columbia; Vancouver BC Canada
| | - Cai Tie
- Department of Chemistry; University of British Columbia; Vancouver BC Canada
| | - David D.Y. Chen
- Department of Chemistry; University of British Columbia; Vancouver BC Canada
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25
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Gasilova N, Gassner AL, Girault HH. Analysis of major milk whey proteins by immunoaffinity capillary electrophoresis coupled with MALDI-MS. Electrophoresis 2012; 33:2390-8. [DOI: 10.1002/elps.201200079] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Natalia Gasilova
- Laboratoire d'Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne; Lausanne; Switzerland
| | - Anne-Laure Gassner
- Laboratoire d'Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne; Lausanne; Switzerland
| | - Hubert H. Girault
- Laboratoire d'Electrochimie Physique et Analytique, Ecole Polytechnique Fédérale de Lausanne; Lausanne; Switzerland
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26
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Chingin K, Astorga-Wells J, Pirmoradian Najafabadi M, Lavold T, Zubarev RA. Separation of Polypeptides by Isoelectric Point Focusing in Electrospray-Friendly Solution Using a Multiple-Junction Capillary Fractionator. Anal Chem 2012; 84:6856-62. [DOI: 10.1021/ac3013016] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Konstantin Chingin
- Department of Medical
Biochemistry
and Biophysics, Karolinska Institutet,
Scheeles väg 2, SE-17177 Stockholm, Sweden
| | - Juan Astorga-Wells
- Department of Medical
Biochemistry
and Biophysics, Karolinska Institutet,
Scheeles väg 2, SE-17177 Stockholm, Sweden
- Biomotif AB, Stockholm,
Sweden
| | - Mohammad Pirmoradian Najafabadi
- Department of Medical
Biochemistry
and Biophysics, Karolinska Institutet,
Scheeles väg 2, SE-17177 Stockholm, Sweden
- Biomotif AB, Stockholm,
Sweden
| | | | - Roman A. Zubarev
- Department of Medical
Biochemistry
and Biophysics, Karolinska Institutet,
Scheeles väg 2, SE-17177 Stockholm, Sweden
- Science for Life Laboratory, Stockholm, Sweden
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27
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Roncada P, Piras C, Soggiu A, Turk R, Urbani A, Bonizzi L. Farm animal milk proteomics. J Proteomics 2012; 75:4259-74. [PMID: 22641156 DOI: 10.1016/j.jprot.2012.05.028] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Revised: 05/09/2012] [Accepted: 05/16/2012] [Indexed: 12/28/2022]
Abstract
Milk is one of the most important nutrients for humans during lifetime. Farm animal milk in all its products like cheese and other fermentation and transformation products is a widespread nutrient for the entire life of humans. Proteins are key molecules of the milk functional component repertoire and their investigation represents a major challenge. Proteins in milk, such as caseins, contribute to the formation of micelles that are different from species to species in dimension and casein-type composition; they are an integral part of the MFGM (Milk Fat Globule Membrane) that has being exhaustively studied in recent years. Milk proteins can act as enzymes or have an antimicrobial activity; they could act as hormones and, last but not least, they have a latent physiological activity encoded in their primary structure that turns active when the protein is cleaved by fermentation or digestion processes. In this review we report the last progress in proteomics, peptidomics and bioinformatics. These new approaches allow us to better characterize the milk proteome of farm animal species, to highlight specific PTMs, the peptidomic profile and even to predict the potential nutraceutical properties of the analyzed proteins.
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Affiliation(s)
- Paola Roncada
- Istituto Sperimentale Italiano L. Spallanzani, Milano, Italy.
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28
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Zhong X, Maxwell EJ, Ratnayake C, Mack S, Chen DDY. Flow-Through Microvial Facilitating Interface of Capillary Isoelectric Focusing and Electrospray Ionization Mass Spectrometry. Anal Chem 2011; 83:8748-55. [DOI: 10.1021/ac202130f] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Xuefei Zhong
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada V6T 1Z1
| | - E. Jane Maxwell
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada V6T 1Z1
| | - Chitra Ratnayake
- Beckman Coulter, Inc., 250 S. Kraemer Blvd., Brea, California 92822-8000, United States
| | - Scott Mack
- Beckman Coulter, Inc., 250 S. Kraemer Blvd., Brea, California 92822-8000, United States
| | - David D. Y. Chen
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada V6T 1Z1
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29
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Lecoeur M, Goossens JF, Vaccher C, Bonte JP, Foulon C. A multivariate approach for the determination of isoelectric point of human carbonic anhydrase isoforms by capillary isoelectric focusing. Electrophoresis 2011; 32:2857-66. [DOI: 10.1002/elps.201100219] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2011] [Revised: 05/09/2011] [Accepted: 05/11/2011] [Indexed: 01/11/2023]
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30
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Liu R, Yang E, Liu C, Xue W. Tilapia (Oreochromis mossambicus) allergens characterized by ELISA, SDS-PAGE, 2D gels, Western blotting and MALDI-TOF mass spectrometry. Int J Food Sci Nutr 2011; 63:259-66. [DOI: 10.3109/09637486.2011.619966] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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31
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Páger C, Dörnyei Á, Kilár F. Sequential injection setup for capillary isoelectric focusing combined with MS detection. Electrophoresis 2011; 32:1875-84. [DOI: 10.1002/elps.201100012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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