Re: [gmx-users] Electrostatic interaction energy

2012-06-08 Thread Justin A. Lemkul
On 6/8/12 11:04 AM, Turgay Cakmak wrote: Hi all, I have 2 questions related to the electrostatic energy of the system.. 1) Is *total electrostatic energy* equal to *Coulomb-(SR)* + *Coul.-recip*. OR *Coulomb-14* + *Coulomb-(SR)* + *Coul.-recip*. I am so confused. The total electrostatic en

[gmx-users] Electrostatic interaction energy

2012-06-08 Thread Turgay Cakmak
Hi all, I have 2 questions related to the electrostatic energy of the system.. 1) Is *total electrostatic energy* equal to *Coulomb-(SR)* + *Coul.-recip*. OR *Coulomb-14* + *Coulomb-(SR)* + *Coul.-recip*. I am so confused. I specified in my .mdp file; coulombtype = PME rvdw = 1.0 rlist = 1.0 rco

Re: [gmx-users] electrostatic interaction

2010-11-16 Thread Mark Abraham
On 17/11/2010 12:24 AM, nishap.pa...@utoronto.ca wrote: Hello, It doesn't contribute as such. I was using a different force field before OPLSAA and it was all atom so I could make the charges zero in the topology file, I wanted to do the same. Being all-atom or not has nothing to do with

Re: [gmx-users] electrostatic interaction

2010-11-16 Thread nishap . patel
Hello, It doesn't contribute as such. I was using a different force field before OPLSAA and it was all atom so I could make the charges zero in the topology file, I wanted to do the same. Quoting "Justin A. Lemkul" : Mark Abraham wrote: On 16/11/2010 7:14 AM, nishap.pa...@utoronto.

Re: [gmx-users] electrostatic interaction

2010-11-15 Thread Justin A. Lemkul
Mark Abraham wrote: On 16/11/2010 7:14 AM, nishap.pa...@utoronto.ca wrote: Hello, I want to turn off electrostatic interactions between CH4 and SOL in my system. I am using ffG53a6 forcefield for CH4 and spc for my water model. CH4 is an united atom and so I can't make the charges zero

Re: [gmx-users] electrostatic interaction

2010-11-15 Thread Mark Abraham
On 16/11/2010 7:14 AM, nishap.pa...@utoronto.ca wrote: Hello, I want to turn off electrostatic interactions between CH4 and SOL in my system. I am using ffG53a6 forcefield for CH4 and spc for my water model. CH4 is an united atom and so I can't make the charges zero in the topology. Is the

[gmx-users] electrostatic interaction

2010-11-15 Thread nishap . patel
Hello, I want to turn off electrostatic interactions between CH4 and SOL in my system. I am using ffG53a6 forcefield for CH4 and spc for my water model. CH4 is an united atom and so I can't make the charges zero in the topology. Is there any other way I can turn off electrostatic inter

Re: [gmx-users] Electrostatic interaction Vs Z axis

2010-08-19 Thread Justin A. Lemkul
Several messages that I sent yesterday look like they never made it to the list, for some reason. Sorry if this is a double-post, just trying to get the reply out there... Aswathy wrote: Dear Gromacs users, I want to find the electrostatic interaction energy between ligand and protein, wa

[gmx-users] Electrostatic interaction Vs Z axis

2010-08-18 Thread Aswathy
Dear Gromacs users, I want to find the electrostatic interaction energy between ligand and protein, water and ligand during SMD of the ligand through the channel. I have used g_energy but, I need to plot the energy against Z axis of the channel. Could you please help me. Thanks in advance, -- A