On 2/10/14, 12:12 PM, Archana Sonawani-Jagtap wrote:
Hello,

I am trying to perform peptide simulation using TFE-water system. I did lot
of literature search and according carried out NVT for 32ns followed by NPT
10ns simulation for TFE-water system.

I found that the TFE get accumulated in the center of the box and water
molecules surround them. The system is no more homogeneous.

Is this normal or something is going wrong? Any help regarding this is
appreciated.


It sounds to me like either the force field parameters are bad (i.e. the TFE is too hydrophobic and just aggregates) or there could be problems with the .mdp file. Without more information, there's nothing definitive to suggest.

-Justin

--
==================================================

Justin A. Lemkul, Ph.D.
Postdoctoral Fellow

Department of Pharmaceutical Sciences
School of Pharmacy
Health Sciences Facility II, Room 601
University of Maryland, Baltimore
20 Penn St.
Baltimore, MD 21201

[email protected] | (410) 706-7441
http://mackerell.umaryland.edu/~jalemkul

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