Date: Tue, 26 Mar 2002 15:07:33 -0800
From: David Case
Subject: Re: GB model and belly

On Tue, Mar 26, 2002, wrote:
>
> Why can't AMBER (6) handle belly and igb=1?

It is not trivial to combine GB with frozen atoms, and the code has never
been incorporated into Amber. The issues involved are discussed in:

%A O. Guvench
%A J. Weiser
%A P. Shenkin
%A I. Kolossvary
%A W.C. Still
%T Application of the Frozen Atom Approximation to the GB/SA Continuum Model
for Solvation Free Energy
%J J. Computat. Chem.
%V 23
%P 214-221
%D 2002


> What is the proper combination
> of options to run a restrained simulation with continuum solvent, but not
> with "vacuum" options like igb=2 or 3?

Use ntr=1, not ibelly=1.

...regards...dac