Megahertz pulse trains enable multi-hit serial femtosecond crystallography experiments at X-ray free electron lasers
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Kirkwood, Henry J
Bean, Richard
Giewekemeyer, Klaus
Martin, Andrew
Hadian-Jazi, Marjan
Wiedorn, Max O
Oberthuer, Dominik
Marman, Hugh
Adriano, Luigi
Al-Qudami, Nasser
Bajt, Sasa
Barak, Imrich
Bari, Sadia
Ve, Thomas
et al.
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Abstract
The European X-ray Free Electron Laser (XFEL) and Linac Coherent Light Source (LCLS) II are extremely intense sources of X-rays capable of generating Serial Femtosecond Crystallography (SFX) data at megahertz (MHz) repetition rates. Previous work has shown that it is possible to use consecutive X-ray pulses to collect diffraction patterns from individual crystals. Here, we exploit the MHz pulse structure of the European XFEL to obtain two complete datasets from the same lysozyme crystal, first hit and the second hit, before it exits the beam. The two datasets, separated by <1 µs, yield up to 2.1 Å resolution structures. Comparisons between the two structures reveal no indications of radiation damage or significant changes within the active site, consistent with the calculated dose estimates. This demonstrates MHz SFX can be used as a tool for tracking sub-microsecond structural changes in individual single crystals, a technique we refer to as multi-hit SFX.
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Nature Communications
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13
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© The Author(s) 2022. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
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Particle physics
Lasers and quantum electronics
Science & Technology
Multidisciplinary Sciences
Science & Technology - Other Topics
RADIATION-DAMAGE
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Holmes, S; Kirkwood, HJ; Bean, R; Giewekemeyer, K; Martin, A; Hadian-Jazi, M; Wiedorn, MO; Oberthuer, D; Marman, H; Adriano, L; Al-Qudami, N; Bajt, S; Barak, I; Bari, S; Ve, T; et al., Megahertz pulse trains enable multi-hit serial femtosecond crystallography experiments at X-ray free electron lasers, Nature Communications, 2022, 13, pp. 4708