Hi Leila, it was 10 years ago when I looked at the maps this way, and at that time I used the program called CAN to do this (see below). It worked really well. If you are lucky it might still be available by request from the authors.
Pavel. 1. Vernoslova, E.A., Lunin, V.Yu. (1993) "The FROG PC series : programs for electorn-density and model investigations for proteins". *J.Appl. Cryst.,* 26, 291-294 The program allow to visualise different 3D or 2D distributions (maps), periodic or not. The program allows also to superpose 2 distributions and superpose them with an atomic model. The second map can be translated relatively to the first one. An atomic model can be moved as a rigid body. The maps are represented by a set of equipotential levels. 3D maps can be represented either section by section or as a set of superposed sections. A number of options is available to visualise and to analyse the maps. A special black/which option is provided to produce better quality pictures. The program accept several input formats but specially tuned to the ones linked to the corresponding FFT program (Vernoslova and Lunin). The program is written in FORTRAN, runs under MS DOS and is available by request from the authors. On Mon, Jan 31, 2011 at 2:28 PM, Leila Foroughi <lforo...@gmail.com> wrote: > I'm currently trying to compare single crystal X-ray data for a protein > crystal with previously published electron miscroscopy data. I would really > like to be able to take my electron density map (from X-ray) and view it as > a 2D projection of 3D space (essentially a contour map). The attached is an > example of the type of electron density map I'm trying to mimic. Does anyone > have any suggestions on what software I could use to do this? > > Image Source: J Mol. Biol. (1975) 94, 425-440. > > Thanks, > Leila >
