On Wednesday 05 May 2010 12:49:34 am Jon Wright wrote: > > I've been curious about this unit cell constant mis-matching for a > while. If I understood well, Perutz tried to exploit the effect for > phasing prior to heavy atom methods. As the unit cell changes, the > diffraction peaks move, intensities change, and the fourier transform of > the molecule is sampled in between the Bragg peaks. Has anyone tried to > persue the idea since then?
Acta Cryst. (2000). A56, 596-605 [ doi:10.1107/S010876730001031X ] On possible extensions of X-ray crystallography through diffraction-pattern oversampling J. Miao and D. Sayre Acta Cryst. (2000). D56, 1312-1315 [ doi:10.1107/S0907444900008970 ] The oversampling phasing method J. Miao, J. Kirz and D. Sayre Acta Cryst. (2003). A59, 577-583 [ doi:10.1107/S0108767303021123 ] Phase extension in crystallography using the iterative Fienup-Gerchberg-Saxton algorithm and Hilbert transforms J. S. Wu and J. C. H. Spence > Cheers, > > Jon > > See, eg, Bragg & Perutz, Proc. R. Soc. Lond. A 22 July 1952 vol. 213 no. > 1115 425-435. doi: 10.1098/rspa.1952.0136 > -- Ethan A Merritt Biomolecular Structure Center, K-428 Health Sciences Bldg University of Washington, Seattle 98195-7742
