Room-temperature ultrahigh-resolution time-of-flight neutron and X-ray diffraction studies of H/D-exchanged crambin

  • Julian C.H. Chen
  • , Zoë Fisher
  • , Andrey Y. Kovalevsky
  • , Marat Mustyakimov
  • , B. Leif Hanson
  • , Vladimir V. Zhurov
  • , Paul Langan

    Research output: Contribution to journalArticlepeer-review

    11 Scopus citations

    Abstract

    The room-temperature (RT) X-ray structure of H/D-exchanged crambin is reported at 0.85 Å resolution. As one of the very few proteins refined with anisotropic atomic displacement parameters at two temperatures, the dynamics of atoms in the RT and 100 K structures are compared. Neutron diffraction data from an H/D-exchanged crambin crystal collected at the Protein Crystallo-graphy Station (PCS) showed diffraction beyond 1.1 Å resolution. This is the highest resolution neutron diffraction reported to date for a protein crystal and will reveal important details of the anisotropic motions of H and D atoms in protein structures.

    Original languageEnglish
    Pages (from-to)119-123
    Number of pages5
    JournalActa Crystallographica Section F: Structural Biology and Crystallization Communications
    Volume68
    Issue number2
    DOIs
    StatePublished - Feb 2012

    Keywords

    • H/D exchange
    • crambin
    • neutron diffraction
    • ultrahigh resolution

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