On 7/24/13 7:47 AM, Poojari, Chetan wrote:
Dear All,

I want to calculate interaction energy per residue.

Below is the command i used:

g_enemat -f strand.edr -groups groups.dat -emat strand_emat.xpm


my groups.dat file contains these lines:

3
strand1_SER_34
strand1_THR_36
strand1_TYR_37


When i execute the above g_enemat command i get the below error message:

WARNING! could not find group LJ-SR:strand1_SER_34 -strand1_THR_36  (34,36)in 
energy file
WARNING! could not find group Coul-SR:strand1_SER_34 -strand1_TYR_37  (34,37)in 
energy file


My strand.edr file looks like this:

LJ-SR:strand1_SER_34-strand1_THR_36
Coul-SR:strand1_SER_34-strand1_TYR_37



Please can I get some suggestions on how to get around this problem.


I think g_enemat is buggy. People post the same issue or slight variants of it all the time. My version 4.6 installation fares even worse, as group names aren't even recognized (set to 'null' for everything).

You can get interaction energies over time using g_energy, but I don't think g_enemat currently functions properly.

-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

jalem...@outerbanks.umaryland.edu | (410) 706-7441

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