[gmx-users] do_dssp

2015-05-22 Thread MUSYOKA THOMMAS
Hi Gromacs users,
I did my simulations using an older version of GROMACS (ie 4.5.7) and after
reading through various posts, it seems I have to do the dssp analysis
using a newer version. Can I use the trajectories I got from the previous
older version of GROMACS to perform dssp analysis on Gromacs 5.0.5?

Thanks

Tom
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Re: [gmx-users] do_dssp

2015-05-22 Thread MUSYOKA THOMMAS
Thanks Mark.

On Fri, May 22, 2015 at 3:17 PM, Mark Abraham mark.j.abra...@gmail.com
wrote:

 Yes

 On Fri, May 22, 2015 at 2:59 PM MUSYOKA THOMMAS 
 mutemibiochemis...@gmail.com wrote:

  Hi Gromacs users,
  I did my simulations using an older version of GROMACS (ie 4.5.7) and
 after
  reading through various posts, it seems I have to do the dssp analysis
  using a newer version. Can I use the trajectories I got from the previous
  older version of GROMACS to perform dssp analysis on Gromacs 5.0.5?
 
  Thanks
 
  Tom
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Re: [gmx-users] Gromacs feature and usage survey

2014-08-26 Thread MUSYOKA THOMMAS
Hey Mark,
In ref to part 3 of the survey, I am surprised that it does not capture
Africa.


On Tue, Aug 26, 2014 at 1:39 PM, Mark Abraham mark.j.abra...@gmail.com
wrote:

 Dear Gromacs users/developers,

 Gromacs developers Profs. Michael Shirts and Peter Kasson at the University
 of Virginia are conducting a survey on Gromacs usage and to gauge interest
 in potential additional features to Gromacs.  The survey can be found at:

 https://www.surveymonkey.com/s/BD63LRP

 Survey participants submitted by 11:59 p.m. GMT on Tuesday, September 2nd,
 will be eligible for a random drawing of two $50 Amazon gift certificates
 (one response per person, excluding participants in any location where such
 a drawing runs afoul of any local law, and those in the Shirts and Kasson
 labs, Amazon country site of your choice).

 Thanks!

 Mark Abraham
 Gromacs development manager
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Re: [gmx-users] Gromacs feature and usage survey

2014-08-26 Thread MUSYOKA THOMMAS
Can't do it manually, and can't proceed to the next section.


On Tue, Aug 26, 2014 at 2:29 PM, Mark Abraham mark.j.abra...@gmail.com
wrote:

 Oops, sorry about that! We'll add that manually. Anybody else?

 Mark


 On Tue, Aug 26, 2014 at 2:24 PM, MUSYOKA THOMMAS 
 mutemibiochemis...@gmail.com wrote:

  Hey Mark,
  In ref to part 3 of the survey, I am surprised that it does not capture
  Africa.
 
 
  On Tue, Aug 26, 2014 at 1:39 PM, Mark Abraham mark.j.abra...@gmail.com
  wrote:
 
   Dear Gromacs users/developers,
  
   Gromacs developers Profs. Michael Shirts and Peter Kasson at the
  University
   of Virginia are conducting a survey on Gromacs usage and to gauge
  interest
   in potential additional features to Gromacs.  The survey can be found
 at:
  
   https://www.surveymonkey.com/s/BD63LRP
  
   Survey participants submitted by 11:59 p.m. GMT on Tuesday, September
  2nd,
   will be eligible for a random drawing of two $50 Amazon gift
 certificates
   (one response per person, excluding participants in any location where
  such
   a drawing runs afoul of any local law, and those in the Shirts and
 Kasson
   labs, Amazon country site of your choice).
  
   Thanks!
  
   Mark Abraham
   Gromacs development manager
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Re: [gmx-users] Gromacs feature and usage survey

2014-08-26 Thread MUSYOKA THOMMAS
Thank you Prof. Michael


On Tue, Aug 26, 2014 at 3:11 PM, Michael Shirts mrshi...@gmail.com wrote:

 Survey is now with 100% more African representation! Thanks for catching
 that smaller but important category.  I'm not sure it's possible to edit
 old entries, but it's there for the rest of the week.


 On Tue, Aug 26, 2014 at 8:24 AM, MUSYOKA THOMMAS 
 mutemibiochemis...@gmail.com wrote:

  Hey Mark,
  In ref to part 3 of the survey, I am surprised that it does not capture
  Africa.
 
 
  On Tue, Aug 26, 2014 at 1:39 PM, Mark Abraham mark.j.abra...@gmail.com
  wrote:
 
   Dear Gromacs users/developers,
  
   Gromacs developers Profs. Michael Shirts and Peter Kasson at the
  University
   of Virginia are conducting a survey on Gromacs usage and to gauge
  interest
   in potential additional features to Gromacs.  The survey can be found
 at:
  
   https://www.surveymonkey.com/s/BD63LRP
  
   Survey participants submitted by 11:59 p.m. GMT on Tuesday, September
  2nd,
   will be eligible for a random drawing of two $50 Amazon gift
 certificates
   (one response per person, excluding participants in any location where
  such
   a drawing runs afoul of any local law, and those in the Shirts and
 Kasson
   labs, Amazon country site of your choice).
  
   Thanks!
  
   Mark Abraham
   Gromacs development manager
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   * Please search the archive at
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[gmx-users] Time evolution of distance of Hydrogen bond

2014-08-20 Thread MUSYOKA THOMMAS
Dear Users,
I am working on protein-ligand MD simulation. I have managed to get the
number of H-bonds formed between the protein and ligand throughout my
simulation period. I noticed three important residue participate in the
formation of this H-bonding network.

I need to determine the *time evolution* of the specific H-bond *distance*
throughout my simulation. How do I go about this?
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Re: [gmx-users] need you help - New user

2014-06-02 Thread MUSYOKA THOMMAS
Try using the following command

mdrun -v -deffnm nvt


On Mon, Jun 2, 2014 at 11:23 AM, Urszula Uciechowska 
urszula.uciechow...@biotech.ug.edu.pl wrote:

 Dear Gromacs users,

 I am having problem running NVT calculation, when is finished I do not see
 the *.gro file among the out file. I do not know what the problem can be.
 I am not getting any error.

 The command that I used:

 mdrun -s input_nvt.tpr -deffnm nvt -v

 in .Log file I have

  R E A L   C Y C L E   A N D   T I M E   A C C O U N T I N G

  Computing: Nodes Number G-CyclesSeconds %
 ---
  Domain decomp. 6770 1779.164  785.2 5.5
  DD comm. load  6769   10.5824.7 0.0
  DD comm. bounds6769   11.2465.0 0.0
  Send X to PME  6770   37.780   16.7 0.1
  Comm. coord.   6770   71.593   31.6 0.2
  Neighbor search6770 5301.193 2339.716.5
  Force  6770 5327.504 2351.316.6
  Wait + Comm. F 6770 1984.758  876.0 6.2
  PME mesh   6770 5970.668 2635.118.6
  Wait + Comm. X/F   6   10102.647 4458.831.4
  Wait + Recv. PME F 6770   36.705   16.2 0.1
  Write traj.6 10   21.6449.6 0.1
  Update 6770  205.313   90.6 0.6
  Constraints6770  778.976  343.8 2.4
  Comm. energies 6771  301.011  132.9 0.9
  Rest   6 208.397   92.0 0.6
 ---
  Total 12   32149.18014189.0   100.0
 ---
 ---
  PME redist. X/F6   1540  565.866  249.7 1.8
  PME spread/gather  6   1540 2972.849 1312.1 9.2
  PME 3D-FFT 6   1540 1841.695  812.8 5.7
  PME solve  6770  590.096  260.4 1.8
 ---

 Parallel run - timing based on wallclock.

NODE (s)   Real (s)  (%)
Time:   1182.415   1182.415100.0
19:42
(Mnbf/s)   (GFlops)   (ns/day)  (hour/ns)
 Performance:129.307 11.117  0.113213.278
 Finished mdrun on node 0 Mon Jun  2 11:00:09 2014
 (END)


 Thank you for your help.

 Urszula Uciechowska


 -
 Ta wiadomość została wysłana z serwera Uniwersytetu Gdańskiego
 http://www.ug.edu.pl/

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[gmx-users] Ligand RMSD greater than Protein C alpha RMSD

2014-05-07 Thread MUSYOKA THOMMAS
Dear Users,
I am doing protein-ligand MD simulations and came across rather unusual
result where the Ligand's RMSD is greater than that of the C alpha backbone
of the protein in which it is docked into. Does this happen under usual
circumstances?
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[gmx-users] Write a pdb file after every ns of simulation

2014-04-30 Thread MUSYOKA THOMMAS
Dear Users,
I want to write a pdb file after each ns of my 10 ns protein-ligand
trajectory
Which command do I use?
Thank you
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Re: [gmx-users] Write a pdb file after every ns of simulation

2014-04-30 Thread MUSYOKA THOMMAS
Hi Tsjerk,
Hi, just noticed, I used the wrong group. Up and running now.
Thanks


On Wed, Apr 30, 2014 at 11:56 AM, Tsjerk Wassenaar tsje...@gmail.comwrote:

  What am I missing?
 
 
 The ligand! (Oh, I just couldn't resist! Sorry about that.)

 Either your xtc-groups weren't set correctly or your index group does not
 include the ligand. I hope for you it's the latter.

 Cheers,

 Tsjerk
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-- 

*MUSYOKA THOMMAS MUTEMIMob nos **+27844846540*
*B.Sc Biochemistry (Kenyatta University), MSc Pharmaceutical Science
(Nagasaki University)*

*PhD Student - Research Unit in Bioinformatics (RUBi - Rhodes University)*Skype
ID- MUSYOKA THOMMAS MUTEMI
Alternative email - thom...@sia.co.ke








*Do all the good you can, By all the means you can, In all the ways you
can, In all the places you can,At all the times you can,To all the people
you can,As long as ever you can. - John Wesley. *
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[gmx-users] Ligand observables in a protein-ligand simulation

2014-04-15 Thread MUSYOKA THOMMAS
Dear Users,
How can one determine a ligand's rmsd, its radius of gyration, and its SASA
during a protein-ligand simulation?

Thank you
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Re: [gmx-users] Ligand observables in a protein-ligand simulation

2014-04-15 Thread MUSYOKA THOMMAS
I am trying to create an index file just as I did for the protein but am
lost when it comes to the following options

Keep 13 (this is ok as it is the ligand group number)

a - Not sure since after trying CA or C i ended up getting the number of
atoms in the protein

name 13 Calpha (Not sure)

q

What options should I use for a and name 13 prompts?

Thank you


On Tue, Apr 15, 2014 at 12:12 PM, Mark Abraham mark.j.abra...@gmail.comwrote:

 The same way you'd do it for a protein, but with a suitable group.

 Mark
 On Apr 15, 2014 11:55 AM, MUSYOKA THOMMAS mutemibiochemis...@gmail.com
 wrote:

  Dear Users,
  How can one determine a ligand's rmsd, its radius of gyration, and its
 SASA
  during a protein-ligand simulation?
 
  Thank you
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[gmx-users] Determining interactions in Protein-Ligand complex simulations

2014-04-14 Thread MUSYOKA THOMMAS
Dear users,
I am doing a 10 ns protein-ligand simulation and would like to determine
the hydrogen and hydrophobic interactions per each ns and the participating
amino acid residues.

How do I go about this?

Thank you.
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[gmx-users] Protein-Ligand MS simulation

2014-03-24 Thread MUSYOKA THOMMAS
Hello. I have a protein pdb and the best pose of a ligand obtained through
docking using auto dock. However, when I combine the ligand and protein
using the discovery studio, some residues like Lysine in the protein pdb
gets protonated as well as the N-terminal residue. Is this unusual and can
it affect the MD end results?
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Re: [gmx-users] Out of Disk Space

2014-03-04 Thread MUSYOKA THOMMAS
Hi Pavan,
When you use the grompp command to prepare the md.tpr file for the final
mdrun, do you notice such a statement This run will generate roughly X
Mb of data. I suspect the resultant trajectory could be exceeding the
available space.


On Tue, Mar 4, 2014 at 4:12 PM, Pavan Kumar kumar.pavan...@gmail.comwrote:

 Hi everybody,
 I am running mdrun_mpi V 4.6.5 for nsteps=1000; 20 ns
 My simulation is getting stopped at 500ps and I am getting following error
 even though i have enough space on my cluster around 17 GB.

 *Cannot fsync 'md1.trr'; maybe you are out of disk space?*
 *Cannot fsync 'md1.log'; maybe you are out of disk space?*


  I have executed for two times, each time i get different error.

 What is the reason for the above error. I am sharing my mdp file.
 Any help is appreciated.
 --
 Thanks  Regards,
 Pavan Kumar
 Project Engineer
 CDAC -KP
 Ph +91-7676367646

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[gmx-users] MD SIMULATIONS ON A CLUSTER

2014-01-30 Thread MUSYOKA THOMMAS
Dear Users,
I have been doing 10 ns MD simulations of protein-ligand complexes on a
local cluster of 64 cores using GROMACS 4.5.7. However, there seems to be
no much difference in the time it takes to complete one cycle of an mdrun
(3-days - same as when I used a machine with 4 cores).

Will be appreciative to know if its possible shorten the time period.

See the following command that I have incorporated in a python script so as
to automate the  md process right from the beginning.


md=md.mdp
os.system(mdscriptcopy)
finalmdruncommand=grompp -f %s -c %s -t %s -p %s -n %s -o %s%
(md,nptgro,nvtcpt,topoltop,indexfile,mdtpr)
os.system(finalmdruncommand)
*finalrun=mdrun -v -deffnm md*
os.system(finalrun)








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[gmx-users] Using several cores for MD production

2013-12-03 Thread MUSYOKA THOMMAS
Dear Users,

I am using a cluster of 64 cores to perform my MD simulations using GROMACS
version 4.5.5.

I would be glad to know the exact mdrun command that will allow me use the
available resources.

Thank you.









*Do all the good you can, By all the means you can, In all the ways you
can, In all the places you can,At all the times you can,To all the people
you can,As long as ever you can. - John Wesley. *
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Re: [gmx-users] Using several cores for MD production

2013-12-03 Thread MUSYOKA THOMMAS
Dear Justin,
Well it seems i am the first one to do MD simulations in my lab and i am
using a chemistry department cluster and nobody has prior knowledge on
GROMACS. I can use all the cores in the cluster but need to know if there
is a specific mdrun command that can allow me specify the number of cores
to be used for the MD run.

Thank you


On Tue, Dec 3, 2013 at 5:37 PM, Justin Lemkul jalem...@vt.edu wrote:



 On 12/3/13 10:23 AM, MUSYOKA THOMMAS wrote:

 Dear Users,

 I am using a cluster of 64 cores to perform my MD simulations using
 GROMACS
 version 4.5.5.

 I would be glad to know the exact mdrun command that will allow me use the
 available resources.


 The answer depends entirely on the architecture of the cluster.  Your sys
 admin should know.

 -Justin

 --
 ==

 Justin A. Lemkul, Ph.D.
 Postdoctoral Fellow

 Department of Pharmaceutical Sciences
 School of Pharmacy
 Health Sciences Facility II, Room 601
 University of Maryland, Baltimore
 20 Penn St.
 Baltimore, MD 21201

 jalem...@outerbanks.umaryland.edu | (410) 706-7441

 ==
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-- 

*MUSYOKA THOMMAS MUTEMIMob nos **+27844846540*
*B.Sc Biochemistry (Kenyatta University), MSc Pharmaceutical Science
(Nagasaki University)*

*PhD Student - Research Unit in Bioinformatics (RUBi - Rhodes University)*Skype
ID- MUSYOKA THOMMAS MUTEMI
Alternative email - thom...@sia.co.ke








*Do all the good you can, By all the means you can, In all the ways you
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