Opportunities and challenges for timeresolved studies of protein structural dynamics at X-ray free-electron lasers

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Abstract

X-ray free-electron lasers (XFELs) are revolutionary X-ray sources. Their time structure, providing X-ray pulses of a few tens of femtoseconds in duration; and their extreme peak brilliance, delivering approximately 1012 X-ray photons per pulse and facilitating sub-micrometre focusing, distinguish XFEL sources from synchrotron radiation. In this opinion piece, I argue that these properties of XFEL radiation will facilitate new discoveries in life science. I reason that time-resolved serial femtosecond crystallography and time-resolved wide angle X-ray scattering are promising areas of scientific investigation that will be advanced by XFEL capabilities, allowing new scientific questions to be addressed that are not accessible using established methods at storage ring facilities. These questions include visualizing ultrafast protein structural dynamics on the femtosecond to picosecond time-scale, as well as time-resolved diffraction studies of non-cyclic reactions. I argue that these emerging opportunities will stimulate a renaissance of interest in time-resolved structural biochemistry. © 2014 The Author(s) Published by the Royal Society. All rights reserved.

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CITATION STYLE

APA

Neutze, R. (2014). Opportunities and challenges for timeresolved studies of protein structural dynamics at X-ray free-electron lasers. Philosophical Transactions of the Royal Society B: Biological Sciences, 369(1647). https://doi.org/10.1098/rstb.2013.0318

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