Re: [gmx-users] free energy calculation and constraint distance?

2007-07-16 Thread bmmothan
Hello, What I want to do is calculate the free energy difference of pulling the ligand away from the receptor. I want to do it using theromdynamic intergration using the Lamda 0/1 stuff. I am just not clear of the procedure of how to do it. I want to constraint several distances between the ligan

Re: [gmx-users] free energy calculation and constraint distance?

2007-07-16 Thread Maik Goette
Sorry, I really didn't get, what your goal is and what, in fact, you really want to do. For free energy calculations, you can - either do Thermodynamic integration (the lambda 0/1 stuff) - or pulling (force probe) and afterwards use Jarzynskis theorem - or umbrella sampling together with WHAM (i

[gmx-users] free energy calculation and constraint distance?

2007-07-13 Thread bmmothan
Hello Gromacs users, I am trying to do a free energy calculation, which I have never done before. I have read the manual and the tutorial on the wiki but there is still some issues not clear to me. I am trying to calculate free energy difference of pulling the ligand from a beta-sheet receptor. I