Quinary Interactions Weaken the Electric Field Generated by Protein Side-Chain Charges in the Cell-like Environment

doi:10.1021/jacs.6b11058

QIBEBT-IR > 蛋白质设计研究组

	Quinary Interactions Weaken the Electric Field Generated by Protein Side-Chain Charges in the Cell-like Environment
	Zhang, Ning 1,2,3; An, Liaoyuan1,2 ; Li, Jingwen 1,2,3; Liu, Zhijun 4; Yao, Lishan1,2
	2017-01-18
发表期刊	JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷号	139 期号:2 页码:647-654
摘要	The intramolecular electric field (e-field) generated by protein GB3 side-chain charges K/E10, K/E19, and D/K40 was measured in the absence or presence of macromolecular crowding. The e-field responds differently to different crowding agents-dextran, Ficoll, BSA, and E. coli cell lysate. Dextran and Ficoll have no effect on the e-field. The lysate generally weakens the e-field but the amplitude of weakening varies greatly. For example, the e-field by K19 is reduced by 67% in the presence of 90 g/L lysate, corresponding to a charge change from 0.9 to 0.3 e for K19, whereas the e-fields by D/K40 are weakened only by, similar to 7% under the same lysate concentration. The extent of the e-field weakening by BSA is in between that by Ficoll (dextran) and lysate. Further investigations, suggest that the e-field weakening mechanism by lysate is similar to that by NaCl. That is, the e-field generated by a protein surface charge affects the distribution of lysate which creates a reaction field and weakens the protein e-field. Our study indicates that the protein electrostatic property can be changed significantly due to quinary interaction with the cell environment.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1021/jacs.6b11058
关键词[WOS]	RESIDUAL DIPOLAR COUPLINGS ; NUCLEAR-MAGNETIC-RESONANCE ; NMR-SPECTROSCOPY ; LIVING CELLS ; CONFORMATIONAL EXCHANGE ; ESCHERICHIA-COLI ; LIQUID-CRYSTAL ; STABILITY ; DYNAMICS ; ANISOTROPY
收录类别	SCI
语种	英语
WOS研究方向	Chemistry
项目资助者	National Natural Science Foundation of China(31270785 ; 31270905 ; 31600690)
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000392459300021
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/9167
专题	蛋白质设计研究组
作者单位	1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Shandong Prov Key Lab Synthet Biol, Qingdao 266061, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Lab Biofuels, Qingdao 266061, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Shanghai Inst Biol Sci, Inst Biochem & Cell Biol, Natl Ctr Prot Sci Shanghai, Shanghai 201210, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ning,An, Liaoyuan,Li, Jingwen,et al. Quinary Interactions Weaken the Electric Field Generated by Protein Side-Chain Charges in the Cell-like Environment[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2017,139(2):647-654.
APA	Zhang, Ning,An, Liaoyuan,Li, Jingwen,Liu, Zhijun,&Yao, Lishan.(2017).Quinary Interactions Weaken the Electric Field Generated by Protein Side-Chain Charges in the Cell-like Environment.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,139(2),647-654.
MLA	Zhang, Ning,et al."Quinary Interactions Weaken the Electric Field Generated by Protein Side-Chain Charges in the Cell-like Environment".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 139.2(2017):647-654.