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Martin-Garcia, Jose M; Zhu, Lan; Mendez, Derek; Lee, Ming-Yue; Chun, Eugene; Li, Chufeng; Hu, Hao; Subramanian, Ganesh; Kissick, David; Ogata, Craig; Henning, Robert; Ishchenko, Andrii; Dobson, Zachary; Zhang, Shangji; Weierstall, Uwe; Spence, John C H; Fromme, Petra; Zatsepin, Nadia A; Fischetti, Robert F; Cherezov, Vadim; Liu, Wei
IUCrJ, 05/2019, Letnik: 6, Številka: Pt 3Journal Article
Since the first successful serial crystallography (SX) experiment at a synchrotron radiation source, the popularity of this approach has continued to grow showing that third-generation synchrotrons can be viable alternatives to scarce X-ray free-electron laser sources. Synchrotron radiation flux may be increased ∼100 times by a moderate increase in the bandwidth ('pink beam' conditions) at some cost to data analysis complexity. Here, we report the first high-viscosity injector-based pink-beam SX experiments. The structures of proteinase K (PK) and A adenosine receptor (A AR) were determined to resolutions of 1.8 and 4.2 Å using 4 and 24 consecutive 100 ps X-ray pulse exposures, respectively. Strong PK data were processed using existing Laue approaches, while weaker A AR data required an alternative data-processing strategy. This demonstration of the feasibility presents new opportunities for time-resolved experiments with microcrystals to study structural changes in real time at pink-beam synchrotron beamlines worldwide.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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