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Title: Challenges and solutions for the analysis of in situ , in crystallo micro-spectrophotometric data

Journal Article · · Acta Crystallographica. Section D: Biological Crystallography (Online)
 [1];  [2];  [3];  [4]
  1. Paul Scherrer Inst. (PSI), Villigen (Switzerland). Swiss Light Source
  2. Univ. of Essex, Colchester (United Kingdom)
  3. European Molecular Biology Lab. (EMBL), Hamburg (Germany)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States). Photon Sciences Directorate

Combining macromolecular crystallography with in crystallo micro-spectrophotometry yields valuable complementary information on the sample, including the redox states of metal cofactors, the identification of bound ligands and the onset and strength of undesired photochemistry, also known as radiation damage. However, the analysis and processing of the resulting data differs significantly from the approaches used for solution spectrophotometric data. The varying size and shape of the sample, together with the suboptimal sample environment, the lack of proper reference signals and the general influence of the X-ray beam on the sample have to be considered and carefully corrected for. In the present article, we discuss how to characterize and treat these sample-dependent artefacts in a reproducible manner and we demonstrate the SLS-APE in situ, in crystallo optical spectroscopy data-analysis toolbox.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC00112704; 20111166; 2370
OSTI ID:
1228946
Report Number(s):
BNL-111021-2015-JA; ABCRE6
Journal Information:
Acta Crystallographica. Section D: Biological Crystallography (Online), Vol. 71, Issue 1; ISSN 1399-0047
Publisher:
International Union of CrystallographyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

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