[gmx-users] from amber to opls

[Rebeca García Fandiño]

Hi,
I have done a simulation of an organic molecule (a cyclodextrin) using GAFF/AMBER parameters, and I would like to compare the results using another force-field (OPLS or CHARMM). Is there any direct way to go from the topology for AMBER to the topology for OPLS or CHARMM?
Thanks a lot for your help in advance.
Best wishes,
Rebeca.

Dr. Rebeca Garcia
Santiago de Compostela University
Spain