Hi Daniel, you can find an example here: Acta Cryst. (2008). D64, 515-524 Iterative-build OMIT maps: map improvement by iterative model building and refinement without model bias. T. C. Terwilliger, R. W. Grosse-Kunstleve, P. V. Afonine, N. W. Moriarty, P. D. Adams, R. J. Read, P. H. Zwart and L.-W. Hung Pavel. On 1/7/10 7:35 AM, himmel wrote: > Dear All, > Happy new year! > > I would like to do a test of how some software detects and > removes model bias from an electron density map. > > To that end, I am looking for a data set and unrefined > (or partially refined) structure that exhibits very obvious > model bias in the electron density. I would also need the fully > refined structure (preferably published) as an > approximation of the "correct" coordinates, in which the > model bias no longer shows up. > > Would anyone be able to provide these for me? > I would be grateful. > > -Daniel