[gmx-users] Replacing a residue and continuing a simulation run

2011-03-15 Thread J. Nathan Scott
Hello all, I was wondering, is it possible to replace a residue and then continue a simulation using the new parameters/geometry of the new residue? The reason I ask is that I am interested in performing simulations of proteins with tryptophan in its excited state following a lengthy

Re: [gmx-users] Replacing a residue and continuing a simulation run

2011-03-15 Thread Justin A. Lemkul
J. Nathan Scott wrote: Hello all, I was wondering, is it possible to replace a residue and then continue a simulation using the new parameters/geometry of the new residue? The reason I ask is that I am interested in performing simulations of proteins with tryptophan in its excited state

Re: [gmx-users] Replacing a residue and continuing a simulation run

2011-03-15 Thread Tsjerk Wassenaar
Hi :) I'd say that if the changes are small you should be able to get away with it. You might want to start off the second part of the run with a smaller time step to relax, though. If the change is from TRP to TRP*, you only need to have a modified topology, without touching the coordinates. You