Re: [AMBER] CHARM force field

From: Jason Swails <>
Date: Mon, 15 Aug 2016 21:50:22 -0400

On Mon, Aug 15, 2016 at 4:48 PM, Chi Jin <> wrote:

> Dear faculty,
> We want to introduce 2D dihedral energy corrections to the force field of
> our system. How should we implement CHARMM force field within Amber (for
> example, by loading a CHARM lib in and modify the force constant
> of the desired dihedrals in that lib file) ?

​CHARMM-specific parameters can only be loaded through ParmEd/chamber.
Your best bet is to create the system using CHARMM and then use the chamber
command in ParmEd to convert it.


Jason M. Swails
AMBER mailing list
Received on Mon Aug 15 2016 - 19:00:02 PDT
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