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Hello Kathryn--

> > 
> > Hello Daniel--
> > 
> > >
> > > i try to run simulated annealing with a n- and c-terminal protected
> > > peptide.
> > > I managed to get the .psf file but the template generation is
> > > aborting
> > > with the following error.
> > >
> > >
> > > %CODIMP-ERR: missing improper parameters %%%%%%%%%%%%%%%%%%%%%
> > >   improper energy constant missing.
> > >   target improper value missing.
> > >   periodicity missing.
> > >   ATOM1: SEGId=" ", RESId="143 ", NAME="HA1 ", CHEMical="HA "
> > >   ATOM2: SEGId=" ", RESId="143 ", NAME="HA2 ", CHEMical="HA "
> > >   ATOM3: SEGId=" ", RESId="143 ", NAME="C ", CHEMical="C "
> > >   ATOM4: SEGId=" ", RESId="143 ", NAME="HA3 ", CHEMical="HA "
> > >  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> > >  %CODIMP-ERR: program will be aborted.
> > >
> > > So i guess these data are missing in some file.
> > > This is the ACE group. I did see it listed in the protein.top file,
> > > so
> > > why do the parameter miss ?
> > 
> > are you using toppar/protein.par for the parameters? The parameters
> > for
> > this improper is defined in that file.
> > 
> What platform again?

This should be a platform-independent problem.

best regards--
Charles
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