[gmx-users] Recreating newer TPRs for old Gromacs (Jernej Zidar)

2019-09-26 Thread ABEL Stephane
Hello If you only need the parameters of the molecules (e.g. list of bond, atom masses and charges) you could build a fake tpr with a minimal list of parameters (for instance used for minimization) and use an the desired old version of grompp (Gromacs 5.0.3). Stéphane

Re: [gmx-users] Problem with adding New peptide Terminus

2019-09-26 Thread Justin Lemkul
On 9/26/19 10:26 AM, Neena Susan Eappen wrote: Hi Justin, This is the actual error message, Residue 3 named ALA of a molecule in the input file was mapped to an entry in the topology database, but the atom C used in that entry is not found in the input file. Perhaps your atom and/or

Re: [gmx-users] Problem with adding New peptide Terminus

2019-09-26 Thread Neena Susan Eappen
Hi Justin, This is the actual error message, Residue 3 named ALA of a molecule in the input file was mapped to an entry in the topology database, but the atom C used in that entry is not found in the input file. Perhaps your atom and/or residue naming needs to be fixed. I was trying to add a

Re: [gmx-users] ion flux counter

2019-09-26 Thread Kutzner, Carsten
> Am 26.09.2019 um 16:24 schrieb Harutyun Sahakyan : > > Dear Gromacs users, > > Computational electrophysiology protocol has some analyzing tools allowing > to count ion flux etc. I have used an external electric field to simulate > the process of ion permissions through a membrane channel.

[gmx-users] Alchemical Transformation PosRes State B

2019-09-26 Thread Johannes Hermann
Dear all, I am doing alchemical transformation free energy calculation. Grompp offers the option to provide a position restrain file for state B via -rb flag. Can I use this for free energy calculations if I want to restrain the coordinates in state B to different positions? If yes, does

[gmx-users] Fwd: ion flux counter

2019-09-26 Thread Harutyun Sahakyan
Dear Gromacs users, Computational electrophysiology protocol has some analyzing tools allowing to count ion flux etc. I have used an external electric field to simulate the process of ion permissions through a membrane channel. How can I count ion flux, conductivity or something like that? Best

Re: [gmx-users] ion flux counter

2019-09-26 Thread Harutyun Sahakyan
Hi Carsten, Thank you for replying, Is it possible to set CompEL for a non-double channel system? Without rising ions disbalance, just for counting. I could use a piece of CompEL code to modify it for ion flux counting, maybe you have any suggestions? Harut On Thu, Sep 26, 2019 at 6:36 PM