[gmx-users] Electric field or CompEl protocol?

2018-05-20 Thread alex rayevsky
If I find resources for several calculations (the last one continued for 20 days) I'll try both methods and will share You. It seems I should find another smaller test system and reproduce the approaches. Thank You Sun May 20 09:55:14 CEST 2018 -- I think CompEl

Re: [gmx-users] Electric field or CompEl protocol?

2018-05-20 Thread Alex
I think CompEl is described in the manual, the options for it are here: http://manual.gromacs.org/documentation/2018/user-guide/mdp-options.html I've never used it, so I can't suggest anything, but you can ask on this board for specific mdp examples. The way CompEl works is conceptually simple: i

Re: [gmx-users] Electric field or CompEl protocol?

2018-05-20 Thread alex rayevsky
Dear Alex! Yes, I thought about all Your reflections and I'm also not sure that CompEl is well parameterzied for a non-specialist like me and the electric field is more intuitive for me. However, when I saw the dimension 'V/nm' for the first time, I thought that something must depend on the length

Re: [gmx-users] Electric field or CompEl protocol?

2018-05-19 Thread Alex
It's more of a philosophical question in, unfortunately. I don't use CompEl, because I believe it is conceptually clunky, but that's a matter of opinion that could turn into discussion beyond the scope of your question. I don't study biomolecules, so I can get away with applying direct fields.

[gmx-users] Electric field or CompEl protocol?

2018-05-19 Thread alex rayevsky
Dear all, Which protocol, Electric field section or the CompEl, I should use in the situtation: 1. I built an ion channel by homology, prepared a bilayer membrane, embeded my protein and run a simulation to relax the system (100 ns) 2. my channel was closed all the time. 3. I want to run four para