Did you load "RNA_CI.lib" ?
If you want to use ff99bsc0 on RNA molecule, you need to do.
On Wed, Jun 9, 2010 at 7:10 AM, Asfa Ali <asfa.iisc.gmail.com> wrote:
> Hi,
>
> I am using AmberTools 1.3 along with Amber 9 package. I did MD for rna
> using
> forcefields leaprc.ff99bsc0 as well as leaprc.ff99SB, however in both the
> cases the rna structure opens into two strands at the beginning of the
> production run (without any restraint).
>
> What forcefield should I use in order to keep the structure intact?
>
> Kindly help.
>
> Asfa.
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--
Best,
InSuk Joung
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Received on Wed Jun 09 2010 - 05:00:10 PDT
