Journal Article PUBDB-2016-04849

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A data set from flash X-ray imaging of carboxysomes

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2016
Nature Publ. Group London

Scientific data 3, 160061 () [10.1038/sdata.2016.61]
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Abstract: Ultra-intense femtosecond X-ray pulses from X-ray lasers permit structural studies on single particles and biomolecules without crystals. We present a large data set on inherently heterogeneous, polyhedral carboxysome particles. Carboxysomes are cell organelles that vary in size and facilitate up to 40% of Earth’s carbon fixation by cyanobacteria and certain proteobacteria. Variation in size hinders crystallization. Carboxysomes appear icosahedral in the electron microscope. A protein shell encapsulates a large number of Rubisco molecules in paracrystalline arrays inside the organelle. We used carboxysomes with a mean diameter of 115±26 nm from Halothiobacillus neapolitanus. A new aerosol sample-injector allowed us to record 70,000 low-noise diffraction patterns in 12 min. Every diffraction pattern is a unique structure measurement and high-throughput imaging allows sampling the space of structural variability. The different structures can be separated and phased directly from the diffraction data and open a way for accurate, high-throughput studies on structures and structural heterogeneity in biology and elsewhere.

Classification:

Contributing Institute(s):
  1. Strukturdynamik Chemischer Systeme (FS-SCS)
  2. beauftragt von FS-CFEL-1 (ASU)
  3. CFEL-Coherent X-Ray Imaging (FS-CFEL-1)
  4. European XFEL (Eur.XFEL)
Research Program(s):
  1. 6215 - Soft Matter, Health and Life Sciences (POF3-621) (POF3-621)
Experiment(s):
  1. Measurement at external facility

Appears in the scientific report 2016
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Medline ; Creative Commons Attribution CC BY 4.0 ; DOAJ ; OpenAccess ; DOAJ Seal ; NCBI Molecular Biology Database
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 Record created 2016-11-10, last modified 2025-07-17


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