STEVENAZZI ANDREA wrote:
Dear David
I did check the mailing list archives and could not find anything
related to.
Moreover, I have experienced some problems with version 3.3 of Gromacs
related to PME (see the mailing list archives) and I was forced to
install the 3.2.1 version in order to run a simulation.
There is a workaround for this too on the ftp site.

So you are telling me that dihedral restraints can not be set up in the
3.2 version?
Don't recall but probably not.

I beg you pardon if these are stupid questions, but I have started to
use Gromacs just 2 weeks ago.
Thanks
Andrea


STEVENAZZI ANDREA wrote:
Dear Gromacs Users

I am trying to use Gromacs for the MD of a small modified peptide
(just
4 residues with one ethylated) and I would like to set up one dihedral

restraint in the topology file.

I have not found anything useful on the paper manual regarding
dihedral
restraints and thought that it might not be possible to set them.

However, analysing the mdout.mdp file I realised that the keyword
dihre
(dihedral angle restraints) is actually there and can be turned on.

If that is true, does anybody know the right lines to insert in the topology file in order to set properly a dihedral restraints?

Thanks


manual is a bit outdated. check mailing list archives. it is possible with 3.3
Best regards

Andrea

Andrea Stevenazzi

Medicinal & Computer Chemistry

Italfarmaco Research Centre

Italfarmaco SpA

Via dei Lavoratori 54

20092 Cinisello Balsamo

Milan

E-mail: [EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>
Tel: +39-02-64433097



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--
David.
________________________________________________________________________
David van der Spoel, PhD, Assoc. Prof., Molecular Biophysics group,
Dept. of Cell and Molecular Biology, Uppsala University.
Husargatan 3, Box 596,          75124 Uppsala, Sweden
phone:  46 18 471 4205          fax: 46 18 511 755
[EMAIL PROTECTED]       [EMAIL PROTECTED]   http://folding.bmc.uu.se
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