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The synchrotron Laue technique has been applied to high-resolution structure refinement of the ribotoxin, restrictocin [Yang & Moffat (1996). Structure, 4, 837-852]. By employing carefully designed data-collection strategies and the data-reduction algorithms incorporated in the software system LaueView [Ren & Moffat (1995a). J. Appl. Cryst. 28, 461-481; Ren & Moffat (1995b). J. Appl. Cryst. 28, 482-493], a set of high-resolution Laue data with a completeness and accuracy comparable to excellent monochromatic data was obtained. Through detailed comparison with the monochromatic data and electron-density maps derived from the Laue data, optimum data-collection and reduction strategies were identified and the application of Laue diffraction techniques to conventional crystallographic refinement was demonstrated.

Supporting information

PDB reference: Restrictocin, 1aqz

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