학술논문

Kilohertz serial crystallography with the JUNGFRAU detector at a fourth-generation synchrotron source
Document Type
Source
IUCrJ eSSENCE: The e-Science Collaboration. 10(Pt 6):729-737
Subject
data networks
fourth-generation synchrotrons
JUNGFRAU detector
macromolecular crystallography
protein structure
time-resolved serial crystallography
X-ray detectors
Naturvetenskap
Fysik
Atom- och molekylfysik och optik
Natural Sciences
Physical Sciences
Atom and Molecular Physics and Optics
Language
English
ISSN
2052-2525
Abstract
Serial and time-resolved macromolecular crystallography are on the rise. However, beam time at X-ray free-electron lasers is limited and most thirdgeneration synchrotron-based macromolecular crystallography beamlines do not offer the necessary infrastructure yet. Here, a new setup is demonstrated, based on the JUNGFRAU detector and Jungfraujoch data-acquisition system, that enables collection of kilohertz serial crystallography data at fourthgeneration synchrotrons. More importantly, it is shown that this setup is capable of collecting multiple-time-point time-resolved protein dynamics at kilohertz rates, allowing the probing of microsecond to second dynamics at synchrotrons in a fraction of the time needed previously. A high-quality complete X-ray dataset was obtained within 1 min from lysozyme microcrystals, and the dynamics of the light-driven sodium-pump membrane protein KR2 with a time resolution of 1 ms could be demonstrated. To make the setup more accessible for researchers, downstream data handling and analysis will be automated to allow on-the-fly spot finding and indexing, as well as data processing.