Difference between revisions of "Cluster:Pymol"

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<p>Once you have run:<br>
 
<p>Once you have run:<br>
<tt>grompp -f file.mdp -p topol.top -o file.tpr</tt><br>
+
<tt>grompp -f run.mdp -p topol.top -o run.tpr</tt><br>
 
Which takes as parameters a run configuration mdp file and a system topology file, topol.top and outputs a tpr file.</p>
 
Which takes as parameters a run configuration mdp file and a system topology file, topol.top and outputs a tpr file.</p>
  
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<p>Run pymol on the created pdb file:<br>
 
<p>Run pymol on the created pdb file:<br>
<tt>pymol file.pdb</tt><br>
+
<tt>pymol run.pdb</tt><br>
 
Control pymol with the VCR buttons</p>
 
Control pymol with the VCR buttons</p>
  

Latest revision as of 14:32, 25 May 2005

Once you have run:
grompp -f run.mdp -p topol.top -o run.tpr
Which takes as parameters a run configuration mdp file and a system topology file, topol.top and outputs a tpr file.

And after running the simulation:
mdrun -deffnm run

Run the mdrun output through a lowpass filter to smooth out the transition of the atoms in the system between time steps:
g_filter -s run.tpr -f run.xtc -ol lowpass.xtc -nx 10 -all

Convert the gromacs trajectory file to a pdb file:
trjconv -s run.topr -f lowpass.xtc -o file.pdb
In order to view just the molecule being modeled select protein for the output group.

Run pymol on the created pdb file:
pymol run.pdb
Control pymol with the VCR buttons


Adapted from Erik Lindahl's Paralellel Molecular Dynamics: Gromacs, Cluster World Vol 2 No 8, 2004.