[gmx-users] Ionization: Your solvent group size (76663) is not a multiple of 3

2019-09-16 Thread Mohammed I Sorour
Dear Gromacs users, I'm adding two different salts to my system in different concentrations; first salt addition is done successfully using the following commands: >gmx grompp -f em.mdp -c sys_solv.gro -p topol.top -o ions.tpr >gmx genion -s ions.tpr -o sys_solv_ions.gro -p topol.top -pname MG

Re: [gmx-users] Issues with energy minimization of a membrane protein

2019-09-16 Thread Peter Kroon
"Maximum force =inf on atom 3999" is the hint Gromacs gave you. This means that atom 3999 (and possibly more) have very bad overlaps. This is backed up by your LJ energy being very high. Use VMD (or something similar) to inspect that atom and it's surrounding. Peter On 16-09-19

[gmx-users] Issues with energy minimization of a membrane protein

2019-09-16 Thread Prasanth G, Research Scholar
Dear all, I am interested in carrying out a simulation of mPGES-1 protein (PDB id: 4yl3), which is a homotrimer. I am using POPC membrane; equilibrated for 100 ns for this purpose. I was able to align and insert the protein into the membrane using lambada align and inflategro programs,