Re: [gmx-users] Protein Solvent Dynamics - Coordinates for docking

2009-10-22 Thread Mark Abraham
ram bio wrote: Dear Mark, Thanks and you are right, that when a docked complex (protein + ligand) is simulated, the favorable ligand binding poses can be predicted using MD (longer runs). What I am trying to do here presently is not to simulate a docked complex, but to generate a modelled protei

Re: [gmx-users] Protein Solvent Dynamics - Coordinates for docking

2009-10-22 Thread ram bio
Dear Mark, Thanks and you are right, that when a docked complex (protein + ligand) is simulated, the favorable ligand binding poses can be predicted using MD (longer runs). What I am trying to do here presently is not to simulate a docked complex, but to generate a modelled protein lowest energy c

Re: [gmx-users] Protein Solvent Dynamics - Coordinates for docking

2009-10-22 Thread Mark Abraham
ram bio wrote: Dear Mark, You mean that I should consider a configuration with the lowest total energy for docking studies..Please clarify and suggest me. If you read your docking program's documentation, they are using their "energy" as a some kind of approximation to a free energy of ligand

Re: [gmx-users] Protein Solvent Dynamics - Coordinates for docking

2009-10-22 Thread ram bio
Dear Mark, You mean that I should consider a configuration with the lowest total energy for docking studies..Please clarify and suggest me. Thanks, Ram On Thu, Oct 22, 2009 at 3:56 AM, Mark Abraham wrote: > ram bio wrote: >> >> Dear Justin, >> >> Thanks for the suggestion and advice. >> As i h

Re: [gmx-users] Protein Solvent Dynamics - Coordinates for docking

2009-10-21 Thread Mark Abraham
ram bio wrote: Dear Justin, Thanks for the suggestion and advice. As i have used a modelled protein and want to obtain the lowest energy configuration of the protein by doing dynamics, That's all very well, but what will that give you other than a set where the partition of total energy into

Re: [gmx-users] Protein Solvent Dynamics - Coordinates for docking

2009-10-21 Thread ram bio
Dear Justin, Thanks for the advice, will try to follow using grace. Ram On Wed, Oct 21, 2009 at 8:25 PM, Justin A. Lemkul wrote: > > > ram bio wrote: >> >> Dear Justin. >> >> Thanks for the suggestion, definitely i would run next time for a >> longer time 2-10 ns. >> Here, I want to learn the a

Re: [gmx-users] Protein Solvent Dynamics - Coordinates for docking

2009-10-21 Thread Justin A. Lemkul
ram bio wrote: Dear Justin. Thanks for the suggestion, definitely i would run next time for a longer time 2-10 ns. Here, I want to learn the analysis part of the mdrun, In order to locate the lowest energy frame I executed command g_energy -f md_0_1.edr -o PE.xvg and the output was Statistic

Re: [gmx-users] Protein Solvent Dynamics - Coordinates for docking

2009-10-21 Thread ram bio
Dear Justin. Thanks for the suggestion, definitely i would run next time for a longer time 2-10 ns. Here, I want to learn the analysis part of the mdrun, In order to locate the lowest energy frame I executed command g_energy -f md_0_1.edr -o PE.xvg and the output was Statistics over 51 steps

Re: [gmx-users] Protein Solvent Dynamics - Coordinates for docking

2009-10-21 Thread Justin A. Lemkul
ram bio wrote: Dear Justin, Thanks for the suggestion and advice. As i have used a modelled protein and want to obtain the lowest energy configuration of the protein by doing dynamics, i want to collect the structure (coordinates in pdb) representing average of all the frames/configurations pr

Re: [gmx-users] Protein Solvent Dynamics - Coordinates for docking

2009-10-21 Thread ram bio
Dear Justin, Thanks for the suggestion and advice. As i have used a modelled protein and want to obtain the lowest energy configuration of the protein by doing dynamics, i want to collect the structure (coordinates in pdb) representing average of all the frames/configurations produced in MD and al

Re: [gmx-users] Protein Solvent Dynamics - Coordinates for docking

2009-10-21 Thread Justin A. Lemkul
ram bio wrote: Dear Mark, Thanks for the advice and suggestions. I have used trjconv command as in the justin tutorial (trjconv -s md_0_1.tpr -f md_0_1.xtc -o md_0_1_noPBC.xtc -pbc mol -ur compact), but when i loaded the md_0_1.gro followed by md_0_1_noPBC.xtc in VMD, i could not see the prot

Re: [gmx-users] Protein Solvent Dynamics - Coordinates for docking

2009-10-21 Thread ram bio
Dear Mark, Thanks for the advice and suggestions. I have used trjconv command as in the justin tutorial (trjconv -s md_0_1.tpr -f md_0_1.xtc -o md_0_1_noPBC.xtc -pbc mol -ur compact), but when i loaded the md_0_1.gro followed by md_0_1_noPBC.xtc in VMD, i could not see the protein jumping out of

Re: [gmx-users] Protein Solvent Dynamics - Coordinates for docking

2009-10-21 Thread Mark Abraham
ram bio wrote: Dear Gromacs Users, I have performed a protein in solvent simulation for 1 ns, the got the output files as: md_0_1.cpt md_0_1.edr md_0_1.gro md_0_1.log md_0_1.tpr md_0_1.trr md_0_1.xtc. I am following Justin Tutorial. Can anybody tell me how to extract the coordinates ? of t

[gmx-users] Protein Solvent Dynamics - Coordinates for docking

2009-10-21 Thread ram bio
Dear Gromacs Users, I have performed a protein in solvent simulation for 1 ns, the got the output files as: md_0_1.cpt md_0_1.edr md_0_1.gro md_0_1.log md_0_1.tpr md_0_1.trr md_0_1.xtc. I am following Justin Tutorial. Can anybody tell me how to extract the coordinates ? of the simulated prot