[gmx-users] topology with all hydrogens

2011-02-06 Thread mohsen ramezanpour
Dear All I want to generate a topology file in 43A1 force field for a small molecule. Of course I want one which contains all hydrogens in that. PRODRG doesn't generate like this.do you know another server with these conditions? Thanks in advance Mohsen -- gmx-users mailing list

[gmx-users] gnuplot

2011-02-06 Thread delara aghaie
Dear gromacs users I am using hpc system of our university to work on molecular dynamics simulation with gromacs. The gormacs has been installed there and I can connect to the hpc system and submit my jobs. Now I want to know that for using gnuplot to have my graphs, the gnuplot program should

Re: [gmx-users] gnuplot

2011-02-06 Thread Tim Harder
Hey, you want to install gnuplot on your local system. As most of the analysis, plotting is most likely done on our local machine. Without knowledge of your system this is just a stab in the dark. For linux, open a terminal and type sudo apt-get install gnuplot or open the software install

Re: [gmx-users] topology with all hydrogens

2011-02-06 Thread Tsjerk Wassenaar
Hi Mohsen, So you want to have a topology with all atoms for use in a united atom force field? Seems a bit awkward... PRODRG will only include polar hydrogens, in accordance with the GROMOS force field. It won't be a particular trustworthy topology, though, but you've probably caught the words of

[gmx-users] How to include specific atom in force field ffG43a1

2011-02-06 Thread Rini Gupta
Dear gmx users, I am using gromacs (version 4.0.7) first time to setup a 2-butoxyethanol-water simulation. I created topology and coordinate file for BE using PRODRG server. Then a generated a box containing 20 BE and 480 water molecules using genbox. Now, when I am

Re: [gmx-users] topology with all hydrogens

2011-02-06 Thread mohsen ramezanpour
Dear Dr.Tsjerk I know it.I know PRODRG is not very valid for evaluating free energies(According to Dr.Justin article) too. But the problem is here: If I know all of hydrigenes are polar,how can I have a topology with all of them? Actually there are so many polar H in my small molecules which are

Re: [gmx-users] topology with all hydrogens

2011-02-06 Thread Tsjerk Wassenaar
Hi Mohsen, Now I wouldn't want to get in the way of excellent ideas :) Check the PRODRG FAQ. It is explained there (somewhere) how to force inclusion of hydrogens. Cheers, Tsjerk On Feb 6, 2011 11:39 AM, mohsen ramezanpour ramezanpour.moh...@gmail.com wrote: Dear Dr.Tsjerk I know it.I know

Re: [gmx-users] Charge groups

2011-02-06 Thread Justin A. Lemkul
mohsen ramezanpour wrote: Dear All I read charge groups section in the gromacs manual. I have a question.please let me know it's answer. Is it necessary that our charge groups be made of afew number of atoms? in the other words ,if I have a charge group with 50 atom,Is my results valid?

Re: [gmx-users] How to include specific atom in force field ffG43a1

2011-02-06 Thread Justin A. Lemkul
Rini Gupta wrote: Dear gmx users, I am using gromacs (version 4.0.7) first time to setup a 2-butoxyethanol-water simulation. I created topology and coordinate file for BE using PRODRG server. Then a generated a box containing 20 BE and 480 water molecules using genbox. Now, when I am trying

[gmx-users] Warning: atom names in CG topology file and CG pdb file do not match

2011-02-06 Thread Faezeh Kargar
htmldiv Dear All I searched my problem in users mailing list but I could not find the answer. please help me with this. I am learning the CG Martini force filed using the tutorial protein in water for protein ubiquitin. so I did the things like below: 1. awk -f atom2cg_v2.1.awk 1UBQ.pdb

Re: [gmx-users] Warning: atom names in CG topology file and CG pdb file do not match

2011-02-06 Thread Justin A. Lemkul
Faezeh Kargar wrote: Dear All I searched my problem in users mailing list but I could not find the answer. please help me with this. I am learning the CG Martini force filed using the tutorial protein in water for protein ubiquitin. so I did the things like below: 1. awk -f

[gmx-users] include a few .itp files

2011-02-06 Thread Алексей Раевский
Hi. I have some problems using ff_charmm27 ported in gromacs 4.5.3. 1) I want to build a topology of phosphorylated tyrosine in one position of activated protein. I can make it with swissparam.ch server (getting .itp) or by my hands. But the situation is complicated enough for me, because of

Re: [gmx-users] include a few .itp files

2011-02-06 Thread Justin A. Lemkul
Алексей Раевский wrote: Hi. I have some problems using ff_charmm27 ported in gromacs 4.5.3. The CHARMM ports are no longer necessary; CHARMM27 is incorporated into Gromacs 4.5.3 by default. 1) I want to build a topology of phosphorylated tyrosine in one position of activated protein. I