Dear Sir, I am using Gromacs 3.3.2 version for molecular dynamics simulation of my protein-ligand complex. I want to calculate the free energy of binding through LIE method. While extracting the LJ and coulombic energy values using g_energy command,there are many options like LJ-14, LJ-SR, LJ-LR, Coul-14, Coul-SR, Coul-recip etc. I am unable to decide which values should I use for free energy calculation .Which of the following options should I consider. 1. Should I use only LJ-SR and coul-SR? 2. Should I use the total energy values i.e LJ-SR+LJ-LR?
Your's sincerely Devawati Dutta
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