AMBER Archive (2007)

Subject: Re: AMBER: ff99 vs ff99SB for RNA

From: j j (fantvamp_at_gmail.com)
Date: Thu Jun 14 2007 - 10:30:21 CDT


What about parmbsc0
http://mmb.pcb.ub.es/PARMBSC0/
Maybe is the newest for nucleic acids.
JJ

2007/6/14, Carlos Simmerling <carlos.simmerling_at_gmail.com>:
> Hi Brent,
> ff99SB only changed the protein phi/psi specific torsions.
> I don';t recall saying DNA was different, I can't think of any
> reason why it would be.
> carlos
>
>
> On 6/14/07, Brent Krueger <kruegerb_at_hope.edu> wrote:
> > Everyone,
> >
> > I believe this is a pretty simple question about recent force
> > fields. In looking through the ff99SB frcmod file, it looks to me
> > like these dihedrals should not have any effect on DNA or RNA. But,
> > I recall Carlos mentioning something about a small difference in DNA
> > behavior between ff99 and ff99SB on this list recently.
> >
> > Am I remembering Carlos's statement incorrectly, or am I looking at
> > the frcmod file incorrectly?
> >
> >
> > Thanks,
> > Brent
> >
> >
> >
> >
> __________________________________________________________________
> > Brent P. Krueger phone: 616 395 7629
> > Associate Professor fax:
> 616 395 7118
> > Hope College SC 2120
> > Department of Chemistry
> > Holland, MI 49423
> >
> >
> >
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>
>
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