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High resolution neutron crystallographic studies of the hydration of coenzyme cob(II)alamin

Journal Article · · Acta Crystallographica. Section D. Structural Biology
 [1];  [2];  [3];  [4];  [4];  [4];  [2];  [5];  [2]
  1. Brown University
  2. ORNL
  3. Institut Laue-Langevin (ILL)
  4. Los Alamos National Laboratory (LANL)
  5. Institute of Biosciences, University of Graz

The hydration of coenzyme cob(II)alamin has been studied using high resolution monochromatic neutron crystallographic data collected at room temperature to a resolution of surrounded by flexible side chains with terminal functional groups may be significant for 0.92 on the original diffractometer D19 with a prototype 4o x 64o detector at the high-flux reactor neutron source run by the Institute Laue Langevin. The resulting structure provides H bonding parameters for the hydration of biomacromolecules to unprecedented accuracy. These experimental parameters will be used to define more accurate force-fields for biomacromolecular structure refinement. The presence of a hydrophobic bowl motif efficient scavenging of ligands. The feasibility of extending the resolution of this structure to ultra high resolution was investigated by collecting time-of-flight neutron crystallographic data on diffractometer TOPAZ with a prototype array of 14 modular 21o x 21o detectors at the Spallation Neutron Source run by Oak Ridge National Laboratory.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
SC USDOE - Office of Science (SC)
DOE Contract Number:
AC05-00OR22725
OSTI ID:
1081747
Journal Information:
Acta Crystallographica. Section D. Structural Biology, Journal Name: Acta Crystallographica. Section D. Structural Biology Vol. 67; ISSN 2059-7983
Publisher:
IUCr
Country of Publication:
United States
Language:
English

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