The macromolecular crystallography beamline I911-3, part of the Cassiopeia/I911 suite of beamlines, is based on a superconducting wiggler at the MAX II ring of the MAX IV Laboratory in Lund, Sweden. The beamline is energy-tunable within a range between 6 and 18 keV. I911-3 opened for users in 2005. In 2010-2011 the experimental station was completely rebuilt and refurbished such that it has become a state-of-the-art experimental station with better possibilities for rapid throughput, crystal screening and work with smaller samples. This paper describes the complete I911-3 beamline and how it is embedded in the Cassiopeia suite of beamlines.
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http://dx.doi.org/10.1107/S0909049513011734 | DOI Listing |
IUCrJ
January 2025
Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.
We report the use of streaming data interfaces to perform fully online data processing for serial crystallography experiments, without storing intermediate data on disk. The system produces Bragg reflection intensity measurements suitable for scaling and merging, with a latency of less than 1 s per frame. Our system uses the CrystFEL software in combination with the ASAP::O data framework.
View Article and Find Full Text PDFJ Synchrotron Radiat
January 2025
Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, People's Republic of China.
Shanghai Synchrotron Radiation Facility (SSRF) is a third-generation 3.5 GeV synchrotron facility located on the Chinese mainland, operational for user applications since 2009. With the completion of its Phase II project this year, SSRF now supports over 40 experimental stations across various research fields.
View Article and Find Full Text PDFMicrobiol Spectr
December 2024
Department of Chemistry, Barnard College, Columbia University, New York, New York, USA.
(Mabs) is commonly found in the cystic fibrosis (CF) lung. During infection, Mabs can form biofilms in the lung which reduce both the ability of the immune response to clear infection and the effectiveness of antibiotic therapy. In the CF lung, heme and hemoglobin levels are increased and may provide both iron and heme to Mabs cells.
View Article and Find Full Text PDFJ Inorg Biochem
December 2024
Department of Molecular and Analytical Chemistry, Interdisciplinary Excellence Centre, University of Szeged, Dóm tér 7-8, H-6720 Szeged, Hungary. Electronic address:
Schiff bases derived from aminoguanidine are extensively investigated for their structural versatility. The tridentate 2-formylpyridine guanylhydrazones act as analogues of 2-formyl or 2-acetylpyridine thiosemicarbazones, where the thioamide unit is replaced by the guanidyl group. Six derivatives of 2-formylpyridine guanylhydrazone were synthesized and their proton dissociation and complex formation processes with Cu(II), Fe(II) and Fe(III) ions were studied using pH-potentiometry, UV-visible, NMR and electron paramagnetic resonance spectroscopic methods.
View Article and Find Full Text PDFAnal Chem
December 2024
School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States.
Serial macromolecular X-ray crystallography plays an important role in elucidating protein structures and consequently progressing the field of targeted therapeutics. The use of pulsed beams at different repetition frequencies requires the development of various sample-conserving injection strategies to minimize sample wastage between X-ray exposures. Fixed-target sample delivery methods that use solid support to hold the crystals in the X-ray beam path are gaining interest as a sample-conserving delivery system for X-ray crystallography with high crystal hit rates.
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