Hi I have a series of trajectories from a coarse grained simulation (Martini force field) that I ran using gromacs 4.0.4. The system consists of a protein embedded in a POPC bilayer solvated with water. During the simulation the protein (most of time its actually *part* of the protein) jumps across the pb into the neighboring box. I use a series of tcl scripts to analyse my trajectories and for that purpose I need to remove that "period boundary jump" and make the protein "whole" again.
I have tried the approach described on the gromacs website http://www.gromacs.org/Documentation/Terminology/Periodic_Boundary_Conditions I also other combinations of -whole, -center and -pbc nojump of trjconv, without any luck. Can anyone suggest how I can re-center the protein and remove the pb jump ie make the protein "whole" Thanks Evelyne -- Evelyne Deplazes PhD student Theoretical Chemistry group University of Western Australia
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