Re: [gmx-users] Constrains and TI

2007-08-09 Thread Maik Goette
That sounds more reasonable...:) In fact I like the idea of using distance restraints, but I still doubt, that will work... I would really suggest to use the TI method. If you apply it properly it should give reasonable results. With proper application, speaking about using soft-core for VdW

Re: [gmx-users] Constrains and TI

2007-08-08 Thread bmmothan
Thank you for the reply, Sorry for the confusion of my two emails. I guess I was using the word "pulling" in the wrong context. Now after my extensive reading, what I meant is that i want to calculate the absoulte binding free energy of a ligand/receptor complex. I have read the manual over and

Re: [gmx-users] Constrains and TI

2007-08-08 Thread Maik Goette
Hi First, for the other topic you posted (which is probably somehow related to this one): Now, please be more specific with what you want to doYou wrote: "What I want to do is calculate the free energy difference of pulling the ligand away from the receptor" This is a pulling approach,

[gmx-users] Constrains and TI

2007-07-17 Thread bmmothan
hello all, is it possible to constrain a distance (or several) between a ligand-receptor complex inorder to simulate free energy change of separating the ligand from the receptor? I intend to use TI and lamda to do free energy calculations. any help is appreicated. Belquis __