RE: About PDB file with fixed atom flags.

From: Hidekazu WATANABE (evergreen_tow_at_yahoo.co.jp)
Date: Thu May 05 2005 - 12:36:21 CDT

>The only thing you need is to fix some atoms, right? You can do it
using
>VMD and is really straightforward to do it. In the command line, after
>you load your molecule, type the following:

Thank you very much for the answer.

The character "X" is added as the fifth item in the line
which is seemd to contain the fixed atom. (Is it right?)
========
ATOM 1 C ALA X 3 -1.152 1.490 -3.770 1.00 0.00
ALAN
ATOM 2 OT1 ALA X 3 -1.019 0.921 -2.959 1.00 0.00
ALAN
ATOM 3 OT2 ALA X 3 -1.855 1.795 -4.412 1.00 0.00
ALAN
========

Is the description about the fixed atoms in the configure file
for NAMD program followings?
(The file name with the character "X" is "solv_fix.pdb"
under the directory "ala/output/".)
========
fixedAtoms on
fixedAtomsFile ala/output/solv_fix.pdb
fixedAtomsCol X
========

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