[gmx-users] genion: can you place the ions at one location in the box?

[Smiruthi Ramasubramanian]

I am simulating an ion channel and require help placing a concentration of
ions at one side of the box (below the membrane).

SETUP: membrane + embedded protein in the center of the cube.

I tried to generate a smaller cube (of the required volume below the cube),
solvate, add ions and then *cat* with the *.gro file of my system before
solvating. But when I solvate the system with ions, the ions are removed.

Any suggestions as to how to handle this problem?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://maillist.sys.kth.se/pipermail/gromacs.org_gmx-users/attachments/20100325/f5afcfcd/attachment.html>