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Selenium single-wavelength anomalous diffraction de novo phasing using an X-ray-free electron laser

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms13388· OSTI ID:1328195
Structural information about biological macromolecules near the atomic scale provides important insight into the functions of these molecules. To date, X-ray crystallography has been the predominant method used for macromolecular structure determination. However, challenges exist when solving structures with X-rays, including the phase problem and radiation damage. X-ray-free electron lasers (X-ray FELs) have enabled collection of diffraction information before the onset of radiation damage, yet the majority of structures solved at X-ray FELs have been phased using external information via molecular replacement. De novo phasing at X-ray FELs has proven challenging due in part to per-pulse variations in intensity and wavelength. Here we report the solution of a selenobiotinyl-streptavidin structure using phases obtained by the anomalous diffraction of selenium measured at a single wavelength (Se-SAD) at the Linac Coherent Light Source. Finally, our results demonstrate Se-SAD, routinely employed at synchrotrons for novel structure determination, is now possible at X-ray FELs.
Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
Laboratory Directed Research and Development (SLAC LDRD); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1328195
Alternate ID(s):
OSTI ID: 1348912
Report Number(s):
SLAC-PUB--16833
Journal Information:
Nature Communications, Journal Name: Nature Communications Vol. 7; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (13)

Multi-wavelength anomalous diffraction de novo phasing using a two-colour X-ray free-electron laser with wide tunability journal October 2017
Viscosity-adjustable grease matrices for serial nanocrystallography journal January 2020
Two-colour serial femtosecond crystallography dataset from gadoteridol-derivatized lysozyme for MAD phasing journal December 2017
Se-SAD serial femtosecond crystallography datasets from selenobiotinyl-streptavidin journal April 2017
Climbing the Data Mountain: Processing of SFX Data book January 2018
Hydroxyethyl cellulose matrix applied to serial crystallography journal April 2017
Theoretical characterization of sulfur-to-selenium substitution in an emissive RNA alphabet: impact on H-bonding potential and photophysical properties journal January 2018
Microfluidics: From crystallization to serial time-resolved crystallography journal May 2017
The Single Particles, Clusters and Biomolecules and Serial Femtosecond Crystallography instrument of the European XFEL: initial installation journal April 2019
Use cases of lossy compression for floating-point data in scientific data sets journal May 2019
Climbing the Data Mountain: Processing of SFX Data text January 2018
The Single Particles, Clusters and Biomolecules and Serial Femtosecond Crystallography instrument of the European XFEL: initial installation text January 2019
Serial Femtosecond X-Ray Diffraction of HIV-1 Gag MA-IP6 Microcrystals at Ambient Temperature journal April 2019

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