Re: [gmx-users] BD and SD equations

2011-07-08 Thread Mark Abraham
On 9/07/2011 3:20 AM, Marcelo A. Carignano wrote: Thank you Mark. On Jul 8, 2011, at 11:17 AM, Mark Abraham wrote: On 9/07/2011 1:36 AM, Marcelo A. Carignano wrote: Hi all, Stochastic dynamics is described in section 3.8 of the Manual (v. 4.5) Equation 3.108 is dimensionally incorrect, or at

Re: [gmx-users] help on mdrun

2011-07-08 Thread Mark Abraham
On 9/07/2011 3:37 AM, raghu...@bcpindia.org wrote: Hi I have a problem related to submitting a mdrun job on cluster. I tried to ask help or gromacs and rocks users-group. My machine specs. Cluster of Intel Xeon processors:QC with Rocks Cluster. 8 processors (16 threads) When I submit md

Re: [gmx-users] dodecahedron, octahedron box

2011-07-08 Thread Justin A. Lemkul
E. Nihal Korkmaz wrote: Dear all, I am trying to solvate a protein in a dodecahedron box, and the box doesn't seem right. I tried /trjconv -s ur compact -pbc mol, /that ended up with a dodecahedron shaped water distrubution around the protein however the box is still shown as triclinic inb

[gmx-users] dodecahedron, octahedron box

2011-07-08 Thread E. Nihal Korkmaz
Dear all, I am trying to solvate a protein in a dodecahedron box, and the box doesn't seem right. I tried *trjconv -s ur compact -pbc mol, *that ended up with a dodecahedron shaped water distrubution around the protein however the box is still shown as triclinic inbn Pymol? Is this Pymol's weakne

Re: [gmx-users] gcluster- Error: too many iterations in routine JACOBI

2011-07-08 Thread Justin A. Lemkul
Eric Fiedler wrote: In g-cluster Fatal error: Error: too many iterations in routine JACOBI I don't even know where to start with this one. There are many reasons why this may occur. Search the list archive for possibilities: http://www.gromacs.org/Support/Mailing_Lists/Search If you'r

[gmx-users] gcluster- Error: too many iterations in routine JACOBI

2011-07-08 Thread Eric Fiedler
In g-cluster Fatal error: Error: too many iterations in routine JACOBI I don't even know where to start with this one. -Eric -- 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/Mailin

Re: [gmx-users] g_cluster changing traj.trr file to traj.trr.tpr

2011-07-08 Thread Eric Fiedler
Fixed! Thank you! On Jul 8, 2011, at 3:23 PM, Justin A. Lemkul wrote: > > > Eric Fiedler wrote: >> Hi, >> I'm running Gromacs 4.5.1. Our group uses lammps for our simulations, but I'm >> trying to use the g_cluster tool. I used VMD to convert trajectory files to >> .trr and .pdb format, then a

Re: [gmx-users] g_cluster changing traj.trr file to traj.trr.tpr

2011-07-08 Thread Justin A. Lemkul
Eric Fiedler wrote: Hi, I'm running Gromacs 4.5.1. Our group uses lammps for our simulations, but I'm trying to use the g_cluster tool. I used VMD to convert trajectory files to .trr and .pdb format, then attempt to run g_cluster using: g_cluster -f traj.pdb -s trajstart.trr -g cluster.log -c

[gmx-users] g_cluster changing traj.trr file to traj.trr.tpr

2011-07-08 Thread Eric Fiedler
Hi, I'm running Gromacs 4.5.1. Our group uses lammps for our simulations, but I'm trying to use the g_cluster tool. I used VMD to convert trajectory files to .trr and .pdb format, then attempt to run g_cluster using: g_cluster -f traj.pdb -s trajstart.trr -g cluster.log -cutoff 1 -fit -method

[gmx-users] Re: The N and C termini of peptides

2011-07-08 Thread Justin A. Lemkul
errabah fatima ezzahra wrote: two trimers , the first that has three peptides , first pepetide goes from N to C terminus and the other are antiparallel with it they go from C to N so if you look at the end of peptides on one side of the first trimer you see LEU GLU GLU then the other trim

[gmx-users] The N and C termini of peptides

2011-07-08 Thread errabah fatima ezzahra
 two trimers , the first that has three peptides , first pepetide goes from N to C terminus and the other are antiparallel with it they go from C to N  so if you look at the end of peptides on one side of the first trimer you see LEU GLU GLU then the other trimer that is one goes from   N-ter

Re: Re : Re : Re : Re : Re : [gmx-users] Re: Hexamer problem/ The N and C termini of peptides

2011-07-08 Thread Justin A. Lemkul
errabah fatima ezzahra wrote: Hi All I am using course grained model where i have the whole glutamic acid as a sphere , and the other end is Lucine (hydrophobic) , do i need to still worry about capping the residue to evoid the negative charge in GLU from repelling other GLU . Capping g

[gmx-users] help on mdrun

2011-07-08 Thread raghuvir
Hi I have a problem related to submitting a mdrun job on cluster. I tried to ask help or gromacs and rocks users-group. My machine specs. Cluster of Intel Xeon processors:QC with Rocks Cluster. 8 processors (16 threads) When I submit mdrun -deffnm umbrella0 -pf pullf-umbrella0.xvg -px p

Re : Re : Re : Re : Re : [gmx-users] Re: Hexamer problem/ The N and C termini of peptides

2011-07-08 Thread errabah fatima ezzahra
Hi All I am using course grained model where i have the whole glutamic acid as a sphere , and the other end is Lucine (hydrophobic) , do i need to still worry about capping the residue to evoid the negative charge in GLU from repelling other GLU . Also is it possible to control the orientati

Re: [gmx-users] BD and SD equations

2011-07-08 Thread Marcelo A. Carignano
Thank you Mark. On Jul 8, 2011, at 11:17 AM, Mark Abraham wrote: On 9/07/2011 1:36 AM, Marcelo A. Carignano wrote: Hi all, Stochastic dynamics is described in section 3.8 of the Manual (v. 4.5) Equation 3.108 is dimensionally incorrect, or at least I cannot understand it. Left hand side

Re: [gmx-users] BD and SD equations

2011-07-08 Thread Mark Abraham
On 9/07/2011 1:36 AM, Marcelo A. Carignano wrote: Hi all, Stochastic dynamics is described in section 3.8 of the Manual (v. 4.5) Equation 3.108 is dimensionally incorrect, or at least I cannot understand it. Left hand side is a force, Specifically, mass * length * time^-2. Note that (d^2 r)/

[gmx-users] BD and SD equations

2011-07-08 Thread Marcelo A. Carignano
Hi all, Stochastic dynamics is described in section 3.8 of the Manual (v. 4.5) Equation 3.108 is dimensionally incorrect, or at least I cannot understand it. Left hand side is a force, and the first term on the right hand side has a missing length in the numerator to be a force. This is accor

Re: [gmx-users] isothermal compressibility- OPLSAA at high pressure

2011-07-08 Thread Mark Abraham
On 6/07/2011 5:55 AM, Juliette N. wrote: Hello Dear all, I have a few short questions about pressure coupling settings, namely isothermal compressibility. I hope you can guide me. A) By default gmx is taking the value for water but I was wondering if this has to be modified for other systems

Re: [gmx-users] want to remove H5T entry form HDB file / open terminal (P, O) for polymerization of i-motif

2011-07-08 Thread Mark Abraham
On 8/07/2011 11:06 PM, raghav singh wrote: Hi Justin, All, This is my recent log of PDB2GMX command... I have got what I wanted but I would really appreciate if one you experts have a look and let me know weather everything is fine. I have not calculated new charge distribution after removin

[gmx-users] want to remove H5T entry form HDB file / open terminal (P, O) for polymerization of i-motif

2011-07-08 Thread raghav singh
t; ==== > > Justin A. Lemkul > Ph.D. Candidate > ICTAS Doctoral Scholar > MILES-IGERT Trainee > Department of Biochemistry > Virginia Tech > Blacksburg, VA > jalemkul[at]vt.edu | (540) 231-9080 > http://www.bevanlab.biochem.vt.edu/Pages/P

Re: [gmx-users] Installation of gromacs-gpu on windows

2011-07-08 Thread Андрей Гончар
I think so! 2011/7/8 Szilárd Páll : > I think you made the right decision! :) > -- > Szilárd > > > > On Fri, Jul 8, 2011 at 12:50 PM, Андрей Гончар wrote: >> Thanks a lot! >> Now we decided to use gromacs under linux and the installation of >> gromacs and gromacs-gpu has passed without errors >>

Re: [gmx-users] Installation of gromacs-gpu on windows

2011-07-08 Thread Szilárd Páll
I think you made the right decision! :) -- Szilárd On Fri, Jul 8, 2011 at 12:50 PM, Андрей Гончар wrote: > Thanks a lot! > Now we decided to use gromacs under linux and the installation of > gromacs and gromacs-gpu has passed without errors > Problem is solved :) > > 2011/7/8 Szilárd Páll : >>

Re: [gmx-users] Installation of gromacs-gpu on windows

2011-07-08 Thread Андрей Гончар
Thanks a lot! Now we decided to use gromacs under linux and the installation of gromacs and gromacs-gpu has passed without errors Problem is solved :) 2011/7/8 Szilárd Páll : > Well, unfortunately I don't know of any step-by-step tutorial, but > from what I remember the workflow is pretty straight

Re: [gmx-users] xmgrace

2011-07-08 Thread Jussi Lehtola
On Fri, 8 Jul 2011 13:07:56 +0530 manoj gadhwal wrote: > Hello to all, >I am using the Gromacs 4.5.3 in Centos-5 and I > need the xmgrace or Grace for plotting the graph for output file . > But when I tried to install grace by the option *'yum install > grace*', there was no f

Re: [gmx-users] Labeled protein

2011-07-08 Thread Justin A. Lemkul
shiva birgani wrote: shiva birgani wrote: > Dear Justin > I have prepared the pdb structure of an organic compound. > This compound is applied as a lable which covalently and specifically > attaches to a Cys residue of our protein. > I want to attache the label to the protein and simulate

[gmx-users] Labeled protein

2011-07-08 Thread shiva birgani
shiva birgani wrote: > Dear Justin > I have prepared the pdb structure of an organic compound. > This compound is applied as a lable which covalently and specifically > attaches to a Cys residue of our protein. > I want to attache the label to the protein and simulate this complex. > what I need to

Re: [gmx-users] residue SASA

2011-07-08 Thread Diego Enry Gomes
This is what I mean by "quick and dirty". #!/bin/bash # Reads the output of "g_sas" per residue (-or) and writes only the residues you want. # Diego E.B. Gomes, Roberto D. Lins, Pedro G. Pascutti, Thereza A. Soares # mailto: di...@biof.ufrj.br #1 ) To perform multiple g_sas (will write out

Re: [gmx-users] which chain to select for MD simulation

2011-07-08 Thread bipin singh
Sir, You are right..I exactly mean the same as you interpretednow I am clear. Thanks a lot for your reply... On Fri, Jul 8, 2011 at 13:26, felmer...@uchile.cl wrote: > Hey, > > I agree it was unclear, but i guess he meant that he has a crystal > structure with two molecules in the asymmetric u

Re: [gmx-users] gnuplot

2011-07-08 Thread Mark Abraham
On 8/07/2011 6:35 PM, manoj gadhwal wrote: Hello to all, I am using the Gromacs 4.5.3 in Centos-5. When I tried to open the/*.xvg*/ file by gnuplot it shown the error. I am attaching the gnuplot error and the data of .xvg file. It show that line 9:invalid character. Please h

Re: [gmx-users] gnuplot

2011-07-08 Thread andrea spitaleri
Hi, in gnuplot first you must neglect the lines starting with @ # & gnuplot> set datafile commentschars "#@&" then you can plot the xvg file and On 07/08/2011 10:35 AM, manoj gadhwal wrote: Hello to all, �� I am using the Gromacs 4.5.3 in Centos-5. When I tried to open the/

[gmx-users] gnuplot

2011-07-08 Thread manoj gadhwal
Hello to all, I am using the Gromacs 4.5.3 in Centos-5. When I tried to open the* .xvg* file by gnuplot it shown the error. I am attaching the gnuplot error and the data of .xvg file. It show that line 9:invalid character. Please help me. Thanks in advance. * gnuplot error:* gn

Re: [gmx-users] which chain to select for MD simulation

2011-07-08 Thread felmer...@uchile.cl
Hey, I agree it was unclear, but i guess he meant that he has a crystal structure with two molecules in the asymmetric unit where he knows that the protein is a monomer in solution. Otherwise the question does not even make sense as you pointed out. If it is indeed the asymmetric unit thing, t

Re: [gmx-users] xmgrace

2011-07-08 Thread Mark Abraham
On 8/07/2011 5:37 PM, manoj gadhwal wrote: Hello to all, I am using the Gromacs 4.5.3 in Centos-5 and I need the xmgrace or Grace for plotting the graph for output file . But when I tried to install grace by the option */'yum install grace/*', there was no file to install. a

Re: [gmx-users] which chain to select for MD simulation

2011-07-08 Thread Mark Abraham
On 8/07/2011 4:52 PM, bipin singh wrote: Hello, My protein have two identical chains A and B and the backbone rmsd between the two chains is 0.33A. My problem is that how to select(on what basis) one chain out of the two for md simulation, whether the selection of one of the two chains(A or B

[gmx-users] xmgrace

2011-07-08 Thread manoj gadhwal
Hello to all, I am using the Gromacs 4.5.3 in Centos-5 and I need the xmgrace or Grace for plotting the graph for output file . But when I tried to install grace by the option *'yum install grace*', there was no file to install. and I am not able to install properly by the grace