[gmx-users] Re: Water molecules cannot be settled, why?

2012-07-13 Thread John Ladasky
Date: Wed, 11 Jul 2012 10:32:35 +0200 From: Tsjerk Wassenaar Subject: Re: [gmx-users] Re: Water molecules cannot be settled, why? To: Discussion list for GROMACS users Message-ID: Content-Type: text/plain; charset=UTF-8 > Hi John, Check where the unsettling water molecule is placed. > If it'

[gmx-users] Re: Water molecules cannot be settled, why?

2012-07-11 Thread John Ladasky
Hello, everyone, I am reviving a discussion I started about a month back. http://gromacs.5086.n6.nabble.com/Water-molecules-cannot-be-settled-why-tt4998059.html I thought that I would try to work around the problem by only proceeding with those simulations that didn't crash, but I've reached

[gmx-users] Water molecules cannot be settled, why?

2012-06-04 Thread John Ladasky
Recently I have started to get crash messages in my molecular dynamics runs which look like this: Reading file exp37b-prep.tpr, VERSION 4.5.4 (single precision) Making 1D domain decomposition 5 x 1 x 1 starting mdrun 'Protein in water' 50 steps, 1000.0 ps. step 81240: Water molecule start

[gmx-users] How to automate genion completely?

2012-03-24 Thread John Ladasky
I am starting to write my own turnkey scripts to automate GROMACS (v 4.5.4) work flow. Many of the GROMACS commands, such as pdb2gmx and genion, have interactive options by default, meaning that you manually enter information when the program runs. In the tutorials, we are taught to invoke pd

Re: [gmx-users] Trjconv PDB files define solvent as "ATOM"?

2012-03-19 Thread John Ladasky
Following up to myself: Looking back through the archives, I have learned that the issue of solvent atoms being exported from trjconv into PDB files as "ATOM" rather than as "HETATM" is an issue that was raised fully six years ago. http://www.mail-archive.com/gmx-users@gromacs.org/msg00405.ht

[gmx-users] Trjconv PDB files define solvent as "ATOM"?

2012-03-19 Thread John Ladasky
I am trying to import PDB file snapshots from a GROMACS 4.5.4-generated trajectory into other software tools -- specifically, Biopython. I generate the snapshots using trjconv in GROMACS. I am interested in the water molecules from my solvent box, so I do not discard them. When trjconv promp

[gmx-users] Superimposing dissimilar structures

2012-01-08 Thread John Ladasky
Hello everyone, I've used the rot+trans option in GROMACS trjconv to superimpose groups of atoms within a single molecular dynamics simulation.  I am now interested in modeling a protein, and a rather thoroughly scrambled circular permutation of that same protein.  I want to construct a superim

[gmx-users] Assembling a good simulation starting point

2010-02-18 Thread John Ladasky
  Thanks for your advice!   John Ladasky -- gmx-users mailing listgmx-users@gromacs.org http://lists.gromacs.org/mailman/listinfo/gmx-users Please search the archive at http://www.gromacs.org/search before posting! Please don't post (un)subscribe requests to the list. Use the w