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DOI	10.1073/pnas.2020486118
	Early-stage dynamics of chloride ion–pumping rhodopsin revealed by a femtosecond X-ray laser
	Yun J.-H.; Li X.; Yue J.; Park J.-H.; Jin Z.; Li C.; Hu H.; Shi Y.; Pandey S.; Carbajo S.; Boutet S.; Hunter M.S.; Liang M.; Sierra R.G.; Lane T.J.; Zhou L.; Weierstall U.; Zatsepin N.A.; Ohki M.; Tame J.R.H.; Park S.-Y.; Spence J.C.H.; Zhang W.; Schmidt M.; Lee W.; Liu H.
发表日期	2021
ISSN	00278424
卷号	118 期号:13
英文摘要	Chloride ion–pumping rhodopsin (ClR) in some marine bacteria utilizes light energy to actively transport Cl− into cells. How the ClR initiates the transport is elusive. Here, we show the dynamics of ion transport observed with time-resolved serial femtosecond (fs) crystallography using the Linac Coherent Light Source. X-ray pulses captured structural changes in ClR upon flash illumination with a 550 nm fs-pumping laser. High-resolution structures for five time points (dark to 100 ps after flashing) reveal complex and coordinated dynamics comprising retinal isomerization, water molecule rearrangement, and conformational changes of various residues. Combining data from time-resolved spectroscopy experiments and molecular dynamics simulations, this study reveals that the chloride ion close to the Schiff base undergoes a dissociation–diffusion process upon light-triggered retinal isomerization. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Light-driven chloride-pumping rhodopsin; Serial femtosecond crystallography; Time-resolved crystallography; X-ray free-electron laser
语种	英语
scopus关键词	chloride ion; chloride ion pumping rhodopsin; rhodopsin; Schiff base; unclassified drug; Article; conformational transition; controlled study; crystal structure; crystallography; diffusion; dissociation; Halobacterium salinarum; illumination; ion transport; isomerization; molecular dynamics; nonhuman; priority journal; protein interaction; time resolved crystallography; time resolved spectroscopy
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/180105
作者单位	Department of Biochemistry, College of Life Sciences and Biotechnology, Yonsei University, Seodaemun-gu, Seoul, 120-749, South Korea; Complex Systems Division, Beijing Computational Science Research Center, Haidian, Beijing, 100193, China; Department of Engineering Physics, Tsinghua University, Beijing, 100086, China; Department of Physics, Beijing Normal University, Haidian, Beijing, 100875, China; Department of Physics, Arizona State University, Tempe, AZ 85287, United States; Physics Department, University of Wisconsin, Milwaukee, Milwaukee, WI 53201, United States; Linac Coherent Light Source, Stanford Linear Accelerator Center National Accelerator Laboratory, Menlo Park, CA 94025, United States; Department of Chemistry and Physics, Australian Research Council Centre of Excellence in Advanced Molecular Imaging, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086, Australia; Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, Yok...
推荐引用方式 GB/T 7714	Yun J.-H.,Li X.,Yue J.,等. Early-stage dynamics of chloride ion–pumping rhodopsin revealed by a femtosecond X-ray laser[J],2021,118(13).
APA	Yun J.-H..,Li X..,Yue J..,Park J.-H..,Jin Z..,...&Liu H..(2021).Early-stage dynamics of chloride ion–pumping rhodopsin revealed by a femtosecond X-ray laser.Proceedings of the National Academy of Sciences of the United States of America,118(13).
MLA	Yun J.-H.,et al."Early-stage dynamics of chloride ion–pumping rhodopsin revealed by a femtosecond X-ray laser".Proceedings of the National Academy of Sciences of the United States of America 118.13(2021).