Dear Zalikha,
The prmtop and inpcrd files made with AmberTools 12 should be backwards
compatible with earlier versions of AMBER, certainly back to Amber 9,
perhaps back to Amber 7. A few newer features, such as the variable 1-4
scaling used in the Glycam force field will not be processed correctly,
they'll simply be ignored, but most other things, such as FF12,
FF99SB-ILDN etc should work fine.
All the best
Ross
On 9/18/12 7:07 PM, "Zalikha Ibrahim" <zalikha.ibrahim.yahoo.com> wrote:
>Good day everyone,
>
>I am wondering, is that possible if we prepare our input file (incrd,
>prmtop) using currently released AmberTools (i.e AmberTools 1.5 and
>AmberTools 12) and proceed with simulation using older Amber (i.e.
>Amber8, Amber9, Amber10)? Can these older Amber support files prepared by
>updated force field and would it affect our simulation? This maybe very
>simple, but I really don't know.
>
>Lots of thanks in advance for your guidance
>
>Zalikha Ibrahim
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Received on Tue Sep 18 2012 - 19:30:04 PDT
