Portal de Periódicos da CAPES

Diverse application platform for hard X-ray diffraction in SACLA (DAPHNIS): application to serial protein crystallography using an X-ray free-electron laser

2015; Wiley; Volume: 22; Issue: 3 Linguagem: Inglês

10.1107/s1600577515004464

1600-5775

Kensuke Tono, Eriko Nango, Michihiro Sugahara, Changyong Song, Jaehyun Park, Tomoyuki Tanaka, Rie Tanaka, Yasumasa Joti, Takashi Kameshima, Shun Ono, Takaki Hatsui, Eiichi Mizohata, Mamoru Suzuki, Tatsuro Shimamura, Yoshiki Tanaka, So Iwata, Makina Yabashi,

Advanced Electron Microscopy Techniques and Applications

An experimental system for serial femtosecond crystallography using an X-ray free-electron laser (XFEL) has been developed. It basically consists of a sample chamber, fluid injectors and a two-dimensional detector. The chamber and the injectors are operated under helium atmosphere at 1 atm. The ambient pressure operation facilitates applications to fluid samples. Three kinds of injectors are employed to feed randomly oriented crystals in aqueous solution or highly viscous fluid. Experiments on lysozyme crystals were performed by using the 10 keV XFEL of the SPring-8 Angstrom Compact free-electron LAser (SACLA). The structure of model protein lysozyme from 1 µm crystals at a resolution of 2.4 Å was obtained.