[gmx-users] Re: gmx-users Digest, Vol 82, Issue 150

2011-02-21 Thread Evelyne Deplazes
I tried a couple of things according to your suggestions, but no luck so far


I used the following commands
1) trjconv  -f trajout_dt2000.xtc -s topol.tpr -pbc mol -o trajout_mol.xtc
2) trjconv  -f trajout_mol.xtc -s topol.tpr -pbc nojump trajout_nojump.xtc

no luck...If I use command 1) only the trajout_mol.xtc the protein is still
split into to across 2 boxes ie it looks like it did not do anything to
the trajectory
if I use 1) and 2) the system gets ripped apart. The system is no longer a
box but a flat disk (very funky)


then I tried
trjconv  -f trajout_dt2000.xtc -s topol.tpr -pbc mol -fit translation -o
trajout_fit.xtc
again...it looks like the trajectory did not change and the protein is still
jumping out of the box

then I tried
trjconv  -f trajout_dt2000.xtc -s topol.tpr -pbc mol -trans -6 6 0 -o
trajout_trans.xtc(the box is about 12 x 12)
now at least this command did something to the trajectory. The entire
protein is now in the center of the box (rather than in the corner) but in
the frames where the pb jump occurs the protein still jumps out of the box!
it now simply jumps from the center to the next box rather than sliding
across the border into the next box

On 21 February 2011 16:02, gmx-users-requ...@gromacs.org wrote:

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 Today's Topics:

   1. Re: g_covar to calculate correlation of motion (Tsjerk Wassenaar)
   2. Re: g_covar to calculate correlation of motion (bipin singh)
   3. removing pbc jumps from trajectory (Evelyne Deplazes)
   4. Re: removing pbc jumps from trajectory (XAvier Periole)


 -- Forwarded message --
 From: Tsjerk Wassenaar tsje...@gmail.com
 To: Discussion list for GROMACS users gmx-users@gromacs.org
 Date: Mon, 21 Feb 2011 08:14:26 +0100
 Subject: Re: [gmx-users] g_covar to calculate correlation of motion

 Hi Bipin,

 Try using a .gro or .pdb file as reference structure (-s). Only .tpr files
 are version specific.

 Cheers,

 Tsjerk

 On Feb 21, 2011 8:05 AM, bipin singh bipinel...@gmail.com wrote:

 Dear GMX users,
 I want to calculate the correlated motion between atoms during the md 
 simulation

 for that purpose I am using g_covar(the one which is available under 
 http://www.gromacs.org/Downloads/User_contributions/Other_software)


 but it is not compatible with the GROMACS-4.5.3, so please suggest me the 
 alternative way or does anyone have the modified g_covar for
 GROMKACS-4.5.3.

 --
 *
 -
 Thanks and regards
 Bipin Singh
 *
 *
 *


 --
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 -- Forwarded message --
 From: bipin singh bipinel...@gmail.com
 To: Discussion list for GROMACS users gmx-users@gromacs.org
 Date: Mon, 21 Feb 2011 13:17:48 +0530
 Subject: Re: [gmx-users] g_covar to calculate correlation of motion
 Hi,
 Thanks for your suggestion.
 While running the g_covar it is showing the error that aminoacids.dat is
 not found, so i have copied the residuetypes.dat(which i seems the new
 modified name for aminoacids.dat in current GROMACS version), then it
 prompts to choose the group for least square fit, which is not usual
 groups(i.e protein or C alpha groups etc.).please suggest where i have
 made mistake.

 Choose a group for the least squares fit
 Opening library file aminoacids.dat
 WARNING 2 [file aminoacids.dat, line 1]:
   File aminoacids.dat is empty
 Group 0 (  System) has 30585 elements
 Group 1 ( GLU) has47 elements
 Group 2 ( HIS) has86 elements
 Group 3 ( ASN) has   224 elements
 Group 4 ( PRO) has56 elements
 Group 5 ( VAL) has   272 elements
 Group 6 ( MET) has68 elements
 Group 7 ( GLY) has   168 elements
 Group 8 ( ILE) has   190 elements
 Group 9 ( ALA) has   110 elements
 Group10 ( SER) has   143 elements
 Group11 ( PHE) has80 elements
 Group12 ( LYS) has   242 elements
 Group13 ( TYR) has   189 elements
 Group14 ( LEU) has   304 elements
 Group15 ( GLN) has   102 elements
 Group16 ( TRP) has48 elements
 Group17 ( 

Re: [gmx-users] Re: gmx-users Digest, Vol 82, Issue 150

2011-02-21 Thread XAvier Periole


ok this does not make sense! Did you check your tpr file?
the command 1) should give you a trajectory where the molecules
are whole but jumping across the boundaries ... if it does not that
means that the tpr is fucky!

Try to visualize your tpr in vmd ... night give you some insight on  
what is

going on!

You could also make a tpr file ... making sure things a fine :))

On Feb 21, 2011, at 9:45 AM, Evelyne Deplazes wrote:

I tried a couple of things according to your suggestions, but no  
luck so far


I used the following commands
1) trjconv  -f trajout_dt2000.xtc -s topol.tpr -pbc mol -o  
trajout_mol.xtc
2) trjconv  -f trajout_mol.xtc -s topol.tpr -pbc nojump  
trajout_nojump.xtc


no luck...If I use command 1) only the trajout_mol.xtc the protein  
is still split into to across 2 boxes ie it looks like it did not  
do anything to the trajectory
if I use 1) and 2) the system gets ripped apart. The system is no  
longer a box but a flat disk (very funky)



then I tried
trjconv  -f trajout_dt2000.xtc -s topol.tpr -pbc mol -fit  
translation -o trajout_fit.xtc
again...it looks like the trajectory did not change and the protein  
is still jumping out of the box


then I tried
trjconv  -f trajout_dt2000.xtc -s topol.tpr -pbc mol -trans -6 6 0 - 
o trajout_trans.xtc(the box is about 12 x 12)
now at least this command did something to the trajectory. The  
entire protein is now in the center of the box (rather than in the  
corner) but in the frames where the pb jump occurs the protein still  
jumps out of the box! it now simply jumps from the center to the  
next box rather than sliding across the border into the next box


On 21 February 2011 16:02, gmx-users-requ...@gromacs.org wrote:
Send gmx-users mailing list submissions to
   gmx-users@gromacs.org

To subscribe or unsubscribe via the World Wide Web, visit
   http://lists.gromacs.org/mailman/listinfo/gmx-users
or, via email, send a message with subject or body 'help' to
   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:

  1. Re: g_covar to calculate correlation of motion (Tsjerk Wassenaar)
  2. Re: g_covar to calculate correlation of motion (bipin singh)
  3. removing pbc jumps from trajectory (Evelyne Deplazes)
  4. Re: removing pbc jumps from trajectory (XAvier Periole)


-- Forwarded message --
From: Tsjerk Wassenaar tsje...@gmail.com
To: Discussion list for GROMACS users gmx-users@gromacs.org
Date: Mon, 21 Feb 2011 08:14:26 +0100
Subject: Re: [gmx-users] g_covar to calculate correlation of motion
Hi Bipin,

Try using a .gro or .pdb file as reference structure (-s). Only .tpr  
files are version specific.


Cheers,

Tsjerk



On Feb 21, 2011 8:05 AM, bipin singh bipinel...@gmail.com wrote:

Dear GMX users,
I want to calculate the correlated motion between atoms during the  
md simulation



for that purpose I am using g_covar(the one which is available  
under http://www.gromacs.org/Downloads/User_contributions/Other_software)




but it is not compatible with the GROMACS-4.5.3, so please suggest  
me the alternative way or does anyone have the modified g_covar for

GROMKACS-4.5.3.

--
-
Thanks and regards
Bipin Singh



--
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-- Forwarded message --
From: bipin singh bipinel...@gmail.com
To: Discussion list for GROMACS users gmx-users@gromacs.org
Date: Mon, 21 Feb 2011 13:17:48 +0530
Subject: Re: [gmx-users] g_covar to calculate correlation of motion
Hi,
Thanks for your suggestion.
While running the g_covar it is showing the error that  
aminoacids.dat is not found, so i have copied the  
residuetypes.dat(which i seems the new modified name for  
aminoacids.dat in current GROMACS version), then it prompts to  
choose the group for least square fit, which is not usual groups(i.e  
protein or C alpha groups etc.).please suggest where i have made  
mistake.


Choose a group for the least squares fit
Opening library file aminoacids.dat
WARNING 2 [file aminoacids.dat, line 1]:
  File aminoacids.dat is empty
Group 0 (  System) has 30585 elements
Group 1 ( GLU) has47 elements
Group 2 ( HIS) has86 elements
Group 3 ( ASN) has   224 elements
Group 4 ( PRO) has56 elements
Group 5 ( VAL) has   272 elements
Group 6 ( MET) has68 elements
Group 7 ( GLY) has   168 elements
Group 8 ( ILE) has   

Re: [gmx-users] Re: gmx-users Digest, Vol 82, Issue 150

2011-02-21 Thread Tsjerk Wassenaar
Hi Evelyne,

 1) trjconv  -f trajout_dt2000.xtc -s topol.tpr -pbc mol -o trajout_mol.xtc

The option -pbc mol IIRC relates to the option for the unit cell
representation (-ur). To unbreak molecules using trjconv, you need to
have .tpr file and use the option -pbc whole.

 2) trjconv  -f trajout_mol.xtc -s topol.tpr -pbc nojump trajout_nojump.xtc
 if I use 1) and 2) the system gets ripped apart. The system is no longer a
 box but a flat disk (very funky)

This is because the jumps are removed and over time the lipids diffuse
in the plane. They've diffused quite a bit probably, smearing
themselves out over a disk.

Groetjes,

Tsjerk

-- 
Tsjerk A. Wassenaar, Ph.D.

post-doctoral researcher
Molecular Dynamics Group
* Groningen Institute for Biomolecular Research and Biotechnology
* Zernike Institute for Advanced Materials
University of Groningen
The Netherlands
--
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