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Jin R, Song D, Xiong H, Ai L, Ma P, Sun Y. Magnetic core/shell Fe3
O4
/Au nanoparticles for studies of quinolones binding to protein by fluorescence spectroscopy. LUMINESCENCE 2015; 31:499-506. [DOI: 10.1002/bio.2988] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 06/29/2015] [Accepted: 07/01/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Rui Jin
- College of Chemistry; Jilin University; Changchun People's Republic of China
| | - Daqian Song
- College of Chemistry; Jilin University; Changchun People's Republic of China
| | - Huixia Xiong
- College of Chemistry; Jilin University; Changchun People's Republic of China
| | - Lisha Ai
- College of Chemistry; Jilin University; Changchun People's Republic of China
| | - Pinyi Ma
- College of Chemistry; Jilin University; Changchun People's Republic of China
| | - Ying Sun
- College of Chemistry; Jilin University; Changchun People's Republic of China
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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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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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Yue Y, Zhang Y, Qin J, Chen X. Study of the interaction between esculetin and human serum albumin by multi-spectroscopic method and molecular modeling. J Mol Struct 2008. [DOI: 10.1016/j.molstruc.2007.11.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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5
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Xiao JB, Chen JW, Cao H, Ren FL, Yang CS, Chen Y, Xu M. Study of the interaction between baicalin and bovine serum albumin by multi-spectroscopic method. J Photochem Photobiol A Chem 2007. [DOI: 10.1016/j.jphotochem.2007.04.027] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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6
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Zeng LL, Yu L, Li ZY, Perrett S, Zhou JM. Effect of C-terminal truncation on the molecular chaperone function and dimerization of Escherichia coli trigger factor. Biochimie 2005; 88:613-9. [PMID: 16380200 DOI: 10.1016/j.biochi.2005.11.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2005] [Accepted: 11/14/2005] [Indexed: 11/27/2022]
Abstract
To examine the role of the C-terminal domain in the chaperone function of trigger factor (TF), a number of truncation mutants were constructed, namely: TF419, TF389, TF380, TF360, TF344, and TF251, in which the C-terminal 13, 43, 52, 72, 88 residues or the entire C-domain were deleted, respectively. Co-expression of mutant chicken adenylate kinase (AK) with TF and the C-terminal truncation mutants was achieved using a plasmid pBVAT that allows expression of TF and AK from a single plasmid. The results show that truncation of the C-terminus of TF has only minor effect on its ability to assist AK refolding in vivo. Further, ribosome-binding experiments indicate that C-terminal truncation mutants can still bind to the ribosome and the presence of the C-terminus may in fact lower the affinity of TF for the ribosome in vivo. This indicates that the C-domain of trigger factor may not be essential for the ribosome-associated molecular chaperone function of TF. However, the purified TF C-terminal truncation mutants had a dramatically reduced ability to assist rabbit muscle GAPDH refolding in vitro and a reduced tendency to dimerize. This shows that the structural integrity of the C-terminus contributes to both the chaperone function of TF and the stability of the dimeric form.
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Affiliation(s)
- Li-Ling Zeng
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Beijing 100101, China
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