[gmx-users] distance restraint

2013-03-01 Thread Linlin Sun
Hi everyone! I want to add the distance restraint for some atom pairs. However, it is not working at all. The yielded bond length can easily go beyond 0.5~0.6 nm. Has anyone got a hint? Thanks very much! [ distance_restraints] ; ai aj type index type' low up1 up2 fac 157910

Re: [gmx-users] distance restraint

2012-09-27 Thread Justin Lemkul
On 9/27/12 12:04 PM, Paula Andrea Delgado Pinzon wrote: Hello gromacs users, I am doing energy minimization of a big protein with distance restraint (i need to create interactions between a group of residues, so i need them to be close), but in the resultant pdb a don't see those residues cl

[gmx-users] distance restraint

2012-09-27 Thread Paula Andrea Delgado Pinzon
Hello gromacs users, I am doing energy minimization of a big protein with distance restraint (i need to create interactions between a group of residues, so i need them to be close), but in the resultant pdb a don't see those residues close, so how can I verify that the distance restraint are wo

Re: [gmx-users] Distance restraint energy terms

2010-02-07 Thread Mark Abraham
ikhil *From:* nikhil damle *To:* jalem...@vt.edu; Discussion list for GROMACS users *Sent:* Mon, 8 February, 2010 10:14:10 AM *Subject:* Re: [gmx-users] Distance restraint energy terms I have already included the [distance_restraints] section in .top file. In principl

Re: [gmx-users] Distance restraint energy terms

2010-02-07 Thread nikhil damle
equal for both pairs. Am I understanding correctly ? Regards, Nikhil From: nikhil damle To: jalem...@vt.edu; Discussion list for GROMACS users Sent: Mon, 8 February, 2010 10:14:10 AM Subject: Re: [gmx-users] Distance restraint energy terms I have already

Re: [gmx-users] Distance restraint energy terms

2010-02-07 Thread nikhil damle
constant to be 1000 even though fac coloumn > 1. I wish to restrain the distance between on two atoms. From: Justin A. Lemkul To: Discussion list for GROMACS users Sent: Sat, 6 February, 2010 6:10:12 PM Subject: Re: [gmx-users] Distance restraint energy te

Re: [gmx-users] Distance restraint energy terms

2010-02-06 Thread Justin A. Lemkul
nikhil damle wrote: Hi, I have applied distance restraints on my system during MD simulation through following options: "disre = simple" and disre_fc = 2000 in .mdp file. Now i wish to see the energy term corresponding to these restraints in principle to be written in .edr file. But g_energ

[gmx-users] Distance restraint energy terms

2010-02-05 Thread nikhil damle
Hi, I have applied distance restraints on my system during MD simulation through following options: "disre = simple" and disre_fc = 2000 in .mdp file. Now i wish to see the energy term corresponding to these restraints in principle to be written in .edr file. But g_energy programme does not list

Re: [gmx-users] distance restraint using bond with function 2

2010-01-07 Thread Justin A. Lemkul
On 1/7/10 3:48 PM, Feng Xu wrote: Hi, Justin, Thank you for your answer to my previous post. I just turned on the mail delivery from this list, so I reply you here, hope it is not so disruptive to this thread. My problem for the previous post is resolved, the problem is I should have modified

Re: [gmx-users] distance restraint using bond with function 2

2010-01-07 Thread Feng Xu
Hi, Justin, Thank you for your answer to my previous post. I just turned on the mail delivery from this list, so I reply you here, hope it is not so disruptive to this thread. My problem for the previous post is resolved, the problem is I should have modified files in ~username/gromacs/.., instead

Re: [gmx-users] distance restraint using bond with function 2

2010-01-07 Thread Justin A. Lemkul
On 1/7/10 2:58 PM, Hans HEINDL wrote: interstingly the distance restrain works well when one chooses the bond type 2 whatever this means physically [bonds] . . . . . . 1 614 2 5,761 40 What you've specified is not a distance restraint, it is just a bond. Bond types a

[gmx-users] distance restraint using bond with function 2

2010-01-07 Thread Hans HEINDL
interstingly the distance restrain works well when one chooses the bond type 2 whatever this means physically [bonds] . . . . . . 1 614 2 5,761 40 Hans -- gmx-users mailing listgmx-users@gromacs.org http://lists.gromacs.org/mailman/listinfo/gmx-users Please search the

Re: [gmx-users] Distance restraint problem with 4.0.5 version

2009-10-08 Thread Alexandre Suman de Araujo
Mark Abraham escreveu: Alexandre Suman de Araujo wrote: Hi Gmxers Some months ago I performed some simulations, with GMX 3.3.3 version, where I apply distance restraint between water oxygen atoms and a static dummy site located at the center of a sphere to keep waters inside this sphere. Aft

Re: [gmx-users] Distance restraint problem with 4.0.5 version

2009-10-07 Thread Mark Abraham
Alexandre Suman de Araujo wrote: Hi Gmxers Some months ago I performed some simulations, with GMX 3.3.3 version, where I apply distance restraint between water oxygen atoms and a static dummy site located at the center of a sphere to keep waters inside this sphere. After performed an upgrade

[gmx-users] Distance restraint problem with 4.0.5 version

2009-10-07 Thread Alexandre Suman de Araujo
Hi Gmxers Some months ago I performed some simulations, with GMX 3.3.3 version, where I apply distance restraint between water oxygen atoms and a static dummy site located at the center of a sphere to keep waters inside this sphere. After performed an upgrade to GMX 4.0.5 version this distance

[gmx-users] distance restraint energy from g_energy

2009-04-24 Thread jennifer johnston
Hi, My apologies in advance, I'm aware that this is probably a stupid question... If I've run a simulation using the umbrella sampling branch of the pull code (gromacs 3.3.1), in which I restrain a small molecule to a membrane, which options must I include when running g_energy to obtain the energy

Re: [gmx-users] distance restraint

2008-10-28 Thread Mark Abraham
Pathumwadee Intharathep wrote: Dear gmx's user, May I asked you some technicl Questions? Do you know how to make distance restraint in gromacs? what I did I have created file name "disre.itp" as shown below [ distance_restraints ] ; aiaj type index type low up1 up2 fac 489 1133 1

[gmx-users] distance restraint

2008-10-28 Thread Pathumwadee Intharathep
Dear gmx's user, May I asked you some technicl Questions? Do you know how to make distance restraint in gromacs? what I did I have created file name "disre.itp" as shown below [ distance_restraints ] ;   ai    aj type index type low up1 up2 fac    489   1133   1   1 1   0.25 0.35 0.40 1.0  

[gmx-users] Distance restraint

2007-10-02 Thread jacopo . sgrignani
Hi, I have a system with a protein and two different ligands. I'm trying to use distance restrain to hold the ligands inside the protein during a free energy calculation. If I use the distance restrains only between the protein and the first ligand I don't get any error, but if I introduce restrai