[gmx-users] CGMD fixing PBC effect

2018-08-12 Thread Nikhil Maroli
Dear experts, I have a Coarse-grained simulation system where a dimer peptide is situated on the surface of the lipid bilayer. Can anyone help me to solve the PBC effect, I have tried with pbc mol, cluster and centring. Here is the link for 200 frames and starting configuration. Thanks in

Re: [gmx-users] RDF calculations for certain atoms in a polymer

2018-08-12 Thread Dallas Warren
Make the selection based on the atomtype and resname Catch ya, Dr. Dallas Warren Drug Delivery, Disposition and Dynamics Monash Institute of Pharmaceutical Sciences, Monash University 381 Royal Parade, Parkville VIC 3052 dallas.war...@monash.edu - When the only

Re: [gmx-users] refcoord-scaling=com

2018-08-12 Thread Mark Abraham
Hi, As you see in the docs http://manual.gromacs.org/documentation/current/user-guide/mdp-options.html#mdp-refcoord-scaling there are different reference coordinates chosen on your two fragments. The 2018 series of GROMACS prompts you to choose what those coordinates are with grompp -r, which

Re: [gmx-users] Protein-Ligand in bilayer

2018-08-12 Thread RAHUL SURESH
Hi Dr. Mark I have already posted in the respective forum. I am just looking for some alternative method or to know if I am doing it wrong.! But anyway I overcame this error. After docking, add respective hydrogens and save it as mol2 file. Make it as complex with protein and save as PDB. These

[gmx-users] refcoord-scaling=com

2018-08-12 Thread kai . exner
Dear Gromacs Users, I'm performing MD simulations (NPT) with position restraints for part of the system, thereby using the refcoord-scaling=com option in the mdp-file. After the MD run has finished and I'm restarting the MD by taking the last frame and simply extending the simulation time,

Re: [gmx-users] Simulations with SWM4-DP water model in non PBC

2018-08-12 Thread David van der Spoel
Den 2018-08-11 kl. 16:33, skrev Chi Yuen Pak: Dear GROMACS users, I would like to ask a question concerning about the simulation of a water droplet, with SWM4-DP polarizable water model in nonperiodic boundary conditions. The GROMACS version I use is 2018.2. I have been only able to