On 2/2/14, 11:29 AM, Xu Dong Huang wrote:
Dear all,

I am unclear about the bond exclusion properties within gromacs. Using a 
martini model system, what is the default behavior of setting
[moleculetype]
;name   exclusions
eth      1

exclusions to 1? How do I find out what kind of interaction it is excluding? I 
am interested in finding out if this is excluding 1-3 interaction or 1-4 
interaction. I guess what I also want to know is if my settings are including 
1-4 bonded interactions or using only 1-3.


The value of nrexcl is the number of bonded neighbors that are excluded from nonbonded interactions. With nrexcl = 1, only 1-2 interactions are excluded; 1-3 and 1-4 interactions are calculated as normal nonbonded interactions.

-Justin

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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

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

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