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Dong S, Jiang Z, Liu Z, Chen L, Zhang Q, Tian Y, Sohail A, Khan MI, Xiao H, Liu X, Wang Y, Li H, Wu H, Liu W, Cao C. Purification of low-abundance lysozyme in egg white via free-flow electrophoresis with gel-filtration chromatography. Electrophoresis 2020; 41:1529-1538. [PMID: 32529672 DOI: 10.1002/elps.201900479] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 05/29/2020] [Accepted: 05/31/2020] [Indexed: 11/07/2022]
Abstract
As an effective separation tool, free-flow electrophoresis has not been used for purification of low-abundance protein in complex sample matrix. Herein, lysozyme in complex egg white matrix was chosen as the model protein for demonstrating the purification of low-content peptide via an FFE coupled with gel fitration chromatography (GFC). The crude lysozyme in egg while was first separated via free-flow zone electrophoresis (FFZE). After that, the fractions with lysozyme activity were condensed via lyophilization. Thereafter, the condensed fractions were further purified via a GFC of Sephadex G50. In all of the experiments, a special poly(acrylamide- co-acrylic acid) (P(AM-co-AA)) gel electrophoresis and a mass spectrometry were used for identification of lysozyme. The conditions of FFZE were optimized as follows: 130 μL/min sample flow rate, 4.9 mL/min background buffer of 20 mM pH 5.5 Tris-Acetic acid, 350 V, and 14 °C as well as 2 mg/mL protein content of crude sample. It was found that the purified lysozyme had the purity of 80% and high activity as compared with its crude sample with only 1.4% content and undetectable activity. The recoveries in the first and second separative steps were 65% and 82%, respectively, and the total recovery was about 53.3%. The reasons of low recovery might be induced by diffusion of lysozyme out off P(AM-co-AA) gel and co-removing of high-abundance egg ovalbumin. All these results indicated FFE could be used as alternative tool for purification of target solute with low abundance.
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Affiliation(s)
- Shuang Dong
- Department of Instrument Science and Engineering, School of Electronic Information & Electrical Engineering, Shanghai Jiao Tong University, Shanghai, P. R. China.,State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Ziqin Jiang
- College of Biological Sciences, China Agricultural University, Beijing, P. R. China.,State Key Laboratory of Agro-biotechnology, China Agricultural University, Beijing, P. R. China
| | - Zhen Liu
- Department of Instrument Science and Engineering, School of Electronic Information & Electrical Engineering, Shanghai Jiao Tong University, Shanghai, P. R. China.,State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Ling Chen
- Department of Instrument Science and Engineering, School of Electronic Information & Electrical Engineering, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Qiang Zhang
- Department of Instrument Science and Engineering, School of Electronic Information & Electrical Engineering, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Youli Tian
- Department of Instrument Science and Engineering, School of Electronic Information & Electrical Engineering, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Amir Sohail
- Department of Instrument Science and Engineering, School of Electronic Information & Electrical Engineering, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Muhammad Idrees Khan
- Department of Instrument Science and Engineering, School of Electronic Information & Electrical Engineering, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Hua Xiao
- State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Xiaoping Liu
- Department of Instrument Science and Engineering, School of Electronic Information & Electrical Engineering, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Yuxing Wang
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Honggen Li
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Hanyu Wu
- College of Biological Sciences, China Agricultural University, Beijing, P. R. China.,State Key Laboratory of Agro-biotechnology, China Agricultural University, Beijing, P. R. China
| | - Weiwen Liu
- Department of Instrument Science and Engineering, School of Electronic Information & Electrical Engineering, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Chengxi Cao
- Department of Instrument Science and Engineering, School of Electronic Information & Electrical Engineering, Shanghai Jiao Tong University, Shanghai, P. R. China.,State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, P. R. China
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Wang Q, Li L, Lu Z, Hu X, Li Z, Sun G. Highly Dispersed Graphene Network Achieved by using a Nanoparticle‐Crosslinked Polymer to Create a Sensitive Conductive Sensor. ChemElectroChem 2019. [DOI: 10.1002/celc.201901152] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qiao Wang
- Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of Macau, Avenida da Universidade Taipa, Macau SAR China
| | - Lefan Li
- Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of Macau, Avenida da Universidade Taipa, Macau SAR China
| | - Zeyu Lu
- Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of Macau, Avenida da Universidade Taipa, Macau SAR China
| | - Xiaosai Hu
- Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of Macau, Avenida da Universidade Taipa, Macau SAR China
| | - Zongjin Li
- Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of Macau, Avenida da Universidade Taipa, Macau SAR China
| | - Guoxing Sun
- Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of Macau, Avenida da Universidade Taipa, Macau SAR China
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Martinez MV, Molina M, Barbero CA. Poly(N-isopropylacrylamide) Cross-Linked Gels as Intrinsic Amphiphilic Materials: Swelling Properties Used to Build Novel Interphases. J Phys Chem B 2018; 122:9038-9048. [DOI: 10.1021/acs.jpcb.8b07625] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- María V. Martinez
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), Universidad Nacional de Río Cuarto (UNRC)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ruta 8 y 36 km 601, X5804ZAB Río Cuarto, Córdoba, Argentina
| | - Maria Molina
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), Universidad Nacional de Río Cuarto (UNRC)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ruta 8 y 36 km 601, X5804ZAB Río Cuarto, Córdoba, Argentina
| | - Cesar A. Barbero
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), Universidad Nacional de Río Cuarto (UNRC)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ruta 8 y 36 km 601, X5804ZAB Río Cuarto, Córdoba, Argentina
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Feng X, Liu J, Xu G, Zhang X, Su X, Li W, Zhang A. Thermoresponsive double network cryogels from dendronized copolymers showing tunable encapsulation and release of proteins. J Mater Chem B 2018; 6:1903-1911. [DOI: 10.1039/c7tb03352d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Thermoresponsive double network cryogels were prepared from OEG-based dendronized copolymers with PVA, which can reversibly capture and release proteins.
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Affiliation(s)
- Xiaoqing Feng
- Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University
- Shanghai 200444
- China
| | - Jie Liu
- Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University
- Shanghai 200444
- China
| | - Gang Xu
- Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University
- Shanghai 200444
- China
| | - Xiacong Zhang
- Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University
- Shanghai 200444
- China
| | - Xinyan Su
- Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University
- Shanghai 200444
- China
| | - Wen Li
- Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University
- Shanghai 200444
- China
- School of Engineering and Applied Sciences, Harvard University
- Cambridge
| | - Afang Zhang
- Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University
- Shanghai 200444
- China
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