[gmx-users] fix COM

[Justin Lemkul]

On 2/20/16 10:44 PM, Ming Tang wrote:
> Dear Gromacs experts,
>
> Is there a approach to fix the centre of mass of a group of atoms only without fixing all of the atoms during a stretching process?
>

No, but you can approximate such behavior using a flat-bottom position restraint 
on judiciously chosen atoms.

-Justin

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Justin A. Lemkul, Ph.D.
Ruth L. Kirschstein NRSA Postdoctoral Fellow

Department of Pharmaceutical Sciences
School of Pharmacy
Health Sciences Facility II, Room 629
University of Maryland, Baltimore
20 Penn St.
Baltimore, MD 21201

jalemkul at outerbanks.umaryland.edu | (410) 706-7441
http://mackerell.umaryland.edu/~jalemkul

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