[gmx-users] convert an itp from gmx to olps?

[nicolis@guideo.fr]

Hello,
I have an .itp topology of a small drug for the gmx forcefield and I want to 
convert it to use the opls.
What sections should I change in addition of changing the atom types?
I know there are different definitions for the planarities (no impropers in opls 
but dihedrals with a periodicity of 2?) but what about the bond and angle 
constants?
Thank you,
Ioannis