Hi Rani, Chimera is not the right program to do something like this. Please see the discussion from earlier today, shown in these links: <http://plato.cgl.ucsf.edu/pipermail/chimera-users/2020-September/017228.html> <http://plato.cgl.ucsf.edu/pipermail/chimera-users/2020-September/017234.html> As mentioned in those posts, it is not appropriate for larger systems or when long simulations are needed. Also it does not have any options for guiding sampling along a path or for calculating free energies. Some other programs you might consider for running molecular dynamics calculations are given in those posts. That tutorial you mention is not about running any molecular dynamics simulation. It only gives an example of looking at molecular dynamics results that were saved from another program (AMBER) that actually did the calculations. Best, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco
On Sep 18, 2020, at 12:56 PM, Rani Wiswedel <wswran001@myuct.ac.za> wrote:
Good day, I am an honours student attempting to set up my first molecular dynamics simulation, and am having some trouble trying to understand how to set a pathway for a substrate through a pore in Chimera. I am very unsure of how to do this, and was wondering if you could provide some help. I tried following the Trajectory and Ensemble Analysis tutorial, but essentially cannot get past the first step of downloading leap.top etc. I am also not sure if this is the correct tutorial to follow for what I am looking to do? Any advice would be greatly appreciated, I am in way over my depth. Thank you Kind regards, Rani