On Aug 13, 2010, at 10:00 AM, Anirban Ghosh wrote:

Hi ALL,

I am trying to simulate a protein inserted in a lipid bilayer with water and ions, the entire system built using CG (coarse grain). I am using the Martini force field to the CGMD simulation. My question is that should I use the "centre of mass removal" component in my .mdp file (which we do for an all-atom protein + lipid simulation)? Should I use the below given parameters in my mdp file for this CGMD simulation:

-------------------------------------------------------------------------------------------------
; COM motion removal
; These options remove motion of the protein/bilayer relative to the solvent/ions
nstcomm         = 1
comm-mode       = Linear
comm-grps       = Protein_DSPC W
-------------------------------------------------------------------------------------------------
This is the way to go :))

Any suggestion is welcome. Thanks a lot in advance.


Regards,

Anirban
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