[gmx-users] Re: Re: question about trjcat command: Merge files

2011-06-02 Thread Miguel Quiliano Meza
Dear community. Thanks to all, finally I could resolve my problem, with the option "-setttime", it was vital, then "c" (continue). Now I have two questions, 1) In which case the option "l" could be useful? I did not understand very well the aplicability. 2) Could you please recommend me an arti

[gmx-users] Re: question about trajcat command: Merge files

2011-06-01 Thread Miguel Quiliano Meza
ts of gmx-users digest..." > > > Today's Topics: > > 1. Re: scaling non-bonded interactions (Da-Wei Li) > 2. question about trajcat command: Merge files (Miguel Quiliano Meza) > 3. Re: Re: scaling non-bonded interactions (Justin A. Lemkul) > 4. Re: scaling non-bond

[gmx-users] question about trajcat command: Merge files

2011-06-01 Thread Miguel Quiliano Meza
Dear community, I have a couple of doubts, please help me to clarify. I performed 4 MD simulations using Gromacs (each one of 1ns, 2ns, 3ns ,4ns) , they are only a continuation of the last, because of I was explored the rmsd variation along the time. Now I want to merge all the trajectories to do

[gmx-users] Studying protein folding: An approach

2011-04-19 Thread Miguel Quiliano Meza
Dear Community. I am a beginner user of Gromacs for this reason I would like to consult my case. Nowadays, I am studying a protein which folding process has experimental data (especially for a mutant). Structural information about how a mutant destabilizes secondary structure was recently publish

[gmx-users] RE: How to install GROMACS in Rocks Cluster 5.4 : ERROR

2011-04-12 Thread Miguel Quiliano Meza
make[2]: Entering directory `/share/apps/src/fftw-3.2.2/m4' make[2]: Nothing to be done for `all'. make[2]: Leaving directory `/share/apps/src/fftw-3.2.2/m4' make[1]: Leaving directory `/share/apps/src/fftw-3.2.2' What could be the problem? please advices. Miguel Quiliano.

[gmx-users] Re: gmx-users Digest, Vol 84, Issue 90

2011-04-11 Thread Miguel Quiliano Meza
t; >> > >> -- > >> gmx-users mailing listgmx-users@gromacs.org > >> http://lists.gromacs.org/mailman/listinfo/gmx-users > >> Please search the archive at > http://www.gromacs.org/Support/Mailing_Lists/Search

[gmx-users] How to install GROMACS in Rocks Cluster 4.5.4 : ERROR

2011-04-11 Thread Miguel Quiliano Meza
Dear community. I have been trying to install gromacs 4.5.4 in my rocks cluster version 5.4 but unfortunately the system showed "configure: error: Cannot find fftw3 library" after launch the ./configure (you can see below) Really I do not understand because I did before this: # export LDFLAGS="-

[gmx-users] Re: gmx-users Digest, Vol 84, Issue 28

2011-04-04 Thread Miguel Quiliano Meza
gmx-users-requ...@gromacs.org > > You can reach the person managing the list at >gmx-users-ow...@gromacs.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of gmx-users digest..." > > > Today's Topics:

[gmx-users] how to Installing GROMACS in rocks cluster

2011-04-04 Thread Miguel Quiliano Meza
Dear Colleagues. I have been searching information about "HOW TO INSTALL GROMACS in rocks cluster?". Unfortunately, the information that I found is not clear. Someone can help me with this question. Maybe there are basic but important steps that I have to keep in mind. Could you please share your

[gmx-users] Fe+2 not found in forcefield ffG43a1

2010-04-09 Thread Miguel Quiliano Meza
Dear Users. Maybe this question is easy for all, but i have problems, patience please. I do not have experience with metals, now I have a protein (crystal) with Fe+2, which is coordinating with three HISTIDINES, one D and two molecules of water, when I try to run "pdb2gmx" the program tells me "R

[gmx-users] an energy minimization question, working with H-BONDS

2010-04-07 Thread Miguel Quiliano Meza
Dear Users. I am a relative new user of GROMACS and I have some doubts: I would like to perform a energy minimization (with water and iones) of a crystal in orden to re-build the H-bonds responsible of the secundary structure, to achieve this goal I want to restraint the movement of the protein (

[gmx-users] a simple doubt about g_rms

2010-02-04 Thread Miguel Quiliano Meza
Hi everyone. Nowadays I am learning how to analyze my results after MD. I have been reading the tutorial "GROMACS Tutorial for Drug – Enzyme Complex" and all is fine but I have a big doubt about g_rms. I know that g_rms compares two structures by computing the root mean square deviation (RMSD). In

[gmx-users] Re: gmx-users Digest, Vol 69, Issue 133

2010-01-26 Thread Miguel Quiliano Meza
roup SOL is not continuous > To: Discussion list for GROMACS users > Message-ID: <4b5f5edf.4080...@vt.edu> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > > > Miguel Quiliano Meza wrote: > > *Hi everyone. > > > > I have a prob

[gmx-users] the solvent group SOL is not continuous

2010-01-26 Thread Miguel Quiliano Meza
*Hi everyone. I have a problem when I try to run GENION, GROMACS says: * WARNING: turning of free energy, will use lambda=0 Reading file 1x8a_solvatada.tpr, VERSION 3.3.3 (single precision) Using a coulomb cut-off of 0.9 nm Will try to add 0 Na ions and 15 NA+ ions. Select a continuous group of so

[gmx-users] checkpoint MDRUN -cpt question

2010-01-21 Thread Miguel Quiliano Meza
Hi everyone. I am a relative new user of GROMACS. I have performed some short simulations but now I want to something big. I have been reading on the web site and found that mdrun -.cpt option is used to generate checkpoints, I am using GROMACS 3.3.3 but I don't find -cpt option when I call mdrun

[gmx-users] how to save information even after stopping calculation

2009-09-22 Thread Miguel Quiliano Meza
Dear gromacs users I am running a molecular dynamics calculation, all is fine but the time of calculation is big, I would like to know if I can stop the calculation without lose the information generated until that point. thanks in advance. Miguel Quiliano. __

[gmx-users] help with FAD topology, please

2009-03-01 Thread Miguel Quiliano Meza
Dear all. I am a new user of GROMACS, I have read the user book and free tutorials in the WEB, but now when I try to do a simulation, appears FAD no topology, I have been reading that PRODRG server is a way to achieve that goal, I tried but the output format is different, it means old version (for