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Title: Single-particle imaging without symmetry constraints at an X-ray free-electron laser

Journal Article · · IUCrJ

The analysis of a single-particle imaging (SPI) experiment performed at the AMO beamline at LCLS as part of the SPI initiative is presented here. A workflow for the three-dimensional virus reconstruction of the PR772 bacteriophage from measured single-particle data is developed. It consists of several well defined steps including single-hit diffraction data classification, refined filtering of the classified data, reconstruction of three-dimensional scattered intensity from the experimental diffraction patterns by orientation determination and a final three-dimensional reconstruction of the virus electron density without symmetry constraints. The analysis developed here revealed and quantified nanoscale features of the PR772 virus measured in this experiment, with the obtained resolution better than 10 nm, with a clear indication that the structure was compressed in one direction and, as such, deviates from ideal icosahedral symmetry.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231; AC02-76SF00515
OSTI ID:
1471255
Alternate ID(s):
OSTI ID: 1490704
Journal Information:
IUCrJ, Journal Name: IUCrJ Vol. 5 Journal Issue: 6; ISSN 2052-2525
Publisher:
International Union of Crystallography (IUCr)Copyright Statement
Country of Publication:
United Kingdom
Language:
English
Citation Metrics:
Cited by: 54 works
Citation information provided by
Web of Science

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Biological single-particle imaging using XFELs – towards the next resolution revolution journal October 2018
A guide to sample delivery systems for serial crystallography journal August 2019
Supervised classification methods for flash X-ray single particle diffraction imaging journal January 2019
Megahertz single-particle imaging at the European XFEL text January 2020
The Potential of EuPRAXIA@SPARC_LAB for Radiation Based Techniques journal March 2019
The XFEL Protein Crystallography: Developments and Perspectives journal July 2019