Dear Gunnar,
The direx executable is located in usr/local/direx-0.4 and I added direx-0.4 to $PATH in .bashrc. I start it by typing direx.
I will try what you proposed.
Thank you for staying in touch.
Katya

<t><br/> Dear Gunnar,<br/> <br/> Unfortunately, I was not able to solve a problem. I tried with a pdb file as you proposed and I have the error again:<br/> <br/> bash-3.2# direx -pdb 2RA1-model-coot-0.pdb -op out <br/> DireX v0.4<br/> Rev 113 Build 2010-01-06 on Darwin 8.11.1 i386<br/> <br/> (C) Cop...

<t>Hello,<br/> Here is a command I used:<br/> bash-3.2# direx -pdb 2RA1-model-coot-0.pdb -f all.par -map B4.mrc -op out <br/> <br/> And reply:<br/> <br/> DireX v0.4<br/> Rev 113 Build 2010-01-06 on Darwin 8.11.1 i386<br/> <br/> (C) Copyright 2006-2009 Gunnar F. Schroeder <br/> All Rights Reserved<br...

Hello,
Thank you for your help.
Yes, the file is in the right directory. I have also a pdb file in the same directory and Direx found it.

Dear Gunnar,
Thank you for the quick response. Direx writes ERROR: Cannot open file B4.mrc !
I tried the command which you proposed but I got the same error. I generated a map using Chimera and again I have this error. I am using Direx on Mac osx 10.6.

<t>Hello,<br/> I am trying to fit a crystal structure into the density map obtained from SAXS. I used Situs package to create a volumetric map in situs format (by default) then I converted this map into mrc and xplor format using map2map from Situs package. The Direx cannot open these mrc and xplor ...