restraining residues in NAMD

From: Haydee Valdes (
Date: Wed Sep 28 2011 - 10:59:20 CDT

Good afternoon,
my problem is very simple. I have a pdb file containing a solvated protein.

I would like to fix the atoms/residues of the protein and simply
adjust the waters around it.
I havenĀ“t found an easy way to do that in NAMD though.

Is there a way to specify the following: fix from atom/residue X to
atom/residue Y and move everything else?



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