ArticleJournal of synchrotron radiation2016
A nearly on-axis spectroscopic system for simultaneously measuring UV-visible absorption and X-ray diffraction in the SPring-8 structural genomics beamline.
Article in Journal of synchrotron radiation, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Review
- From femtoseconds to minutes: time-resolved macromolecular crystallography at XFELs and synchrotrons.Acta crystallographica. Section D, Structural biology · 2024Article
- Combining on-line spectroscopy with synchrotron and X-ray free electron laser crystallography.Current opinion in structural biology · 2023Review
- A nanosecond time-resolved XFEL analysis of structural changes associated with CO release from cytochrome c oxidase.Science advances · 2017Article
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Authors and funding
14 authors.
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Abstract
UV-visible absorption spectroscopy is useful for probing the electronic and structural changes of protein active sites, and thus the on-line combination of X-ray diffraction and spectroscopic analysis is increasingly being applied. Herein, a novel absorption spectrometer was developed at SPring-8 BL26B2 with a nearly on-axis geometry between the X-ray and optical axes. A small prism mirror was placed near the X-ray beamstop to pass the light only 2° off the X-ray beam, enabling spectroscopic analysis of the X-ray-exposed volume of a crystal during X-ray diffraction data collection. The spectrometer was applied to NO reductase, a heme enzyme that catalyzes NO reduction to N2O. Radiation damage to the heme was monitored in real time during X-ray irradiation by evaluating the absorption spectral changes. Moreover, NO binding to the heme was probed via caged NO photolysis with UV light, demonstrating the extended capability of the spectrometer for intermediate analysis.
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